Automatic Air Volume Control of Mine Local Ventilator Based on Wireless Sensor Network
Aiming at the problem of overshoot and poor control effect in automatic control of ventilation fan air volume,a wireless sensor network-based automatic control scheme for local ventilation fan air volume in mines is proposed.Build wireless sensor networks based on actual situations.Using wireless sensor networks to collect and transmit power data of local ventilation fans.Using the nearest neighbor value filling algorithm to fill in missing data values.Determine the air volume of the local ventilation fan based on the relationship between power,speed,and air volume,and differentiate it from the required air volume to identify the air volume error of the local ventilation fan.Using the fuzzy PID adaptive control algorithm to analyze the air volume error and determine the control quantity.By using a PID controller to regulate the air volume of local ventilation fans,automatic control of air volume for mine local ventilation fans based on wireless sensor networks can be achieved.Experimental results have shown that the overshoot of the design method is below 2％,and it can restore the air volume of the ventilation fan to a stable state within 3 s.
wireless sensor networkfan air volumeautomatic controlfuzzy PID adaptive control algorithm
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