Automatic identification method for sludge sedimentation

The invention provides an automatic identification method for sludge sedimentation. The method comprises the following steps: constructing and calibrating a measuring cylinder template drawing; performing feature matching on the to-be-measured tube drawing and the calibrated measuring cylinder template drawing so as to extract and calibrate a measuring cylinder area of the to-be-measured tube drawing; preprocessing the extracted measuring cylinder area map to eliminate illumination interference; and acquiring a muddy water segmentation line of the measuring cylinder area by adopting a method based on statistical search jump, and calculating the settlement ratio according to the position relationship between the water surface and the muddy water segmentation line. According to the invention, manpower consumption is saved, the whole process of sludge sedimentation is automatically monitored, and the concentration and sludge condition of activated sludge in the aeration tank are timely and accurately known, so t