FIELD: mining.
SUBSTANCE: invention relates to means for ensuring the safety of work in mines. The air and gas control system in the working face area contains measuring devices installed on a mining machine and active repeaters located in the mine, and a data collection unit configured to communicate with the control panel of the mine safety system located on the surface. Active repeaters are used to transmit data between measuring devices and a data acquisition unit in both directions, with data transmitted at a frequency of 800 to 1000 MHz. The data collection unit is equipped with a set of standard analogue and digital interfaces, through which it is connected to the gateway of the wired line of the mine safety system.
EFFECT: increasing the transmission range of a reliable and interference-resistant radio signal in a mine face.
6 cl, 4 dwg
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