Visible to the public Simulation Testing of Fault-Tolerant CPS Based on Hierarchical Adaptive Policies

TitleSimulation Testing of Fault-Tolerant CPS Based on Hierarchical Adaptive Policies
Publication TypeConference Paper
Year of Publication2018
AuthorsMa, Siyou, Yan, Yunqiang
Conference Name2018 IEEE International Conference on Software Quality, Reliability and Security Companion (QRS-C)
Date PublishedJuly 2018
ISBN Number978-1-5386-7839-8
KeywordsAdaptation models, adaptive allocation, collaborative simulation time sequence push strategy, composability, Computational modeling, Control Strategy, CPS modeling, Cyber physical system, Cyber-physical systems, Fault tolerance, fault tolerance policies, fault tolerant computing, Fault tolerant systems, Fault-Tolerant CPS, fault-tolerant CPS simulation platform, Hardware, hardware redundancy technology physical backup, hierarchical adaptive policies, hierarchical model, inter-layer message transmission mechanism, message passing, Metrics, Nickel, node activity test mechanism, physical backup, pubcrawl, Redundancy, resilience, Resiliency, resource allocation, safety-critical key infrastructures, simulation test, simulation testing, simulations, SPB-CPS simulation test efficiency, test resources

Cyber physical system (CPS) is often deployed at safety-critical key infrastructures and fields, fault tolerance policies are extensively applied in CPS systems to improve its credibility; the same physical backup of hardware redundancy (SPB) technology is frequently used for its simple and reliable implementation. To resolve challenges faced with in simulation test of SPB-CPS, this paper dynamically determines the test resources matched with the CPS scale by using the adaptive allocation policies, establishes the hierarchical models and inter-layer message transmission mechanism. Meanwhile, the collaborative simulation time sequence push strategy and the node activity test mechanism based on the sliding window are designed in this paper to improve execution efficiency of the simulation test. In order to validate effectiveness of the method proposed in this paper, we successfully built up a fault-tolerant CPS simulation platform. Experiments showed that it can improve the SPB-CPS simulation test efficiency.

Citation Keyma_simulation_2018