发明名称 |
PERSONNEL SECURITY SYSTEM |
摘要 |
<p>A security sensing system for monitoring the passage of persons through a door or like opening including a trigger module having means for transmitting an omnidirectional signal installed on persons to be monitored and a sensing module for installing adjacent to a door opening to be monitored, the sensing module including means for producing a response to operate an alarm but only when the door is opened by a person equipped with a trigger module on his person.</p> |
申请公布号 |
CA1258693(A) |
申请公布日期 |
1989.08.22 |
申请号 |
CA19860520934 |
申请日期 |
1986.10.21 |
申请人 |
CENTRAL SECURITY MFG. CORP. |
发明人 |
SHIRLEY, JOHN R. |
分类号 |
G07C9/00;(IPC1-7):G08B13/08;G08B13/18 |
主分类号 |
G07C9/00 |
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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