基于AVR单片机的温度控制系统.docxVIP

基于AVR单片机的温度控制系统 PAGE \* MERGEFORMAT II摘 要 ? 随着现代工业技术的发展，工业自动化技术越来越高，各种信息的感知采集、转换传输、处理控制已经成为自动控制领域的不可缺少的组成部分。而温度是工业生产中常见的工艺参数之一，任何物理变化和化学反应过程都与温度密切相关，因此温度控制是生产自动化的重要任务。单片机具有集成度高，功能强，结构简单，应用灵活，可靠性高等特点，在工业控制，机电一体化，通信终端，智能仪器仪表等诸多领域中得到了广泛应用。本设计基于高性能的MEGA16单片机，结合嵌入式软件控制的特点，采用C语言编写程序实现温度的采集、显示、控制和报警等功能。主控制器采用AVR单片机ATmega16，温度传感器采用DS18B20，温度控制系统的对象为室温，通过温度传感器DS18B20连续对温度信息进行采集，转换为数字信号后送至主机MEGA16，由预设的算法进行运算处理后，输出信号驱动执行机构进行相应调节（此处通过控制散热风扇的转速实现），从而使温度维持在设定值附近，同时温度信号送至数码管实习显示出来。关键词：温度控制，AVR单片机，MEGA16芯片，DS18B20芯片 AbstractWith the development of modern industrial technology, industrial automation technology more and more, the perception of all kinds of information collection, conversion, transmission, process control automation in the field has become an indispensable part.MCU ,with characteristics of high integration, function, simple structure, flexible application, high reliability, has been widely used in many areas such as the industrial control, mechatronics, communications terminals, intelligent instruments and meters,etc.This design is based on high-performance MEGA16 microcontroller, combined with embedded software to control, using C language programming to achieve the function of temperature collection, display, control and alarm . Host controller using AVR microcontroller ATmega16, temperature sensor DS18B20, temperature control system is targeted at room temperature, the temperature sensor DS18B20 through continuous gathering information on the temperature, the conversion to digital signal sent to the host MEGA16, from the pre-operation processing algorithm , the output signal actuator to adjust accordingly (in this case by controlling the valve opening to achieve), so temperature was maintained near the set value, while the temperature signal sent to the digital control practice displayed.Key Words：Temperature Control，AVR MCU(MicrocontrollerUnit)，Chip mega16，Chip DS18B20目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc263025655 摘 要 PAGEREF _Toc263025655 \h I