EP0865004A1 - Transponder tracking system for road toll installation - Google Patents
Transponder tracking system for road toll installation Download PDFInfo
- Publication number
- EP0865004A1 EP0865004A1 EP98400584A EP98400584A EP0865004A1 EP 0865004 A1 EP0865004 A1 EP 0865004A1 EP 98400584 A EP98400584 A EP 98400584A EP 98400584 A EP98400584 A EP 98400584A EP 0865004 A1 EP0865004 A1 EP 0865004A1
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- EP
- European Patent Office
- Prior art keywords
- transponder
- beacons
- communication
- beacon
- width
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
- G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
-
- 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
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
Definitions
- a system for locating a transponder that is moves along a track with a certain width.
- Such a system is more particularly intended for an installation of multi-way highway toll including a camera suppression system with automatic identification of fraudulent vehicles by image capture of plates of registration of these fraudulent vehicles.
- vehicles using the motorway network are each equipped with a transponder (generally placed behind the windshield) likely to communicate with beacons mounted on a gantry overhanging the lane at a toll section.
- Each transponder may include a prepayment card which is debited when transponder under the gantry following a transaction between the transponder and a management center connected to the beacons.
- the object of the invention is to propose a system for locating laterally a transponder which passes under an electronic toll gate, that is to say to determine its position relative to a lateral side of the track.
- Figure 1 very schematically shows an electronic toll system multi-lane motorway using a location system according to the invention.
- Figure 2 illustrates very schematically the principle of localization a transponder using beacons according to the invention.
- Figure 3 illustrates the association of portions of track width with the tags.
- a multi-way electronic toll system motorway includes a microwave communication system to base of B tags and T transponders able to communicate remotely together.
- Beacons B are arranged on a gantry 1 overhanging the tracks parallels on which vehicles move. Thereafter we will refer only one track to designate the parallel tracks under gantry 1.
- Each vehicle using the toll lane must be equipped with a transponder T which is generally fixed behind the windshield of the vehicle as illustrated in figure 1.
- Each T transponder includes a transmitter / receiver and a electronic management of an electronic prepayment card which debits in the card a certain amount following a transaction between a connected management center to the transmitter / receiver beacons and the transponder which passes under the gantry.
- the installation also includes an image capture system including cameras such as 2 placed upstream of gantry 1 in the direction of moving vehicles to photograph the back plates here of registration of vehicles passing under the gantry to carry out a crackdown on fraudulent vehicles. Other cameras may be provided for photograph the vehicle registration plates.
- Infrared, laser or similar detectors such as 3 are arranged on gantry 1 to detect the passage of vehicles and locate them. More particularly these detectors 3 are divided into several curtains of detectors (three curtains in Figure 1) which extend transversely to the track which allows them to be located both transversely to the track and longitudinally with respect to the track.
- the lateral location system of a T or more transponder T transponders arriving directly under gantry 1 therefore uses communication between the beacons and the transponder (s).
- each beacon B has a communication zone which in space is substantially ovoid and which in relation to the ground has the shape of an ellipse S.
- FIG. 2 shows six beacons B1 to B6 which are distributed over the width l v of the channel 4.
- the number of beacons is here purely illustrative.
- Each beacon is capable of communicating with a transponder which moves in its communication area.
- the communication zones of the beacons B1 to B6 are represented by ellipses S1 to S6. We see in FIG. 2 that the communication zones of the beacons have a small width lB smaller on the ground than the width l v of the channel 4.
- the distribution of tags B1 to B6 transversely to. channel 4 is such that the communication zones S1 to S6 respectively of the beacons B1 to B6 overlap two by two and cover the entire width l v of channel 4.
- a control means U which is connected to the tags B1 to B6 acts cyclically on these beacons in order to make them emit signals in order to establish a communication with a transponder which will pass under gantry 1, that is to say which will cross at least one of the communication zones S1 to S6.
- the way control is arranged to detect and identify the tags having established the communication with the transponder and to associate the tag or tags detected with one of the lateral portions P1 to P6 of channel 4.
- the tags B4 and B5 have established a communication with a transponder, this is located at the intersection of the communication zones S4 and S5, i.e. in the P4 / 5 portion of width of channel 4.
- This control means U can be programmed to restore a signature in the form of a binary word comprising as many bits as lateral portions defined for the channel, a bit at 1 in this word indicating by example the portion in which the transponder is located.
- the control means U is adapted to transmit a signal first by the tags B1, B3, B5 and then by the tags B2, B4 and B6 (or vice versa) so as to avoid interference problems between tags adjacent. It is understood that this temporal multiplexing of the emission of the beacons can be changed.
- control means U can be adapted to perform a transponder positioning control by selectively reactivating the two beacons that established communication with the transponder by making them re-issue signals.
- Tags B can also be used to determine the position longitudinal of a transponder on the track if the control means U is suitable to date the lateral positioning signatures.
Abstract
Description
L'invention concerne un système pour localiser un transpondeur qui se déplace le long d'une voie ayant une certaine largeur.A system for locating a transponder that is moves along a track with a certain width.
Un tel système est plus particulièrement destiné à une installation de télépéage autoroutier multivoie incluant un système de répression à caméras avec identification automatique des véhicules fraudeurs par prise d'image des plaques d'immatriculation de ces véhicules fraudeurs.Such a system is more particularly intended for an installation of multi-way highway toll including a camera suppression system with automatic identification of fraudulent vehicles by image capture of plates of registration of these fraudulent vehicles.
Dans ce genre d'installation de télépéage, les véhicules qui empruntent le réseau autoroutier sont équipés chacun d'un transpondeur (placé généralement derrière le pare brise) susceptible de communiquer avec des balises montées sur un portique surplombant la voie à une section de péage. Chaque transpondeur peut comporter une carte de prépaiement qui est débitée au passage du transpondeur sous le portique suite à une transaction entre le transpondeur et un centre de gestion raccordé aux balises.In this type of electronic toll facility, vehicles using the motorway network are each equipped with a transponder (generally placed behind the windshield) likely to communicate with beacons mounted on a gantry overhanging the lane at a toll section. Each transponder may include a prepayment card which is debited when transponder under the gantry following a transaction between the transponder and a management center connected to the beacons.
Pour discriminer les véhicules fraudeurs, par exemple ceux qui n'ont pas de transpondeur ou ceux dont le solde mémorisé dans la carte de prépaiement est épuisé, il est nécessaire de localiser de façon assez précise chaque transpondeur à son passage sous le portique pour pouvoir l'associer à un véhicule.To discriminate against fraudulent vehicles, for example those that have not transponder or those whose balance stored in the prepayment card is exhausted, it is necessary to locate each transponder fairly precisely its passage under the gantry to be able to associate it with a vehicle.
Le but de l'invention est de proposer un système pour localiser latéralement un transpondeur qui passe sous un portique de télépéage, c'est-à-dire pour déterminer sa position par rapport à un côté latéral de la voie.The object of the invention is to propose a system for locating laterally a transponder which passes under an electronic toll gate, that is to say to determine its position relative to a lateral side of the track.
A cet effet, l'invention a pour objet un système pour localiser un transpondeur qui se déplace le long d'une voie ayant une certaine largeur, caractérisé en ce qu'il comprend :
- un ensemble de balises susceptibles de communiquer chacune avec ce transpondeur si ce dernier se présente dans une zone de communication propre à la balise considérée et ayant une largeur plus petite que la largeur de la voie, ces balises étant réparties suivant un alignement transversal à la voie de telle façon que les zones de communication des balises se chevauchent deux à deux et recouvrent ensembles toute la largeur de la voie,
- et un moyen de commande qui agit cycliquement sur les balises de façon à leur faire émettre des signaux en vue d'établir une communication entre celles-ci et le transpondeur lors du passage de ce dernier dans l'une au moins des zones de communication des balises, qui détecte la ou les balises ayant établi ladite communication avec le transpondeur et qui associe la ou les balises détectées à une certaine portion de la largeur de la voie indicative de la position latérale du transpondeur sur la voie, lesdits moyens de commande activant lesdites balises selon une séquence telle que deux balises voisines n'émettent pas simultanément.
- a set of beacons each capable of communicating with this transponder if the latter is present in a communication area specific to the beacon considered and having a width smaller than the width of the track, these beacons being distributed in an alignment transverse to the track in such a way that the communication zones of the beacons overlap two by two and together cover the entire width of the track,
- and a control means which acts cyclically on the beacons so as to cause them to emit signals with a view to establishing communication between them and the transponder when the latter passes through at least one of the communication zones of the beacons, which detects the beacon (s) having established said communication with the transponder and which associates the detected beacon (s) with a certain portion of the width of the channel indicative of the lateral position of the transponder on the channel, said control means activating said beacons in a sequence such that two neighboring beacons do not transmit simultaneously.
On voit donc que ce système de localisation est particulièrement simple à mettre en oeuvre. Il utilise simplement les balises déjà en place pour effectuer les transactions de télépéage. Il est d'autant plus précis que le nombre de balises utilisées est important et que ces balises ont des zones de communication très localisées et précises.We can therefore see that this localization system is particularly simple to enforce. It simply uses the tags already in place to perform the Electronic toll transactions. It is all the more precise as the number of tags used is important and that these tags have very communication areas localized and precise.
Ce système de localisation est décrit plus en détails ci-après et illustré sur les dessins.This localization system is described in more detail below and illustrated on the drawings.
La figure 1 montre très schématiquement une installation de télépéage autoroutier multivoie utilisant un système de localisation selon l'invention.Figure 1 very schematically shows an electronic toll system multi-lane motorway using a location system according to the invention.
La figure 2 illustre de façon très schématique le principe de la localisation d'un transpondeur à l'aide de balises selon l'invention.Figure 2 illustrates very schematically the principle of localization a transponder using beacons according to the invention.
La figure 3 illustre l'association de portions de largeur de la voie avec les balises.Figure 3 illustrates the association of portions of track width with the tags.
Figure 1, une installation de télépéage multivoie (à plusieurs voies parallèles) autoroutier comprend un système de communication hyperfréquences à base de balises B et de transpondeurs T aptes à communiquer à distance ensembles.Figure 1, a multi-way electronic toll system motorway includes a microwave communication system to base of B tags and T transponders able to communicate remotely together.
Les balises B sont disposées sur un portique 1 surplombant les voies
parallèles sur lesquelles se déplacent des véhicules. Par la suite on fera référence
uniquement à une voie pour désigner les voies parallèles sous le portique 1. Beacons B are arranged on a
Chaque véhicule empruntant la voie à péage doit être équipé d'un transpondeur T qui est généralement fixé derrière le pare brise du véhicule comme illustré sur la figure 1.Each vehicle using the toll lane must be equipped with a transponder T which is generally fixed behind the windshield of the vehicle as illustrated in figure 1.
Chaque transpondeur T comprend un émetteur/récepteur et une électronique de gestion d'une carte de prépaiement électronique qui débite dans la carte un certain montant suite à une transaction entre un centre de gestion relié aux balises émettrices/réceptrices et le transpondeur qui passe sous le portique.Each T transponder includes a transmitter / receiver and a electronic management of an electronic prepayment card which debits in the card a certain amount following a transaction between a connected management center to the transmitter / receiver beacons and the transponder which passes under the gantry.
L'installation comprend encore un système de prise d'images incluant des
caméras telles que 2 placées en amont du portique 1 suivant la direction de
déplacement des véhicules pour photographier ici les plaques arrières
d'immatriculation des véhicules passant sous le portique en vue d'effectuer une
répression des véhicules fraudeurs. D'autres caméras peuvent être prévues pour
photographier les plaques avant d'immatriculation des véhicules.The installation also includes an image capture system including
cameras such as 2 placed upstream of
Des détecteurs à infrarouge, laser ou analogues telles que 3 sont disposés
sur le portique 1 pour détecter le passage des véhicules et les localiser. Plus
particulièrement ces détecteurs 3 sont répartis en plusieurs rideaux de détecteurs
(trois rideaux sur la figure 1) qui s'étendent transversalement à la voie ce qui
permet de les localiser à la fois transversalement par rapport à la voie et
longitudinalement par rapport à la voie.Infrared, laser or similar detectors such as 3 are arranged
on
Selon l'invention, le système de communication à base de balises B et de transpondeurs T est utilisé pour localiser latéralement chaque transpondeur qui passe sous le portique. Cette localisation latérale est nécessaire pour pouvoir associer un transpondeur à un véhicule (lui-même localisé à l'aide des détecteurs 3) en vue d'effectuer la répression des véhicules fraudeurs. De façon générale, le repérage des véhicules fraudeurs s'effectue par :
- réalisation de transactions avec des transpondeurs circulant sous le portique,
- localisation de la trace géométrique datée de ces transpondeurs,
- localisation de la trace géométrique datée des véhicules,
- association entre les traces des transpondeurs et des véhicules,
- repérage direct des véhicules fraudeurs associés aux transpondeurs fraudeurs,
- repérage diffférentiel des véhicules fraudeurs non associés à des transpondeurs.
- carrying out transactions with transponders circulating under the gantry,
- location of the dated geometric trace of these transponders,
- location of the dated geometric trace of the vehicles,
- association between traces of transponders and vehicles,
- direct identification of fraudulent vehicles associated with fraudulent transponders,
- differential identification of fraudulent vehicles not associated with transponders.
Le système de localisation latérale d'un transpondeur T ou de plusieurs
transpondeurs T arrivant de front sous le portique 1 utilise donc la communication
entre les balises et le ou les transpondeurs.The lateral location system of a T or more transponder
T transponders arriving directly under
Plus particulièrement, dans ce système, les balises B sont réparties transversalement à la voie et sont espacées régulièrement entre elles. Chaque balise B a une zone de communication qui dans l'espace est sensiblement ovoïde et qui par rapport au sol a la forme d'une ellipse S.More particularly, in this system, the B tags are distributed transversely to the track and are spaced regularly between them. Each beacon B has a communication zone which in space is substantially ovoid and which in relation to the ground has the shape of an ellipse S.
la figure 2 montre six balises B1 à B6 qui sont réparties sur la largeur ℓv
de la voie 4. Le nombre de balises est ici purement illustratif. Chaque balise est
susceptible de communiquer avec un transpondeur qui se déplace dans sa zone
de communication. Les zones de communication des balises B1 à B6 sont
représentées par des ellipses S1 à S6. On voie sur la figure 2 que les zones de
communication des balises ont au sol une petite largeur lB plus petite que la
largeur ℓv de la voie 4.FIG. 2 shows six beacons B1 to B6 which are distributed over the width ℓ v of the
La répartition des balises B1 à B6 transversalement à. la voie 4 est telle que
les zones de communication S1 à S6 respectivement des balises B1 à B6 se
chevauchent deux à deux et recouvrent toute la largeur ℓv de la voie 4.The distribution of tags B1 to B6 transversely to.
On comprend donc que si une transaction s'établit entre la balise B1 et un transpondeur, c'est que ce transpondeur se trouve dans la zone S1. Si une communication s'établit entre les deux balises B1 et B2 et un transpondeur, c'est que ce transpondeur se trouve à l'intersection des zones S1 et S2 c'est-à-dire dans une sous-zone indiquée par S1/2 sur la figure 2. Par conséquent, si une seule balise communique avec un transpondeur, c'est que ce transpondeur se trouve dans la partie de la zone de communication de la balise non recouverte par une autre zone de communication d'une balise adjacente. We therefore understand that if a transaction is established between the tag B1 and a transponder is that this transponder is in zone S1. If one communication is established between the two beacons B1 and B2 and a transponder, it is that this transponder is at the intersection of zones S1 and S2, that is to say in a sub-area indicated by S1 / 2 in Figure 2. Therefore, if only one beacon communicates with a transponder, is that this transponder is located in the part of the communication area of the beacon not covered by a other communication area of an adjacent beacon.
Il est donc possible de diviser la largeur ℓv de la voie 4 en petites portions
P1, P1/2, ...P6 correspondant soit une zone de communication d'une balise non
recouverte par une zone de communication d'une balise adjacente, soit à une
zone d'intersection de deux zones de communication de deux balises adjacentes.It is therefore possible to divide the width ℓ v of the
Dans le système de localisation d'un transpondeur selon l'invention, un
moyen de commande U qui est relié aux balises B1 à B6 agit cycliquement sur ces
balises de façon à leur faire émettre des signaux en vue d'établir une
communication avec un transpondeur qui va passer sous le portique 1, c'est-à-dire
qui va traverser l'une au moins des zones de communication S1 à S6. Le moyen
de commande est agencé pour détecter et identifier les balises ayant établi la
communication avec le transpondeur et pour associer la ou les balises détectées à
l'une des portions latérales P1 à P6 de la voie 4.In the location system of a transponder according to the invention, a
control means U which is connected to the tags B1 to B6 acts cyclically on these
beacons in order to make them emit signals in order to establish a
communication with a transponder which will pass under
A titre d'exemple, si les balises B4 et B5 ont établi une communication
avec un transpondeur, celui-ci se situe à l'intersection des zones de communication
S4 et S5, c'est à dire dans la portion P4/5 de largeur de la voie 4.For example, if the tags B4 and B5 have established a communication
with a transponder, this is located at the intersection of the communication zones
S4 and S5, i.e. in the P4 / 5 portion of width of
Ce moyen de commande U peut être programmé pour restituer une signature sous la forme d'un mot binaire comportant autant de bits que de portions latérales définies pour la voie, un bit à 1 dans ce mot indiquant par exemple la portion dans laquelle se situe le transpondeur.This control means U can be programmed to restore a signature in the form of a binary word comprising as many bits as lateral portions defined for the channel, a bit at 1 in this word indicating by example the portion in which the transponder is located.
Le moyen de commande U est adapté pour faire émettre un signal d'abord par les balises B1,B3,B5 et ensuite par les balises B2,B4 et B6 (ou inversement) de sorte à éviter les problèmes d'interférence entre balises adjacentes. Il est entendu que ce multiplexage temporel de l'émission des balises peut être modifié.The control means U is adapted to transmit a signal first by the tags B1, B3, B5 and then by the tags B2, B4 and B6 (or vice versa) so as to avoid interference problems between tags adjacent. It is understood that this temporal multiplexing of the emission of the beacons can be changed.
Par ailleurs, le moyen de commande U peut être adapté pour effectuer un contrôle de positionnement du transpondeur en réactivant sélectivement la ou les deux balises qui ont établi une communication avec le transpondeur en leur faisant effectuer une nouvelle émission de signaux. Furthermore, the control means U can be adapted to perform a transponder positioning control by selectively reactivating the two beacons that established communication with the transponder by making them re-issue signals.
Les balises B peuvent aussi être utilisées pour déterminer la position longitudinale d'un transpondeur sur la voie si le moyen de commande U est apte à dater les signatures de positionnement latéral.Tags B can also be used to determine the position longitudinal of a transponder on the track if the control means U is suitable to date the lateral positioning signatures.
Claims (3)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9702990 | 1997-03-13 | ||
FR9702990A FR2760849B1 (en) | 1997-03-13 | 1997-03-13 | TRANSPONDER LOCATION SYSTEM FOR HIGHWAY TELEPHONE INSTALLATION |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0865004A1 true EP0865004A1 (en) | 1998-09-16 |
EP0865004B1 EP0865004B1 (en) | 2002-07-17 |
Family
ID=9504699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98400584A Expired - Lifetime EP0865004B1 (en) | 1997-03-13 | 1998-03-12 | Transponder tracking system for road toll installation |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0865004B1 (en) |
KR (1) | KR100540400B1 (en) |
AR (1) | AR008956A1 (en) |
AT (1) | ATE220812T1 (en) |
BR (1) | BR9800202A (en) |
DE (1) | DE69806526T2 (en) |
ES (1) | ES2178122T3 (en) |
FR (1) | FR2760849B1 (en) |
MY (1) | MY120027A (en) |
SG (1) | SG71764A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2904720A1 (en) * | 2006-08-03 | 2008-02-08 | Cs Systemes D Information Sa | Electronic toll collection system for motorway, has infrared video camera associated to radio frequency tag to capture images of zones covered by tag, and virtual monitoring unit coordinating operation of laser detector, tag and camera |
FR2927185A1 (en) * | 2008-02-06 | 2009-08-07 | Cs Systemes D Information Sa | Barrierless electronic toll collection system i.e. free-flow system, for road surface in superhighway vehicle, has control units arranged for coordinating and exploiting operation of detection units, radio-beacons and cameras in real time |
US20110125558A1 (en) * | 2009-11-23 | 2011-05-26 | Kapsch Trafficcom Ag | Method and device for generating toll information in a road-toll system |
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US7570214B2 (en) | 1999-03-05 | 2009-08-04 | Era Systems, Inc. | Method and apparatus for ADS-B validation, active and passive multilateration, and elliptical surviellance |
US7777675B2 (en) | 1999-03-05 | 2010-08-17 | Era Systems Corporation | Deployable passive broadband aircraft tracking |
US7889133B2 (en) | 1999-03-05 | 2011-02-15 | Itt Manufacturing Enterprises, Inc. | Multilateration enhancements for noise and operations management |
US8203486B1 (en) | 1999-03-05 | 2012-06-19 | Omnipol A.S. | Transmitter independent techniques to extend the performance of passive coherent location |
US7908077B2 (en) | 2003-06-10 | 2011-03-15 | Itt Manufacturing Enterprises, Inc. | Land use compatibility planning software |
US7667647B2 (en) | 1999-03-05 | 2010-02-23 | Era Systems Corporation | Extension of aircraft tracking and positive identification from movement areas into non-movement areas |
US7782256B2 (en) | 1999-03-05 | 2010-08-24 | Era Systems Corporation | Enhanced passive coherent location techniques to track and identify UAVs, UCAVs, MAVs, and other objects |
US7739167B2 (en) | 1999-03-05 | 2010-06-15 | Era Systems Corporation | Automated management of airport revenues |
US8446321B2 (en) | 1999-03-05 | 2013-05-21 | Omnipol A.S. | Deployable intelligence and tracking system for homeland security and search and rescue |
KR20040028093A (en) * | 2002-09-28 | 2004-04-03 | 주식회사 케이티 | Automatic detection method of communication reversion for ETC system |
US7965227B2 (en) | 2006-05-08 | 2011-06-21 | Era Systems, Inc. | Aircraft tracking using low cost tagging as a discriminator |
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EP0627718A1 (en) * | 1993-06-01 | 1994-12-07 | Robert Bosch Gmbh | Method for wireless data exchange between a fixed station and moving objects, especially vehicles |
EP0713201A2 (en) * | 1994-11-18 | 1996-05-22 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Device for locating a moving body having a response unit |
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KR950001559A (en) * | 1993-06-10 | 1995-01-03 | 박찬호 | Highway fare control system |
-
1997
- 1997-03-13 FR FR9702990A patent/FR2760849B1/en not_active Expired - Fee Related
-
1998
- 1998-03-09 SG SG1998000509A patent/SG71764A1/en unknown
- 1998-03-10 MY MYPI98001031A patent/MY120027A/en unknown
- 1998-03-12 AT AT98400584T patent/ATE220812T1/en active
- 1998-03-12 ES ES98400584T patent/ES2178122T3/en not_active Expired - Lifetime
- 1998-03-12 DE DE69806526T patent/DE69806526T2/en not_active Expired - Lifetime
- 1998-03-12 AR ARP980101102A patent/AR008956A1/en unknown
- 1998-03-12 EP EP98400584A patent/EP0865004B1/en not_active Expired - Lifetime
- 1998-03-12 KR KR1019980008261A patent/KR100540400B1/en not_active IP Right Cessation
- 1998-03-12 BR BR9800202A patent/BR9800202A/en not_active Application Discontinuation
Patent Citations (3)
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EP0627718A1 (en) * | 1993-06-01 | 1994-12-07 | Robert Bosch Gmbh | Method for wireless data exchange between a fixed station and moving objects, especially vehicles |
EP0713201A2 (en) * | 1994-11-18 | 1996-05-22 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Device for locating a moving body having a response unit |
DE4446436A1 (en) * | 1994-12-23 | 1996-06-27 | Ant Nachrichtentech | Moving vehicle detection and registration by transceiver dialogue |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2904720A1 (en) * | 2006-08-03 | 2008-02-08 | Cs Systemes D Information Sa | Electronic toll collection system for motorway, has infrared video camera associated to radio frequency tag to capture images of zones covered by tag, and virtual monitoring unit coordinating operation of laser detector, tag and camera |
EP1903505A1 (en) * | 2006-08-03 | 2008-03-26 | CS Systemes d'Informations | System and method of electronic toll collection without barriers |
FR2927185A1 (en) * | 2008-02-06 | 2009-08-07 | Cs Systemes D Information Sa | Barrierless electronic toll collection system i.e. free-flow system, for road surface in superhighway vehicle, has control units arranged for coordinating and exploiting operation of detection units, radio-beacons and cameras in real time |
US20110125558A1 (en) * | 2009-11-23 | 2011-05-26 | Kapsch Trafficcom Ag | Method and device for generating toll information in a road-toll system |
US9269197B2 (en) * | 2009-11-23 | 2016-02-23 | Kapsch Trafficcom Ag | Method and device for generating toll information in a road-toll system |
Also Published As
Publication number | Publication date |
---|---|
BR9800202A (en) | 1999-03-02 |
KR100540400B1 (en) | 2006-02-28 |
MY120027A (en) | 2005-08-30 |
KR19980080174A (en) | 1998-11-25 |
ATE220812T1 (en) | 2002-08-15 |
DE69806526D1 (en) | 2002-08-22 |
FR2760849B1 (en) | 1999-04-16 |
ES2178122T3 (en) | 2002-12-16 |
DE69806526T2 (en) | 2003-04-03 |
EP0865004B1 (en) | 2002-07-17 |
SG71764A1 (en) | 2000-04-18 |
AR008956A1 (en) | 2000-02-23 |
FR2760849A1 (en) | 1998-09-18 |
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