信号设备是铁路运输生产中的行车控制设备,一旦发生故障将直接影响运输安全和运输效率。当信号设备发生故障后,电务维修人员到现场查找故障时,需要携带和查阅相关图纸。传统纸质图纸在实际使用中存在一系列不方便的问题:①查找费时,要从目录中找出图纸在第几册,所在的图号是多 Signal equipment is a traffic control equipment in the production of railway transportation. Once a fault occurs, it will directly affect the transportation safety and transportation efficiency. When the signal equipment fails, the maintenance personnel to the scene to find fault, you need to carry and access the relevant drawings. Traditional paper drawings in the actual use of a series of inconvenient problems: ① find time-consuming, from the directory to find out the drawings in the first few, where the figure number is more