发明名称 SYSTEM AND METHOD FOR DETERMINING THE ENTRY OR EXIT LANE OF VEHICLES PASSING INTO OR FROM A VEHICLE LOT USING TAG INTERROGATOR AND RSSI
摘要 A system determines the entry or exit lane of vehicles passing through a vehicle gate that has a plurality of vehicle lanes through which vehicles enter or exit. A tag interrogator is positioned at a predetermined location of the vehicle gate and emits a signal containing a tag interrogator ID. A plurality of the vehicles lanes are within range to receive that signal. A tag transmitter is mounted on a vehicle that enters or exits the gate and receives the signal emitted from the tag interrogator, which determines the Received Signal Strength Indication (RSSI) and in response, transmits an RF signal containing the tag interrogator ID and the RSSI for determining which vehicle lane the vehicle is located based on the tag interrogator ID and RSSI.
申请公布号 WO2008069939(A3) 申请公布日期 2008.08.21
申请号 WO2007US24490 申请日期 2007.11.28
申请人 WHERENET CORP 发明人 JOHNSON, WALTER S.;HUONG, HAN M.
分类号 G07B15/02;G07C9/00 主分类号 G07B15/02
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