Design And Implementation Of Mobile Anti-Lost System Based On Windows Mobile

Nowadays, as smart phone's functions are enhancing, it has been widely used in daily life. As an increasing number of personal bussiness has been applied on mobile phones, more and more important data will be stored in smart phones. If a mobile phone was lost, the information leak issue will be very serious. So the mobile phone information security issues caused by phone lost worth researching.This paper first introduces the research background, objective, development status, related technologies of this topic. Then it analyzes the Anti-Lost System's requirements in accordance with functionality. This system is devided into 6 modules, include: User Interface Module, Center Controller Module, SMS Monitor Module, Anti-Lost Process Module, Data Management Module and Communication Module. Then it summarizes the overall architecture of this system. A three level architecture module was built to separate data from controlling for future expansion. At the same time it uses WTL to implement Common Control Library which includes many controls class to support User Interface Module and enhances the system's reusability. After the completion of the overall design, this paper focuses on explaining the system's outline and detailed design. It analyzes each module's properties, methods and key processes. Each module provides many methods to implement specific functions. Modules communicate by passing parameters and the coupling is low. On the basis of the detailed design, this paper also analyzes the difficulties which include keyboard pressed event capture, communication between threads, control transparency and screen adaptation. And then it presents related solutions one by one. Finally, it introduces the system's implement and test cases which can verify the system's function. On this basis it summarizes the findings and points out the improvement aspects.After evaluation, comparing with two important anti-lost software: SmartGuard and WaveSecure, this system can provide more comprehensive functions in anti-lost and SMS control aspects. It can help users to find whether the mobile phone has been stolen and protect the important information in the phone to reduce the losses brought by losing phone, it will have good application prospects.