Cost-Effective Design of Fault-Tolerant Real-Time Solutions - Cyber
Abstract
Short Work Statement The proposed research will investigate & develop: • a new periodic real-time control system (RTCS) computation model, which not only expresses efficiency and stability of the underlying physical system, but also generalizes existing periodic task models, by capturing a tolerable number of control update misses in different plant states (PS); • a new scheduling mechanism that prioritizes jobs of a set of computational tasks by accounting for not only the characteristics of each task, but also the number of consecutive prior job deadline misses. • a priority-assignment policy that lowers the system operation cost without compromising stability; • in-depth evaluation of the proposed computation model, its application and priority-assignment to demonstrate their power and utility in generalizing the existing periodic task models, but also significantly lowering the system operation cost without losing stability; and • cost-efficient ways of minimizing deadline misses as the first line of defense for mission-critical applications. Approach This proposal will attempt to investigate a new periodic real-time control system (RTCS) computation model, which not only expresses efficiency and stability of the underlying physical system, but also generalizes existing periodic task models, by capturing a tolerable number of control update misses in different plant states (PS) and develop a new scheduling mechanism which takes into account task misses. Objective The PI will develop a new RTCS model and scheduling algorithm, which takes into account missed tasks, and the effect and limit of missed task a system can tolerate, due to inertia within the system. Overall Merits and ONR Mission/Relevance The proposed research will provide scientific rigor to cyber-fault tolerant system ONR is pursuing. ONR cyber-fault-tolerant system (BFT++ efforts) takes advantage the inertia property in cyber-physical-system (CPS) and breaks the overly conservative requirement, that no deadline can be missed. This research will provide scientific foundation for BFT++ approaches. BFT++ is developed for providing cyber-attack-resiliency to Navy’s HM&E systems. The developed technologies will also be essential for enhancing cyber-attack-resiliency to many Navy’s integrated control systems infrastructures. A reliable and resilient integrated control system is essential to the success for Navy missions.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2016
- Source ID
- N000141512163
Entities
People
- Kang Geun Shin
Organizations
- Board of Regents of the University of Michigan
- Office of Naval Research
- United States Navy