Abnormal sound detection method and abnormal sand detection system for automobile seat slide rail

A technology for a car seat slide rail and a detection method, which is applied in the directions of measuring devices, testing of mechanical parts, and testing of machine/structural parts, etc. Eliminate artificial instability, improve accuracy, and high detection efficiency

Active Publication Date: 2019-06-28
宁波慧声智创科技有限公司
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[0004] Aiming at at least one defect or improvement requirement of the prior art, the present invention provide...

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  • Abnormal sound detection method and abnormal sand detection system for automobile seat slide rail
  • Abnormal sound detection method and abnormal sand detection system for automobile seat slide rail
  • Abnormal sound detection method and abnormal sand detection system for automobile seat slide rail

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[0056] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0057] figure 1 It is a flow chart of the method for detecting abnormal sound of the car seat slide rail provided by the embodiment of the present invention; figure 1 As shown, the method includes the following steps:

[0058] S1: Obtain the original vibration signal as a training sample and perform noise reduction processing on it to obtain an effective vibration signal;

[0059] In order to...

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Abstract

The invention discloses an abnormal sound detection method and an abnormal sand detection system for an automobile seat slide rail. The method comprises the following steps: S1, acquiring an originalvibrating signal as a training sample and denoising the original vibrating signal to obtain an effective vibrating signal; S2, extracting characteristic parameters such as a time domain characteristic, a frequency domain characteristic and an envelope characteristic in the effective vibrating signal; S3, inputting the characteristic parameters to a mixed model to train the model to obtain an abnormal sound recognizing module and a mixing matrix corresponding to the abnormal sound recognizing module, wherein the mixing matrix comprises a test accuracy of an abnormal recognizing module; and S4,inputting the to-be-detected original vibrating signal to the corresponding abnormal sound recognizing model, the testing accuracy of which is higher than a preset value, to judge the to-be-detected original vibrating signal automatically. By means of a detection means based on industrial big data and robot learning model, automatic recognition can be achieved, and the method is high in detectionefficiency, excludes manual unstable factors and improves the detection accuracy.

Description

technical field [0001] The invention belongs to the technical field of abnormal sound pattern recognition, and more specifically relates to a method and system for detecting abnormal sound of a slide rail of an automobile seat. Background technique [0002] my country is the world's largest production and sales market for car seat slides. With the advent of industrial automation and intelligent manufacturing technology, most of the production links of car seat slides have been fully automated. [0003] Abnormal sound detection is an indispensable inspection link before the car seat slide rail leaves the factory. At present, the slide rail is still transported to the quiet room separately, and skilled workers slide it on the tooling, and assist with sound level meter and other technologies means to detect abnormal noise. The efficiency of this detection method is low, and abnormal sound detection has become a constraint on the production rhythm of the slide rail; at the same...

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Application Information

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IPC IPC(8): G01M13/00G01H17/00
Inventor 李贤燚万海波张星
Owner 宁波慧声智创科技有限公司
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