WO2018178580A1 - Method and device for monitoring parameters for ground vehicles - Google Patents
Method and device for monitoring parameters for ground vehicles Download PDFInfo
- Publication number
- WO2018178580A1 WO2018178580A1 PCT/FR2018/050776 FR2018050776W WO2018178580A1 WO 2018178580 A1 WO2018178580 A1 WO 2018178580A1 FR 2018050776 W FR2018050776 W FR 2018050776W WO 2018178580 A1 WO2018178580 A1 WO 2018178580A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmitter
- vehicle
- fact
- radiofrequency
- network
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012544 monitoring process Methods 0.000 title claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 5
- 230000010363 phase shift Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 238000010295 mobile communication Methods 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 230000003595 spectral effect Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0479—Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/20—Arrangements in telecontrol or telemetry systems using a distributed architecture
- H04Q2209/25—Arrangements in telecontrol or telemetry systems using a distributed architecture using a mesh network, e.g. a public urban network such as public lighting, bus stops or traffic lights
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/82—Arrangements in the sub-station, i.e. sensing device where the sensing device takes the initiative of sending data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/86—Performing a diagnostic of the sensing device
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/88—Providing power supply at the sub-station
- H04Q2209/883—Providing power supply at the sub-station where the sensing device enters an active or inactive mode
Definitions
- the present invention relates to the field of embedded electronics and in particular adaptations to implement in the best conditions, the monitoring of parameters by sensors installed on land vehicles.
- a known problem of these systems is to be active only during the driving phases or having to ship power supplies to allow the receiver power and, therefore, allow monitoring in the parking phase without being able to interact with the user to report a malfunction during this parking phase.
- the sensors are high energy consumers when transmitting radiofrequency to the on-board receiver because the transmission frequency must be high to ensure accurate time tracking of potential damage, especially with regard to the pressure of the tires. .
- the applicant has also conducted research aimed at proposing an optimized solution for transmitting and receiving all data from a land vehicle.
- the method is remarkable in that the transmitter embedded in the vehicle is a transmitter associated with a sensor integrated in a wheel.
- Such a method has the advantage of allowing continuous monitoring of the parameters of a rolling sub-assembly without the need for an on-board autonomous power source dedicated to this monitoring.
- the invention allows a significant financial gain for the operator of the fleet.
- a single radio station is required to cover a logistics platform, a vehicle fleet parking area, etc.
- the parameters of the rolling subassemblies can be received in the parking phase but not only.
- This characteristic also makes it possible to create overlapping covers and thus a network ensuring the monitoring of the parameters both at a standstill and during the movement of the vehicles.
- the set of wheel sensors of a vehicle communicates directly with the radio station or stations. In addition, it is not necessary to design an additional intermediate device to implement the invention.
- the transmitter is designed according to a wireless transmission technology, low consumption, which emits regularly (according to a defined cycle) or event (rapid variation of a chosen parameter (temperature, door opening detection, ...) when the vehicle is parked and therefore within range of the single base station installed on site
- a wireless transmission technology low consumption
- event rapid variation of a chosen parameter (temperature, door opening detection, 10) when the vehicle is parked and therefore within range of the single base station installed on site
- Each on-board sensor has a unique identifier code to identify it and therefore to know the references of the rolling subassembly on which it is installed.
- each center, place of passage or concentration of vehicles, having a reception antenna can be accessible under the condition of access rights to the network (user password granted in exchange for a subscription paid to the administering service base stations).
- each base station owner offers users the possibility of accessing the geographic network which concerns them in their vehicle fleet management.
- the radiofrequency transmissions between the transmitter and the base station are carried out on the subGHZ bands according to the choice of the communication protocol: UNB (Ultra Narrow Band / Ultra narrow band) BPSK ( Binary Phase Shift Keying / Binary Modulation by Phase Change), LoRa (Long Range Wide Area Network).
- UNB Ultra Narrow Band / Ultra narrow band
- BPSK Binary Phase Shift Keying / Binary Modulation by Phase Change
- LoRa Long Range Wide Area Network
- the communication between the sensor and the base station is bidirectional for reconfiguring new alert thresholds and adapting them according to the goods transported.
- the radio station transmits messages to the rolling subsystems equipped to receive them. These messages can be broadcast at the start of the vehicle via an interface for the driver.
- N being greater than or equal to 3
- This feature can help a driver to take possession of their vehicle or trailer in a minimum of time, or identify vehicles that have stayed in or transit through a contaminated area (chemical or nuclear industry).
- the invention also relates to the device for implementing all or part of the method described above.
- This device is remarkable in that it comprises sensors equipped with a radiofrequency transmission module to which an additional transmission module is associated in order to generate a modulation compatible with the communication technology of the network with which the sensor must communicate. .
- the senor is equipped with a transmitter able to generate the modulation used for the network.
- the method may comprise a manipulation on transmitters.
- the frequency band (868.2 MHz) which is not conventionally managed by the transmit / receive subsystems of the transmitters equipping the sensors on the market
- the BPSK (Binary Phase-Shift Keying) modulation is emulated, by a change of frequency to almost zero power at the moment of phase changes so as to "accelerate the carrier” and thus create a phase shift of 180 ° necessary to modulate a bit per symbol.
- the information from onboard sensors in a vehicle does not require a high bit rate and is therefore fully compatible to communicate with a network using BPSK technology.
- an envelope modulation is also generated by dynamically driving the output amplification stage in order to limit the spectral spread, an essential parameter to ensure the sensitivity of the system and very limited in the case of modulation of the UNB type network.
- the device comprises a radiofrequency transmitter type ATA5702 or ATA5831 qualified automotive, inexpensive and capable of generating a BPSK modulation under the desired conditions (carrier 868.2 MHz +/- 96 kHz; phase, frequency resolution ⁇ 100Hz, amplitude threshold ⁇ 0.5dB, amplitude dynamics> 25dB), and then generate the code to emulate this modulation.
- carrier 868.2 MHz +/- 96 kHz; phase, frequency resolution ⁇ 100Hz, amplitude threshold ⁇ 0.5dB, amplitude dynamics> 25dB a radiofrequency transmitter type ATA5702 or ATA5831 qualified automotive, inexpensive and capable of generating a BPSK modulation under the desired conditions (carrier 868.2 MHz +/- 96 kHz; phase, frequency resolution ⁇ 100Hz, amplitude threshold ⁇ 0.5dB, amplitude dynamics> 25dB), and then generate the code to emulate this modulation.
- the envelope shape and "matching" optimizations of the quartz made it possible to comply with the
- the tolerance of the carrier is around +/- 24kHz.
- the transmission power is selected so that it can cover a radius of about one kilometer around the radio station, and offer a sensor life of about 4 years with 8 transmissions per day, instead of a broadcast. every 2 minutes with a wireless sensor built into a standard wheel, for a similar life of 4 years.
- Figure 1 is a schematic drawing illustrating the prior art of communications between a rolling subassembly and a network
- Figure 2 is a schematic drawing illustrating communications according to one embodiment of the invention between a rolling subassembly and an antenna;
- FIG. 3 is a schematic drawing of the various communications envisaged for the implementation of the invention. DESCRIPTION OF A PREFERRED EMBODIMENT
- a truck referenced C as a whole comprises a trailer 100 and a tractor 200.
- the tires of the wheels of the trailer 100 and those of the tractor 200 receive a pressure and / or temperature sensor 300 which are equipped with a transmission module for transmitting the measured data to a reception and transmission unit, the a 110 being present on the rolling subassembly formed by the trailer 100 and another 210 being present on the rolling sub-assembly formed by the tractor 200.
- the trailer 100 and the tractor 200 may be equipped with other sensors or other transmitters 120, 220 for the purpose of implementing other functions such as:
- the wheel sensors 300, the other sensors or transmitters 120 and 220 communicate radiofrequency unidirectionally to the receiving and transmission unit 110 or 210 embedded in the rolling subassembly to which they belong. These receiving units 110 and 210 communicate with each other bidirectionally.
- the reception and transmission 210 equipping the tractor 200 is also in wire connection or not with a central unit 400 installed on the tractor 200 and capable of communicating with the outside with a network R or a computer P by any means of communication.
- the method and the device of the invention propose to install a base station S equipped with an antenna A or a network of stations constituted by a plurality of antennas A (not shown ) and to adapt the transmission module of the sensors 300 ', 120' and other transmitters 220 'so as to create a direct link between said sensors and transmitters 300', 120 ', 220' and the antenna A.
- reception and transmission units 110 and 210 could be retained but no longer have the function of transmitting data from the sensors and other transmitters 220 '.
- the invention has the advantage of no longer requiring the presence of these units which have been removed from this Figure 2.
- FIG. 3 illustrates a preferred but nonlimiting embodiment of the communication possibilities proposed from a sensor 300 'according to the invention.
- This sensor 300 'positioned in the tire of the wheel of a vehicle transmits the measured data by a unidirectional radio wave F1 directly to an external radio station or base station S comprising a receiving antenna A.
- This base station S communicates F2 with a network or is part of a network. It also communicates with a computer P via an Ethernet network F2.
- the base station S also transmits F4 data to the sensor 300 'which is then equipped with a suitable receiving module.
- This sensor 300 also communicates with a portable diagnostic tool 500 by radiofrequency waves for the F5 emission and by low frequency waves for the F6 reception.
- This tool communicates with said computer P by any means F7.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
PROCÉDÉ ET DISPOSITIF DE SURVEILLANCE DE PARAMÈTRES POUR VEHICULES METHOD AND DEVICE FOR MONITORING PARAMETERS FOR VEHICLES
TERRESTRES LAND
DOMAINE D'APPLICATION DE L'INVENTION FIELD OF APPLICATION OF THE INVENTION
La présente invention a trait au domaine de l'électronique embarquée et notamment aux adaptations permettant de mettre en oeuvre dans les meilleures conditions, la surveillance de paramètres par des capteurs installés sur des véhicules terrestres. The present invention relates to the field of embedded electronics and in particular adaptations to implement in the best conditions, the monitoring of parameters by sensors installed on land vehicles.
DESCRIPTION DE L'ART ANTÉRIEUR DESCRIPTION OF THE PRIOR ART
De nos jours, les progrès réalisés par l'électronique ont permis d'intégrer sur les véhicules terrestres, une multitude de capteurs autonomes communicants. Ces capteurs sont suffisamment compacts pour être logés par exemple dans un pneumatique de véhicule terrestre (automobile, camion et remorque, etc..) dans le cas de capteurs de pression et de température. Nowadays, the progress made by electronics has made it possible to integrate on land vehicles, a multitude of communicating autonomous sensors. These sensors are compact enough to be housed for example in a land vehicle tire (automobile, truck and trailer, etc.) in the case of pressure and temperature sensors.
L'amélioration de la sécurité passive due à ces systèmes de contrôle ainsi que les gains en consommation de carburant, comme en usure de pneumatiques ont amené les gouvernements à rendre obligatoires ces systèmes. De nombreux équipementiers, notamment automobiles, ont alors proposé leur propre système, toujours basé sur une technologie de radiofréquence , permettant la transmission des données propres au pneumatique (pression, température,...) du module d'émission associé au capteur placé au contact de l'air (ou de l'azote) contenu par le pneumatique, vers un récepteur embarqué sur le véhicule, donnant l'information finale au conducteur via un affichage sur la planche de bord. De nombreux systèmes coexistent. The improvement of passive safety due to these control systems as well as the gains in fuel consumption, such as tire wear, have led governments to make these systems mandatory. Many OEMs, including automotive, have then proposed their own system, still based on radio frequency technology, allowing the transmission of tire specific data (pressure, temperature, ...) of the transmitter module associated with the sensor placed in contact air (or nitrogen) contained by the tire, to a receiver on the vehicle, giving the final information to the driver via a display on the dashboard. Many systems coexist.
Un problème connu de ces systèmes est de n'être actifs que lors des phases de roulage ou de devoir embarquer des alimentations afin de permettre l'alimentation du récepteur et, par suite, permettre une surveillance en phase de stationnement sans pour autant être capable d' interagir avec l'utilisateur pour lui signaler un dysfonctionnement durant cette phase de stationnement. A known problem of these systems is to be active only during the driving phases or having to ship power supplies to allow the receiver power and, therefore, allow monitoring in the parking phase without being able to interact with the user to report a malfunction during this parking phase.
En effet, les capteurs sont de forts consommateurs d'énergie lors de leur émission de radiofréquence vers le récepteur embarqué car la fréquence d'émission doit être élevée pour assurer un suivi temporel précis des avaries potentielles, notamment en ce qui concerne la pression des pneumatiques. Indeed, the sensors are high energy consumers when transmitting radiofrequency to the on-board receiver because the transmission frequency must be high to ensure accurate time tracking of potential damage, especially with regard to the pressure of the tires. .
Pour résoudre ce problème de consommation d'énergie, une solution consiste à distinguer les phases de roulage et les phases de stationnement. A cette fin, un capteur de mouvement ( accéléromètre, vibration,...) placé dans chaque roue détecte le déplacement du véhicule et réveille l'électronique du capteur qui, par conséquent, ne travaille qu'en phase de roulage. Il est donc possible aussi en phase de stationnement de transmettre à intervalle de temps plus long. Néanmoins dans ce cas, comme le récepteur et les instruments de bord ne sont pas forcément alimentés, les données ou les alertes transmises ne sont pas reçues ce qui réduit leur utilité pour le chauffeur ou le gestionnaire de la flotte de véhicules. To solve this problem of energy consumption, one solution is to distinguish the phases of rolling and the phases parking. To this end, a motion sensor (accelerometer, vibration, ...) placed in each wheel detects the movement of the vehicle and wakes up the electronics of the sensor which, therefore, only works in the driving phase. It is therefore also possible in the parking phase to transmit at a longer time interval. However, in this case, as the receiver and the instruments are not necessarily fed, the data or alerts transmitted are not received which reduces their usefulness for the driver or the fleet manager.
Une autre solution connue consiste à ne pas se soucier de la consommation et à émettre en permanence à intervalle de temps régulier, sans distinguer les phases de roulage ou de stationnement. Dans ce cas, la partie du dispositif mettant en oeuvre la réception doit être alimentée de manière autonome durant les phases de stationnement pour rendre efficace cette information ce qui implique la présence de batteries coûteuses embarquées sur le véhicule. Un autre problème réside dans le coût dû à la présence nécessaire de récepteurs embarqués sur chaque sous-ensemble roulant (jusqu'à quatre récepteurs pour un camion avec deux remorques). Par exemple, le procédé et le dispositif décrits dans le document WO2012/167357 requièrent la présence systématique d'un module de communication intermédiaire embarqué par le véhicule. Another known solution is not to worry about the consumption and to emit continuously at regular time interval, without distinguishing the phases of driving or parking. In this case, the part of the device implementing the reception must be powered autonomously during the parking phases to make effective this information which implies the presence of expensive batteries on board the vehicle. Another problem lies in the cost due to the necessary presence of on-board receivers on each rolling subassembly (up to four receivers for a truck with two trailers). For example, the method and the device described in document WO2012 / 167357 require the systematic presence of an intermediate communication module embedded by the vehicle.
DESCRIPTION DE L'INVENTION DESCRIPTION OF THE INVENTION
Partant de ces constats, la demanderesse a mené des recherches visant à proposer une solution de surveillance des paramètres mesurés sur un véhicule permettant d'obvier aux inconvénients de l'art antérieur. On the basis of these observations, the applicant has conducted research aimed at proposing a solution for monitoring the parameters measured on a vehicle that overcomes the disadvantages of the prior art.
La demanderesse a également mené des recherches visant à proposer une solution optimisée pour transmettre et recevoir toutes données issues d'un véhicule terrestre. The applicant has also conducted research aimed at proposing an optimized solution for transmitting and receiving all data from a land vehicle.
Ces recherches ont abouti à la conception et à la réalisation d'un procédé de surveillance de paramètres liés à un véhicule terrestre du type de celui équipé d'au moins un émetteur émettant des données par radiofréquence, ledit procédé comprenant les opérations suivantes : This research led to the design and implementation of a method for monitoring parameters related to a terrestrial vehicle of the type equipped with at least one transmitter transmitting data by radio frequency, said method comprising the following operations:
- installation d'une station radio longue portée dite station de base sur les sites de transits ou de stationnement du véhicule à des fins de réception directe des données émises par l'émetteur embarqué dans le véhicule^ - installation of a long-range radio station called base station on the sites of transit or parking of the vehicle to for direct reception of the data transmitted by the onboard transmitter in the vehicle ^
- installation d'une pluralité de stations radio longue portée^ - installation of a plurality of long-range radio stations
Le procédé est remarquable en ce que l'émetteur embarqué dans le véhicule est un émetteur associé à un capteur intégré à une roue. The method is remarkable in that the transmitter embedded in the vehicle is a transmitter associated with a sensor integrated in a wheel.
Un tel procédé a pour avantage de permettre le suivi continu des paramètres d'un sous-ensemble roulant sans nécessité l'emploi d'une source d'alimentation autonome embarquée dédiée à ce suivi. Such a method has the advantage of allowing continuous monitoring of the parameters of a rolling sub-assembly without the need for an on-board autonomous power source dedicated to this monitoring.
Il a pour autre avantage de permettre la suppression des récepteurs embarqués et éventuellement des batteries associées. L'invention permet un gain financier conséquent pour l'opérateur de la flotte. It has the other advantage of allowing the removal of on-board receivers and possibly associated batteries. The invention allows a significant financial gain for the operator of the fleet.
Une seule station radio est nécessaire pour couvrir une plateforme logistique, une zone de stationnement de flotte de véhicules, etc.... Ainsi, les paramètres des sous-ensembles roulants peuvent être reçus en phase de stationnement mais pas seulement. A single radio station is required to cover a logistics platform, a vehicle fleet parking area, etc. Thus, the parameters of the rolling subassemblies can be received in the parking phase but not only.
Cette caractéristique permet en outre de créer des couvertures se chevauchant et ainsi un réseau assurant la surveillance des paramètres aussi bien à l'arrêt que lors du déplacement des véhicules. This characteristic also makes it possible to create overlapping covers and thus a network ensuring the monitoring of the parameters both at a standstill and during the movement of the vehicles.
L'ensemble des capteurs de roue d'un véhicule communique directement avec la ou les stations radio. De plus, il n'est pas nécessaire de concevoir un dispositif intermédiaire supplémentaire pour mettre en œuvre l'invention. The set of wheel sensors of a vehicle communicates directly with the radio station or stations. In addition, it is not necessary to design an additional intermediate device to implement the invention.
Selon une autre caractéristique particulièrement avantageuse de l'invention, l'émetteur est conçu selon une technologie de transmission sans fil, basse consommation, qui émet régulièrement (selon un cycle défini) ou sur événement (variation rapide d'un paramètre choisi (température, détection ouverture porte,...) lorsque le véhicule est en stationnement et donc à portée de l'unique station de base implantée sur site. Chaque capteur embarqué dispose d'un code identifiant unique permettant de l'identifier et donc de connaître les références du sous-ensemble roulant sur lequel il est installé . According to another particularly advantageous characteristic of the invention, the transmitter is designed according to a wireless transmission technology, low consumption, which emits regularly (according to a defined cycle) or event (rapid variation of a chosen parameter (temperature, door opening detection, ...) when the vehicle is parked and therefore within range of the single base station installed on site Each on-board sensor has a unique identifier code to identify it and therefore to know the references of the rolling subassembly on which it is installed.
Selon une autre caractéristique particulièrement avantageuse de l'invention, la station de base est connectée à un réseau de communication mobile de type - GPRS =General Packet Radio Service/normes de téléphonie mobile de deuxième génération, According to another particularly advantageous characteristic of the invention, the base station is connected to a mobile communication network of the following type: - GPRS = General Packet Radio Service / second generation mobile telephony standards,
- 3G = normes de téléphonie mobile de troisième génération, ou - 3G = third generation mobile telephony standards, or
- réseau ethernet (protocole de réseau local à communication de paquets). Cette caractéristique permet une surveillance de machine- à-machine (M2M) permanente sans affecter la durée de vie de la batterie du véhicule. L'exploitant de la flotte peut ainsi, en se connectant à son réseau de stations de base, connaître en temps réel l'état de son parc de pneumatiques en plus de géolocaliser macroscopiquement son véhicule par rapport aux zones couvertes par son réseau de réception. Pour rappel, en cas de variation soudaine des paramètres physiques surveillés ou franchissement de seuil prédéfini dans les capteurs, ces derniers émettent instantanément un message d'alerte vers le réseau de réception. - ethernet network (packet communication LAN protocol). This feature enables permanent machine-to-machine (M2M) monitoring without affecting the life of the vehicle's battery. The operator of the fleet can thus, by connecting to its network of base stations, know in real time the state of its fleet of tires in addition to macroscopically geolocate its vehicle in relation to the areas covered by its reception network. As a reminder, in the event of a sudden change in the monitored physical parameters or threshold crossing in the sensors, the sensors instantaneously send an alert message to the reception network.
Ces informations peuvent par exemple couvrir pour un camion : la pression des pneumatiques => sécurité et opérationnalité assurées , This information can for example cover for a truck: the pressure of the tires => safety and operability assured,
- la température d'une zone réfrigérée => contrôle de la chaîne du froid, - the temperature of a refrigerated zone => control of the cold chain,
- le statut de l'ouverture des portes d'une remorque, surveillance contre le vol ou perte, surveillance du chargement/déchargement,- the status of the opening of the doors of a trailer, surveillance against theft or loss, monitoring of loading / unloading,
- la surveillance de la présence ou de l'absence d'un sous-ensemble roulant sur une zone de couverture (géorepérage), - monitoring the presence or absence of a rolling subassembly on a coverage area (georeferencing),
les niveaux de fluides consommables (gasoil, huile, eau...) => alerte panne ou de vol de carburant. the levels of consumable fluids (diesel, oil, water ...) => breakdown alert or fuel theft.
Un autre avantage d'un tel procédé réside dans la mutualisation des stations radio. En effet, chaque centre, lieu de passage ou de concentration de véhicules, disposant d'une antenne de réception peut être accessible sous condition de droits d'accès au réseau (mot de passe utilisateur concédé en échange d'un abonnement payé au service administrant les stations de base). Ainsi, chaque propriétaire de station de base offre à des utilisateurs, la possibilité d'accéder au maillage géographique qui les concerne dans leur gestion de flotte de véhicule. Par extension, comme expliqué plus haut, il est possible d'obtenir l'ensemble des informations des capteurs, même durant les phases de roulage, pour peu que le parcours des sous-ensembles roulants traverse des zones couvertes par le réseau des stations de base. Selon une autre caractéristique particulièrement avantageuse de l'invention, les émissions de radiofréquence entre l'émetteur et la station de base sont réalisées sur les bandes subGHZ suivant le choix du protocole de communication : UNB (Ultra Narrow Band/bande ultra étroite) BPSK (Binary Phase Shift Keying/Modulation binaire par changement de phase), LoRa (Long Range Wide Area Network- réseau étendu à longue portée) . Another advantage of such a method lies in the pooling of radio stations. Indeed, each center, place of passage or concentration of vehicles, having a reception antenna can be accessible under the condition of access rights to the network (user password granted in exchange for a subscription paid to the administering service base stations). Thus, each base station owner offers users the possibility of accessing the geographic network which concerns them in their vehicle fleet management. By extension, as explained above, it is possible to obtain all the information from the sensors, even during the rolling phases, provided that the route of the rolling sub-assemblies passes through areas covered by the network of base stations. . According to another particularly advantageous characteristic of the invention, the radiofrequency transmissions between the transmitter and the base station are carried out on the subGHZ bands according to the choice of the communication protocol: UNB (Ultra Narrow Band / Ultra narrow band) BPSK ( Binary Phase Shift Keying / Binary Modulation by Phase Change), LoRa (Long Range Wide Area Network).
Selon une autre caractéristique particulièrement avantageuse de l'invention, la communication entre capteur et station de base est bidirectionnelle pour reconfigurer de nouveaux seuils d'alerte et les adapter en fonction de la marchandise transportée. According to another particularly advantageous characteristic of the invention, the communication between the sensor and the base station is bidirectional for reconfiguring new alert thresholds and adapting them according to the goods transported.
Selon une autre caractéristique particulièrement avantageuse de l'invention, la station radio transmet des messages aux sous- ensembles roulants équipés pour les recevoir. Ces messages peuvent être diffusés au démarrage du véhicule via une interface à l'intention du conducteur. According to another particularly advantageous characteristic of the invention, the radio station transmits messages to the rolling subsystems equipped to receive them. These messages can be broadcast at the start of the vehicle via an interface for the driver.
Sur une zone couverte susceptible d'atteindre 2 miles (environ 3,2 kilomètres de diamètre), il est possible d'effectuer une triangulation à l'aide de N stations (N étant supérieur ou égal à 3) afin de réaliser une géolocalisation. Cette fonctionnalité peut aider un chauffeur à prendre possession de son véhicule ou de sa remorque en un minimum de temps, ou identifier des véhicules ayant séjourné dans ou transiter par une zone contaminée (industrie chimique ou nucléaire). On a covered area of up to 2 miles (approximately 3.2 kilometers in diameter), it is possible to triangulate using N stations (N being greater than or equal to 3) to perform a geolocation. This feature can help a driver to take possession of their vehicle or trailer in a minimum of time, or identify vehicles that have stayed in or transit through a contaminated area (chemical or nuclear industry).
L'invention concerne également le dispositif permettant de mettre en œuvre tout ou partie du procédé ci-dessus décrit. Ce dispositif est remarquable en ce qu'il comprend des capteurs équipés d'un module d'émission en radiofréquence auquel un module d'émission supplémentaire est associé afin de générer une modulation compatible avec la technologie de communication du réseau avec lequel le capteur doit communiquer. The invention also relates to the device for implementing all or part of the method described above. This device is remarkable in that it comprises sensors equipped with a radiofrequency transmission module to which an additional transmission module is associated in order to generate a modulation compatible with the communication technology of the network with which the sensor must communicate. .
Pour mettre en œuvre l'invention sur un réseau de station radio utilisant une technologie du type UNB (Ultra Narrow Band/bande ultra étroite) sur une bande de fréquences ISM (Industriel, Scientifique et Médical), le capteur est équipé d'un transmetteur capable de générer la modulation utilisée pour le réseau. To implement the invention on a radio station network using a technology of the type UNB (Ultra Narrow Band) on an ISM frequency band (Industrial, Scientific and Medical), the sensor is equipped with a transmitter able to generate the modulation used for the network.
Selon une autre caractéristique particulièrement avantageuse de l'invention, le procédé peut comprendre une opération de manipulation sur les émetteurs. Ainsi, outre la bande de fréquence (868.2MHz) non gérée classiquement par les sous-ensembles d'émission/réception des émetteurs équipant les capteurs du marché, la modulation BPSK (Binary Phase-Shift Keying/ Modulation binaire par changement de phase) est émulée, par un changement de fréquence à puissance quasiment nulle au moment des changements de phase de façon à "accélérer temporellement " la porteuse et créer ainsi un déphasage de 180° nécessaire pour moduler un bit par symbole. L'information issue des capteurs embarqués dans un véhicule ne nécessite pas un débit binaire élevé et est donc tout à fait compatible pour communiquer avec un réseau utilisant une technologie BPSK. According to another particularly advantageous characteristic of the invention, the method may comprise a manipulation on transmitters. Thus, in addition to the frequency band (868.2 MHz), which is not conventionally managed by the transmit / receive subsystems of the transmitters equipping the sensors on the market, the BPSK (Binary Phase-Shift Keying) modulation is emulated, by a change of frequency to almost zero power at the moment of phase changes so as to "accelerate the carrier" and thus create a phase shift of 180 ° necessary to modulate a bit per symbol. The information from onboard sensors in a vehicle does not require a high bit rate and is therefore fully compatible to communicate with a network using BPSK technology.
Selon une autre caractéristique particulièrement avantageuse de l'invention, une modulation d'enveloppe est également générée en pilotant de façon dynamique l'étage d'amplification de sortie afin de limiter l'étalement spectral, paramètre essentiel pour assurer la sensibilité du système et très limité dans le cas de la modulation du réseau de type UNB. According to another particularly advantageous characteristic of the invention, an envelope modulation is also generated by dynamically driving the output amplification stage in order to limit the spectral spread, an essential parameter to ensure the sensitivity of the system and very limited in the case of modulation of the UNB type network.
Selon une autre caractéristique particulièrement avantageuse de l'invention, le dispositif comprend un transmetteur radiofréquence de type ATA5702 ou ATA5831 qualifié automotive, peu onéreux et capable de générer une modulation BPSK dans les conditions souhaitées (Porteuse 868.2MHz +/-96kHz; faible bruit de phase, résolution de fréquence <100Hz, seuil d'amplitude <0.5dB, dynamique d'amplitude >25dB), et ensuite générer le code pour émuler cette modulation. Les optimisations de forme d'enveloppe et de « matching » du quartz ont permis d'être conforme aux exigences de radiofréquence définies par un tel réseau. According to another particularly advantageous characteristic of the invention, the device comprises a radiofrequency transmitter type ATA5702 or ATA5831 qualified automotive, inexpensive and capable of generating a BPSK modulation under the desired conditions (carrier 868.2 MHz +/- 96 kHz; phase, frequency resolution <100Hz, amplitude threshold <0.5dB, amplitude dynamics> 25dB), and then generate the code to emulate this modulation. The envelope shape and "matching" optimizations of the quartz made it possible to comply with the radiofrequency requirements defined by such a network.
Selon un autre mode de réalisation, la tolérance de la porteuse se situe aux environs de +/-24kHz. According to another embodiment, the tolerance of the carrier is around +/- 24kHz.
La puissance d'émission est sélectionnée afin de pouvoir couvrir un rayon d'environ un kilomètre autour de ladite station radio, et proposer une durée de vie du capteur d'environ 4 ans avec 8 émissions par jour, à la place d'une émission toutes les 2 minutes avec un capteur sans fil intégré à une roue standard, pour une durée de vie similaire de 4 ans. The transmission power is selected so that it can cover a radius of about one kilometer around the radio station, and offer a sensor life of about 4 years with 8 transmissions per day, instead of a broadcast. every 2 minutes with a wireless sensor built into a standard wheel, for a similar life of 4 years.
Les concepts fondamentaux de l'invention venant d'être exposés ci-dessus dans leur forme la plus élémentaire, d'autres détails et caractéristiques ressortiront plus clairement à la lecture de la description qui suit et en regard des dessins annexés, donnant à titre d'exemple non limitatif, un mode de réalisation d'un procédé et d'un dispositif de surveillance conformes à l'invention. The fundamental concepts of the invention having been exposed above in their most basic form, other details and characteristics will emerge more clearly on reading the description which follows and with reference to the accompanying drawings, giving by way of non-limiting example, an embodiment of a method and a monitoring device according to the invention.
BRÈVE DESCRIPTION DES DESSINS BRIEF DESCRIPTION OF THE DRAWINGS
La figure 1 est un dessin schématique illustrant l'art antérieur des communications entre un sous-ensemble roulant et un réseau ; Figure 1 is a schematic drawing illustrating the prior art of communications between a rolling subassembly and a network;
La figure 2 est un dessin schématique illustrant les communications selon un mode de réalisation de l'invention entre un sous-ensemble roulant et une antenne ; Figure 2 is a schematic drawing illustrating communications according to one embodiment of the invention between a rolling subassembly and an antenna;
La figure 3 est un dessin schématique des différentes communications envisagées pour la mise en oeuvre de l'invention. DESCRIPTION D'UN MODE PRÉFÉRÉ DE RÉALISATION Figure 3 is a schematic drawing of the various communications envisaged for the implementation of the invention. DESCRIPTION OF A PREFERRED EMBODIMENT
Un mode de réalisation d'une installation de l'art antérieur est illustré sur le dessin de la figure 1. Comme illustré sur ce dessin, un camion référencé C dans son ensemble comprend une remorque 100 et un tracteur 200. One embodiment of an installation of the prior art is illustrated in the drawing of Figure 1. As illustrated in this drawing, a truck referenced C as a whole comprises a trailer 100 and a tractor 200.
Les pneumatiques des roues de la remorque 100 et ceux du tracteur 200 accueillent un capteur 300 de pression et/ou de température qui sont équipés d'un module d'émission pour transmettre les données mesurées à une unité de réception et de transmission, l'un 110 étant présent sur le sous-ensemble roulant formé par la remorque 100 et un autre 210 étant présent sur le sous-ensemble roulant formé par le tracteur 200. La remorque 100 et le tracteur 200 peuvent être équipés d'autres capteurs ou d'autres émetteurs 120, 220 à des fins de mises en œuvre d'autres fonctions telles : The tires of the wheels of the trailer 100 and those of the tractor 200 receive a pressure and / or temperature sensor 300 which are equipped with a transmission module for transmitting the measured data to a reception and transmission unit, the a 110 being present on the rolling subassembly formed by the trailer 100 and another 210 being present on the rolling sub-assembly formed by the tractor 200. The trailer 100 and the tractor 200 may be equipped with other sensors or other transmitters 120, 220 for the purpose of implementing other functions such as:
- mesure de la température d'une remorque de transport frigorifique,- measuring the temperature of a refrigerated transport trailer,
- détection de l'ouverture des portes, - detection of the opening of the doors,
- émission d'un code d ' authentification de la remorque ou du tracteur, - issue of an authentication code for the trailer or tractor,
- etc.. - etc.
Classiquement, les capteurs 300 de roue, les autres capteurs ou émetteurs 120 et 220 communiquent par radiofréquence de façon unidirectionnelle à l'unité de réception et de transmission 110 ou 210 embarquée dans le sous-ensemble roulant auquel ils appartiennent. Ces unités de réception 110 et 210 communiquent entre elles de façon bidirectionnelle. L'unité de réception et de transmission 210 équipant le tracteur 200 est en outre en liaison filaire ou non avec une unité centrale 400 installée sur le tracteur 200 et susceptible de communiquer avec l'extérieur avec un réseau R ou un ordinateur P par tout moyen de communication. Conventionally, the wheel sensors 300, the other sensors or transmitters 120 and 220 communicate radiofrequency unidirectionally to the receiving and transmission unit 110 or 210 embedded in the rolling subassembly to which they belong. These receiving units 110 and 210 communicate with each other bidirectionally. The reception and transmission 210 equipping the tractor 200 is also in wire connection or not with a central unit 400 installed on the tractor 200 and capable of communicating with the outside with a network R or a computer P by any means of communication.
Comme illustrée sur le dessin de la figure 2, le procédé et le dispositif de l'invention proposent d'installer une station de base S équipée d'une antenne A ou un réseau de stations constitué par une pluralité d'antennes A (non illustré) et d'adapter le module d'émission des capteurs 300', 120' et autres émetteurs 220' de façon à créer une liaison directe entre lesdits capteurs et émetteurs 300', 120', 220' et l'antenne A. As illustrated in the drawing of FIG. 2, the method and the device of the invention propose to install a base station S equipped with an antenna A or a network of stations constituted by a plurality of antennas A (not shown ) and to adapt the transmission module of the sensors 300 ', 120' and other transmitters 220 'so as to create a direct link between said sensors and transmitters 300', 120 ', 220' and the antenna A.
Les unités de réception et de transmission 110 et 210 pourraient être conservées mais ne présentent plus la fonction de transmission des données issues des capteurs et autre émetteurs 220'. Ainsi, l'invention a pour avantage de ne plus nécessiter la présence de ces unités qui ont donc été enlevées de cette figure 2. The reception and transmission units 110 and 210 could be retained but no longer have the function of transmitting data from the sensors and other transmitters 220 '. Thus, the invention has the advantage of no longer requiring the presence of these units which have been removed from this Figure 2.
Le dessin de la figure 3 illustre un mode de réalisation préféré mais non limitatif des possibilités de communication proposées à partir d'un capteur 300' conforme à l'invention. Ce capteur 300' positionné dans le pneumatique de la roue d'un véhicule transmet les données mesurées par une onde radio unidirectionnelle Fl directement vers une station radio extérieure ou station de base S comprenant une antenne A de réception. Cette station de base S communique F2 avec un réseau ou fait partie d'un réseau. Elle communique également avec un ordinateur P via un réseau ethernet F2. La station de base S transmet également F4 des données au capteur 300' qui est alors équipé d'un module de réception adapté. The drawing of FIG. 3 illustrates a preferred but nonlimiting embodiment of the communication possibilities proposed from a sensor 300 'according to the invention. This sensor 300 'positioned in the tire of the wheel of a vehicle transmits the measured data by a unidirectional radio wave F1 directly to an external radio station or base station S comprising a receiving antenna A. This base station S communicates F2 with a network or is part of a network. It also communicates with a computer P via an Ethernet network F2. The base station S also transmits F4 data to the sensor 300 'which is then equipped with a suitable receiving module.
Ce capteur 300' communique également avec un outil de diagnostic portable 500 par des ondes de radiofréquence pour l'émission F5 et par des ondes de basse fréquence pour la réception F6. Cet outil communique avec ledit ordinateur P par tout moyen F7. This sensor 300 'also communicates with a portable diagnostic tool 500 by radiofrequency waves for the F5 emission and by low frequency waves for the F6 reception. This tool communicates with said computer P by any means F7.
On comprend que le procédé et le dispositif, qui viennent d'être ci-dessus décrits et représentés, l'ont été en vue d'une divulgation plutôt que d'une limitation. Bien entendu, divers aménagements, modifications et améliorations pourront être apportés à l'exemple ci-dessus, sans pour autant sortir du cadre de 1 ' invention . It is understood that the method and the device, which have just been described and shown above, have been for the purpose of disclosure rather than limitation. Of course, various arrangements, modifications and improvements may be made to the example above, without departing from the scope of the invention.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1752716 | 2017-03-30 | ||
| FR1752716A FR3064798A1 (en) | 2017-03-30 | 2017-03-30 | METHOD AND DEVICE FOR MONITORING PARAMETERS FOR LAND VEHICLES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2018178580A1 true WO2018178580A1 (en) | 2018-10-04 |
Family
ID=59031153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2018/050776 WO2018178580A1 (en) | 2017-03-30 | 2018-03-29 | Method and device for monitoring parameters for ground vehicles |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR3064798A1 (en) |
| WO (1) | WO2018178580A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611898A (en) * | 2019-10-11 | 2019-12-24 | 中铁轨道交通装备有限公司 | High-reliability vehicle-ground communication system based on Internet of things |
| CN113032208A (en) * | 2021-03-08 | 2021-06-25 | 安徽大学 | Intelligent cold chain vehicle system based on LoRa and measurement and control method |
| CN115184863A (en) * | 2022-09-13 | 2022-10-14 | 北京易控智驾科技有限公司 | Positioning method, positioning device, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120038492A1 (en) * | 2010-08-11 | 2012-02-16 | The Boeing Company | System and Method to Assess and Report the Health of a Tire |
| WO2012167357A1 (en) | 2011-06-06 | 2012-12-13 | Sst Wireless Inc. | Method and apparatus for wireless monitoring of tire conditions |
| EP2727751A1 (en) * | 2012-11-02 | 2014-05-07 | Ateq Corporation | High volume vehicle inspection system and methods |
| US20160229234A1 (en) * | 2013-09-20 | 2016-08-11 | Komatsu Ltd. | Tire abnormality management system and tire abnormality management method |
-
2017
- 2017-03-30 FR FR1752716A patent/FR3064798A1/en not_active Withdrawn
-
2018
- 2018-03-29 WO PCT/FR2018/050776 patent/WO2018178580A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120038492A1 (en) * | 2010-08-11 | 2012-02-16 | The Boeing Company | System and Method to Assess and Report the Health of a Tire |
| WO2012167357A1 (en) | 2011-06-06 | 2012-12-13 | Sst Wireless Inc. | Method and apparatus for wireless monitoring of tire conditions |
| EP2727751A1 (en) * | 2012-11-02 | 2014-05-07 | Ateq Corporation | High volume vehicle inspection system and methods |
| US20160229234A1 (en) * | 2013-09-20 | 2016-08-11 | Komatsu Ltd. | Tire abnormality management system and tire abnormality management method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611898A (en) * | 2019-10-11 | 2019-12-24 | 中铁轨道交通装备有限公司 | High-reliability vehicle-ground communication system based on Internet of things |
| CN113032208A (en) * | 2021-03-08 | 2021-06-25 | 安徽大学 | Intelligent cold chain vehicle system based on LoRa and measurement and control method |
| CN113032208B (en) * | 2021-03-08 | 2022-09-27 | 安徽大学 | A LoRa-based intelligent cold chain vehicle system and measurement and control method |
| CN115184863A (en) * | 2022-09-13 | 2022-10-14 | 北京易控智驾科技有限公司 | Positioning method, positioning device, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3064798A1 (en) | 2018-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018178580A1 (en) | Method and device for monitoring parameters for ground vehicles | |
| EP1966741B1 (en) | Radiofrequency communication method and device | |
| EP3904127B1 (en) | Device for electronic system for checking the pressure of the tyres of a motor vehicle | |
| FR2913371A1 (en) | METHOD AND SYSTEM FOR CONTROLLING TIRES. | |
| FR3013907A1 (en) | SYSTEM FOR DYNAMIC READING OF TRANSPONDER DATA | |
| EP1353812A1 (en) | Method for automatically locating a motor vehicle wheel and corresponding locating unit | |
| CA2428371A1 (en) | System for monitoring tyres of a vehicle comprising a device automatically locating wheel transmitters | |
| FR2923414A1 (en) | METHOD AND DEVICE FOR IDENTIFYING LOGON SENSORS IN TIRES | |
| EP2677477B1 (en) | Communication device of a system for monitoring the wheels of a vehicle and communication method | |
| FR3043288A1 (en) | WIRELESS DATA COMMUNICATION SYSTEM | |
| EP2553492A1 (en) | Method and device for signaling the presence of a potential obstacle, such as a pedestrian, to a vehicle driver, and in particular a machine driver | |
| FR3075550A1 (en) | METHOD AND SYSTEM FOR DETECTING AND TRACING A VOTED WHEEL | |
| FR3072524A1 (en) | SELF-LOCATION METHOD OF SENSORS EQUIPPING THE WHEELS OF A VEHICLE | |
| WO2008132088A1 (en) | Tracking method and device, and related computer software product, storage medium and radiocommunication module | |
| FR2563028A1 (en) | Method for data transmission by carrier waves between at least two elements, and device implementing this method | |
| WO2015110485A1 (en) | Communication device for an aircraft cabin | |
| FR2896362A1 (en) | RADIO COMMUNICATION MODULE WITH TRANSMISSION MEANS CONTROLLED BY INTERFERENCE DETECTION MEANS, DEVICE AND USE THEREOF | |
| EP2085941B1 (en) | Method for transmitting signals from electronic boxes mounted on the wheels of a vehicle, directed to a central unit mounted on said vehicle | |
| FR3097709A1 (en) | Identification and recognition procedures for transceiver modules in a motor vehicle | |
| FR2855894A1 (en) | MOBILE COMPONENT MANAGEMENT SYSTEM | |
| FR2889595A1 (en) | METHOD AND DEVICE FOR LOCATING THE POSITION OF A WHEEL OF A VEHICLE | |
| FR3157995A1 (en) | Method and device for communication between an electronic module and a remote control device | |
| WO2019229338A1 (en) | Method of detecting a change in the position of a wheel unit held on an associated wheel of a motor vehicle | |
| FR2897969A1 (en) | Trailer and tractor communicating device for e.g. goods transport, has module receiving information from trailer and from modules independent of trailer via bidirectional radio frequency link, and transmitting information to latter modules | |
| WO2023147929A1 (en) | Method for activating a vehicle function and associated activation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18723898 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 18723898 Country of ref document: EP Kind code of ref document: A1 |