介绍了LonWorks 现场总线和单线数字温度传感器DS18B20 的特点及原理,利用CY53120 和AT89S52 构成了基于主机的Neuron 节点,设计了多点温度测控系统,给出了其硬件及软件实现。 关键词:LonWorks;现场总线;楼宇自动化;Neuron 芯片;DS18B20 Abstract: The principle and features of LonWorks fieldbus and single-wire digital temperature sensor DS18B20 are introduced. Neuron nodes of host based are structured by using CY53120 和AT89S52 ,And a multi-point temperature measure & control system is designed .The implementation of hardware and software is given . Key words: LonWorks;fieldbus;building automation;Neuron chip;DS18B20