温湿度远程监控系统.doc

基于Web的远程温湿度监测系统的设计 摘要：首先本论文针对基于WEB远程温湿度采集及监测系统的设计加以研究和介绍，并讨论系统软硬件的选择及具体开发调试环境；然后，详细介绍了系统设计方案及其实现，并着重介绍了上位机部分的设计，通过界面的形式完成远程人机互动，更高效快捷的完成对复杂环境因素的把握。 系统监测参数包括现场多点温湿度值，主控单片机通过将设定阈值与测定值进行比较进而驱动蜂鸣器报警同时触发继电器进行相应电气控制，实现现场温湿度调控。同时上位机通过串行通信与下位机进行数据通信，将下位机检测到的数据在上位机上进行实时显示和相应控制。后台运行的数据库通过将下位机采集数据进行录入存档，同时数据库支持上位机和WEB调用。 关键词：温湿度采集；stc单片机；上位机；远程控制;数据库；WEB访问 The design of the system which Based on Web remote temperature and humidity monitoring Abstract: This paper firstly based on WEB remote temperature and humidity acquisition and monitoring system design to research and introduce, and discuss the selection and specific system hardware and software development of commissioning environment; Then, detailed introduces system design scheme and realization, and introduces emphatically the design of computer parts, through the form complete remote human-machine interface, the more highly effective quick interactive environment factors of complex complete assurance. System monitoring parameters including the scene multipoint control temperature and humidity value set threshold microcontroller through comparison with determination value and buzzer alarm and trigger relay driver corresponding electric control, and realizing scene temperature and humidity control. Meanwhile PC through serial communication and lower level computer data communication, will lower place machine detected on the data real-time display in the upper and the corresponding control. The background database by will lower level computer acquisition data input file, and database support PC and WEB calls. Keywords: Temperature and humidity collecting; STC microcontroller; Principal computer; Remote control; Database; WEB access 1 绪论 1.1 基于Web的远程温湿度监测系统概述 1.1.1基于Web的远程温湿度监测系统组成 本系统主要由主控制器、串行通信模块、继电控制模块、显示模块、上位机控制模块、WEB界面等六部分组成。其基本框架见图1。 (1) 主控制器模块 主控制器模块是整个下位机系统的核心。主要完成对系统中各种测定信号的输入、分析及输出控制，也是实现数据交换、软硬件接口的中心控制模块。本系统中以单片机为控制核心。 (2) 串行通信模块 这是系统中又一重要模块。其主要功能是实现对数据进行上位机和下位机之间的交换，是实现远程控制的关键。系统中串行通信模块通过MAX232芯片进行电平转换实现上位机与下位