Method and device for detecting total length of rolled material

The invention relates to a method and a device for detecting the total length of a rolled material. The method comprises the following steps: acquiring characteristic parameters of the rolled material; and calculating the total length of the roll-shaped material according to the characteristic parameters. According to the technical scheme provided by the invention, the characteristic parameters ofthe rolled material are acquired, and the total length of the rolled material is calculated according to the characteristic parameters, so that automatic detection of the total length of the rolled material is realized, errors caused by manual detection in the prior art are effectively reduced, and the detection accuracy is improved; meanwhile, the whole roll of materials do not need to be unfolded for measurement, so that the operability is high, the detection cost is reduced, the detection efficiency is improved, the labor intensity is reduced, the labor efficiency is improved, the user experience is good, and the