智能温度控制器的设计

Design of intelligent temperature controller

温度控制器作为一种能有效控制温度的电开关设备正被广泛使用。然而随着科技的发展,传统的温度控制器暴露出测温精度低、分辨率弱、抗干扰能力弱、能耗高以及缺乏智能化等诸多不足,已经达不到有效控制温度的目的。设计一种新型的符合需求的智能温度控制器是很有必要的。文章主要介绍利用单总线数字温度传感器DS18B20的一种智能温度控制器的设计。该智能温度控制器以ATMEL公司AT89C52为控制器操作,结构简单、测温准确。本系统由DS18B20完成对环境温度信号的采集,并把采集到的信号送给单片机进行处理,完成相应的智能控制,同时将所测得的环境温度在显示电路实时显示。另外还介绍了DS18B20的特性和使用注意问题,给出了该智能温度控制器的原理设计图和关键的程序代码。

The temperature controller as a electrical switching equipment which can effectively control the temperature, is being widely used. However, with the development of science and technology, the traditional temperature controller has shown a low temperature measurement accuracy, weak resolution, weak anti-interference capability, high energy consumption and the lack of intelligent, and so many inadequacies that it has failed to control the temperature effectively. It is of practical significance to design a new intelligent temperature controller that meets the requirement. This paper describes design of a new intelligent temperature controller using digital temperature sensors DS18B20. The intelligent temperature controller is operated by AT89C52 of ATMEL corporation, whose structure is simple and temperature measurement is accurate, temperature measurement accuracy. And this system completes the collection of environmental temperature signals by DS18B20, and sends the signals collected to the SCM to process, and complete related intelligent control, meanwhile, the measured ambient temperature is displayed in real-time in the display circuit. In addition, the characteristics of DS18B20 and the use of attention problems are introduced, the principle design graph and key program code are given.