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文章介绍了一种三相交流电参数综合监测仪的设计,该监测仪以AT89S52单片机为核心,运用DSP智能芯片ATT7022B代替了传统仪器中的大量硬件,将多种测量功能集于一身,用一台仪器就可以测量三相交流电的电流电压有效值、有功功率、功率因数、频率等电参数。文中论述了系统的硬件组成、各功能部分的电路设计和系统的软件设计,给出了关键部分的电路图、单片机的数据采集和分析处理程序。
This paper introduces the design of a three-phase AC parameter comprehensive monitor. The monitor takes the AT89S52 single-chip microcomputer as the core and uses the DSP intelligent chip ATT7022B instead of the large amount of hardware in the traditional instrument. It combines multiple measurement functions into one, Instrument can measure three-phase AC current and voltage RMS, active power, power factor, frequency and other electrical parameters. This paper discusses the hardware components of the system, the functional part of the circuit design and system software design, gives the key part of the circuit diagram, microcontroller data acquisition and analysis process.