FR2815157A1 - Road safety device to prevent a vehicle entering a one way road in the wrong direction, uses Doppler radar to detect vehicle approaching in wrong direction on slip road and then generates warnings - Google Patents

Road safety device to prevent a vehicle entering a one way road in the wrong direction, uses Doppler radar to detect vehicle approaching in wrong direction on slip road and then generates warnings Download PDF

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Publication number
FR2815157A1
FR2815157A1 FR0012967A FR0012967A FR2815157A1 FR 2815157 A1 FR2815157 A1 FR 2815157A1 FR 0012967 A FR0012967 A FR 0012967A FR 0012967 A FR0012967 A FR 0012967A FR 2815157 A1 FR2815157 A1 FR 2815157A1
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road
wrong direction
safety device
doppler radar
vehicle
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FR0012967A
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FR2815157B1 (en
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Michel Geay
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    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/07Controlling traffic signals
    • G08G1/075Ramp control
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/056Detecting movement of traffic to be counted or controlled with provision for distinguishing direction of travel

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)

Abstract

The safety device has a Doppler radar unit (A) with the beam (F1) directed along the slip road so that it normally sees vehicles moving away from it. An approaching vehicle is going to enter the road against the traffic, and triggers an audible and a visible signal to alert the driver. If this is ignored a second radar (B) confirms the approach and generates a radio alert.

Description

<Desc/Clms Page number 1> <Desc / Clms Page number 1>

Figure img00010001
Figure img00010001

La présente invention concerne un dispositif de sécurité routière susceptible Il fi de remplacer le dispositif de prévention du système P. 1. A. C. 'Prévention et
Interdiction des Accès à Contresens'objet du brevet 9409237 du 26.07. 94.
The present invention relates to a road safety device capable of replacing the prevention device of the system P. 1. AC 'Prévention et
Prohibition of Access to Contresens subject to patent 9409237 of 26.07. 94.

ART ANTERIEUR Il 1/
Le dispositif'prévention'P. LA. C. était mis en oeuvre dans les premiers mètres des bretelles pour éviter leur accès à contresens, ceci cependant pouvait, en cas de panique du conducteur du véhicule s'avérer dangereux pour les véhicules circulant dans le bon sens et occasionner des embouteillages voire des carambolages préjudiciables à la sécurité routière.
PRIOR ART There 1 /
The prevention device P. THE. C. was implemented in the first meters of the ramps to avoid their access in the wrong direction, this however could, in the event of panic of the driver of the vehicle prove dangerous for vehicles traveling in the right direction and cause traffic jams or even pileup detrimental to road safety.

Le dispositif P. LA. C. (prévention et interdiction) ne peut-être mis en oeuvre que dans les cas où la bretelle d'accès est suffisamment longue pour permettre le positionnement des systèmes de détection par boucles.  The device P. LA. C. (prevention and prohibition) can only be implemented in cases where the access ramp is long enough to allow positioning of the loop detection systems.

L'installation du système nécessite une Infrastructure lourde avec une arrivée électrique de 220 Volts au milieu de la bretelle, des traversées de routes pour alimenter les éléments de sécurité : barrière, feux sur la voie de dégagement, sur le barrière, à l'entrée à contresens de la bretelle et des travaux pour incorporer les boucles magnétiques dans le revêtement bitumeux de la bretelle
Le coût occasionné par les travaux de terrassement pour i' alimentation est important par rapport au devis général.
The installation of the system requires a heavy infrastructure with an electrical supply of 220 volts in the middle of the ramp, road crossings to supply the safety elements: barrier, lights on the escape route, on the barrier, at the entrance. against the flow of the ramp and work to incorporate the magnetic loops in the bituminous coating of the ramp
The cost of earthworks for food is significant compared to the general estimate.

Par contre des études menées par l'Institut National de Recherche Sur les Transports et leur sécurité (I. N. R. E. T. S) montrent que 90 % des contresens seraient arrêtés par Le module de prévention. On the other hand, studies carried out by the National Institute for Research on Transport and their safety (I. N. R. E. T. T. S) show that 90% of the wrong way would be stopped by the prevention module.

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Figure img00020001
Figure img00020001

Tous ces éléments ont conduit le demandeur à réfléchir sur un nouveau système de détection et d'alerte susceptible d'éliminer tous les inconvénients évoqués ; à savoir : - prévenir le conducteur du véhicule avant qu'il ne s'engage sur la bretelle à contresens, - doter le dispositif d'une alimentation électrique autonome pour réduire les coûts d'infrastructure, - disposer un système capable avec des informations fiables, de donner l'alerte au centre responsable de la sécurité routière ou à d'autres organismes pour prendre toutes les mesures susceptibles de garantir la sécurité des autres véhicules. All these elements led the applicant to reflect on a new detection and alert system capable of eliminating all the drawbacks mentioned; to know: - to warn the driver of the vehicle before it engages on the slip road, - to provide the device with an autonomous electrical supply to reduce infrastructure costs, - to have a capable system with reliable information , to give the alert to the center responsible for road safety or to other organizations to take all measures likely to guarantee the safety of other vehicles.

ETUDE DU NOUVEAU SYSTEME DE PREVENTION (Fia 1 & 2)
Un radar de type DOPPLER (A) est fixé à une hauteur de 3 mètres sur un mat 1 de 4 mètres de haut situé à environ 5 mètres de la bretelle d'accès. Il permet de déterminer le sens de circulation et la vitesse du véhicule en rapprochement dans le lobe défini F1 pour le radar avant que le véhicule ne pénètre sur la bretelle d'accès.
STUDY OF THE NEW PREVENTION SYSTEM (Fia 1 & 2)
A DOPPLER type radar (A) is fixed at a height of 3 meters on a mast 1 4 meters high located about 5 meters from the access ramp. It makes it possible to determine the direction of circulation and the speed of the vehicle approaching in the defined lobe F1 for the radar before the vehicle enters the access ramp.

Le rapprochement à l'intérieur du lobe, enregistré sur une carte électronique de gestion numérique des données est gardée en mémoire pendant une dizaine de secondes, provoque l'éclairage d'un panneau 2 réfléchissant 'sens interdit'situé sur le mat à la hauteur d'un conducteur assis, ainsi qu'un signal sonore pour attirer l'attention des conducteurs dont les réflexes seraient ralentis par un taux d'alcoolémie supérieur à la normale requise.  The reconciliation inside the lobe, recorded on an electronic digital data management card is kept in memory for ten seconds, causes the lighting of a panel 2 reflecting 'prohibited direction' located on the mat at height of a seated driver, as well as an audible signal to attract the attention of drivers whose reflexes would be slowed by a higher than normal blood alcohol level required.

Un faisceau F2 de ce radar (A) est orienté vers l'arrière. Un autre radar Identique (B) orienté dans la même direction recoupe les informations déjà fournies par (A). Si le véhicule passe dans le lobe en éloignement, la comparaison des 3 impulsions positives va déclencher un message enregistré  A beam F2 of this radar (A) is oriented towards the rear. Another identical speed camera (B) oriented in the same direction intersects the information already provided by (A). If the vehicle goes into the lobe away, the comparison of the 3 positive pulses will trigger a recorded message

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Figure img00030001

qui sera transmis par un terminal radio GSM (112 en France) dont l'antenne est située en haut du mat 4.
Figure img00030001

which will be transmitted by a GSM radio terminal (112 in France) whose antenna is located at the top of mast 4.

Il est à noter que les faisceaux des radars sont réglables pour tenir compte des courbures et des différentes géométries des bretelles, et qu'une caméra vidéo peut être montée pour enregistrer l'infraction. It should be noted that the radar beams are adjustable to take into account the curvatures and the different geometries of the straps, and that a video camera can be mounted to record the offense.

EXAMENS DES CAS. CASE EXAMINATIONS.

Véhicule dans le sens normal : Il aborde le faisceau arrière de A et celui de B dans le sens du rapprochement et le faisceau avant de A en éloignement : pas de signaux.  Vehicle in the normal direction: It approaches the rear beam of A and that of B in the direction of approach and the front beam of A in distance: no signals.

Véhicule à contresens : Le rapprochement dans le lobe de détection avant de A déclenche le dispositif de prévention. Si le véhicule stoppe avant la prise à contresens de la bretelle d'accès, après un temps t de rémanence, la procédure d'alerte est levée Par contre, si le véhicule dépasse les radars, B détecte l'éloignement, vérifie la fiabilité de l'information de A et lance la procédure d'alerte au centre d'information.  Vehicle in the wrong direction: The approach in the detection lobe before A triggers the prevention device. If the vehicle stops before the opposite ramp is taken, after a period of remanence, the alert procedure is lifted. On the other hand, if the vehicle exceeds the radars, B detects the distance, checks the reliability of A's information and initiates the alert procedure at the information center.

Même en cas de croisement sur la bretelle le système enregistre uniquement le véhicule à contresens.  Even in the event of a crossing on the ramp, the system only registers the vehicle in the wrong direction.

MISE EN UVRE. IMPLEMENTATION.

Selon l'implantation en agglomération (rocade, périphérique) ou en rase campagne, ce système de prévention peut selon le cas être raccordé électriquement au secteur ou alimenté d'une manière autonome par une batterie de 90 A/H rechargée par un panneau solaire situé en haut du mat 3.  Depending on the location in built-up areas (ring road, ring road) or in the open country, this prevention system can, depending on the case, be electrically connected to the mains or powered autonomously by a 90 A / H battery recharged by a solar panel located at the top of the mast 3.

Des contrôles constants de dysfonctionnement des radars, panneau lumineux, batterie sont détectés et les alertes de non fonctionnement sont transmises aux services compétents.  Constant checks of radar, light panel and battery malfunctions are detected and non-operating alerts are sent to the relevant departments.

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AVANTAGES DU SYSTEME. ADVANTAGES OF THE SYSTEM.

-Avertir le conducteur AVANT la prise à contresens en lui évitant de reculer ou de faire demi-tour sur la bretelle, d'où une sécurité accrue pour lui et les autres automobilistes qui circulent normalement.  -Warning the driver BEFORE taking the wrong way, avoiding him to back up or turn around on the ramp, resulting in increased safety for him and other motorists who circulate normally.

-Avertir le conducteur'distrait'qui prendrait un sens giratoire dans le le sens des aiguilles d'une montre.  - Warn the driver that there would be a turning direction clockwise.

-Le système étant autonome, la mise en oeuvre est facilitée et le coût d'installation est réduit en évitant les travaux importants de voirie. -The system being autonomous, the implementation is facilitated and the installation cost is reduced by avoiding important road works.

Claims (4)

REVENDICATIONS 1-Méthode de prévention d'accès à contresens d'une voie à sens unique consistant à disposer sur le coté de cette voie un capteur de type radar DOPPLER implanté à une distance de 5 mètres et fixé à un mat à une hauteur de 3 mètres émettant d'une part un faisceau F1 orienté vers l'aval de la voie susceptible de mesurer la distance de rapprochement avant la prise à contresens de la bretelle, et d'autre part un faisceau F2 orienté vers 1'amont susceptible de mesurer la distance d'éloignement L'Information enregistrée par F1 déclenchant la mise en oeuvre d'un signai lumineux et/ou sonore avertissant un véhicule prêt à emprunter la bretelle à contresens et l'information enregistrée par F2 concordant avec celle de F1 déclenchant une alerte radio.  1-Method for preventing access in the opposite direction to a one-way lane, consisting of placing on the side of this lane a DOPPLER type radar sensor installed at a distance of 5 meters and fixed to a mast at a height of 3 meters emitting on the one hand a beam F1 oriented downstream of the lane capable of measuring the approaching distance before the wrong direction of the ramp, and on the other hand a beam F2 oriented upstream capable of measuring the distance The Information recorded by F1 triggering the implementation of a light and / or audible signal warning a vehicle ready to take the slip road and the information recorded by F2 agreeing with that of F1 triggering a radio alert. 2 - Méthode selon la revendication 1 avec un deuxième radar DOPPLER pour vérifier la fiabilité de l'information F1.  2 - Method according to claim 1 with a second DOPPLER radar to verify the reliability of the information F1. 3-Dispositif selon la revendication 1 composé de 2 radars, d'1 feu lumineux réfléchissant, d'1 coffret numérique comportant 1 carte électronique de gestion des signaux et d'1 système de transmission radio. 3-Device according to claim 1 composed of 2 radars, 1 reflective light, 1 digital box with 1 electronic card for signal management and 1 radio transmission system. 4-Dispositif selon la revendication 2 pour alimenter électriquement le système soit par le secteur ou par capteur solaire.4-Device according to claim 2 for electrically supplying the system either by the sector or by solar collector.
FR0012967A 2000-10-11 2000-10-11 ROAD SAFETY DEVICE FOR PREVENTING A VEHICLE BEFORE UNDERWAY ON A SINGLE-WAY ROAD AND COUPLED TO AN ALERT DEVICE IN THE EVENT THE VEHICLE CONTINUES IN ITS ERROR Expired - Fee Related FR2815157B1 (en)

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FR0012967A FR2815157B1 (en) 2000-10-11 2000-10-11 ROAD SAFETY DEVICE FOR PREVENTING A VEHICLE BEFORE UNDERWAY ON A SINGLE-WAY ROAD AND COUPLED TO AN ALERT DEVICE IN THE EVENT THE VEHICLE CONTINUES IN ITS ERROR

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FR0012967A FR2815157B1 (en) 2000-10-11 2000-10-11 ROAD SAFETY DEVICE FOR PREVENTING A VEHICLE BEFORE UNDERWAY ON A SINGLE-WAY ROAD AND COUPLED TO AN ALERT DEVICE IN THE EVENT THE VEHICLE CONTINUES IN ITS ERROR

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FR2815157B1 FR2815157B1 (en) 2003-01-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20130309A1 (en) * 2013-12-30 2015-07-01 Euro Etp Di Grieco Emilio & C S A S DEVICE FOR DETECTION AND SIGNALING OF VEHICLE CONTROMANO.
WO2017158246A1 (en) * 2016-03-17 2017-09-21 Pieraccini Bruno Device for preventing wrong-way driving

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002337A1 (en) * 1989-01-27 1990-08-02 Strahlen Umweltforsch Gmbh Traffic warning lights with solar power devices - signals when vehicles go down one-way streets in wrong direction
DE29504445U1 (en) * 1995-03-15 1995-05-11 Fischer, Erwin, 83607 Holzkirchen External shutdown of the vehicle ignition or fuel supply
FR2723239A1 (en) * 1994-07-26 1996-02-02 Geay Michel Safety barrier to stop vehicle travelling in wrong direction on one-way road
EP0919815A1 (en) * 1997-11-04 1999-06-02 Car Innovations B.V. Device and system for providing a warning in response to a motorist driving against the traffic

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002337A1 (en) * 1989-01-27 1990-08-02 Strahlen Umweltforsch Gmbh Traffic warning lights with solar power devices - signals when vehicles go down one-way streets in wrong direction
FR2723239A1 (en) * 1994-07-26 1996-02-02 Geay Michel Safety barrier to stop vehicle travelling in wrong direction on one-way road
DE29504445U1 (en) * 1995-03-15 1995-05-11 Fischer, Erwin, 83607 Holzkirchen External shutdown of the vehicle ignition or fuel supply
EP0919815A1 (en) * 1997-11-04 1999-06-02 Car Innovations B.V. Device and system for providing a warning in response to a motorist driving against the traffic

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITFI20130309A1 (en) * 2013-12-30 2015-07-01 Euro Etp Di Grieco Emilio & C S A S DEVICE FOR DETECTION AND SIGNALING OF VEHICLE CONTROMANO.
WO2017158246A1 (en) * 2016-03-17 2017-09-21 Pieraccini Bruno Device for preventing wrong-way driving
FR3049108A1 (en) * 2016-03-17 2017-09-22 Bruno Pieraccini DEVICE FOR PREVENTING A CONTRESENS TRAFFIC

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