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    • 22. 发明专利
    • Guard state setting apparatus
    • 保护状态设定装置
    • JP2003298539A
    • 2003-10-17
    • JP2002103540
    • 2002-04-05
    • Atsumi Electric Co Ltdアツミ電氣株式会社
    • KUBO KAZUYA
    • G08B23/00H04B1/59H04B5/02H04B17/00
    • PROBLEM TO BE SOLVED: To provide a guard state setting apparatus mounted with a radio frequency non-contact information identification system using a radio wave for detecting a broken antenna element for transmitting an interrogation radio wave. SOLUTION: An information storage medium 3 is fixedly placed at a prescribed position within a range at which an interrogation radio wave sent from an antenna 10 arrives in the inside of the guard state setting apparatus 1. A main control section 14 transmits an interrogation radio wave transmission command to a transmission/reception control section 13 by each prescribed period. Thus, the antenna 10 transmits the interrogation radio wave. The information storage means 3 transmits a response radio wave every time the medium 3 receives the interrogation radio wave. The main control section 14 judges the apparatus to be normal when the response message is registered in advance of judges the apparatus to be not normal when a regular response message is not received for a prescribed number of times even in a timing when the response message is to be received or no regular response message is received within a prescribed time after the regular response message is previously received and informs a guard apparatus about it via a communication line 16. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种安装有使用无线电波检测用于发送询问无线电波的破坏的天线元件的射频非接触信息识别系统的保护状态设置装置。 解决方案:信息存储介质3固定地放置在从天线10发送的询问无线电波到达保护状态设定装置1的内部的范围内的规定位置。主控制部14将 询问无线电波发送命令到发送/接收控制部分13。 因此,天线10发送询问无线电波。 信息存储装置3每当媒体3接收询问无线电波时发送响应无线电波。 主控制部分14,即使在响应消息是定时响应消息是定时响应消息未被接收到规定次数的情况下,当响应消息被注册时,判断装置不正常,主设备判断为正常 在先前接收到常规响应消息之后的规定时间内接收到或不接收到常规响应消息,并且经由通信线路16向卫兵装置通知它。(P)版权所有(C)2004,JPO