Multi-terminal in-loop virtual-real combined traffic comprehensive scene simulation test system and method

A virtual-real combination and scene simulation technology, which is applied in the field of multi-terminal in-loop and virtual-real combined traffic comprehensive scene simulation test system, can solve the difficulty of interpenetration of experimental data and conclusions, desalination of the adsorption of the real test environment, and the lack of correlation of non-loop units sexual issues

Pending Publication Date: 2020-10-30
CHANGAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] 2. The non-in-the-loop unit in the test environment lacks the correlation with the real environment, which leads to an independent test form that is essentially divorced from the real e...

Method used

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  • Multi-terminal in-loop virtual-real combined traffic comprehensive scene simulation test system and method
  • Multi-terminal in-loop virtual-real combined traffic comprehensive scene simulation test system and method
  • Multi-terminal in-loop virtual-real combined traffic comprehensive scene simulation test system and method

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Experimental program
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Embodiment 1

[0052] Such as figure 1 with figure 2 As shown, this embodiment provides a multi-terminal in-the-loop combined virtual and real traffic comprehensive scene simulation test system, including: a virtual unit, a real unit and a network environment; the virtual unit and the real unit are jointly connected to the network environment to realize data interaction between modules and response and real-time feedback of results;

[0053] Virtual units include:

[0054] The simulation scene building module is used to establish a virtual three-dimensional scene and realize the reconstruction of the traffic scene;

[0055] The logical road network environment establishment module is used to establish a descriptive and identifiable road with standard specifications and its geometric parameters (slope, height, road width), road surface, etc. Attributes (road conditions, materials), intersections, lanes (number of lanes, lane markings), signal lights, sign boards, traffic flow, roadside ob...

Embodiment 2

[0074] This embodiment provides a multi-device-in-the-loop simulation test method for combined virtual and real traffic scenarios, including the following steps:

[0075] Step 1: Start the simulation platform, load the virtual 3D scene, and import the prefabricated configuration;

[0076] Step 2: Select the real unit and virtual unit objects that need to participate in the simulation test, and select one of them as the main object;

[0077] Step 3: The real unit obtains the vehicle heading angle, speed, and position data from the simulated driving, which is used to drive the corresponding simulated driving vehicle in the scene, and at the same time transmits it to the network environment, and performs state synchronization corresponding to the simulated driving vehicle;

[0078] Step 4: The real unit obtains the vehicle attitude and speed data from the unmanned vehicle on the bench, which is used to drive the corresponding unmanned vehicle in the scene, and at the same time tr...

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Abstract

The invention discloses a multi-terminal in-loop virtual-real combined traffic comprehensive scene simulation test system and method. A virtual three-dimensional scene is constructed and comprises a vehicle, a road, a building, a tree, a lateral clearance, a wading road section and a portal frame, and people, animals, a weather environment, an illumination condition, signal lamps and traffic flowdata generated by microscopic traffic simulation software in the scene are used as virtual objects; driving data transmitted by a manually-controlled simulation driving vehicle, a vehicle-mounted unitof an intelligent network connection vehicle in a real environment, a road side unit and an unmanned vehicle rack are used as real objects; the three parts jointly form a traffic simulation test system with a closed-loop form, and the functions of the test system mainly comprise performance evaluation of a main body object, driving behavior analysis and the like.

Description

technical field [0001] The invention belongs to the application field of simulation test of intelligent traffic, and relates to a traffic comprehensive scene simulation test system and method of multi-terminal in-loop and combination of virtual and real. Background technique [0002] With the continuous development of intelligent networked vehicles and autonomous driving technologies, the country has included the Internet of Vehicles technology in the new innovation strategy. application. In the future development process, vehicle-road coordination, big data, and information fusion will be the main technical means for product development and technical testing of the Internet of Vehicles. Whether it is product development or functional and safety testing, it needs to rely on a large amount of actual test data, and sometimes tests under extreme conditions are often required. This not only increases the R&D cycle and financial and human costs, but also takes into account the ...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06T17/05
CPCG06F30/20G06T17/05Y02A90/10
Inventor 柳有权高彦东赵祥模徐志刚
Owner CHANGAN UNIV
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