Enhancing Resilience of Industrial Control Systems to Cyber Attacks Using Hybrid Processes

Cyber-Physical Systems (CPSs) are becoming more and more connected, with more physical devices getting online, such as smart sensors and webcams. However, higher connectivity increases the vulnerability of physical assets as they are now susceptible to cyber-attacks. Some cyber-attacks could cause physical system faults through the networks. Possessing both continuous and discrete features, a CPS is often modeled as a hybrid system. In this project, we will develop new methods based on hybrid observers for fault detection, isolation and mitigation that can be applied to hybrid systems. The coupling between the continuous dynamics and discrete behaviors of hybrid processes will help detect and isolate a wider range of faults.

Researcher: Zheng Wang