TRACKING SYSTEM USING AN EXISTING WIRELESS NETWORK

摘要

A system for tracking an object being provided with a tracking wireless transceiver and a positioning system in communication with the tracking wireless transceiver is disclosed. The system includes a receiver for receiving an indication that the object needs to be tracked; a pager for paging the tracking wireless transceiver; and a trigger for activating the positioning system, so that the positioning system obtains preliminary positioning information from the positioning system and relays the preliminary positioning information to the tracking wireless transceiver. the tracking wireless transceiver sends the preliminary positioning information to a central location. The system also includes a beacon for emitting a signal, which is activated when the tracking wireless transceiver has been paged. The system further includes a radio location finder for tracking the object based on the preliminary positioning information and a direction of travel of signals emitted by the beacon and received at a search vehicle.