The invention discloses a building method of a
transformer substation three-dimensional model by using a
laser three-dimensional scanning technique, comprising the following steps: 1) building a
transformer substation three-dimensional measuring and controlling network; 2) collecting the
point cloud data of a
laser three-dimensional
scanner; 3) carrying out indoor-
processing on the
point cloud data; 4) generating partition
computer aided design (CAD) three-dimensional models; and 5) merging the partition models. The method of the invention can effectively realize the
quality control of the
laser three-dimensional scanning
point cloud data, and enhancing the splicing efficiency of the point
cloud data. The method of partitioning and modeling at first proposed in the invention greatly enhances the modeling efficiency of the
transformer substation three-dimensional model, and the working process proposed in the invention ensures high accuracy and high efficiency aiming at the transformer substation. The building of the transformer substation three-dimensional model can be used in the
scientific management and analysis of the transformer substation, as well as in the solving and decision-making of training, showing, operating, rebuilding, expanding and general
engineering problems. The method meets the developing demands of
standardization, intensification and high technicalization of the transformer substation, and has significant potential economic benefit.