Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
VEHICLE COMMUNICATION SYSTEM, ON-VEHICLE MACHINE AND PORTABLE MACHINE
PROBLEM TO BE SOLVED: To provide a vehicle communication system, comprised of a portable machine and an on-vehicle machine, that has communication response improved and establishes communication even if noise is generated.SOLUTION: An on-vehicle machine 10 transmits a first response request signal including data by an on-vehicle machine transmission part 2(DR), and also transmits a second response request signal including no data and having a shorter signal length than the first response request signal by on-vehicle machine transmission parts 2(FR), 2(RE). A portable machine 20 transmits a response signal on receiving the first response request signal and the second response request signal. The portable machine 20 when failing to receive the first response request signal and the second response request signal normally as a noise detection part 21a detects noise transmits a retransmission request signal. On receiving the retransmission request signal, the on-vehicle machine 10 switches the transmission signal by a transmission signal switching part 1b, and retransmits the first response request signal by the respective on-vehicle machine transmission parts 2(DR), 2(FR), and 2(RE).SELECTED DRAWING: Figure 1
【課題】携帯機と車載機から成る車両通信システムにおいて、通信応答性を向上させかつノイズ発生時も通信を成立させる。【解決手段】車載機１０は、データを含んだ第１応答要求信号を車載機送信部２（ＤＲ）により送信するとともに、データを含まず第１応答要求信号より信号長が短い第２応答要求信号を車載機送信部２（ＦＲ）、２（ＲＥ）により送信する。携帯機２０は、第１応答要求信号と第２応答要求信号とを受信できた場合に、応答信号を送信する。また、携帯機２０は、ノイズ検出部２１ａによりノイズを検出して、第１応答要求信号と第２応答要求信号とを正常に受信できなかった場合に、再送要求信号を送信する。車載機１０は、再送要求信号を受信すると、送信信号を送信信号切替部１ｂにより切り替えて、各車載機送信部２（ＤＲ）、２（ＦＲ）、２（ＲＥ）により第１応答要求信号を再送する。【選択図】図１
VEHICLE COMMUNICATION SYSTEM, ON-VEHICLE MACHINE AND PORTABLE MACHINE
PROBLEM TO BE SOLVED: To provide a vehicle communication system, comprised of a portable machine and an on-vehicle machine, that has communication response improved and establishes communication even if noise is generated.SOLUTION: An on-vehicle machine 10 transmits a first response request signal including data by an on-vehicle machine transmission part 2(DR), and also transmits a second response request signal including no data and having a shorter signal length than the first response request signal by on-vehicle machine transmission parts 2(FR), 2(RE). A portable machine 20 transmits a response signal on receiving the first response request signal and the second response request signal. The portable machine 20 when failing to receive the first response request signal and the second response request signal normally as a noise detection part 21a detects noise transmits a retransmission request signal. On receiving the retransmission request signal, the on-vehicle machine 10 switches the transmission signal by a transmission signal switching part 1b, and retransmits the first response request signal by the respective on-vehicle machine transmission parts 2(DR), 2(FR), and 2(RE).SELECTED DRAWING: Figure 1
【課題】携帯機と車載機から成る車両通信システムにおいて、通信応答性を向上させかつノイズ発生時も通信を成立させる。【解決手段】車載機１０は、データを含んだ第１応答要求信号を車載機送信部２（ＤＲ）により送信するとともに、データを含まず第１応答要求信号より信号長が短い第２応答要求信号を車載機送信部２（ＦＲ）、２（ＲＥ）により送信する。携帯機２０は、第１応答要求信号と第２応答要求信号とを受信できた場合に、応答信号を送信する。また、携帯機２０は、ノイズ検出部２１ａによりノイズを検出して、第１応答要求信号と第２応答要求信号とを正常に受信できなかった場合に、再送要求信号を送信する。車載機１０は、再送要求信号を受信すると、送信信号を送信信号切替部１ｂにより切り替えて、各車載機送信部２（ＤＲ）、２（ＦＲ）、２（ＲＥ）により第１応答要求信号を再送する。【選択図】図１
VEHICLE COMMUNICATION SYSTEM, ON-VEHICLE MACHINE AND PORTABLE MACHINE
車両通信システム、車載機、携帯機
YAMAMOTO MASAHIRO (Autor:in) / SUZUKI TAKAYUKI (Autor:in)
22.03.2018
Patent
Elektronische Ressource
Japanisch
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