Real driving scene simulation method and system, electronic equipment and storage medium

A driving scene and simulation method technology, applied in the fields of electronic equipment, storage media, systems, and simulation methods, can solve problems such as not supporting user-defined modification, weak scalability, fixed applicability, etc., to ensure test coverage and authenticity Accuracy, data sources and channels are diverse, and the effect of ensuring accuracy

Inactive Publication Date: 2022-02-18
深圳慧拓无限科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of autopilot technology, the corresponding autopilot function testing requirements have also greatly increased. Conventional software testing methods and real vehicle testing are far from meeting the rapidly growing testing requirements. Therefore, simulation autopilot testing is gradually Become a mainstream testing method
The usual simulated autonomous driving test method needs to manually construct the test environment and design various driving behaviors in advance. The test is inefficient and not realistic enough to fully test the autonomous driving function.
Although the tool chain based on commercialized simulation scene construction can quickly build a test simulation environment as realistic as possible, due to the characteristics of charging and authorization, it leads to high cost of use and is difficult to promote and apply on a large scale. Moreover, the applicability is relatively fixed and does not support users. Custom modification, it is difficult to adapt to the rapid development of autonomous driving test requirements
[0003] Currently existing similar technical solutions are implemented based on commercial simulation scene construction software tools such as VTD or SCANeR. The data processing process is similar, and they all first perform three major processes: separation of dynamic and static traffic elements, simulation 3D scene construction, and dynamic traffic flow generation. The main disadvantage of the existing technology is: the simulation scene creation tool used is paid, and the scalability is weak, and it does not support users to customize functions according to actual needs

Method used

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  • Real driving scene simulation method and system, electronic equipment and storage medium
  • Real driving scene simulation method and system, electronic equipment and storage medium
  • Real driving scene simulation method and system, electronic equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Based on the multi-sensor data acquisition platform, the internal and external parameters between multiple sensors are calibrated and time-synchronized;

[0041] Build a 3D spatial map of the real scene and extract the road network data of the road in the scene;

[0042] Based on multi-sensor fusion data and 3D scene map data, the dynamic and static traffic elements in the real driving scene are marked and separated, and the local spatial position and type of the dynamic and static traffic elements in the real scene are output;

[0043] Generate the simulation scene file, reproduce the real driving scene and save it as a simulation scene library file that can be imported into the Carla simulation software platform.

[0044]The real driving scene simulation method disclosed in this embodiment is developed based on the open source simulation software platform of Carla. Considering the internal implementation of Carla, other simulation software platforms using the Server-...

Embodiment 2

[0050] Embodiment 2: On the basis of Embodiment 1, this embodiment extends the step of generating the simulation scene file, which includes two sub-processes: using the two-dimensional scene marked with the position information and type of static traffic elements Compress the map and road network data to construct a 3D model of the simulation scene; insert dynamic traffic elements according to the marked dynamic traffic element type and trajectory, add the FBX model data path, and complete the construction of a complete simulation scene library file. The other parts of Embodiment 2 are the same as Embodiment 1, and Embodiments 1 and 2 can be combined with other embodiments to form more embodiments. As long as there is no substantial conflict, it is feasible to combine with each other, limited by space No further details are given here.

Embodiment 3

[0051] Embodiment 3: This embodiment further expands and improves on the basis of Embodiment 1, Embodiment 2 and the combination of the two embodiments:

[0052] In the multi-sensor data fusion process based on the multi-sensor data acquisition platform, the sensors carried by the multi-sensor data acquisition platform include but are not limited to mechanical three-dimensional lidar, solid-state lidar, single / binocular industrial cameras, wide-angle cameras, inertial navigation, Common autonomous driving sensors such as ultrasonic and differential GPS; sources of multi-sensor data include but are not limited to self-driving collection, data purchase from map vendors, roadside unit collection and real vehicle road testing. The present invention uses self-driving acquisition as an example to illustrate the specific application of the entire process; the time synchronization process of multi-sensor data is realized by hardware pulse synchronization, that is, a hardware device tha...

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Abstract

The invention discloses a real driving scene simulation method and system, electronic equipment and a storage medium, and the method comprises the steps: building a three-dimensional space map of a real scene based on a multi-sensor data collection platform, carrying out labeling separation on dynamic and static traffic elements in the real driving scene, outputting local space positions and types of dynamic and static traffic elements in a real scene, generating a simulation scene file, reproducing a real driving scene, and storing the real driving scene as a simulation scene library file which can be imported into a Carla simulation software platform. According to the method, data sources and channels are diversified, the test coverage and authenticity of the simulation scene library are effectively ensured, and the accuracy of global scene mapping is ensured by adopting a data tight coupling fusion mode. According to the invention, a data labeling tool is used for supporting the joint labeling, automatic interpolation labeling and other functions of multi-sensor data; and the continuity of the labeling tracks of the dynamic traffic elements is ensured, and finally the high-reduction-degree building work of the whole scene is realized.

Description

technical field [0001] The present invention relates to a simulation method, system, electronic equipment and storage medium, in particular to a real driving scene simulation method, system, electronic equipment and storage medium. Background technique [0002] In recent years, with the rapid development of autopilot technology, the corresponding autopilot function testing requirements have also greatly increased. Conventional software testing methods and real vehicle testing are far from meeting the rapidly growing testing requirements. Therefore, simulation autopilot testing is gradually become the mainstream testing method. The usual simulated autonomous driving test method requires manual construction of the test environment and design of various driving behaviors in advance, which is inefficient and not realistic enough to fully test the autonomous driving function. Although the tool chain based on commercialized simulation scene construction can quickly build a test s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T19/00G06T19/20
CPCG06T17/00G06T19/006G06T19/20
Inventor 周锐孙佳优曹东璞
Owner 深圳慧拓无限科技有限公司
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