A kind of inspection method of surface material
A technology of surface materials and inspection methods, applied in the field of evaluation and inspection of surface materials, can solve the problems of inability to accurately obtain the geometric parameters of hard mold materials, long test cycles, and high costs, so as to solve the problem of business flow error accumulation and improve production quality , Improve the effect of production process
Active Publication Date: 2021-05-25
GEELY AUTOMOBILE INST NINGBO CO LTD +1
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Problems solved by technology
[0009] In order to solve the above-mentioned technical problems, the present invention proposes a method for evaluating and testing millimeter-wave radar surface materials, in particular, it is an evaluation and testing method for the second surface hard film material of millimeter-wave radar based on an overall least squares classifier, through Based on the laser point cloud data on the surface of the hard mold material, the data processing is carried out through MATLAB software, and the parameters such as the surface smoothness, uniformity and thickness of the hard mold material are directly estimated, which solves the problem that the hard mold material cannot be accurately obtained in the prior art Geometric parameters, long test cycle, low efficiency and high cost
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[0038] The technical solutions in the embodiments of the invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the invention. Obviously, the described embodiments are only some, not all, embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0039] Such as figure 1As shown, it shows the installation form of the common millimeter-wave radar in the car. The millimeter-wave radar 2 is usually installed on the front grid 1 of the car. Based on the favorable detection angle to the front of the car body, the millimeter-wave radar 2 is generally installed It is installed in the middle position of the front grid 1 of the car. A second surface hard mold material 3 is arranged on the front surface of the millimeter wave radar 2 ,...
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The present invention is based on the point cloud data acquired by the mature laser point cloud scanning technology, and utilizes the evaluation and inspection method based on the total least squares method to quickly, accurately and automatically identify, intercept and classify the point cloud data, and can accurately calculate the weight of the module material. Surface roughness, thickness and side parallelism can be used for effective / quantitative verification and evaluation of modules and their production processes; effectively solve the problem of business flow error accumulation caused by material production process errors, thereby eliminating Electromagnetic signal distortion and distortion caused by errors; automated program batch processing can be integrated into the automatic calibration module of material production equipment, which is conducive to improving production technology, improving product consistency, ensuring product quality control accurately and efficiently, saving Time and production costs, improve the production quality of sub-links, and effectively create economic benefits.
Description
technical field [0001] The invention relates to the field of automobile millimeter-wave radars, in particular to an evaluation and testing method for surface materials of millimeter-wave radars. Background technique [0002] With the continuous improvement of automobile intelligence, especially the rapid development of intelligent driving and driverless driving, radar detectors have been widely used in automobiles to detect the environment around the automobile and provide information on the automobile and surrounding obstacles. Data such as distance, angle, relative speed, and driving trajectory are widely used in automobile systems such as reverse warning, collision warning, automatic braking, adaptive cruise control, blind spot detection, and lane change assistance. And it is foreseeable that radar detectors will also play a very important role in driverless technology. [0003] Common radars on cars include ultrasonic radar, infrared radar, lidar, camera and millimeter-...
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IPC IPC(8): G06T7/00G01S13/88
CPCG01S13/88G06T7/0004G06T2207/10028G06T2207/10044
Inventor 卢红喜陈文琳张韬时冰金晨
Owner GEELY AUTOMOBILE INST NINGBO CO LTD