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WO2018035997A1 - Preceding vehicle road condition display system and method - Google Patents

Preceding vehicle road condition display system and method Download PDF

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Publication number
WO2018035997A1
WO2018035997A1 PCT/CN2016/106096 CN2016106096W WO2018035997A1 WO 2018035997 A1 WO2018035997 A1 WO 2018035997A1 CN 2016106096 W CN2016106096 W CN 2016106096W WO 2018035997 A1 WO2018035997 A1 WO 2018035997A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
unit
road condition
onboard unit
onboard
Prior art date
Application number
PCT/CN2016/106096
Other languages
French (fr)
Chinese (zh)
Inventor
刘均
刘新
宋朝忠
欧阳张鹏
Original Assignee
深圳市元征科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市元征科技股份有限公司 filed Critical 深圳市元征科技股份有限公司
Publication of WO2018035997A1 publication Critical patent/WO2018035997A1/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096791—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is another vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0965—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages responding to signals from another vehicle, e.g. emergency vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
    • G08G1/0112—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from the vehicle, e.g. floating car data [FCD]
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
    • G08G1/0141—Measuring and analyzing of parameters relative to traffic conditions for specific applications for traffic information dissemination

Definitions

  • the invention relates to the technical field of driving safety, in particular to a front road condition display system and method.
  • the vehicles usually follow the car while driving, that is, they are all in the same lane. Therefore, if a sudden accident occurs in the preceding vehicle, the rear-viewer's line of sight is blocked by the preceding vehicle, so that the driver of the rear vehicle cannot clearly understand the road ahead, which may lead to an accident.
  • the front road condition of the front vehicle is photographed by the camera on the front vehicle and displayed synchronously on the rear display screen of the front vehicle, so that the rear vehicle driver can know the road condition information blocked by the preceding vehicle in real time, but this
  • the class approach requires a large display to be installed on all vehicles, so this approach is not only costly, but also difficult to achieve.
  • the main object of the present invention is to provide a front-vehicle road condition display system and method, which aims to solve the technical problem of how to make the rear car line of sight blocked by the preceding vehicle in a more simple and operability manner.
  • the present invention provides a front vehicle road condition display system, the front vehicle road condition display system comprising: a plurality of first vehicle-mounted units, a plurality of second vehicle-mounted units, and a plurality of roadside units, wherein the first vehicle-mounted unit is installed On the first vehicle, the second onboard unit is mounted on the second vehicle, and the first onboard unit and the second onboard unit respectively perform wireless communication with the roadside unit;
  • the first onboard unit is configured to collect safety information of the first vehicle in real time through an in-vehicle terminal, and send the safety information to the roadside unit, wherein the in-vehicle terminal includes at least an in-vehicle camera,
  • the safety information includes at least a road condition video image of the first vehicle collected by the onboard camera;
  • the roadside unit is configured to receive the security information sent by the first onboard unit, and forward the security information to the second onboard unit, where the second vehicle is located at the first The rear of the vehicle;
  • the second onboard unit is configured to receive the safety information sent by the first onboard unit forwarded by the roadside unit, and display at least the road condition video image on the second vehicle.
  • the roadside unit is mounted on a traffic device of a road on which the vehicle travels or on a communication base station on the road side.
  • the first onboard unit is further configured to: when the first onboard unit is located in a communication range in which the roadside unit is located, the security information currently collected by the in-vehicle terminal in real time is in a broadcast form. Sent to the roadside unit;
  • the roadside unit is further configured to: when detecting that the first onboard unit and the second onboard unit are located in the communication range at the same time, the received security sent by the first onboard unit The information is forwarded to the second onboard unit in a broadcast form;
  • the second onboard unit is further configured to: when the second onboard unit is located in the communication range, receive the safety information sent by the first onboard unit that is forwarded by the roadside unit in a broadcast form, And displaying at least the road condition video image on the second vehicle.
  • the preceding vehicle road condition display system further comprises:
  • a road condition monitoring platform configured to receive the safety information collected by the first onboard unit and uploaded by the roadside unit, perform road condition simulation according to the safety information, obtain a simulation result, and according to the simulation result,
  • the first onboard unit sends corresponding reminder information, wherein the security information further includes at least speed information of the vehicle and GPS information.
  • the road condition monitoring platform is further configured to:
  • the safety information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to The roadside unit corresponding to the second onboard unit is forwarded to the second onboard unit by a roadside unit corresponding to the second onboard unit.
  • the present invention further provides a front road condition display method, and the front vehicle road condition display method includes:
  • the first in-vehicle unit collects safety information of the first vehicle in real time through the in-vehicle terminal, and transmits the safety information to the roadside unit, wherein the in-vehicle terminal includes at least an in-vehicle camera, and the safety information includes at least the in-vehicle camera collection. a road condition video image in front of the first vehicle;
  • the roadside unit Receiving, by the roadside unit, the safety information sent by the first onboard unit, and forwarding the safety information to a second onboard unit, wherein the first onboard unit is mounted on a first vehicle, a second onboard unit is mounted on the second vehicle, and the second vehicle is located behind the first vehicle;
  • the second onboard unit receives the security information sent by the first onboard unit forwarded by the roadside unit, and displays at least the road condition video image on the second vehicle.
  • the roadside unit is mounted on a traffic device of a road on which the vehicle travels or on a communication base station on the road side.
  • the first onboard unit collects the safety information of the first vehicle in real time by the vehicle-mounted terminal, and the sending the safety information to the roadside unit specifically includes:
  • the first onboard unit When the first onboard unit is located in the communication range in which the roadside unit is located, the first onboard unit transmits the safety information currently collected by the in-vehicle terminal in real time to the roadside unit in a broadcast form. ;
  • Receiving, by the roadside unit, the security information sent by the first onboard unit, and forwarding the security information to the second onboard unit specifically includes:
  • the roadside unit transmits the received safety information by the first onboard unit in a broadcast form Forwarding to the second onboard unit;
  • Receiving, by the second onboard unit, the security information sent by the first onboard unit that is forwarded by the roadside unit, and displaying the road condition video image on the second vehicle specifically includes:
  • the second onboard unit When the second onboard unit is located in the communication range, the second onboard unit receives the security information sent by the first onboard unit forwarded by the roadside unit in a broadcast form, and in the At least the road condition video image is displayed on the second vehicle.
  • the preceding vehicle road condition display method further includes:
  • the roadside unit uploads the received safety information to a road condition monitoring platform
  • the road condition monitoring platform receives the safety information collected by the roadside unit and collected by the first vehicle-mounted unit, performs road condition simulation according to the safety information, obtains a simulation result, and according to the simulation result,
  • the first onboard unit sends corresponding reminder information, wherein the safety information further includes at least speed information of the vehicle and GPS information.
  • the preceding vehicle road condition display method further includes:
  • the safety information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to The roadside unit corresponding to the second onboard unit is forwarded to the second onboard unit by a roadside unit corresponding to the second onboard unit.
  • the safety information collection of the vehicle is completed by the vehicle-mounted unit in the vehicle, and at the same time, the safety information collected by the vehicle-mounted unit of the preceding vehicle is forwarded to the vehicle-mounted unit of the following vehicle through the external roadside unit, thereby making the following vehicle
  • the front road condition of the preceding vehicle can also be grasped in real time, thereby improving the driving safety of the vehicle.
  • FIG. 1 is a schematic diagram of functional modules of a first embodiment of a front vehicle road condition display system of the present invention
  • FIG. 2 is a schematic diagram of a connection structure of an embodiment of a front vehicle road condition display system according to the present invention
  • FIG. 3 is a schematic diagram of functional modules of a second embodiment of a front road condition display system of the present invention.
  • FIG. 4 is a schematic diagram of a connection architecture of another embodiment of a preceding vehicle road condition display system according to the present invention.
  • FIG. 5 is a schematic flow chart of a first embodiment of a roadway display method according to the present invention.
  • FIG. 6 is a schematic flow chart of a second embodiment of a method for displaying a road condition of a preceding vehicle according to the present invention.
  • FIG. 1 is a schematic diagram of functional modules of a first embodiment of a front vehicle road condition display system according to the present invention.
  • the front vehicle road condition display system includes a plurality of first vehicle-mounted units 10, a plurality of second vehicle-mounted units 20, and a plurality of roadside units 30, in order to display the front road condition information of the preceding vehicle to the rear vehicle.
  • the first onboard unit 10 is mounted on the first vehicle
  • the second onboard unit 20 is mounted on the second vehicle
  • the second vehicle is located behind the first vehicle.
  • the first onboard unit 10 and the second onboard unit 20 perform wireless communication with the roadside unit 30, for example, using microwave communication.
  • the first vehicle-mounted unit 10 collects the safety information of the first vehicle in real time through the vehicle-mounted terminal, and transmits the safety information to the roadside unit.
  • the vehicle-mounted terminal includes at least the vehicle-mounted camera, and the safety information includes at least the vehicle-mounted camera. Video image of the road ahead of the first vehicle;
  • the vehicle-mounted terminal on the vehicle may include various sensing terminals, such as a tire pressure sensor, a GPS sensor, etc., in addition to the vehicle-mounted camera. Therefore, the corresponding safety information is in addition to the road condition video image of the vehicle in front of the vehicle captured by the vehicle camera. It may include vehicle tire pressure collected by the tire pressure sensor, real-time geographic location of the vehicle collected by the GPS sensor, and the like.
  • the roadside unit 30 receives the security information sent by the first onboard unit 10, and forwards the security information to the second onboard unit 20, and the second onboard unit 20 receives the first onboard unit forwarded by the roadside unit 30.
  • the safety information transmitted by the unit 10 and at least the road condition video image is displayed on the second vehicle, such as displaying a road condition video image on the central control screen or the interior rear view mirror of the vehicle.
  • the roadside unit 30 can be installed on the traffic device of the road on which the vehicle travels or on the communication base station on the road side, such as integrated on traffic lights, traffic speed measuring devices, traffic photographing devices, etc. and mainly Arranged in dangerous locations with driving.
  • the roadside unit 30 is preferably fixed. Therefore, when the vehicle passes the roadside unit 30, the safety information collected by itself is uploaded to the roadside unit 30, and then forwarded to the rear by the roadside unit 30.
  • the vehicle receives the safety information collected by the roadside unit 30 and is collected by the preceding vehicle, thereby indirectly realizing the data transmission between the vehicle and the vehicle, so that the rear vehicle can also know the road condition in front of the preceding vehicle in real time. information.
  • the safety information collection of the vehicle is completed by the vehicle-mounted unit in the vehicle, and at the same time, the safety information collected by the vehicle-mounted unit of the preceding vehicle is forwarded to the vehicle-mounted unit of the following vehicle through the external roadside unit, thereby
  • the car can also grasp the road ahead in front of the car in order to improve the driving safety of the vehicle.
  • the first onboard unit 10 and the second onboard unit 20 are The roadside units 30 preferably communicate in a broadcast form.
  • the roadside unit 30 can be correspondingly provided.
  • the communication range for example, within ⁇ 20 m centered on the roadside unit 30, enables communication.
  • An onboard unit 10 first encodes the collected security information and then sends it to the roadside unit 30, and the roadside unit 30 can determine which security information to deliver to the current vehicle based on the encoded flag.
  • the communication range of the current roadside unit 30 there are three vehicles A, B, and C, and A, B, and C respectively upload security information coded as a1, b2, and c3, and the roadside unit 30 according to the coded mark. (Having the chronological order of reception), a1 is sent to B, and c3 is sent to C, and c3 is sent to the vehicle that enters the communication range of the roadside unit 30 later.
  • the first onboard unit 10 is specifically configured to: when the first onboard unit 10 is located in the communication range where the roadside unit 30 is located, transmit the security information currently collected by the in-vehicle terminal in real time to the roadside unit.
  • the roadside unit 30 is specifically configured to: when detecting that the first onboard unit 10 and the second onboard unit 20 are simultaneously located within the communication range of the roadside unit 30, the received safety of the first onboard unit 10
  • the information is forwarded to the second onboard unit 20 in a broadcast form
  • the second onboard unit 20 is specifically configured to: when the second onboard unit 20 is located within the communication range of the roadside unit 30, receive the way that the wayside unit 30 forwards in a broadcast form
  • the safety information transmitted by the onboard unit 10 and at least the road condition video image is displayed on the second vehicle.
  • data transmission is performed by using a broadcast method, thereby ensuring stability of data transmission.
  • the accuracy of data transmission is improved.
  • FIG. 3 is a schematic diagram of functional modules of a second embodiment of a front vehicle road condition display system according to the present invention.
  • the preceding vehicle road condition display system further includes: a road condition monitoring platform 40, and the road condition monitoring platform 40 communicates with a plurality of roadside units 30, such as wireless communication through a mobile communication network, or through a wired connection. Wired communication, etc.
  • the road condition monitoring platform 40 receives the safety information collected by the first onboard unit 10 uploaded by the roadside unit 30, performs road condition simulation according to the safety information, obtains a simulation result, and sends the simulation result to the first onboard unit 10 according to the simulation result. Sending corresponding reminding information, wherein the safety information further includes at least speed information of the vehicle and GPS information.
  • the road condition monitoring platform 40 can perform real-time monitoring on all vehicles in a certain road segment, and specifically simulate the road conditions according to the received vehicle safety information uploaded by the roadside unit 30, such as simulating the traveling speed, direction and real-time of each vehicle.
  • the road condition monitoring platform 40 is further configured to: the communication range corresponding to the different roadside units of the first onboard unit 10 and the second onboard unit 20 respectively
  • the security information uploaded by the roadside unit corresponding to the first onboard unit 10 is forwarded to the roadside unit corresponding to the second onboard unit 20 for forwarding to the roadside unit corresponding to the second onboard unit 20 Two onboard units 20.
  • the first onboard unit 10 is located in the communication range corresponding to the roadside unit A
  • the second onboard unit 20 is located in the communication range corresponding to the roadside unit B
  • the roadside units A and B respectively and the road condition.
  • the monitoring platform 40 communicates.
  • the problem of how to transmit safety information under the special scenario that the two vehicles are in different roadside units can be solved.
  • the collected forward road condition video image is sent to the roadside unit A in real time, and then uploaded to the road condition monitoring platform 40 by the roadside unit A. Then, the road condition monitoring platform 40 is sent to the roadside unit B, and finally sent to the second vehicle unit 20 by the roadside unit B, so that the rear vehicle driver can know the front vehicle condition of the preceding vehicle in real time.
  • FIG. 5 is a schematic flow chart of a first embodiment of a roadway display method according to the present invention.
  • the front road condition display method includes:
  • Step S110 The first vehicle-mounted unit collects safety information of the first vehicle in real time through the vehicle-mounted terminal, and transmits the safety information to the roadside unit, wherein the vehicle-mounted terminal includes at least the vehicle-mounted camera, and the safety information includes at least the front of the first vehicle collected by the vehicle-mounted camera.
  • Road video image the vehicle-mounted terminal includes at least the vehicle-mounted camera, and the safety information includes at least the front of the first vehicle collected by the vehicle-mounted camera.
  • Step S120 the roadside unit receives the safety information sent by the first onboard unit, and forwards the safety information to the second onboard unit, wherein the first onboard unit is mounted on the first vehicle, and the second onboard unit is mounted on the second vehicle. Upper, and the second vehicle is located behind the first vehicle;
  • Step S130 the second onboard unit receives the safety information transmitted by the first onboard unit forwarded by the roadside unit, and displays at least the road condition video image on the second vehicle.
  • the first vehicle-mounted unit 10 collects the safety information of the first vehicle in real time through the vehicle-mounted terminal, and transmits the safety information to the roadside unit.
  • the vehicle-mounted terminal includes at least the vehicle-mounted camera, and the safety information includes at least the vehicle-mounted camera. Video image of the road ahead of the first vehicle;
  • the vehicle-mounted terminal on the vehicle may include various sensing terminals, such as a tire pressure sensor, a GPS sensor, etc., in addition to the vehicle-mounted camera. Therefore, the corresponding safety information is in addition to the road condition video image of the vehicle in front of the vehicle captured by the vehicle camera. It may include vehicle tire pressure collected by the tire pressure sensor, real-time geographic location of the vehicle collected by the GPS sensor, and the like.
  • the roadside unit 30 receives the security information sent by the first onboard unit 10, and forwards the security information to the second onboard unit 20, and the second onboard unit 20 receives the first onboard unit forwarded by the roadside unit 30.
  • the safety information transmitted by the unit 10 and at least the road condition video image is displayed on the second vehicle, such as displaying a road condition video image on the central control screen or the interior rear view mirror of the vehicle.
  • the roadside unit 30 can be installed on the traffic device of the road on which the vehicle travels or on the communication base station on the road side, such as integrated on traffic lights, traffic speed measuring devices, traffic photographing devices, etc. and mainly Arranged in dangerous locations with driving.
  • the roadside unit 30 is preferably fixed. Therefore, when the vehicle passes the roadside unit 30, the safety information collected by itself is uploaded to the roadside unit 30, and then forwarded to the rear by the roadside unit 30.
  • the vehicle receives the safety information collected by the roadside unit 30 and is collected by the preceding vehicle, thereby indirectly realizing the data transmission between the vehicle and the vehicle, so that the rear vehicle can also know the road condition in front of the preceding vehicle in real time. information.
  • the safety information collection of the vehicle is completed by the vehicle-mounted unit in the vehicle, and at the same time, the safety information collected by the vehicle-mounted unit of the preceding vehicle is forwarded to the vehicle-mounted unit of the following vehicle through the external roadside unit, thereby
  • the car can also grasp the road ahead in front of the car in order to improve the driving safety of the vehicle.
  • the step S110 specifically includes: when the first onboard unit is located in the communication range where the roadside unit is located, the first onboard unit collects the current onboard vehicle through the vehicle. The safety information is sent to the roadside unit in broadcast form;
  • the step S120 specifically includes: when detecting that the second onboard unit is located in the communication range, the roadside unit forwards the received safety information sent by the first onboard unit to the second onboard unit in a broadcast form;
  • step S130 specifically includes: when the second onboard unit is located in the communication range, the second onboard unit receives the safety information sent by the first onboard unit forwarded by the roadside unit in a broadcast form, and displays at least the road condition video on the second vehicle. image.
  • the first in-vehicle unit 10 the second in-vehicle unit 20 and the roadside unit 30 preferably communicate in a broadcast form.
  • the roadside unit 30 can be correspondingly provided.
  • the communication range for example, within ⁇ 20 m centered on the roadside unit 30, enables communication.
  • An onboard unit 10 first encodes the collected security information and then sends it to the roadside unit 30, and the roadside unit 30 can determine which security information to deliver to the current vehicle based on the encoded flag.
  • the communication range of the current roadside unit 30 there are three vehicles A, B, and C, and A, B, and C respectively upload security information coded as a1, b2, and c3, and the roadside unit 30 according to the coded mark. (Having the chronological order of reception), a1 is sent to B, and c3 is sent to C, and c3 is sent to the vehicle that enters the communication range of the roadside unit 30 later.
  • the first in-vehicle unit 10 when the first in-vehicle unit 10 is located in the communication range where the roadside unit 30 is located, the first in-vehicle unit 10 transmits the security information currently collected by the in-vehicle terminal in real time to the roadside unit 30;
  • the edge unit 30 When detecting that the first onboard unit 10 and the second onboard unit 20 are simultaneously located within the communication range of the roadside unit 30, the edge unit 30 forwards the received security information transmitted by the first onboard unit 10 to the second in broadcast form.
  • data transmission is performed by using a broadcast method, thereby ensuring stability of data transmission.
  • the accuracy of data transmission is improved.
  • FIG. 6 is a schematic flow chart of a second embodiment of a roadway display method according to the present invention. Based on the first embodiment of the foregoing method, in the embodiment, the front road condition display method further includes:
  • Step S210 the roadside unit uploads the received safety information to the road condition monitoring platform
  • Step S220 The road condition monitoring platform receives the safety information collected by the first vehicle unit uploaded by the roadside unit, performs road condition simulation according to the safety information, obtains a simulation result, and sends corresponding reminding information to the first vehicle unit according to the simulation result, wherein
  • the safety information also includes at least the speed information of the vehicle and the GPS information.
  • the road condition monitoring platform 40 receives the safety information collected by the first onboard unit 10 uploaded by the roadside unit 30, performs road condition simulation according to the safety information, obtains a simulation result, and sends the simulation result to the first onboard unit 10 according to the simulation result. Sending corresponding reminding information, wherein the safety information further includes at least speed information of the vehicle and GPS information.
  • the road condition monitoring platform 40 can perform real-time monitoring on all vehicles in a certain road segment, and specifically simulate the road conditions according to the received vehicle safety information uploaded by the roadside unit 30, such as simulating the traveling speed, direction and real-time of each vehicle.
  • the front vehicle road condition display method further includes: when the first vehicle unit and the second vehicle unit are respectively located in communication ranges corresponding to different roadside units The security information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to the roadside unit corresponding to the second onboard unit for forwarding to the second onboard unit through the roadside unit corresponding to the second onboard unit.
  • the first onboard unit 10 is located in the communication range corresponding to the roadside unit A
  • the second onboard unit 20 is located in the communication range corresponding to the roadside unit B
  • the roadside units A and B respectively and the road condition.
  • the monitoring platform 40 communicates.
  • the problem of how to transmit safety information under the special scenario that the two vehicles are in different roadside units can be solved.
  • the collected forward road condition video image is sent to the roadside unit A in real time, and then uploaded to the road condition monitoring platform 40 by the roadside unit A. Then, the road condition monitoring platform 40 is sent to the roadside unit B, and finally sent to the second vehicle unit 20 by the roadside unit B, so that the rear vehicle driver can know the front vehicle condition of the preceding vehicle in real time.

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  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Business, Economics & Management (AREA)
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Abstract

A preceding vehicle road condition display system and method. The preceding vehicle road condition display system comprises: several first vehicle-mounted units (10), several second vehicle-mounted units (20), and several roadside units. The first vehicle-mounted units (10) are used for collecting in real-time safety information of a first vehicle via a vehicle-mounted terminal and transmitting the safety information to the roadside units, where the safety information at least comprises a video image of the road condition in front of the first vehicle; the roadside units are used for receiving the safety information transmitted by the first vehicle-mounted units (10) and forwarding the safety information to the second vehicle-mounted units (20); and the second vehicle-mounted units (20) are used for receiving the safety information transmitted by the first vehicle-mounted units (10) and forwarded by the roadside units and at least displaying the road condition video image on a second vehicle. The preceding vehicle road condition display system allows the viewing in a vehicle when following another vehicle of road condition information of the preceding vehicle, thus increasing traffic safety for the vehicles.

Description

前车路况显示系统及方法  Front car road condition display system and method
技术领域Technical field
本发明涉及行车安全技术领域，尤其涉及前车路况显示系统及方法。The invention relates to the technical field of driving safety, in particular to a front road condition display system and method.
背景技术Background technique
通常，车辆在行驶过程中通常都是跟车行驶，也即都处于同一行车道。因此，若前方车辆发生突发事故，则由于后车视线被前车阻挡而致使后车驾驶员不能清楚了解前方路况，进而导致意外事故的发生。Usually, the vehicles usually follow the car while driving, that is, they are all in the same lane. Therefore, if a sudden accident occurs in the preceding vehicle, the rear-viewer's line of sight is blocked by the preceding vehicle, so that the driver of the rear vehicle cannot clearly understand the road ahead, which may lead to an accident.
现有技术中，通过前车上的摄像头拍摄前车的前方路况并在前车的后面显示屏上同步显示出来，从而使得后车驾驶员能够实时了解被前方车辆所阻挡的路况信息，但此类方式需要在所有车辆上都安装大型的显示屏，因此该方式不仅成本过高，同时实现难度较大而不可取。In the prior art, the front road condition of the front vehicle is photographed by the camera on the front vehicle and displayed synchronously on the rear display screen of the front vehicle, so that the rear vehicle driver can know the road condition information blocked by the preceding vehicle in real time, but this The class approach requires a large display to be installed on all vehicles, so this approach is not only costly, but also difficult to achieve.
发明内容Summary of the invention
本发明的主要目的在于提供一种前车路况显示系统及方法，旨在解决如何采用更为简便且可操作性强的方式解决后车视线被前车阻挡的技术问题。The main object of the present invention is to provide a front-vehicle road condition display system and method, which aims to solve the technical problem of how to make the rear car line of sight blocked by the preceding vehicle in a more simple and operability manner.
为实现上述目的，本发明提供一种前车路况显示系统，所述前车路况显示系统包括：若干第一车载单元、若干第二车载单元与若干路边单元，所述第一车载单元安装在第一车辆上，所述第二车载单元安装在第二车辆上，所述第一车载单元、所述第二车载单元分别与所述路边单元进行无线通信；To achieve the above object, the present invention provides a front vehicle road condition display system, the front vehicle road condition display system comprising: a plurality of first vehicle-mounted units, a plurality of second vehicle-mounted units, and a plurality of roadside units, wherein the first vehicle-mounted unit is installed On the first vehicle, the second onboard unit is mounted on the second vehicle, and the first onboard unit and the second onboard unit respectively perform wireless communication with the roadside unit;
所述第一车载单元，用于通过车载终端实时采集所述第一车辆的安全信息，并将所述安全信息发送给所述路边单元，其中，所述车载终端至少包括车载摄像头，所述安全信息至少包括所述车载摄像头采集的所述第一车辆前方的路况视频图像；The first onboard unit is configured to collect safety information of the first vehicle in real time through an in-vehicle terminal, and send the safety information to the roadside unit, wherein the in-vehicle terminal includes at least an in-vehicle camera, The safety information includes at least a road condition video image of the first vehicle collected by the onboard camera;
所述路边单元，用于接收所述第一车载单元所发送的所述安全信息，并将所述安全信息转发给所述第二车载单元，其中，所述第二车辆位于所述第一车辆的后方；The roadside unit is configured to receive the security information sent by the first onboard unit, and forward the security information to the second onboard unit, where the second vehicle is located at the first The rear of the vehicle;
所述第二车载单元，用于接收所述路边单元转发的所述第一车载单元所发送的所述安全信息，并在所述第二车辆上至少显示所述路况视频图像。The second onboard unit is configured to receive the safety information sent by the first onboard unit forwarded by the roadside unit, and display at least the road condition video image on the second vehicle.
优选地，所述路边单元安装在车辆行驶道路的交通设备上或者道路侧的通信基站上。Preferably, the roadside unit is mounted on a traffic device of a road on which the vehicle travels or on a communication base station on the road side.
优选地，所述第一车载单元还用于：在所述第一车载单元位于所述路边单元所在的通信范围内时，将当前通过所述车载终端实时采集的所述安全信息以广播形式发送给所述路边单元；Preferably, the first onboard unit is further configured to: when the first onboard unit is located in a communication range in which the roadside unit is located, the security information currently collected by the in-vehicle terminal in real time is in a broadcast form. Sent to the roadside unit;
所述路边单元还用于：当检测到所述第一车载单元与所述第二车载单元同时位于所述通信范围内时，将接收到的所述第一车载单元所发送的所述安全信息以广播形式转发给所述第二车载单元；The roadside unit is further configured to: when detecting that the first onboard unit and the second onboard unit are located in the communication range at the same time, the received security sent by the first onboard unit The information is forwarded to the second onboard unit in a broadcast form;
所述第二车载单元还用于：在所述第二车载单元位于所述通信范围内时，接收所述路边单元以广播形式转发的所述第一车载单元所发送的所述安全信息，并在所述第二车辆上至少显示所述路况视频图像。The second onboard unit is further configured to: when the second onboard unit is located in the communication range, receive the safety information sent by the first onboard unit that is forwarded by the roadside unit in a broadcast form, And displaying at least the road condition video image on the second vehicle.
优选地，所述前车路况显示系统还包括：Preferably, the preceding vehicle road condition display system further comprises:
路况监控平台，用于接收所述路边单元上传的由所述第一车载单元所采集的所述安全信息，根据所述安全信息进行路况模拟，得到模拟结果，并根据所述模拟结果，向所述第一车载单元发送相应提醒信息，其中，所述安全信息至少还包括车辆的速度信息、GPS信息。a road condition monitoring platform, configured to receive the safety information collected by the first onboard unit and uploaded by the roadside unit, perform road condition simulation according to the safety information, obtain a simulation result, and according to the simulation result, The first onboard unit sends corresponding reminder information, wherein the security information further includes at least speed information of the vehicle and GPS information.
优选地，所述路况监控平台还用于：Preferably, the road condition monitoring platform is further configured to:
在所述第一车载单元与所述第二车载单元分别位于不同的路边单元所对应的通信范围内时，将所述第一车载单元所对应的路边单元上传的所述安全信息转发给所述第二车载单元所对应的路边单元，以供通过所述第二车载单元所对应的路边单元转发给所述第二车载单元。When the first onboard unit and the second onboard unit are respectively located in communication ranges corresponding to different roadside units, the safety information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to The roadside unit corresponding to the second onboard unit is forwarded to the second onboard unit by a roadside unit corresponding to the second onboard unit.
进一步地，为实现上述目的，本发明还提供一种前车路况显示方法，所述前车路况显示方法包括： Further, in order to achieve the above object, the present invention further provides a front road condition display method, and the front vehicle road condition display method includes:
第一车载单元通过车载终端实时采集第一车辆的安全信息，并将所述安全信息发送给路边单元，其中，所述车载终端至少包括车载摄像头，所述安全信息至少包括所述车载摄像头采集的所述第一车辆前方的路况视频图像；The first in-vehicle unit collects safety information of the first vehicle in real time through the in-vehicle terminal, and transmits the safety information to the roadside unit, wherein the in-vehicle terminal includes at least an in-vehicle camera, and the safety information includes at least the in-vehicle camera collection. a road condition video image in front of the first vehicle;
所述路边单元接收所述第一车载单元所发送的所述安全信息，并将所述安全信息转发给第二车载单元，其中，所述第一车载单元安装在第一车辆上，所述第二车载单元安装在第二车辆上，且所述第二车辆位于所述第一车辆的后方；Receiving, by the roadside unit, the safety information sent by the first onboard unit, and forwarding the safety information to a second onboard unit, wherein the first onboard unit is mounted on a first vehicle, a second onboard unit is mounted on the second vehicle, and the second vehicle is located behind the first vehicle;
所述第二车载单元接收所述路边单元转发的所述第一车载单元所发送的所述安全信息，并在所述第二车辆上至少显示所述路况视频图像。The second onboard unit receives the security information sent by the first onboard unit forwarded by the roadside unit, and displays at least the road condition video image on the second vehicle.
优选地，所述路边单元安装在车辆行驶道路的交通设备上或者道路侧的通信基站上。Preferably, the roadside unit is mounted on a traffic device of a road on which the vehicle travels or on a communication base station on the road side.
优选地，所述第一车载单元通过车载终端实时采集第一车辆的安全信息，并将所述安全信息发送给路边单元具体包括：Preferably, the first onboard unit collects the safety information of the first vehicle in real time by the vehicle-mounted terminal, and the sending the safety information to the roadside unit specifically includes:
在所述第一车载单元位于所述路边单元所在的通信范围内时，所述第一车载单元将当前通过所述车载终端实时采集的所述安全信息以广播形式发送给所述路边单元；When the first onboard unit is located in the communication range in which the roadside unit is located, the first onboard unit transmits the safety information currently collected by the in-vehicle terminal in real time to the roadside unit in a broadcast form. ;
所述路边单元接收所述第一车载单元所发送的所述安全信息，并将所述安全信息转发给第二车载单元具体包括：Receiving, by the roadside unit, the security information sent by the first onboard unit, and forwarding the security information to the second onboard unit specifically includes:
当检测到所述第一车载单元与所述第二车载单元同时位于所述通信范围内时，所述路边单元将接收到的所述第一车载单元所发送的所述安全信息以广播形式转发给所述第二车载单元；When it is detected that the first onboard unit and the second onboard unit are located in the communication range at the same time, the roadside unit transmits the received safety information by the first onboard unit in a broadcast form Forwarding to the second onboard unit;
所述第二车载单元接收所述路边单元转发的所述第一车载单元所发送的所述安全信息，并在所述第二车辆上至少显示所述路况视频图像具体包括：Receiving, by the second onboard unit, the security information sent by the first onboard unit that is forwarded by the roadside unit, and displaying the road condition video image on the second vehicle specifically includes:
在所述第二车载单元位于所述通信范围内时，所述第二车载单元接收所述路边单元以广播形式转发的所述第一车载单元所发送的所述安全信息，并在所述第二车辆上至少显示所述路况视频图像。When the second onboard unit is located in the communication range, the second onboard unit receives the security information sent by the first onboard unit forwarded by the roadside unit in a broadcast form, and in the At least the road condition video image is displayed on the second vehicle.
优选地，所述前车路况显示方法还包括：Preferably, the preceding vehicle road condition display method further includes:
所述路边单元将接收到的所述安全信息上传路况监控平台；The roadside unit uploads the received safety information to a road condition monitoring platform;
所述路况监控平台接收所述路边单元上传的由所述第一车载单元所采集的所述安全信息，根据所述安全信息进行路况模拟，得到模拟结果，并根据所述模拟结果，向所述第一车载单元发送相应提醒信息，其中，所述安全信息至少还包括车辆的速度信息、GPS信息。The road condition monitoring platform receives the safety information collected by the roadside unit and collected by the first vehicle-mounted unit, performs road condition simulation according to the safety information, obtains a simulation result, and according to the simulation result, The first onboard unit sends corresponding reminder information, wherein the safety information further includes at least speed information of the vehicle and GPS information.
优选地，所述前车路况显示方法还包括：Preferably, the preceding vehicle road condition display method further includes:
在所述第一车载单元与所述第二车载单元分别位于不同的路边单元所对应的通信范围内时，将所述第一车载单元所对应的路边单元上传的所述安全信息转发给所述第二车载单元所对应的路边单元，以供通过所述第二车载单元所对应的路边单元转发给所述第二车载单元。When the first onboard unit and the second onboard unit are respectively located in communication ranges corresponding to different roadside units, the safety information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to The roadside unit corresponding to the second onboard unit is forwarded to the second onboard unit by a roadside unit corresponding to the second onboard unit.
本发明中，通过车辆中的车载单元完成对车辆的安全信息采集，同时，再通过外界的路边单元，将前车的车载单元采集的安全信息转发给后车的车载单元，进而使得后车在跟车的过程中也能实时掌握前车的前方路况，进而提升车辆的行车安全。In the invention, the safety information collection of the vehicle is completed by the vehicle-mounted unit in the vehicle, and at the same time, the safety information collected by the vehicle-mounted unit of the preceding vehicle is forwarded to the vehicle-mounted unit of the following vehicle through the external roadside unit, thereby making the following vehicle In the process of following the car, the front road condition of the preceding vehicle can also be grasped in real time, thereby improving the driving safety of the vehicle.
附图说明DRAWINGS
图1为本发明前车路况显示系统第一实施例的功能模块示意图；1 is a schematic diagram of functional modules of a first embodiment of a front vehicle road condition display system of the present invention;
图2为本发明前车路况显示系统一实施例的连接架构示意图；2 is a schematic diagram of a connection structure of an embodiment of a front vehicle road condition display system according to the present invention;
图3为本发明前车路况显示系统第二实施例的功能模块示意图；3 is a schematic diagram of functional modules of a second embodiment of a front road condition display system of the present invention;
图4为本发明前车路况显示系统另一实施例的连接架构示意图；4 is a schematic diagram of a connection architecture of another embodiment of a preceding vehicle road condition display system according to the present invention;
图5为本发明前车路况显示方法第一实施例的流程示意图；5 is a schematic flow chart of a first embodiment of a roadway display method according to the present invention;
图6为本发明前车路况显示方法第二实施例的流程示意图。6 is a schematic flow chart of a second embodiment of a method for displaying a road condition of a preceding vehicle according to the present invention.
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.
具体实施方式detailed description
应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
参照图1，图1为本发明前车路况显示系统第一实施例的功能模块示意图。Referring to FIG. 1, FIG. 1 is a schematic diagram of functional modules of a first embodiment of a front vehicle road condition display system according to the present invention.
为实现将前车的前方路况信息显示给后车，因此，本实施例中，前车路况显示系统包括：若干第一车载单元10、若干第二车载单元20与若干路边单元30。In this embodiment, the front vehicle road condition display system includes a plurality of first vehicle-mounted units 10, a plurality of second vehicle-mounted units 20, and a plurality of roadside units 30, in order to display the front road condition information of the preceding vehicle to the rear vehicle.
如图2所示，第一车载单元10安装在第一车辆上，第二车载单元20安装在第二车辆上，而第二车辆位于第一车辆的后方。同时，第一车载单元10、第二车载单元20分别与路边单元30进行无线通信，比如采用微波通信方式进行数据传输。As shown in FIG. 2, the first onboard unit 10 is mounted on the first vehicle, the second onboard unit 20 is mounted on the second vehicle, and the second vehicle is located behind the first vehicle. At the same time, the first onboard unit 10 and the second onboard unit 20 perform wireless communication with the roadside unit 30, for example, using microwave communication.
本实施例中，具体由第一车载单元10通过车载终端实时采集第一车辆的安全信息，并将安全信息发送给路边单元，其中，车载终端至少包括车载摄像头，安全信息至少包括车载摄像头采集的第一车辆前方的路况视频图像；In this embodiment, the first vehicle-mounted unit 10 collects the safety information of the first vehicle in real time through the vehicle-mounted terminal, and transmits the safety information to the roadside unit. The vehicle-mounted terminal includes at least the vehicle-mounted camera, and the safety information includes at least the vehicle-mounted camera. Video image of the road ahead of the first vehicle;
其中，车辆上的车载终端除了车载摄像头，还可以包括各种传感终端，比如胎压传感器、GPS传感器等，因此，对应的安全信息除了车载摄像头采集的车辆前方的路况视频图像之外，还可以包括通过胎压传感器采集的车辆胎压、通过GPS传感器采集的车辆实时地理位置等。The vehicle-mounted terminal on the vehicle may include various sensing terminals, such as a tire pressure sensor, a GPS sensor, etc., in addition to the vehicle-mounted camera. Therefore, the corresponding safety information is in addition to the road condition video image of the vehicle in front of the vehicle captured by the vehicle camera. It may include vehicle tire pressure collected by the tire pressure sensor, real-time geographic location of the vehicle collected by the GPS sensor, and the like.
本实施例中，路边单元30接收第一车载单元10所发送的安全信息，并将安全信息转发给第二车载单元20，而第二车载单元20则接收路边单元30转发的第一车载单元10所发送的安全信息，并在第二车辆上至少显示路况视频图像，比如在车辆的中控屏幕或内后视镜上显示路况视频图像等。In this embodiment, the roadside unit 30 receives the security information sent by the first onboard unit 10, and forwards the security information to the second onboard unit 20, and the second onboard unit 20 receives the first onboard unit forwarded by the roadside unit 30. The safety information transmitted by the unit 10 and at least the road condition video image is displayed on the second vehicle, such as displaying a road condition video image on the central control screen or the interior rear view mirror of the vehicle.
随着智能交通的发展，车辆以及交通设备都会变得越来越智能化，比如车辆会集成有更多的智能终端，而交通设备也会集成有通信功能，从而可实现车辆与交通设备之间的通信，因此，可选的，路边单元30可安装在车辆行驶道路的交通设备上或者道路侧的通信基站上，比如集成在交通路灯上、交通测速设备上、交通拍照设备上等且主要布置在行车危险多发地段。With the development of intelligent transportation, vehicles and transportation equipment will become more and more intelligent. For example, vehicles will integrate more intelligent terminals, and transportation equipment will also integrate communication functions, thus enabling between vehicles and transportation equipment. The communication, therefore, optional, the roadside unit 30 can be installed on the traffic device of the road on which the vehicle travels or on the communication base station on the road side, such as integrated on traffic lights, traffic speed measuring devices, traffic photographing devices, etc. and mainly Arranged in dangerous locations with driving.
本实施例中优选路边单元30为固定设置，因此，当车辆经过路边单元30时，一方面将自身采集的安全信息上传给路边单元30，从而再通过路边单元30转发给后面的车辆，而另一方面则接收路边单元30所下发的由前面车辆采集的安全信息，从而间接实现了车辆与车辆之间的数据传输，进而使得后方车辆也能实时了解前车前方的路况信息。In this embodiment, the roadside unit 30 is preferably fixed. Therefore, when the vehicle passes the roadside unit 30, the safety information collected by itself is uploaded to the roadside unit 30, and then forwarded to the rear by the roadside unit 30. The vehicle, on the other hand, receives the safety information collected by the roadside unit 30 and is collected by the preceding vehicle, thereby indirectly realizing the data transmission between the vehicle and the vehicle, so that the rear vehicle can also know the road condition in front of the preceding vehicle in real time. information.
此外，还需要说明的是，对于道路上行驶的车辆来说，该车辆是前车还是后车具体根据当前所处环境而定，也即前车与后车实质为一种相对概念，例如，道路上行驶有A、B、C三辆车，A在B的前方、B在C的前方，因此，对于A、B来说，A是前车、B是后车；而对于B、C来说，则B是前车、C是后车。因此，对于A、B来说，B车辆上安装的车载单元具有第二车载单元的功能，而对于B、C来说，B车辆上安装的车载单元具有第一车载单元的功能。In addition, it should be noted that, for a vehicle traveling on a road, whether the vehicle is a front vehicle or a rear vehicle is specifically determined according to the current environment, that is, the front vehicle and the rear vehicle are essentially a relative concept, for example, There are three cars A, B and C on the road. A is in front of B and B is in front of C. Therefore, for A and B, A is the front car and B is the rear car. For B and C. Say, then B is the front car and C is the rear car. Therefore, for A and B, the onboard unit mounted on the B vehicle has the function of the second onboard unit, and for B and C, the onboard unit mounted on the B vehicle has the function of the first onboard unit.
本实施例中，通过车辆中的车载单元完成对车辆的安全信息采集，同时，再通过外界的路边单元，将前车的车载单元采集的安全信息转发给后车的车载单元，进而使得后车在跟车的过程中也能实时掌握前车的前方路况，进而提升车辆的行车安全。In this embodiment, the safety information collection of the vehicle is completed by the vehicle-mounted unit in the vehicle, and at the same time, the safety information collected by the vehicle-mounted unit of the preceding vehicle is forwarded to the vehicle-mounted unit of the following vehicle through the external roadside unit, thereby In the process of following the car, the car can also grasp the road ahead in front of the car in order to improve the driving safety of the vehicle.
进一步可选的，在本发明前车路况显示系统一优选实施例中，鉴于车辆行驶环境复杂，比如车速过快、天气恶劣等因素影响，因此，第一车载单元10、第二车载单元20与路边单元30之间优选采用广播形式进行通信。Further, in a preferred embodiment of the preceding vehicle road condition display system of the present invention, in view of the complicated driving environment of the vehicle, such as excessive speed and bad weather, the first onboard unit 10 and the second onboard unit 20 are The roadside units 30 preferably communicate in a broadcast form.
此外，通常车辆跟车行驶的过程中，根据行车速度的不同而对应不同的跟车距离，比如30km/h~100km/h之间的跟车距离大概在20m~80m之间，因此，驾驶员一般只需了解离本车最近的前车的前方路况，因此，为避免路边单元30将当前车辆前方的其他前方车辆的安全信息也转发给当前车辆，因此，可对应设置路边单元30的通信范围，比如以路边单元30为中心的±20m以内可以进行通信。In addition, in the process of driving the vehicle with the vehicle, depending on the driving speed, different following distances are required, for example, the following distance between 30km/h and 100km/h is about 20m~80m, therefore, the driver Generally, it is only necessary to know the road ahead of the front vehicle closest to the vehicle. Therefore, in order to prevent the roadside unit 30 from forwarding the safety information of other preceding vehicles in front of the current vehicle to the current vehicle, the roadside unit 30 can be correspondingly provided. The communication range, for example, within ±20 m centered on the roadside unit 30, enables communication.
当然，通过设置路边单元30的通信范围来限制车辆的数量可能并不是十分精确，比如在50m的距离内，既可以通行2辆车，也可能通行4辆车，因此，可选的，第一车载单元10先对采集的安全信息进行编码标记，然后再发送给路边单元30，进而路边单元30可根据编码标记来决定下发哪一个安全信息给当前车辆。比如，当前路边单元30的通信范围内行驶有A、B、C三辆车，A、B、C分别上传了编码标记为a1、b2、c3的安全信息，则路边单元30根据编码标记（具有接收的时间顺序），将a1下发给B，而将c3下发给C，将c3下发给后面进入路边单元30的通信范围的车辆。Of course, it may not be very accurate to limit the number of vehicles by setting the communication range of the roadside unit 30. For example, within a distance of 50 m, it is possible to pass either 2 vehicles or 4 vehicles. Therefore, optional An onboard unit 10 first encodes the collected security information and then sends it to the roadside unit 30, and the roadside unit 30 can determine which security information to deliver to the current vehicle based on the encoded flag. For example, in the communication range of the current roadside unit 30, there are three vehicles A, B, and C, and A, B, and C respectively upload security information coded as a1, b2, and c3, and the roadside unit 30 according to the coded mark. (Having the chronological order of reception), a1 is sent to B, and c3 is sent to C, and c3 is sent to the vehicle that enters the communication range of the roadside unit 30 later.
本实施例中，第一车载单元10具体用于：在第一车载单元10位于路边单元30所在的通信范围内时，将当前通过车载终端实时采集的安全信息以广播形式发送给路边单元30；而路边单元30具体用于：当检测到第一车载单元10与第二车载单元20同时位于路边单元30的通信范围内时，将接收到的第一车载单元10所发送的安全信息以广播形式转发给第二车载单元20；而第二车载单元20具体用于：在第二车载单元20位于路边单元30的通信范围内时，接收路边单元30以广播形式转发的第一车载单元10所发送的安全信息，并在第二车辆上至少显示路况视频图像。In this embodiment, the first onboard unit 10 is specifically configured to: when the first onboard unit 10 is located in the communication range where the roadside unit 30 is located, transmit the security information currently collected by the in-vehicle terminal in real time to the roadside unit. The roadside unit 30 is specifically configured to: when detecting that the first onboard unit 10 and the second onboard unit 20 are simultaneously located within the communication range of the roadside unit 30, the received safety of the first onboard unit 10 The information is forwarded to the second onboard unit 20 in a broadcast form; and the second onboard unit 20 is specifically configured to: when the second onboard unit 20 is located within the communication range of the roadside unit 30, receive the way that the wayside unit 30 forwards in a broadcast form The safety information transmitted by the onboard unit 10 and at least the road condition video image is displayed on the second vehicle.
本实施例中，采用广播方式进行数据传输，进而保证数据传输的稳定性。同时，通过控制路边单元的通信范围以减少非必要数据的下发，提高数据传输的准确性。In this embodiment, data transmission is performed by using a broadcast method, thereby ensuring stability of data transmission. At the same time, by controlling the communication range of the roadside unit to reduce the issuance of non-essential data, the accuracy of data transmission is improved.
参照图3，图3为本发明前车路况显示系统第二实施例的功能模块示意图。基于上述实施例，本实施例中，前车路况显示系统还包括：路况监控平台40，路况监控平台40与若干路边单元30进行通信，比如通过移动通信网络进行无线通信，或者通过有线连接进行有线通信等。Referring to FIG. 3, FIG. 3 is a schematic diagram of functional modules of a second embodiment of a front vehicle road condition display system according to the present invention. Based on the above embodiment, in the present embodiment, the preceding vehicle road condition display system further includes: a road condition monitoring platform 40, and the road condition monitoring platform 40 communicates with a plurality of roadside units 30, such as wireless communication through a mobile communication network, or through a wired connection. Wired communication, etc.
本实施例中，路况监控平台40接收路边单元30上传的由第一车载单元10所采集的安全信息，根据安全信息进行路况模拟，得到模拟结果，并根据模拟结果，向第一车载单元10发送相应提醒信息，其中，安全信息至少还包括车辆的速度信息、GPS信息。In this embodiment, the road condition monitoring platform 40 receives the safety information collected by the first onboard unit 10 uploaded by the roadside unit 30, performs road condition simulation according to the safety information, obtains a simulation result, and sends the simulation result to the first onboard unit 10 according to the simulation result. Sending corresponding reminding information, wherein the safety information further includes at least speed information of the vehicle and GPS information.
例如，路况监控平台40可以对某一路段内的所有车辆进行实时监控，具体根据接收到的由路边单元30上传的车辆安全信息，进行路况模拟，比如模拟各车辆的行驶速度、方向及实时位置变化等，同时判断当前路况模拟是否正常，比如各车辆的行驶状态是否正常、车辆是否会发生碰撞事故等，进而得到相应模拟结果，并根据模拟结果，向第一车载单元10发送相应提醒信息，比如提醒驾驶员当前超速、提醒驾驶员前方有车辆请勿超车等。For example, the road condition monitoring platform 40 can perform real-time monitoring on all vehicles in a certain road segment, and specifically simulate the road conditions according to the received vehicle safety information uploaded by the roadside unit 30, such as simulating the traveling speed, direction and real-time of each vehicle. At the same time, it is determined whether the current road condition simulation is normal, such as whether the driving state of each vehicle is normal, whether the vehicle will have a collision accident, etc., thereby obtaining a corresponding simulation result, and transmitting corresponding reminding information to the first onboard unit 10 according to the simulation result. For example, to remind the driver of the current speeding, to remind the driver that there is a vehicle in front of you, please do not overtake.
进一步可选的，在本发明前车路况显示系统一实施例中，路况监控平台40还用于：在第一车载单元10与第二车载单元20分别位于不同的路边单元所对应的通信范围内时，将第一车载单元10所对应的路边单元上传的安全信息转发给第二车载单元20所对应的路边单元，以供通过第二车载单元20所对应的路边单元转发给第二车载单元20。Further, in an embodiment of the preceding road condition display system of the present invention, the road condition monitoring platform 40 is further configured to: the communication range corresponding to the different roadside units of the first onboard unit 10 and the second onboard unit 20 respectively The security information uploaded by the roadside unit corresponding to the first onboard unit 10 is forwarded to the roadside unit corresponding to the second onboard unit 20 for forwarding to the roadside unit corresponding to the second onboard unit 20 Two onboard units 20.
如图4所示，第一车载单元10位于路边单元A所对应的通信范围内，而第二车载单元20位于路边单元B所对应的通信范围内，路边单元A、B分别与路况监控平台40进行通信。本实施例中可以解决前后两辆车分别处于不同的路边单元这一特殊场景下如何进行安全信息传输的问题。As shown in FIG. 4, the first onboard unit 10 is located in the communication range corresponding to the roadside unit A, and the second onboard unit 20 is located in the communication range corresponding to the roadside unit B, and the roadside units A and B respectively and the road condition. The monitoring platform 40 communicates. In this embodiment, the problem of how to transmit safety information under the special scenario that the two vehicles are in different roadside units can be solved.
例如，第一车载单元10在路边单元A所对应的通信范围内行驶时，实时将采集的前方路况视频图像发送给路边单元A，然后再由路边单元A上传到路况监控平台40，然后再由路况监控平台40下发给路边单元B，最后再由路边单元B发送给第二车载单元20，进而使得后车驾驶员能够实时了解前车的前方车况。For example, when the first onboard unit 10 travels within the communication range corresponding to the roadside unit A, the collected forward road condition video image is sent to the roadside unit A in real time, and then uploaded to the road condition monitoring platform 40 by the roadside unit A. Then, the road condition monitoring platform 40 is sent to the roadside unit B, and finally sent to the second vehicle unit 20 by the roadside unit B, so that the rear vehicle driver can know the front vehicle condition of the preceding vehicle in real time.
参照图5，图5为本发明前车路况显示方法第一实施例的流程示意图。本实施例中，前车路况显示方法包括： Referring to FIG. 5, FIG. 5 is a schematic flow chart of a first embodiment of a roadway display method according to the present invention. In this embodiment, the front road condition display method includes:
步骤S110，第一车载单元通过车载终端实时采集第一车辆的安全信息，并将安全信息发送给路边单元，其中，车载终端至少包括车载摄像头，安全信息至少包括车载摄像头采集的第一车辆前方的路况视频图像；Step S110: The first vehicle-mounted unit collects safety information of the first vehicle in real time through the vehicle-mounted terminal, and transmits the safety information to the roadside unit, wherein the vehicle-mounted terminal includes at least the vehicle-mounted camera, and the safety information includes at least the front of the first vehicle collected by the vehicle-mounted camera. Road video image;
步骤S120，路边单元接收第一车载单元所发送的安全信息，并将安全信息转发给第二车载单元，其中，第一车载单元安装在第一车辆上，第二车载单元安装在第二车辆上，且第二车辆位于第一车辆的后方；Step S120, the roadside unit receives the safety information sent by the first onboard unit, and forwards the safety information to the second onboard unit, wherein the first onboard unit is mounted on the first vehicle, and the second onboard unit is mounted on the second vehicle. Upper, and the second vehicle is located behind the first vehicle;
步骤S130，第二车载单元接收路边单元转发的第一车载单元所发送的安全信息，并在第二车辆上至少显示路况视频图像。Step S130, the second onboard unit receives the safety information transmitted by the first onboard unit forwarded by the roadside unit, and displays at least the road condition video image on the second vehicle.
本实施例中，具体由第一车载单元10通过车载终端实时采集第一车辆的安全信息，并将安全信息发送给路边单元，其中，车载终端至少包括车载摄像头，安全信息至少包括车载摄像头采集的第一车辆前方的路况视频图像；In this embodiment, the first vehicle-mounted unit 10 collects the safety information of the first vehicle in real time through the vehicle-mounted terminal, and transmits the safety information to the roadside unit. The vehicle-mounted terminal includes at least the vehicle-mounted camera, and the safety information includes at least the vehicle-mounted camera. Video image of the road ahead of the first vehicle;
其中，车辆上的车载终端除了车载摄像头，还可以包括各种传感终端，比如胎压传感器、GPS传感器等，因此，对应的安全信息除了车载摄像头采集的车辆前方的路况视频图像之外，还可以包括通过胎压传感器采集的车辆胎压、通过GPS传感器采集的车辆实时地理位置等。The vehicle-mounted terminal on the vehicle may include various sensing terminals, such as a tire pressure sensor, a GPS sensor, etc., in addition to the vehicle-mounted camera. Therefore, the corresponding safety information is in addition to the road condition video image of the vehicle in front of the vehicle captured by the vehicle camera. It may include vehicle tire pressure collected by the tire pressure sensor, real-time geographic location of the vehicle collected by the GPS sensor, and the like.
本实施例中，路边单元30接收第一车载单元10所发送的安全信息，并将安全信息转发给第二车载单元20，而第二车载单元20则接收路边单元30转发的第一车载单元10所发送的安全信息，并在第二车辆上至少显示路况视频图像，比如在车辆的中控屏幕或内后视镜上显示路况视频图像等。In this embodiment, the roadside unit 30 receives the security information sent by the first onboard unit 10, and forwards the security information to the second onboard unit 20, and the second onboard unit 20 receives the first onboard unit forwarded by the roadside unit 30. The safety information transmitted by the unit 10 and at least the road condition video image is displayed on the second vehicle, such as displaying a road condition video image on the central control screen or the interior rear view mirror of the vehicle.
随着智能交通的发展，车辆以及交通设备都会变得越来越智能化，比如车辆会集成有更多的智能终端，而交通设备也会集成有通信功能，从而可实现车辆与交通设备之间的通信，因此，可选的，路边单元30可安装在车辆行驶道路的交通设备上或者道路侧的通信基站上，比如集成在交通路灯上、交通测速设备上、交通拍照设备上等且主要布置在行车危险多发地段。With the development of intelligent transportation, vehicles and transportation equipment will become more and more intelligent. For example, vehicles will integrate more intelligent terminals, and transportation equipment will also integrate communication functions, thus enabling between vehicles and transportation equipment. The communication, therefore, optional, the roadside unit 30 can be installed on the traffic device of the road on which the vehicle travels or on the communication base station on the road side, such as integrated on traffic lights, traffic speed measuring devices, traffic photographing devices, etc. and mainly Arranged in dangerous locations with driving.
本实施例中优选路边单元30为固定设置，因此，当车辆经过路边单元30时，一方面将自身采集的安全信息上传给路边单元30，从而再通过路边单元30转发给后面的车辆，而另一方面则接收路边单元30所下发的由前面车辆采集的安全信息，从而间接实现了车辆与车辆之间的数据传输，进而使得后方车辆也能实时了解前车前方的路况信息。In this embodiment, the roadside unit 30 is preferably fixed. Therefore, when the vehicle passes the roadside unit 30, the safety information collected by itself is uploaded to the roadside unit 30, and then forwarded to the rear by the roadside unit 30. The vehicle, on the other hand, receives the safety information collected by the roadside unit 30 and is collected by the preceding vehicle, thereby indirectly realizing the data transmission between the vehicle and the vehicle, so that the rear vehicle can also know the road condition in front of the preceding vehicle in real time. information.
此外，还需要说明的是，对于道路上行驶的车辆来说，该车辆是前车还是后车具体根据当前所处环境而定，也即前车与后车实质为一种相对概念，例如，道路上行驶有A、B、C三辆车，A在B的前方、B在C的前方，因此，对于A、B来说，A是前车、B是后车；而对于B、C来说，则B是前车、C是后车。因此，对于A、B来说，B车辆上安装的车载单元具有第二车载单元的功能，而对于B、C来说，B车辆上安装的车载单元具有第一车载单元的功能。In addition, it should be noted that, for a vehicle traveling on a road, whether the vehicle is a front vehicle or a rear vehicle is specifically determined according to the current environment, that is, the front vehicle and the rear vehicle are essentially a relative concept, for example, There are three cars A, B and C on the road. A is in front of B and B is in front of C. Therefore, for A and B, A is the front car and B is the rear car. For B and C. Say, then B is the front car and C is the rear car. Therefore, for A and B, the onboard unit mounted on the B vehicle has the function of the second onboard unit, and for B and C, the onboard unit mounted on the B vehicle has the function of the first onboard unit.
本实施例中，通过车辆中的车载单元完成对车辆的安全信息采集，同时，再通过外界的路边单元，将前车的车载单元采集的安全信息转发给后车的车载单元，进而使得后车在跟车的过程中也能实时掌握前车的前方路况，进而提升车辆的行车安全。In this embodiment, the safety information collection of the vehicle is completed by the vehicle-mounted unit in the vehicle, and at the same time, the safety information collected by the vehicle-mounted unit of the preceding vehicle is forwarded to the vehicle-mounted unit of the following vehicle through the external roadside unit, thereby In the process of following the car, the car can also grasp the road ahead in front of the car in order to improve the driving safety of the vehicle.
进一步可选的，在本发明路况显示方法一实施例中，上述步骤S110具体包括：在第一车载单元位于路边单元所在的通信范围内时，第一车载单元将当前通过车载终端实时采集的安全信息以广播形式发送给路边单元；Further, in an embodiment of the road condition display method of the present invention, the step S110 specifically includes: when the first onboard unit is located in the communication range where the roadside unit is located, the first onboard unit collects the current onboard vehicle through the vehicle. The safety information is sent to the roadside unit in broadcast form;
上述步骤S120具体包括：当检测到第二车载单元位于通信范围内时，路边单元将接收到的第一车载单元所发送的安全信息以广播形式转发给第二车载单元；The step S120 specifically includes: when detecting that the second onboard unit is located in the communication range, the roadside unit forwards the received safety information sent by the first onboard unit to the second onboard unit in a broadcast form;
上述步骤S130具体包括：在第二车载单元位于通信范围内时，第二车载单元接收路边单元以广播形式转发的第一车载单元所发送的安全信息，并在第二车辆上至少显示路况视频图像。The foregoing step S130 specifically includes: when the second onboard unit is located in the communication range, the second onboard unit receives the safety information sent by the first onboard unit forwarded by the roadside unit in a broadcast form, and displays at least the road condition video on the second vehicle. image.
鉴于车辆行驶环境复杂，比如车速过快、天气恶劣等因素影响，因此，第一车载单元10、第二车载单元20与路边单元30之间优选采用广播形式进行通信。In view of the complicated driving environment of the vehicle, such as excessive speed and bad weather, the first in-vehicle unit 10, the second in-vehicle unit 20 and the roadside unit 30 preferably communicate in a broadcast form.
此外，通常车辆跟车行驶的过程中，根据行车速度的不同而对应不同的跟车距离，比如30km/h~100km/h之间的跟车距离大概在20m~80m之间，因此，驾驶员一般只需了解离本车最近的前车的前方路况，因此，为避免路边单元30将当前车辆前方的其他前方车辆的安全信息也转发给当前车辆，因此，可对应设置路边单元30的通信范围，比如以路边单元30为中心的±20m以内可以进行通信。In addition, in the process of driving the vehicle with the vehicle, depending on the driving speed, different following distances are required, for example, the following distance between 30km/h and 100km/h is about 20m~80m, therefore, the driver Generally, it is only necessary to know the road ahead of the front vehicle closest to the vehicle. Therefore, in order to prevent the roadside unit 30 from forwarding the safety information of other preceding vehicles in front of the current vehicle to the current vehicle, the roadside unit 30 can be correspondingly provided. The communication range, for example, within ±20 m centered on the roadside unit 30, enables communication.
当然，通过设置路边单元30的通信范围来限制车辆的数量可能并不是十分精确，比如在50m的距离内，既可以通行2辆车，也可能通行4辆车，因此，可选的，第一车载单元10先对采集的安全信息进行编码标记，然后再发送给路边单元30，进而路边单元30可根据编码标记来决定下发哪一个安全信息给当前车辆。比如，当前路边单元30的通信范围内行驶有A、B、C三辆车，A、B、C分别上传了编码标记为a1、b2、c3的安全信息，则路边单元30根据编码标记（具有接收的时间顺序），将a1下发给B，而将c3下发给C，将c3下发给后面进入路边单元30的通信范围的车辆。Of course, it may not be very accurate to limit the number of vehicles by setting the communication range of the roadside unit 30. For example, within a distance of 50 m, it is possible to pass either 2 vehicles or 4 vehicles. Therefore, optional An onboard unit 10 first encodes the collected security information and then sends it to the roadside unit 30, and the roadside unit 30 can determine which security information to deliver to the current vehicle based on the encoded flag. For example, in the communication range of the current roadside unit 30, there are three vehicles A, B, and C, and A, B, and C respectively upload security information coded as a1, b2, and c3, and the roadside unit 30 according to the coded mark. (Having the chronological order of reception), a1 is sent to B, and c3 is sent to C, and c3 is sent to the vehicle that enters the communication range of the roadside unit 30 later.
本实施例中，第一车载单元10在第一车载单元10位于路边单元30所在的通信范围内时，将当前通过车载终端实时采集的安全信息以广播形式发送给路边单元30；而路边单元30当检测到第一车载单元10与第二车载单元20同时位于路边单元30的通信范围内时，将接收到的第一车载单元10所发送的安全信息以广播形式转发给第二车载单元20；而第二车载单元20在第二车载单元20位于路边单元30的通信范围内时，接收路边单元30以广播形式转发的第一车载单元10所发送的安全信息，并在第二车辆上至少显示路况视频图像。In this embodiment, when the first in-vehicle unit 10 is located in the communication range where the roadside unit 30 is located, the first in-vehicle unit 10 transmits the security information currently collected by the in-vehicle terminal in real time to the roadside unit 30; When detecting that the first onboard unit 10 and the second onboard unit 20 are simultaneously located within the communication range of the roadside unit 30, the edge unit 30 forwards the received security information transmitted by the first onboard unit 10 to the second in broadcast form. The onboard unit 20; while the second onboard unit 20 receives the safety information transmitted by the first onboard unit 10 in the form of a broadcast when the second onboard unit 20 is located within the communication range of the roadside unit 30, and At least the road condition video image is displayed on the second vehicle.
本实施例中，采用广播方式进行数据传输，进而保证数据传输的稳定性。同时，通过控制路边单元的通信范围以减少非必要数据的下发，提高数据传输的准确性。In this embodiment, data transmission is performed by using a broadcast method, thereby ensuring stability of data transmission. At the same time, by controlling the communication range of the roadside unit to reduce the issuance of non-essential data, the accuracy of data transmission is improved.
参照图6，图6为本发明前车路况显示方法第二实施例的流程示意图。基于上述方法第一实施例，本实施例中，前车路况显示方法还包括：Referring to FIG. 6, FIG. 6 is a schematic flow chart of a second embodiment of a roadway display method according to the present invention. Based on the first embodiment of the foregoing method, in the embodiment, the front road condition display method further includes:
步骤S210，路边单元将接收到的安全信息上传路况监控平台；Step S210, the roadside unit uploads the received safety information to the road condition monitoring platform;
步骤S220，路况监控平台接收路边单元上传的由第一车载单元所采集的安全信息，根据安全信息进行路况模拟，得到模拟结果，并根据模拟结果，向第一车载单元发送相应提醒信息，其中，安全信息至少还包括车辆的速度信息、GPS信息。Step S220: The road condition monitoring platform receives the safety information collected by the first vehicle unit uploaded by the roadside unit, performs road condition simulation according to the safety information, obtains a simulation result, and sends corresponding reminding information to the first vehicle unit according to the simulation result, wherein The safety information also includes at least the speed information of the vehicle and the GPS information.
本实施例中，路况监控平台40接收路边单元30上传的由第一车载单元10所采集的安全信息，根据安全信息进行路况模拟，得到模拟结果，并根据模拟结果，向第一车载单元10发送相应提醒信息，其中，安全信息至少还包括车辆的速度信息、GPS信息。In this embodiment, the road condition monitoring platform 40 receives the safety information collected by the first onboard unit 10 uploaded by the roadside unit 30, performs road condition simulation according to the safety information, obtains a simulation result, and sends the simulation result to the first onboard unit 10 according to the simulation result. Sending corresponding reminding information, wherein the safety information further includes at least speed information of the vehicle and GPS information.
例如，路况监控平台40可以对某一路段内的所有车辆进行实时监控，具体根据接收到的由路边单元30上传的车辆安全信息，进行路况模拟，比如模拟各车辆的行驶速度、方向及实时位置变化等，同时判断当前路况模拟是否正常，比如各车辆的行驶状态是否正常、车辆是否会发生碰撞事故等，进而得到相应模拟结果，并根据模拟结果，向第一车载单元10发送相应提醒信息，比如提醒驾驶员当前超速、提醒驾驶员前方有车辆请勿超车等。For example, the road condition monitoring platform 40 can perform real-time monitoring on all vehicles in a certain road segment, and specifically simulate the road conditions according to the received vehicle safety information uploaded by the roadside unit 30, such as simulating the traveling speed, direction and real-time of each vehicle. At the same time, it is determined whether the current road condition simulation is normal, such as whether the driving state of each vehicle is normal, whether the vehicle will have a collision accident, etc., thereby obtaining a corresponding simulation result, and transmitting corresponding reminding information to the first onboard unit 10 according to the simulation result. For example, to remind the driver of the current speeding, to remind the driver that there is a vehicle in front of you, please do not overtake.
进一步可选的，在本发明前车路况显示方法一实施例中，前车路况显示方法还包括：在第一车载单元与第二车载单元分别位于不同的路边单元所对应的通信范围内时，将第一车载单元所对应的路边单元上传的安全信息转发给第二车载单元所对应的路边单元，以供通过第二车载单元所对应的路边单元转发给第二车载单元。Further, in an embodiment of the present invention, the front vehicle road condition display method further includes: when the first vehicle unit and the second vehicle unit are respectively located in communication ranges corresponding to different roadside units The security information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to the roadside unit corresponding to the second onboard unit for forwarding to the second onboard unit through the roadside unit corresponding to the second onboard unit.
如图4所示，第一车载单元10位于路边单元A所对应的通信范围内，而第二车载单元20位于路边单元B所对应的通信范围内，路边单元A、B分别与路况监控平台40进行通信。本实施例中可以解决前后两辆车分别处于不同的路边单元这一特殊场景下如何进行安全信息传输的问题。As shown in FIG. 4, the first onboard unit 10 is located in the communication range corresponding to the roadside unit A, and the second onboard unit 20 is located in the communication range corresponding to the roadside unit B, and the roadside units A and B respectively and the road condition. The monitoring platform 40 communicates. In this embodiment, the problem of how to transmit safety information under the special scenario that the two vehicles are in different roadside units can be solved.
例如，第一车载单元10在路边单元A所对应的通信范围内行驶时，实时将采集的前方路况视频图像发送给路边单元A，然后再由路边单元A上传到路况监控平台40，然后再由路况监控平台40下发给路边单元B，最后再由路边单元B发送给第二车载单元20，进而使得后车驾驶员能够实时了解前车的前方车况。For example, when the first onboard unit 10 travels within the communication range corresponding to the roadside unit A, the collected forward road condition video image is sent to the roadside unit A in real time, and then uploaded to the road condition monitoring platform 40 by the roadside unit A. Then, the road condition monitoring platform 40 is sent to the roadside unit B, and finally sent to the second vehicle unit 20 by the roadside unit B, so that the rear vehicle driver can know the front vehicle condition of the preceding vehicle in real time.
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Claims (18)

  1. 一种前车路况显示系统，其特征在于，所述前车路况显示系统包括：若干第一车载单元、若干第二车载单元与若干路边单元，所述第一车载单元安装在第一车辆上，所述第二车载单元安装在第二车辆上，所述第一车载单元、所述第二车载单元分别与所述路边单元进行无线通信； A front vehicle road condition display system, wherein the front vehicle road condition display system comprises: a plurality of first vehicle-mounted units, a plurality of second vehicle-mounted units and a plurality of roadside units, wherein the first vehicle-mounted unit is mounted on the first vehicle The second onboard unit is mounted on the second vehicle, and the first onboard unit and the second onboard unit respectively perform wireless communication with the roadside unit;
    所述第一车载单元，用于通过车载终端实时采集所述第一车辆的安全信息，并将所述安全信息发送给所述路边单元，其中，所述车载终端至少包括车载摄像头，所述安全信息至少包括所述车载摄像头采集的所述第一车辆前方的路况视频图像；The first onboard unit is configured to collect safety information of the first vehicle in real time through an in-vehicle terminal, and send the safety information to the roadside unit, wherein the in-vehicle terminal includes at least an in-vehicle camera, The safety information includes at least a road condition video image of the first vehicle collected by the onboard camera;
    所述路边单元，用于接收所述第一车载单元所发送的所述安全信息，并将所述安全信息转发给所述第二车载单元，其中，所述第二车辆位于所述第一车辆的后方；The roadside unit is configured to receive the security information sent by the first onboard unit, and forward the security information to the second onboard unit, where the second vehicle is located at the first The rear of the vehicle;
    所述第二车载单元，用于接收所述路边单元转发的所述第一车载单元所发送的所述安全信息，并在所述第二车辆上至少显示所述路况视频图像。The second onboard unit is configured to receive the safety information sent by the first onboard unit forwarded by the roadside unit, and display at least the road condition video image on the second vehicle.
  2. 如权利要求1所述的前车路况显示系统，其特征在于，所述路边单元安装在车辆行驶道路的交通设备上或者道路侧的通信基站上。A preceding road condition display system according to claim 1, wherein said roadside unit is mounted on a traffic device on a road on which the vehicle travels or on a communication base station on the road side.
  3. 如权利要求2所述的前车路况显示系统，其特征在于，所述第一车载单元还用于：在所述第一车载单元位于所述路边单元所在的通信范围内时，将当前通过所述车载终端实时采集的所述安全信息以广播形式发送给所述路边单元；The preceding vehicle road condition display system according to claim 2, wherein the first onboard unit is further configured to: when the first onboard unit is located within a communication range in which the roadside unit is located, The security information collected by the in-vehicle terminal in real time is sent to the roadside unit in a broadcast form;
    所述路边单元还用于：当检测到所述第一车载单元与所述第二车载单元同时位于所述通信范围内时，将接收到的所述第一车载单元所发送的所述安全信息以广播形式转发给所述第二车载单元；The roadside unit is further configured to: when detecting that the first onboard unit and the second onboard unit are located in the communication range at the same time, the received security sent by the first onboard unit The information is forwarded to the second onboard unit in a broadcast form;
    所述第二车载单元还用于：在所述第二车载单元位于所述通信范围内时，接收所述路边单元以广播形式转发的所述第一车载单元所发送的所述安全信息，并在所述第二车辆上至少显示所述路况视频图像。The second onboard unit is further configured to: when the second onboard unit is located in the communication range, receive the safety information sent by the first onboard unit that is forwarded by the roadside unit in a broadcast form, And displaying at least the road condition video image on the second vehicle.
  4. 如权利要求1所述的前车路况显示系统，其特征在于，所述前车路况显示系统还包括：The preceding vehicle road condition display system of claim 1 , wherein the front vehicle road condition display system further comprises:
    路况监控平台，用于接收所述路边单元上传的由所述第一车载单元所采集的所述安全信息，根据所述安全信息进行路况模拟，得到模拟结果，并根据所述模拟结果，向所述第一车载单元发送相应提醒信息，其中，所述安全信息至少还包括车辆的速度信息、GPS信息。a road condition monitoring platform, configured to receive the safety information collected by the first onboard unit and uploaded by the roadside unit, perform road condition simulation according to the safety information, obtain a simulation result, and according to the simulation result, The first onboard unit sends corresponding reminder information, wherein the security information further includes at least speed information of the vehicle and GPS information.
  5. 如权利要求2所述的前车路况显示系统，其特征在于，所述前车路况显示系统还包括：The front vehicle road condition display system of claim 2, wherein the front vehicle road condition display system further comprises:
    路况监控平台，用于接收所述路边单元上传的由所述第一车载单元所采集的所述安全信息，根据所述安全信息进行路况模拟，得到模拟结果，并根据所述模拟结果，向所述第一车载单元发送相应提醒信息，其中，所述安全信息至少还包括车辆的速度信息、GPS信息。a road condition monitoring platform, configured to receive the safety information collected by the first onboard unit and uploaded by the roadside unit, perform road condition simulation according to the safety information, obtain a simulation result, and according to the simulation result, The first onboard unit sends corresponding reminder information, wherein the security information further includes at least speed information of the vehicle and GPS information.
  6. 如权利要求3所述的前车路况显示系统，其特征在于，所述前车路况显示系统还包括：The preceding vehicle road condition display system according to claim 3, wherein the front vehicle road condition display system further comprises:
    路况监控平台，用于接收所述路边单元上传的由所述第一车载单元所采集的所述安全信息，根据所述安全信息进行路况模拟，得到模拟结果，并根据所述模拟结果，向所述第一车载单元发送相应提醒信息，其中，所述安全信息至少还包括车辆的速度信息、GPS信息。a road condition monitoring platform, configured to receive the safety information collected by the first onboard unit and uploaded by the roadside unit, perform road condition simulation according to the safety information, obtain a simulation result, and according to the simulation result, The first onboard unit sends corresponding reminder information, wherein the security information further includes at least speed information of the vehicle and GPS information.
  7. 如权利要求4所述的前车路况显示系统，其特征在于，所述路况监控平台还用于：The traffic condition display system of claim 4, wherein the road condition monitoring platform is further configured to:
    在所述第一车载单元与所述第二车载单元分别位于不同的路边单元所对应的通信范围内时，将所述第一车载单元所对应的路边单元上传的所述安全信息转发给所述第二车载单元所对应的路边单元，以供通过所述第二车载单元所对应的路边单元转发给所述第二车载单元。When the first onboard unit and the second onboard unit are respectively located in communication ranges corresponding to different roadside units, the safety information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to The roadside unit corresponding to the second onboard unit is forwarded to the second onboard unit by a roadside unit corresponding to the second onboard unit.
  8. 如权利要求5所述的前车路况显示系统，其特征在于，所述路况监控平台还用于：The traffic condition display system of claim 5, wherein the road condition monitoring platform is further configured to:
    在所述第一车载单元与所述第二车载单元分别位于不同的路边单元所对应的通信范围内时，将所述第一车载单元所对应的路边单元上传的所述安全信息转发给所述第二车载单元所对应的路边单元，以供通过所述第二车载单元所对应的路边单元转发给所述第二车载单元。When the first onboard unit and the second onboard unit are respectively located in communication ranges corresponding to different roadside units, the safety information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to The roadside unit corresponding to the second onboard unit is forwarded to the second onboard unit by a roadside unit corresponding to the second onboard unit.
  9. 如权利要求6所述的前车路况显示系统，其特征在于，所述路况监控平台还用于：The preceding vehicle road condition display system according to claim 6, wherein the road condition monitoring platform is further configured to:
    在所述第一车载单元与所述第二车载单元分别位于不同的路边单元所对应的通信范围内时，将所述第一车载单元所对应的路边单元上传的所述安全信息转发给所述第二车载单元所对应的路边单元，以供通过所述第二车载单元所对应的路边单元转发给所述第二车载单元。When the first onboard unit and the second onboard unit are respectively located in communication ranges corresponding to different roadside units, the safety information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to The roadside unit corresponding to the second onboard unit is forwarded to the second onboard unit by a roadside unit corresponding to the second onboard unit.
  10. 一种前车路况显示方法，其特征在于，所述前车路况显示方法包括： A front vehicle road condition display method, wherein the front vehicle road condition display method comprises:
    第一车载单元通过车载终端实时采集第一车辆的安全信息，并将所述安全信息发送给路边单元，其中，所述车载终端至少包括车载摄像头，所述安全信息至少包括所述车载摄像头采集的所述第一车辆前方的路况视频图像；The first in-vehicle unit collects safety information of the first vehicle in real time through the in-vehicle terminal, and transmits the safety information to the roadside unit, wherein the in-vehicle terminal includes at least an in-vehicle camera, and the safety information includes at least the in-vehicle camera collection. a road condition video image in front of the first vehicle;
    所述路边单元接收所述第一车载单元所发送的所述安全信息，并将所述安全信息转发给第二车载单元，其中，所述第一车载单元安装在第一车辆上，所述第二车载单元安装在第二车辆上，且所述第二车辆位于所述第一车辆的后方；Receiving, by the roadside unit, the safety information sent by the first onboard unit, and forwarding the safety information to a second onboard unit, wherein the first onboard unit is mounted on a first vehicle, a second onboard unit is mounted on the second vehicle, and the second vehicle is located behind the first vehicle;
    所述第二车载单元接收所述路边单元转发的所述第一车载单元所发送的所述安全信息，并在所述第二车辆上至少显示所述路况视频图像。The second onboard unit receives the security information sent by the first onboard unit forwarded by the roadside unit, and displays at least the road condition video image on the second vehicle.
  11. 如权利要求10所述的前车路况显示方法，其特征在于，所述路边单元安装在车辆行驶道路的交通设备上或者道路侧的通信基站上。The preceding road condition display method according to claim 10, wherein the roadside unit is mounted on a traffic device of a road on which the vehicle travels or a communication base station on the road side.
  12. 如权利要求11所述的前车路况显示方法，其特征在于，所述第一车载单元通过车载终端实时采集第一车辆的安全信息，并将所述安全信息发送给路边单元具体包括：The method of displaying the traffic condition of the preceding vehicle according to claim 11, wherein the first onboard unit collects the safety information of the first vehicle in real time through the vehicle-mounted terminal, and the transmitting the safety information to the roadside unit comprises:
    在所述第一车载单元位于所述路边单元所在的通信范围内时，所述第一车载单元将当前通过所述车载终端实时采集的所述安全信息以广播形式发送给所述路边单元；When the first onboard unit is located in the communication range in which the roadside unit is located, the first onboard unit transmits the safety information currently collected by the in-vehicle terminal in real time to the roadside unit in a broadcast form. ;
    所述路边单元接收所述第一车载单元所发送的所述安全信息，并将所述安全信息转发给第二车载单元具体包括：Receiving, by the roadside unit, the security information sent by the first onboard unit, and forwarding the security information to the second onboard unit specifically includes:
    当检测到所述第一车载单元与所述第二车载单元同时位于所述通信范围内时，所述路边单元将接收到的所述第一车载单元所发送的所述安全信息以广播形式转发给所述第二车载单元；When it is detected that the first onboard unit and the second onboard unit are located in the communication range at the same time, the roadside unit transmits the received safety information by the first onboard unit in a broadcast form Forwarding to the second onboard unit;
    所述第二车载单元接收所述路边单元转发的所述第一车载单元所发送的所述安全信息，并在所述第二车辆上至少显示所述路况视频图像具体包括：Receiving, by the second onboard unit, the security information sent by the first onboard unit that is forwarded by the roadside unit, and displaying the road condition video image on the second vehicle specifically includes:
    在所述第二车载单元位于所述通信范围内时，所述第二车载单元接收所述路边单元以广播形式转发的所述第一车载单元所发送的所述安全信息，并在所述第二车辆上至少显示所述路况视频图像。When the second onboard unit is located in the communication range, the second onboard unit receives the security information sent by the first onboard unit forwarded by the roadside unit in a broadcast form, and in the At least the road condition video image is displayed on the second vehicle.
  13. 如权利要求10所述的前车路况显示方法，其特征在于，所述前车路况显示方法还包括：The method of displaying a preceding road condition according to claim 10, wherein the method for displaying the preceding road condition further comprises:
    所述路边单元将接收到的所述安全信息上传路况监控平台；The roadside unit uploads the received safety information to a road condition monitoring platform;
    所述路况监控平台接收所述路边单元上传的由所述第一车载单元所采集的所述安全信息，根据所述安全信息进行路况模拟，得到模拟结果，并根据所述模拟结果，向所述第一车载单元发送相应提醒信息，其中，所述安全信息至少还包括车辆的速度信息、GPS信息。The road condition monitoring platform receives the safety information collected by the roadside unit and collected by the first vehicle-mounted unit, performs road condition simulation according to the safety information, obtains a simulation result, and according to the simulation result, The first onboard unit sends corresponding reminder information, wherein the safety information further includes at least speed information of the vehicle and GPS information.
  14. 如权利要求11所述的前车路况显示方法，其特征在于，所述前车路况显示方法还包括：The method of displaying a preceding road condition according to claim 11, wherein the method for displaying the preceding road condition further comprises:
    所述路边单元将接收到的所述安全信息上传路况监控平台；The roadside unit uploads the received safety information to a road condition monitoring platform;
    所述路况监控平台接收所述路边单元上传的由所述第一车载单元所采集的所述安全信息，根据所述安全信息进行路况模拟，得到模拟结果，并根据所述模拟结果，向所述第一车载单元发送相应提醒信息，其中，所述安全信息至少还包括车辆的速度信息、GPS信息。The road condition monitoring platform receives the safety information collected by the roadside unit and collected by the first vehicle-mounted unit, performs road condition simulation according to the safety information, obtains a simulation result, and according to the simulation result, The first onboard unit sends corresponding reminder information, wherein the safety information further includes at least speed information of the vehicle and GPS information.
  15. 如权利要求12所述的前车路况显示方法，其特征在于，所述前车路况显示方法还包括：The method of displaying the preceding road condition according to claim 12, wherein the method for displaying the preceding road condition further comprises:
    所述路边单元将接收到的所述安全信息上传路况监控平台；The roadside unit uploads the received safety information to a road condition monitoring platform;
    所述路况监控平台接收所述路边单元上传的由所述第一车载单元所采集的所述安全信息，根据所述安全信息进行路况模拟，得到模拟结果，并根据所述模拟结果，向所述第一车载单元发送相应提醒信息，其中，所述安全信息至少还包括车辆的速度信息、GPS信息。The road condition monitoring platform receives the safety information collected by the roadside unit and collected by the first vehicle-mounted unit, performs road condition simulation according to the safety information, obtains a simulation result, and according to the simulation result, The first onboard unit sends corresponding reminder information, wherein the safety information further includes at least speed information of the vehicle and GPS information.
  16. 如权利要求13所述的前车路况显示方法，其特征在于，所述前车路况显示方法还包括：The method of displaying a preceding road condition according to claim 13, wherein the method for displaying the preceding road condition further comprises:
    在所述第一车载单元与所述第二车载单元分别位于不同的路边单元所对应的通信范围内时，将所述第一车载单元所对应的路边单元上传的所述安全信息转发给所述第二车载单元所对应的路边单元，以供通过所述第二车载单元所对应的路边单元转发给所述第二车载单元。When the first onboard unit and the second onboard unit are respectively located in communication ranges corresponding to different roadside units, the safety information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to The roadside unit corresponding to the second onboard unit is forwarded to the second onboard unit by a roadside unit corresponding to the second onboard unit.
  17. 如权利要求14所述的前车路况显示方法，其特征在于，所述前车路况显示方法还包括：The method of displaying a front road condition according to claim 14, wherein the method for displaying the preceding road condition further comprises:
    在所述第一车载单元与所述第二车载单元分别位于不同的路边单元所对应的通信范围内时，将所述第一车载单元所对应的路边单元上传的所述安全信息转发给所述第二车载单元所对应的路边单元，以供通过所述第二车载单元所对应的路边单元转发给所述第二车载单元。When the first onboard unit and the second onboard unit are respectively located in communication ranges corresponding to different roadside units, the safety information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to The roadside unit corresponding to the second onboard unit is forwarded to the second onboard unit by a roadside unit corresponding to the second onboard unit.
  18. 如权利要求15所述的前车路况显示方法，其特征在于，所述前车路况显示方法还包括：The method of displaying a front road condition according to claim 15, wherein the method for displaying the preceding road condition further comprises:
    在所述第一车载单元与所述第二车载单元分别位于不同的路边单元所对应的通信范围内时，将所述第一车载单元所对应的路边单元上传的所述安全信息转发给所述第二车载单元所对应的路边单元，以供通过所述第二车载单元所对应的路边单元转发给所述第二车载单元。When the first onboard unit and the second onboard unit are respectively located in communication ranges corresponding to different roadside units, the safety information uploaded by the roadside unit corresponding to the first onboard unit is forwarded to The roadside unit corresponding to the second onboard unit is forwarded to the second onboard unit by a roadside unit corresponding to the second onboard unit.
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