| With people moving from rural to urban area in our country,the urban population will be more and more.Now urban traffic congestion has became a problem that the society have to face.In the urban planning,the ground traffic becomes the first solution to solve traffic congestion in the city.The major cities in our country are also stepping up the subway system planning and construction.So the domestic demand for subway vehicles will also be growing.The network control system is an important part of the subway vehicle.It plays a key role in the operation of the vehicle.Therefore,it is of great significance to study the subway network control system and improve the reliability and safety of the subway vehicle.In our country,the research of metro vehicle network control system started relatively late.Now the network control system used in metro vehicles is almost foreign product.The goal of this thesis is to research and design a metro network control system based on MVB(Multifunction Vehicle Bus).Through hardware design,system design and experimental verification,we finally reached the loading application.In order to achieve this goal,this paper firstly compares and studies four commonly used bus networks to illustrate why MVB bus network is selected.Secondly,the system architecture and functions were analyzed to determine the design basis.Third,we completed the hardware design and network system design.Finally,the subway network control system has passed by the system experiments and hardware reliability experiments.The experimental results are in line with the original design requirements.After the official loading operation,the network control system can also run normally.The hardware design and system design of the subway network control system have a good reference value for the improvement of the reliability of the subsequent subway network control system.Today the subway system is gradually popular,the subject also has a very good practical value and economic value. |
