DEVICE FOR WIRELESS EMERGENCY AND PRODUCTION SIGNALLING AND COMMUNICATION

摘要

The invention relates to the mining industry, in particular to wireless communication systems and can be used for emergency alarming miners in underground workings, calling any subscriber by means of conventional speech phrases, transmitting required technological messages and for searching people in emergency situation. The inventive device comprises transmitting and receiving sets as well as a mining radio beacon, a mobile shaft position finder and a stationary RFID-reader.