Tower parameter calculation method based on laser point cloud

The invention provides a tower parameter calculation method based on a laser point cloud, and the method comprises the steps: S1, collecting laser point cloud data, and classifying the laser point cloud data according to a tower, an insulator string and a ground wire; s2, extracting point cloud data of each tower, and upwards reading point cloud data C1 = (c11, c12, c13,... c1n) of the towers within the h1 height range layer by layer by taking the bottom of the shortest tower leg of each tower as a starting point and taking delta h1 as a step length, where n = h1/delta h1; s3, traversing the point cloud data C1 of the tower in the height range h1 from low to high: analyzing the point cloud data c1i, obtaining coordinates of four vertexes corresponding to the point cloud data c1i, judging whether the maximum error between the four side lengths of a quadrangle formed by the four vertexes is smaller than e, if yes, executing the step S3, and if not, executing the step S4; and if not, calculating the tower positi