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A platform for research: civil engineering, architecture and urbanism
COMMUNICATION UNAUTHORISED ESTABLISHMENT PREVENTION SYSTEM
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
COMMUNICATION UNAUTHORISED ESTABLISHMENT PREVENTION SYSTEM
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
COMMUNICATION UNAUTHORISED ESTABLISHMENT PREVENTION SYSTEM
通信不正成立防止システム
KOSUGI MASANORI (author) / MORI MEGUMI (author)
2017-01-12
Patent
Electronic Resource
Japanese
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