毕业论文：基于单片机的智能水温控制系统研究.doc

摘 要 本设计以89c52单片机为核心，采用了温度传感器DS18B20,可控硅BT138-600E及PID算法对温度进行控制。该水温控制系统是一个典型的检测、控制型应用系统，它要求系统完成从水温检测、信号处理、输入、运算到输出控制电炉加热功率以实现水温控制的全过程。本设计实现了水温的智能化控制以及提供完善的人机交互界面及多机通讯接口，系统由前向通道模块（即温度采样模块）、后向控制模块、系统主模块及键盘显示摸块等四大模块组成。本系统的特点在于采用PC机及普通键盘实现了多机通信。 该水温控制系统是一个典型的检测、控制型应用系统，它要求系统完成从水温检测、信号处理、输入、运算到输出控制电炉加热功率以实现水温控制的全过程，并且，控制分为手动和声控两种途径。因此，应以单片微型计算机为核心组成一个专用计算机应用系统，以满足检测、控制应用类型的功能要求。另外，单片机的使用也为实现水温的智能化控制以及提供完善的人机交互界面及多机通讯接口提供了可能，而这些功能在常规数字逻辑道路中往往是难以实现或无法实现的。所以，本例采用以单片机为核心的直接数字控制系统。 关键词：单片机；温度传感器；可控硅；PID算法。 作者： 指导老师： Abstract This design in which 89c52 single chip computer as the core, the temperature sensor DS18B20 sampling chip, silicon controlled BT138-600Eand PID algorithm for temperature control. The water temperature control system is a typical inspection, control type application system, it requires system completion from water temperature detection and signal processing, input, computing to output control of electric heating power in order to realize the whole process of temperature control. This design realize the intellectualized control temperature and providing perfect man-machine interface and multi-motor communication interface system to channel module by former (i.e. temperature sampling module), to control module, system after the main module and keyboard display touch block and so on four modules. This system features of PC and normal keyboard realized the multicomputer communication. The water temperature control system is a typical inspection, control type application system, it requires system completion from water temperature detection and signal processing, input, computing to output control of electric heating power in order to realize the whole process of temperature control, and control divided into manual and sonic two kind of way. Therefore, should be with single chip microcomputer as the core component a special computer application sy