发明名称 |
Intrusion detection system |
摘要 |
A pressure sensitive perimeter intrusion detector comprises at least two pressure sensitive housing members adapted for the transmission of acoustic waves in response to pressure applied to the exterior of the housing members. Each housing member is capable of providing a first electric signal in response to seismic waves or ground vibrations. In addition, distributed along the housing members are pressure-sensing elements for detecting pressure applied along the housing members. These pressure-sensing elements for each housing member provide a second electric signal having substantially no time delay. The first and second electric signals are transmitted to an evaluation circuit adapted to produce an alarm signal in response to the detection of an intrusion occurrence.
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申请公布号 |
US5021766(A) |
申请公布日期 |
1991.06.04 |
申请号 |
US19890372317 |
申请日期 |
1989.06.28 |
申请人 |
CERBERUS AG |
发明人 |
GENAEHR, RUDOLF;MAHLER, HANSJUERG |
分类号 |
G08B13/20 |
主分类号 |
G08B13/20 |
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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