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Abstract The ventilator is an important equipment to ensure the safe mining, which can be monitored on line, and the operating state of the ventilator can be grasped in time to deal with the problems and faults. Based on the characteristics of PLC technology, an on-line monitoring system for coal mine ventilator was constructed to realize the on-line monitoring and remote control of coal mine ventilator, improving the stability and safety of coal mine ventilation system.
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