An intelligent auxiliary route selection method for long cargo railway transportation based on sdf

Abstract

The invention discloses an SDF-based intelligent auxiliary line selection method for railway transportation of long-sized goods. Firstly, the real environment point cloud of the section along the railway is obtained; Carry out voxelization processing, and calculate the directed distance field value from each voxel vertex to the truck envelope model; finally, place the real environment point cloud and the AABB bounding box in the same coordinate system, and judge each environment point relative to the AABB bounding box If the position of the box is inside the AABB bounding box, calculate the directed distance field value of the environment point based on the directed distance field value of each vertex of the voxel where it is located; judge each The boundary relationship between the environment point and the envelope model of the freight car, so as to judge that the freight car loaded with long cargo can pass through the section along the railway. The invention greatly reduces the cost of line selection for railway transportation of long and large goods, and improves the detection accuracy.

Description

technical field [0001] The invention relates to the field of railway transportation, in particular to an SDF-based intelligent auxiliary line selection method for railway transportation of large and large goods. Background technique [0002] With the continuous rapid growth of my country's national economy, the reform of the railway freight system has been deepened and improved, and a large number of national construction materials and people's daily necessities have poured into the railway transportation line. In particular, the volume of out-of-gauge cargo has soared in recent years. The transportation of overweight and overweight cargo (large cargo) in railway transportation is a special mode of transportation, and the more special one is the special train transportation of overweight cargo, which is defined as: in order to realize the Specially added railway wagons for the safe transportation of goods (special vehicles). In order to judge whether a railway freight car ...

AI Technical Summary

Problems solved by technology

The construction cost of this method is high, and the test cycle is long

[0006] The existing detection method consumes high manpower and material costs, and the data sampling period is long when the new route is selected or the old route permits the operating data to change. The current data does not include the dynamic envelope profile of the large cargo truck and the relevant interference data of the environmental data. The transportation route needs to make and install inspection frames and continue to carry out real vehicle experiments to find a route that can safely transport large goods

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