自主可控DCS分散处理单元软看门狗的设计  

Software Watch Dog Design for DPU in DCS

作　　者：王鹏[1,2] 田海波 吴科 董胜刚 杨春瑜 Wang Peng;Tian Haibo;Wu Ke;Dong Shenggang;Yang Chunyu(Guo Dian Nanjing Automation Co.,Ltd.,Nanjing,210032,China;Nanjing SAC Valmet Automation Co.,Ltd.,Nanjing,210032,China)

机构地区：[1]国电南京自动化股份有限公司,南京210032 [2]南京国电南自维美德自动化有限公司,南京210032

出　　处：《仪器仪表用户》2023年第4期7-11,共5页Instrumentation

摘　　要：介绍了自主可控DCS中,DPU的软硬件结构,详述了基于三重看门狗机制在不同任务、不同部件、不同单元,对DPU的关键任务、软硬件运行状态,及冗余DPU之间运行状态进行了监视设计,保证DPU在运行全过程中,无论是启动阶段还是正常运行阶段的系统状态、错误和异常均做到实时感知,并通过重启复位和冗余接管保证自主可控DCS系统运行的连续性和稳定性。This paper introduces the software and hardware structure of DPU in independent and controllable DCS,and details the design of monitoring the key tasks of DPU,software and hardware status and redundant DPU in different tasks,different components,and different units based on the triple watchdog mechanism,so as to ensure that the system status,errors and exceptions of the DPU are perceived in real time during the whole process of operation,whether it is the startup stage or the normal operation stage.And through restart,reset and redundant takeover to ensure the continuity and stability of the operation of the independent controllable DCS system.

关 键 词：自主可控 分散控制系统 分散处理单元 看门狗 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]