The Society of Convergence Knowledge Transactions ISSN:2287-8920(Print) 융복합지식학회논문지

Major countries around the world, including the U.S. and Europe, recognize cyber-physical systems as key technologies of the Fourth Industrial Revolution and are paying attention to related technologies. cyber-physical systems can be used in various industries such as manufacturing, energy, and aerospace, and are technologies that improve national competitiveness and quality of life. However, cyber-physical systems, like existing systems, are also difficult to fully prepare for and prevent damage caused by unexpected system defects or malfunctions. A cyber-physical system is a complex system with sensors, actuators, and controls connected over a network. These various devices constitute subsystems in a distributed environment, and each subsystem must be able to share information organically. In particular, the timing problem should be fully considered to meet the user’s requirements for real-time responses. In real-time applications, timing-related failures are critical factors that lead to negative consequences for the system. In this paper, we present timing requirements to actively identify and prepare for timing-related system failures and problems from the perspective of safety and reliability of cyber-physical systems.