LOCATING SYSTEM THAT USES PERSONAL RADIOBEACONS

摘要

Locating system that uses personal radiobeacons. The system also comprises at least one controller/receiver device with an antenna and a GPS antenna receiver, associated with a display means. Each personal radiobeacon comprises an antenna and a GPS antenna receiver and upon activation emits an analogue help signal, whose modulating wave consists of sweeps of descending audio frequency separated by intervals of silence, which may be received and demodulated by the controller/receiver device. Respective binary modulating signals from the respective radiobeacons are inserted in the intervals of silence of the analogue help signal, which carry data with additional information obtained by means of the GPS antenna receiver of the radiobeacon, whose instant of transmission for each radiobeacon is governed by the time information of the GPS system, and which can also be received and demodulated by the controller/receiver device.