摘要
本文采用智能温度传感器DS18B20,设计了一种应用于化工热网的温度监测系统。文中对DS18B20与单片机的接口进行了设计,该接口电路增强了单片机对传感器的驱动能力,提高了传感器信号传输的可靠性;然后设计了单片机与数据总线的接口及通信协议,通过此协议可以实现工控机与单片机之间的可靠通讯。实际运行表明,该系统抗干扰能力强,信号传输距离远,较好的满足了监测要求。
This paper presents the application of the intelligent temperature sensor DS 18B20 in a temperature monitoring system used in petrochemical heating network. The driver circuits increase the reliability of signal transmission. The interface also discussed. are used to enhance the sensor-driven ability of SCM and and communication protocol between SCM and data bus is
出处
《自动化技术与应用》
2008年第10期118-121,共4页
Techniques of Automation and Applications
关键词
热网
监测系统
传感器
单总线
heating network
monitoring system
transducer
1-wire
