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Research and Design of Rotating Machinery Fault Diagnosis Instrument Based on Information Fusion

Author: LiWuChao
Tutor: ZhuDaQi
School: Jiangnan University
Course: Detection Technology and Automation
Keywords: Fault Diagnosis Multi - sensor information fusion Fault diagnosis analyzer Digital Signal Processor
CLC: TP277
Type: Master's thesis
Year: 2006
Downloads: 248
Quote: 0
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Abstract


With the advancement of science and technology, modern industrial equipment continue towards the large, heavy-duty, high-speed and highly automated direction development, on the one hand, improve production efficiency, reduce production costs, but at the same time the design of the production equipment and run security put forward higher requirements will result in huge losses in the event of a failure. Improve equipment operation security, reliability, and to ensure the continuity of production to ensure that the corporate pursuit of high economic premise equipment fault diagnosis technology has thus become the hot issue of the scientific research. This paper studies the rotating machinery fault diagnosis technology. Most traditional rotating machinery fault diagnosis method using single-sensor technology, inadequate sources of information, fault diagnosis resolution is not high, often fails false positives, false negatives, and misstatements phenomenon, difficult to meet modern industrial production fault diagnosis technology requirements. This paper focuses on rotating machinery fault diagnosis based on multi-sensor information fusion technology. Multiple sensor acquisition system from multiple perspectives of the different characteristics of the various features of the information or the same sensor information fusion algorithm of these multi-information processing, Finally, based on the integration of information the failure decision making and judgment. The study shows that the multi-sensor information fusion technology is a viable, effective diagnostic methods in rotating machinery fault diagnosis. Firstly, from the reality of the industrial field, pointed out the need to carry out the rotating machinery fault diagnosis technology, currently used in rotating machinery fault diagnosis method and then analyze their inadequacies, on this basis, focuses on the multi-sensor Information fusion technology in fault diagnosis of rotating machinery. Finally, both hardware and software, portable rotating machinery fault diagnosis analyzer structure and design process. This design of fault diagnostic analyzer is mainly provided by the data acquisition unit, the digital signal processor (DSP) and the liquid crystal display components. Sensors to detect the analogue vibration signal after conditioning and A / D conversion, in the DSP, the data processing, the processed data, the waveform directly through the LCD display. TMS320VC5402 chip DSP Texas Instruments (TI Company), liquid crystal using the Jinpeng Chinese electronics companies graphics LCD module ocm4x8c.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Monitoring, alarm,fault diagnosis system
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