基于单片机的仓储温度测控系统的设计毕业设计.doc

PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT 毕业设计说明书 基于单片机的仓储温度测控系统的设计 摘 要 PAGE \* MERGEFORMAT IV PAGE \* MERGEFORMAT IV 摘 要 温度监测与控制是个生产工艺流程极为重要的环节，自古以来就受到人们的关注，与人们的生活息息相关。近年来，随着社会的发展，人们对温度监控的精度以及范围等有了更高层次的要求，无论是在工农业生产或科学研究方面，对温度监控都尤为重要。因此对温度监控的研究设计十分必要。 本课题介绍了以STC89C52单片机为控制核心，DS18B20作为传感器的集采集、处理、显示、自动控制为一体的仓储温度测控系统。整个系统中，以PC作为上位机监控模块，STC89C52单片机作为下位机控制模块，上位机与下位机数据传输与交流以串口通信的方式进行。本文采用智能温度传感器DS18B20进行温度的采集与转换，其具有测温范围宽，精度高等优点，同时具有单总线接口，从而使得电路设计更加简洁。STC89C52单片机具有运算速度快，处理能力强等特点，使其在温度测控系统中成为一个极为重要的组成部分，伴随着电子技术的发展，利用单片机进行温度测控，将成为发展趋势。该系统同时设置温度显示模块与报警装置，可人为地控制温度上、下限，可自动调节温度，使用户可以更好的对温度进行控制。 关键词：单片机、DS18B20、温度监控 Abstract Abstract Temperature monitoring and control is a very important part of the production process, since ancient times by people concerned with peoples lives. In recent years, with the development of society, people on the accuracy of temperature monitoring and scope have higher level requirements, both in industrial and agricultural production, or scientific research, are particularly important for temperature monitoring. So the temperature monitoring study design is necessary. This topic introduces the STC89C52 microcontroller core, DS18B20 sensor set as the collection, processing, display, automatic control as one of the storage temperature monitoring system. Throughout the system, the PC as a PC monitor module, STC89C52 microcontroller as the next-bit machine control module, the PC and the next crew to serial data transmission and exchange of communication manner. In this paper, intelligent sensor DS18B20 temperature acquisition and conversion, which has a wide temperature range, high precision, but also has a single bus interface, which makes circuit design more concise. STC89C52 microcontroller with a computing speed, processing power and other characteristics, so that in the temperature measurement and control systems to become a very important part, along with the development of electronic technology, the use of single-chip temp