WO2003015052A1 - Systeme d'echange d'informations entre des vehicules et un centre de surveillance - Google Patents
Systeme d'echange d'informations entre des vehicules et un centre de surveillance Download PDFInfo
- Publication number
- WO2003015052A1 WO2003015052A1 PCT/FR2002/002836 FR0202836W WO03015052A1 WO 2003015052 A1 WO2003015052 A1 WO 2003015052A1 FR 0202836 W FR0202836 W FR 0202836W WO 03015052 A1 WO03015052 A1 WO 03015052A1
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- WO
- WIPO (PCT)
- Prior art keywords
- terminal
- terminals
- path
- vehicle
- request
- Prior art date
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
- G08G1/207—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles with respect to certain areas, e.g. forbidden or allowed areas with possible alerting when inside or outside boundaries
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
Definitions
- the present invention relates to an information exchange system between vehicles and a monitoring center assigned to them.
- the information to be transferred is voluminous and requires specialized procedures.
- the company has different solutions, consisting for example of using: a smart card system involving on the one hand, a read / write terminal installed in the monitoring center connected to the computer system of the management center and, on the other hand, a terminal of the same type forming part of the computer system on board the truck, - a portable computer, of the PDA type, a cellular telephone device, for example of the GSM type, means of transmission by radio wave, for example high frequency waves, these means being able to involve, at the level of the monitoring center, an HF transmitter / receiver terminal, connected to the management center for example by wire connection and arranged at a fixed point, for example at the fuel distribution station; in this case, the trucks are fitted with HF transmitters / receivers or equivalent, the driver will then temporarily stop the truck to allow automatic transfer of information to the management center via the terminal of the monitoring center, networks wireless, for example, conforming to the "BLUE TOOTH" standard in which the entities
- HF radio transmission involves the use of a fixed device at the surveillance center, the HF terminal (s) constituting the only entry point (s) / output to the computer system of the management center.
- a drawback of this solution is that, when an HF terminal of the monitoring center is mobilized by an exchange with a truck, the other trucks must wait for the end of the exchange to communicate in turn. This limit is not lifted by the simple installation of other HF terminals in the monitoring center. Indeed, using current techniques the presence of a large number of trucks communicating in the same perimeter causes (using current techniques) interference disrupting the system.
- Another drawback of this solution consists in that in the event of a breakdown of the terminal of the monitoring center and / or of the link system which connects it to the computer system of the management center, communications are permanently interrupted.
- the invention therefore more particularly aims to eliminate all these drawbacks.
- this system is characterized in that:
- the vehicles each comprise an on-board radio transmission / reception terminal of deliberately limited range much smaller than the dimensions of said zone, this terminal comprising means of identification and / or positioning, composition of requests and constitution of the route, with a view to establishing connections with the surveillance center, these requests containing vehicle identification and positioning data, as well as vehicle-specific data transmission means when a connection has been established,
- the surveillance center comprises a plurality of central terminals directly connected to the computer system of the surveillance center, these central terminals comprising transmission / reception means matched to those of the vehicle terminals, - Said zone comprises a plurality of peripheral terminals of the same type as the on-board terminals, but arranged in fixed locations suitably chosen from said zone.
- the requesting terminal issues a connection request with the aim of finding a data transfer path to the destination terminal.
- the destination terminal If the destination terminal is within radio range of the requesting terminal and is able to connect (for example if it is not in communication) the destination terminal acknowledges receipt of the request, then the requesting terminal validates this route and performs data transfer along this route.
- relay terminal acknowledges receipt of the request at the requesting terminal at the same time as it retransmits the request, indicating its own identification and positioning data to the destination terminal and, by default, to a new relay terminal.
- the requesting terminal reconstitutes the route taken by the request to reach the destination terminal using the acknowledgments of receipt which have been forwarded to it (from relay terminals to relay terminals), then performs a data transfer along this route. Once the transfer has been made, the requesting terminal transmits an "end of transfer" message which can selectively erase in all relay terminals the data relating to the transfer made.
- This system operates without any specific structure linked to data transfers and without a pre-established network plan.
- the system begins an initial phase of discovery of the network (which varies over time). During this discovery phase, only the elements likely to intervene are identified. This discovery is made in successive stages of transmission of search requests for possible routes. When the transfer ends, the means for storing the elements erase the trace of the elements discovered.
- the system according to the invention has the following advantages:
- Figure 1 is a schematic representation for illustrating the principle of the system according to the invention.
- FIG. 2 is a block diagram of the circuits for circulating data by HF radio transmission or by the GSM telephone network, between a vehicle, a peripheral terminal and a central terminal.
- Figure 3 shows the processing and storage means available at a terminal fitted to a vehicle.
- FIG. 4 and 5 are schematic representations of the processing and storage means available at a peripheral terminal and a central terminal.
- FIG. 6 illustrates the operating principle of the storage means, for a vehicle terminal, for a peripheral terminal and for a central terminal.
- FIG. 7 illustrates a variant of the system in which the path search area is reduced.
- the rectangular block 1 represents the perimeter of a determined geographical area surrounding a surveillance center (block 2), equipped with a computer processing system (block 3) to which terminals are connected fixed central units B 5 , B 6 , B 7 , B 8 .
- vehicles or vehicles here trucks Ci to C 7 , equipped with mobile terminals connected to the vehicle's on-board computer can circulate or park.
- peripheral devices B] to B 4 are arranged at predetermined locations in the geographic area 1.
- Each of the terminals Bi to B 8 and of the terminals of the vehicles Cj to C 7 comprises a transmitter / receiver module capable of ensuring transmission by HF waves and is provided with data storage and processing means.
- these data storage and processing means could include:
- - position notification means 32, 52, 58, - journey request notification means: 33, 53, 59,
- the transmitter modules are represented by blocks 13, 15 and
- the mobile terminals assigned to trucks C] to C 7 may also include:
- a means of monitoring the geographical position using for example a system of the GPS 10 (Global Positioning System) type or the like, a means of transfer, by cellular network for example, of the GSM 22 type.
- GPS 10 Global Positioning System
- GSM 22 Global System for Mobile communications
- central terminals B 5 to B 8 may also contain:
- a cellular network transfer system for example of the GSM 23 type, a data transfer system 18 with the processing system 3 of the monitoring center 2.
- the range of the transmitter / receiver modules is deliberately limited so as to avoid interference and interference phenomena as much as possible.
- the vehicle Ci enters geographical area 1 (to go to the parking lot) and has data to be transferred to the computer system of the surveillance center. Vehicles C 2 to C 7 are already present in this area.
- the entry of the vehicle into the zone can be detected by means of positioning means 11 and means 30 for measuring the distance between the vehicle and position 36 of the monitoring center, stored in the means of storage 35 of the same vehicle, or by any other system.
- the vehicle can connect to the computer system of the surveillance center to warn it of its arrival and carry out the transfer of the digital data stored in the memory 35 of its on-board system.
- This information transmission takes place by wireless transfer means 13 (or GSM type transfer means 22).
- the path request notification means 33 send a transfer request R.
- the purpose of this request is to discover, in the vicinity of the vehicle Ci, a data transfer path to the processing center 3.
- the system according to the invention does not involve memory means permanently storing the characteristics of the various transmitter / receiver systems (central terminals, peripheral terminals, vehicle terminals) present in zone 1 and, on the other hand, that there is no pre-established transfer network.
- the means for memorizing the terminals used by the system namely, the means 35 for the vehicle terminals, the means 55 for the peripheral terminals and the means 61 for the central terminals store the following permanent data only (FIG. 6):
- An identifier 70, 90, 110 installed during the installation of the terminals. - Longitude / latitude pairs 71/72 - 91/92 - 111/112. On fixed terminals (peripheral terminals, central terminals) they are permanently installed during their installation. For vehicle terminals, it is the vehicle positioning system that permanently determines these torques.
- Priority information 73, 93 or 113 installed during installation and easily modifiable. This information can be used by the computing means to define the optimum path.
- the availability indicator 88 of this terminal is set to a value representative of a "origin / unavailable terminal” state.
- the indicator 108 of the peripheral terminal Bj is positioned on the "unavailable" state at the time of receipt of the notification sent by the terminal of the vehicle C].
- the notification means 53 of the peripheral terminal B] return to the vehicle terminal Ci an acknowledgment message containing its coordinates 90, 91, 92 and its priority characteristic.
- These data are stored by the storage means 35 of the terminal of the vehicle C] in a list 75 of the terminals 76 of the journey in progress.
- the coordinate 90 is stored in the box labeled 77, coordinate 91 in box 78, coordinate 92 in box 79 and coordinate 93 in box 80.
- the peripheral terminal Bi transmits in its turn, via its path request notification means 53, a request intended to find a terminal located downstream, in the direction of the final objectives constituted by the central terminals B s to B 8 .
- the peripheral terminal B 2 which receives the request and which, by a process similar to the previous one, transmits to the peripheral terminal B], thanks to its wireless transfer means 15, the characteristics 90, 91, 92, 93 of this terminal B 2 .
- the indicator 108 of terminal B 2 is then positioned on the "unavailable" state.
- the characteristics 90 to 93 of the terminal B 2 are stored in a list 95 of the storage means 55 of the peripheral terminal B] which includes all the terminals 26 downstream of the terminal Bj.
- the characteristic 90 of the terminal B 2 is stored in the box labeled 97, the characteristic 91, in the box 98, the characteristic 92 in the box 99 and the characteristic 93 in the box 100.
- the wireless transfer means 15 of the terminal B] transmit in turn to the terminal which is located upstream, here the vehicle terminal, the characteristics of the terminal B 2 which have just been stored in the list 95 of the points 96 which have just been stored. In the terminal of the vehicle Ci, this data is stored in the list 75 of the points 76 of the journey in progress.
- the system implemented stores the permanent characteristics of all the terminals located downstream in the current route.
- the vehicle terminal stores the characteristics of terminals B], B 2 , C 4 , C 5 , C 6 , and B 7 .
- Terminal B] stores that of terminals B 2 , C 4 , C 5 , C 6 , B 7 etc ...
- path terminals 76 are provided because the establishment method used can construct, from the terminal considered, several downstream paths.
- the storage means 35, 55, 61 comprise storage blocks 81, 101, 121 in which are stored in an analogous manner all the upstream paths 82, 102, 122 which end at a determined terminal. These journeys are recorded in lists 83, 103 and 123.
- the means of calculating the terminal Ci determine the optimum path. To this end, these calculation means may take into account criteria such as the length of the paths or the priority characteristics 73, 93, 113.
- the vehicle terminal C] then notifies all the downstream terminals concerned that they have been retained and releases the others who become available again for the construction of another route. Their storage spaces are erased.
- a terminal of the route being set up When a terminal of the route being set up does not find a response to its request for setting up a route, it notifies the upstream terminal of a failure alert which, step by step, leads to the vehicle terminal.
- the request transmission means of the vehicle terminal Ci can then launch various actions, such as the transmission to the downstream terminals that the request phase is completed, that they must eliminate from their storage means all the stored data and become available again. for other requests (the availability indicators 88, 98, 108 being positioned on an "available” state) or on the contrary that they must remain mobilized by the journey in progress, the most downstream terminal receiving from the terminal, by the route already established, the notification to continue to search for a downstream terminal for the route, in the direction of one of the central terminals.
- the transfer tracking means 34 of the terminal of the vehicle Ci control the progress of the transfer. If an interruption occurs, they are able to restart the transfer to the terminal where this process was interrupted.
- the notification means 33 of the vehicle terminals notify an end of transfer to each terminal of the journey.
- Each terminal erases all the data in blocks 74, 81, 94, 101, 114, 121 and returns the availability indicators to the "available" state (88, 98, 108).
- All the terminals of the route (Ci, B t , B 2 , C 4 , C 5 , C 6 , B 7 ) then become available again to participate in the construction of another route, initiated by example by the terminal of the vehicle C 4 which must carry out a data transmission.
- the request transmission means for making up the route of the terminal of the vehicle C 4 had been temporarily deactivated by the request Ri of the terminal Cj (by a process leading to the setting of indicator 108 in the unavailable state).
- the request transmission means of the vehicle terminal C 4 again has the possibility of playing the same role as those of the vehicle terminal Ci.
- the indicator 88 can switch to the "origin / unavailable terminal" state.
- this protocol can provide for a transmission process allowing the surveillance center to transmit data to a vehicle located in geographic area 1.
- the vehicle Ci which has just entered the surveillance zone and whose presence in this zone has been reported to the surveillance center will be chosen.
- the monitoring center selects an available central terminal, preferably but not necessarily the closest central terminal to the vehicle and transmits a trip establishment request to peripheral terminals or vehicle terminals possibly available within its range , it being understood that the objective to be reached is the terminal of the vehicle.
- the route is found and the monitoring center can transmit the data it intends to this terminal. If not, a network discovery process occurs. sets up similar to the previous one but in which the respective role of the requesting terminal and the destination terminal is reversed.
- the management and processing computer system could be located at a distance from the monitoring center with which it is associated, the data transfers between this management and monitoring system and the monitoring center could be ensured by any means classic (Modem, Internet).
- system according to the invention may have means making it possible to delimit a region within which the transfer paths must be made, in order to limit the number of terminals requested for each search for a transfer path.
- each vehicle terminal has a GPS or similar location device which permanently provides its geographical position.
- a vehicle terminal Ci wants to establish a communication with a terminal Bj, for example a central terminal, before starting the protocol described above, the system determines a direct (geographic) path (here a rectilinear path) between the points Ci and Bj, then determines around this path a transmission zone outside of which the bomes whatever they are will not be retained during the determination of the transmission path.
- the transmission zone is delimited by two straight lines ⁇ j, ⁇ 2 passing through the terminal Ci and extending symmetrically with respect to the path Ci, Bj, forming an angle ⁇ therebetween. This angle could constitute a parameter managed in the same way as the parameters previously mentioned.
- the system can then select one of the identified routes on the basis of predetermined criteria, for example the route consuming the fewest terminals, ie Ci-X 2 -X 6 -X 8 -X 10 , Bj.
- No network construction pre-exists, when either a vehicle terminal or a central terminal issues an initial request Rj for network establishment.
- the only permanent data that pre-exists are the characteristics 70 to 73, 90 to 93, 110 to 113 of the different terminals, including their unique identifier 70, 90, 110. They are only stored in the terminal that they characterize.
- No mapping of the terminals present is used.
- No terminal, in the absence of a transfer path in progress, has data stored concerning the other terminals.
- No terminal, or equivalent entity is pre-designated to play a role of master in transfers. This role is temporarily assigned to the requesting terminal, vehicle or central, which takes the initiative for the transfer (origin terminal).
- a route is only constructed for the desired transfer, at a given time. As soon as the transfer is completed, or definitively interrupted, a notification is transmitted by the requesting terminal at the origin of the journey, which causes the emptying of all the storage means used. Each mobilized terminal becomes available again to establish another route. The current route has disappeared, hence the qualifier of "fugitive network".
- a vehicle can move, causing the exit of its terminal from the action radii of the upstream and downstream terminals, on a path in which the vehicle terminal participates.
- the transfer is temporarily or permanently interrupted, so the "volatile network" management is justified.
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- General Physics & Mathematics (AREA)
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Abstract
Description
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0110686 | 2001-08-09 | ||
FR0110686 | 2001-08-09 |
Publications (1)
Publication Number | Publication Date |
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WO2003015052A1 true WO2003015052A1 (fr) | 2003-02-20 |
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ID=8866444
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Application Number | Title | Priority Date | Filing Date |
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PCT/FR2002/002836 WO2003015052A1 (fr) | 2001-08-09 | 2002-08-08 | Systeme d'echange d'informations entre des vehicules et un centre de surveillance |
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WO (1) | WO2003015052A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018175725A1 (fr) * | 2017-03-22 | 2018-09-27 | Cnh Industrial America Llc | Procédé et système de partage de point d'accès télématique |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0292811A2 (fr) * | 1987-05-26 | 1988-11-30 | Motorola Inc. | Dispositif et système de surveillance de véhicules |
DE9309540U1 (de) * | 1993-06-26 | 1993-08-26 | Diatec Automatisations-Technic Gmbh, 45886 Gelsenkirchen | Vorrichtung zur Früherkennung und Meldung von Fehler- und Gefahrenquellen in schienengebundenen und schienenlosen Fahrzeugen des öffentlichen Nahverkehrs |
EP0635800A1 (fr) * | 1993-07-23 | 1995-01-25 | Koninklijke KPN N.V. | Système et dispositif de transmission de données de véhicules |
WO1998011513A1 (fr) * | 1996-09-16 | 1998-03-19 | Minorplanet Limited | Transmission de donnees accumulees depuis des vehicules |
WO1999046899A2 (fr) * | 1998-03-11 | 1999-09-16 | Swisscom Ag | Procede de routage pour systemes de communication sans fil et repartis et dispositifs conçus a cet effet |
US6243387B1 (en) * | 1997-01-31 | 2001-06-05 | At&T Corp. | Architecture for lightweight signaling in ATM networks |
WO2001047181A2 (fr) * | 1999-12-22 | 2001-06-28 | Nokia Corporation | Acheminement de signal |
WO2002013415A2 (fr) * | 2000-08-08 | 2002-02-14 | Newton Howard | Reseau sans fil |
-
2002
- 2002-08-08 WO PCT/FR2002/002836 patent/WO2003015052A1/fr not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0292811A2 (fr) * | 1987-05-26 | 1988-11-30 | Motorola Inc. | Dispositif et système de surveillance de véhicules |
DE9309540U1 (de) * | 1993-06-26 | 1993-08-26 | Diatec Automatisations-Technic Gmbh, 45886 Gelsenkirchen | Vorrichtung zur Früherkennung und Meldung von Fehler- und Gefahrenquellen in schienengebundenen und schienenlosen Fahrzeugen des öffentlichen Nahverkehrs |
EP0635800A1 (fr) * | 1993-07-23 | 1995-01-25 | Koninklijke KPN N.V. | Système et dispositif de transmission de données de véhicules |
WO1998011513A1 (fr) * | 1996-09-16 | 1998-03-19 | Minorplanet Limited | Transmission de donnees accumulees depuis des vehicules |
US6243387B1 (en) * | 1997-01-31 | 2001-06-05 | At&T Corp. | Architecture for lightweight signaling in ATM networks |
WO1999046899A2 (fr) * | 1998-03-11 | 1999-09-16 | Swisscom Ag | Procede de routage pour systemes de communication sans fil et repartis et dispositifs conçus a cet effet |
WO2001047181A2 (fr) * | 1999-12-22 | 2001-06-28 | Nokia Corporation | Acheminement de signal |
WO2002013415A2 (fr) * | 2000-08-08 | 2002-02-14 | Newton Howard | Reseau sans fil |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018175725A1 (fr) * | 2017-03-22 | 2018-09-27 | Cnh Industrial America Llc | Procédé et système de partage de point d'accès télématique |
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