CN101155018B - Data synchronization method and its implementing device and system - Google Patents
Data synchronization method and its implementing device and system Download PDFInfo
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Abstract
The present invention provides a method for automatically initiating the data synchronization and the realizing device and realizing system thereof, the device comprises the following components: a data synchronizing unit which is used to collocate frequency level for the data entry according to the using frequency of the data entry and collocate data synchronization strategy for the data entry according to the frequency level; and an information acquiring and transmitting unit which is used to realize the data communication of the equipment that needs to be synchronized. The invention realizes doing data synchronization for the data amending of the recording item of the linkman with a high using frequency, avoids the generating of the situation that the data amending of the recording item of the linkman with a low frequency frequently doing data synchronization, achieves the goal that the data synchronization is automatically and timely initialized, and reduces the trouble of factitiously tracing the variation state of the address book and initiating the data synchronization.
Description
Technical field
The present invention relates to the data synchronization technology field in the communication technology, a kind of method of data sync and implement device thereof and realization system.
Background technology
Data sync can be on any one network, carry out the synchronous of any one network data on the network equipment of any type, data sync is meant, for example, mobile phone and PDA (Personal DigitalAssistant, personal digital assistant) all there is address list in, also all there is identical address list in the PC of office and family or the notebook, people wish that the information in these equipment can be consistent all the time, promptly when the data variation on one of them equipment, make the data in other equipment also do corresponding renewal, this process of carrying out Data Update is exactly a data sync.
Data sync needs synchronous protocol.SYNCML (Synchronization Markup Language, synchronization makeup language) synchronous protocol initiates to set up data sync forum tissue by businessmans such as IBM, Lotus, Motorola, Nokia, Palm Inc tissue---the formulation of SyncML initiation group, since in December, 2000 SyncML 1.0 issues, there has been the company in the whole world of nearly 700 families announce to support this agreement, this agreement to be expected to develop into can be by the industry that the user accepts extensively a general synchronous protocol.
Use this agreement, SyncML data synchronization process needs six packets to finish usually, in detail referring to " SyncML Data Sync Protocol, version 1.2 " document, below simple a SyncML data synchronization process described:
As shown in Figure 1, no matter data synchronization process is to be initiated or initiated by server end by user side, and user side all at first sends synchronous initiation packet PKG1 to server end, mainly comprises user side authentication information, capacity of equipment in this packet;
After server end was received packet PKG1, checking user side account returned to client to the checking result simultaneously, will respond synchronous initiation packet PKG2 and issue user side;
User side is according to the packet PKG2 of server end, by analyzing the wheel synchronization type of appointment among the PKG2, take the corresponding synchronous mode to carry out synchronously, user side can be encapsulated into all data that change took place after last subsynchronous finishing in the local data base (data that comprise increase, deletion, modification) among the packet PKG3 and send to server end;
Wherein, in the Operation Log of local data base, identify the residing position of daily record after subsynchronous the finishing by daily record ID usually, user side needing when synchronous to carry out giving synchronously the information of being put down in writing in the daily record of the data of server end after being exactly daily record ID in next time, and is as shown in table 1 with reference to the log information form;
Table 1 is with reference to the log information form
| Daily record ID | LUID | The operation of carrying out |
| 1110 | 555 | Add |
| 1111 | 168 | Replace |
| 1112 | 123 | delete |
| 1113 | 556 | Add |
Wherein, LUID is the unique ID of certain bar data correspondence in the database;
After server end is received packet PKG3, with the renewal Data Update in this packet in the server end corresponding database; Server end will be when will instructing executing state to return to user side, and server end also can be encapsulated into all data that change took place after last subsynchronous finishing in its data storehouse (data that comprise increase, deletion, modification) among the packet PKG4 and return to client;
User side is updated to the server end data updated in the user side database according to the packet PKG4 that receives;
When user side will instruct executing state to return to server end, if comprise among the packet PKG4 and in local data base, increase data strip purpose add instruction, then client after new data are added in this locality, also needs to generate corresponding ID map information by packet PKG5 announcement server end in success;
Wherein, because the server end database volume is very big, thereby wherein in the ID of globally unique identifier of certain bar data correspondence (LUID:Global Unique Identifier) and the user side database LUID of certain bar data correspondence different, for the same data clauses and subclauses that both sides will be able to be operated are mapped, also can safeguard an ID mapping table at server end, shown in the table 2;
Table 2 ID mapping table
After the ID map information that server end comprises in packet PKG5 was maintained into mapping table, meeting return data bag PKG6 informed the executing state of user side maintenance instruction;
After user side was received packet PKG6, if wherein conditional code is all normal, then data sync successfully finished;
Described SyncML user side and SyncML server end, its effect is respectively:
User side:
It at first issues server end to its modification information, and user side must be able to receive the response message from server end, although always user side sends modification information earlier, but under certain conditions, server end is also wanted to initiate data synchronization process.User side is equipment such as mobile phone, PC or PDA normally;
Server end:
Generally comprise equipment such as synchronization engine and synchronous service agency, will wait for user side initiation synchronizing process usually, and user's modification information is sent to server end.Server end is responsible for receiving the modification information of user side, and analyzes synchronously.If in the order of transport layer back-level server end, server also can initiatively be initiated synchronizing process.General server equipment or PC can become server.
Above-mentioned method of data synchronization, its defective is: need the manual data sync demand of initiating of user side.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of method and implement device and realization system of automatic initiation data sync, to avoid the manual trouble of initiating the data sync demand of user side.
So, the invention provides a kind of method of data sync, but be used to realize the data sync between the communication equipment, said method comprising the steps of:
For the data clauses and subclauses frequency grade is set according to frequency of utilization, and is the different corresponding surely data synchronization strategy of frequency social estate system;
After described data clauses and subclauses are revised, take corresponding data synchronization strategy to carry out the data sync operation according to its corresponding frequency grade.
Wherein, the described frequency grade that is provided with further comprises:
According to self-defined or predefined time range, the frequency of utilization of data clauses and subclauses is added up, and determine the frequency grade according to statistical value.
Wherein, described is the different corresponding surely data synchronization strategy of frequency social estate system, comprising:
Carry out immediately data sync, regularly carry out data sync, and address list in be modified clauses and subclauses change carry out data sync when reaching the preset proportion value.
The present invention also provides a kind of method of data sync, is used to realize the data sync between terminal and the server, said method comprising the steps of:
Frequency of utilization according to contact person in the communication log is that different contact persons are provided with the frequency grade;
Add to described frequency grade in the record clauses and subclauses of respective contacts in the address list as record entry;
After described record clauses and subclauses are modified, according to its corresponding frequency grade specified data synchronization policy, and carry out data sync according to described data synchronization strategy and operate: if change relates to highly active contact person, then initiate data sync at once, or point out the user whether to carry out data sync at once, manually initiate by the user; If change does not relate to highly active contact person, then do not point out the user to carry out data sync.
Wherein, the frequency grade is set, comprises:
According to self-defined or predefined time range, the frequency of utilization of contact person in the communication log is added up, and divide the frequency grade according to statistical value.
Wherein, described data synchronization strategy comprises:
Carry out immediately data sync, regularly carry out data sync, and address list in be modified clauses and subclauses change carry out data sync when reaching the preset proportion value.
The present invention also provides a kind of device of realizing data sync, comprising:
The data synchronization applications unit, be used for communication log contact person's frequency of utilization is carried out the division of frequency grade, and the frequency grade of dividing is increased in the address list as a record entry, revise the frequency grade of clauses and subclauses correspondence according to user in the address list, take corresponding data synchronization strategy, and the data synchronization strategy information of being taked of passing to obtained and transmitting element, wherein, described data synchronization strategy is: if change relates to highly active contact person, then initiate data sync at once, or point out the user whether to carry out data sync at once, manually initiate by the user; If change does not relate to highly active contact person, then do not point out the user to carry out data sync;
Information is obtained and transmitting element, is used to realize to need the data communication between the synchronous equipment;
When the data clauses and subclauses were revised, the corresponding synchronous strategy was transferred according to described frequency grade in described data synchronization applications unit, and sent to described information and obtain and transmitting element, and described information is obtained with transmitting element and sent described data synchronization strategy to the synchronous equipment of need.
Wherein, described device also comprises:
The communication statistic information analytic unit is used for communication log contact person's frequency of utilization is added up, and statistical value is passed to the data synchronization applications unit.
The present invention also provides a kind of realization data synchronization system, comprising:
User side to replying and Data Update from the distolateral message of server of receiving, can be initiated data sync;
Server end to replying and Data Update from the distolateral message of user of receiving, can be initiated data sync; It is characterized in that described system also comprises:
The data synchronization applications unit, can be arranged at described server end or user side, be used for communication log contact person's frequency of utilization is data clauses and subclauses configuration frequency grade, and the frequency grade of dividing is increased in the address list as a record entry, can revise the frequency grade of clauses and subclauses correspondence according to user in the address list, take corresponding data synchronization strategy, and the data synchronization strategy information of being taked of passing to obtained and transmitting element, wherein, described data synchronization strategy is: if change relates to highly active contact person, then initiate data sync at once, or point out the user whether to carry out data sync at once, manually initiate by the user; If change does not relate to highly active contact person, then do not point out the user to carry out data sync;
After the data clauses and subclauses are revised, the corresponding synchronous strategy is transferred according to described frequency grade in described data synchronization applications unit, and send to server by the communication unit in the user side, or sending to user side by the communication unit in the server, the user side or the server that receive described data synchronization strategy carry out the data sync operation according to the data synchronization strategy of formulating.
Wherein, when described data synchronization applications unit placed user side, data synchronization request was initiated by user side; When described data synchronization applications unit placed server end, data synchronization request was initiated by server end.
Wherein, described system also comprises:
The communication statistic information analytic unit is used for communication log contact person's frequency of utilization is added up, and statistical value is passed to the data synchronization applications unit.
The present invention divides the frequency grade according to frequency of utilization, and the frequency grade is increased in the address list as a record entry, when in the address list record entry except that the frequency grade, when having data to be modified, according to the frequency grade that is modified the clauses and subclauses correspondence, whether to carry out data sync by system's decision or by the system prompt user, reach and when carry out data sync, can make the data modification of high its record entry of contact person of frequency of utilization, data sync can in time be carried out, the data modification of its record entry of contact person that frequency of utilization is low, data sync can regularly or regularly be carried out, therefore, the present invention has realized the data modification of high its record entry of contact person of frequency of utilization is in time carried out data sync, the situation of also having avoided simultaneously frequently carrying out data sync because of the data modification of low its record entry of contact person of frequency of utilization takes place, reached automatic, in time initiate the purpose of data sync, reduced the trouble that artificial tracking address list changing condition is initiated data sync.
Description of drawings
Fig. 1 is a SyncML data synchronization process schematic diagram;
Fig. 2 realizes the device schematic diagram of data sync for the present invention;
Fig. 3 realizes the data synchronization system schematic diagram for the present invention.
Embodiment
Below, describe the present invention in conjunction with the accompanying drawings.
The invention provides a kind of method of data sync, but be used to realize the data sync between the communication equipment, described method comprises: for the data clauses and subclauses frequency grade is set according to frequency of utilization, and is the different corresponding surely data synchronization strategy of frequency social estate system; After described data clauses and subclauses are revised, take corresponding data synchronization strategy to carry out the data sync operation according to its corresponding frequency grade.
According to the SYNCML synchronous protocol, data sync generally has seven kinds of modes, is respectively:
Bi-directional synchronization: expression client and server end both sides give the other side renewal data sync separately;
Slow synchronously: bi-directional synchronization a kind of, client and server end all send to the other side to all data of oneself, carry out man-to-man more synchronously, take longer;
The client single channel is synchronous: client sends to server end to Data Update, and service end does not send more new data;
Client refreshes is synchronous: client sends to server end to whole data, replaces all data of server end;
The server end single channel is synchronous: server end is delivered to client to Data Update, and client does not send data;
Server end refreshes synchronously: server end sends to client to whole data, all data of instead of client;
The service end notice is synchronous: server end informs that client will begin the synchronous of certain particular type with service end;
The data format that carries out data sync is generally:
Vcard:IETF organizes definition, is used in network and terminal room synchronous communication record information;
Vcalendar:IETF organizes definition, is used in information such as network and the synchronous schedules of terminal room;
The definition of DataObjEmail:OMA SyncML DS working group is used in network and the synchronous Email information of terminal room;
The definition of DataObjFile:OMA SyncML DS working group is used in network and terminal room synchronous documents information;
The definition of DataObjFolder:OMA SyncML DS working group is used in network and terminal room synchronization folder information.
User side is equipment such as mobile phone, PC or PDA normally, the communications records function is all arranged on it, for example write down the information such as message, time of telephone number that the terminal incoming call breathes out, exhalation time information, the transmitting-receiving of record terminal, the record of the communications records situation between these recording users and other users is called as communication log, the phone directory of user terminal storage is called as address list, the respective record item design clauses and subclauses of each the contact person's correspondence in the address list, for example comprise a plurality of record entries such as contact person, telephone number in each clauses and subclauses; User terminal is supported data synchronizing function, communications records function;
When method of the present invention is used for above-mentioned network and terminal room synchronous:
Frequency of utilization according to contact person in the communication log is that different contact persons are provided with the frequency grade; Be added to described frequency grade in the record clauses and subclauses of respective contacts in the address list as record entry; After described record clauses and subclauses are modified,, and carry out data sync according to described data synchronization strategy and operate according to its corresponding frequency grade specified data synchronization policy.
As shown in Figure 2, be the device 10 of realization data sync of the present invention, it comprises that data synchronization applications unit 11 and information obtains and transmitting element 12;
Data synchronization applications unit 11, be used for communication log contact person's frequency of utilization is carried out the division of frequency grade, and the frequency grade of dividing is increased in the address list as a record entry, as shown in table 3, the frequency grade of clauses and subclauses correspondence is revised in the data synchronization applications unit according to user in the address list, take corresponding data synchronization strategy, and the data synchronization strategy information of being taked of passing to is obtained and transmitting element 12;
Information is obtained and transmitting element 12, is used to realize and the data communication of user side and server end, obtain user side or server end address list, and the data synchronization strategy that data synchronization applications unit 11 is taked pass to user side and server end;
When the data clauses and subclauses were revised, the corresponding synchronous strategy was transferred according to described frequency grade in described data synchronization applications unit, and sent to described information and obtain and transmitting element, and described information is obtained with transmitting element and sent described data synchronization strategy to the synchronous equipment of need;
Wherein, described data synchronization unit 10 also comprises:
Communication statistic information analytic unit 13 is used for communication log contact person's frequency of utilization is added up, and statistical value is passed to data synchronization applications unit 11.
As shown in Figure 3, the present invention also provides a kind of realization data synchronization system 20, comprising:
Data synchronization applications unit 11, can be arranged at described server end or user side, be used for communication log contact person's frequency of utilization is carried out the division of frequency grade, and the frequency grade of dividing is increased in the address list as a record entry, can revise the frequency grade of clauses and subclauses correspondence according to user in the address list, take corresponding data synchronization strategy, and the data synchronization strategy information of being taked of passing to is obtained and transmitting element;
After the data clauses and subclauses are revised, the corresponding synchronous strategy is transferred according to described frequency grade in described data synchronization applications unit 11, and send to server 22 by the communication unit in the user side 21 211, or sending to user side 21 by the communication unit in the server 22 221, the user side 21 or the server 22 that receive described data synchronization strategy carry out the data sync operation according to described data synchronization strategy;
After user side 21 and server 22 ends were received the data synchronization strategy that information acquisition unit and transmitting element 12 send, user side 21 and server 22 ends were carried out corresponding action according to described data synchronization strategy;
Wherein, when described data synchronization applications unit 11 placed user side 21, data sync was initiated to be carried out by user side 21; When described data synchronization applications unit 11 placed server end 22, data sync was initiated to be carried out by server end 22;
Described system also comprises:
Communication statistic information analytic unit 13 is used for communication log contact person's frequency of utilization is added up, and statistical value is sent to data synchronization applications unit 11.
Embodiment 1
Present embodiment is: when data sync should unit 11 places user side 21, realize that the method for data sync is specific as follows:
Information is obtained with transmitting element 12 mutual with the communications records module in the user side 21, obtains user side address list and communication log;
Data synchronization applications unit 11 is according to the frequency of utilization of contact person in the communication log, for example, certain telephone number often often is sent out number of times of short message etc. by the number of times of incoming call, certain telephone number, divide the frequency grade, described frequency grade is increased in the address list as a record entry, as shown in table 3, corresponding data synchronization strategy is taked according to the frequency grade of user to the modification clauses and subclauses correspondence of address list in data synchronization applications unit 11;
Wherein, can also increase a communication statistic information analytic unit 13, be used for the frequency of utilization of data clauses and subclauses is added up, and statistical value is passed to the data synchronization applications unit;
Can be in User Defined or predefined certain time scope, communication statistic information analytic unit 13, the statistics user terminal uses the number of times of communication log project,, for example adds up talk times, interactive information number of times (short message, multimedia message, Email etc.) that is;
Data synchronization applications unit 11 increases by one in the address book data storehouse that user side is safeguarded, it is the corresponding contact person's of each phone book entries usage frequency grade, the field name of this usage frequency grade correspondence is not limit, usage frequency grade in the present embodiment for example, also can represent, as numeral, character, Boolean etc. with the data format of not limitting arbitrarily;
Table 3 is enumerated one according to the amended address list of the present invention, i.e. the address book data storehouse of data synchronization applications unit maintenance; Wherein, the frequency grade in round figures, the corresponding artificial high activity of contact of 1 expression, the corresponding artificial low activity of contact of 0 expression;
Table 3 address book data storehouse
| LUID | Data | The |
| 11 | BEGIN：VCARD VERSION：2.1 FN；ENCODING＝QUOTED-PRINTABLE；charSET＝UTF-8：zsan TEL；CELL：13412345678 END：VCARD | 1 |
| 22 | BEGIN：VCARD VERSION：2.1 FN；ENCODING＝QUOTED-PRINTABLE；charSET＝UTF-8：lsi | 0 |
[0105]
| TEL；HOME：63041234 END：VCARD | ||
| 33 | BEGIN：VCARD VERSION：2.1 FN；ENCODING＝QUOTED-PRINTABLE；charSET＝UTF-8：wwu TEL；WORK：82236789 END：VCARD | 1 |
The user is during by the clauses and subclauses in the user side change address list, the change daily record of data synchronization applications unit 11 record address lists, the value of preserving the frequency class parameter of the address list clauses and subclauses of revising in the daily record;
Data synchronization applications unit 11 is according to whether relating to highly active contact person in the address list clauses and subclauses of revising, take different synchronization policies, for example: if change relates to highly active contact person, then can initiate data sync at once, also can point out the user whether to carry out data sync at once, manually initiate by the user; If change does not relate to highly active contact person, then do not point out the user to carry out data sync, can be after a while by the user initiate by hand, periodic data synchronously, initiate data sync etc. when the modification of address list record entry reaches the preset proportion value;
If carry out data synchronization strategy, initiate data sync by user side 21.
As seen, in the present invention contact person's in the communication log the frequency of utilization except that the frequency grade, when having data to be modified, according to the frequency grade that is modified the clauses and subclauses correspondence, whether to carry out data sync by system's decision or by the system prompt user, reach and when carry out data sync, can make the data modification of high its record entry of contact person of frequency of utilization, data sync can in time be carried out, the data modification of its record entry of contact person that frequency of utilization is low, data sync can regularly or regularly be carried out, therefore, the present invention has realized the data modification of high its record entry of contact person of frequency of utilization is in time carried out data sync, the situation of also having avoided simultaneously frequently carrying out data sync because of the data modification of low its record entry of contact person of frequency of utilization takes place, reached automatic, in time initiate the purpose of data sync, reduced the trouble that artificial tracking address list changing condition is initiated data sync.
Embodiment 2
This enforcement difference from Example 1 is: data sync should place server end 22 in unit 11, information is obtained with transmitting element 12 mutual with the communications records module in the server end 22, obtain user side address list and communication daily record, the initiation of data sync is carried out by server end, the method of its data sync and embodiment 1 are identical, no longer are repeated in this description at this.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the method for a data sync is used to realize the data sync between terminal and the server, it is characterized in that, said method comprising the steps of:
Frequency of utilization according to contact person in the communication log is that different contact persons are provided with the frequency grade;
Add to described frequency grade in the record clauses and subclauses of respective contacts in the address list as record entry;
After described record clauses and subclauses are modified, according to its corresponding frequency grade specified data synchronization policy, and carry out data sync according to described data synchronization strategy and operate: if change relates to highly active contact person, then initiate data sync at once, or point out the user whether to carry out data sync at once, manually initiate by the user; If change does not relate to highly active contact person, then do not point out the user to carry out data sync.
2. method according to claim 1 is characterized in that, the described frequency grade that is provided with comprises:
According to self-defining time range, the frequency of utilization of contact person in the communication log is added up, and divide the frequency grade according to statistical value.
3. method according to claim 1 is characterized in that, does not describedly point out the user to carry out also comprising after the data sync:
Regularly carry out data sync, and any one operation in the data sync is carried out in the change that is modified clauses and subclauses in the address list when reaching the preset proportion value.
4. a device of realizing data sync is characterized in that, comprising:
The data synchronization applications unit, be used for communication log contact person's frequency of utilization is carried out the division of frequency grade, and the frequency grade of dividing is increased in the address list as a record entry, revise the frequency grade of clauses and subclauses correspondence according to user in the address list, take corresponding data synchronization strategy, and the data synchronization strategy information of being taked of passing to obtained and transmitting element, wherein, described data synchronization strategy is: if change relates to highly active contact person, then initiate data sync at once, or point out the user whether to carry out data sync at once, manually initiate by the user; If change does not relate to highly active contact person, then do not point out the user to carry out data sync;
Information is obtained and transmitting element, is used to realize to need the data communication between the synchronous equipment;
When the data clauses and subclauses were revised, the corresponding synchronous strategy was transferred according to described frequency grade in described data synchronization applications unit, and sent to described information and obtain and transmitting element, and described information is obtained with transmitting element and sent described data synchronization strategy to the synchronous equipment of need.
5. device according to claim 4 is characterized in that, described device also comprises:
The communication statistic information analytic unit is used for communication log contact person's frequency of utilization is added up, and statistical value is passed to the data synchronization applications unit.
6. realize data synchronization system for one kind, comprising:
User side to replying and Data Update from the distolateral message of server of receiving, can be initiated data sync;
Server end to replying and Data Update from the distolateral message of user of receiving, can be initiated data sync; It is characterized in that described system also comprises:
The data synchronization applications unit, can be arranged at described server end or user side, be used for communication log contact person's frequency of utilization is data clauses and subclauses configuration frequency grade, and the frequency grade of dividing is increased in the address list as a record entry, can revise the frequency grade of clauses and subclauses correspondence according to user in the address list, take corresponding data synchronization strategy, and the data synchronization strategy information of being taked of passing to obtained and transmitting element, wherein, described data synchronization strategy is: if change relates to highly active contact person, then initiate data sync at once, or point out the user whether to carry out data sync at once, manually initiate by the user; If change does not relate to highly active contact person, then do not point out the user to carry out data sync;
After the data clauses and subclauses are revised, the corresponding synchronous strategy is transferred according to described frequency grade in described data synchronization applications unit, and send to server by the communication unit in the user side, or sending to user side by the communication unit in the server, the user side or the server that receive described data synchronization strategy carry out the data sync operation according to the data synchronization strategy of formulating.
7. system according to claim 6 is characterized in that, when described data synchronization applications unit placed user side, data synchronization request was initiated by user side; When described data synchronization applications unit placed server end, data synchronization request was initiated by server end.
8. system according to claim 7 is characterized in that, described system also comprises:
The communication statistic information analytic unit is used for communication log contact person's frequency of utilization is added up, and statistical value is passed to the data synchronization applications unit.
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| US20130046732A1 (en) * | 2011-08-17 | 2013-02-21 | Hsin-Ti Chueh | Data synchronization management methods and systems |
| US20130191451A1 (en) * | 2012-01-19 | 2013-07-25 | Microsoft Corporation | Presence-based Synchronization |
| CN104469704A (en) * | 2013-09-17 | 2015-03-25 | 阿里巴巴集团控股有限公司 | Method, apparatus and system for updating communication information |
| CN105100350B (en) * | 2015-05-22 | 2019-02-15 | 努比亚技术有限公司 | A kind of method and device according to connection frequency management contact person |
| CN106394621B (en) * | 2016-09-27 | 2018-08-28 | 株洲中车时代电气股份有限公司 | A kind of train-installed data transmission method and system |
| CN106569917B (en) * | 2016-11-07 | 2020-06-16 | Oppo广东移动通信有限公司 | Data backup method and mobile terminal |
| CN110062029A (en) * | 2019-03-21 | 2019-07-26 | 深圳壹账通智能科技有限公司 | Change data synchronous method, apparatus, computer equipment and computer storage medium |
| CN110191223B (en) * | 2019-04-26 | 2021-07-16 | 华为技术有限公司 | Method for adding mail contact and electronic equipment |
| CN112182100B (en) * | 2020-09-22 | 2022-11-08 | 烽火通信科技股份有限公司 | Cloud management platform state data synchronization method and system |
| CN112765187A (en) * | 2020-12-30 | 2021-05-07 | 北京懿医云科技有限公司 | Commodity data synchronization method and commodity data transmission system |
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| CN101155018A (en) | 2008-04-02 |
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