This paper, taking the auto leveling system of modern asphalt paver as an example, describes the system monitoring and fault diagnosing function.
以沥青混合料摊铺机自动调平系统为例，介绍了系统状态监测与故障自诊断功能。
The function that the system realizes mainly includes: knowledge base maintenance and modification, diagnosis database importing and scanning, equipment fault diagnosing function, printing report.
专家系统实现的主要功能包括：知识库管理、事实数据录入和查询、设备的故障诊断和报表打印。
Fault diagnosing is the main function of network management system of transmission network, and also difficult function of NMS.
故障诊断是传送网网管系统的重要功能，也是网管建设中的难点问题。
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