基于Web远程温湿度监测系统设计 (2).doc

.页眉. .页脚. 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 missioning environment; Then, detailed introduces system design scheme and realization, and introduces emphatically the design puter parts, through the plete remote human-machine interface, the more highly effective quick interactive environment factors plete assurance. System monitoring parameters including the scene multipoint control temperature and humidity value set threshold microcontroller parison with determination value and buzzer alarm and trigger relay driver corresponding electric control, and realizing scene temperature and humidity control. Meanwhile PC through munication and lower puter munication, will lower place machine detected on the data real-time display in the upper and the corresponding control. The background database by will lower puter acquisition data input file, and database support PC and WEB calls. Keywords: Temperature and humidity collecting; STC microcontroller; puter; Remote control; Database; WEB access 1 绪论 基于 Web 的远程温湿度监测系统概述 基于 Web . .页脚. 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。现场检测元件现场检测元件现场检测元件单片机现场计算机数据库上位机 Web设计重点(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机的通信。(3) 继电控制模块此模块是控