Transformer substation three-dimensional modeling method and system based on multi-source data fusion, and medium
A three-dimensional modeling and multi-source data technology, applied in the field of three-dimensional reconstruction, can solve the problems of low efficiency and low precision of three-dimensional modeling, and achieve the effect of reducing hardware requirements, improving accuracy, and improving efficiency
Pending Publication Date: 2021-08-24
JIANGSU POWER TRANSMISSION & DISTRIBUTION CO LTD +1
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art, and provide a three-dimensional modeling method, storage medium and system for substations based on multi-source data fusion, which can solve the problems caused by a single laser scanning technology or a single oblique photography technology. Low efficiency and low precision of 3D modeling
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[0058] The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0059] Such as figure 1 As shown, a 3D modeling method of substation based on multi-source data fusion includes the following steps:
[0060] Set the flight height and flight trajectory of the UAV according to the area of the substation. The UAV tilt camera device adjusts the flight height on the premise of covering the entire area of the substation, so that the images taken by the four tilt lenses of the UAV The coincidence with the images taken by the vertical lens is kept at 60% to 80%. Since the equipment in the main transformer substation of the substation is seriously shielded from each other, the oblique photography device of the drone is used to take two full-area coverage shots of the entire area. The flight trajectory It is set between the rows and columns formed by the substatio...
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The invention discloses a transformer substation three-dimensional modeling method and system based on multi-source data fusion. The method comprises the following steps: 1) scanning a transformer substation in multiple modes; 2) conducting data preprocessing; 3) obtaining dense point cloud based on an oblique photography image, and then performing point cloud thinning to obtain sparse point cloud; 4) unifying a space coordinate system between laser point cloud and the sparse point cloud; 5) completing coarse registration of the laser point cloud and the sparse point cloud by using a local linear embedding model oriented to non-aligned multi-view data fusion; 6) realizing accurate registration of the laser point cloud and the sparse point cloud through the iterative closest point, and realizing fusion of data of the laser point cloud and the sparse point cloud; 7) generating a transformer substation real-scene three-dimensional model on the basis of the point cloud data after fusion. According to the invention, the precision of three-dimensional modeling of single-source data can be improved, and meanwhile the efficiency of three-dimensional modeling is improved.
Description
technical field [0001] The invention relates to a substation three-dimensional modeling method medium and system based on multi-source data fusion, and belongs to the technical field of three-dimensional reconstruction. Background technique [0002] The terrestrial 3D laser scanner adopts the method of laser ranging, which can efficiently obtain the 3D data of the target area and obtain a high-precision 3D model, but the efficiency of this method is relatively low and the texture information of the object surface cannot be obtained; oblique photogrammetry technology The 3D modeling of the target area using aerial images can intuitively and truly reflect the characteristics of ground objects, and has the characteristics of high efficiency, low cost, flexibility and convenience, but the accuracy of this method is relatively low. Therefore, how to combine the high-precision characteristics of laser scanning with the high-efficiency, flexible and convenient characteristics of ob...
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Login to View More IPC IPC(8): G06T17/20G06T15/04G06T5/00G06T7/33
CPCG06T17/20G06T15/04G06T7/33G06T2207/10028G06T5/70
Inventor 吴勇申凌峰韩鸣刘东华李刚丁俊峰倪峰巫吉祥陈功勋金振强
Owner JIANGSU POWER TRANSMISSION & DISTRIBUTION CO LTD