发明名称 |
Micro motion sensor |
摘要 |
A microwave motion sensor for detecting multiple levels of motion of a target is disclosed. The motion sensor includes a transceiver for broadcasting a signal into a predetermined area and receiving a reflected signal with a receiver for producing first and second directional signals. A signal conditioning circuit is provided for amplifying the first and second directional signals and digitizing the directional signals. The signal conditioning circuit includes a micro motion amplifier for separately amplifying one of the directional signals and producing a micro motion signal. A processor is provided for receiving the first and second directional signals transmitted by the signal conditioning circuit, and for receiving the micro motion signal. The processor includes a circuit for analyzing the directional signals, and a circuit for comparing the micro motion signal to a threshold. The processor is capable of adaptively switching between a first mode for detecting a threshold level of motion, a second mode for detecting a level of motion which is less than the threshold level of motion, and a third mode for detecting a level of motion which is greater than the threshold level of motion.
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申请公布号 |
US5903217(A) |
申请公布日期 |
1999.05.11 |
申请号 |
US19970954532 |
申请日期 |
1997.10.21 |
申请人 |
MICROWAVE SENSORS, INC. |
发明人 |
STANCZAK, MARK S.;LADD, RICKY J.;RAU, ROBERT S.;MILLER, GARY L. |
分类号 |
G01S7/00;G01S7/285;G01S13/50;G01S13/56;G01S13/58;(IPC1-7):G08B13/18 |
主分类号 |
G01S7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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