Tension roller slip online evaluation method based on strip steel cold rolling

The invention provides a tension roller slip online evaluation method based on strip steel cold rolling, and belongs to the technical field of cold steel rolling. The method comprises the steps of collecting relevant data of a tension roller motor in real time, automatically finding the effective trend interval of the data, intercepting the time period when the trend changes, capturing the parameter abnormal adjustment area of a tension roller, then establishing a tension roller slip automatic evaluation model, and finally displaying the operation state of the tension roller motor and the evaluation result of the tension roller slip model in an online manner. According to the method, the state of the tension roller and change of relevant parameters are monitored in real time, the abnormal parameter adjustment area is captured, the tension roller slip evaluation model is established, qualitative and quantitative judgment is carried out, evaluation of the tension roller slip phenomenon in each tension section d