仓库温湿度的监测系统.1.doc

摘要 粮食的储存需要合适的温度和湿度，若管理不当，粮食受潮发霉或生虫，将会造成大量的粮食浪费。用微机技术对粮仓进行检控，可以方便地构造自己所需要的数据采集系统，在任何时候都可以把粮仓现场的信息实时地传到控制室，管理人员不进入现场就可以按照所需的温度和湿度要求对粮仓内的温湿度情况进行控制，提高了生产效率，增强了粮仓内存储的安全，获得了粮仓的实时管理，实现了自动化、智能化。国内外的温湿度测控系统仍然不断地在改进，系统结构已经普遍采用网络连接的现场总线技术(FCS)。有些需要的场合，则连接到INTERNET 上，一方面，实现远程控制、远程诊断，另一方面，构成系统整体的测控技术和管理。无论是硬件和软件，国内外已普遍采用相应的标准模块集成，并且早已实现组态。查看国外中小企业政策比较论文。 Abstract Food storage of the proper temperature and humidity, if properly managed, grain moisture mold or vermin, will cause a lot of food waste. Using computer technology silos prosecution, can easily construct their own data acquisition system required, at any time the barn on-site control rooms spread real-time information, managers can not enter the scene and according to the required temperature humidity require temperature and humidity inside the silo to control the situation and improve the production efficiency and enhance the granary to store the security, access to the granary of the real-time management of automated and intelligent. Temperature and humidity control system at home and abroad are still continually improve the system structure of the network connection has been widely used field bus technology (FCS). Some need of the occasion, the connected to the INTERNET, on the one hand, remote control and remote diagnostics, on the other hand, constitute the overall system of monitoring and control technologies and management. Both hardware and software, at home and abroad has been widely used standards for the corresponding module integration, and long to achieve configuration. See more foreign SME policy paper.  目 录 第一章 绪论 - 1 - 1. 1 选题背景 - 1 - 1.2 设计过程及工艺要求 - 1 - 第二章 方案的比较和论证 - 2 - 2. 1温度传感器的选择 - 2 - 2. 2 湿度传感器的选择 - 3 - 第三章 系统总体设计 - 4 - 3．1 信号采集 - 5 - 3．1．1 温度传感器 - 5 - 3. 1. 2 湿度传感器 - 9 - 3．1．3 多路开关 - 11 - 3．2 信号分析与处理 - 12 - 3．2．1 A/D转换 - 12 - 3. 2. 2单片机8031 - 15 - 3. 2. 2. 1 8031的片内结构 - 16 - 3. 2. 2. 2 8031的引脚图 - 17 - 3. 2. 2. 3 8031程序存储器 - 18 - 3. 2. 2. 4 8031数据存储器 - 19 - 3. 2. 2. 5 特殊功能寄存