Underground cable three-dimensional digital visualized positioning method based on AR and BIM

Abstract

The invention relates to an underground cable three-dimensional digital visualized positioning method based on AR and a BIM. Through a GIS geographic information system and the underground cable three-dimensional digitized BIM, AR intelligent hardware positions an underground cable through RIFD electronic tags fixed to the lower portion of a cable trench cover plate and included information, and underground cable three-dimensional digitized real-time dynamic AR display is further achieved through information such as positioning information and azimuth information of the AR intelligent hardware. The whole life cycle process of the transmission and transformation project can be applied simultaneously, and the underground cable three-dimensional digital visualized positioning method has the huge economic benefits and development potential; and meanwhile, the using number of the RIFD electronic tags is decreased greatly, the cost is saved greatly, and the problems of indoor positioning, satellite positioning and RTK modes of the transmission and transformation project are solved effectively.

Description

technical field [0001] The invention belongs to the field of power grid power transmission and transformation engineering, and relates to a three-dimensional digital visualization positioning method for underground cables based on AR and BIM. Background technique [0002] With the continuous improvement of the level of urbanization, the construction of green cities and smart cities has become the top priority of the current urbanization construction, and the construction of urban underground comprehensive pipe corridors is an important measure for innovative urban infrastructure construction. For power grid enterprises, the demand for cable penetration and underground cable construction is increasingly urgent. At the same time, with the increasing intelligence level of power transmission and transformation projects, the number of control cables in power transmission and transformation projects is also increasing day by day, and the complexity is increasing day by day. New c...

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Problems solved by technology

[0006] 2. Relying on measurement or relative position positioning methods of reference objects is unreliable, and the difference is large due to the influence of environmental restrictions, which is not generalizable;

[0007] 3. There are some functional buildings in the power transmission and transformation project. For the cable management and positioning in the indoor cable trench of the power transmission and transformation project, if the satellite positioning or RTK method is used to obtain the positioning results, the error is relatively large, and the indoors cannot receive satellite signals. , may lead to failure of this positioning method;

[0008] 4. The cost of using a point-to-point positioning marker is relatively high, and the number of cables is large, which further increases its investment and construction costs and limits the promotion and application of this method

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