The Research Of Embeddedanalyzers Based On ARM_Linux

Electric harmonic since the date of alternating currents generated had been there. With the development of science and technology, more and more of the power electronic devices use the power of harmonic pollution caused by the increasingly serious to the power supply system, the electrical equipment and power network has caused severe security hidden danger. Meanwhile in recent years, with the development of national economy of high-precision electronic instrument into production and living areas of the power supply quality makes the professions requirement also constantly improved. Therefore achieve power system parameter rapid, accurate measurement of high safety and economic value. This thesis is aimed at the power system harmonic measurement actual requirements and puts forward design scheme.In view of the present in power system harmonic measurement requirements, this thesis proposes embedded technology is applied to electric harmonic detection. This paper main job is to use S3C2440 ARM920T core processor and real-time operating system Linux, through combining with the hardware design of the migration of system set up embedded analyzers platform. This article first harmonic harm, the causes, such as management standard simply introduces several different, and separately calculated method of harmonic described and compared. And then focuses on the design of hardware and software components.Hardware part, in order to meet the high efficiency of harmonic analyzer this design USES a Samsung's S3C2440 as the core to build hardware platform. In order to satisfy the system data acquisition, signal transfer and other function separately carried on the data acquisition unit, man-machine communication unit and signal transmission unit design.Software parts, first for data sampling, respectively interrupt service and calculating data on the different modules designed and the corresponding flow chart. Then based on the analysis of the embedded real-time operating system Linux system realizes the transplant and established the system's root for the next application documents the development of specific lay the foundation. Finally based on this completed the harmonic analysis application design.In system software and hardware platform, use simple after the program to the data analysis by external LCD on the system test.In the final aimed at this paper summarized and prospected. Points out the design areas in need of improvement and the to such analyzer was prospected.