Design of coal mine blasting monitoring system based on accurate personnel positioning

In view of problem that existing coal mine blasting monitoring system could not accurately monitor position of personnel in blasting area, and it was easy to cause false detection and missed detection of personnel in blasting area, a coal mine blasting monitoring system based on accurate personnel positioning was designed. The system monitors position distribution and identity information of personnel in blasting area by use of dynamic target recognizer with accurate personnel positioning function. Combining with gas concentration in blasting area, it judges whether the blasting area meets safe blasting conditions such as group leader, blasting member and gas inspector are all near blasting warning point, no personnel in the blasting area and gas concentration do not exceed limit. When the safe blasting conditions are met, wireless exploder is unlocked for blasting operation, otherwise it is set in locked state. The field application results verify effectiveness of the system.