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铁路通信信号工程技术 ›› 2022, Vol. 19 ›› Issue (8): 19-23.DOI: 10.3969/j.issn.1673-4440.2022.08.004

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基于CAN-FD的全电子通信单元设计

孟雅婷，梁玉琦   

  1. 兰州交通大学光电技术与智能控制教育部重点实验室，兰州 730070
  • 收稿日期:2021-08-31 修回日期:2022-05-26 出版日期:2022-08-25 发布日期:2022-08-25
  • 通讯作者: 孟雅婷（1995—），女，硕士，主要研究方向：铁路信号，邮箱：myt19950817@163.com。

Design of Full Electronic Communication Unit Based on CAN-FD

Meng Yating,  Liang Yuqi#br#

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  1. Key Laboratory of Opt-electonic Technology and Intelligent Control Ministry of Education, Lanzhou Jiaotong University,
     Lanzhou    730070, China
  • Received:2021-08-31 Revised:2022-05-26 Online:2022-08-25 Published:2022-08-25

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摘要： 基于CAN-FD总线设计出一种集控制、监督于一体的新的电子通信单元结构。在该结构中，由两路MCU实现“二取二”安全逻辑，第三路MCU与上述两路MCU连接，实现“二取二”比较以及与联锁机通信。第三路MCU与两路CAN-FD总线接口，两路CAN-FD总线以冗余方式与联锁机通信。这种结构在保证系统安全性的前提下，可一定程度上增强系统可靠性。

关键词: 全电子执行单元, CAN-FD, 二取二

Abstract: This paper introduces a new structure of electronic communication unit based on CAN-FD, which integrates control and supervision. In this structure, the "2 out of 2" safety logic is realized by two MCUs, and the third MCU is connected with the above two MCUs to realize the "2 out of 2" comparison and communication with the interlocking computer. The third MCU interfaces with two CAN-FD buses, which communicate with the interlocking computer in a redundant manner. This structure enhances the reliability of the system to some extent while ensuring the safety of the system.

Key words: full electronic execution unit, CAN-FD, 2 out of 2

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