毕业设计（论文）-小型水电站计算机监控系统.doc

攀枝花学院毕业设计(论文)

小型水电站计算机监控系统
学生姓名:
学生学号: 200320520047
院(系): 电气信息工程学院
年级专业: 03级应用电子技术(2)班
指导教师:
助理指导教师:
二〇〇六年六月
摘要
本课题分析了国内外小型水电站计算机监控系统的发展状况,特别是国内小型水电站的监控系统的现状,针对国内小水电的特点,研制开发了一种新型的小型水电站监控系统。该系统应用相对独立的单元监控装置对小型水轮发电机组实行一对一的控制与检测。系统由下位机监控装置和上位PC机嵌入式系统可视化编程软件构成。下位机监控装置采用分布式结构的模块化设计,以Motorola的16位Flash型MCU作为处理器,结合必要的外部电路实现装置的模拟量输入功能、测量功能、开关量输入功能、控制输出功能、就地设置和显示功能以及通讯功能等。上位机嵌入式系统可视化编程软件采用面向对象的编程语言Visual Basic ,同时利用软/硬件协同设计的方法,使烦琐复杂的针对硬件的控制编程变得简单、直观,实现在线过程编程,然后通过RS232通讯接口或者USB通讯接口将控制程序下载到下位机装置的FLASH页中,下位机装置则按照下发的程序流程执行相应的测量、检测和控制功能,可重复擦写的FLASH中下载程序的内容和顺序的不同使得同一个装置可以实现不同的功能,达到下位机装置的一机多用。根据三背河水电站提供的开机、关机操作票和日常监测流程内容进行系统功能的验证,经实验证明该系统能达到预期的效果。
关键监控系统,模块化设计,嵌入式系统
ABSTRACT
This paper analyzes the development of puter supervisory & control system which is used in small hydropower stations on abroad and at home. Based on the status quo of the small hydropower station at home, a new supervisory & control system is developed for small hydropower station. Device and software are included. Device acts as a unit for a generator set and software provides friendly interface to monitor and control assistant devices. Device is distributed designed and made up of microprocessor and periphery electro-circuits. Motorola HC12 MCU acts as Core and analog measure module, switch status monitor module, relay control module, LCD display module munication module are included in periphery electro-circuits. Software is developed by Visual Basic and database is developed by SQL Server . With the software, device can operate with the procedure step by step which is solidified munication between PC and device. USB and munication interfaces are available in device which munication easy. puter supervisory & control system is tested by Sanbeihe hydropower station handbook and achieves good result.
Keywords supervisory & control system, module design, embedded system
目录
摘要 I
ABSTRACT II
引言 1
1 绪论 2
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