1、毕业设计论文毕业设计论文 题题 目：电能表的校验系统目：电能表的校验系统 系系 部：部： 专专 业：业： 班班 级：级： 姓姓 名：名： 学学 号：号： 指导老师：指导老师： 摘 要 该系统主要由显示模块、键盘模块、时钟模块、存储模块、通讯模块、 CPU 模块、CS5460A 电能表芯片模块和前端电路调理模块部分组成。前端电路 调理模块采用2mA/2mA的电流互感器和5A/2.5mA电流互感器和精密电阻实现 对市电的转换，并采用 RC 滤波网络滤波,然后采用由美国 CRYSTAL 公司的新 型电能计量芯片 CS5460 芯片实现对电流、电压和电能的测量与转换；时钟模 块采用 DS1302 时钟
2、芯片为系统提供时钟基准，存储模块采用 AT24C16，为系 统提供数据存储；显示模块用 OCMJ4X8CM 液晶，通信模块采用 Max232 芯片， 并利用 AT89S52 组成的 CPU 模块控制所有芯片的工作、测量、计算电能，送 往显示模块和存储模块进行实时显示和存储， 并通过标准 232 接口送往 PC 上 位机进行同步显示， 并且本电能表还设有 GPIB 地址， 以便于电能管理系统对 电能的管理。 关键字关键字：CS5460A；AT89S52；232 通讯；OCMJ4X8CM； Abstract This system is mainly revealed the module, ke
3、yboard module, clock module, store module, communicate module, CPU module, CS5460A electric energy meter chip module and front circuit look after the part of the module to make up. The front circuit recuperates the module and adopts electric current mutual inductor and 5A/2.5mA electric current mutu
4、al inductor and accurate resistance of 2mA/2mA to realize the conversion of the city electricity, and adopt RC to strain the wave network and strain the wave, then adopt measure chip, CS5460 of chip, realize to electric current, voltage, measurement and conversion of electric energy by new electric
5、energy of Company, CRYSTAL of U.S.A.; The clock module adopts DLS1302 clock chip to offer the clock basis for system, stores the module and adopts AT24C16, offer the data for system to store; Reveal the module uses OCMJ4X8CM liquid crystal, the communication module adopts Max232 chip, and utilize CP
6、U module that AT89S52 makes up to control the work of all chips; Measure, calculate electric energy, send to is shown the module and stores the module and pays revealing and storing in real time, send PC to location plane go on reveal and this electric energy meter have GPIB address also synchronously through standard 232 interface, so that the control over electric energy of administrative system of electric energy. Keywords: CS5460A; AT89S52; 232communication;OCMJ4X
