System for detecting transmission displacement length data of workpiece and detection method

The invention relates to the technical field of workpiece detection systems and detection methods, in particular to a system for detecting transmission displacement length data of a workpiece and a detection method. A control system is arranged to be electrically connected with the encoder set and read analog quantity data or switching value data of the encoder set, detection wheels corresponding to the first encoder and the second encoder are arranged, driven wheels are arranged above or below the detection wheels, and advancing gaps of workpieces are formed between the detection wheels and the driven wheels of the first encoder and the second encoder. Compared with the prior art, the device has the advantages that the first encoder and the second encoder are arranged to detect the advancing stroke of the workpiece, then the control system compares data detected by the first encoder and the second encoder, and therefore the accuracy degree of stroke data detection is improved, the advancing stroke of the wor