Comprehensive parameter safety monitoring and control system of mine ventilation shaft base on DSP radio station;

Brief instruction for installing radio station antenna at the support of hydrology cableway;

communications between tow water sources depand on broadband network and the second water source collects siganals in field via radio station,in this way,the system s’ stability and usability could be enhanced.

The design and implementation on the commutator of wireless radio and the satellite channel;