Automatic detection method of airbag ignition process parameters and anomalies based on machine vision

Abstract

The invention belongs to the field of machine vision detection, and in particular relates to an automatic detection method for parameters and abnormalities of airbag detonation process based on machine vision; the method firstly designs the spatial positional relationship between multiple cameras and airbags to ensure that the algorithm can be more efficient. High robustness to airbag detonation process parameter measurement and anomaly detection. At the beginning of the airbag detonation process, multiple cameras perform synchronous image acquisition until the detonation process ends; the images are sorted and grouped, and the grouped images are divided into airbags to generate the V of the airbag. approx ‑t curve, which divides the airbag detonation process; T in the airbag detonation process t1 ~T t2 During the time period, the airbag pop-up abnormality detection is performed, and the T of the airbag detonation process is t2 ~T t3 The topological shape of the airbag space is restored and the parameters of the airbag are measured in the time period, and finally the parameters and abnormal information of the airbag detonation process are displayed; the detection process of the present invention is efficient and flexible, the detection results are well visible, and the application range is wide, which can be applied to automobiles Air bags in all positions.

Description

technical field [0001] The invention belongs to the field of machine vision detection, in particular to an automatic detection method for parameters and abnormalities of an airbag detonation process based on machine vision. Background technique [0002] Airbags have been widely used in the automotive industry as the main driver and passenger safety protection restraint system in the event of a car collision. The various characteristics and parameters after the airbag is detonated directly affect the safety of people. Factors such as the rationality of the airbag design, the correctness of the installation, and the safety of the detonation process directly affect the use of the airbag. The most direct reflection of the performance of the airbag detonation process is the various parameters during the detonation process, the topological shape of the airbag, and whether there is any ejection abnormality and other factors. Therefore, it is of great significance to design the th...

AI Technical Summary

Problems solved by technology

However, the above method cannot measure the different abnormalities that may occur in different time periods of the airbag, and cannot perform three-dimensional restoration of the entire airbag. The provided airbag parameters are less and the universality is poor.

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