Liu Yi

Coal mine driving face rock burst alarming method based on images

Underground methane monitoring and positioning system

Underground positioning and monitoring communication system

Underground flood alarm system based on image and water quality monitoring equipment

Coal face coal and gas outburst alarm method based on images

Belt detection alarming system based on laser ranging

Location, search and rescue system for mining personnel

Belt material measurement system based on laser ranging

Downhole multifunctional personnel location distress system

Floods alarm system in pit based on image with gush water yield monitoring facilities