Vehicle Perception Speed Delay Testing for Low-Speed Obstacles
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Solution Overview
Problem
Vehicle perception systems are insensitive to obstacles moving at low speeds, leading to potential collisions due to delayed speed perception, as existing evaluation methods focus on speed magnitude and direction errors rather than sensitivity to low-speed obstacles.
Innovation Solution
A testing method and apparatus that acquire actual and perceived speeds of a test object to determine the speed reporting delay time of the vehicle perception system, reflecting its sensitivity to low-speed obstacles, by comparing actual and perceived speed changes over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If evaluation focuses on speed magnitude error and direction error, then measurement precision for high-speed obstacles is improved, but sensitivity to low-speed obstacles deteriorates
Solution Approach 1:
The patent introduces a new evaluation parameter (speed reporting delay time) that changes the focus from static speed magnitude accuracy to dynamic speed change detection capability. This parameter transformation enables the system to evaluate and improve low-speed obstacle detection sensitivity without compromising high-speed measurement precision.
2Ease of operation
If the vehicle perception system uses traditional speed evaluation indicators, then evaluation simplicity is improved, but detection sensitivity to low-speed obstacles deteriorates
Solution Approach 1:
The patent transforms the evaluation approach by introducing speed reporting delay time as a new indicator that maintains computational simplicity while fundamentally improving low-speed detection sensitivity. The parameter change allows the system to identify delays in detecting low-speed obstacles without requiring complex evaluation metrics.
3Measurement precision
If the system prioritizes speed magnitude accuracy, then measurement precision for fast-moving obstacles is improved, but response time for low-speed obstacles deteriorates
Solution Approach 1:
The patent applies preliminary action by proactively measuring and evaluating the speed reporting delay time before it causes safety issues. By continuously monitoring the time delay between actual speed changes and perceived speed changes, the system can identify and address detection delays in low-speed obstacles before they lead to collisions.
Solution Approach 2:
The introduction of speed reporting delay time as an evaluation parameter shifts the focus from purely accuracy-based metrics to time-sensitive detection capabilities, enabling the system to optimize response time for low-speed obstacles without sacrificing speed magnitude accuracy for fast-moving objects.
Data Source
AI summary
The present application discloses a testing method and apparatus for a vehicle perception system, a device and a storage medium, and relates to data processing and, in particular to the field of artificial intelligence such as automatic driving, intelligent transportation, etc. A specific implementation scheme lies in: acquiring an actual speed and a perceptual speed of a test object, where the perceptual speed of the test object is a speed of the test object perceived by the vehicle perception system; determining, according to the actual speed of the test object and the perceptual speed of the test object, speed reporting delay time of the vehicle perception system, where the speed reporting delay time is used to reflect sensitivity of the vehicle perception system to perceive a speed of an obstacle.