基于DSPN的5G工业控制系统业务可用性分析  

DSPN-based application availability analysis for 5G industrial control systems

作　　者：杨启航 易志为 黄宁[1,2] YANG Qihang;YI Zhiwei;HUANG Ning(School of Reliability and Systems Engineering,Beihang University,Beijing 100191,China;Yunnan Innovation Institute of Beihang University,Kunming 650233,China)

机构地区：[1]北京航空航天大学可靠性与系统工程学院,北京100191 [2]北京航空航天大学云南创新研究院,云南昆明650233

出　　处：《系统工程与电子技术》2023年第8期2634-2642,共9页Systems Engineering and Electronics

基　　金：国家自然科学基金(61872018)资助课题。

摘　　要：5G工业控制系统规模化应用的关键是保障其高可用性。若通过试验评估,其成本高昂且困难诸多。而已有的可用性建模方法很少考虑到5G对可用性的影响。对此,以一个实际的5G转钢系统为例,采用确定性随机Petri网(deterministic stochastic Petri net,DSPN)从业务流程的角度对5G技术改造后的工控系统的动态故障和维修过程进行形式化建模,评估不同的失效模式对系统业务可用性的影响。在案例中分析了5G工业控制系统中不同参数对系统业务可用性造成的影响,发现无线链路平均故障间隔时间(mean time between failures,MTBF)对系统业务可用性影响最大。实验结果表明,所提方法可用于评估5G工业控制系统的业务可用性,为系统设计人员提供参考。The key to the large-scale application of 5G industrial control systems is to ensure its high availability.However,through experimental evaluation,the cost is high and there are many difficulties.Existing availability modeling methods rarely consider the impact of 5G on availability.Taking an actual 5G rotating steel system as an example,a deterministic stochastic Petri net(DSPN)is used to formalize the dynamic faults and maintenance process of the industrial control system after 5G technology transformation from a business process perspective,and to evaluate the impact of different failure models on the system’s application availability.In the case study,the impact of different parameters on system application availability in the 5G industrial control system is analyzed,and it is found that the mean time between failures(MTBF)of wireless links has the greatest impact on system application availability.The experiment results indicate that the proposed method can be used to evaluate the application availability of 5G industrial control systems,providing reference for system designers.

关 键 词：业务可用性 5G 转钢业务 确定性随机Petri网 

分 类 号：TN081[电子电信—物理电子学]