Belt conveyor control method

The invention discloses a belt conveyor control method, and belongs to the technical field of multi-motor driven belt conveyor control. According to the control method of the belt conveyor, the number of the driving motors is correspondingly adjusted by detecting the load state of the conveying belt, so that the running efficiency of the conveying belt is improved; the relation between the tension increment of the conveying belt and the drooping length of the conveying belt is established, the drooping length of the conveying belt is obtained by calculating the tension increment of the conveying belt, and the current state of the conveying belt is judged by comparing the drooping length of the conveying belt with a set drooping length threshold value. If the drooping length exceeds the set drooping length threshold value, the length of the current conveying belt is redundant, the conveying belt at other positions is lengthened, and the risk of tearing the conveying belt exists, so that the drooping length of