Fault detection method, device and system for electromechanical equipment

Abstract

The invention provides a fault detection method. Sound of the electromechanical equipment in a normal running state is different from that of the same in a fault state generally, so that whether the electromechanical equipment is in the fault state or not can be determined by only placing sound collection equipment around the electromechanical equipment to collect the sound of the same, extractingsound print features from collected sound and utilizing a sound print library to verify the extracted sound print features. A contactable sensor does not need to be mounted on the electromechanical equipment, own physical features of the electromechanical equipment do not interfere the sound collection equipment, so that limitation on fault detection of the electromechanical equipment is small, fault detection accuracy of the electromechanical equipment is improved, and accidents occurring in an area where the electromechanical equipment is positioned are avoided. The invention further provides a device and a system for the electromechanical equipment. The device and the system have the above advantages.

Description

technical field [0001] The invention relates to the electromechanical field, in particular to a fault detection method, device and system for electromechanical equipment. Background technique [0002] Electromechanical equipment refers to equipment composed of machinery and electronics. The goal of working is achieved by electronically controlling mechanical devices, which is a symbol of industrialization. Mechanical and electrical equipment generally includes various mechanical processing equipment, automated production lines, industrial robots used in the machinery manufacturing industry, and mechanical equipment used in other industries, such as textile machinery, mining machinery, etc. [0003] For these electromechanical equipment, accurate fault detection of the electromechanical equipment in the running state is an important guarantee to avoid accidents. At present, the detection method of whether the electromechanical equipment fails in the running state is usually t...

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Problems solved by technology

However, with this method, on the one hand, the installation of contact sensors on electromechanical equipment not only requires installation technology, but also has great limitations, such as where to install the electromechanical equipment, how to fix the vibration sensor, etc.

On the other hand, for contact sensors, the physical characteristics of the electromechanical equipment itself (such as electromagnetic characteristics) will have a greater impact on the accuracy of the collected signals. Therefore, due to the low accuracy of the signals collected by contact sensors, correspondingly, for electromechanical The fault detection and recognition rate of the equipment is also low. If the fault condition of the electromechanical equipment cannot be accurately detected, it is easy to cause serious accidents in the area where the electromechanical equipment is located.

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