发明名称 WIRELESS REAL TIME LOCATION SYSTEM (RTLS) USING AUDIBLE AND/OR VISIBLE SIGNALS
摘要 A real time location system has a plurality of tag devices. Each tag device has a unique identification code. Each tag device will transmit a location signal when activated. A plurality of location receivers are installed in a fixed location. The location receivers will receive the location signal and calculate a location of the tag device transmitting the location signal. A signal mechanism is coupled to an I/O port of each tag device. The location mechanism provides at least one of an audible signal or visual signal when activated. A location reader is provided. The location reader receives the location data transmitted by the plurality of location receivers to enable a person to locate the tag device transmitting the location signal.
申请公布号 US2008111690(A1) 申请公布日期 2008.05.15
申请号 US20060559446 申请日期 2006.11.14
申请人 DUPLER CRAIG E;VENEMA STEVEN C 发明人 DUPLER CRAIG E.;VENEMA STEVEN C.
分类号 G08B7/00 主分类号 G08B7/00
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