发明名称 |
VEHICLE PROXIMITY ALARM SYSTEM AND METHOD |
摘要 |
An object of the present invention is to provide a method of proximity detection based on transmitting at random intervals burst of an RF signal an d receiving, while not transmitting, a received RF signal. When detecting said received RF signal emitted by a target in range, an alarm signal is provided to warn of the proximity of the target. Another aspect of the invention is t o deploy the above method among members of a territory and provide a monitorin g patrol to verify if the proximity of those members can be detected from thei r RF signal. Another aspect of the invention is to provide to those members a plurality of statuses among which each member selects one corresponding to i ts current status and transmits that status in the RF signal he transmits, thereby informing other members in range of his current status.
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申请公布号 |
CA2519625(A1) |
申请公布日期 |
2004.10.07 |
申请号 |
CA20042519625 |
申请日期 |
2004.03.26 |
申请人 |
RF ACTION DETECTION INC. |
发明人 |
AUDET, JACQUES;BOUCHARD, MICHEL;BERGERON, ALAIN |
分类号 |
G01S1/68;G01S13/82;G08B13/14;(IPC1-7):G08B21/02;G08G1/16;G08B21/22 |
主分类号 |
G01S1/68 |
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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