CN100391291C - A data backup and recovery method and system thereof - Google Patents

Abstract

The present invention discloses a method for data backup and recovery. First of all, data of a device end comprises software programs and individualization data of the device end and is backed up on a device management server. When the data of the device end is lost or wrong, the backup data can be recovered to the device end. When the software programs of the device end are wrong, the backup software can be automatically downloaded and then is installed and configured so as to accomplish the recovery of the data and the software of the device end. According to the present invention, by saving the data of the device end in the device management server, the recovery capability of the data of the device end can be ensured. Particularly, the present invention provides the recovery capability of private data of the device end. Therefore, the present invention is convenient for users, and the users' experience is raised.

Description

A data backup and recovery method and system thereof

technical field

The invention relates to a communication technology, in particular to a data backup and recovery method and system in equipment management.

Background technique

With the development of mobile communication services, mobile terminals play an increasingly important role in the entire mobile operation service system, making the functions of mobile terminals increasingly complex, and the possibility of terminal software problems increasing significantly. For example, the risk of data loss such as configuration data and authentication certificates of the user terminal is also significantly increased; secondly, errors in the terminals may also cause errors or loss of the management tree. In order to solve the above problems, operators and terminal manufacturers usually provide various services for mobile terminals through device management servers in order to effectively guarantee user experience, improve user loyalty, maintain efficient service quality, and maintain low-cost equipment.

In order to provide various services to mobile terminals, in the prior art, such as the OMA DM (Open Mobile Alliance Device Management) specification defines a unified standard specification for the overall architecture of device management, protocols and communication mechanisms, security and other issues. In this way, the DMS (device management server) needs to manage and monitor the device terminal through the DM (device management) protocol, so as to provide management, upgrade, diagnosis and repair functions according to the status of the device terminal, so that the DMA (device management terminal agent) of the device terminal follows The DM agreement accepts DMS management and services.

When a device terminal fails, you can upgrade the software, install patches, update firmware, or reconfigure parameters for the device terminal through DMS. Although these operations can restore the state of the device terminal to a certain state, it cannot protect some of the personality of the device terminal Therefore, the experience of the user is reduced; in addition, when updating the data of the device terminal in the above-mentioned prior art, it is necessary to manually search for relevant software, which is time-consuming and inconvenient.

Contents of the invention

The purpose of the present invention is to provide a data backup and recovery method and its system, when the equipment terminal fails, not only the public data of the equipment terminal can be recovered, but also the personalized data of the equipment terminal can be restored, and the program update can be facilitated.

The present invention provides a data backup method, which is applied to a device management system. The device management system includes a device terminal and a device management server. The device management server is used to maintain and manage the device terminal. The method includes:

A. The device terminal establishes a session with the device management server and determines the backup data;

B. The device terminal obtains the backup data identifier according to the determined backup data, and then sends the backup data identifier to the device management server;

C. The device management server obtains the backup data of the device terminal according to the backup data identifier;

D. The device management server stores the obtained backup data.

Step A further includes: the device terminal establishes a session through the user interface and determines backup data; or the device terminal establishes a session with the device management server through a text message or portal and determines backup data; or automatically establishes a session and determines backup data according to predetermined conditions data, the predetermined conditions include time conditions or event conditions, the time conditions include timing and interval predetermined time, and the event conditions include data modification and software update.

Described step C further comprises:

C1. The device terminal puts the selected backup data on the device management tree;

C2. The device management server obtains the backup data placed on the management tree.

Described step C also includes:

C3. The device terminal packs the selected backup data and sends it to the device management server.

The step B further includes: when the data to be backed up is program data, only the identification and version number of the program data are backed up.

The step D further includes: the device management server stores the obtained backup data in the form of a tree.

The data backup method also includes a backup identifier, which is used for the device terminal to notify the device management server to perform a backup operation when a session is established between the device terminal and the device management server.

The present invention also discloses a data recovery method, which is applied to a device management system, the device management system includes a device terminal and a device management server, and the device management server is used to maintain and manage the device terminal, and the method includes :

A. Establish a session between the device terminal and the device management server, and determine the backup data identifier;

B. The device terminal sends the determined backup data identifier to the device management server;

C. The device management server obtains the backup data of the device terminal according to the backup data identifier;

D. The device management server restores the data of the device terminal according to the backup data.

The determining the backup data identifier in the step A further includes: the device terminal determines the backup data identifier through a user interaction interface, or determines the backup data identifier through interaction between the device management server and the device terminal.

The data recovery method also includes a recovery identifier, which is used for the device terminal to notify the device management server to perform a recovery operation when a session is established between the device terminal and the device management server.

The present invention also discloses a data recovery/backup system, which includes a device terminal and a device management server. The device terminal includes: a selection module for selecting backup data and determining a backup data identifier according to the backup data; a communication module for The determined backup data identifier is sent to the device management server to receive the selected backup data; the device management server includes: a memory for storing the backup data; a communication module for obtaining the backup data identifier from the device terminal, according to the backup data Identify the backup data obtained from the terminal, or obtain the backup data locally according to the backup data identifier, and send the backup data to the device terminal; the processing module is used to identify the backup/restore request of the device terminal, and process the backup data according to the backup/restore request perform operations; and a communication network, used for communication between the device terminal and the device management server, the communication network includes a wireless network or a wired network.

The present invention also discloses a device terminal for data recovery/backup. The device terminal includes: a selection module for selecting backup data and determining a backup data identifier according to the backup data; a communication module for converting the determined backup data The identification is sent to the device management server, and the backup data restored by the device management server is received.

The present invention also discloses a device management server for data recovery/backup. The device management server includes: a memory for storing the backup data of the device terminal; a communication module for obtaining the backup data identifier from the device terminal, according to The backup data identifier obtains the backup data from the terminal, and stores the backup data, or obtains the backup data of the device terminal locally according to the backup data identifier, and sends the backup data to the device terminal; the processing module is used to identify the device terminal backup/restore requests, and operate on the backup data according to the backup/restore requests.

According to the present invention, by storing the terminal data on the DM server, the recoverability of the terminal data can be ensured, especially for the private data of the device terminal, the data recovery capability can be provided, thereby facilitating users and improving user experience.

Description of drawings

Fig. 1 is the flow chart of data backup of the present invention;

FIG. 2 is a schematic diagram of a device management tree;

Figure 3 shows a schematic diagram of storage of backup data;

Fig. 4 shows a schematic diagram of the system of the present invention.

Detailed ways

In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings.

The basic idea of the present invention is: first, backup the data of the equipment terminal to the equipment management server. The data includes software programs and personalized data of the device terminal, and when the data of the device terminal is lost or wrong, the backup data can be restored to the device terminal. When the terminal software program is wrong, the backup software can be automatically downloaded, and then installed and configured to complete the data and software recovery of the device terminal. The device terminals include mobile devices such as mobile phone terminals, palmtop computers, notebook computers, embedded devices, and vehicle-mounted systems.

The data backup method of the present invention is described below.

As shown in FIG. 1 , in step 1, a session is first established between the device terminal and the device management server, and backup data is determined. There are three ways to establish a session and determine the backup data, one is through the UI (User Interface), the other is through setting automatic trigger conditions on the terminal, and the third is through other methods. The three methods are described below.

The following describes the process in which the device terminal initiates a session through the UI and determines the backup data. The terminal device initiates an operation session request to the DM server through the DM Agent, and a Generic Alert (service request) is attached to the session request to inform the server of the backup operation requested by the terminal. If the backup data to be backed up is determined when the request is initiated, a backup data identifier (such as a URI uniform resource identifier) is attached to the Generic Alert; otherwise, that is, the Generic Alert does not have a backup data identifier, the device management server and the device terminal pass Interactively determine the backup data to be backed up. The method of determining the backup data can be: the user determines through the terminal interactive interface, or the server first obtains the data information that the terminal can serve as target data, and then presents the data information to the user by issuing an interactive command And let the user choose, and the user determines the target data that needs to be backed up according to the information provided by the interactive interface.

When the device terminal needs to inform the server terminal of the requested operation, this purpose can be achieved by attaching the Generic Alert command in the session request packet. The Generic Alert command needs to be accompanied by a pre-defined backup identifier that both parties understand, that is, the Alert Type. For example, the Alert Type of data storage can be defined as "org.openmobilealliance.dm.backup.userrequest".

The following describes the process in which the terminal sets an automatic trigger condition and automatically initiates session backup data. Firstly, trigger conditions are set in the terminal, which include time conditions (such as timing, a certain time interval, etc.), event conditions (such as data modification, software update, etc.). When the monitoring program monitors that the trigger conditions are met, it will first automatically determine the target data that needs to be backed up. When the time condition is used, all data can be backed up, or some data can be backed up; when the event condition is used, such as data modification conditions, Only modified data can be backed up. Then initiate a session request through DM Agent. A Generic Alert is attached to the session request packet to inform the server terminal of the requested operation, and a backup data identifier (such as a URI uniform resource identifier) is attached at the same time.

The process of initiating a session and determining the backup data through other means (such as Portal (portal), short message, etc.) is described below. Notify the DM server to back up the backup data of the device terminal through other means (such as Portal, short message, etc.), and the device management server sends Notification (notification) to the device terminal to establish a session. If the user does not inform the DM server of the backup data that needs to be backed up when requesting the DM server, the DM server and the device terminal interact to determine the backup data to be backed up. The determination method can be that the server first obtains data information that the terminal can serve as target data, Then, the data information is presented to the user by issuing an interactive command for the user to select, and the user determines the target data to be backed up according to the information provided by the interactive interface.

In step 2, when the device terminal establishes a session with the device management server and determines the backup data, the device management server can obtain the backup data of the device terminal according to the backup data selected by the device terminal. According to the present invention, there are three ways to obtain the backup data , the method for the server to obtain the backup data is described below.

In the first method, after the backup data is determined, the backup data identifier (such as the URI of the backup data) can be transmitted to the device management server. The backup data can be determined in two cases: one is determined by the device terminal, and the other is determined by the device terminal and the device management server.

In the first case, for the backup data determined by the device terminal, the device terminal can send the backup data identifier (such as URI) to the device management server through <LocURI> of GenericAlert. For example, the backup data identifier can be sent to the device management server through the following command Device management server.

<Alert>

<CmdID>2</CmdID>

<Data>1226</Data><--Generic Alert-->

<Item>

<Source><LocURI>./Root</LocURI></Source>

<Meta>

<Type>org.openmobilealliance.dm.backup.userrequest</Type>

<Format>chr</Format>

</Meta>

<Data/>

</Item>

</Alert>

In the second case, the backup data determined by the interaction between the device terminal and the server returns the selection result (that is, the backup data identifier such as URI) to the device management server through <Status> corresponding to the interaction command.

After obtaining the URI of the target data, the device management server can directly issue the Get command to obtain the target data specified by the URI. Data can be pre-processed before transmission, such as compression, encryption, etc. For example:

<Get>

<CmdID>4</CmdID>

<Item>

<Target>

<LocURI>./Root</LocURI>

</Target>

</Item>

</Get>

The second method, as shown in Figure 2, after the device terminal determines the backup data, the device terminal packs the data and stores it in a separate node of the device management tree, so that the device management server can obtain the data package. In order to realize this method, a node Outbox for storing backup data is firstly added to the DM management tree. The Outbox node provides a data transmission channel for the device terminal and the device management server. After the device terminal determines the stored backup data, the device terminal will package the backup data and store the backup data package on the Outbox node. The server directly obtains the data of this node through the command Get.

In the third method, after the device terminal determines the backup data to be stored, the device terminal packages the backup data, and then directly uploads it to the server, and uploads using the Generic Alert command. For example:

<Alert>

<CmdID>2</CmdID>

<Data>1226</Data><--Generic Alert-->

<Item>

<Source><LocURI>./Root</LocURI></Source>

<Meta>

<Type>org.openmobilealliance.dm.backup.userrequest</Type>

<Format>chr</Format>

</Meta>

<Data>

<CDATA>...</CDATA><--Upload data-->

</Data>

</Item>

</Alert>

In step 3, the DM server stores the obtained backup data. According to the present invention, as shown in FIG. 3 , the data packets can be organized in the form of a tree: the tree has two sub-trees, which respectively store data on the terminal management tree and the non-management tree. If it is the data on the management tree, the organization of the tree is organized according to the structure of the terminal management tree; for the data on the non-management tree, it is organized according to its path on the terminal side.

Finally, the device management server stores the obtained backup data. Backup data is stored in tree form on the device management server. The backup data is stored on the tree. The storage method is as follows. First, the backup data is searched on the tree. If found, it is updated. If not, the node for storing the backup data is added to the tree.

In order to reduce the traffic when backing up data, certain measures can be taken, such as setting some identification marks on the terminal side, so that only the modified part of the determined backup data is sent each time, instead of all the backup data.

The following describes the data recovery method. When data needs to be backed up, the DM server can be notified through Portal, short message, etc., or the device terminal directly initiates a session, and the Generic Alert is used to notify the server so that the DM server can restore the data. If the DM server is notified by Portal or short message, the DM server will send Notification (notification) to the device terminal to trigger the session establishment process. If there is no target data that the DM server needs to operate when making a request to the DM server, it is necessary to interact with the DM server and the device terminal after the session is established to determine the target data to be operated. The determination method can be that the server first obtains the backup data information, Then, the data information is presented to the user by issuing an interactive command for the user to select, and the user determines the target data to be restored according to the information provided by the interactive interface. After determining the target data, the DM server extracts the data on the backup data tree and restores it to the terminal. Backup data can use the Replace command or other commands.

When the device terminal needs to inform the server terminal of the requested operation, this purpose can be achieved by attaching the Generic Alert command in the session request packet. The Generic Alert command needs to be accompanied by a pre-defined recovery identifier that both parties understand, that is, the Alert Type. For example, the Alert Type of data restoration can be defined as "org.openmobilealliance.dm.restore.userrequest".

According to the present invention, preferably, in the data backup process, when the backed up data is program data, only the identification and version number of the program data can be backed up; during the data recovery process, the DMS can control the device according to the program data identification and version number The terminal downloads, installs and configures the program data.

As shown in Fig. 4, the present invention provides a data backup/restoration system, including a device terminal, a communication network and a DM server. The device terminal includes: a selection module for selecting backup data; a communication module for sending the selected backup data to the DM server and receiving the selected backup data. The DM server includes: a memory for storing backup data; a communication module for obtaining backup data from the device terminal and sending the backup data to the device terminal; a processing module for identifying the backup/restore request of the device terminal, and Operate the backup data according to the backup/restoration request. When the device terminal sends a backup request, the processing module obtains the backup data and stores the backup data in the memory. When the device terminal sends a restore request, the processing module uses the backup data to restore the device Terminal target data. The communication network includes a wireless network or a wired network, and is used for communication between the device terminal and the device management server.

According to the present invention, by storing the terminal data on the DM server, the recoverability of the terminal data can be ensured, especially for the private data of the device terminal, the data recovery capability can be provided, thereby facilitating users and improving user experience.

In addition, according to the present invention, when performing program restoration, it is not necessary to search for the program to be restored, and the device management server will automatically control the device terminal to download, install and configure the program according to the backed up program information (such as the ID and version number of the backup program), thereby It facilitates the program recovery of the device terminal.

Although the present invention has been described by the embodiments, those of ordinary skill in the art know that, without departing from the spirit and essence of the present invention, the present invention can have many modifications and variations, and the scope of the present invention is defined by the appended rights Requirements to limit.

Claims (14)

1. a data back up method is applied in the equipment management system, and described equipment management system comprises device end and device management server, and described device management server is used for device end is carried out maintenance management, it is characterized in that, described method comprises:

A, device end and device management server are set up session, and definite Backup Data;

B, device end obtain the Backup Data sign according to the Backup Data of determining, then the Backup Data sign are issued device management server;

C, device management server obtain the Backup Data of device end according to the Backup Data sign;

The Backup Data that D, device management server storage obtain.

2. data back up method according to claim 1 is characterized in that, further comprises in described steps A: device end is set up session and is determined Backup Data by User Interface; Perhaps device end is set up session and is determined Backup Data by note or door and device management server; Perhaps set up session automatically and determine Backup Data by predetermined condition, described predetermined condition comprises time conditions or event condition, and described time conditions comprises regularly and the interval scheduled time that described event condition comprises data modification and software upgrading.

3. data back up method according to claim 2 is characterized in that, described step C further comprises:

C1, device end are placed on the Backup Data of selecting on the device management tree;

C2, device management server obtain the Backup Data that is placed on the device management tree.

4. data back up method according to claim 2 is characterized in that, described step C also comprises:

C3, device end are packed the Backup Data of selecting, and are issued device management server.

5. data back up method according to claim 1 is characterized in that, described step B also comprises: when backed up data is routine data, and sign, the version number of a stand-by program data.

6. according to the wherein arbitrary described data back up method of claim 1 to 5, it is characterized in that described step D further comprises: device management server is with the Backup Data of the form storage acquisition of tree.

7. according to the wherein arbitrary described data back up method of claim 1 to 5, it is characterized in that also be provided with the backup sign, when being used for setting up session between device end and device management server, device end announcement apparatus management server carries out backup operation.

8. a data reconstruction method is applied in the equipment management system, and described equipment management system comprises device end and device management server, and described device management server is used for device end is carried out maintenance management, it is characterized in that, described method comprises:

Set up session between A, device end and the device management server, and definite Backup Data sign;

B, device end are issued device management server with the Backup Data sign of determining;

C, device management server obtain the Backup Data of device end according to the Backup Data sign;

D, device management server are according to the data of Backup Data restorer terminal.

9. data reconstruction method according to claim 8, it is characterized in that, further comprise in the definite Backup Data sign described in the described steps A: device end is determined the Backup Data sign by the User Interface mode, perhaps determines that by mutual between device management server and the device end Backup Data identifies.

10. according to Claim 8 or 9 described data reconstruction methods, it is characterized in that also be provided with and recover sign, when being used for setting up session between device end and device management server, device end announcement apparatus management server carries out recovery operation.

11. a data recovery/standby system comprises device end and device management server, it is characterized in that,

Described device end comprises: select module, be used to select Backup Data, determine the Backup Data sign according to Backup Data; Communication module is used for the Backup Data sign of determining is issued device management server, receives the Backup Data of selecting;

Described device management server comprises: memory is used for store backup data; Communication module is used for the slave unit terminal and obtains the Backup Data sign, obtains Backup Data according to described Backup Data sign from terminal, perhaps obtains Backup Data from this locality according to the Backup Data sign, and Backup Data is issued device end; Processing module is used for the backup/restoration request of identification equipment terminal, and request is operated Backup Data according to backup/restoration.

12. system according to claim 11 is characterized in that, described system also comprises communication network, is used for communicating between device end and the device management server, and described communication network comprises wireless network or cable network.

13. a device end that is used for data recovery/backup is characterized in that, described device end comprises: select module, be used to select Backup Data, determine the Backup Data sign according to Backup Data; Communication module is used for the Backup Data sign of determining is issued device management server, the Backup Data that the receiving equipment management server recovers.

14. a device management server that is used for data recovery/backup is characterized in that, described device management server comprises: memory is used for the Backup Data of memory device terminal; Communication module, be used for the slave unit terminal and obtain the Backup Data sign, obtain Backup Data according to described Backup Data sign from terminal, and store described Backup Data, perhaps obtain the Backup Data of device end from this locality, and Backup Data is issued device end according to the Backup Data sign; Processing module is used for the backup/restoration request of identification equipment terminal, and request is operated Backup Data according to backup/restoration.

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