基于DS18B20的多点温度巡检系统的研究

以应用广泛的单总线数字温度传感器DS18B20为例,介绍了DS18B20的结构、性能特点以及工作原理,给出了用DS18B20和AT89C2051单片机构成的多点温度巡检系统的硬件结构及软件设计。该系统设计简单、经济实用、可靠性高、抗干扰能力强、扩展方便,在仓库、粮库、智能化建筑等需要多点温度检测中具有广阔的应用前景。

Taking the 1 -wire digital temperature sensor DS18B20 as an example, this paper introduces the structure, characteristic and working principle of DS18B20, and describes the design of hardware structure and soft design for multipoint temperature patrol measurement system by DS18B20 and AT89C2051. This system has the advantage of simple design, utility , economy, refraining from interfering and extending interface easily, and has the feasibility and potentiality for multipoint temperature measurement in warehouse, factory and intelligent building, etc.