Design And Implementation On .NET Compact Framework In Wireless Mobile Application System

.NET Compact Framework is a compact edition which based on the whole of.NET Framework.It contains a compatible subset of the basic library of.NET Framework.Meanwhile,.NET Compact Framework also contains a new realization of common language runtime,which is completely new and can be implemented effectively in the mobile device(such as PDA).As mobile networks become more and more popular in the actual application,the demonds of the mobile work are brought forward by all kinds of occupations.How to offer an effective mobile application system which can be implemented in mobile network is the focal point in the researching of the paper.The mobile application in the researching of the paper is Forecast System For the Fault of Railway Based on PDA.With powerful computing ability and integration with wireless communication module such as GPRS,PDA play a more and more important role in the field of the railway system.Comparing with traditional Forecast system,the advantage of the new forecast system for the fault of railway is the ability to help workers to obtain the information of the station more quickly and completely. If PDA is introduced to this system,to obtain the information of the fault of railway will be more conveniently.PDA provides a mobile and convenient information process service to workers.With the help of PDA,workers can obtain the information of the station anytime and everywhere.The system connects with the network by TCP/IP wirelessly.It creates mobile database in PDA by SQL Server CE 2.0 RDA(Remote Data Access) and communicates with the server database to carry out mobile maintenance operations. Electronic Map and information inquiry function can also be found in the system.In this paper,the requirement analysis and design of system based on the environment of GPRS networks will be presented according to the method of software engineering,and each function of this system has been achieved and tested carefully. The paper's main content consists of introduction,correlative technologies' introduetion,requirement analysis,general design,detailed design,capability analysis and function demonstration.In the introduction,the background,the civil and oversea actuality,the way and significance of the study are described.Then the correlative technologies are introduced.Subsequently,the requirement is analyzed.The general design that consists of main function,system framework,the modes of information's exchange and communications will be presented;after that,the detailed design that consists of communication regulation and the flow of main function will be presented based on the general design.At last,we analyze the capability of system in detail.In the conclusion,the innovation and shortage of system are deseribed.