In order to further play role of coal mine safety monitoring system in gas control, AQ 1029-2007 Use Management Specification of Coal Mine Safety Monitoring System and Testing Instrument should be amended. The main contents of proposed amendments include: adding wind direction sensor and dust sensor; mine directors in underground should carry wireless portable methane alarm detector or wireless digital methane detect and alarm head lamp with wireless transmission function; protection grade of sensor should be not less than IP65; coal and gas outburst mines should use full range or high and low concentration methane sensor; coal mine safety monitoring system should be networked, and upload real-time monitoring data to superior; the system can transmit information by cable or optical cable; backbone cable should be divided from different shaft or from different positions with some distance in a shaft into underground; safety monitoring system cannot share the same optical fiber with image monitoring system; safety monitoring equipment should be regularly adjusted and tested 1 time per month at least; adjustment period of carrier catalytic methane sensor, wireless portable methane alarm detector and wireless methane detect and alarm head lamp should be increased from 10 days to 15 days, and the sensor should be adjusted in setting location; methane electric blocking and wind power blocking function should be tested at least 1 time per 15 days, and equipment that may cause local ventilator power outage should be tested 1 time per 6 months; dual host computer hot-backup is needed, and switch time from the host to the backup host should be not more than 40 s; scheduling staff on duty should power off and order related personnel to evacuate after receiving alarm, power outage and abnormal feed information.
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