WO2006125894A1 - Communication device between the towed part and the towing part of a vehicle, designed in particular for trucks - Google Patents

Communication device between the towed part and the towing part of a vehicle, designed in particular for trucks Download PDF

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Publication number
WO2006125894A1
WO2006125894A1 PCT/FR2006/001135 FR2006001135W WO2006125894A1 WO 2006125894 A1 WO2006125894 A1 WO 2006125894A1 FR 2006001135 W FR2006001135 W FR 2006001135W WO 2006125894 A1 WO2006125894 A1 WO 2006125894A1
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Prior art keywords
communication system
transmitter
sensor
receiver
towed
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PCT/FR2006/001135
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French (fr)
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WO2006125894B1 (en
Inventor
Olivier Le Strat
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Ijinus
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Publication of WO2006125894A1 publication Critical patent/WO2006125894A1/en
Publication of WO2006125894B1 publication Critical patent/WO2006125894B1/en

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    • H04B5/73—
    • H04B5/48—

Definitions

  • the present invention relates to a communication device between the towed portion and the towing portion of a vehicle, particularly for trucks.
  • patent EP 1 273 478 describes a system for facilitating parking for trucks or caravans.
  • This communication system between the trailer and the cabin for a truck, or the caravan and the car, depending on the type of vehicle, consists of a detector sending a signal in the presence of an obstacle to an information carrier. These two elements communicate through a medium range radio system.
  • US Pat. No. 6,845,851 describes a control device for braking a towed vehicle. During the braking of the towing vehicle, a control mechanism arranged on the towed vehicle is triggered so that sensors, detecting the first braking movement, transmit a message to the driver via a wireless system, operating with a medium range radio system.
  • the invention proposes to overcome these various disadvantages by means of a device for connecting a towing vehicle and a towed vehicle, such as a truck and its trailer, or an automobile with a caravan, via a wireless system, for transmitting information between the towed portion and the tracting portion reliably, especially in case of offset of the axis of the antennas.
  • the subject of the present invention is a two-way and half-duplex wireless communication system between the towed part of a vehicle and the towing part of the same vehicle, consisting of at least one sensor in the part towed vehicle transmitting its data to a transmitter, then to a receiver and a display, characterized in that the communication between the towed part and the drawing part is performed by magnetic induction, the transmitter and the receiver being spaced a distance from zero to one meter fifty, and can be shifted relative to each other.
  • FIG. 1 is a representation of the system according to the invention applied to a particular example, a semi-trailer truck
  • - Figure 2 is a representation of the system applied to a truck carrying a trailer
  • Figure 3 is a schematic representation of the information transmission system between the various elements of the vehicle on which it is embedded
  • Figure 4 is a detailed schematic representation of the information transmission system.
  • the system according to the invention consists of four distinct elements: a measurement system 1, a transmitter 2, a receiver 3 and a display 4. Each of these elements is linked to the other by a wireless system.
  • the measurement system 1 performs an evaluation of a given parameter. This evaluation passes through the transmitter 2, which transmits the information to the receiver 3 which will display the result via the display 4.
  • This transfer of information from the Trailed part, namely the trailer or the caravan, to the tracting part, that is to say the cabin or the car, is made by a magnetic induction mechanism, thus avoiding any interference, unlike radio waves.
  • the transfer of information is both bi-directional, that is to say that it can be realized from the transmitter 2 to the receiver 3, and vice versa, and half-duplex, namely that the transfer can not be done simultaneously in both directions.
  • the transmitter 2 and the receiver 3 may be spaced from a distance of zero to one meter fifty, and may have a position offset with respect to each other.
  • the antennas of these two elements are not necessarily in the same axis, and admit an offset of an angle of approximately 75 °. This offset ensures continuity of communication, even when the tractor / trailer combination initiates a turning maneuver, such as in a turn, or a dock approach maneuver.
  • the transmitter 2 may be provided with a bi or tri-axial antenna so as to ensure a 360 ° communication around the receiver 3.
  • the sensor 1 and the transmitter 2 integrate a variable gain amplification stage so as to avoid saturation of the amplifier when two transmitters are arranged in proximity. This makes it possible to accept variations in distance between the fixed transmitter and the mobile transmitter.
  • the measurement system 1 may vary according to the needs of its user. It consists mainly of sensors intended to measure a defined parameter. It can, for example, measure the temperature inside the trailer.
  • This example is particularly intended for refrigerated trucks in which a sudden change in temperature can inform the driver of a technical problem of the refrigeration unit.
  • Several temperature measurements can be simultaneously performed, for example at the front and rear of the trailer.
  • the measuring system 1 may also consist of sensors arranged at the doors so as to note the opening or closing of the trailer door, thus making it possible to note a possible break-in or a failure to close the door.
  • the measurement can also consist of a sensor making it possible to detect abnormal gas levels, such as CO 2 . In this case, if the CO 2 level is particularly high, it may reveal the presence of living beings in the trailer, and more particularly the presence of illegal immigrants.
  • the measuring system 1 can also measure the pressure inside a container, in the case of particular packages.
  • the measurement may also consist of a reversing radar for guiding the rear of the vehicle, namely a trailer or caravan, for example, with respect to the loading dock or another type of obstacle.
  • This radar is usually in the form of a sound.
  • This reversing radar consists in measuring the distance between the towed portion 5 and an obstacle or a loading dock.
  • the measuring system 1 can combine all these types of sensors, and even provide other types of alarm depending on the needs of the user and also depending on the type of vehicle on which it is embedded.
  • the examples are not limiting and may vary depending on the type of vehicle on which the system according to the invention is embedded.
  • the information measured by the sensors is then transmitted to the transmitter 2. They can be directly transmitted to the receiver or stored and recorded according to the chosen mode.
  • the transmitter 2 is provided with connection systems 21 for connection with eight sensors, four of which may be intended for temperature measurement.
  • the transmitter 2 also comprises a "CAN bus" system, or any other computer-based wireless communication medium in networks between adapted vehicles. It may also consist of different media for storing, recording or processing the data transmitted by the sensors.
  • These media can be data loggers or any other type of data storage interface.
  • This data-logger can retransmit the data measured by the sensors, especially the temperatures, or record this information.
  • the record can have up to 120,000 values.
  • the data recorded on the data logger can be transmitted on request with the appropriate equipment, or transmitted via a Bluetooth system where the data will be transmitted to a server.
  • the data-logger will preferably be equipped with an automatic draining system.
  • the transmitter can also be equipped with expansion modules such as Bluetooth, GPS, GSM or Wifi (registered names) to ensure data recording and transfer for local or international coverage.
  • expansion modules such as Bluetooth, GPS, GSM or Wifi (registered names) to ensure data recording and transfer for local or international coverage.
  • the Bluetooth system provides a connection between different wireless elements over a short range, ie about ten meters. This system allows the backup, and the transfer of the data measured by the sensors to a local server. It will mainly be used for information on temperatures as long as they can determine a good respect of the storage conditions.
  • the GSM system is an equivalent of the Bluetooth system, which however differs in scope. It allows the recording and transfer of sensor-measured data on an international scale.
  • the GPS system makes it possible to locate the transmitter 2 and consequently the truck associated with it.
  • the combination of the two GPS and GSM systems makes it possible both to locate the truck and to follow the measurement of the information measured by the sensors.
  • the transmitter 2 also includes a power source, ensuring its operation.
  • the information received by the sensors of the measuring system 1 is relayed from the trailer to the truck cab via the transmitter 2.
  • the latter presents an automatic system for recognizing the sensors and operates with a short-range radio system or with a system magnetic induction.
  • the data measured by the sensors are transmitted to the user at the receiver 3 displaying the data on the display 3, these two elements being arranged in the truck cab or inside the vehicle.
  • a field detector is integrated in the transmitter 2, so as to wake the receiver 3 only when information must be transmitted, in order to save the electrical energy of the communication system according to the invention. All the information measured by the sensors is transmitted to the driver of the vehicle, but they can also pass to an operator via a network.
  • This network may consist of a PALM system interacting with the Bluetooth system arranged on the trailer transmitter. This system provides direct access to Bluetoooth system data from the transmitter.
  • the logistics can be a Bluetooth terminal which will ensure the unloading of the Bluetooth system of the transmitter 2.
  • These data transit to a server which will centralize this information and possibly generate an alert system for the driver of the truck in case of anomaly of the transmitted data.
  • This alert system is manifested by an SMS sent to the driver via a mobile phone.
  • the data measured by the sensor is recorded by a GSM system, they pass directly to a server where they can be read by an operator who will eventually activate an alert system in case of alarming data.
  • This system as described is particularly suitable for the field of transport, especially for trucks, in that it is simple to install and does not require automatic adjustment at each trailer change. Its installation does not require any particular installation and is done wirelessly.
  • the display ensuring the reception of several types of information, with a single interface, allows the user to quickly obtain all the data he wants, without having a complex or cumbersome material.
  • the recording of the data in particular concerning the temperature reading inside the refrigerated trailer, makes it possible to follow the storage conditions of the foodstuffs, and thus a follow-up of the traceability.
  • the system according to the invention provides transport security in that the driver has direct access to the data measured by the sensors or this information is transmitted via a server, so that it is alerted in case of data abnormal.
  • the invention has been described particularly for a trailer and its truck, but can equally well apply to a caravan and a car, or to a truck with several trailers, as a non-limiting example. It can also be applied to any mobile device consisting of at least two distinct elements.
  • the system according to the invention also allows a trailer change with respect to the cab without changing the measuring device, the recognition being automatic between the towed part and the towing part.

Abstract

The invention concerns a wireless two-way and half-duplex communication system between the towed part (5) of a vehicle and the towing part (6) of the same vehicle, consisting of at least one sensor (1) in the towed part transmitting its data to a transmitter (2), then to a receiver (3) and a display (4). The invention is characterized in that the communication between the towed part (5) and the towing part (6) is performed by magnetic induction, the transmitter (2) and the receiver (3) capable of being spaced apart by a distance ranging from zero to one meter fifty, and capable of being offset relative to each other.

Description

DISPOSITIF DE COMMUNICATION ENTRE LA PARTIE TRACTEE ET LA PARTIE TRACTANTE D'UN VEHICULE, DESTINE NOTAMMENT AUX COMMUNICATION DEVICE BETWEEN THE TRACTED PART AND THE TRACTIVE PART OF A VEHICLE, INTENDED IN PARTICULAR TO
CAMIONSTRUCKS
La présente invention concerne un dispositif de communication entre la partie tractée et la partie tractante d'un véhicule, destiné notamment aux camions.The present invention relates to a communication device between the towed portion and the towing portion of a vehicle, particularly for trucks.
Les chauffeurs de véhicules longs, tels que les camions ou les voitures tractant une caravane ou une remorque, rencontrent des difficultés fréquentes pour se garer ou pour manoeuvrer, notamment en marche arrière, du fait du manque de visibilité et de l'encombrement du véhicule.Drivers of long vehicles, such as trucks or cars towing a caravan or trailer, encounter frequent difficulties to park or to maneuver, especially in reverse, due to lack of visibility and the size of the vehicle.
De plus, concernant notamment les camions de transport, certains paramètres doivent être contrôlés et respectés, tels que la température dans des camions frigorifiques, ou l'ouverture des portes par exemple. Des systèmes d'aide à la manœuvre ou de contrôle de certains paramètres sont connus dans l'art antérieur.In addition, concerning in particular the transport trucks, certain parameters must be controlled and respected, such as the temperature in refrigerated trucks, or the opening of the doors for example. Maneuvering systems or control of certain parameters are known in the prior art.
Ainsi, le brevet EP 1 273 478 décrit un système destiné à faciliter le stationnement pour les camions ou les caravanes. Ce système de communication entre la remorque et la cabine pour un camion, ou la caravane et la voiture, selon le type de véhicule, est constitué d'un détecteur envoyant un signal en présence d'un obstacle vers un support d'informations. Ces deux éléments communiquent par un système radio de moyenne portée.Thus, patent EP 1 273 478 describes a system for facilitating parking for trucks or caravans. This communication system between the trailer and the cabin for a truck, or the caravan and the car, depending on the type of vehicle, consists of a detector sending a signal in the presence of an obstacle to an information carrier. These two elements communicate through a medium range radio system.
Le brevet US 6 845 851 décrit un dispositif de contrôle pour le freinage d'un véhicule tracté. Lors du freinage du véhicule tractant, un mécanisme de contrôle disposé sur le véhicule tracté se déclenche de manière à ce que des capteurs, détectant le premier mouvement de freinage, transmettent un message au conducteur par l'intermédiaire d'un système sans fil, fonctionnant avec un système radio de moyenne portée.US Pat. No. 6,845,851 describes a control device for braking a towed vehicle. During the braking of the towing vehicle, a control mechanism arranged on the towed vehicle is triggered so that sensors, detecting the first braking movement, transmit a message to the driver via a wireless system, operating with a medium range radio system.
Ces différents dispositifs utilisent un système sans fil, et par conséquent facile à mettre en oeuvre, limitant ainsi les branchements entre les deux éléments du véhicule. Cependant, la transmission d'informations peut créer des interférences, et donc un manque de fiabilité, entre différents camions s'ils ne disposent pas d'un système de reconnaissance, empêchant ainsi d'interchanger la cabine du camion avec sa remorqueThese different devices use a wireless system, and therefore easy to implement, thus limiting the connections between the two elements of the vehicle. However, the transmission of information can create interferences, and thus a lack of reliability, between different trucks if they do not have a recognition system, thus preventing to interchange the cabin of the truck with its trailer
L'invention se propose de remédier à ces divers inconvénients au moyen d'un dispositif permettant de relier un véhicule tractant et un véhicule tracté, tel qu'un camion et sa remorque, ou une automobile avec une caravane, via un système sans fil, permettant de transmettre des informations entre la partie tractée et la partie tractante de façon fiable, notamment en cas de décalage de l'axe des antennes. A cet effet, la présente invention a pour objet un système de communication bi-directionnelle et half-duplex sans fil entre la partie tractée d'un véhicule et la partie tractante de ce même véhicule, constitué d'au moins un capteur dans la partie tractée transmettant ses données à un émetteur, puis à un récepteur et un afficheur, caractérisé en ce que la communication entre la partie tractée et la partie tractante est réalisée par induction magnétique, l'émetteur et le récepteur pouvant être espacés d'une distance allant de zéro à un mètre cinquante, et pouvant être décalés l'un par rapport à l'autre.The invention proposes to overcome these various disadvantages by means of a device for connecting a towing vehicle and a towed vehicle, such as a truck and its trailer, or an automobile with a caravan, via a wireless system, for transmitting information between the towed portion and the tracting portion reliably, especially in case of offset of the axis of the antennas. To this end, the subject of the present invention is a two-way and half-duplex wireless communication system between the towed part of a vehicle and the towing part of the same vehicle, consisting of at least one sensor in the part towed vehicle transmitting its data to a transmitter, then to a receiver and a display, characterized in that the communication between the towed part and the drawing part is performed by magnetic induction, the transmitter and the receiver being spaced a distance from zero to one meter fifty, and can be shifted relative to each other.
On comprendra mieux l'invention en référence aux dessins annexés sur lesquels : - la figure 1 est une représentation du système selon l'invention appliqué à un exemple particulier, un camion semi-remorque ; - la figure 2 est une représentation du système appliqué à un camion porteur équipé d'une remorque ; la figure 3 est une représentation schématique du système de transmission des informations entre les différents éléments du véhicule sur lequel il est embarqué ; la figure 4 est une représentation schématique détaillée du système de transmission des informations.The invention will be better understood with reference to the accompanying drawings in which: - Figure 1 is a representation of the system according to the invention applied to a particular example, a semi-trailer truck; - Figure 2 is a representation of the system applied to a truck carrying a trailer; Figure 3 is a schematic representation of the information transmission system between the various elements of the vehicle on which it is embedded; Figure 4 is a detailed schematic representation of the information transmission system.
Le système selon l'invention est constitué de quatre éléments distincts : un système de mesure 1 , un émetteur 2, un récepteur 3 et un afficheur 4. Chacun de ces éléments est lié à l'autre par un système sans fil.The system according to the invention consists of four distinct elements: a measurement system 1, a transmitter 2, a receiver 3 and a display 4. Each of these elements is linked to the other by a wireless system.
Le système de mesure 1 effectue une évaluation d'un paramètre donné. Cette évaluation transite par l'émetteur 2, qui transmet l'information au récepteur 3 qui va afficher le résultat via l'afficheur 4. Ce transfert d'informations de la partie tractée, à savoir la remorque ou la caravane, à la partie tractante, c'est-à- dire la cabine ou la voiture, est réalisé par un mécanisme d'induction magnétique, évitant ainsi toute interférence, contrairement aux ondes radio.The measurement system 1 performs an evaluation of a given parameter. This evaluation passes through the transmitter 2, which transmits the information to the receiver 3 which will display the result via the display 4. This transfer of information from the Trailed part, namely the trailer or the caravan, to the tracting part, that is to say the cabin or the car, is made by a magnetic induction mechanism, thus avoiding any interference, unlike radio waves.
Le transfert d'informations est à la fois bi-directionnelle, c'est-à-dire qu'il peut être réalisé de l'émetteur 2 vers le récepteur 3, et vice-versa, et half-duplex, à savoir que le transfert ne peut pas être réalisé simultanément dans les deux sens.The transfer of information is both bi-directional, that is to say that it can be realized from the transmitter 2 to the receiver 3, and vice versa, and half-duplex, namely that the transfer can not be done simultaneously in both directions.
L'émetteur 2 et le récepteur 3 peuvent être espacés d'une distance de zéro à un mètre cinquante, et peuvent présenter une position décalée l'un par rapport à l'autre. Ainsi, les antennes de ces deux éléments ne sont pas nécessairement dans le même axe, et admettent un décalage d'un angle de 75° approximativement. Ce décalage garantit une continuité de la communication, même lorsque l'ensemble tracteur/remorque amorce une manœuvre de rotation, comme dans un virage, ou une manœuvre d'approche de quai. L'émetteur 2 peut être muni d'une antenne bi ou tri-axiale de manière à assurer une communication sur 360° autour du récepteur 3.The transmitter 2 and the receiver 3 may be spaced from a distance of zero to one meter fifty, and may have a position offset with respect to each other. Thus, the antennas of these two elements are not necessarily in the same axis, and admit an offset of an angle of approximately 75 °. This offset ensures continuity of communication, even when the tractor / trailer combination initiates a turning maneuver, such as in a turn, or a dock approach maneuver. The transmitter 2 may be provided with a bi or tri-axial antenna so as to ensure a 360 ° communication around the receiver 3.
Le capteur 1 et l'émetteur 2 intègrent un étage d'amplification à gain variable de manière à éviter la saturation de l'amplificateur lorsque deux transmetteurs sont disposés à proximité. Ceci permet d'accepter les variations de distance entre le transmetteur fixe et le transmetteur mobile.The sensor 1 and the transmitter 2 integrate a variable gain amplification stage so as to avoid saturation of the amplifier when two transmitters are arranged in proximity. This makes it possible to accept variations in distance between the fixed transmitter and the mobile transmitter.
Le système de mesure 1 pourra varier en fonction des besoins de son utilisateur. Il est constitué principalement de capteurs destinés à effectuer la mesure d'un paramètre défini. II peut, par exemple, mesurer la température à l'intérieur de la remorque.The measurement system 1 may vary according to the needs of its user. It consists mainly of sensors intended to measure a defined parameter. It can, for example, measure the temperature inside the trailer.
Cet exemple est particulièrement destiné aux camions frigorifiques dans lesquelles un changement brutal de température peut informer le chauffeur d'un problème technique du groupe frigorifique. Plusieurs mesures de températures peuvent être simultanément réalisées, par exemple à l'avant et à l'arrière de la remorque.This example is particularly intended for refrigerated trucks in which a sudden change in temperature can inform the driver of a technical problem of the refrigeration unit. Several temperature measurements can be simultaneously performed, for example at the front and rear of the trailer.
Le système de mesure 1 peut également consister en des capteurs disposés au niveau des portes de manière à constater l'ouverture ou la fermeture de la porte de la remorque, permettant ainsi de relever une éventuelle effraction ou un défaut de fermeture de la porte. La mesure peut également consister en un capteur permettant de détecter des taux de gaz anormaux, tel que le CO2. Dans ce cas, si le taux de CO2 est particulièrement élevé, cela peut révéler la présence d'êtres vivants dans la remorque, et plus particulièrement la présence de clandestins. Le système de mesure 1 peut également mesurer la pression à l'intérieur d'un container, dans le cas de colis particuliers.The measuring system 1 may also consist of sensors arranged at the doors so as to note the opening or closing of the trailer door, thus making it possible to note a possible break-in or a failure to close the door. The measurement can also consist of a sensor making it possible to detect abnormal gas levels, such as CO 2 . In this case, if the CO 2 level is particularly high, it may reveal the presence of living beings in the trailer, and more particularly the presence of illegal immigrants. The measuring system 1 can also measure the pressure inside a container, in the case of particular packages.
La mesure peut également consister en un radar de recul permettant de guider l'arrière du véhicule, à savoir une remorque ou une caravane par exemple, par rapport au quai de chargement ou d'un autre type d'obstacle. Ce radar se manifeste généralement sous la forme d'un son. Ce radar de recul consiste en la mesure de la distance entre la partie tractée 5 et un obstacle ou un quai de chargement.The measurement may also consist of a reversing radar for guiding the rear of the vehicle, namely a trailer or caravan, for example, with respect to the loading dock or another type of obstacle. This radar is usually in the form of a sound. This reversing radar consists in measuring the distance between the towed portion 5 and an obstacle or a loading dock.
Le système de mesure 1 peut combiner tous ces types de capteurs, et même prévoir d'autres types d'alarme en fonction des besoins de l'utilisateur et également en fonction du type de véhicule sur lequel il est embarqué. Les exemples ne sont pas limitatifs et peuvent évoluer en fonction du type de véhicule sur lequel le système selon l'invention est embarqué.The measuring system 1 can combine all these types of sensors, and even provide other types of alarm depending on the needs of the user and also depending on the type of vehicle on which it is embedded. The examples are not limiting and may vary depending on the type of vehicle on which the system according to the invention is embedded.
Les informations mesurées par les capteurs sont ensuite transmises à l'émetteur 2. Elles peuvent être directement transmises au récepteur ou être stockées et enregistrées selon le mode choisi.The information measured by the sensors is then transmitted to the transmitter 2. They can be directly transmitted to the receiver or stored and recorded according to the chosen mode.
L'émetteur 2 est muni de systèmes de connexion 21 permettant une liaison avec huit capteurs, dont quatre peuvent être destinés à la mesure de température. L'émetteur 2 comprend aussi un système « bus CAN », ou tout autre support d'échanges informatiques sans fil en réseaux entre véhicules adapté. Il peut également être constitué de différents supports permettant de stocker, d'enregistrer ou de traiter les données transmises par les capteurs.The transmitter 2 is provided with connection systems 21 for connection with eight sensors, four of which may be intended for temperature measurement. The transmitter 2 also comprises a "CAN bus" system, or any other computer-based wireless communication medium in networks between adapted vehicles. It may also consist of different media for storing, recording or processing the data transmitted by the sensors.
Ces supports peuvent être des data-logger ou tout autre type d'interface de mémorisation de données. Ce data-logger peut retransmettre les données mesurées par les capteurs, notamment les températures, ou enregistrer ces informations. L'enregistrement peut compter jusqu'à 120 000 valeurs. Les données enregistrées sur le data-logger peuvent être transmises sur simple demande avec le matériel adéquat, ou être transmises via un système Bluetooth où les données seront transmises à un serveur. Le data-logger sera préférentiellement équipé d'un système à vidange mémoire automatique.These media can be data loggers or any other type of data storage interface. This data-logger can retransmit the data measured by the sensors, especially the temperatures, or record this information. The record can have up to 120,000 values. The data recorded on the data logger can be transmitted on request with the appropriate equipment, or transmitted via a Bluetooth system where the data will be transmitted to a server. The data-logger will preferably be equipped with an automatic draining system.
L'émetteur peut également être équipé de modules d'extension tels que Bluetooth, GPS, GSM ou Wifi (noms déposés) de manière à assurer un enregistrement et un transfert des données pour une couverture locale ou internationale.The transmitter can also be equipped with expansion modules such as Bluetooth, GPS, GSM or Wifi (registered names) to ensure data recording and transfer for local or international coverage.
Le système Bluetooth assure une connexion entre différents éléments sans fil sur une courte portée, à savoir une dizaine de mètres. Ce système permet la sauvegarde, et le transfert des données mesurées par les capteurs vers un serveur local. Il sera surtout utilisé pour les informations concernant les températures dans la mesure où celles-ci peuvent déterminer un bon respect des conditions de stockage.The Bluetooth system provides a connection between different wireless elements over a short range, ie about ten meters. This system allows the backup, and the transfer of the data measured by the sensors to a local server. It will mainly be used for information on temperatures as long as they can determine a good respect of the storage conditions.
Le système du GSM est un équivalent du système Bluetooth, qui se différencie cependant par sa portée. Il permet en effet un enregistrement et un transfert des données mesurées par les capteurs sur une échelle internationale.The GSM system is an equivalent of the Bluetooth system, which however differs in scope. It allows the recording and transfer of sensor-measured data on an international scale.
Le système du GPS permet de localiser l'émetteur 2 et par conséquent le camion qui lui est associé. L'association des deux systèmes GPS et GSM permet à la fois de localiser le camion et de suivre le relevé des informations mesurées par les capteurs. L'émetteur 2 comprend également une source d'alimentation, assurant son fonctionnement.The GPS system makes it possible to locate the transmitter 2 and consequently the truck associated with it. The combination of the two GPS and GSM systems makes it possible both to locate the truck and to follow the measurement of the information measured by the sensors. The transmitter 2 also includes a power source, ensuring its operation.
Les informations reçues par les capteurs du système de mesure 1 , sont relayées de la remorque à la cabine du camion via l'émetteur 2. Ce dernier présente un système automatique de reconnaissance des capteurs et fonctionne avec un système radio courte portée ou avec un système d'induction magnétique.The information received by the sensors of the measuring system 1 is relayed from the trailer to the truck cab via the transmitter 2. The latter presents an automatic system for recognizing the sensors and operates with a short-range radio system or with a system magnetic induction.
Les données mesurées par les capteurs sont transmises à l'utilisateur au niveau du récepteur 3 affichant les données sur l'afficheur 3, ces deux éléments étant disposés dans la cabine du camion ou à l'intérieur du véhicule. Un détecteur de champ est intégré dans l'émetteur 2, de manière à réveiller le récepteur 3 uniquement lorsque des informations doivent être transmises, afin d'économiser l'énergie électrique du système de communication selon l'invention. Toutes les informations mesurées par les capteurs sont transmises au chauffeur du véhicule, mais elles peuvent également transiter vers un opérateur, via un réseau. Ce réseau peut consister en un système PALM interagissant avec le système Bluetooth disposé sur l'émetteur de la remorque. Ce système permet d'accéder directement aux données du système Bluetoooth de l'émetteur.The data measured by the sensors are transmitted to the user at the receiver 3 displaying the data on the display 3, these two elements being arranged in the truck cab or inside the vehicle. A field detector is integrated in the transmitter 2, so as to wake the receiver 3 only when information must be transmitted, in order to save the electrical energy of the communication system according to the invention. All the information measured by the sensors is transmitted to the driver of the vehicle, but they can also pass to an operator via a network. This network may consist of a PALM system interacting with the Bluetooth system arranged on the trailer transmitter. This system provides direct access to Bluetoooth system data from the transmitter.
La logistique peut être une borne Bluetooth qui assurera le déchargement du système Bluetooth de l'émetteur 2. Ces données transitent vers un serveur qui va centraliser ces informations et éventuellement générer un système d'alerte pour le chauffeur du camion en cas d'anomalie des données transmises. Ce système d'alerte se manifeste par un SMS transmis au chauffeur via un téléphone portable.The logistics can be a Bluetooth terminal which will ensure the unloading of the Bluetooth system of the transmitter 2. These data transit to a server which will centralize this information and possibly generate an alert system for the driver of the truck in case of anomaly of the transmitted data. This alert system is manifested by an SMS sent to the driver via a mobile phone.
Si les données mesurées par le capteur sont enregistrées par un système GSM, elles transitent directement sur un serveur où elles peuvent être lues par un opérateur qui va éventuellement activer un système d'alerte en cas de données alarmantes.If the data measured by the sensor is recorded by a GSM system, they pass directly to a server where they can be read by an operator who will eventually activate an alert system in case of alarming data.
Ce système tel que décrit est particulièrement adapté au domaine du transport, notamment pour les camions, dans la mesure où il est simple à installer et ne nécessite pas un réglage automatique à chaque changement de remorque. Son installation ne nécessite aucune mise en place particulière et est réalisée sans fil.This system as described is particularly suitable for the field of transport, especially for trucks, in that it is simple to install and does not require automatic adjustment at each trailer change. Its installation does not require any particular installation and is done wirelessly.
Par ailleurs, l'afficheur, assurant la réception de plusieurs types d'informations, avec une seule interface, permet à son utilisateur d'obtenir rapidement toutes les données qu'il souhaite, sans avoir un matériel complexe ni encombrant. De plus, l'enregistrement des données, concernant notamment le relevé des températures à l'intérieur de la remorque frigorifique, permet un suivi des conditions de stockage des denrées alimentaires, et donc un suivi de la traçabilité.Moreover, the display, ensuring the reception of several types of information, with a single interface, allows the user to quickly obtain all the data he wants, without having a complex or cumbersome material. In addition, the recording of the data, in particular concerning the temperature reading inside the refrigerated trailer, makes it possible to follow the storage conditions of the foodstuffs, and thus a follow-up of the traceability.
Le système selon l'invention assure une sécurisation des transports dans la mesure où le chauffeur a directement accès aux données mesurées par les capteurs ou bien ces informations lui sont transmises via un serveur, de manière à ce qu'il soit alerté en cas de données anormales.The system according to the invention provides transport security in that the driver has direct access to the data measured by the sensors or this information is transmitted via a server, so that it is alerted in case of data abnormal.
La faculté de faire varier les distances entre transmetteur fixe et transmetteur mobile permet d'assurer la communication entre le tracteur et la remorque, quelles que soient la distance entre ces deux éléments, qui est fonction des marques, le mode d'attelage et la situation de circulation.The ability to vary the distances between the fixed transmitter and the mobile transmitter makes it possible to communicate between the tractor and the regardless of the distance between these two elements, which is a function of the marks, the coupling mode and the traffic situation.
L'invention a été décrite particulièrement pour une remorque et son camion, mais peut tout aussi bien s'appliquer à une caravane et une voiture, ou à un camion avec plusieurs remorques, à titre d'exemple non limitatif. Elle peut aussi s'appliquer à tout dispositif mobile constitué d'au moins deux éléments distincts.The invention has been described particularly for a trailer and its truck, but can equally well apply to a caravan and a car, or to a truck with several trailers, as a non-limiting example. It can also be applied to any mobile device consisting of at least two distinct elements.
Le système selon l'invention permet également un changement de remorque par rapport à la cabine sans changement du dispositif de mesure, la reconnaissance étant automatique entre la partie tractée et la partie tractante.The system according to the invention also allows a trailer change with respect to the cab without changing the measuring device, the recognition being automatic between the towed part and the towing part.
Bien que l'invention ait été décrite avec des moyens de réalisation particuliers, elle comprend tous les équivalents techniques des moyens décrits. Although the invention has been described with particular embodiments, it includes all the technical equivalents of the means described.

Claims

REVENDICATIONS
1. Système de communication bi-directionnelle et half-duplex sans fil entre la partie tractée 5 d'un véhicule et la partie tractante 6 de ce même véhicule, constitué d'au moins un capteur 1 dans la partie tractée transmettant ses données à un émetteur 2, puis à un récepteur 3 et un afficheur 4, caractérisé en ce que la communication entre la partie tractée 5 et la partie tractante 6 est réalisée par induction magnétique, l'émetteur1. Two-way wireless communication system and half-duplex between the towed portion 5 of a vehicle and the towing portion 6 of the same vehicle, consisting of at least one sensor 1 in the towed portion transmitting its data to a transmitter 2, then to a receiver 3 and a display 4, characterized in that the communication between the towed portion 5 and the drawing part 6 is made by magnetic induction, the transmitter
2 et le récepteur 3 pouvant être espacés d'une distance allant de zéro à un mètre cinquante, et pouvant être décalés l'un par rapport à l'autre. 2. Système de communication selon la revendication 1 , caractérisé en ce le décalage des antennes de l'émetteur 2 et du récepteur est de 75°. 2 and the receiver 3 can be spaced from a distance of zero to one meter fifty, and can be shifted relative to each other. 2. Communication system according to claim 1, characterized in that the offset of the antennas of the transmitter 2 and the receiver is 75 °.
3. Système de communication selon l'une des revendications précédentes, caractérisé en ce que l'émetteur 2 peut être muni d'une antenne bi ou tri- axiale de manière à assurer une communication sur 360° autour du récepteur 3.3. Communication system according to one of the preceding claims, characterized in that the transmitter 2 can be provided with a bi or triaxial antenna so as to provide a 360 ° communication around the receiver 3.
4. Système de communication selon l'une des revendications précédentes, caractérisé en ce que le capteur 1 et l'émetteur 2 intègrent un étage d'amplification à gain variable.4. Communication system according to one of the preceding claims, characterized in that the sensor 1 and the transmitter 2 incorporate a variable gain amplification stage.
5. Système de communication selon la revendication 1, caractérisé en ce que le capteur 1 mesure la température à l'intérieur de la partie tractée 5.5. Communication system according to claim 1, characterized in that the sensor 1 measures the temperature inside the towed portion 5.
6. Système de communication selon la revendication 1 , caractérisé en ce que le capteur 1 détecte l'ouverture ou la fermeture du système de fermeture de la partie tractée 6.6. Communication system according to claim 1, characterized in that the sensor 1 detects the opening or closing of the closing system of the towed portion 6.
7. Système de communication selon la revendication 1 , caractérisé en ce que le capteur 1 mesure le taux de gaz à l'intérieur de la partie tractée 5.7. Communication system according to claim 1, characterized in that the sensor 1 measures the rate of gas inside the towed portion 5.
8. Système de communication selon la revendication 1, caractérisé en ce que le capteur 1 mesure la distance entre la partie tractée 5 et un obstacle.8. Communication system according to claim 1, characterized in that the sensor 1 measures the distance between the towed portion 5 and an obstacle.
9. Système de communication selon la revendication 1, caractérisé en ce que le capteur 1 mesure la pression dans la partie tractée 5. 9. Communication system according to claim 1, characterized in that the sensor 1 measures the pressure in the towed portion 5.
10. Système de communication selon l'une des revendications précédentes, caractérisé en ce que l'émetteur 2 comprend un support d'échanges informatiques en réseaux.10. Communication system according to one of the preceding claims, characterized in that the transmitter 2 comprises a computer network exchange support.
11. Système de communication selon la revendication 7, caractérisé en ce que ledit support d'échanges est un système « bus CAN ».11. The communication system as claimed in claim 7, characterized in that said exchange medium is a "CAN bus" system.
12. Système de communication selon l'une des revendications précédentes, caractérisé en ce que l'émetteur 2 comprend une interface de mémorisation de données.Communication system according to one of the preceding claims, characterized in that the transmitter 2 comprises a data storage interface.
13. Système de communication selon la revendication 9, caractérisé en ce que l'interface de mémorisation de données est un système data-logger.Communication system according to claim 9, characterized in that the data storage interface is a data logger system.
14. Système de communication selon l'une des revendications précédentes, caractérisé en ce que l'émetteur comprend un système permettant la communication sans fil sur une courte distance, la sauvegarde et le transfert de données mesurées par les capteurs vers un serveur local, tel qu'un système Bluetooth.14. Communication system according to one of the preceding claims, characterized in that the transmitter comprises a system for wireless communication over a short distance, the backup and transfer of data measured by the sensors to a local server, such as than a Bluetooth system.
15. Système de communication selon l'une des revendications précédentes, caractérisé en ce que l'émetteur 2 comprend un système GPS, permettant de localiser ledit émetteur 2.15. Communication system according to one of the preceding claims, characterized in that the transmitter 2 comprises a GPS system for locating said transmitter 2.
16. Système de communication selon l'une des revendications précédentes, caractérisé en ce que l'émetteur comprend un système GSM, assurant la communication sans fil sur une longue, la sauvegarde et le transfert de données mesurées par les capteurs vers un serveur.16. Communication system according to one of the preceding claims, characterized in that the transmitter comprises a GSM system, providing wireless communication over a long time, the backup and transfer of data measured by the sensors to a server.
17. Système de communication selon l'une des revendications précédentes, caractérisé en ce que l'émetteur 2 transmet directement les mesures réalisées par le capteur 1 au récepteur de la partie tractante 6.17. Communication system according to one of the preceding claims, characterized in that the transmitter 2 directly transmits the measurements made by the sensor 1 to the receiver of the towing part 6.
18. Système de communication selon l'une des revendications précédentes, caractérisé en ce que l'émetteur transmet les mesures réalisées par le capteur 1 à un serveur.18. Communication system according to one of the preceding claims, characterized in that the transmitter transmits the measurements made by the sensor 1 to a server.
19. Système de communication selon la revendication 15, caractérisé en ce que le serveur génère une alerte en cas de mesure anormale.19. Communication system according to claim 15, characterized in that the server generates an alert in case of abnormal measurement.
20. Système de communication selon la revendication 16, caractérisé en ce que l'alerte est un SMS. 20. Communication system according to claim 16, characterized in that the alert is an SMS.
PCT/FR2006/001135 2005-05-23 2006-05-16 Communication device between the towed part and the towing part of a vehicle, designed in particular for trucks WO2006125894A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0505126 2005-05-23
FR0505126A FR2886080B1 (en) 2005-05-23 2005-05-23 COMMUNICATION DEVICE BETWEEN THE TRACTED PART AND THE TRUCKING PART OF A VEHICLE, IN PARTICULAR FOR TRUCKS

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WO2006125894A1 true WO2006125894A1 (en) 2006-11-30
WO2006125894B1 WO2006125894B1 (en) 2007-01-04

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FR2886080A1 (en) 2006-11-24
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