多用户电能表的应用设计_毕业设计报告.docVIP

PAGE   PAGE \* MERGEFORMAT 24 多用户电能表的应用设计 课程设计报告 姓 名： 学 号：200901101026 专 业：电气工程及其自动化 班 级：09-2班 邮 箱： 指导教师： 摘要 电子式电能表是通过对用户供电电压和电流实时采样，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,通过计度器或数字显示器显示用户使用的电量。本文将设计一个以C8051F360芯片为核心，配有电能转换模块、LED显示模块、掉电存储模块等功能模块，实现对八户的用电状况进行采集检测。 本次设计用户数为八户，即实现八位用户循环显示电能量。同时，基于E2PROM 24C16芯片实现单片机的掉电数据保护，基于74HC165芯片实现单片机的清零。 基于AD7755芯片实现电能脉冲的发生；应用单片机C8051F360编制程序完成脉冲的读取、计数、计算、存储、送显示等功能；应用74HC164及八段译码显示器完成数据的显示；应用74HC165及键盘控制对脉冲清零；应用E2PROM 24C16完成数据的定时写入以防停电时数据丢失。 关键词：8用户电能表；AD7755；24C16；C8051F360 ABSTRACT Electrical meter is through user power supply voltage and current real-time sampling, using special integrated circuit of electric energy meter, the sampling voltage current signal processing and multiplication convert to electric proportional to the pulse output, through the JiDuQi or digital display shows users with the use of the power. This paper will design a C8051F360 chips as the core, equipped with electric energy conversion module, LED display module, power lost storage module function module, realizes to eight of the power consumption and the collection detection. The design for the eight users at the single chip microcomputer chip realize 24 y E2PROM chips was the power lost data protection, based on the 74 HC165 chip microcontroller cleared of realization. Based on AD7755 chip realize the energy pulsing occur; C8051F360 single chip microcomputer application program to complete pulse to read, counting, computation, storage, send display function; Application HC164 and eight section 74 decoding display finish data display; 74 HC165 keyboard control and application of pulse reset; Application E2PROM chips was complete data of the timing 24 y write in case of power data is lost. 意见与反馈 参加有道翻译用户满意度调查！ Keywords：electric energy meter; 8 the user watt-=2%Ib=0.1 脉冲数：3200kw.=0.001 脉冲数：1000KW.H 图3.6.3 AD7755电能脉冲发生器 3.7 键盘设计电路 图3.7 键盘设计电路 键值1234键码F7HEFHDFH