发明名称 |
DUAL SENSOR INTRUDER ALARM |
摘要 |
A dual sensor intruder alarm (DSIA) for detecting an intruder in a security zone monitored by the DSIA comprising: a PIR sensor; an additional sensor; and a controller that determines an operating difference between the ambient temperature and a normative surface temperature of an intruder in the security zone; wherein if the operating difference is equal to or greater than a predetermined threshold difference, the controller determines whether an intruder is present in the security zone using signals from both the PIR sensor and the additional sensor and if the operating difference is less than the predetermined threshold difference, the controller uses signals from the additional sensor but not from the PIR sensor to determine presence of an intruder.
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申请公布号 |
WO03096294(A1) |
申请公布日期 |
2003.11.20 |
申请号 |
WO2002IL00365 |
申请日期 |
2002.05.12 |
申请人 |
ROKONET ELECTRONICS LTD.;ALKELAI, MOSHE;KARTOUN, DAVID |
发明人 |
ALKELAI, MOSHE;KARTOUN, DAVID |
分类号 |
G08B13/16;G08B13/19;G08B13/24;G08B29/18;(IPC1-7):G08B13/16 |
主分类号 |
G08B13/16 |
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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