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Road three-dimensional sight distance checking calculation method

A technology of driving simulator and driving simulation, which is applied in the field of three-dimensional line-of-sight checking and calculation of roads based on BIM and driving simulators, can solve problems such as low efficiency and high testing costs, and achieve the goal of ensuring authenticity, intuitive testing, and improving testing accuracy Effect

Active Publication Date: 2020-04-14
SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In practical applications, the above-mentioned 3D line-of-sight detection technologies or methods meet the practicability of safety evaluation in the road design stage, or the efficiency is low, resulting in high detection costs

Method used

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  • Road three-dimensional sight distance checking calculation method
  • Road three-dimensional sight distance checking calculation method
  • Road three-dimensional sight distance checking calculation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A road three-dimensional line-of-sight checking method based on BIM and driving simulator; the steps are as follows:

[0046] Step 1: Establish road BIM based on road horizontal, vertical and horizontal design data and terrain and object information, forming a static scene for driving simulation;

[0047] Step 2: Based on the horizontal and vertical design data of the road, use SCANeR TM The Studio driving simulation software establishes the driving logic layer, laying the foundation for the dynamic scene construction of the driving simulator;

[0048] Step 3: Add the driving vehicle and the vehicle in front in the simulation scene, and calculate the parking sight distance S in real time based on the running speed V of the driving vehicle T , and in the driving simulator according to the parking sight distance S T updating the position of the vehicle in front in real time to form a dynamic scene for driving simulation;

[0049] Step 4: Execute SCANeRTM The Simulati...

Embodiment 2

[0067] Sight distance inspection of North Cross Passage (East Section) in Shanghai. The project is the first east-west ultra-long underground expressway in Shanghai. It runs from 200m east of Tibet North Road to Haining Road and Zhoujiazui Road, and ends 100m west of Shuangyang Road. The total length is 6.9km. Set up 3 pairs of underground ramps to serve key areas along the line, 3 wind towers, and 1 management center.

[0068] Such as figure 1 As shown, step 1, establish road BIM based on road level, vertical and horizontal design data and terrain and surface object information, and provide static scenes for driving simulation;

[0069] Step 2. Based on the horizontal and vertical design data of the road, the driving simulation software is used to establish the driving logic layer, laying the foundation for the dynamic scene construction of the driving simulator;

[0070] Such as figure 2 and image 3 As shown, in step 3, add the driving vehicle and the vehicle in front ...

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Abstract

The invention discloses a road three-dimensional sight distance checking calculation method based on a BIM and a driving simulator. The method comprises the following steps: firstly, forming a staticscene for driving simulation, and establishing a driving logic layer by adopting driving simulation software; secondly, adding a driving vehicle and a preceding vehicle in the simulation scene, calculating the parking sight distance in real time based on the running speed of the driving vehicle, and updating the position of the preceding vehicle in real time in the driving simulator according to the parking sight distance; thirdly, executing a driving analog simulation module, recording a driving record video of a visual angle of a driver in the driving vehicle and vehicle driving data of a rear vehicle, and detecting whether the driving record video contains a front vehicle or not through a target detection algorithm based on color characteristics; and finally, finding the coordinate of the driving vehicle according to the bad moment through a bad sight distance video timestamp and the corresponding bad moment in a data table output by the driving simulation software. According to theinvention, an inspection result has a higher application value; the authenticity of a road static scene is ensured to the greatest extent.

Description

technical field [0001] The invention relates to the technical field of road three-dimensional line-of-sight detection, in particular to a road three-dimensional line-of-sight checking method based on BIM and a driving simulator. Background technique [0002] Sight distance is an important design index to ensure vehicle driving safety. Each lane along the road should have enough sight distance, so that the driver can detect obstacles on the road ahead or oncoming vehicles in time when driving under speed limit conditions, and take timely collision avoidance measures. The distance becomes the driving sight distance. Whether the driving sight distance is sufficient or not is directly related to the safety and efficiency of driving, and is one of the important indicators of the quality of road use. According to the driver's discovery of obstacles or different measures taken against oncoming vehicles, the driving sight distance is divided into four types: parking sight distance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B9/05
CPCG09B9/05
Inventor 杨旻皓张兰芳徐一峰王明炯杨光
Owner SHANGHAI URBAN CONSTR DESIGN RES INST GRP CO LTD
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