Improved overhead line system vehicle-mounted limit measuring method based on machine vision

The invention discloses an improved overhead line system vehicle-mounted limit measurement method based on machine vision, which is completed by utilizing mutual cooperation of a parameter measurement module, a comprehensive positioning module and a vehicle-mounted detection host which are mounted on a detection vehicle and a maintenance operation vehicle, and performs continuous measurement on line overhead line system support columns, davits, support column side surface limits and the like in the vehicle driving process. The parameter measurement module comprises a limit measurement module, a geometric parameter module, a compensation module and the like, the parameter measurement module is installed on the outer side of a vehicle body and carries out data acquisition based on a non-contact laser light-sectioning 3D measurement technology of machine vision, and the comprehensive positioning module is connected with the vehicle-mounted detection host and the geometric parameter module. The comprehensive posi