A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
UNAUTHORIZED COMMUNICATION ESTABLISHMENT PREVENTION SYSTEM
PROBLEM TO BE SOLVED: To provide an unauthorized communication establishment prevention system capable of determining unauthorized establishment of communication, without using a system for monitoring vibration generated at an electronic key.SOLUTION: A directivity switching unit 26 randomly switches directivity of a super wide band radio wave transmission antenna 22 to vary a reflection state of a super wide band radio wave Sa in a space (closed space, the inside of a vehicle) in which an electronic key 2 exists. A communication propriety determination unit 27 determines the propriety of communication for ID collation on the basis of a result of reflection wave reception at a super wide band radio wave reception antenna 23.SELECTED DRAWING: Figure 1
【課題】電子キーに発生する振動を監視する方式を用いずに、通信の不正成立を判定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】指向性切替部２６は、超広帯域電波送信アンテナ２２の指向性をランダムに切り替えることにより、電子キー２が存在する空間（閉鎖な空間である車内）において、超広帯域電波Ｓａの反射状態を変化させる。そして、通信正否判定部２７は、超広帯域電波受信アンテナ２３においての反射波の受信結果に基づき、ＩＤ照合の通信の正否を判定する。【選択図】図１
UNAUTHORIZED COMMUNICATION ESTABLISHMENT PREVENTION SYSTEM
PROBLEM TO BE SOLVED: To provide an unauthorized communication establishment prevention system capable of determining unauthorized establishment of communication, without using a system for monitoring vibration generated at an electronic key.SOLUTION: A directivity switching unit 26 randomly switches directivity of a super wide band radio wave transmission antenna 22 to vary a reflection state of a super wide band radio wave Sa in a space (closed space, the inside of a vehicle) in which an electronic key 2 exists. A communication propriety determination unit 27 determines the propriety of communication for ID collation on the basis of a result of reflection wave reception at a super wide band radio wave reception antenna 23.SELECTED DRAWING: Figure 1
【課題】電子キーに発生する振動を監視する方式を用いずに、通信の不正成立を判定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】指向性切替部２６は、超広帯域電波送信アンテナ２２の指向性をランダムに切り替えることにより、電子キー２が存在する空間（閉鎖な空間である車内）において、超広帯域電波Ｓａの反射状態を変化させる。そして、通信正否判定部２７は、超広帯域電波受信アンテナ２３においての反射波の受信結果に基づき、ＩＤ照合の通信の正否を判定する。【選択図】図１
UNAUTHORIZED COMMUNICATION ESTABLISHMENT PREVENTION SYSTEM
通信不正成立防止システム
KOSUGI MASANORI (author)
2017-02-16
Patent
Electronic Resource
Japanese
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