Intelligent product abnormal sound and noise detection method

Abstract

The invention relates to the fields of product abnormal sound and noise detection and product sound characteristic detection, in particular to an intelligent product abnormal sound and noise detectionmethod. The intelligent product abnormal sound and noise detection method includes an intelligent acquisition unit and an upper computer, wherein the intelligent acquisition unit comprises a hardwarecircuit, and the hardware circuit includes a power circuit, a processor circuit, a memory circuit, a clock circuit, a voltage reference circuit, a modular inlet interface circuit with a constant current source power supply, an analog-digital conversion ADC circuit and a communication interface circuit. The intelligent product abnormal sound and noise detection method solves the problem of the limitation of traditional subjective judgment relying on the human ears in the field of sound detection, overcomes the limitation of simply comparing the sound volume with the sound level, enables the evaluation index of the sound to be multidimensional, and can adopt various methods of modern signal analysis to study the nature of sound / abnormal sound and noise from various perspectives; and the intelligent product abnormal sound and noise detection method plays an important role in promoting complete machine fault positioning, complete machine operating state detection, product quality detection and product early-stage hidden danger detection based on abnormal sound and noise.

Description

technical field [0001] The invention relates to the field of product abnormal sound, abnormal sound detection, and product sound characteristic detection, in particular to an intelligent detection method for product abnormal sound and abnormal sound. Background technique [0002] Abnormal sound / abnormal sound of the product is the abnormal sound produced when the product is working, which is a widespread problem. The abnormal sound may come from the fault or defect of the product itself, or from the abnormal operation of the product caused by the abnormal working environment. Almost every industry has its own abnormal sound detection equipment. For example, the application announcement number is CN206378193U, and the patent titled "abnormal sound detection device for gearbox" focuses on the abnormal sound detection of the gearbox; Abnormal sound detection; the application announcement number is CN106840372A, and the patent titled "multi-channel abnormal sound recording and...

AI Technical Summary

Problems solved by technology

[0004] 1. The function is simple, and many abnormal sound detection equipment can only complete the measurement of the sound level, and cannot analyze complex algorithms such as signal components;

[0005] 2. The real-time performance is poor, and the collection and processing of information are separated. Many abnormal sound collection equipment can only complete the collection of abnormal signals, and do not have the ability to process complex signals in real time;

[0006] 3. Low detection rate and high misjudgment rate

Because the traditional detection technology is too simple, it cannot identify the characteristics of abnormal noise caused by complex reasons, so it cannot be correctly judged

[0007] 4. Unable to connect to the Internet, only local measurement and local storage of data can be performed, and remote measurement and analysis cannot be performed

[0008] 5. The upgradeability is poor, and the functions of the instrument are limited when it leaves the factory. Users can only use the existing functions of the instrument, and cannot carry out secondary development;

[0009] 6. The generality of the industry is poor, most of them are customized instruments, and they can only solve a special problem in a certain industry. When changing the scene or changing the industry, the instrument is completely unsuitable

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