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Research and Design of on Line Fault Diagnosis and Monitoring System of the Oil Pumping Machine Based on GPRS

Author: GuoKai
Tutor: PanZuoZuo
School: Lanzhou University of Technology
Course: Control Theory and Control Engineering
Keywords: Pumping unit Fault Diagnosis C8051F020 MCU GPRS wireless communication BP neural network
CLC: TP277
Type: Master's thesis
Year: 2009
Downloads: 187
Quote: 1
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Abstract


With the rapid development of China's economy and the oil industry, oil field pumping units is far from traditional manual operation and maintenance to meet the requirements of the modern oil production. In order to effectively improve the efficiency of our oilfield production and management level, while safeguarding the security of oil production and reduce labor intensity, the combination of remote real-time monitoring and fault diagnosis method used in oil production. Subject to the pumping unit fault diagnosis and online monitoring study carried out online fault diagnosis monitor beam pumping unit, high-performance microcontroller as the core, using a variety of sensors and GPRS wireless data communication technology, the establishment of reasonable data processing algorithm, developed a line fault diagnosis based on GPRS pumping unit monitors. This paper first describes the working principle and structure of the pumping unit, the development of domestic and foreign the pumping units online monitoring technology, analysis of the pumping unit based on GPRS line fault diagnosis Monitor practical significance. The pumping unit online fault diagnosis Monitor research ideas, and as this research ideas, expand the research work. By analyzing the special requirements of the oil production, the overall structure of the pumping unit based on GPRS online fault diagnostic monitor. Pumping unit line fault diagnosis monitor performance and functional requirements, designed to monitor the composition of the structure, the proposed method of fault diagnosis, and a detailed discussion of the monitor's electromagnetic compatibility. Pumping unit online fault diagnosis Monitor C8051F020 microcontroller as the core research and design of the sensor signal processing circuit, and human-computer interaction module, the motor is stopped, control, communications module interface, and the hardware system with a variety of sensor interface and communications interface. The completed pumping unit online fault diagnosis Monitor software design. Keil C-based software development platform for C language programming tools, system initialization, data acquisition, parameter analysis and fault diagnosis, and wireless communications. The indicator diagram data collection in the study found a limited amount of large volumes of data and GPRS network transmission contradictions. According to previous data compression method, based on BP neural network fitting sucker rod load phase trial BP neural network algorithm for the curve of the time. According to the simulation results in the laboratory, the algorithm can achieve better data compression effect. Run the simulation and data acquisition results of the laboratory analysis, based on the research and design of the monitor GPRS pumping unit line fault diagnosis is feasible. Through data collection and analysis for each detection point, can effectively control the pumping unit run-time state, and its failure to make a diagnosis.

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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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