| 摘要 |
Equipment for detecting endangered persons, particularly in below-ground mining, essentially consisting of an interrogating, alarm and signalling unit, and the response transmitters allocated to persons to be monitored, the response transmitter in turn exhibiting a receiving antenna, evaluating electronics and a transmitting antenna. To provide for functional and captive allocation of the response transmitter, the invention provides for the receiving antenna (6), the transmitting antenna (19) and the evaluating electronics (18) to be integrated in the belt (1), particularly the trousers belt of the person to be monitored. <IMAGE>
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