Multi Terminal Automatic Synchronization Technology For Address Book Contacts

With the rapid development of mobile communication technology and mobile Internet technology,more and more people have multiple terminals,and when data are not synchronized on different terminals,it happens.This brings some inconvenience to people's use.As a result,we need a convenient way to implement data backup between different terminals.This thesis mainly studies the problem of multi platform synchronization based on address book.This thesis first introduces the current research status at home and abroad,including the commonly used address book synchronization technology,and compares the address book synchronization technology,and analyzes the conventional three types of synchronization: uploading,downloading and synchronization can cover most of the user's needs.But in synchronization,because of the way of full data comparison,it can not solve the situation of unilaterally modifying or deleting contacts,resulting in data redundancy.This thesis puts forward a core technology of automatic synchronization technology: ID mapping,the contacts between the client and the server side create a bidirectional mapping through a unique ID.If one of the data changes at one end,the ID number of the other end can be obtained through the ID mapping,so the changed data can be accurately synchronized to the other end,and the solution can be solved.The original problem that can not be solved.In view of the solution of ID mapping,the client processing scheme of automatic synchronization scheme and the platform processing scheme are given.Then the whole process of the synchronization of the client to the platform is introduced,and the consistency of multi terminal lock to ensure the simultaneous synchronization of multi terminal data at the same time is designed for the situation of multi terminal synchronization.For the single terminal,cloud,multi terminal and other synchronous addresses,such as new,modified,increase and other changes of the description and analysis of the scene,focus on the synchronization of abnormal scenes and processes are analyzed and located.The system architecture is fully elaborated.The scheduling capability,the framework service capability and the fault tolerance and the load capacity are described in detail.Finally,the overall process and time sequence diagram of the platform change are fully explained,and the process of the synchronization lock is explained.At the same time,each form in the whole architecture is explained,and the definition and description of the interface request and response parameters are carried out to facilitate the design and implementation of the overall software framework through the standardized protocol interface.According to the multi terminal multi platform automatic synchronization technology,this thesis proposes the architecture and implementation of the multi terminal multi platform automatic synchronization,including the three layers of application layer,capability layer and data layer,and designs the high performance and high availability of the system,and puts forward the corresponding key technology design.The automatic synchronization model,fast synchronization mode,synchronous lock and exception scenario protection for automatic synchronization applications across terminals and platforms are complemented.Finally,the main research results are summarized,and the summary and prospect are put forward,and the product scenes and products related to the communication contacts are put forward in this technology,including the contact recovery station,the time machine,the strange contact person,the contact portrait,the six degree relationship,and so on.End multi platform automatic synchronization technology can develop a wide range of product scenarios and applications,resulting in great social and economic value.