发明名称 |
Intrusion detection system including over-under passive infrared optics and a microwave transceiver |
摘要 |
<p>An intrusion detection system includes a microwave transceiver detecting motion in a protected space. The microwave transceiver generates a first signal. A first infrared sensor detects a source of infrared energy in a plurality of upper detection zones within the protected space. The first infrared sensor generates an upper sensor signal. A second infrared sensor detects a source of infrared energy in a plurality of lower detection zones positioned below the upper detection zones within the protected space and intersecting a floor surface within the protected space. The second infrared sensor generates a lower sensor signal. A processor receives the first signal, the upper sensor signal and the lower sensor signal. The processor generates an alarm signal in response to the first signal exceeding a threshold value. The threshold value is varied in response a relationship between the lower sensor signal and the upper sensor signal.</p> |
申请公布号 |
EP1587041(B1) |
申请公布日期 |
2010.08.11 |
申请号 |
EP20050008064 |
申请日期 |
2005.04.13 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
DIPOALA, WILLIAM S.;BERNARD, MICHAEL J. |
分类号 |
G08B13/24;G08B29/18 |
主分类号 |
G08B13/24 |
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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