The Design And Implementation Of The Terminal Software System For Subway Ticket Vending Machine

The subway has played a key role in solving the problem of urban rail transit congestion caused by the rapid development of urbanization and informatization.The MTR has adopted the Automatic Fare Collection system(AFC)to replace the traditional artificial ticket to improve the efficiency of the subway,and Automatic Fare Collection system is an important symbol of subway information and autonomy.Ticket Vending Machines(TVM)is one of the essential equipment in the Automatic Fare Collection system.It is mainly for the passengers to provide an interface,which is simple,friendly,and easy to operate,guiding the passengers to quickly and independently purchase the relevant valid votes.With the strong support of the country,the subway business has also been developed rapidly,at the same time,the demand for Ticket Vending Machines is also growing.Only combined with the local situation and characteristics,the Ticket Vending Machines system can be able to fully exert the functions and efficiency of itself.Therefore,it is great practical significance to study and develop a reliable and easy-to-use terminal software system for subway Ticket Vending Machine.Taking the terminal software system for Shenzhen subway Ticket Vending Machine project as a research background,this paper makes a detailed investigation and research on the domestic and foreign research status of Automatic Fare Collection system and Ticket Vending Machines.This article mainly completes the following work:(1)The system selected Windows Embedded Standard 7(WES7)embedded system as the operating environment,and adopted the use of object-oriented C + + language in the Visual Studio 2013 platform for system development.(2)After the terminal software system for subway Ticket Vending Machine has been analyzed thoroughly,the Mercury architecture is determined as the system architecture.The system has been hierarchically design,including the interface layer,business layer,hardware layer,the public module layer,and each layer were designed and implemented in detail.(3)The system interface and interface were designed in detail.Interface mainly includes user interface,external interface,and internal interface.The interface are mainly passenger interface and maintenance interface.(4)The system uses the active messenger technology during the messagetransmission process with other equipment,and uses the Adobe Flash / Flex technology in human-machine interface design,and uses a lightweight embedded database SQLite database in the database design.(5)The system conducts a series of related tests to ensure that the system can meet the relevant needs and operate reliably,stably and continuously,meanwhile,it also can point out the insufficiency of system which can be improved as the updated advice for the next version.