Authors: Devender S Kaushik, Bibha Patil, Satyendra Tiwari
Abstract: Industrial automation relies heavily on embedded systems to manage processes, monitor equipment, and maintain high productivity levels. However, these systems are susceptible to faults due to hardware failures, software bugs, environmental disturbances, and communication errors. Fault-tolerant embedded systems (FTES) are designed to continue operating correctly even in the presence of such faults, thereby enhancing reliability, safety, and efficiency. This paper reviews the design principles, architectures, fault detection and recovery techniques, and applications of fault-tolerant embedded systems in industrial automation. Recent advancements, including redundancy methods, formal verification, and AI-assisted fault management, are discussed. Case studies from manufacturing, robotics, and process control demonstrate practical implementations. The paper concludes by highlighting emerging trends, challenges, and future research directions in this field.
Keywords Fault-tolerance, Embedded Systems, Industrial Automation, Reliability, Redundancy, RealTime Systems, Safety-Critical Systems
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