• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a wireless communication device between two vehicles (VE) and (VD), each vehicle (VE) (VD) being equipped with two antennas arranged at compatible and suitable locations, including a first antenna called "transmitting antenna -reception "(AE) and a second antenna called" receiving antenna ", (AR). The "receiving antenna" (AR) of each vehicle (VE) (VD) has the function of detecting and receiving the signals emitted by the other vehicle and the "transceiver antenna" (AE) has two functions, one of which first function of transmitting signals omnidirectionally and another function consisting of combining with the "receiving antenna" (AR) of the same vehicle via a computer (CA), detecting and receiving the signals of another vehicle. The two antennas (AE) and (AR) are reconfigurable, their zone of action is divided into a plurality of angular sectors activated or deactivated by the computer (CA), to constitute by combining a high-performance and optimum detection zone adapted to traffic conditions.
    公开号:FR3033947A1
    申请号:FR1500522
    申请日:2015-03-17
    公开日:2016-09-23
    发明作者:Mondher Attia
    申请人:IPTECH；
    IPC主号:
    专利说明:

    [0001] 1 WIRELESS COMMUNICATION DEVICE BETWEEN TRANSPORT UNITS.
    [0002] We know that communications between transport units, especially motor vehicles, have and will have in the near future a major importance to allow the coexistence of more and more vehicles on the road networks of the world, to best guarantee their circulation and ensure their users maximum security.
    [0003] The inter-communication between the rolling vehicles is now done directly wirelessly from vehicle to vehicle (V2V) or by means of infrastructure equipment having an intermediary role between said vehicles (V2I). "Dedicated short-range communications" (DSRC) is a one-way or two-way, short or medium-range wireless communication specifically adapted for "intelligent transport systems" (ITS or ITS) ie -describe the communications between a vehicle and road infrastructure equipment or between two motor vehicles, designating all protocols and standards related to such communications.
    [0004] In Europe, these communications comply with the ITS G5 standard of the European Telecommunications Standards Institute (ETSI) or the 802-11p standard of the Institute of Electrical and Electronic Engineers (IEEE), but are limited in power authorized per channel. The onboard equipment must be able to transmit and receive to and from all directions and their range must be one kilometer, however the antennas currently used are omnidirectional and the effective range of the systems is of the order of 500 meters. Their performance is also limited in quality by the circumstances related to traffic, especially when the equipped vehicle follows or closely precedes a bulky vehicle such as a bus or a truck, when the equipped vehicle is traveling on different tracks and beside a bulky vehicle, or in case of traffic jam or heavy traffic where the number of vehicles in communication range disrupts the quality of communications.
    [0005] Sensitized by the imperfection of the devices currently used in the intercommunication between vehicles, the author of the present invention has imagined to provide an effective solution by using an innovative architecture of antennas 3033947 2 respecting the power limit d imposed emission and the omnidirectional character of it while lengthening the scope to actually lead to 1 kilometer and significantly improving the quality of communication.
    [0006] The device of the present invention is based on the finding that the maximum detection distance by a vehicle of the signals emitted by another vehicle is greater when the detector vehicle is equipped with a receiving antenna of greater directivity. On the other hand, the maximum detection distance increases by increasing the directivity of the receiving antenna.
    [0007] The invention therefore consists in using reconfigurable transmitting and receiving antennas acting on a plurality of sectors, preferably 18 sectors consisting of 8 sectors of 15 degrees of opening, 8 opposite sectors of 15 degrees of opening and two opposite intermediate sectors of 60 degrees of opening. These 15 reconfigurable antennas therefore have a reconfigurable directivity varying from 360 degrees to 15 degrees depending on the activation of the sectors. Advantageously, the invention consists in using two reconfigurable antennas per vehicle so as to transmit only with the transmitting reconfigurable antenna 20 and receive the signals emitted by another vehicle by combining the transmitter and receiver antennas of the vehicle, both reconfigurable. The emission is thus effected by the transmitting antenna configured to emit 360 degrees and thus rendered omnidirectional, like the current transmitting antennas 25. The reception is then ensured by the combination of the two transmitting and receiving antennas of the vehicle, so as to obtain a maximum range and an optimum communication quality by activating the different sectors of one and the other of the two antennas combined, according to the circumstances of circulation.
    [0008] The state of the art in the field of intercommunication between vehicles has not revealed any device using two reconfigurable antennas per vehicle, including an omnidirectional transmitting antenna for transmitting radio signals, associated with the combination of the two transmitting reconfigurable antennas and receiver, to receive the signals emitted by another vehicle.
    [0009] In the state of the art, mention will be made of the PCT International Patent of German Origin CONTINENTAL AUTOMOTIVE GMBH filed on December 23, 2010 and published on June 28, 2012 under the number WO 2012/084844 A2 which mentions two antennas placed in the same vehicle and communicating with each other by means of a unit 5 placed in a rearview mirror or a sensor placed in the windshield or bumper of the vehicle, which in no way describes the mode intercommunication between said two antennas. This patent makes no mention of antennas reconfigurable according to the traffic conditions which is a basic feature of this patent.
    [0010] The present invention relates to a wireless communication device between two vehicles characterized in that each of the communicating vehicles is equipped with a pair of antennas known as "smart antennas"), reconfigurable according to the traffic conditions of the one and the other vehicles, the omnidirectional transmission to 15 other vehicles being operated by one of the two "smart antennas") and the optimum reception of the signals emitted by other equipped vehicles being operated by the two "smart antennas") combined, to ensure optimum quality of communication regardless of traffic conditions and a significant increase in range.
    [0011] The basis of the present invention is based on the fact that the detection distance by a detector vehicle of the omnidirectional emission coming from the transmitting antenna of another transmitting vehicle increases as the directivity increases. the receiving antenna of said detector vehicle increases.
    [0012] Thus, the more the receiving antenna of the detector vehicle is directional, that is, the smaller its detection area, the greater is the maximum detection distance separating said detector vehicle from the transmitting vehicle. It is on such findings that the author of the present invention has devised the functional combination of two antennas installed on each vehicle, each of these antennas acting on a plurality of precise angular sectors and being configurable by computer according to the conditions of the invention. traffic and the situations encountered on the road network.
    [0013] According to the preferred embodiment of the invention, the wireless communication device consists of two separate and distinct intelligent antennas installed in one and the same vehicle, each of said "smart antennas" being reconfigurable by means of FIG. a computer acting on one and the other of said "smart antennas" to adapt their configuration to the traffic conditions and substantially optimize the detection distance to achieve the regulatory values imposed.
    [0014] According to the preferred embodiment of the invention, each reconfigurable "smart antenna" present inside a communicating vehicle has a 360 ° action zone divided into a plurality of angular sectors, ie 24 sectors. angular of 150 aperture.
    [0015] Thus, each "intelligent antenna" reconfigurable has a directivity that can vary between 150 and 360 ° depending on the angular sectors activated. According to the preferred embodiment of the invention, one of the two reconfigurable smart antennas present in a vehicle is activated mainly for transmitting signals to other vehicles but also in combination with the second one. intelligent antenna reconfigurable of the same vehicle, for receiving signals transmitted by the transmitting antenna of another communicating vehicle. It is hereinafter referred to as "transmitting antenna - receiver".
    [0016] According to the preferred embodiment of the invention, one of the two "reconfigurable intelligent antennas" present in the same vehicle is activated only for the reception of the signals transmitted by the transmitting antenna of another communicating vehicle. -after designated "receiving antenna". It is activated in combination with the "transceiver antenna" to ensure reception.
    [0017] According to the preferred embodiment of the invention, all the angular sectors of the "transmitting-receiving antenna" can be activated when said antenna is transmitting signals intended for the other communicating vehicles. The emission is then carried out over 360 ° around the emission point and the reconfigurable "transceiver antenna" is omnidirectional. According to the preferred embodiment of the invention, when receiving signals from other vehicles, the two reconfigurable "smart antennas" of a vehicle are activated, the "transmitting-receiving antenna" being activated on the angular sectors ranging from + 15 ° to + 165 ° and from -15 ° to -165 ° and the "receiving antenna") can be activated only on angular sectors ranging from -45 ° to + 450 and -135 ° at + 135 °. The "receiving antenna" output signals are amplified before being added to those of "transceiver antenna" and transmitted to the computer. According to the preferred embodiment of the invention, the choice of the activated sectors of each of the reconfigurable "smart antennas" is: "transmitting-receiving antenna") and the "receiving antenna" is realized by the computer which, depending on the Circulation conditions determines the directivity of each of the two "smart antennas") reconfigurable. The situations described below show examples of configuration of the detection sectors of said "reconfigurable smart antennas". In urban areas where traffic speed is reduced, the presence of crossings, roundabouts and other obstacles does not justify a maximum detection distance. Only the angular sectors from + 450 to + 1350 and - 45 to - 1350 of "transmitting-receiving antenna") and the angular sectors ranging from -45 ° to + 45 ° and -15 135 ° to + 135 ° of the "Receiving antenna") will then be activated resulting in a sufficient range of the order of 500 meters. In a suburban environment where the speed limit is higher, the sinuosity of the road and the geographical obstacles justify a wider range and a wider detection angle. In this situation, the angular sectors ranging from + 30 ° to + 150 ° and from -30 ° to-150 ° from the "transmitting-receiving antenna") and the angular sectors ranging from -30 ° to + 30 ° and from - 150 ° to + 150 ° of the "receiving antenna") will then be activated resulting in a range greater than 500 meters. In highway traffic where the speed limit is much higher and the routes much more straight, a maximum range is desired with a detection angle not requiring a large opening. Sectors ranging from + 15 ° to + 165 ° and from -15 ° to -165 ° from the "transmitting-receiving antenna") and the sectors from -15 ° to + 150 and from -165 ° to + 165 ° from the "receiving antenna" will then be activated. In traffic with heavy traffic, the number of vehicles in circulation becomes important and the quality of communications can be affected. In order to restore an optimum communication, the activated sectors of the "receiving antenna" are widened as the vehicles are concentrated, the other sectors of the reconfigurable "intelligent antennas" adapt for a total compensation. For example, when the communicating vehicle rolls on the highway and the traffic becomes dense at the front of the vehicle, the number of sectors of the "receiving antenna" at the front of the vehicle carrying the sectors to - 30 ° + 30 °, the remaining sectors being modified accordingly to keep a detection zone of 360 °.
    [0018] In the situation where the communicating vehicle rolls on the motorway and traffic becomes dense at the rear of the vehicle, the number of sectors of the "receiving antenna" at the rear of the vehicle is similarly widened. sectors to - 130 ° - 1300, the remaining sectors changing accordingly to always keep a detection zone 5 of 3600. When the communicating vehicle operates an overrun of a truck or bus likely to disturb communication by saturation due to signals Reflected, the sectors of + 150 to + 150 ° or-150 to -1500 of the "transceiver antenna" 10 directed towards said truck or bus, are successively deactivated and reactivated progressively as the overrun. The following description with reference to the accompanying drawings as non-limiting examples, will better understand how the invention can be put into practice.
    [0019] FIG. 1 is a diagram showing the increase of the detection distance by a detector vehicle of the signals emitted by the omnidirectional antenna of a transmitting vehicle, as a function of the directivity of the antenna of said detector vehicle.
    [0020] Figure 2 shows the division into angular sectors of the activity area of the reconfigurable intelligent antennas of the invention. Figure 3 shows the omnidirectional emission of the "transmitting-receiving antenna" when all of the angular sectors are activated.
    [0021] Figure 4 shows the limits of the reception area of each intelligent antenna within which the angular sectors are activated according to the traffic situations.
    [0022] FIG. 5 is an exemplary configuration of the angular sectors of the two "reconfigurable smart antennas" of a vehicle traveling in an urban environment. FIG. 6 is an example of configuration of the angular sectors of the two "smart antennas") reconfigurable of a vehicle traveling in a suburban environment.
    [0023] FIG. 7 is an exemplary configuration of the angular sectors of the two "smart antennas") reconfigurable of a vehicle traveling on a motorway network.
    [0024] According to the preferred embodiment of the invention, the wireless communication device consists of two independent "intelligent antennas" (AEs) (AR), separate and cooperating functionally with each other, installed in the same vehicle (VE). ) so that said vehicle (VE) can transmit signals to another vehicle (VD) equipped with the device and detect signals transmitted by another vehicle (VD) equipped with the device. The two antennas (AE) and (AR) are installed on or in each vehicle (VE) (VD) in suitable positions and locations and compatible with the configuration of said vehicles (VE) (VD) and the operation of the device. Each of the "intelligent antennas" (AE) (AR) equipping the same vehicle (VE) (VD) is reconfigurable by means of an on-board computer (AC) acting on one and the other of them for adapt their configuration to the traffic conditions and substantially optimize the detection distance (Dd) between the two communicating vehicles (VE) (VD). (See Fig 1, 4).
    [0025] According to the preferred embodiment of the invention, each "intelligent antenna") reconfigurable (AE) (AR) present inside the same vehicle (VE) and each "intelligent antenna" reconfigurable (AE) (AR) ) present inside another same vehicle (VD), has a 360 ° action zone divided into a plurality of angular sectors or 24 sectors of 150 opening.
    [0026] Thus, each reconfigurable "smart antenna" (AE) (AR) has a directivity that can vary between 150 and 360 ° depending on the angular sectors activated. (See Fig 2). According to the preferred embodiment of the invention, the reconfigurable "smart antenna" (AE) present in a vehicle (VE), called "transmitting-receiving antenna" (AE), is configured mainly to perform two functions: a first a function of transmitting signals to another vehicle (VD) and a second function of detecting the signals emitted by the "transceiver antenna" (AE) of another vehicle (VD), functionally combining with the second reconfigurable "smart antenna"), said "receiving antenna" (AR) of the same communicating vehicle (VE). (See Fig 4). According to the preferred embodiment of the invention, the "receiver antenna" reconfigurable (AR) present in a vehicle (VE) is configured exclusively to detect the signals emitted by the "transceiver antenna" (AE) of another vehicle (VD), functionally combining with the "transmitting-receiving antenna" (AE) of the communicating vehicle (VE). (See Fig 4, 5, 6, 7).
    [0027] According to the preferred embodiment of the invention, all of the "transmitting-receiving antenna" (AE) angular sectors of a vehicle (VE) can be activated when said "transmitting-receiving antenna" (AE) is transmitting signals to other vehicles (VD). The emission is then carried out on 3600 around the emission point and the reconfigurable "transmitting-receiving antenna" (AE) is made omnidirectional. (See Fig 3). According to the preferred embodiment of the invention, the detection by a vehicle (VE) of the signals emitted by another vehicle (VD) equipped with the same device is carried out by means of the two intelligent antennas equipping said vehicle (VE) either "Transceiver antenna") (AE) and "receiving antenna (AR), combined with each other by means of an on-board computer (AC) such that only the angular sectors of the detection zone of" transmitting-receiving antenna)) (AE) between + 150 to + 165 ° and-150 to -1650 and the angular sectors of the detection zone 15 of "receiving antenna"> (AR) between -45 ° to + 45 ° and - 135 ° to + 135 ° can be activated, the signals detected by the "receiving antenna" (AR) being amplified by the amplifiers (Ai) before being added to those of the "transmitting antenna- Receiver>) (AE) and transmitted to the onboard computer (AC). (See Fig 4).
    [0028] According to the preferred embodiment of the invention when the intelligent antennas (AE) and (AR) of a vehicle (VE) are receiving signals from another vehicle (VD), the angular sectors of the zone detection of the "transceiver antenna") (AE) and the angular sectors of the detection area of the "receiving antenna" (AR) are combined by the on-board computer (AC) so that the number active angular sectors of the detection area of the "receiving antenna" (AR) increases or decreases depending on the road network used, the speed of the vehicle (VE), the density and position of road traffic, the number active angular sectors of the detection zone of the "transmitting-receiving antenna" (AE) automatically changing accordingly to adapt and still maintain a 360 ° omnidirectional detection zone. According to the preferred embodiment of the invention, the choice of the activated sectors of each of the "intelligent antennas" reconfigurable (AE) (AR) is: "transmitting antenna-receiving)) (AE) and the" receiving antenna>) (AR) is performed by the on-board computer (CA) which, depending on the traffic conditions, determines the directivity of each of the two "smart antennas"> reconfigurable (AE) (AR). The examples below show detection sector configurations of said Reconfigurable Intelligent Antennas (AE) (AR) as a function of traffic conditions. For example, in urban areas where the traffic speed limit is reduced, the presence of crossings, roundabouts and other obstacles does not justify a maximum detection distance, only the angular sectors ranging from + 450 to +1350 and -45 to - 1350 of the "transmitting-receiving antenna" (AE) and the angular sectors going from - 450 to + 45 ° and - 135 ° to + 135 ° of the "receiving antenna" (AR) will then be activated resulting in a range sufficient on the order of 500 meters. (See Fig 5).
    [0029] By another example in the interurban area where the speed limit is higher, the sinuosity of the road and the geographical obstacles justify a wider range and a wider detection angle, the angular sectors ranging from + 30 ° to + 150 ° and -30 ° to-150 ° of the "transceiver antenna" (AE) and the angular sectors ranging from -30 ° to + 30 ° and from-150 ° to + 150 ° of the " receiving antenna)) (AR) will then be activated resulting in a range greater than 500 meters. (See Fig 6). By a last example in highway traffic where the speed limit is much higher and the routes much more straight and where a maximum range is desired with a detection angle does not require a large opening, sectors ranging from + 15 ° to + 165 ° and from -15 ° to -165 ° of the "transmitting-receiving antenna" (AE) and the sectors of -15 ° to + 15 ° and of -165 ° to + 165 ° of the "receiving antenna") (AR) will then be activated. (See Fig 7).
    [0030] In traffic with heavy traffic, the number of vehicles in circulation becomes important and the quality of communications may be affected. In order to restore optimum communication, the on-board computer (AC) broadens the activated areas of "receiving antenna" (AR) as the vehicles are concentrated, the other sectors of the "intelligent antennas" reconfigurable (AE) ( AR) adapting for total compensation up to 360 °. Thus, when a vehicle (VE) rolls on the highway and the traffic becomes dense in front of said vehicle (VE) the computer expands the number of sectors of the "receiving antenna" (AR) to the front of the vehicle (VE) bearing the sectors at -30 ° + 30 °, the remaining sectors being modified accordingly to keep a detection area of 360 °.
    [0031] In a situation where the vehicle (VE) rolls on the highway and the traffic becomes dense behind the vehicle (VE), the computer also widens the number of sectors of the "receiving antenna". > (AR) at the rear of the vehicle (VE) carrying the sectors at-130 ° + 130 °, the remaining sectors being modified accordingly to always keep a detection zone of 360 °. In a situation where a vehicle (VE) overtakes a truck or bus or is overtaken by a truck or bus, the quality of the communication may be momentarily degraded by the reflected signals likely to cause the saturation of the reception, the angular sectors of the emission zone of the "transmitting-receiving antenna") (AE) are successively inactivated and then reactivated according to the position of the truck or bus with respect to the vehicle (VE) and as and when exceeded. 15 20 25 30 35
    权利要求:
    Claims (6)
    [0001]
    REVENDICATIONS.1. Device for wireless communication between transport units, characterized in that it comprises two "intelligent antennas)) (AE) (AR) reconfigurable according to the traffic conditions by means of an on-board computer (CA), installed in the same vehicle (VE) and one of which is called "receiving antenna") (AR) is configured exclusively to detect the signals emitted by another vehicle (VD) and the other called "transceiver antenna") ( AE) is configured to perform two functions: a first function of transmitting signals to another vehicle (VD) and a second function of detecting the signals transmitted by another vehicle (VD), by combining with the "antenna receiver)) (AR) of the same vehicle (VE).
    [0002]
    2. Device for wireless communication between transport units according to claim 1, characterized in that each reconfigurable "intelligent antenna" (AE) present inside the same vehicle (VE) and each "intelligent antenna )) reconfigurable (AE) (AR) present inside another vehicle (VD), has a 360 ° action zone divided into a plurality of angular sectors or 24 angular sectors of 15 ° d opening, each of the "intelligent antennas)) reconfigurable (AE) (AR) thus having a directivity that can vary between 150 and 360 ° depending on the angular sectors activated.
    [0003]
    3. Wireless communication device between transport units according to the preceding claims, characterized in that all the angular sectors of the "transmitting-receiving antenna" (AE) of a vehicle (VE) can be activated when said " transceiver antenna)) (AE) is transmitting signals to other vehicles (VD), the emission being then carried out over 360 ° around the emission point and the "transmitting-receiving antenna") reconfigurable ( AE) made omnidirectional.
    [0004]
    4. Device for wireless communication between transport units according to any one of the preceding claims, characterized in that the detection by a vehicle (VE) of the signals transmitted by another vehicle (VD) equipped with the same device, is operated at means of the two intelligent antennas (AE) (AR) equipping said vehicle (VE) is the "transceiver antenna" (AE) and "receiving antenna (AR), combined with each other by means of a on-board computer (AC) such that only the angular sectors of the detection zone of the "transmitting-receiving antenna" (AE) situated between + 150 to + 165 ° and-150 to -165 ° and the angular sectors of the detection zone of the "receiving antenna" (AR) between -45 ° to + 45 ° and - 1350 to + 135 ° can be activated, the signals detected by the "receiving antenna" (AR) being amplified by amplifiers (Ai) before being added to those of transceiver antenna "(AE) and transmitted to the onboard computer 10 (AC).
    [0005]
    5. Wireless communication device between transport units according to any one of the preceding claims, characterized in that when the intelligent antennas (AE) and (AR) of a vehicle (VE) are receiving signals from 'another vehicle (VD), the angular sectors of the detection area of the' transmitting-receiving antenna '(AE) and the angular sectors of the' receiving antenna '(AR) detection zone are combined by the on-board computer (AC) in such a way that the number of active angular sectors of the detection zone of the "receiving antenna" (AR) 20 increases or decreases according to the road network used, the speed of the vehicle (VE) , the density and position of the road traffic, the number of active angular sectors of the detection zone of the "transceiver antenna" (AE) automatically changing accordingly to adapt and always maintain a detection zone omn directional 360 °. 25
    [0006]
    6. wireless communication device between transport units according to any one of the preceding claims, characterized in that when a vehicle (VE) undertakes overtaking a truck or bus or is overtaken by a truck or bus, Since the quality of the communication can be temporarily degraded by the reflected signals likely to cause saturation of the reception, the angular sectors of the transmitting-receiving antenna (AE) emission zone are successively inactivated and then reactivated according to the position. the truck or bus in relation to the vehicle (VE) and as and when exceeded. 35
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    同族专利:
    公开号 | 公开日
    FR3033947B1|2018-04-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1003239A2|1998-11-19|2000-05-24|Harada Industry Co., Ltd.|Antenna apparatus for use in Automobiles|WO2021019140A1|2019-08-01|2021-02-04|Psa Automobiles Sa|Communication system, method and device for a vehicle using radars|
    FR3099679A1|2019-08-01|2021-02-05|Psa Automobiles Sa|Method, device and system for vehicle communication using radars|
    FR3099681A1|2019-08-01|2021-02-05|Psa Automobiles Sa|Method, device and system for vehicle communication using radars|
    法律状态:
    2016-06-17| PLFP| Fee payment|Year of fee payment: 2 |
    2016-09-23| PLSC| Search report ready|Effective date: 20160923 |
    2017-02-20| PLFP| Fee payment|Year of fee payment: 3 |
    2018-02-19| PLFP| Fee payment|Year of fee payment: 4 |
    2021-05-16| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1500522A|FR3033947B1|2015-03-17|2015-03-17|WIRELESS COMMUNICATION DEVICE BETWEEN TRANSPORT UNITS|FR1500522A| FR3033947B1|2015-03-17|2015-03-17|WIRELESS COMMUNICATION DEVICE BETWEEN TRANSPORT UNITS|
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