多用户电能表课程设计报告.doc

多用户电能表的应用设计 课程设计报告 姓 名： 张建伟 学 号： 200901100832 专 业： 电气工程及其自动化 班 级： 09-2班 邮 箱： 1031639421@163.com 指导教师： 公茂法 2012年6月28日摘要 本文主要涉及一个多用户电子式单相电能表，以C8051F360单片机为核心，具有电能变换、LED显示、掉电存储、按键清零等功能模块，通过对用户供电电压和电流实时采样，并采用专用的电能表集成电路，对采样电压电流信号进行处理并相乘转换成与电能成正比的脉冲输出,再经过计数器和LED显示器实现对8用户的用电情况进行集中检测、循环显示、掉电存储等功能。各户的用电量可以就地读取，有效地提高了电能计量的准确性，而且整机电路简单，可靠性高，另外在多用户电子式电能表的前面有6位LED数码管，前两位为分户号，后四位为分户用电量，所显示的用电量与分户号相对应。设计中采用了查找资料、protel画原理图、软件编程调试等方法，最终实现了在数码管上8用户电量集中循环显示的功能。 关键词：8用户电能表；AD7755；C8051F360 ABSTRACT This paper mainly involves more than a user electronic single-phase watt-hour meter, to C8051F360 microcontroller as the core, with power transformation, the LED display, power lost storage, buttons and reset function modules, through user power supply voltage and current real-time sampling, and the use of a special electric energy meter integrated circuits, the sampled voltage current signal processing multiplication convert to electric proportional to the pulse output, and by the counter and LED display to realize the power of the users are 8 concentrated check, circulation, the display of power lost storage etc. Function. Each of the electricity consumption can read in situ, effectively improve the accuracy of electric power measure, and the circuit is simple, high reliability, high in many other users of the electrical meter in front of six LED digital tube, the top two for no. Of the individual, after four for the individual power consumption, shows power consumption and corresponding to the number of the individual. Design with the search for material, draw principle diagram and software protel programming commissioning method, and finally achieved in digital tube power users on 8 cyclic display function. Keywords: 8 user watt-hour meter；AD7755；C8051F360 目 录 绪论 4 1 设计任务与要求 5 1.1 设计目的 5 1.1.1 硬件设计 5 1.1.2 软件设计 5 1.1.3 已知参数 5 1.2 设计要求 5 2 设计原理 6 2.1 设计系统方案 6 2.2 设计方案框图 6 3 硬件电路设计 7 3.1硬件设计综述 7