粮库温度与湿度监控系统的设计，毕业设计.doc

粮库温度与湿度监控系统的设计，毕业设计
题 目 粮库温度与湿度监控系统的设计 专业名称 自 动 化 指导教师 洪 镇 南 指导教师职称 教 授 班 级 081 班 学 号 20089460106 学生姓名 李 灿
2012年 6 月 6日
南华大学船山学院毕业设计
粮库温度与湿度监控系统的设计
摘要:粮仓管理中最重要的问题是监测粮堆中的温、湿度变化。国家为粮食储藏每年支付很高的费用～主要是因为监测设备成本较高～管理方式不够先进。在理论研究和实地考察实验的基础上～进行了粮食仓库温度和湿度实时在线巡回监测与控制系统的设计和研制。温度和湿度的检测与控制对防止粮食霉变有着重要的意义～讨论粮堆温度和湿度变化的主要原因以及粮食仓库中温度和湿度的允许变化范围。探讨在线测量～计算和控制粮食仓库温度和湿度的原理和方法～基本消灭了粮食霉变事故～同时也节省了大量人力和物力～减轻了粮仓管理的工作强度～提高了粮库管理效率～使粮食管理得到了安全可靠的保障。正目前,粮库中的温湿度检测,基本上是人工检测,劳动强度大,繁琐,由于检测报警不及时,造成库储粮食损失的现象时有发生,于是,设计并研制性能价格比较高的粮库温湿度自动检测系统迫在眉睫。本文介绍一种以AT89C51单片机作为控制单元～以DS18B20为温度传感器、以电容式HS1100为湿度传感器的温湿度控制系统。
关键词:温度测量;湿度测量;控制系统
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南华大学船山学院毕业设计
Grain Storage Temperature and Humidity
Monitoring System Design
Abstract:Barn management of the most important issue is monitoring the grain heap temperature and humidity changes. countries for grain storage to pay high fees each year, mainly due to high cost of monitoring equipment, management methods were not advanced enough in the theoretical study and field visits on the basis of experiments carried out a food storage temperature and humidity, real-time monitoring and control system circuit design and development. the temperature and humidity measurement and control to prevent mildew food of great significance to discuss the grain heap the main reason for the temperature and humidity changes as well as food storage temperature and humidity range allowed explore on-line measurement, calculation and control of food storage temperature and humidity, the principles and methods, and basic elimination of food mildew accident, but also save a lot of manpower and material resources, thereby reducing the intensity of granary management work to improve the efficiency of management of the granary, so that food management has been a safe and reliable protection Are present, the grain depots in the temperature and humidity testing is basically a manual inspection, labor-intensive, cumbersome, due to not timely detection and alarm, resulting in the loss of