Cable strand saddle entering quality digital detection method based on linear scanning laser

The invention discloses a cable strand saddle entering quality digital detection method based on linear scanning laser, which comprises the following steps of: step 1, using a laser sensor which is vertical to the surface of a cable strand to be detected to emit laser to the cable strand to be detected, and acquiring current section data of the cable strand; 2, determining the number of wave crest points, X coordinates, Z coordinates and delta X between adjacent wave crest points; 3, performing linear fitting on the discrete wave crest points by adopting a least square method to obtain a fitting straight line L, calculating a deviation value delta Z corresponding to each wave crest point, and determining a maximum absolute value delta Zmax; and 4, if the maximum deviation Zmax exceeds a set value, the maximum distance Xmax exceeds a set value or the foreign matter SN exceeds a set value, judging that the surface of the cable strand has quality defects. According to the cable strand saddle entering quality dig