发明名称 |
Time multiplexed, false alarm resistant magnetically actuated security system |
摘要 |
A magnetically actuated switch system (10) has reduced sensitivity to false alarms and reduced power consumption and resistance to physical and magnetic tampering. The system includes a signal processing circuit controlled by a microprocessor (16) that selectively enables magnetic sensors (12, 38), and compares the corresponding sensor outputs (76) to automatically calibrated level and predetermined timing characteristics.
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申请公布号 |
US5534849(A) |
申请公布日期 |
1996.07.09 |
申请号 |
US19940351566 |
申请日期 |
1994.12.06 |
申请人 |
SENTROL, INC. |
发明人 |
MCDONALD, KEVIN B.;PIERCE, STEPHEN W.;BENOWITZ, MICHAEL;TERRETT, DAVID S. |
分类号 |
G08B13/08;H03K17/00;H03K17/95;H03K17/97;(IPC1-7):G08B13/08 |
主分类号 |
G08B13/08 |
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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