A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
VEHICLE COMMUNICATION DEVICE, PORTABLE MACHINE, AND VEHICLE COMMUNICATION SYSTEM
PROBLEM TO BE SOLVED: To provide a vehicle communication device, a portable machine, and a vehicle communication system that can be properly defended against a relay attack.SOLUTION: The vehicle communication device is mounted on a vehicle and configured to communicate with a portable machine using a radio wave so as to control equipment on the vehicle, and includes: generation means for generating transmission data (20) including specification data (22) on signal intensity; transmission means for transmitting transmission data (20) using a radio wave; reception means for receiving a reply signal from the portable machine; and determination means for determining whether the reply signal is output by the regular portable machine based upon the signal intensity determined based upon the specification data (22) and intensity of the received reply signal.SELECTED DRAWING: Figure 4
【課題】リレーアタックから適切に防御できる車両通信装置、携帯機、および、車両通信システムを提供すること。【解決手段】この車両通信装置は、車両に搭載され、車両の装備を制御するために電波を用いて携帯機と通信する車両通信装置であって、信号強度の指定データ（２２）を含む送信データ（２０）を作成する作成手段と、電波を用いて送信データ（２０）を送信する送信手段と、携帯機から返送信号を受信する受信手段と、指定データ（２２）に基づき決定される信号強度と、受信された返送信号の強度とから、正規の携帯機が出力した返送信号か判定する判定手段と、を備える構成を採る。【選択図】図４
VEHICLE COMMUNICATION DEVICE, PORTABLE MACHINE, AND VEHICLE COMMUNICATION SYSTEM
PROBLEM TO BE SOLVED: To provide a vehicle communication device, a portable machine, and a vehicle communication system that can be properly defended against a relay attack.SOLUTION: The vehicle communication device is mounted on a vehicle and configured to communicate with a portable machine using a radio wave so as to control equipment on the vehicle, and includes: generation means for generating transmission data (20) including specification data (22) on signal intensity; transmission means for transmitting transmission data (20) using a radio wave; reception means for receiving a reply signal from the portable machine; and determination means for determining whether the reply signal is output by the regular portable machine based upon the signal intensity determined based upon the specification data (22) and intensity of the received reply signal.SELECTED DRAWING: Figure 4
【課題】リレーアタックから適切に防御できる車両通信装置、携帯機、および、車両通信システムを提供すること。【解決手段】この車両通信装置は、車両に搭載され、車両の装備を制御するために電波を用いて携帯機と通信する車両通信装置であって、信号強度の指定データ（２２）を含む送信データ（２０）を作成する作成手段と、電波を用いて送信データ（２０）を送信する送信手段と、携帯機から返送信号を受信する受信手段と、指定データ（２２）に基づき決定される信号強度と、受信された返送信号の強度とから、正規の携帯機が出力した返送信号か判定する判定手段と、を備える構成を採る。【選択図】図４
VEHICLE COMMUNICATION DEVICE, PORTABLE MACHINE, AND VEHICLE COMMUNICATION SYSTEM
車両通信装置、携帯機および車両通信システム
NAMBA HITOSHI (author) / SAITO MOTOO (author) / ITANI SATORU (author) / TAKIGAWA MASAMI (author)
2016-02-08
Patent
Electronic Resource
Japanese
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