Subject this apply network analysis on "railway signalmaintenance management information system"(RSMMIS), go on systematic modeling UML technology mainly.
本课题主要将UML技术应用于《电务检修所管理信息系统》的系统分析、进行系统建模。
2
Collection unit has LCD function that can display collected signal for the convenience of maintenance and inspection.
采集单元具有LCD液晶显示功能，可直接显示采集信号，便于维护、检查。
3
The third step: education, whether the maintenance personnel check dress requirements, highway repair and support type signal standard car is normal.