KR100597586B1 - Data Synchronization method using Session Management - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a data synchronization method using a session management function.

2. The technical problem to be solved by the invention

The present invention defines a session manager to synchronize a plurality of terminals used by a user, or a plurality of data located at a remote location with the latest information and the central data synchronization server, and through this process, the synchronization process, and by synchronization function The purpose of this paper is to provide a data synchronization method using session management function to enable processing by changing only frames dependent on the system when applying a new framed design technique.

3. Summary of Solution to Invention

According to an aspect of the present invention, there is provided a data synchronization method using a session management function applied to a data synchronization system, the method comprising: checking an authentication and anchor value through a data synchronization server according to a data synchronization request from a user; A session creation request step of requesting a new session creation to the session manager while the synchronization agent starts processing a message according to the confirmation result; A session value returning step of generating session information through the session manager and returning the generated session value to the synchronous agent; And a synchronization command processing step of processing the synchronization command using the returned session value, and storing and managing the command processing result.

4. Important uses of the invention

The present invention is used for data synchronization system and the like.

Data, synchronization, session management, synchronization agent, session information, command, session creation

Description

Data Synchronization method using Session Management}             

1 is an exemplary configuration diagram of a data synchronization system located at an end of an Internet service system to which the present invention is applied;

2 is a diagram illustrating an embodiment of a frame structure of a data synchronization system according to the present invention;

3 is an exemplary configuration diagram of a data synchronization system using a session management function to which the present invention is applied;

4 is a diagram illustrating an example of a session information structure that a session manager needs to manage according to the present invention;

5 is a flowchart illustrating a data synchronization method using a session management function according to the present invention.

* Explanation of symbols for the main parts of the drawings

11: data synchronization system 21: server applications

22: server adapter 23: synchronous agent

24: sync engine 25: session management unit

26: Open Database Adapter 27: Synchronization Tool Adapter

28: communication adapter 29: session information database

The present invention relates to a data synchronization method using a session management function, and more particularly, a plurality of user terminals or a plurality of data located at a remote location are connected to a centrally located session management unit based data synchronization server and updated with the latest information. It relates to a data synchronization method using a session manager for synchronizing.

The existing technology handles data synchronization using its own synchronization function and protocol between a single device and a single synchronization server, and lacks the compatibility of the synchronization program between heterogeneous systems or different application services.

In addition, there is a problem that it is very complicated to reflect various synchronization requests from a plurality of terminal devices to the server.

For reference, the data synchronization method will be described in more detail as follows.

First, with regard to data synchronization, a "platform independent software automatic search / distribution / installation apparatus and method thereof" (Republic of Korea Patent Publication No. "10-2003-0037123", 2003.05.12 publication) is as follows.

This prior patent relates to a technology for automatically searching / distributing / installing application software on a mobile device, and in particular, software that can be universally applied to various mobile devices, different operating systems, and various application software downloading sites. Automatic discovery / deployment / installation and methods thereof.

Currently, most mobile application software, such as personal digital assistants (PDAs) and handheld personal computers (HPCs), are published through dedicated websites, and users constantly monitor web information to download the software they want to their desktops. In addition, after the user establishes a physical connection between the desktop and the mobile device, the user has to install the application software on the mobile device by using the application software installation from the desktop.

In the application software mounting method described above, in consideration of various user layers of a mobile device, not only users who are not familiar with computers but also users who are familiar with computers have problems of continuously monitoring new software. As described above, there is a need for an apparatus for automatically searching for and automatically distributing software on a website without user intervention.

Therefore, the automatic software installation agent according to the patent is a web information for monitoring and analyzing the update information of the web document in the web server in which the application software for the PDA is published through the communication network connected using the communication platform inside the PDA at predetermined intervals. A management unit, a user symbol manager that stores and manages preference information of the PDA user, a communication manager which instructs the software installation manager to install when the web information manager is informed that there is new information, and according to the instructions from the communication manager. It is equipped with a software installation management unit that downloads new software posted on the web server and installs it on a PDA so that ordinary users who are not familiar with computers can easily use the latest PDA-specific applications on their terminals. This reduces the user's additional efforts for monitoring and retrieving software information. Also, the web search time interval, the type of software to be downloaded, such as the user's preference, are entered in advance. Application to processing enables more autonomous service implementation.

However, since the preceding patent does not apply the standard to the main functions such as terminal communication and web analysis, and searches and installs software depending on a specific website, various mobile devices, different operating systems, In addition, there is a problem that it is not universally applicable to various application software downloading sites.

On the other hand, with regard to other methods of performing data synchronization, look at the "method and system for managing a personal portable terminal through the Internet" (Republic of Korea Patent Publication No. "10-2003-0047962", published on June 18, 2003) .

A technology that automatically discovers / distributes / installs application software on mobile devices, which includes the steps of continuously monitoring web information, downloading desired software to their desktops, and establishing a physical connection between the desktop and the mobile device. And mounting the application software to the mobile device using application software installation from the desktop.

However, the preceding patent is not only universally applicable to various mobile devices, different operating systems, and various application software downloading sites, but also a plurality of terminals used by a user, or a plurality of remotely located data. A, it does not function to efficiently synchronize data with the latest information by connecting to a centrally located data synchronization server.

Accordingly, a method for synchronizing data between a plurality of terminals used by a user and a data synchronization server using a session manager with the latest information is applied to a data synchronization system based on a data synchronization protocol (SyncML protocol). It is required.

The present invention has been proposed to meet the above requirements, in order for a plurality of terminals used by a user or a plurality of remotely located data to synchronize data with a centrally located data synchronization server with the latest information, Provides data synchronization method using session management function to define and manage session management unit and synchronize through it, and apply frame designing method by synchronization function to process by changing only frame dependent on system when adding new service. Its purpose is to.                         

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

The method of the present invention for achieving the above object, in the data synchronization method using the session management function applied to the data synchronization system, in accordance with the data synchronization request from the user, to verify the authentication and anchor value through the data synchronization server Confirmation step; A session creation request step of requesting a new session creation to the session manager while the synchronization agent starts processing a message according to the confirmation result; A session value returning step of generating session information through the session manager and returning the generated session value to the synchronous agent; And a synchronization command processing step of processing the synchronization command using the returned session value, and storing and managing the command processing result.

The present invention may further include an information deleting step of deleting, from the memory, information held by the session manager at the session value according to a session end notification command from the synchronization agent when the synchronization command processing task is completed. It is characterized by.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary configuration diagram of a data synchronization system located at an end of an Internet service system to which the present invention is applied.

As shown in FIG. 1, the data synchronization system (data synchronization server) 11 is located at the end of the Internet service system 12 and is transmitted to the wired network 13 and the wireless network 15 by a user terminal (personal PC). , Notebooks, PDAs, mobile phones, etc.) 14, 16 to handle the synchronization of the address book or calendar managed in.

FIG. 2 is an exemplary diagram illustrating a frame structure of a data synchronization system (data synchronization server) according to the present invention, in which, "21" is a server application program, "22" is a server adapter, and "23" is a synchronization agent. "24" represents a synchronization engine, "25" represents a session management unit, "26" represents an open database adapter, "27" represents a synchronization tool adapter, and "28" represents a communication adapter.

As shown in FIG. 2, the server application 21 is actually a graphical user interface (GUI) for accessing the server's database to directly change data in the database or retrieve information in the server. It is independent of modules such as sync agent 23 and sync engine 24 that perform data synchronization with user devices.

The server adapter 22 passes the synchronization request message received by the servlet from the client into the synchronization agent 23 through the JNI (Java Native Interface). At this time, the module serving as an interface between the DLL and the servlet This is the server adapter 22. Modules that directly interface with the server adapter 22 are divided into a synchronization tool adapter 27 and a synchronization agent 23.

Here, the sync agent 23 processes the sync request message according to the SyncML protocol, and controls the sync engine 24, the session manager 25, the sync tool adapter 27, and the open database adapter 26. to be.

The synchronization engine 24 is a frame that is service dependent and plays a role of reflecting synchronization data items in a database, mediating when a data collision occurs, and the like. The sync engine 24 processes a task of reflecting the data item itself indicated by the sync agent 23 to the database in the server.

The session manager 25 is a frame that manages server session information for a device of a specific user device. Manages information about the session currently being synchronized.

The open database adapter 26 is a frame supporting APIs (Application Program Interfaces) for interworking with various databases.

The synchronization tool adapter 27 is a frame that supports APIs for parsing and generating synchronization messages.

The communication adapter 28 is a frame that supports transport binding between the client and the server.

3 is an exemplary configuration diagram of a data synchronization system (hereinafter, referred to as a data synchronization server) using a session management function to which the present invention is applied, and illustrates a communication structure of the session management unit 25.

As shown in FIG. 3, in the data synchronization system using the session management function to which the present invention is applied, a plurality of terminals used by a user or a plurality of data located at remote locations are connected to a centrally located data synchronization server. In order to synchronize data with information, access the session manager to perform synchronization commands, and use the design technique framed for each synchronization function to change and process only dependent frames even when adding a new service.

First, information necessary for session maintenance is managed in the session information database 29.

In addition, the data synchronization server 11 obtains session information through the session manager 25 when necessary in processing a request command, and defines the session manager 25 as an independent process type that resides in memory, thereby allowing a database to be used for one session. Keep the connection. In addition, you can save time processing messages rather than having to reconnect to the database each time a user requests a message.

The session manager 25 is configured as an independent process and is always in a running state as a daemon in the server. In addition, session information required for synchronization is directly managed in memory.

That is, when the synchronization server 10 receives a request message from the user, the synchronization server 10 creates a new session in the session manager 25 to register necessary information in the request message received from the user, and the data synchronization server 11 sends a response to the user. It also manages the information needed to generate messages. Data necessary for the synchronization task between the user and the data synchronization server 11 can be obtained from the session manager 25, and deletes the corresponding session information from the session manager 25 when all synchronization tasks are completed, and terminates the session. .

On the other hand, the data synchronization server is a synchronization agent 23 for processing a synchronization request message delivered according to the synchronization protocol in a modular frame structure, a synchronization engine that is service dependent and reflects synchronization data items in a database and mediates when a data collision occurs ( 24) has a frame structure such as a session management unit 25 for managing session information on a synchronization request transmitted from a user, and a session information database supporting APIs for interworking with multiple databases.

4 is a diagram illustrating an example of a session information structure that a session manager needs to manage according to the present invention. FIG. 4 illustrates session information that a session manager needs to manage for a synchronization request transmitted from a user.

As shown in FIG. 4, the session information managed by the session manager 25 includes a user name 41, a device ID 42, a session ID 43, and authentication type information 44. The start pointer 45 for the structure indicating the status information, the end pointer for the structure indicating the status information, the start pointer 46 for the structure indicating the synchronization command information transmitted from the user, and the synchronization command information transmitted from the user. And an end pointer to the structure indicating the synchronization instruction processing result information, and an end pointer to the structure indicating the synchronization instruction processing result information.

The operation process of the data synchronization method using the session management function according to the present invention having the structure as described above will be described in detail as follows.

5 is a flowchart illustrating a data synchronization method using a session management function according to the present invention.

As shown in FIG. 5, when a user's synchronization request message arrives at the data synchronization server 11 (501), the authentication and anchor values are checked before starting synchronization.

As a result of the check, in the case of the normal synchronization request message, the synchronization agent 23 requests the session management unit 25 to create a new session while starting the message processing (502).

Accordingly, after generating the session 503, the session manager 25 returns the generated session value (session ID) to the synchronization agent 23 (504).

Subsequently, the synchronization command is processed using the returned session value (505), and the session manager 25 requests the session manager 25 to store the command processing result, and the session manager 25 stores and manages the session information (507). In other words, session information necessary for the synchronization task is obtained by requesting the session manager 25 using the session index value.

Thereafter, when all the synchronization command processing tasks are completed (508), the synchronization agent 23 informs the session manager 25 that the session is terminated (509), and the session manager 25 notified of this is set to the session index value. The retained information is deleted from the memory (510).

As described above, session information that manages information about a connection between a user and a synchronization server is not managed, and an enterprise general purpose database structure is used instead of an mutually open database and a database management system such as Oracle is used. Unlike the prior art, which cannot be interlocked, the data synchronization method according to the present invention makes it possible to process by changing only system dependent frames when adding a new service by using a framed design technique for each synchronization function. Manage session information from the start to the end of a synchronization connection.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

As described above, the present invention enables the processing by changing only the system-dependent frame when adding a new service using a design technique framed for each synchronization function, and session information from the start to the end of the synchronization connection with the user's device. In this case, the session management unit, which is a frame for managing sessions, is defined to reduce unnecessary function calls and database operation calls.

Claims (5)

In the data synchronization method using a session management function applied to a data synchronization system, Confirming the authentication and the anchor value through the data synchronization server according to a data synchronization request from the user; A session creation request step of requesting a new session creation to the session manager while the synchronization agent starts processing a message according to the confirmation result; A session value returning step of generating session information through the session manager and returning the generated session value to the synchronous agent; And A synchronization command processing step of processing a synchronization command using the returned session value, and storing and managing a command processing result. Data synchronization method using a session management function comprising a. The method of claim 1, An information deleting step of deleting, from the memory, information held by the session manager at the session value according to a session end notification command from the synchronization agent upon completion of the synchronization command processing task; Data synchronization method using a session management function further comprising. The method according to claim 1 or 2, The data synchronization server, Synchronization agent that handles synchronization request message delivered according to synchronization protocol in the modular frame structure, synchronization engine dependent on service and reflecting synchronization data items in database and mediating in case of data conflict, session information for synchronization request from user Session management unit for managing the data synchronization method using a session management function, characterized in that it comprises a frame structure, such as a session information database supporting API (Application Program Interface) for interworking with multiple databases. The method of claim 3, wherein The session management unit, And managing the session information of the user during the request session of the user in an independent process structure residing in memory in the session information database. The method of claim 4, wherein The session information, User name, device ID (ID), session ID (ID), authentication type information, start pointer to structure indicating status information, end pointer to structure indicating status information, structure indicating synchronization command information delivered from user. And a start pointer for the structure indicating the synchronization command processing result information, a start pointer for the structure indicating the synchronization command processing result information, and an end pointer for the structure indicating the synchronization command processing result information. Data synchronization method using session management function.

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