Network Isolation in Electrical Vehicle Charging Station

Network isolation system (NIS) can help electrical vehicle charging station (EVCS) to exchange messages with different systems (such as central monitor system, battery package and electrical vehicle (EV)) in a secure and efficient way. This paper focuses on the structure of EVCS, and then analyzes the boundaries of the trusted and the untrusted areas. On the top boundary, EVCS can communicate with the central monitor system. On bottom boundary, EVCS can communicate with EVs or battery packages. Based on this demarcation, this paper proposes the NIS architecture for EVCS. The new architecture can limit the top/bottom boundary of EVCS to enhance the securities. Finally, the proposed architecture is analyzed, which shows the feasibility.

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