| 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 ).
|
