Louver system

The utility model discloses a shutter system. The device comprises an inhaul cable and a take-up device, the inhaul cable is connected with the edges of the shutter blades in series in the vertical downward direction. The take-up device is used for lifting the inhaul cable; the take-up device comprises a take-up shaft and a take-up shaft, the device comprises a motor, a controller, a counter and a magnetic induction sensor, the tail end of the inhaul cable is wound on a rotating shaft of the motor; magnetic powder points are arranged on the inhaul cable; the magnetic powder points are distributed at equal intervals along the inhaul cable; wherein the magnetic induction sensor is connected with the counter, the counter is connected with the controller, the controller is connected with the motor, the magnetic induction sensor is used for inducting magnetic powder points on the inhaul cable, the counter is used for counting the number of the magnetic powder points inducted by the magnetic induction sensor, and t