基于单片机的恒温箱系统设计.docVIP

基于单片机的恒温箱系统设计 作者姓名：xiaomin 专业名称：电气工程及其自动化 指导教师：linli 讲师 摘要 随着智能控制技术的不断发展，在现代工农业生产以及科研实验的许多场合，需要及时准确地获取温度信息，并完成对温度的预期控制。单片机在检测和控制系统中得到广泛的应用，温度则是系统需要测量、控制和保持的一个量。因此，对温度系统的设计与研究一直备受广大科研工作者的重视。 本设计的温度自动控制系统，采用Intel公司推出的MCS-51系列单片机80C51为控制核心，设计具有温度设定灵活、数字显示及语音报警等功能的恒温箱控制器，经改造可用于其它量的控制。 文章从硬件和软件两方面介绍了80C51单片机温度控制系统的设计，对硬件原理图和程序图作了简洁的描述。此次设计的温度控制系统主要是由中央控制器、温度检测器、显示器等模块组成。温度检测部分采用DS18B20温度传感器，用LED数码管做显示器。温度传感器DS18B20采集温度信号送给单片机，单片机对信号进行相应处理，并把温度数据送LED显示，从而实现对温度控制的目的。 关键词：恒温箱 80C51 温度控制 Abstract With the continuous development of intelligent control technology, it is necessary to know temperature information correctly and immediately in modern industry, agriculture, research and experiment, and accomplish control to the temperature. Thus MCU get wide application in measurement and control system. Temperature is a number which needs system to detect, control and keep. Therefore many researchers always attach much importance to the design and research of temperature system. Taking a strong function 8 bit MCS-80C51 which is introduced by INTEL company for core, temperature-automatic control system aims to design a temperature controller for grain situation witch has those functions: flexible temperature set, figure display, voice alert, etc. After modified, it can be used to control other numbers . The paper gives an introduction about the design of MCU-80C51 temperature control system in software and hardware. The paper also briefly describes the hardware schematic graphic and program chart. The temperature control system of this design is mainly composed by central controller, temperature detector, display, etc. in the temperature detecting part, it adopts temperature sensor DS18B20, and displays with LED digital tube. The temperature sensor DS18B20 capture temperature signal and send to MCU. Then MCU processes these signals and transmits temperature data to LED displaying. Thereby it realizes the purpose to control temperature. Keywords: Incubator, 80C51, Temperat