发明授权
US07907053B2 Combined locating, tracking and communications system 有权
组合定位,跟踪和通信系统

Combined locating, tracking and communications system
摘要:
A combined locating, tracking and communications system (10), including a server (12), a plurality of area transceivers (14) configured to communicate with the server (12) and having an associated reception range (34), a plurality of zone transceivers (16) configured to communicate with the area transceiver (14), a plurality of tags (18) configured to communicate with the area transceiver (14) and the plurality of zone transceivers (16), and a plurality of portable communicators (20) configured to communicate with the area transceiver (14) and the plurality of zone transceivers (16).
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