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在现场总线中,CAN高速环网因其诸多优势而得到广泛应用,由此带来的环网数据传输的可靠性问题也备受关注。本文针对CAN高速环网的特点提出了单环双向、双环单向两种CAN环网传输模型,可以在不同应用中保证CAN高速环网在传输介质意外断开时数据的传输,从而提高环网的可靠性。
In the field bus, CAN high-speed ring network is widely used due to its many advantages, resulting in ring network data transmission reliability issues are also of concern. According to the characteristics of CAN high-speed ring network, this paper proposes a single-loop bidirectional and double-loop one-way two CAN ring transmission model which can guarantee the transmission of CAN high-speed ring network in the accidental disconnection of transmission medium in different applications, The reliability.