To provide an electronic key system and the like which are capable of avoiding establishment of illegal authentication while securing convenience of a user.SOLUTION: An electronic key system 100 is configured to include an authentication ECU 10 and a portable device 50. The authentication ECU 10 includes an authentication-side receiving unit 20 which can receive an RF wave Crf, an authentication-side transmitting unit 30 which transmits an LF wave Clf, and an intensity setting unit 45 which generates intensity information used for setting the transmission intensity of the RF wave Crf by the portable device 50 on the basis of the reception intensity of the RF wave Crf and transmits the intensity information from the authentication-side transmitting unit 30 by carrying the intensity information on the LF wave Clf. The portable device 50 includes a portable-side receiving unit 60 capable of receiving the LF wave Clf, a portable-side transmitting unit 70 for transmitting the RF wave Crf to the authentication ECU 10, and an intensity adjusting unit 82 for performing adjustment to suppress the transmission intensity of the RF wave Crf transmitted from the portable-side transmitting unit 70 on the basis of the received intensity information.SELECTED DRAWING: Figure 3

    【課題】ユーザの利便性を確保しつつ、不正な認証の成立の回避が可能となる電子キーシステム等の提供。【解決手段】電子キーシステム100は、認証ECU10及び携帯機50を含む構成である。認証ECU10は、RF波Crfを受信可能な認証側受信部20と、LF波Clfを送信する認証側送信部30と、携帯機50にてRF波Crfの送信強度の設定に用いられる強度情報を、RF波Crfの受信強度に基づき生成し、当該強度情報をLF波Clfに乗せて認証側送信部30から送信させる強度設定部45と、を備えている。携帯機50は、LF波Clfを受信可能な携帯側受信部60と、認証ECU10へ向けてRF波Crfを送信する携帯側送信部70と、受信した強度情報に基づき、携帯側送信部70から送信するRF波Crfの送信強度を抑える調整を行う強度調整部82と、を備えている。【選択図】図3


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    Title :

    ELECTRONIC KEY SYSTEM, AUTHENTICATION DEVICE AND PORTABLE DEVICE


    Additional title:

    電子キーシステム、認証機、及び携帯機


    Contributors:
    URABE KENJI (author)

    Publication date :

    2020-03-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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