The Design Of Train Network Manager Based On The Qt

Train network communications include data communications between vehicles and vehicles in a train and data communications between equipment and equipment in a vehicle.Process data,message data and monitoring data are three different services of the link layer.Transmission mode has two types: periodic and sporadic.Link layer services and the corresponding transmission modes provide three basic services: variables,messages and network management.The TCN adopts the concept of distribute process database to provide variable transmission services.With the improvement of living standard,people put forward higher requirements on the comfort,speed and safety of trains.The train network communication technology is one of the most important part of the train technology,as the same time,a good train network communication technology is one of the prerequisites to meet people’s requirements.Network management as one of the services provided by the train communication network provides a lot of services for staffs to test,debug,operate and maintain the train.After learning the IEC61375 international standard,the train network manager is designed by the software Qt.The manager provides a good human-computer interaction interface,so that staffs can manage the train network communication more convenient.In addition to the TNM(train network management)services defined in the protocol standard,the network manager customs document transmission,configuration file generation and editing and fault logging functions to provide a better service for the staff.Firstly,this paper describes the technical knowledge that needs to be learned before designing the train network manager.All modules’ functions of the TCN communication are introduced.The management objects,services and the message communication protocol of the train network management are analyzed.This paper gives the reason why chooses the software Qt as the development software,then,focuses on the layout management and object model features’ differences from other development softwares.Then,this paper analyzes the process of the train network communication and functions of the train network manager.The TNM services,document transmission and configuration file generation and editing play a key role in the train network manager performance.This paper mainly analyzes these three functions.At last,the train network manager is designed and developed by the software Qt to achieve the needed functional requirements.After testing and analysis,the train network manager developed in this paper achieves the desired functional requirements and works well.