Abstract
Medical cyber-physical system (MCPS) is usually used in hospitals to provide continuous services (e.g., glycemic monitor and alarm) for patients. In this paper, we introduce cloud computing to integrate multiple MCPSs of hospitals to construct medical cyber-physical cloud system (MCPCS). Such complex MCPCS need stability analysis to guarantee collaboration among multiple MCPSs. We treat the MCPCS as a complex network, where each MCPS is considered as a node. Then, we introduce the Lyapunov stability theory for synchronization stability analysis of MCPCS by considering multi-closed-loops. For different network types, the dynamic equations of MCPSs were improved through introducing feedback in the multi-closed-loops. For the problem that different networks cause different delays, we select three networks to solve sufficient conditions for the synchronization stability of MCPCS. Experiments are performed to confirm the efficiency of sufficient conditions and the synchronization stability of MCPCS.
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