发明名称 |
Composite type crime preventive sensor |
摘要 |
A composite type crime preventive sensor processes output detection signals from a plurality of sensor units of mutually different detection systems for ranking the signals into a plurality of grades depending on signal level, and provides an intruder detection signal when a sum of ranked level values is above a preset reference value, whereby any risk of alarm failing and erroneous alarming can be effectively minimized.
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申请公布号 |
US4942384(A) |
申请公布日期 |
1990.07.17 |
申请号 |
US19890331367 |
申请日期 |
1989.03.31 |
申请人 |
MATSUSHITA ELECTRIC WORKS, LTD. |
发明人 |
YAMAUCHI, KAZUMASA;KATAYAMA, SUSUMU |
分类号 |
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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