Automatic control device for tower drum platform cover plate of wind turbine generator

Provided is an automatic control device for a wind turbine generator tower barrel platform cover plate. At present, when passing through a platform between every two sections of tower drums, a steel cover plate of a platform opening needs to be opened upwards manually, and in order to prevent articles from falling to a lower tower drum to cause danger after personnel pass through, the personnel can continue to climb the tower after the cover plate is closed manually. The device comprises a fixed support (8) fixed on an upper-layer tower drum platform (11), a winch (7) is fixed on the fixed support, a steel wire rope (3) is wound on a winding roller of the winch, and the end part of the steel wire rope is fixed on a platform hole cover plate (2) of the upper-layer tower drum platform; an upper microwave sensor (4) is fixed on the inner wall of the upper-layer tower drum, and a lower microwave sensor (10) is fixed on the inner wall of the lower-layer tower drum. The automatic control device is used for automati