Vehicle digital simulation test model building system and method, computer program

Abstract

The invention belongs to the technical field of computer software, and discloses a vehicle digital simulation test model building system and method, a computer program, and a data input module for inputting road line data and road line data detection; and a space curve generation module for use in According to the input road alignment data, generate a space curve describing the road geometry, and save the parameters of the space curve; the sampling point acquisition module, according to the preset rules, takes points at intervals on the generated space curve; the model generation module is used for According to the pre-selected road section model and obtained road data, three types of models with the same coordinate system are stretched and formed; the calculation module calculates the mapping relationship between texture data and LRG Model, the proportional relationship of placing the basic model instance, and the three-dimensional space Coordinates and direction vectors; a model generation module for generating models.

Description

technical field [0001] The invention belongs to the technical field of computer software, and in particular relates to a vehicle digital simulation test model building system and method, and a computer program. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: Extract road data from road design data or field survey data, and use 3D modeling software as a basis to establish a 3D scene model required for visual simulation operation. The extracted road data is also used for vehicle dynamics simulation calculations after format conversion. For the scene model required for vehicle sensing layer simulation, the 3D scene model used in visual simulation is usually directly adopted due to the lack of targeted modeling methods. [0003] In summary, the problems in the prior art are: [0004] 1. Due to the limitations of modeling methods and modeling tools, road models in 3D scene models are usually generated manually...

AI Technical Summary

Problems solved by technology

[0004] 1. Due to the limitations of modeling methods and modeling tools, road models in 3D scene models are usually generated manually or semi-automatically, and road models and road data used in dynamic simulation calculations require manual registration

The production is difficult, the production efficiency is low, time-consuming and labor-intensive, and the accuracy of the model is greatly affected by the level of the modeler

[0005] 2. Due to the lack of a scene model dedicated to the simulation of the vehicle sensor layer, the direct use of the 3D scene model for visual simulation has problems such as low model accuracy, large information redundancy, and lack of optimization in the organizational structure of the scene model, which directly affects the effectiveness of the simulation. and simulation run efficiency

Images