EP0242293A1 - Road safety device using sound message emission - Google Patents

Road safety device using sound message emission Download PDF

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Publication number
EP0242293A1
EP0242293A1 EP87400848A EP87400848A EP0242293A1 EP 0242293 A1 EP0242293 A1 EP 0242293A1 EP 87400848 A EP87400848 A EP 87400848A EP 87400848 A EP87400848 A EP 87400848A EP 0242293 A1 EP0242293 A1 EP 0242293A1
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EP
European Patent Office
Prior art keywords
vehicle
infrared radiation
road
sensor
signal
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Granted
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EP87400848A
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German (de)
French (fr)
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EP0242293B1 (en
Inventor
Essacq Baloutch
Jacqueline Baloutch née Lombard
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Individual
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    • 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
    • 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

Definitions

  • the present invention relates to a road safety installation for the emission of audible messages.
  • the installation according to the invention was designed for this purpose and it makes it possible to ensure optimal information for a driver by sound, thanks to a particularly simple combination of means.
  • this road safety installation for emitting sound messages comprises, for each type of traffic sign fixed along a roadway, a device emitting a coded infrared radiation signal corresponding to the type of traffic sign with which it is associated and, on each vehicle traveling on the road, a device receiving the coded infrared radiation signal from the fixed emitting device and transforming it into a clear audio message sent to the driver of the vehicle, the emitting device comprises a current source supplying, via an encoder an emitter of infrared radiation so that the device emits, in the direction of vehicles arriving on the roadway, the coded infrared signal, and a sound level detector or sound sensor which controls a normally open and closed switch, to activate the transmitting device, when the sound sensor perceives the noise emitted by the engine of a vehicle, and the receiving device comprises an infrared radiation sensor which is mounted on the vehicle, at the front thereof, inside or outside, this sensor being connected, to a decoder whose output is connected to a appropriate audio message select
  • the installation according to the invention which is represented schematically as a whole in FIG. 1, comprises, for each type of traffic sign fixed along a roadway, a device 1 emitting an infrared radiation signal coded i corresponding to the type of the traffic sign P with which it is associated and, on each vehicle 2 traveling on the roadway, a device 3 receiving the coded infrared radiation coming from the fixed emitting device 1 and transforming it into a clear audio message sent to the driver of the vehicle.
  • the emitting device 1 is associated with a "STOP" panel and the signal of the coded infrared radiation, once decoded in the receiving device 3, results in the emission of a clear audio message which can be as follows "stopping is compulsory. In case of non-compliance you risk a fine and the withdrawal of the driving license".
  • the emitting device 1 comprises an autonomous current source 4, such as a battery or a solar cell, or else it can still be connected to the power supply sector if the position of the panel is suitable.
  • This current source 4 supplies, via an encoder 5, an infrared radiation emitter 6.
  • the encoder 5 ensures the modulation of the infrared signal emitted by the emitter 6, so that the device 1 emits, in the direction vehicles arriving on the road, the coded infrared signal i which corresponds only to the type of panel P with which the device 1 is associated.
  • the transmitting device 1 further comprises a sound level detector or sound sensor 7 which controls a switch 7a normally open and is closed to turn on the transmitting device 1, when the sound sensor 7 receives the noise emitted by the engine 8 of a vehicle 2.
  • the receiving device 3 comprises an infrared radiation sensor 9 which is mounted on the vehicle, at the front thereof, inside or outside, so as to obtain the best possible reception. It can be preceded by a magnifying glass itself preceded by a red plastic or mineral filter.
  • the infrared radiation sensor 9 is electrically supplied, like the other components of the receiving device 1, by a current source 10 and it is connected, through a filtering circuit 11, to a decoder 12 whose output is connected to a selector 13 of the appropriate audio message.
  • This message selector 13 can be constituted by a cassette recorder or hard disk, LASER voice synthesizer disk on which several sound messages are recorded beforehand corresponding respectively to the different types of traffic signs likely to be encountered during vehicle traffic, each selected message being emitted by a loudspeaker 14.
  • the noise of the vehicle's engine 8 cule is detected by the sound sensor 7 so that the switch 7a closes so as to thereby cause the supply of the infrared radiation emitter 6, via the encoder 5.
  • the emitter 6 transmits the coded infrared signal i which is picked up on the vehicle by the sensor 9.
  • the signal thus captured is transmitted, after filtering 11, to the decoder 12 which identifies the nature of the coded infrared signal i and which consequently controls the message selector 13 so that the latter emits, via the loudspeaker 14, the sound message corresponding to the panel P, in this case the signal "STOP".
  • the driver is then informed of the proximity of such a sign and can react much more easily, even if his attention is then distracted.
  • the emitting device 1 comprises a metal or plastic housing 15, this housing being fixed for example to the post supporting the sign P.
  • the housing 15 contains all the elements of the transmitting device and it has a side door 16 allowing access to these elements for their maintenance or their replacement.
  • a glass plate 17 can possibly be provided, in one of the judiciously exposed walls, to allow the lighting of a solar cell located inside and used as a current generator.
  • the front wall 15a of the housing 15 is turned in the direction of the vehicles arriving at the place where the panel P is located and in this front wall 15a are provided openings in which are mounted grids 18 lined with windows 19 and provided with seals for avoid the penetration of water inside the housing 15.
  • the pairs of grid 18 and glass 19 are placed respectively in an upper opening of the front wall 15a, in front of the infrared radiation emitter 6, and in an opening bottom of this wall, in front of the sound sensor 7.
  • Edges 21, 22 are provided respectively along the upper edge of the anterior wall 15a and in particular upper and lower openings.
  • the upper edge 21 is curved upwards while the lower rim 22 is curved downwards, starting from the front wall 15a.
  • the edges 21 and 22 prevent dirt from clogging the windows 19.
  • the rear wall 15b of the housing is advantageously pierced with holes 23 allowing the passage of screws or bolts 24 for fixing the housing 15 on any suitable support, in particular on the post of the panel P.
  • the infrared radiation emitter 6 can advantageously be mounted on a device 25 making it possible to adjust the direction of the infrared radiation emitted.
  • the installation according to the invention can also comprise, on each vehicle 2, in addition to the receiving device 3 comprising the sensor 9 of coded infrared radiation mounted at the front, a transmitter of coded infrared radiation 26 placed inside the vehicle on the rear windscreen or outside on the rear part of the vehicle.
  • This transmitter 26 which is thus turned towards the following vehicles, can then emit an infrared signal coded i 1 which, after having been picked up by the detector device 3 of a following vehicle 2, causes, in this vehicle, the delivery of a message warning sound for the driver, indicating for example that he is following too closely the previous vehicle and that he risks an accident.
  • the installation may comprise, in addition to the infrared radiation emitter 6 automatically put into service when approaching a vehicle, a second infrared radiation emitter 27 emitting a second coded infrared signal i 2 in an emergency.
  • a second infrared radiation emitter 27 emitting a second coded infrared signal i 2 in an emergency.

Abstract

PCT No. PCT/FR87/00123 Sec. 371 Date Dec. 7, 1987 Sec. 102(e) Date Dec. 7, 1987 PCT Filed Apr. 14, 1987 PCT Pub. No. WO87/06381 PCT Pub. Date Oct. 22, 1987.Road safety installation with emission of sound messages for every type of signalling panel fixed along a road, including a fixed emitter device emitting a coded infrared radiation signal corresponding to the type of signalling panel to which it is associated for every signalling panel along a road and on every vehicle circulating along the road, a receiver device receiving the coded infrared radiation signal (i) delivered by the fixed emitter device on every vehicle and converting the signal into a clear sound message emitted for the attention of the driver of the vehicle; the emitter device feeds an infrared radiation emitter via an encoder, so that the fixed emitter device delivers, in the direction of the vehicles arriving on the road, the coded infrared signal, and a second sensor controlling a normally open switch which is closed in order to start the emitter device in operation, when the sound sensor perceives the noise emitted by the vehicle, and the receiver device comprises an infrared radiation sensor which is mounted on the vehicle, the sensor being connected by a filtering circuit to a decoder of which the output is connected to a selector of the appropriate sound message.

Description

La présente invention concerne une installation de sécurité routière à émission de messages sonores.The present invention relates to a road safety installation for the emission of audible messages.

Lors de la conduite d'un véhicule automobile, le conducteur du véhicule est guidé dans sa conduite par les panneaux de signalisation qui bordent la chaussée. Le con­ducteur est donc astreint à une attention soutenue en ce qui concerne l'observation des panneaux de signalisation et leurs significations, pour avoir une conduite prudente et éviter ainsi au maximum les risques d'accident. Le regard du conducteur doit également se porter de temps à autre sur le compteur de vitesse, pour ne pas dépasser les vitesses limi­tes autorisées, et sur les rétroviseurs pour surveiller le trafic en arrière de son véhicule. Du fait de ces diverses obligations il est évident que les divers panneaux de signa­lisation de danger, de stop, de priorité par exemple, sont souvent négligés pour diverses raisons. Il apparaît donc de la plus haute importance, pour augmenter la sécurité routiè­re, d'avertir le conducteur d'un véhicule automobile d'une situation ou d'un danger déjà matérialisé par l'existence d'un panneau de signalisation fixe.When driving a motor vehicle, the driver of the vehicle is guided in his driving by the road signs which line the road. The driver is therefore required to pay close attention to the observation of traffic signs and their meanings, in order to have a safe drive and thus avoid the risk of accident as much as possible. The driver's gaze should also be directed from time to time on the speedometer, so as not to exceed the authorized speed limits, and on the mirrors to monitor traffic behind his vehicle. Owing to these various obligations, it is obvious that the various danger, stop and priority signs, for example, are often overlooked for various reasons. It therefore appears of the utmost importance, to increase road safety, to warn the driver of a motor vehicle of a situation or danger already materialized by the existence of a fixed road sign.

L'installation suivant l'invention a été conçue dans ce but et elle permet d'assurer une information opti­male d'un conducteur par voie sonore, grâce à une combinai­son de moyens particulièrement simple.The installation according to the invention was designed for this purpose and it makes it possible to ensure optimal information for a driver by sound, thanks to a particularly simple combination of means.

A cet effet cette installation de sécurité routiè­re à émission de messages sonores est caractérisée en ce qu'elle comprend, pour chaque type de panneau de signalisa­tion fixé le long d'une chaussée, un dispositif émettant un signal de rayonnement infrarouge codé correspondant au type de panneau de signalisation auquel il est associé et , sur chaque véhicule circulant sur la chaussée, un dispositif recevant le signal de rayonnement infrarouge codé issu du dispositif émetteur fixe et le transformant en un message sonore en clair émis à l'attention du conducteur du véhicu­le, le dispositif émetteur comporte une source de courant alimentant, par l'intermédiaire d'un codeur un émetteur de rayonnement infrarouge de manière que le dispositif émette, en direction des véhicules arrivant sur la chaussée, le signal infrarouge codé, et un détecteur de niveau sonore ou capteur de son qui commande un interrupteur normalement ouvert et qui est fermé, pour mettre en service le disposi­tif émetteur, lorsque le capteur de son perçoit le bruit émis par le moteur d'un véhicule, et le dispositif récepteur comprend un capteur de rayonnement infrarouge qui est monté sur le véhicule, à l'avant de celui ci, à l'intérieur ou à l'extérieur, ce capteur étant connecté, à un décodeur dont la sortie est reliée à un sélectionneur du message sonore approprié.To this end, this road safety installation for emitting sound messages is characterized in that it comprises, for each type of traffic sign fixed along a roadway, a device emitting a coded infrared radiation signal corresponding to the type of traffic sign with which it is associated and, on each vehicle traveling on the road, a device receiving the coded infrared radiation signal from the fixed emitting device and transforming it into a clear audio message sent to the driver of the vehicle, the emitting device comprises a current source supplying, via an encoder an emitter of infrared radiation so that the device emits, in the direction of vehicles arriving on the roadway, the coded infrared signal, and a sound level detector or sound sensor which controls a normally open and closed switch, to activate the transmitting device, when the sound sensor perceives the noise emitted by the engine of a vehicle, and the receiving device comprises an infrared radiation sensor which is mounted on the vehicle, at the front thereof, inside or outside, this sensor being connected, to a decoder whose output is connected to a appropriate audio message selector.

On décrira ci-après,à titre d'exemple non limitatif, une forme d'exécution de la présente invention,en référence au dessin annexé sur lequel :

  • La figure 1 est un schéma synoptique d'une instal­lation de sécurité routière à émission suivant l'invention.
  • La figure 2 est une vue en perspective d'un émet­teur de rayonnement infrarouge codé utilisé dans l'instal­lation suivant l'invention.
  • La figure 3 est une vue en coupe verticale faite suivant la ligne III-III de la figure 2.
An embodiment of the present invention will be described below, by way of non-limiting example, with reference to the appended drawing in which:
  • FIG. 1 is a block diagram of an emission road safety installation according to the invention.
  • FIG. 2 is a perspective view of a coded infrared radiation emitter used in the installation according to the invention.
  • Figure 3 is a vertical sectional view taken along line III-III of Figure 2.

L'installation suivant l'invention qui est représen­té schématiquement dans son ensemble sur la figure 1, com­prend, pour chaque type de panneau de signalisation fixé le long d'une chaussée, un dispositif 1 émettant un signal de rayonnement infrarouge codé i correspondant au type de panneau de signalisation P auquel il est associé et , sur chaque véhicule 2 circulant sur la chaussée, un dispositif 3 recevant le rayonnement infrarouge codé issu du dispositif émetteur fixe 1 et le transformant en un message sonore en clair émis à l'attention du conducteur du véhicule. Par exemple, dans le cas représenté à titre d'exemple sur la figure 1, le dispositif émetteur 1 est associé à un panneau de "STOP" et le signal du rayonnement infrarouge codé, une fois décodé dans le dispositif récepteur 3, se traduit par l'émission d'un message sonore en clair qui peut être le suivant "l'arrêt est obligatoire. En cas de non respect vous risquez une amende et le retrait du permis de conduire".The installation according to the invention which is represented schematically as a whole in FIG. 1, comprises, for each type of traffic sign fixed along a roadway, a device 1 emitting an infrared radiation signal coded i corresponding to the type of the traffic sign P with which it is associated and, on each vehicle 2 traveling on the roadway, a device 3 receiving the coded infrared radiation coming from the fixed emitting device 1 and transforming it into a clear audio message sent to the driver of the vehicle. For example, in the case shown by way of example in FIG. 1, the emitting device 1 is associated with a "STOP" panel and the signal of the coded infrared radiation, once decoded in the receiving device 3, results in the emission of a clear audio message which can be as follows "stopping is compulsory. In case of non-compliance you risk a fine and the withdrawal of the driving license".

Le dispositif émetteur 1 comporte une source de courant 4 autonome, telle qu'une batterie ou une pile solai­re, ou bien il peut encore être raccordé au secteur d'ali­mentation électrique si la position du panneau s'y prête. Cette source de courant 4 alimente, par l'intermédiaire d'un codeur 5, un émetteur de rayonnement infrarouge 6. Le codeur 5 assure la modulation du signal infrarouge émis par l'émet­teur 6, de manière que le dispositif 1 émette, en direction des véhicules arrivant sur la chaussée, le signal infrarouge codé i qui correspond uniquement au type de panneau P auquel le dispositif 1 est associé.The emitting device 1 comprises an autonomous current source 4, such as a battery or a solar cell, or else it can still be connected to the power supply sector if the position of the panel is suitable. This current source 4 supplies, via an encoder 5, an infrared radiation emitter 6. The encoder 5 ensures the modulation of the infrared signal emitted by the emitter 6, so that the device 1 emits, in the direction vehicles arriving on the road, the coded infrared signal i which corresponds only to the type of panel P with which the device 1 is associated.

Le dispositif émetteur 1 comporte par ailleurs un détecteur de niveau sonore ou capteur de son 7 qui commande un interrupteur 7a normalement ouvert et qui est fermé, pour mettre en service le dispositif émetteur 1, lorsque le capteur de son 7 perçoit le bruit a émis par le moteur 8 d'un véhicule 2.The transmitting device 1 further comprises a sound level detector or sound sensor 7 which controls a switch 7a normally open and is closed to turn on the transmitting device 1, when the sound sensor 7 receives the noise emitted by the engine 8 of a vehicle 2.

Le dispositif récepteur 3 comprend un capteur de rayonnement infrarouge 9 qui est monté sur le véhicule, à l'avant de celui-ci, à l'intérieur ou à l'extérieur, de manière à obtenir la meilleur réception possible. Il peut être précédé d'une loupe elle-même précédée d'un filtre rouge en matière plastique ou minérale. Le capteur de rayon­nement infrarouge 9 est alimenté électriquement, comme les autres composants du dispositif récepteur 1, par une source de courant 10 et il est connecté, à travers un cir­cuit de filtrage 11, à un décodeur 12 dont la sortie est reliée à un sélectionneur 13 du message sonore approprié. Ce sélectionneur de message 13 peut être constitué par un ma­gnétophone à cassette ou disque dur, disque LASER synthéti­seur vocal sur laquelle sont préalablement enregistrés plu­sieurs messages sonores correspondant respectivement aux différents types de panneaux de signalisation susceptibles d'être rencontrés pendant la circulation du véhicule, chaque message sélectionné étant émis par un haut-parleur 14.The receiving device 3 comprises an infrared radiation sensor 9 which is mounted on the vehicle, at the front thereof, inside or outside, so as to obtain the best possible reception. It can be preceded by a magnifying glass itself preceded by a red plastic or mineral filter. The infrared radiation sensor 9 is electrically supplied, like the other components of the receiving device 1, by a current source 10 and it is connected, through a filtering circuit 11, to a decoder 12 whose output is connected to a selector 13 of the appropriate audio message. This message selector 13 can be constituted by a cassette recorder or hard disk, LASER voice synthesizer disk on which several sound messages are recorded beforehand corresponding respectively to the different types of traffic signs likely to be encountered during vehicle traffic, each selected message being emitted by a loudspeaker 14.

Par conséquent, lorsqu'un véhicule approche à une distance prédéterminée d'un panneau de signalisation P équi­pé d'un dispositif émetteur 1, le bruit du moteur 8 du véhi­ cule est détecté par le capteur de son 7 si bien que l'in­terrupteur 7a se ferme de manière à provoquer ainsi l'ali­mentation de l'émetteur de rayonnement infrarouge 6, par l'intermédiaire du codeur 5. L'émetteur 6 émet alors le signal infrarouge codé i qui est capté, sur le véhicule, par le capteur 9. Le signal ainsi capté est transmis, après filtrage 11, au décodeur 12 qui identifie la nature du si­gnal infrarouge codé i et qui commande en conséquence le sélectionneur de messages 13 pour que celui-ci émette, par l'intermédiaire du haut-parleur 14, le message sonore cor­respondant au panneau P, en l'occurrence au signal "STOP". Le conducteur est alors informé de la proximité d'un tel panneau et il peut réagir beaucoup plus facilement, même si son attention se trouve alors distraite.Consequently, when a vehicle approaches at a predetermined distance from a traffic sign P equipped with a transmitter device 1, the noise of the vehicle's engine 8 cule is detected by the sound sensor 7 so that the switch 7a closes so as to thereby cause the supply of the infrared radiation emitter 6, via the encoder 5. The emitter 6 then transmits the coded infrared signal i which is picked up on the vehicle by the sensor 9. The signal thus captured is transmitted, after filtering 11, to the decoder 12 which identifies the nature of the coded infrared signal i and which consequently controls the message selector 13 so that the latter emits, via the loudspeaker 14, the sound message corresponding to the panel P, in this case the signal "STOP". The driver is then informed of the proximity of such a sign and can react much more easily, even if his attention is then distracted.

Comme on peut mieux le voir sur les figures 2 et 3 le dispositif émetteur 1 comprend un boîtier métallique ou en matière plastique 15, ce boîtier étant fixé par exemple au poteau supportant le panneau de signalisation P . Le boîtier 15 contient tous les éléments du dispositif émetteur et il comporte une porte latérale 16 permettant d'avoir accès à ces éléments pour leur entretien ou leur remplace­ment. Une plaque de verre 17 peut être éventuellement pré­vue, dans l'une des parois judicieusement exposée, pour permettre l'éclairage d'une pile solaire située à l'inté­rieur et utilisée comme générateur de courant. La paroi antérieure 15a du boîtier 15 est tournée en direction des véhicules arrivant à l'endroit où se trouve le panneau P et dans cette paroi antérieure 15a sont prévues des ouvertures dans lesquelles sont montées des grilles 18 doublées de vitres 19 et pourvues de joints pour éviter la pénétration de l'eau à l'intérieur du boîtier 15. Les paires de grille 18 et de vitre 19 sont placées respectivement dans une ou­verture supérieure de la paroi antérieure 15a, devant l'é­metteur de rayonnement infrarouge 6, et dans une ouverture inférieure de cette paroi, devant le capteur de son 7. Des rebords 21,22 sont prévus respectivement le long de l'arête supérieure de la paroi antérieure 15a et notamment des ou­vertures supérieure et inférieure . Le rebord supérieur 21 est incurvé vers le haut tandis que le rebord inférieure 22 est incurvé vers le bas, en partant de la paroi antérieure 15a. Les rebords 21 et 22 évitent que des saletés ne vien­nent encrasser les vitres 19.As can best be seen in FIGS. 2 and 3, the emitting device 1 comprises a metal or plastic housing 15, this housing being fixed for example to the post supporting the sign P. The housing 15 contains all the elements of the transmitting device and it has a side door 16 allowing access to these elements for their maintenance or their replacement. A glass plate 17 can possibly be provided, in one of the judiciously exposed walls, to allow the lighting of a solar cell located inside and used as a current generator. The front wall 15a of the housing 15 is turned in the direction of the vehicles arriving at the place where the panel P is located and in this front wall 15a are provided openings in which are mounted grids 18 lined with windows 19 and provided with seals for avoid the penetration of water inside the housing 15. The pairs of grid 18 and glass 19 are placed respectively in an upper opening of the front wall 15a, in front of the infrared radiation emitter 6, and in an opening bottom of this wall, in front of the sound sensor 7. Edges 21, 22 are provided respectively along the upper edge of the anterior wall 15a and in particular upper and lower openings. The upper edge 21 is curved upwards while the lower rim 22 is curved downwards, starting from the front wall 15a. The edges 21 and 22 prevent dirt from clogging the windows 19.

La paroi postérieure 15b du boîtier est avantageuse­ment percée de trous 23 permettant le passage de vis ou de boulons 24 pour la fixation du boîtier 15 sur tout support approprié, notamment sur le poteau du panneau P.The rear wall 15b of the housing is advantageously pierced with holes 23 allowing the passage of screws or bolts 24 for fixing the housing 15 on any suitable support, in particular on the post of the panel P.

Comme il est représenté schématiquement sur la fi­gure 3, l'émetteur de rayonnement infrarouge 6 peut être avantageusement monté sur un dispositif 25 permettant de régler la direction du rayonnement infrarouge émis.As shown diagrammatically in FIG. 3, the infrared radiation emitter 6 can advantageously be mounted on a device 25 making it possible to adjust the direction of the infrared radiation emitted.

L'installation suivant l'invention peut également comporter, sur chaque véhicule 2, en plus du dispositif récepteur 3 comprenant le capteur 9 de rayonnement infrarou­ge codé monté à l'avant, un émetteur de rayonnement infra­rouge codé 26 placé à l'intérieur du véhicule sur le pare­brise arrière ou à l'extérieur sur la partie arrière du véhicule. Cet émetteur 26 qui est ainsi tourné vers les véhicules suivants, peut alors émettre un signal infrarouge codé i1 qui, après avoir été capté par le dispositif détec­teur 3 d'un véhicule 2 suivant, entraîne, dans ce véhicule la délivrance d'un message sonore de prudence pour le con­ducteur, en lui indiquant par exemple qu'il suit de trop près le véhicule précédent et qu'il risque un accident.The installation according to the invention can also comprise, on each vehicle 2, in addition to the receiving device 3 comprising the sensor 9 of coded infrared radiation mounted at the front, a transmitter of coded infrared radiation 26 placed inside the vehicle on the rear windscreen or outside on the rear part of the vehicle. This transmitter 26 which is thus turned towards the following vehicles, can then emit an infrared signal coded i 1 which, after having been picked up by the detector device 3 of a following vehicle 2, causes, in this vehicle, the delivery of a message warning sound for the driver, indicating for example that he is following too closely the previous vehicle and that he risks an accident.

Suivant une autre variante d'exécution l'installa­tion peut comporter, en plus de l'émetteur de rayonnement infrarouge 6 mis automatiquement en service lors de l'appro­che d'un véhicule, un second émetteur de rayonnement infra­rouge 27 émettant un second signal infrarouge codé i2 en cas d'urgence. Dans un tel cas, par exemple lorsque les condi­tions de la circulation exigent que les conducteurs des véhicules soit avertis, la mise en route du second émetteur 27 est alors commandée manuellement, ou par téléphone, ou d'autres moyens suivant les nécessités.According to another alternative embodiment, the installation may comprise, in addition to the infrared radiation emitter 6 automatically put into service when approaching a vehicle, a second infrared radiation emitter 27 emitting a second coded infrared signal i 2 in an emergency. In such a case, for example when traffic conditions require the drivers of the vehicles to be notified, the start-up of the second transmitter 27 is then controlled manually, or by telephone, or other means as required.

On peut également prévoir d'utiliser à volonté un seul et même émetteur de rayonnement infrarouge pour émettre soit le signal normal i associé au panneau P, soit le si­gnal codé spécial i2 pour indiquer une situation d'urgen­ce.One can also plan to use at will a single infrared emitter to emit either the normal signal i associated with the panel P, or the special coded signal i2 to indicate an emergency situation.

Claims (8)

1.- Installation de sécurité routière à émission de messages sonores caractérisée en ce qu'elle comprend, pour chaque type de panneau de signalisation fixé le long d'une chaussée, un dispositif (1) émettant un signal de rayonne­ment infrarouge codé (i) correspondant au type de panneau de signalisation (P) auquel il est associé et , sur chaque véhicule (2) circulant sur la chaussée, un dispositif (3) recevant le signal de rayonnement infrarouge codé (i) issu du dispositif émetteur fixe (1) et le transformant en un message sonore en clair émis à l'attention du conducteur du véhicule, le dispositif émetteur (1) comporte une source de courant (4) alimentant, par l'intermédiaire d'un codeur (5), un émetteur de rayonnement infrarouge (6) de manière que le dispositif (1) émette, en direction des véhicules arrivant sur la chaussée, le signal infrarouge codé (i), et un détecteur de niveau sonore ou capteur de son (7) qui commande un interrupteur (7a) normalement ouvert et qui est fermé, pour mettre en service le dispositif émetteur (1), lorsque le capteur de son (7) perçoit le bruit (a) émis par le moteur (8) d'un véhicule (2), et le dispositif ré­cepteur (3) comprend un capteur de rayonnement infrarouge (9) qui est monté sur le véhicule, à l'avant de celui-ci, à l'intérieur ou à l'extérieur, ce capteur étant connecté, à travers un circuit de filtrage 11 à un décodeur (12) dont la sortie est reliée à un sélectionneur (13) du mes­sage sonore approprié.1.- Road safety installation with emission of sound messages characterized in that it comprises, for each type of road sign fixed along a roadway, a device (1) emitting a coded infrared radiation signal ( i ) corresponding to the type of traffic sign (P) with which it is associated and, on each vehicle (2) traveling on the road, a device (3) receiving the coded infrared radiation signal ( i ) from the fixed emitting device (1) and transforming it into a clear audio message sent to the driver of the vehicle, the transmitter device (1) comprises a current source (4) supplying, via an encoder (5), a transmitter of infrared radiation (6) so that the device (1) emits, in the direction of vehicles arriving on the road, the coded infrared signal ( i ), and a sound level detector or sound sensor (7) which controls a switch ( 7a) normally open and which is closed, in. ur put into service the transmitter device (1), when the sound sensor (7) perceives the noise ( a ) emitted by the engine (8) of a vehicle (2), and the receiver device (3) comprises a sensor infrared radiation (9) which is mounted on the vehicle, at the front thereof, inside or outside, this sensor being connected, through a filtering circuit 11 to a decoder (12) the output of which is connected to a selector (13) of the appropriate audible message. 2.- Installation suivant la revendication 1 carac­térisée en ce que le dispositif émetteur (1) comprend un boîtier (15) métallique ou en matière plastique, dont la paroi antérieure (15a) est tournée en direction des véhicu­les arrivant à l'endroit où se trouve le panneau (P) et dans cette paroi antérieure (15a) sont prévues des ouvertu­res dans lesquelles sont montées des grilles (18) doublées de vitres (19) et pourvues de joints pour éviter la péné­tration de l'eau à l'intérieur du boîtier (15).2.- Installation according to claim 1 characterized in that the emitting device (1) comprises a housing (15) metal or plastic, the front wall (15a) is facing towards vehicles arriving at the place where finds the panel (P) and in this front wall (15a) are provided openings in which are mounted grids (18) lined with windows (19) and provided with seals to prevent the penetration of water inside the housing (15). 3.- Installation suivant la revendication 2 carac­térisée en ce que les paires de grille (18) et de vitre (19) sont placées respectivement dans une ouverture supé­rieure de la paroi antérieure (15a), devant l'émetteur de rayonnement infrarouge (6), et dans une ouverture inférieu­re de cette paroi, devant le capteur de son (7).3.- Installation according to claim 2 characterized in that the pairs of grid (18) and glass (19) are respectively placed in an upper opening of the front wall (15a), in front of the infrared radiation emitter (6) , and in a lower opening of this wall, in front of the sound sensor (7). 4.- Installation suivant la revendication 3 carac­térisée en ce que des rebords (21,22) sont prévus respecti­vement le long de l'arête supérieure de la paroi antérieure (15a) et notamment des ouvertures supérieure et inférieu­re.4.- Installation according to claim 3 characterized in that flanges (21,22) are provided respectively along the upper edge of the front wall (15a) and in particular upper and lower openings. 5.- Installation suivant la revendication 4 carac­térisée en ce que le rebord supérieur (21) est incurvé vers le haut tandis que le rebord inférieur (22) est incurvé vers le bas, en partant de la paroi antérieure (15a).5.- Installation according to claim 4 characterized in that the upper flange (21) is curved upwards while the lower flange (22) is curved downwards, starting from the front wall (15a). 6.- Installation suivant l'une quelconque des re­vendications 2 à 6 caractérisée en ce que l'émetteur de rayonnement infrarouge (6) est monté sur un dispositif (25) permettant de régler la direction du rayonnement infrarouge émis.6.- Installation according to any one of claims 2 to 6 characterized in that the infrared radiation emitter (6) is mounted on a device (25) for adjusting the direction of the infrared radiation emitted. 7.- Installation suivant l'une quelconque des re­vendications précédentes caractérisée en ce que le dispo­sitif émetteur (1) comporte des moyens pour émettre sélecti­vement un second signal infrarouge codé (i2), dans les situations d'urgence, indépendamment du premier signal in­frarouge codé (i) associé à chaque panneau.7.- Installation according to any one of the preceding claims, characterized in that the transmitter device (1) comprises means for selectively transmitting a second coded infrared signal (i2), in emergency situations, independently of the first coded infrared signal (i) associated with each panel. 8.- Installation suivant l'une quelconque des re­vendications précédentes caractérisée en ce qu'à l'arrière de chaque véhicule est monté un émetteur (26) d'un signal infrarouge codé (i1) dirigé vers l'arrière.8.- Installation according to any one of the preceding claims, characterized in that at the rear of each vehicle is mounted a transmitter (26) of a coded infrared signal ( i1 ) directed towards the rear.
EP87400848A 1986-04-14 1987-04-14 Road safety device using sound message emission Expired - Lifetime EP0242293B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87400848T ATE66081T1 (en) 1986-04-14 1987-04-14 ROAD SAFETY DEVICE FOR THE EMISSION OF SOUND MESSAGES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8605558 1986-04-14
FR8605558A FR2597241B1 (en) 1986-04-14 1986-04-14 ROAD SAFETY IN A VEHICLE THANKS TO INFRARED SPOKES (SERVE)

Publications (2)

Publication Number Publication Date
EP0242293A1 true EP0242293A1 (en) 1987-10-21
EP0242293B1 EP0242293B1 (en) 1991-08-07

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ID=9334352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87400848A Expired - Lifetime EP0242293B1 (en) 1986-04-14 1987-04-14 Road safety device using sound message emission

Country Status (7)

Country Link
US (1) US4816827A (en)
EP (1) EP0242293B1 (en)
JP (1) JP2509269B2 (en)
AT (1) ATE66081T1 (en)
DE (1) DE3771907D1 (en)
FR (1) FR2597241B1 (en)
WO (1) WO1987006381A1 (en)

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CH682267A5 (en) * 1991-06-06 1993-08-13 Hanspeter Coufal Traffic safety device for restricting vehicle speed - uses roadside transmitter to transmit speed limit signal to onboard receiver for controlling warning display
GB2291995A (en) * 1994-08-05 1996-02-07 Friedrich Theodor Meuschke Audio/visual warning system
EP0845766A2 (en) * 1996-12-02 1998-06-03 MAN Technologie AG Method of informing passengers in a traffic system and associated information system
DE19753511A1 (en) * 1997-12-03 1999-06-10 Zlatko Veber Warning detection method for road traffic
GB2363235A (en) * 2001-07-11 2001-12-12 John Alexander Scott Signal display in train drivers cab

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GB2265041A (en) * 1992-03-13 1993-09-15 Ronald Mark Henderson Infra-red route and hazard system
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US5952941A (en) * 1998-02-20 1999-09-14 I0 Limited Partnership, L.L.P. Satellite traffic control and ticketing system
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US7535404B2 (en) * 1999-11-25 2009-05-19 Nigel Corrigan Airport safety system
CA2392627A1 (en) 1999-11-25 2001-05-31 Nigel Corrigan Aircraft location system for airports
US6262673B1 (en) 2000-05-30 2001-07-17 Charleen L. Kalina Roadway warning system
FR2827416A1 (en) * 2001-07-10 2003-01-17 Jean Paul Begouen Voice warning to car drivers as they approach hazardous or controlled location, uses light from car to trigger delivery of coded radio signal indicating nature of risk at a location, and receiver in car to translate code to audible warning
GB2374188B (en) * 2001-07-11 2003-10-29 John Alexander Scott J.A Scotts Train drivers safety signal display
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Also Published As

Publication number Publication date
ATE66081T1 (en) 1991-08-15
US4816827A (en) 1989-03-28
DE3771907D1 (en) 1991-09-12
WO1987006381A1 (en) 1987-10-22
JPH01500862A (en) 1989-03-23
FR2597241A1 (en) 1987-10-16
FR2597241B1 (en) 1988-09-09
JP2509269B2 (en) 1996-06-19
EP0242293B1 (en) 1991-08-07

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