Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ON-VEHICLE DEVICE, PORTABLE MACHINE, AND VEHICLE WIRELESS COMMUNICATION SYSTEM
PROBLEM TO BE SOLVED: To provide a technique for reducing the danger of relay attacking in door lock releasing.SOLUTION: An LF transmission unit 32 transmits a request signal, a first measurement signal, and a second measurement signal to a portable machine. In this case, the LF transmission unit 32 transmits the second measurement signal to the portable machine 12 with transmission intensity different from that of the first measurement signal. An UHF reception unit 34 receives, from the portable machine 12, a response signal including information about the reception intensity of the first measurement signal and information about the reception intensity of the second measurement signal. Determination is carried out for the portable machine 12 on the basis of a relation ship between the information about the reception intensity of the first measurement signal and the information about the reception intensity of the second measurement signal included in the response signal received by the UHF reception unit 34 and a relationship between the transmission intensity of the first measurement signal and the transmission intensity of the second measurement signal transmitted from the LF transmission unit 32.SELECTED DRAWING: Figure 3
【課題】ドアロック解錠におけるリレーアタックの危険性を低減する技術を提供する。【解決手段】ＬＦ送信部３２は、リクエスト信号、１回目の測定用信号、２回目の測定用信号を携帯機に送信する。ここで、ＬＦ送信部３２は、１回目の測定用信号の送信強度とは異なった送信強度によって２回目の測定用信号を携帯機１２に送信している。ＵＨＦ受信部３４は、携帯機１２から、１回目の測定用信号の受信強度に関する情報と、２回目の測定用信号の受信強度に関する情報とが含まれたレスポンス信号を受信する。ＵＨＦ受信部３４において受信したレスポンス信号に含まれた１回目の測定用信号の受信強度に関する情報と、２回目の測定用信号の受信強度に関する情報との関係と、ＬＦ送信部３２から送信した１回目の測定用信号の送信強度と、２回目の測定用信号の送信強度との関係とをもとに、携帯機１２に対する判定がなされる。【選択図】図３
ON-VEHICLE DEVICE, PORTABLE MACHINE, AND VEHICLE WIRELESS COMMUNICATION SYSTEM
PROBLEM TO BE SOLVED: To provide a technique for reducing the danger of relay attacking in door lock releasing.SOLUTION: An LF transmission unit 32 transmits a request signal, a first measurement signal, and a second measurement signal to a portable machine. In this case, the LF transmission unit 32 transmits the second measurement signal to the portable machine 12 with transmission intensity different from that of the first measurement signal. An UHF reception unit 34 receives, from the portable machine 12, a response signal including information about the reception intensity of the first measurement signal and information about the reception intensity of the second measurement signal. Determination is carried out for the portable machine 12 on the basis of a relation ship between the information about the reception intensity of the first measurement signal and the information about the reception intensity of the second measurement signal included in the response signal received by the UHF reception unit 34 and a relationship between the transmission intensity of the first measurement signal and the transmission intensity of the second measurement signal transmitted from the LF transmission unit 32.SELECTED DRAWING: Figure 3
【課題】ドアロック解錠におけるリレーアタックの危険性を低減する技術を提供する。【解決手段】ＬＦ送信部３２は、リクエスト信号、１回目の測定用信号、２回目の測定用信号を携帯機に送信する。ここで、ＬＦ送信部３２は、１回目の測定用信号の送信強度とは異なった送信強度によって２回目の測定用信号を携帯機１２に送信している。ＵＨＦ受信部３４は、携帯機１２から、１回目の測定用信号の受信強度に関する情報と、２回目の測定用信号の受信強度に関する情報とが含まれたレスポンス信号を受信する。ＵＨＦ受信部３４において受信したレスポンス信号に含まれた１回目の測定用信号の受信強度に関する情報と、２回目の測定用信号の受信強度に関する情報との関係と、ＬＦ送信部３２から送信した１回目の測定用信号の送信強度と、２回目の測定用信号の送信強度との関係とをもとに、携帯機１２に対する判定がなされる。【選択図】図３
ON-VEHICLE DEVICE, PORTABLE MACHINE, AND VEHICLE WIRELESS COMMUNICATION SYSTEM
車載器、携帯機、及び車両用無線通信システム
HAYASHI NAOKI (Autor:in)
15.06.2017
Patent
Elektronische Ressource
Japanisch
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