Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
VEHICLE COMMUNICATION SYSTEM, ON-VEHICLE APPARATUS, AND PORTABLE DEVICE
PROBLEM TO BE SOLVED: To improve crime prevention property against a relay attack, and convenience and communication responsiveness of a user concerning a vehicle communication system including an on-vehicle apparatus and a portable device.SOLUTION: An on-vehicle apparatus 10 transmits a first response request signal, a second response request signal having a weaker intensity compared with the first response request signal, and a third response request signal having a weaker intensity compared with the second response request signal from an on-vehicle apparatus transmission section 2. A portable device 20 receives the respective response request signals, detects the intensities by a signal intensity detection section 21b, and returns a response signal including the intensities. When the response signals are received, a control section 1 of the on-vehicle apparatus 10 determines success/failure concerning a first condition that an intensity difference between the first response request signal and the second response request signal is larger than a first threshold, a second condition that an intensity difference between the second response request signal and the third response request signal is larger than a second threshold, and a third condition that an intensity difference between the first response request signal and the third response request signal is larger than a third threshold. When any one of the conditions is established, control of a door lock device 5 is permitted.SELECTED DRAWING: Figure 1
【課題】車載機と携帯機から成る車両通信システムにおいて、リレーアタックに対する防犯性と、利用者の利便性および通信応答性を向上させる。【解決手段】車載機１０は、車載機送信部２により、第１応答要求信号、第１応答要求信号より強度の弱い第２応答要求信号、および第２応答要求信号より強度の弱い第３応答要求信号を送信する。携帯機２０は、各応答要求信号を受信して、これらの強度を信号強度検出部２１ｂにより検出し、該強度を含んだ応答信号を返信する。車載機１０の制御部１は、応答信号を受信すると、第１応答要求信号と第２応答要求信号の強度差が第１閾値より大きいという第１条件、第２応答要求信号と第３応答要求信号の強度差が第２閾値より大きいという第２条件、第１応答要求信号と第３応答要求信号の強度差が第３閾値より大きいという第３条件の成否を判断する。いずれかの条件が成立すると、ドアロック装置５の制御が許可される。【選択図】図１
VEHICLE COMMUNICATION SYSTEM, ON-VEHICLE APPARATUS, AND PORTABLE DEVICE
PROBLEM TO BE SOLVED: To improve crime prevention property against a relay attack, and convenience and communication responsiveness of a user concerning a vehicle communication system including an on-vehicle apparatus and a portable device.SOLUTION: An on-vehicle apparatus 10 transmits a first response request signal, a second response request signal having a weaker intensity compared with the first response request signal, and a third response request signal having a weaker intensity compared with the second response request signal from an on-vehicle apparatus transmission section 2. A portable device 20 receives the respective response request signals, detects the intensities by a signal intensity detection section 21b, and returns a response signal including the intensities. When the response signals are received, a control section 1 of the on-vehicle apparatus 10 determines success/failure concerning a first condition that an intensity difference between the first response request signal and the second response request signal is larger than a first threshold, a second condition that an intensity difference between the second response request signal and the third response request signal is larger than a second threshold, and a third condition that an intensity difference between the first response request signal and the third response request signal is larger than a third threshold. When any one of the conditions is established, control of a door lock device 5 is permitted.SELECTED DRAWING: Figure 1
【課題】車載機と携帯機から成る車両通信システムにおいて、リレーアタックに対する防犯性と、利用者の利便性および通信応答性を向上させる。【解決手段】車載機１０は、車載機送信部２により、第１応答要求信号、第１応答要求信号より強度の弱い第２応答要求信号、および第２応答要求信号より強度の弱い第３応答要求信号を送信する。携帯機２０は、各応答要求信号を受信して、これらの強度を信号強度検出部２１ｂにより検出し、該強度を含んだ応答信号を返信する。車載機１０の制御部１は、応答信号を受信すると、第１応答要求信号と第２応答要求信号の強度差が第１閾値より大きいという第１条件、第２応答要求信号と第３応答要求信号の強度差が第２閾値より大きいという第２条件、第１応答要求信号と第３応答要求信号の強度差が第３閾値より大きいという第３条件の成否を判断する。いずれかの条件が成立すると、ドアロック装置５の制御が許可される。【選択図】図１
VEHICLE COMMUNICATION SYSTEM, ON-VEHICLE APPARATUS, AND PORTABLE DEVICE
車両通信システム、車載機、携帯機
ISHIHARA NAOYUKI (Autor:in) / TOMITA YOSUKE (Autor:in) / NISHIDAI TETSUO (Autor:in) / INAGUMA TAKAHIRO (Autor:in) / HAMADA KAZUYA (Autor:in) / OHATA HIROFUMI (Autor:in)
05.04.2018
Patent
Elektronische Ressource
Japanisch
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