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WO1999035628A1 - Systeme d'avertissement donnant des informations relatives a la circulation - Google Patents

Systeme d'avertissement donnant des informations relatives a la circulation Download PDF

Info

Publication number
WO1999035628A1
WO1999035628A1 PCT/US1998/027823 US9827823W WO9935628A1 WO 1999035628 A1 WO1999035628 A1 WO 1999035628A1 US 9827823 W US9827823 W US 9827823W WO 9935628 A1 WO9935628 A1 WO 9935628A1
Authority
WO
WIPO (PCT)
Prior art keywords
traffic information
warning system
traffic
information warning
transmitter
Prior art date
Application number
PCT/US1998/027823
Other languages
English (en)
Inventor
James R. Bazet
Jerry Kalov
Anthony Mirabelli
David C. Oliva
John Pohl
Jacqueline Zanfardino
Gerald M. Laures
Original Assignee
Cobra Electronics Corp.
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 Cobra Electronics Corp. filed Critical Cobra Electronics Corp.
Priority to AU22094/99A priority Critical patent/AU2209499A/en
Publication of WO1999035628A1 publication Critical patent/WO1999035628A1/fr

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
    • G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
    • G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
    • B60Q1/52—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating emergencies
    • 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
    • G08G1/09—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
    • G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
    • G08G1/096758—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where no selection takes place on the transmitted or the received information
    • 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
    • G08G1/096783—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 a roadside individual element
    • 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

Definitions

  • Applicant's invention relates to a transportation information system which warns, or otherwise advises, travelers of various traffic hazards and conditions in their particular vicinity.
  • each emergency vehicle has a transmitter and a receiver.
  • Each transmitter has an encoder which produces a signal having a duty cycle comprising a series of 15 kHz pulses for a period of approximately 0.5 sec, followed by a period of no pulses for approximately one second. This signal is transmitted at a modulated frequency of 150 MHz.
  • Each receiver has a detector which is deactivated during the transmission of the 15 kHz signals, so as not to detect transmission of its own signal.
  • U.S. Patent No. 4,794,394 discloses an emergency vehicle proximity warning system.
  • An emergency vehicle transmits a continuous series of pulses.
  • a second vehicle has a receiver which receives the pulses. Upon detection of the pulses, the receiver interrupts the connection between the radio and speaker of the second vehicle, and energizes lamps and/or sound-issuing devices within the second vehicle.
  • the traffic warning site comprises an emergency vehicle, a roadside hazard, or the like.
  • the system comprises a transmitter adapted for placement at the advisory site and a receiver adapted for placement with a receiving station.
  • the transmitter includes means for transmitting a first unmodulated carrier signal at a first frequency and means for transmitting a second unmodulated carrier signal at a second frequency.
  • the first and second frequencies define the traffic information.
  • the receiver includes means for detecting the first and second signals, means responsive to the detecting means for determining the traffic information and means responsive to the determining means for announcing the traffic information. It is contemplated that the announcing means includes a visual display, an audible, or both.
  • the receiver determines the traffic information by determining the magnitude of the frequency difference between the first and second frequencies. In another embodiment, the receiver determines the traffic information by determining the specific frequency locations of the first and second frequencies.
  • the transmitter can include means for selectively transmitting one of a plurality of second unmodulated carrier signals, to selective transmission of a plurality of traffic information messages.
  • the transmitter can be placed in a number of different locations to notify travelers of many different types of traffic information.
  • the traffic warning site comprises an emergency vehicle, a roadside hazard, or the like.
  • the system comprises a transmitter adapted for placement at the advisory site and a receiver adapted for placement with a receiving station.
  • the transmitter includes means for transmitting a first unmodulated carrier signal at a first frequency and means for transmitting a second unmodulated carrier signal at a second frequency.
  • the first and second frequencies define the traffic information.
  • the receiver includes means for detecting the first and second signals, means responsive to the detecting means for determining the traffic information and means responsive to the determining means for announcing the traffic information.
  • the announcing means includes a visual display, an audible, or both.
  • the receiver determines the traffic information by determining the magnitude of the frequency difference between the first and second frequencies.
  • the receiver determines the traffic information by determining the specific frequency locations of the first and second frequencies.
  • the transmitter can include means for selectively transmitting one of a plurality of second unmodulated carrier signals, to selective transmission of a plurality of traffic information messages.
  • the transmitter can be placed in a number of different locations to notify travelers of many different types of traffic information.
  • a transportation information warning system for con- veying traffic information from a traffic advisory site, such as an emergency vehicle 12 or a roadside hazard 14, to a vehicle 16 is illustrated in Figure 1.
  • the transportation information warning system 10 is generally described in U.S. Patent No. 5,497,148.
  • the system 10 comprises a transmitter 18 adapted for placement at the advisory site, such as inside the emergency vehicle 12 or alongside the roadside hazard 14.
  • the system 10 further comprises a receiver 20 adapted for placement inside the emergency vehicle 12.
  • the transmitter 18 includes a first oscillator 22 for transmitting a first unmodulated carrier signal s, at a first frequency and a second oscillator 24 for transmitting a second unmodulated carrier signal at a second frequency s 2 .
  • the first and second frequencies s nerve s 2 together define the traffic information, although the invention contemplates various methods for encoding the information, discussed below.
  • the receiver 20 detects the first and second signals and responds to the detected signals to determine the traffic information.
  • the receiver 20 then announces the traffic information.
  • the announcement may be via a visual display 21 , such as a conventional LCD display, an audible display 22, a vibrational response (not shown), or any combination of these. If an audible display, the message could be announced as a tone, which tone would have a pre-arranged and defined meaning for the traveler. Alternatively, the audible message could be a stored voice message, as is well known.
  • the first signal can be referred to as a reference sig- nal.
  • One such reference signal contemplated is 24.230 GHz., which is in the K- band.
  • the second signal would be one of various other signal frequencies, depending upon the particular traffic information. It is contemplated that if the hazard is an emergency vehicle, the second signal frequency would be 24.11 GHz. It is further contemplated that if the hazard is a roadside hazard, the second signal frequency would be 24.07 GHz. In the event the hazard is a railroad, the reference signal frequency is contemplated to be 24.19 GHz and the second signal frequency would be 24.1 1 GHz. It should be apparent that any particular frequency could be utilized without departing from the scope of the invention.
  • the receiver detects the magnitude of the frequency difference between the first and second frequencies.
  • the receiver could include scanning circuitry to scan across the frequencies of interest, and the receiver "looks" for two signals separated by a predetermined frequency difference.
  • the magnitude of the difference between the reference signal and the roadside hazard signal is 160 MHz.
  • the receiver detects two signals spaced by 160 MHz, it determines this to represent a roadside hazard, and alarms accordingly.
  • the difference can be determined by utilizing a receiver with a constant sweep rate, and measuring the time between the two frequency detections.
  • the receiver 20 looks for the presence of signals located at specific frequency locations. With the above example, the receiver 20 would specifically look for one signal at 24.230 GHz and another signal at 24.07
  • the receiver 20 could also be used to detect conventional police radar signals. However, because of its significant function to detect and warn of traffic hazards and the like, the receiver 20 ignores police radar signals in the event traffic hazard signals are detected.
  • a single receiver could operate to detect and distinguish any of the various signals, such that a single receiver could warn the operator of a vehicle of any of the traffic hazards, or of such other information as the situation warrants.
  • Transmitters 18 of the type described above can be placed at any number of traffic advisory sites. For instance, locomotives, bicycles, school buses, airplanes, snow removal equipment, and/or paint striping vehicles can be equipped with a transmitter 18 to signal a receiving station having a receiver 20 which is capable of distinguishing between the different traffic advisory sites.
  • the traffic advisory site could be located at a fixed location. For instance, transmitters 18 can be located at construction sites on solar powered sign boards. This type of arrangement could be used to warn motorists that construction workers are present.
  • Transmitters 18 can also be placed at school zones, such as mounted on school zone crossing signs, and activated upon activation of school zone crossing zone lights, to warn motorists that children are present. In marine applications, transmitters 18 could be placed at boat docks or in lighthouses to direct, guide, or warn marine vehicles having appropriate receivers.
  • the receiving station could be located at a fixed location.
  • a receiver 20 can be placed at a traffic light system.
  • the receiver 20 could trigger the traffic light system to change all the traffic lights an intersection to change to red, so traffic in all directions would stop.
  • an emergency vehicle equipped with a transmitter 18 could pass safely through the intersection as all traffic is stopped.
  • the receiving station being located at a fixed location is when the receiver 20 is placed in a home.
  • the receiver can be placed in the home to signal the arrival of a school bus, having an appropriate transmitter or the like.
  • the transportation information warning system may comprise a single unit having both a transmitter 18 and a receiver 20.
  • the transportation information warning system can be coupled with a citizens' band radio, a car stereo, or an electronic compass to provide a visual and/or audible alarm.
  • the transmitter 18 and the receiver 20 can be programmable. This would allow the user to change warning messages and/or remotely change the transmitted signal.
  • the transmitter 18 is located within a vehicle 30 which has a hazard notification control.
  • the hazard notification control is generally adapted to activate the vehicle's 30 hazard lights (i.e., emergency flashers) 32 when the vehicle 30 is in distress.
  • the transmitter 18 is electrically and/or mechanically connected to the hazard notification control so that when the control system is triggered, the transmitter 10 begins to emit the first and second signals Shiel S 2 .
  • Activation of the hazard lights 32 is normally accomplished through human intervention; however, it should be apparent that any particular method of activating the hazard notification control could be utilized without departing from the scope of the invention.
  • This device provides the driver with additional safety when he/she is in a potentially hazardous situation such as changing a tire on a busy street or being the victim of a traffic accident.
  • the transmitter 18 sends a warning signal that notifies other vehicles of the driver in distress.
  • This system can also be used to summon medical help or roadside assistance. This can be accomplished by having a receiving station located at a fixed location. For example, a receiver can be placed at a hospital, clinic, highway garage, or police station.
  • the transmitter 10 can be programmable to allow the user to change warning messages and/or remotely change the transmitted signal.
  • This device can be retrofit in a vehicle with an existing hazard notification control system.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Traffic Control Systems (AREA)

Abstract

Cette invention concerne un système (10) d'avertissement donnant des informations relatives à la circulation qui achemine des informations relatives à la circulation d'un site de circulation routière à une station réceptrice. Le site d'avertissement de la circulation comprend un véhicule d'urgence (12), une barrière (14) située en bordure de route ou autre. Le système comprend un émetteur (18) prévu pour être placé au niveau du site d'information et un récepteur (20) prévu pour être placé au niveau de la station réceptrice. L'émetteur est équipé d'un premier oscillateur qui envoie à une première fréquence un premier signal de porteuse non modulé et d'un deuxième oscillateur qui envoie à une deuxième fréquence un deuxième signal de porteuse non modulé. Les première et deuxième fréquences définissent les informations relatives à la circulation. Le récepteur comprend un détecteur qui détecte les premier et deuxième signaux et un dispositif de diffusion qui annonce les informations relatives à la circulation.
PCT/US1998/027823 1998-01-07 1998-12-30 Systeme d'avertissement donnant des informations relatives a la circulation WO1999035628A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU22094/99A AU2209499A (en) 1998-01-07 1998-12-30 Transportation information warning system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US7066998P 1998-01-07 1998-01-07
US60/070,669 1998-01-07
US7305398P 1998-01-29 1998-01-29
US60/073,053 1998-01-29

Publications (1)

Publication Number Publication Date
WO1999035628A1 true WO1999035628A1 (fr) 1999-07-15

Family

ID=26751392

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/027823 WO1999035628A1 (fr) 1998-01-07 1998-12-30 Systeme d'avertissement donnant des informations relatives a la circulation

Country Status (2)

Country Link
AU (1) AU2209499A (fr)
WO (1) WO1999035628A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2161180A1 (es) * 1999-12-17 2001-11-16 Sanchez Isidoro Martinez Sistema de alerta y seguridad para vehiculos de servicios de emergencia
WO2010048904A3 (fr) * 2008-10-29 2011-03-24 Devaisy S.R.O. Dispositif de communication et de commande pour des informations d'avertissement et d'alerte ou des systèmes de navigation utilisés notamment dans des moyens de transport
GB2489113A (en) * 2012-03-21 2012-09-19 Renesas Mobile Corp A cellular based intelligent transportation system using a secondary cell carrier

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673560A (en) * 1970-05-21 1972-06-27 Aerojet General Co Vehicle alerting system
US3997868A (en) * 1973-02-20 1976-12-14 Ribnick Gerson D Emergency vehicle warning system
US4196412A (en) * 1978-01-16 1980-04-01 General Signal Corporation Driver alert system
US4541119A (en) * 1984-10-03 1985-09-10 Cooper John R Portable broadcast band information transmitting system
US4717904A (en) * 1985-07-30 1988-01-05 Aisin Seiki Kabushiki Kaisha Collision responsive signal emitter for a vehicle
US4847589A (en) * 1988-07-26 1989-07-11 Dobbins Hugh L Visual and auditory signaling system
US4894642A (en) * 1988-11-03 1990-01-16 Cyclone Corporation Voice security system
US5021780A (en) * 1989-09-29 1991-06-04 Richard F. Fabiano Bus passenger alerting system
US5181027A (en) * 1990-01-24 1993-01-19 Rockwell International Corporation Method and apparatus for an air traffic control system
US5402117A (en) * 1991-05-27 1995-03-28 U.S. Philips Corporation Method of collecting traffic information, and system for performing the method
US5495242A (en) * 1993-08-16 1996-02-27 C.A.P.S., Inc. System and method for detection of aural signals
US5497148A (en) * 1994-08-30 1996-03-05 Cobra Electronics Corporation Traffic information warning system
US5534847A (en) * 1994-11-23 1996-07-09 Mcgregor; Gerald C. Bicycle alarm system
US5554982A (en) * 1994-08-01 1996-09-10 Hughes Aircraft Co. Wireless train proximity alert system
US5635920A (en) * 1994-11-29 1997-06-03 J. B. Pogue Remote traffic signal indicator

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3673560A (en) * 1970-05-21 1972-06-27 Aerojet General Co Vehicle alerting system
US3997868A (en) * 1973-02-20 1976-12-14 Ribnick Gerson D Emergency vehicle warning system
US4196412A (en) * 1978-01-16 1980-04-01 General Signal Corporation Driver alert system
US4541119A (en) * 1984-10-03 1985-09-10 Cooper John R Portable broadcast band information transmitting system
US4717904A (en) * 1985-07-30 1988-01-05 Aisin Seiki Kabushiki Kaisha Collision responsive signal emitter for a vehicle
US4847589A (en) * 1988-07-26 1989-07-11 Dobbins Hugh L Visual and auditory signaling system
US4894642A (en) * 1988-11-03 1990-01-16 Cyclone Corporation Voice security system
US5021780A (en) * 1989-09-29 1991-06-04 Richard F. Fabiano Bus passenger alerting system
US5181027A (en) * 1990-01-24 1993-01-19 Rockwell International Corporation Method and apparatus for an air traffic control system
US5402117A (en) * 1991-05-27 1995-03-28 U.S. Philips Corporation Method of collecting traffic information, and system for performing the method
US5495242A (en) * 1993-08-16 1996-02-27 C.A.P.S., Inc. System and method for detection of aural signals
US5554982A (en) * 1994-08-01 1996-09-10 Hughes Aircraft Co. Wireless train proximity alert system
US5497148A (en) * 1994-08-30 1996-03-05 Cobra Electronics Corporation Traffic information warning system
US5534847A (en) * 1994-11-23 1996-07-09 Mcgregor; Gerald C. Bicycle alarm system
US5635920A (en) * 1994-11-29 1997-06-03 J. B. Pogue Remote traffic signal indicator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2161180A1 (es) * 1999-12-17 2001-11-16 Sanchez Isidoro Martinez Sistema de alerta y seguridad para vehiculos de servicios de emergencia
WO2010048904A3 (fr) * 2008-10-29 2011-03-24 Devaisy S.R.O. Dispositif de communication et de commande pour des informations d'avertissement et d'alerte ou des systèmes de navigation utilisés notamment dans des moyens de transport
GB2489113A (en) * 2012-03-21 2012-09-19 Renesas Mobile Corp A cellular based intelligent transportation system using a secondary cell carrier
GB2489113B (en) * 2012-03-21 2013-12-18 Renesas Mobile Corp Method and apparatus for dynamic vehicular communications
US8929902B2 (en) 2012-03-21 2015-01-06 Broadcom Corporation Method and apparatus for dynamic vehicular communications

Also Published As

Publication number Publication date
AU2209499A (en) 1999-07-26

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