P89LPC932单片机在电能表中的应用设计

The Design of Application in Electric Energy Based on Single-chip P89LPC932

介绍了基于LPC932单片机为处理器的电能表的硬件结构和软件流程。该仪表集电量参数监测计量与显示一体化,电量参数监测采用专用测量芯片CS5460A,采用128×64点阵液晶显示器。该仪表具有集成化程度高、功能强、系统结构简单、成本低、抗干扰能力强、功耗低等优点,满足电能智能化管理要求,易于产品化。此方案集中讨论影响系统精度,稳定性的软硬件设计。

The paper introduces the hardware structure and software procedure of the intellectual meter for measuring electric energy based on the microprocessor of LPC932.The meter adopts the special-purpose chip CS5460A to monitor and measure the power parameters and uses 128x64 LCD to display the results.This meter bears the merits of high integrated degree,powerful function,simple structure,low costs,powerful anti-interference ability and low power consumption,which meet the requirement of the intellectual management for electric energy and also make the instrument easier to be produced.This scheme concentrates on design for the software and hardware,which influences the systematic precision and stability,while simply introduces other relative content.