The intelligent local fan ventilation system is a mine ventilation monitoring system. It can realize the remote control of the fan, monitor various parameters of the online, and alarm in case of exceeding the limit. Through the underground sensors and underground parameters, it determines the amount of air supply, solves the problem of on-demand air supply local ventilation machines in mines, and achieves safe, efficient, automatic, and rapid gas emission, energy saving and electricity saving. When the main air supply circuit fails, it automatically puts standby circuit fan into operation, keeping the working face continuously ventilated. The FBD series forced-entry counter-rotating local ventilator, which is used conjunction, is one of the main products of our company. This series of fans has four major features: 1.High efficiency: The blades adopt the three-dimensional flow design the wing twist, and the efficient area range is wide. 2.Low noise: The shell adopts the wrapped sound insulation device, and the specially designed air inlet side air inlet insulation device is added, and the noise can be reduced by more than 10%. 3.Stable performance: The wind pressure is relatively stable, the surge phenomenon small, and it runs smoothly in the high wind pressure and low flow area. 4.The air supply distance is far, and the adaptability to complex roadways is strong