发明名称 |
Entry or exit control method for protected area e.g. hospital nursery, has interference caused by simultaneous detection of codes from 2 different sources identified as permitted entry or exit of 2 persons or objects |
摘要 |
The entry or exit control method has a code transmitter attached to each person or movable object, with specified codes (A1-A6) detected for providing a warning signal indicating an unauthorised entry or exit to or from the protected area (S). An interference caused by simultaneous reception of 2 different codes from respective signal sources can be identified as an authorised entry or exit of 2 persons or objects. An Independent claim for an entry or exit control device is also included.
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申请公布号 |
DE19925523(A1) |
申请公布日期 |
2000.12.07 |
申请号 |
DE19991025523 |
申请日期 |
1999.06.04 |
申请人 |
SCHMELTER, PHILIPP |
发明人 |
SCHMELTER, PHILIPP;HILLER, JOACHIM |
分类号 |
G07C9/00;G07C11/00;G08B21/00;G08B21/22;(IPC1-7):G08B21/00 |
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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