列控中心CAN总线可靠性通信的研究设计

Reliable Communication of CAN Bus in TCC Equipment

列控中心作为铁路信号系统中的重要设备,在CAN总线设计过程中要保证通信可靠性传输,在对影响CAN总线可靠性传输的几个因素如元器件、电缆和温度分析的基础上,对CAN传输信号延时分析,明确元器件和高温对CAN延时的影响,为总线信号的延时提供设计依据,也为总线线缆的选择提供依据。

Train control center（TCC） is an important equipment in railway signal systems, its transmission reliability must be ensured in the process of CAN bus design. Based on the analysis of factors affecting the reliable transmission of CAN bus such as elements, cables and temperature, the paper puts forward that the factors affecting the CAN time delay are elements and high temperature, for providing reference for the design in terms of CAN time delay and the selection of CAN cables.