SMART CYBER- PHYSICAL SYSTEMS MINDAUGAS VASILJEVAS

OUTLINE Smart Cyber-physical systems Smart Cyber-physical systems vs embedded systems Concept map of cyber-physical systems Structure of cyber-physical system Design process of cyber-physical systems 2

SMART CYBER-PHYSICAL SYSTEMS Cyber-physical systems are integrations of physical and computational processes. 3

CYBER-PHYSICAL SYSTEM VS. EMBEDDED SYSTEM Cyber-physical systems refer to next generation embedded systems Cyber-physical systems focus on physical and computational processes integration Embedded systems tend to be more on the computational elements 4

CYBER-PHYSICAL SYSTEMS – A CONCEPT MAP 5

CONCEPT MAP: DEFINITION PART 6

CONCEPT MAP: APPLICATION 7

CONCEPT MAP: REQUIRED CONCEPTS 8

STRUCTURE OF CYBER-PHYSICAL SYSTEM 9

DESIGN PROCESS OF CYBER-PHYSICAL SYSTEMS 10

MODELING CYBER-PHYSICAL SYSTEMS Continuous dynamics Discrete dynamics Hybrid systems 11

CONTINUOUS DYNAMICS Actor Models 12

DESCRETE DYNAMICS Finite State Machines 13

HYBRID SYSTEMS 14

DESIGNING CYBER-PHYSICAL SYSTEMS Model Based Design Process for Embedded System 15

10 STEPS MODEL BASED DESIGN PROCESS FOR CYBER-PHYSICAL SYSTEM MBD Step 1: State the Problem MBD Step 2: Model Physical Processes MBD Step 3: Characterize the Problem MBD Step 4: Derive a Control Algorithm MBD Step 5: Select Models of Computation MBD Step 6: Specify Hardware MBD Step 7: Simulate MBD Step 8: Construct MBD Step 9: Synthesize Software MBD Step 10: Verify, and Validate, and Test 16

CONCLUSION Cyber-Physical Systems (CPS) are integrations of computation, networking, and physical processes. CPS are heterogeneous and complex in nature. CPS are related to next generation embedded system. The difference between them is that CPS focus on physical and computational processes integration while embedded systems are more about computational processes. Model based design process is applied to CPS design. The key element of this process is a model. There are 3 types of models suitable to CPS: continuous models, discrete models and hybrid models. 17

REFERENCES E. A. Lee and S. A. Seshia, Introduction to Embedded Systems, A Cyber-Physical Systems Approach, ISBN , P. Asare, D. Broman, E. A. Lee, M. Torngren, S. Shyam Sunder. Cyber – Physical Systems – a Concept Map. Online Derler, P., Lee, E. A., & Vincentelli, A. S. (2012). Modeling cyber–physical systems. Proceedings of the IEEE, 100(1), Lee, E. A. (2008, May). Cyber physical systems: Design challenges. In Object Oriented Real-Time Distributed Computing (ISORC), th IEEE International Symposium on (pp ). IEEE. Jensen, J. C., Chang, D. H., & Lee, E. A. (2011, July). A model-based design methodology for cyber- physical systems. In Wireless Communications and Mobile Computing Conference (IWCMC), th International (pp ). IEEE. 18

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KLAUSIMAI AUDITORIJAI Kas yra kiberfizinės sistemos? Kuo skiriasi kiberfizinės ir įterptinės sistemos? Kokie yra tipinės kiberfizinės sistemos elementai? Kokio tipo modeliai taikomi kiberfinėse sistemose ir kokiems sistemos elementams jie taikomi? Iš kokių etapų susidaro 10 žingsnių į modelį orientuotas projektavimo procesas? 20