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Embedded Computer Adopted in Rotating Machinery Monitoring and Protection System

Author: LiWeiGuo
Tutor: FangAnPing
School: Wuhan University of Technology
Course: Applied Computer Technology
Keywords: Embedded OS μC/OS-Ⅱ Middleware Rotating machinery monitoring and protection system
CLC: TP277
Type: Master's thesis
Year: 2006
Downloads: 47
Quote: 0
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Abstract


With the continuous development of computer hardware and software and microelectronics technology, intelligence technology is penetrating into various fields, including the instrument and meter industry. Using the intelligence technology of hardware and software make every instrument/meter precisely analyzes and handles the current and previous data which improves the performance and efficiency of current measurement system and expand the functions of conventional measurement system. The adoption of MPU and MCU technology in instrument/meter realizes the performance of high-speed, high-efficiency, multi-functions and flexibility.Presently, the intelligence and stability of rotating machinery monitoring and protection system there are some disparity between domestic ones and international ones. To achieve or overtake the same performance of congener products need set up a multifunction, stable and reliable software and hardware platform. Occurrence of ARM core offers the excellent hardware basis, and real-time OS is best software settings based on the hardware platform.The thesis is mainly for the discussion of embedded processor and OS being adopted in rotating machinery monitoring and protection system. The system is made up with manager module and function module, the hardware part of manager module is made up with 32-bit embedded MCU S3C44B0X, a LCD and a touch screen, function module adopts the MCU of LPC2104, both of modules adopt μC/OS-Ⅱ as software platform. The thesis mainly narrates system framework and design of manager module.The design method is briefly introduced in the thesis, including the selection of hardware parts, the design of hardware circuit and software. The framework and function requirements of rotating machinery monitoring and protection system are stated in details. Data management and transfer is one of the main works of manager module. The methods of realization of the common communication protocol in industrial control field, i.e. MODBUS and its application in the sestem are introduced. For the hard part in technique, the transplant of OS, is introduced in details and the boot code romstart.s is analyzed.The realization methods of main middlewares are introduced in details in the thesis, including in-circuit programming, UART communication, LCD and touch screen middleware. Actual function realization modules are introduced, including curve, bar, setting module. Finally, the thesis discusses the multi-task scheduling policies, priority setting and taskscheduling method of manager module.

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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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