The design scheme of intelligent nodes based on embedded micro-processor LPC2294 and real-time operation system μCOS -Ⅱ for storage tank farm measure-control system were expatiated. Overall design of the system and the hardware design of intelligent nodes were presented , and the working steps of intelligent nodes and CAN bus communication of the system were discussed.The system' s software hased on μCOS - Ⅱ realization was introduced. This system was used in some storage tank farm measure-control locale. Practice proves that intelligent nodes, which are with steady performance, high reliability, good real-time,efficient and security performance , convenience scalability , reliability and extensive application value ,can handle the problem in the present storage tank farm measure-control system based on serial communication, and meet the need of oil warehouse information construction.%文中提出了一种基于嵌入式微处理器LPC2294及实时操作系统μCOS-Ⅱ的储油罐区测控系统智能节点的设计方案.给出了储油罐区测控系统的总体结构和智能节点硬件设计,论述了智能节点的工作流程,详细阐述了基于μCOS-Ⅱ操作系统的CAN总线通信,最后给出了智能节点在μCOS-Ⅱ操作系统下的软件实现.本系统已应用于某储油罐区测控现场.实践证明该智能节点性能稳定、可靠性高、实时性好、扩展方便,有效解决了目前储油罐区测控系统基于串行通信存在的不足,具有广泛的应用价值.
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