PROBLEM TO BE SOLVED: To provide a communication unauthorized establishment prevention system capable of simplifying the system.SOLUTION: A vehicle 1 transmits UWB radio waves from a UWB antenna 22 to an electronic key 2. On receiving the UWB radio waves, the electronic key 2 returns UHF radio waves as a response to the radio waves to the vehicle 1 by synchronizing the UHF radio waves with the received UWB radio waves. On receiving the UHF radio waves synchronized with the UWB radio waves, the vehicle 1 confirms timing of the pulse edges of the transmitted UWB radio waves and the pulse edges of the received UHF radio waves, and thereby determines whether communication is correct or not by ID verification.SELECTED DRAWING: Figure 1

    【課題】システムを簡素化することができる通信不正成立防止システムを提供する。【解決手段】車両1は、UWBアンテナ22からUWB電波を電子キー2に送信する。電子キー2は、UWB電波を受信したとき、この電波に対する応答としてUHF電波を車両1に返信するが、このUHF電波を、受信したUWB電波で同期をとる。車両1は、UWB電波と同期がとられたUHF電波を受信すると、送信したUWB電波のパルスエッジと、受信したUHF電波のパルスエッジのタイミングを確認することにより、ID照合の通信の正否を判定する。【選択図】図1


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    Title :

    COMMUNICATION UNAUTHORISED ESTABLISHMENT PREVENTION SYSTEM


    Additional title:

    通信不正成立防止システム


    Contributors:

    Publication date :

    2017-01-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04Q Wähltechnik , SELECTING / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / E05B LOCKS , Schlösser



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