A survey on fault detection for networked systems under communication constraints

With the rapid advancement of information technology, the networked systems (NSs) have found extensive application across various fields. As the complexity and scale of NSs continue to increase, the fault detection plays an important role in ensuring the reliable operation of the system and has attracted the attention of scholars. In this paper, the research progress of fault detection (FD) for NSs is reviewed, especially the FD methods in communication-constrained situations. First, the research significance of FD for NSs and the current research hotspots are reviewed. Subsequently, the methods of FD subject to time delay, measurement loss, signal quantization and cyber attack are summarized. Next, for the NSs constrained by communication protocols, the corresponding FD methods are recalled. Then some research results on FD for NSs with finite-time index constraint and memory-scheduled strategy are presented. Finally, the limitations of current FD methods are summarized and the future research directions are pointed out.