Accurate positioning method for continuous conveying edge position of strip-shaped material

The invention relates to a method for accurately positioning the edge position of a continuously conveyed strip-shaped material. The method comprises the following steps: setting the edge position of the strip-shaped material according to process requirements; the second deviation rectification detection device calculates a second deviation rectification speed, so that the real-time detection value of the edge position of the strip-shaped material is infinitely close to the set target value; a second deviation rectification incoming material detection device calculates a discharged material acceptable range value; a second deviation rectification incoming material detection device calculates a first deviation rectification target value; the first deviation correction detection device calculates the deviation correction target deviation value of the first deviation correction device according to the detected real-time detection value and the deviation correction target value given by the second deviation corre