Multi-line Laser Radar Offline Acceptance Workshop
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Solution Overview
Problem
Existing detection methods for multi-line laser radar in automatic driving devices are not suitable for offline acceptance in mass-produced automatic driving devices, as they fail to ensure accurate installation and normal function, particularly in terms of laser scanning frequency, azimuth deviation, and data matching with the real scene.
Innovation Solution
An offline acceptance workshop with a structured setup including a workshop main body, acceptance parking platform, acceptance detection means, and acceptance control system, which uses scanning sign posts, a mobile car, and data processing algorithms to judge the installation and function of multi-line laser radar through frequency, clustering, horizontal, and orientation judgments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing detection methods are used for multi-line laser radar, then the detection process is simple, but the detection accuracy and reliability are insufficient for mass-produced automatic driving devices
Solution Approach 1:
The detection system is divided into multiple independent detection modules: installation position detection means to detect whether the laser radar is installed at the correct position, laser scanning frequency detection means to detect the scanning frequency, azimuth deviation detection means to detect angular deviations, and data matching detection means to verify data consistency. Each module independently detects a specific aspect, improving overall detection accuracy without requiring a single complex detection system.
Solution Approach 2:
A standard test scene is introduced as an intermediary object for detection. The test scene includes standard positioning markers and reference objects with known geometric relationships. The laser radar scans this standardized scene, and the detection system compares the scanned data against expected values to determine installation correctness and functional performance, providing an objective reference for accurate detection.
2Reliability
If comprehensive function detection is performed including laser scanning frequency, azimuth deviation, and data matching, then the reliability of detection is improved, but the detection time and complexity increase
Solution Approach 1:
The test scene is pre-configured with standard positioning markers and reference objects at known locations and orientations before detection begins. This preliminary setup eliminates the need for complex real-time calculations of scene geometry during detection. The laser radar simply scans the pre-established scene, and the system compares results against predetermined expected values, significantly reducing detection time while maintaining comprehensive detection coverage.
3Adaptability or versatility
If multiple detection parameters are measured including frequency, azimuth, and data matching, then the comprehensiveness of detection is improved, but the device complexity increases
Solution Approach 1:
The detection system uses a universal test scene that can detect multiple parameters simultaneously. The same standardized scene with positioning markers and reference objects serves for installation position detection, scanning frequency measurement, azimuth deviation detection, and data matching verification. This multi-functional approach allows comprehensive detection without requiring separate specialized equipment for each parameter, reducing overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method provides accurate and reliable detection of multi-line laser radar installation and function, suitable for mass-produced automatic driving devices, ensuring precise positioning and high automation performance, thus enhancing detection accuracy and efficiency.
Implementation Method 1
multi-line laser radar can simultaneously transmit and receive multiple beams of laser to achieve laser scanning within a 360 degree
Data Source
AI summary
A method for using an offline acceptance workshop of a multi-line laser radar automatic driving device (100). The offline acceptance workshop comprises a workshop main body (1), an acceptance parking platform (2), an acceptance detection device (3) and an acceptance control system. The acceptance parking platform (2) comprises a horizontal platform (21), a parking positioning device (22) and a parking fixed point device (23); the acceptance detection device (3) is arranged on a side wall, opposite to the outlet (11), of the workshop main body (1); the acceptance control system is used for controlling the work; the workshop can automatically point and position the automatic driving device (100); whether the installation of the multi-line laser radar is accurate can be quickly and effectively detected; and whether the function is normal or not can be quickly and effectively detected.