AT89C51电力系统测控装置硬件电路设计+电路图
摘要电力系统测控装置在电力系统中的主要作用是：采集站内对应一次设备运行状态，包括电压、电流、温度等，经通信实时上送至监控后台。并且监控下传的遥控或遥调命令，执行遥控操作，分合对应开关。64373
本文对电力系统测控装置在国内外的发展及研究方向进行了介绍，并作了其在电力系统应用中的功能需求分析。文章的主要任务是进行了硬件电路的设计。文中讲述了设计的思想，提出了电路设计的总体方案，重点描述了各个电路的原理，包括：开关量输入输出电路、模拟量输入电路、A/D转换电路和键盘电路、通讯电路、存储器扩展电路等单片机最小系统外围电路。本文的最后工作是在Protel软件上进行原理图的绘制，并将各元器件封装，生成pcb文件。
毕业论文关键词: 测控装置 功能需求 硬件电路设计 Protel软件
毕业设计论文外文摘要
Title Hardware Circuit Design of Measure and Control Device in Electric Power System
Abstract The main role of power system monitoring and control devices in the power system is collecting equipment operating status, they are voltage, current, temperature and so on .They can be send via the communication on the real-time monitoring background. The equipment can pass the control of the remote or remote adjustment commands, then execute remote operation and separate switches.
The development and research directions in recent years of power system monitoring and control devices were introduced in this paper. And the paper made the functional requirements analysis in power system application of this equipment. The main job of this paper was hardware circuit design. The paper told the thinking and put the overall program forward of the design, The theory of various circuit was described in this paper, including switch input and output circuit, analog input circuit and A / D conversion circuit and smallest single-chip system peripheral circuit such as keyboard circuit, communication circuit, memory expansion circuit. The last job of this paper was drawing the schematic on the Protel software, then packaging all the components and generating the pcb file.
Kewords Measure and Control Device、Functional Requirements、Hardware Design、Protel Software
1 绪论 1
1.1 引言 1
1.2 发展现状及发展趋势 1
1.3 本课题研究背景及意义 3
1.4 本文的主要工作 3
2 电力系统测控装置 4
2.1 测控装置功能分析 4
2.2 总体方案设计 6
3 系统硬件电路设计 8
3.1 CPU选择及性能介绍 8
3.2 单片机最小系统外围电路设计 10
3.2.1 电源电路 10
3.2.2 晶振电路 11
3.2.3 复位电路 11
3.2.4 存储器扩展电路 12
3.2.5 通讯电路 14
3.2.6 键盘电路 15
3.2.7 显示电路 16
3.2.8 报警电路 17
3.3 开关量输入电路