Real-time fault diagnosing and early warning device for coal mine ventilator based on virtual instrument development platform

Abstract

The present invention relates to a coal mine ventilator real-time fault diagnosis and early warning device based on a virtual instrument development platform (LabVIEW), including an integrated industrial computer, a vibration signal detection module, an ARM processor, a stabilized power supply module, an SD storage module, and a USB interface chip. The vibration signal detection module processes the detected vibration signal and transmits it to the A / D analog-to-digital converter of the ARM processor, and the ARM processor transmits the processed digital signal to the integrated industrial computer through the USB interface chip or stores it in the SD storage module . The LabVIEW platform of the integrated industrial computer calls the algorithm program in MATLAB through the MatlabScript node, and performs wavelet denoising filtering, CEEMDAN feature extraction, Hilbert transform, and improved support vector machine classification and recognition on the fan vibration signal transmitted to the industrial computer. , the final result of fault diagnosis is displayed on the front panel interface, and the early warning module is called to sound and light alarm for fault information, and sound and light early warning for hidden faults. The device has good real-time performance, high openness, friendly man-machine interface and high reliability.

Description

technical field [0001] The invention relates to the field of fault diagnosis of rotating mechanical equipment, in particular to a real-time fault diagnosis and early warning device for a coal mine ventilator based on a virtual instrument development platform. Background technique [0002] As one of the key equipments in the coal mine ventilation system, the mine ventilator is known as the "heart of the mine". It delivers a large amount of fresh air to the mine, dilutes and discharges CO and NH 3 Toxic and harmful gases, etc., can also adjust the required air volume of the underground working face, greatly reducing the gas concentration of the underground working face. Mine ventilators are of great significance to improving the working conditions of underground work sites for safe production. Whether it fails or not will directly affect the progress of downhole production, and even bring irreparable loss of life and property. Therefore, it is necessary to carry out fault d...

AI Technical Summary

Problems solved by technology

This technical solution uses PCI boards for analog / digital conversion of vibration signals, which is costly and takes up space, and this technical solution does not reflect the early warning function

The Chinese invention patent with the publication number CN103671190A "On-line Fault Diagnosis System for Intelligent Early Mine Ventilators" uses a PLC control cabinet for data collection in its lower computer, which is bulky and complicated to install

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