基于单片机和VB的多点温度监控系统方案设计书.docVIP

基于单片机和VB的多点温度监控系统设计（）-上位机设计 院 系 专 业 班 级 学 号 姓 名 指导教师 负责教师 沈阳航空工业学院2009年6月摘要 本文针对多点温度控系统各点温度通过VB建立一个温度信息管理系统。详细阐述了系统的设计方法及功能。温度测控电路进行数据通信，温度信息的上传和温度设定值的下传。采用Access设计数据库，记录用户信息和温度信息。用VB连接数据库，完成温度信息的查询、显示、趋势图、报表生成等功能。达到了实时记录温度信息，定时传送温度设定值的技术指标。该多点监控系统拥有良好的人机界面，通用性好，操作简单、方便实现温度的集中监控和管理具有较广泛的应用前景。关键词：；Abstract Temperature is a fundamental physical quantity, it is one of the most general and important process parameters in industrial and agricultural production.Accurate real-time temperature monitoring is an important guarantee for the quality of products. With the development of modern science and technology, electronic computer has been used in temperature monitoring frequently. Therefore, in this paper an information management system of temperature is established for multi-point temperature monitoring system by VB. The design methods and functions of the system is illuminated in detail. The system has not only achieved real-time data communication with temperature monitoring and control circuits but also accomplished the transfer of temperature information and temperature settings. An access database is used to record users’ information and temperature information. Using VB to connect to the database the system has many functions such as the query, display, trend, report generation and so on. The technical target of the record, the transmission of real-time temperature information and the temperature settings is also achieved. The multi-point temperature monitoring system has good human-computer interface, good common, simple and convenient operation. It is easy to implement centralized monitoring and management of the temperature. The system has a very extensive application prospect. Keywords: VB; database; temperature; monitoring 目 录 第1章 绪论 1 1.1 课题背景 1 1.2 多点温度监控系统发展现状 1 1.3 课题研究内容及技术指标 4 1.4 本文安排 5 第2章 多点温度监控系统总体方案的设计 6 2.1 系统描述 6 2.2 总体方案设计 6 2.3 课题主要技术指标 7 第3章 VB与单片机通信的建立 8 3.1 串行通信及RS—232总线 8 3.1.1 串行通信 8 3.1.2 RS-232总线标准 10 3.2 Vi