| 摘要 |
A motion detection alarm for a bicycle including a motion detector with an input terminal and an output terminal. The output terminal is adapted for transmitting a motion detection signal only upon the receipt of an activation signal via the input terminal in combination with the motion detector sensing physical vibration at a level above a predetermined amount. Further provided is a speaker coupled to the output terminal of the motion detector for transmitting an audible high frequency alarm signal upon receipt of the motion detection signal. Also included is a receiver coupled to the input terminal of the motion detector. In operation, the receiver transmits an activation signal upon receipt of a remote signal via free space and further precludes the transmission of an activation signal upon the subsequent receipt of the remote signal. Finally, a remote signalling unit is included with an activation push button switch for transmitting via free space the remote signal for selectively activating the motion detector.
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