Background
In the past ten years, the rapid development of China's economy, the increase in railway mileage and the increase in operating speed have been increasingly important requirements for the maintenance of railway infrastructure. Railway maintenance is a huge and complicated project. The maintainers need to share the latest and most comprehensive equipment test data, make correct judgments quickly based on the data, and respond to faults in time to ensure the normal operation of the railway. In order to eliminate various hidden dangers, a Railway Administration is seeking a way to reduce costs, improve efficiency and inspection management.