Roller shutter device for solar greenhouse and roller shutter control method

The invention provides a roller shutter device for a sunlight greenhouse and a roller shutter control method, and relates to the technical field of agricultural greenhouses, the device comprises a fixing mechanism, a roller shutter mechanism and a control mechanism; the bottom end of a first supporting arm of the fixing mechanism is movably connected to the base, the upper end of the first supporting arm is hinged to one end of a second supporting arm, the other end of the second supporting arm is fixedly connected with the roller shutter mechanism, one end of a connecting rod is rotationally connected to the second supporting arm, and the other end of the connecting rod is slidably connected to the first supporting arm. A limiting part is arranged on the first supporting arm and is used for stopping the curtain rolling or releasing operation when the end point of the connecting rod slides to the moment; an angle sensor is arranged on the second supporting arm and used for monitoring and uploading an angle fo