| 摘要 |
<p>System for the identification and/or localization of at least one beacon in a space. The system comprises at least one interrogator assembly comprising simultaneous emission means emitting at least two base waves of different frequencies (F1, F2), means for the reception and detection of at least one correlated frequency wave (F3) and a computing and controlling unit for the processing of the signal issued from the reception and detection means. Each beacon is comprised, on the one hand, of distinct conducting loops (20, 21, 22) having dimensions adapted to form resonant circuits tuned on the base (F1, F2) and correlated (F3) frequencies, and on the other hand, of a diode (23) common to said conducting loops, said diode being connected to all conducting loops which close up onto said diode so as to form the mixer of base frequencies (F1, F2) and to deliver said mixture to the loop tuned to the correlated frequency (F3) in order to re-emit the wave of correlated frequency (F3).</p> |
