单片机实现温度巡回检测系统.docVIP

摘要为保证仓库日常工作的顺利进行，首要问题是加强仓库内温度与湿度的监测工作。但传统的方法是用湿度表、毛发湿度表、双金属式测量计和湿度试纸等测试器材，通过人工进行检测，对不符合温度和湿度要求的库房进行通风、去湿和降温等工作。这种人工测试方法费时费力、效率低，且测试的温度及湿度误差大，随机性大。因此我们需要一种造价低廉、使用方便且测量准确的温湿度测量仪。AT89C51单片机为控制核心，基于DS18B20及HS1100传感器的温度和湿度自动检测系统。这个系统能够对库区内每个库房中的温度及湿度的变化情况进行实时自动检测，一旦出现异常现象便于及时处理，有效地提高了事故的预见性和工作效率。 单片机应用系统主要由单片机最小系统单元、单元、温度显示单元、温度控制等五个单元组成。 关键词 AT89C51Abstract For guaranteeing the warehouse daily smoothly progress, the major problem is to enhances the monitoring of the temperature and the humidity inside the warehouse . The traditional method is to use testing devices of Hygrometer, Hair Hygrometer, Double Metals measuring and Humidity Paper etc. Passing the labour power proceed examination, to match with the temperature and humidity requesting to proceed ventilating, reducing the Damp and? the temperature etc. This kind of artificial testing method Wasted a lot of time and the efficiency is very low,and the error is big. Therefore we need a kind of device that is the price cheaply, usage Conveniently and accurated measure the temperature and the humidity . The design of this system is consist of to the machine of AT89C51MCU that as to control core, according to DS18B20 and HS1100 measure automatically the temperature and the humidity.This system can be getting to the automatic examination for the variety circumstance between the temperature and the humidity of every areas inside the warehouse, once appearing the abnormality phenomenon is easy to handle,therefor the system increases effectively the prediction of the accidents and the work efficiency. SCM application system is mainly from the smallest single-chip system unit, temperature sensor unit, humidity display units,temperature display units, temperature and humidity control of, alarm units five modules. Key words　AT89C51MCU　temperature sensor　humidity sensor　display 目　　录 摘要 I Abstract II 第1章 绪论 1 1.1 课题背景 1 1.2 目的及意义 1 1.3 系统要求 2 1.3.1 基本功能 2 1.3.2 主要技术参数 2 1.4 系统概述 2 第2章 方案设计 4 2.1 温度传感器的选择 4 2.2 湿度传感器的选择 5 2.3 主