A Ring Topology of Double Circuit with Multiple Nodes Redundant Bus Design and Communication Strategy Research

摘要

The differential buses such as RS485 and CAN bus play an important role in industrial control field. In order to make the bus work properly in an extreme environment, this paper proposes a kind of ring topology of bus, by using multiple nodes and redundant method to enhance the reliability of communication of bus. On the other hand, by optimizing the strategy of communication, the efficiency of communication is improved remarkably. And using K/N(G) vote system model to demonstrate the reliability of some methods by calculation. Finally results validate that this new type of ring topology of double circuit with multiple nodes bus possesses good performance in reliability.