Research on automatic fitting and refined reconstruction method of three-span section split conductor

Automatic fitting of power lines is an important technical means for three-span section measurement and safety monitoring. In order to solve the problems of poor anti-noise performance and over-fitting of the existing automatic fitting methods of bundle conductors, this paper proposes an automatic extraction method of bundle conductors based on dichotomy, and on this basis, a fine reconstruction model of bundle conductors based on catenary is designed. The noise is filtered out by feature analysis, the bundle conductors are identified and extracted by the least square method point cloud, and the bundle conductors are finely reconstructed by catenary configuration. The characteristics of strong anti-noise performance and high precision of fitting and reconstruction are realized, which can well meet the needs of three-span section measurement and safety monitoring.