System and method based on isolated double Ethernet and double CAN communication

Abstract

The invention relates to a method and a system based on isolated double Ethernet and double CAN communication. The method comprises the following steps of respectively defining a first Ethernet communication channel, a second Ethernet communication channel, a first CAN communication channel and a second CAN communication channel; setting a working channel and a standby channel by judging whether the first Ethernet communication channel and the second Ethernet communication channel are connected normally, and analyzing whether a digital signal transmitted by Ethernet needs to be transmitted bythe first CAN communication channel or the second CAN communication channel; and setting the working channel and the standby channel by judging whether the first CAN communication channel and the second CAN communication channel are connected normally, and analyzing whether the digital signal transmitted by a CAN needs to be transmitted by the first Ethernet communication channel or the second Ethernet communication channel. Compared with the prior art, the method and the system have the advantages of being high in anti-interference capability, easy to expand, high in reliability and the like.

Description

technical field [0001] The invention belongs to the field of embedded technology, in particular to a system and method based on isolated dual Ethernet and dual CAN communication. Background technique [0002] As the national marine strategy and all-electric propulsion go hand in hand, the position of the ship's power system is becoming more and more important, so higher requirements are put forward for the stability, reliability and intelligence of the ship's power system. In order to adapt to this development trend, leading technologies such as intelligence, computerization and networking will play an increasingly important role in the network structure, stable operation, resource scheduling, energy distribution, weapon configuration, operation mode and control strategy of the ship's power system. big effect. The comprehensive ship power system developed with the idea of ​​"modularization and integration" greatly simplifies the structure of the ship's power system, provide...

AI Technical Summary

Problems solved by technology

This is due to the complexity of these multi-system functions, which will inevitably bring about serious electromagnetic compatibility problems, which will pose a threat to the normal operation of communication equipment; The interference of various random and uncertain factors, such as random and uncertain factors, will lead to an imbalance between the output power of the ship and the load power, and even severe situations such as undervoltage and overvoltage, which will cause serious damage to communication equipment; ship data acquisition equipment The working environment is complex and changeable. Due to the influence of many factors such as transmission distance and site conditions, the I2C bus, CAN bus and Ethernet transmission channels may be interrupted, resulting in reduced real-time performance and reliability of the network, and even the network cannot work normally.

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