| 摘要 |
A method and a device for determining if or where a person ( 10 ) is located within an area ( 5 ), wherein a foot transceiver ( 8 ) connected to the person ( 10 ) activates one or several identifiable transponders ( 6 ) placed in the area ( 5 ), after which the activated transponder(s) ( 6 ) emit an identifiable signal, preferably via the foot transceiver ( 8 ), onto a main receiver/transmitter ( 14 ), each of the received signals then being referred to a known position.
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