发明名称 TAGGING SYSTEM USING MOTION DETECTOR
摘要 The present invention relates generally to a tag monitoring system network (16) used for tracking object movement. The tags (10) utilized in the system incorporate a motion sensor (18) which detects object movement and includes a signal generation circuit adapted to generate a signal when motion is detected. A microcontroller (20) is provided which is in electrical communication with the motion sensor (18) and includes a transmitter activation circuit wherein said microcontroller (20) includes a preprogrammed transmitter sequence which is activated by receipt of a signal from the motion sensor (18). A radio transmitter (12) is also provided on the tag (10) which is in electrical communication with the microcontroller (20), and generates radio signals at the direction of the microcontroller (20).
申请公布号 WO9853343(A9) 申请公布日期 1999.04.01
申请号 WO1998US10290 申请日期 1998.05.19
申请人 NORTHROP GRUMMAN CORPORATION 发明人 GUTHRIE, WARREN, E.;PAPPADIA, JOSEPH, F., JR.
分类号 G01V3/00;G01V15/00;G06K17/00;G06K19/07;G08B13/14;G08B13/24;H04B1/59;H04B5/02;(IPC1-7):G08B13/14;G08B1/08 主分类号 G01V3/00
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