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公开(公告)号:US06606556B2
公开(公告)日:2003-08-12
申请号:US10284502
申请日:2002-10-31
IPC分类号: G01C2100
CPC分类号: G08B25/016 , G01S5/0036 , G08B21/0211 , G08B21/0213 , G08B21/0227 , G08B21/023 , G08B21/028 , G08B21/0283
摘要: A security and tracking apparatus is provided, comprising at least two signaling units in communicating proximity, and means for identifying the location of the signaling units. In one embodiment, a security and tracking apparatus is provided, comprising at least two signaling units in communicating proximity, and means for identifying and automatically transmitting the location of the signaling units when the signaling units are separated by more than a preselected distance. In a preferred embodiment, a method is provided to locate a person, an animal, or a material asset, comprising providing in contact with the person, animal, or material asset, at least two signaling units in communicating proximity, wherein at least one signaling unit is small and hidden and securely attached to the person, animal, or material asset, and the signaling units having means for identifying the location of the signaling units to a monitoring station; activating means for identifying the location of the signaling units by referencing the global positioning satellite (GPS) system; and notifying the monitoring station of said geographic location.