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Vehicle lane changing behavior extraction method and system based on test data

A technology of test data and extraction methods, applied in the field of data analysis, can solve the problems of lack of test case coverage, questionable test case parameter design basis, etc., to achieve the effect of improving authenticity

Active Publication Date: 2021-12-17
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the current lane-changing scenarios are designed based on driving experience. They are lacking in both functional scenarios and test case coverage. There are also doubts about the parameter design basis of test cases. Therefore, how to obtain more realistic lane-changing behaviors Become one of the research directions for those skilled in the art

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  • Vehicle lane changing behavior extraction method and system based on test data
  • Vehicle lane changing behavior extraction method and system based on test data
  • Vehicle lane changing behavior extraction method and system based on test data

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Embodiment Construction

[0088] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0089] The embodiment of the present application provides a method for extracting lane-changing behavior of vehicles based on test data, such as figure 1 shown, including:

[0090] S101: Obtain test data, extract vehicle position data in the test data, the vehicle position data includes the position data of the vehicle and the position data of adjacent vehicles, and the position data of the vehicle includes the lane line between the vehicle and the current driving lane The distance...

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Abstract

The invention discloses a vehicle lane changing behavior extraction method and system based on test data. The method comprises the steps of: firstly acquiring the test data, then dividing the test data according to a preset step length, and carrying out subsequent analysis with test cycle data as a unit, so that the situation that judgment is wrong due to sudden change of single test data is avoided; after the test period data is obtained, analyzing vehicle position data and adjacent vehicle position data in the test period data, so as to obtain present vehicle behavior information and adjacent vehicle behavior information; and finally, according to the present vehicle behavior information and the adjacent vehicle behavior information, determining a present vehicle lane changing behavior and an adjacent vehicle lane changing behavior included in each piece of test period data. Therefore, the purpose of extracting the real lane changing behaviors from the test data is achieved, the authenticity of the extracted lane changing behavior is improved, and a foundation is laid for design of test cases closer to real behaviors.

Description

technical field [0001] The present application relates to the technical field of data analysis, and more specifically, relates to a method and system for extracting lane-changing behavior of vehicles based on test data. Background technique [0002] During the driving process of the vehicle, changing lanes and overtaking are common driver operations. It is a comprehensive behavior process in which the driver adjusts and completes his own driving goals based on information such as the distance and speed of surrounding vehicles. [0003] In such a complicated driving process, the driver may make a wrong judgment on the feasibility of safe lane changing and overtaking, which puts the vehicle in potential collision danger. Therefore, in the test scene of autonomous driving vehicles, the lane change scene of the vehicle is undoubtedly a complex traffic scene, and it is necessary to focus on the lane change behavior. [0004] However, most of the current lane-changing scenarios a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C5/08
CPCG07C5/0808Y02T10/40
Inventor 张雅雅王成浩马力
Owner SAIC MOTOR