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中文摘要：
移动装备底层诊断网络是移动装备远程故障诊断系统的关键和基础部分。对移动装备底层诊断网络的任务要求进行了描述,在此基础上,基于嵌入式技术和现场总线技术对底层诊断网络进行构建。采用双CAN总线为通信网络,确保系统的可扩展性和通信可靠性,设计了典型的通信报文格式。设计了底层诊断网络在线诊断数据流,对典型在线工作模式进行了描述。底层诊断网络的设计实现,为进一步的功能扩展和相关研究提供了一个硬件平台。
英文摘要：
The bottom diagnosis network of mobile equipment is the key and basic part of long-range fault diagnosis system. The task requirement of bottom diagnosis network for mobile equipment was introduced. On the basis of this, the bottom diagnosis network was constructed by means of embedded technology and field bus technology. The bi-CAN bus was taken as communication network to ensure expandability of the system and reliability of the communication. The typical format of communication message was introduced. The on-line fault diagnosis data flow of bottom diagnosis network was designed, and the typical operation mode was described. Design and realization of bottom diagnosis network can provide a solid hardware platform for the function expansion and relevant research of the system.
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