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    • 3. 发明授权
    • Warning system, monitoring device and method for monitoring controlled device
    • 警告系统,监控装置及监控受控装置的方法
    • US08410934B2
    • 2013-04-02
    • US12786079
    • 2010-05-24
    • Shang Li
    • Shang Li
    • G08B13/14
    • G08B13/1427G08B21/0244G08B21/0255
    • A warning system includes a monitoring device and a controlled device, wherein the controlled device includes a wireless transmitter, a wireless receiver, a phase analyzer and a warning indicator. The wireless transmitter can transmit a detection signal, and then the controlled device responses to the detection signal and transmits a feedback signal. The wireless receiver can receive the feedback signal. The phase analyzer can analyze a phase difference between the detection signal and the feedback signal. The warning indicator can perform a warning action when the phase difference is greater than a preset value. Moreover, a method for monitoring a controlled device is disclosed in specification.
    • 警告系统包括监视设备和受控设备,其中受控设备包括无线发射器,无线接收器,相位分析器和警告指示器。 无线发射机可以发送检测信号,然后受控设备响应于检测信号并发送反馈信号。 无线接收器可以接收反馈信号。 相位分析仪可以分析检测信号和反馈信号之间的相位差。 当相位差大于预设值时,警告指示灯可以执行警告动作。 此外,在说明书中公开了用于监视受控装置的方法。