Design And Implementation Of Mobile Terminal For Urban Rail Transit Equipment Inspection System

The inspection of urban rail transit equipment has traditionally been carried out by inspectors to the printed paper inspection form to the target site,and then fill in the inspection data on the form according to the actual situation of the equipment to be inspected.After the end,the inspectors will enter into the inspection management system.Through the developed equipment inspection system,the equipment inspection work was changed from the traditional hand-filled paper inspection form to filling in the electronic inspection form on the mobile application of the system.The electronic inspection form was prepared by the project manager and inspected by the inspection Download it to your phone.The inspector can return the test results to the server through the application after finishing the equipment test,and the server saves these test results so that the project manager can proceed with the next step.The development of this system not only avoids the fragility and contamination of paper documents,but also improves the inspection efficiency of inspectors.This article mainly introduces the background and key technologies of the project around the design and implementation of the mobile terminal of the urban rail transit equipment inspection system,such as Hybrid App hybrid development technology,QR code scanning technology,etc.;through on-site research and communication with inspection personnel Summarized the problems that the inspection system needs to solve the most and conducted a demand analysis.It was displayed and explained in the form of use case diagrams and use case tables;combined with software engineering ideas,the system was designed in general and server-side,including architecture design and communication Protocol design,data exchange format design,interface design,etc;the mobile terminal is designed according to the layered idea,including the interface and business logic,in order to ensure the application of offline inspection,the mobile terminal database table is designed;for the mobile terminal function module The detailed design is discussed in four aspects:process design,class design,functional timing design,and code implementation.At the end of the paper,the work is summarized and the next step is looked forward to.