Objectives At present, the power management systems of ships require highly reliable Ethernet, and Ethernet communication cannot be interrupted when the system encounters a fault.
Methods This paper introduces the working principle of the dual-redundant Ethernet system, and the processor ARM and the Ethernet control chip W5200 are used for the dual redundant Ethernet communication system.
Results When the network fails or the line is damaged, the dual redundant Ethernet communication system can automatically reconnect so as to ensure that the communication system is healthy, safe and continuous.
Conclusions The redundant communication system is verified by ship prototype with high application and promotion value.