Multichannel wireless sound emission monitoring and pre-warning system for stability of surface mine gob

The utility model discloses a multichannel wireless sound emission monitoring and pre-warning system for stability of a surface mine gob. The system is characterized by comprising a sensing device, a signal transmitting unit (5), a signal receiving unit (6) and a data processing device, the data processing device comprises a data acquisition instrument (4), a signal converter (7) and a computer (8), and a sensing probe (2) of the sensing device is sealed in a probe hole of a hazardous location of the gob (1). The sensing probe transmits collected rock breaking sound waves within the range of the radius of 30-50 meters around the sensing probe to the earth surface data acquisition instrument in the form of electric signals through a cable of the sensing device, the signal transmitting unit transmits the signals of the data acquisition instrument to the signal receiving unit of a monitoring room in a radio mode, the signal converter processes the signals into digital signals and inputs the digital signals to th