为提高大型油罐区检测自动化水平,采用LonWorks现场总线技术设计的油罐区自动测控系统,能够实现就地显示和远程监控油罐实时状态,Host-Based结构的智能测控节点兼容多种通用的油罐测量仪表信号类型,系统兼容性强,易于扩展。所设计的系统已成功应用于某油罐区监控,介绍了该测控系统的结构和工作原理、智能测控节点硬件和软件设计与实现。 In order to improve the level of automation of large oil tank inspection area, the automatic measurement and control system for tank farm area designed by LonWorks fieldbus technology can realize the real-time status display and remote monitoring of oil tank in situ. The Host-Based intelligent monitoring and control node is compatible with many common Tank measuring instrument signal type, system compatibility, easy to expand. The designed system has been successfully applied to the monitoring of a tank farm. The structure and working principle of the monitoring and control system, the hardware and software design and implementation of the intelligent monitoring and control node are introduced.