CN106230914B - A kind of electronic whiteboard data-sharing systems based on subscription information publication - Google Patents
A kind of electronic whiteboard data-sharing systems based on subscription information publication Download PDFInfo
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- CN106230914B CN106230914B CN201610593086.2A CN201610593086A CN106230914B CN 106230914 B CN106230914 B CN 106230914B CN 201610593086 A CN201610593086 A CN 201610593086A CN 106230914 B CN106230914 B CN 106230914B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/148—Migration or transfer of sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/131—Protocols for games, networked simulations or virtual reality
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- Information Transfer Between Computers (AREA)
Abstract
The present invention provides a kind of electronic whiteboard data-sharing systems based on subscription information publication, by the data communication connection between each data sharing device in system, while carrying out subscribing to the electronic content data synchronization of issue mechanism between different data shared device, distributed backup is carried out to electronic whiteboard content-data also in different data shared device to store, once there is the situation of operating status exception in the data sharing device as information publisher, its corresponding each information subscribing person then will start the corresponding allocation schedule mechanism for subscribing to information publisher and information subscribing person in type of theme, other each normal information subscribing persons of operating status by accordingly subscribing to type of theme determine new proxy information publisher according to the principle for subscribing to highest priority, on behalf of the electronic whiteboard content-data for executing corresponding subscription type of theme Release tasks reduce the probability of electronic whiteboard data sharing service interruption, improve system and provide the fluency and stability of information sharing service.
Description
Technical field
The present invention relates to fields of communication technology and network english teaching technical field, in particular to a kind of to be based on subscription information
The electronic whiteboard data-sharing systems of publication.
Background technique
Three electronic whiteboards are widely used in the interactive system of education, teleconference etc., after installing related software, realize white
Functions such as writing, drawing, demonstration courseware, annotation on plate, and by internet technique, all kinds of communication terminal devices (including
Terminal, mobile phone terminal, tablet computer etc.) data information on electronic whiteboard can be obtained in real time, it realizes and electricity
Real-time information interaction between sub- blank is shared, is applied to carry out the application services business such as internet teaching, Web conference.
Currently, the data communication interaction between electronic whiteboard and communication terminal device, mainly by establishing data relay clothes
Be engaged in terminal of the device as interaction data, communicated respectively with electronic whiteboard and communication terminal device, execution electronic whiteboard with communicate
The transfer of interaction shared information sends operation between terminal device；However, once data relay server breaks down or work
Abnormal conditions, will lead to that the information exchange between electronic whiteboard and communication terminal device is shared to be interrupted, and cannot be in communication with each other,
Situations such as to cause internet teaching, Web conference that can not continue, system is caused to provide the stream of application service business
Smooth degree and stability are affected.
Summary of the invention
For the above-mentioned deficiency of the prior art, the purpose of the present invention is to provide a kind of electronics based on subscription information publication
Whiteboard data shared system, to solve to realize the electronic whiteboard between more equipment dependent on data relay server in the prior art
The problems such as fluency and bad stability of data sharing service, promotes electronic whiteboard data-sharing systems and provides information sharing clothes
The fluency and stability of business.
In order to solve the above technical problems, present invention employs the following technical solutions: it is a kind of based on subscription information publication
Electronic whiteboard data-sharing systems, including several data sharing devices pass through internet between each data sharing device
Data communication connection is mutually established, each data sharing device can be set as one or more letters for subscribing to type of theme
Publisher is ceased, and can become the corresponding information for subscribing to type of theme and the subscription type of theme for pulling subscription different and order
Reader；Each data sharing device all has subscription data storage area, for storing subscription type of theme that it externally issues
The electronic whiteboard content-data of electronic whiteboard content-data or/and its subscription type of theme subscribed to；
Each data sharing device as information publisher, which is used to receive by internet, comes from other data sharings
The information subscribing request of type of theme is subscribed in the application that carries of equipment, and judges the application carried in the information subscribing request
Subscribe to whether type of theme is the subscription type of theme itself issued, if so, being subscribed to current institute in data storage area
Whole electronic whiteboard content-datas of the corresponding subscription type of theme of storage are sent to the data for submitting the information subscribing request
Shared device, and subscription type of theme pairing corresponding with the data sharing device foundation of the information subscribing request is submitted is closed
System；It is also used to whenever generating the electronic whiteboard content-data of increment in the corresponding subscription type of theme in its publication, by mutual
The electronic whiteboard content-data of the increment is distributed to and establishes its corresponding for subscribing to type of theme pairing relationship therewith by networking network
Its data sharing device；
Each data sharing device applies for that the information subscribing for subscribing to type of theme is asked by sending to carry to internet
Become the corresponding information subscribing person for subscribing to type of theme after asking and being responded, with the corresponding information publisher for subscribing to type of theme
Corresponding subscription type of theme pairing relationship is established, and establishes itself conduct according to presetting subscription priority rule and accordingly orders
The subscription priority of the information subscribing person of type of theme is read, electricity transmitted by the corresponding information publisher for subscribing to type of theme is received
Sub- blank content-data storage is in subscribing to data storage area；Each data sharing device as information subscribing person is also used to lead to
Crossing internet communication, the operating status for subscribing to the information publisher of type of theme pairing relationship is established in monitoring with itself in real time
It is whether normal, when monitoring to establish the operating status exception for subscribing to the information publisher of type of theme pairing relationship with itself,
It is then communicated by internet with the corresponding other each information subscribing persons for subscribing to type of theme, judgement is currently subscribed to from corresponding
Whether has highest subscription priority among the normal information subscribing person of each operating status of type of theme, if so, actively
It is switching to the corresponding proxy information publisher for subscribing to type of theme, on behalf of in the electronic whiteboard for executing corresponding subscription type of theme
Hold data publication duties.
In the above-mentioned electronic whiteboard data-sharing systems based on subscription information publication, preferably, the data are total
Enjoying equipment includes subscribing to data storage area, data communication module, list scheduling module, issuing subject setup module, release processing
Module subscribes to processing module and monitoring module；The subscription data storage area is for storing its subscription theme class externally issued
The electronic whiteboard content-data of the electronic whiteboard content-data of type or/and its subscription type of theme subscribed to；
The EIC equipment identification code of data sharing device where the data communication module record has it, for connecting internet
Network is established data communication with other data sharing devices by internet and is connect, and sends to other data sharing devices
The EIC equipment identification code of its own record is carried when information together；
The list scheduling module for recording issuing subject list and subscribing to topic list, use by the issuing subject list
The type of theme identification code for the subscription type of theme that data sharing device where recording it is externally issued, the subscription theme column
The type of theme identification code of type of theme, list scheduling module are subscribed to ordered by data sharing device where table is used to record it
Subscription master for receiving the issuing subject dispatch command for carrying type of theme identification code He carrying type of theme identification code
Dispatch command is inscribed, the type of theme identification code carried in issuing subject dispatch command is added in issuing subject list, will be ordered
The type of theme identification code carried in theme dispatch command is read to be added in subscription topic list；
The issuing subject setup module is sent for the subscription type of theme issued outside to be arranged, and to list scheduling module
The issuing subject dispatch command for carrying the corresponding type of theme identification code for subscribing to type of theme, so that accordingly subscribing to type of theme
Type of theme identification code be added in issuing subject list, become the corresponding information publisher for subscribing to type of theme；
It is directed to each type of theme identification code in issuing subject list in the release processing module and is provided with one
Corresponding issuing subject type matches list, subscribes to theme class for establishing in the subscription type of theme by each publication with itself
The EIC equipment identification code of the data sharing device as information subscribing person of type pairing relationship is recorded in corresponding type of theme identification code
Issuing subject type pairing list in；It is also used to receive the carrying from other data sharing devices by data communication module
There is application to subscribe to the information subscribing request of type of theme, and judges that theme class is subscribed in the application carried in the information subscribing request
Whether the type of theme identification code of type is in the issuing subject list itself recorded, if so, will subscribe in data storage area
Whole electronic whiteboard content-datas of currently stored corresponding subscription type of theme, which are sent to, submits the information subscribing request
Data sharing device, and subscription type of theme corresponding with the data sharing device foundation of information subscribing request is submitted is matched
To relationship, the EIC equipment identification code of corresponding data shared device is recorded in the corresponding issuing subject class of corresponding type of theme identification code
Type matches in list；It is also used to whenever the electronic whiteboard content-data for generating increment in the corresponding subscription type of theme issued
When, the electronic whiteboard content-data of the increment is distributed to by data communication module and establishes corresponding subscription type of theme therewith
Other data sharing devices of pairing relationship；
It is provided with a subscription type of theme pairing list in the subscription processing module, is subscribed to for that will be established with itself
EIC equipment identification code in each subscription type of theme of type of theme pairing relationship as the data sharing device of information publisher
It is recorded in and subscribes in type of theme pairing list；It is also used to externally send by data communication module and carries application subscription theme
The information subscribing of type is requested, and is sent after being responded to list scheduling module and carried the corresponding master for subscribing to type of theme
The subscription theme dispatch command of type identification code is inscribed, so that the type of theme identification code for accordingly subscribing to type of theme is added to subscription
In topic list, the corresponding information subscribing person for subscribing to type of theme is become, and issue with the corresponding information for subscribing to type of theme
Person establishes corresponding subscription type of theme pairing relationship, and the equipment as the data sharing device of the information publisher is identified
Code, which is recorded in, to be subscribed in type of theme pairing list, and is established itself conduct according to presetting subscription priority rule and accordingly ordered
The subscription priority of the information subscribing person of type of theme is read, and the corresponding letter for subscribing to type of theme is received by data communication module
Electronic whiteboard content-data storage transmitted by publisher is ceased in subscribing to data storage area；
The monitoring module matches each equipment recorded in list with subscription type of theme respectively by data module
Data sharing device real time communication corresponding to identification code, monitoring establishes with itself and subscribes to type of theme pairing relationship in real time
Whether the operating status of information publisher is normal, when the information publication for monitoring to establish subscription type of theme pairing relationship with itself
When the operating status exception of person, then pass through data communication module and other each information subscribing persons as corresponding subscription type of theme
The communication of data sharing device, judgement is currently from the corresponding normal information subscribing person of each operating status for subscribing to type of theme
Among whether have highest subscription priority, corresponding subscribe to type of theme if so, carrying to the transmission of list scheduling module
Type of theme identification code issuing subject dispatch command so that accordingly subscribe to type of theme type of theme identification code be added to
In issuing subject list, the corresponding proxy information publisher for subscribing to type of theme is become, by release processing module according to publication
The record of topic list executes the corresponding electronic whiteboard content-data release tasks for subscribing to type of theme.
Compared with the prior art, the invention has the following advantages: the present invention is based on the electronics that subscription information is issued
In whiteboard data shared system, connected by the data communication between each data sharing device in system, it is total in different data
While enjoying the electronic content data synchronization for carrying out subscribing to issue mechanism between equipment, also to electricity in different data shared device
Sub- blank content-data carries out distributed backup storage, once there is operation shape in the data sharing device as information publisher
The situation of state exception, corresponding each information subscribing person then will start information publisher and information in corresponding subscription type of theme
The allocation schedule mechanism of subscriber, by accordingly subscribing to other each normal information subscribing persons of operating status of type of theme according to ordering
The principle for readding highest priority determines new proxy information publisher, on behalf of the electronic whiteboard for executing corresponding subscription type of theme
Content-data release tasks just make in system servicing for the different electronic whiteboard data sharings for subscribing to type of theme as a result,
Normally to continue, the probability of electronic whiteboard data sharing service interruption is greatly reduced, very good solution is in the prior art
Realize that fluency and the stability of the electronic whiteboard data sharing service between more equipment are bad dependent on data relay server
The problems such as, it can effectively promote electronic whiteboard data-sharing systems and the fluency and stability of information sharing service are provided.
Detailed description of the invention
Fig. 1 is the system architecture schematic block diagram for the electronic whiteboard data-sharing systems issued the present invention is based on subscription information.
Fig. 2 is the modularization framework schematic diagram of data sharing device in electronic whiteboard data-sharing systems of the present invention.
Specific embodiment
Technical solution of the present invention is further illustrated with reference to the accompanying drawings and examples.
Conventionally, as realizing the electronic whiteboard data sharing between more equipment dependent on data relay server
Service will lead to electronic whiteboard and communication terminal device once data relay server breaks down or operation irregularity situation
Between information exchange it is shared be interrupted, influence the fluency and stabilization of the electronic whiteboard data sharing service between more equipment
Property.In view of this, the invention proposes a kind of electronic whiteboard data-sharing systems based on subscription information publication, which is directed to
Electronic whiteboard data sharing between distinct device uses distributed subscription issue mechanism, is directed to different subscription themes
The electronic whiteboard content-data of type, by between different data sharing devices according to the shared need of electronic whiteboard data
Foundation is asked to subscribe to type of theme pairing relationship, so that accordingly subscribing to the electronic whiteboard content-data of type of theme in different data
Distributed backup storage is realized in shared device, and combines information publisher and information subscribing person in each subscription type of theme
Allocation schedule mechanism improves electronics so that the probability that electronic whiteboard data sharing is interrupted in system is greatly reduced well
The fluency and stability of whiteboard data shared system offer information sharing service.
As shown in Figure 1, the present invention is based on the electronic whiteboard data-sharing systems of subscription information publication, including several data
Shared device is also possible to terminal, mobile phone terminal, plate wherein each data sharing device can be electronic whiteboard
Computer etc. has the electric terminal equipment of data processing and communication capacity；Pass through internet phase between each data sharing device
Data communication connection is mutually established, each data sharing device can set the information publication that type of theme is subscribed to as one
Person, and can pass through the different information subscribing person for becoming corresponding subscription type of theme and subscribing to type of theme that pulls subscription；
Each data sharing device all has subscription data storage area, and the electronics for storing the subscription type of theme that it is externally issued is white
The electronic whiteboard content-data of plate content-data or/and its subscription type of theme subscribed to.Wherein, each to be used as information publisher
Data sharing device be used for by internet receive from other data sharing devices carrying application subscription theme class
The information subscribing of type is requested, and judges that the application carried in the information subscribing request subscribes to whether type of theme is sent out by itself
The subscription type of theme of cloth, if so, being subscribed to the complete of corresponding subscription type of theme currently stored in data storage area
Portion's electronic whiteboard content-data is sent to the data sharing device for submitting the information subscribing request, and orders with the information is submitted
The data sharing device for readding request establishes corresponding subscription type of theme pairing relationship；Also, it is each as information publisher's
Data sharing device is also used to whenever the electronic whiteboard content-data for generating increment in the corresponding subscription type of theme in its publication
When, the electronic whiteboard content-data of the increment is distributed to by internet and establishes corresponding subscription type of theme pairing therewith
Other data sharing devices of relationship.And each data sharing device subscribes to theme by carrying application to internet transmission
The information subscribing of type becomes the corresponding information subscribing person for subscribing to type of theme after requesting and being responded, subscribe to theme with corresponding
The information publisher of type establishes corresponding subscription type of theme pairing relationship, and builds according to presetting subscription priority rule
Itself the subscription priority as the corresponding information subscribing person for subscribing to type of theme is found, the corresponding information for subscribing to type of theme is received
Electronic whiteboard content-data storage transmitted by publisher is in subscribing to data storage area；Meanwhile each data sharing being used as
Equipment is also used to communicate the information that monitoring in real time subscribes to type of theme pairing relationship with itself foundation by internet and issue
Whether the operating status of person is normal, when the operation for the information publisher for monitoring to establish subscription type of theme pairing relationship with itself
When abnormal state, then passes through internet and communicated with the corresponding other each information subscribing persons for subscribing to type of theme, judgement is current certainly
Whether have highest subscription priority among the corresponding normal information subscribing person of each operating status for subscribing to type of theme,
If so, being actively switching to the corresponding proxy information publisher for subscribing to type of theme, type of theme is accordingly subscribed on behalf of executing
Electronic whiteboard content-data release tasks.
Have following distribution the present invention is based on the electronic whiteboard data-sharing systems of subscription information publication as a result, to be total to
Enjoy mechanism: for the information publisher for subscribing to type of theme firstly, for one, when there is another data sharing device in system
Submit information subscribing request when applying to become a new information subscribing person, the information publisher's as the subscription type of theme
Data sharing device meeting subscribes to whether type of theme is certainly according to the application that the information subscribing request judgement received wherein carry
The subscription type of theme that body is issued, if not processed to it then, if so, the data sharing device as information publisher
The whole electronic whiteboard content-datas for then being subscribed to corresponding subscription type of theme currently stored in data storage area are sent
To the data sharing device for submitting the information subscribing request, realize the two in the electronic whiteboard content for accordingly subscribing to type of theme
Data for the first time in data are synchronous, and subscription corresponding with the data sharing device foundation of the information subscribing request is submitted is led
Inscribe type pairing relationship；At the same time, the data sharing device for submitting the information subscribing to request is becoming corresponding subscription theme class
When the information subscribing person of type, also itself can be established as corresponding and subscribes to type of theme according to presetting subscription priority rule
Information subscribing person subscription priority, the subscription priority rule can be according to subscription sequence first later determine subscribe to it is excellent
First grade is also possible to subscribe to priority, etc. according to the ID number of data sharing device in systems to determine, in a word can be
According to sequentially determining subscription priority defined in application demand under practical situations, the setting of the subscription priority, certainly
The allocation schedule mechanism of information publisher and information subscribing person in corresponding subscription type of theme are determined；Type of theme is subscribed to establishing
After pairing relationship, data sharing device as the corresponding breath publisher for subscribing to type of theme then can be corresponding whenever its publication
It, will be in the electronic whiteboard of the increment by internet when subscribing to the electronic whiteboard content-data for generating increment in type of theme
Hold data publication to the corresponding other data sharing devices for subscribing to type of theme pairing relationship are established therewith, so that as accordingly ordering
The each data sharing device for readding the breath subscriber of type of theme can realize synchronizing altogether for electronic whiteboard content-data in real time
It enjoys and is backed up storage, it is total in different data thus just to realize the corresponding electronic whiteboard content-data for subscribing to type of theme
Enjoy the real-time distributed backup storage in equipment；In this process, each as the corresponding information subscribing for subscribing to type of theme
The data sharing device of person by internet communicate monitoring in real time it is corresponding subscribe to type of theme information publisher (i.e. with
Information subscribing person establish subscribe to type of theme pairing relationship information publisher) operating status it is whether normal, realize it is this
The specific embodiment of monitoring has very much, such as actively can send state report to internet with fixed frequency from information publisher
Information is accused, if information subscribing person can normally receive the state report information from information publisher by internet,
Determine that corresponding information publisher working condition is normal, once information subscribing person is not received by by internet come self-information hair
The state report information of cloth person and duration are more than the default time limit, that is, can determine that corresponding information publisher working condition is abnormal,
In another example status enquiry actively can also be sent to its information publisher with fixed frequency by internet from information subscribing person
Message carries out state response by information publisher, if information subscribing person can obtain state response after sending status inquiry message,
Then determine that corresponding information publisher's working condition is normal, if being more than to preset the time limit not after information subscribing person transmission status inquiry message
State response is received, then can determine that corresponding information publisher working condition exception, etc.；And in system operation, such as
Once there is the operating statuses abnormal conditions such as suspension, crash, information publication in the information publisher that fruit accordingly subscribes to type of theme
Person can not then be further continued for sending electronic whiteboard content-data to the corresponding information subscribing person for subscribing to type of theme, but information is sent out at this time
The operating status abnormal conditions of cloth person can be corresponded to the data sharing device for subscribing to the information subscribing person of type of theme as it and be supervised
It measures, to start the allocation schedule mechanism of information publisher and information subscribing person in the subscription type of theme, each information is ordered
Reader can then be communicated by internet with the corresponding other each information subscribing persons for subscribing to type of theme, and judgement is currently from phase
It should subscribe among the normal information subscribing person of each operating status of type of theme and whether have highest subscription priority, and it is current
It can be actively switching to the corresponding proxy information publisher for subscribing to type of theme with the information subscribing person that highest subscribes to priority,
Theme is accordingly subscribed to before this due to being stored in the subscription data storage area of the data sharing device as proxy information publisher
Whole electronic whiteboard content-datas of type, therefore can be on behalf of the electronic whiteboard content-data for executing corresponding subscription type of theme
Release tasks, when have in system another data sharing device submit information subscribing request apply to become a new information subscribing
When person, the data sharing device as proxy information publisher just can be received to subscribe to response message and be requested, and determining
After stating the subscription type of theme that the application subscription type of theme carried in information subscribing request is issued for itself, by its subscription
It is sent to according to whole electronic whiteboard content-datas of corresponding subscription type of theme currently stored in memory block and submits the letter
The data sharing device for subscribing to request is ceased, and subscription corresponding with the data sharing device foundation of the information subscribing request is submitted
Type of theme pairing relationship, and when accordingly subscribing to the electronic whiteboard content-data for generating increment in type of theme, pass through interconnection
The electronic whiteboard content-data of the increment is distributed to by network establishes the other of corresponding subscription type of theme pairing relationship therewith
Data sharing device；If also there are the feelings of working condition exception again in the data sharing device as proxy information publisher
Condition, then can be again by accordingly subscribing to other each normal information subscribing persons of operating status of type of theme according to subscribing to priority most
High principle determines new proxy information publisher；Certainly, if accordingly subscribing to the raw information publisher's of type of theme
After data sharing device operating status restores normal, then the demand run according to system can be by the number of prime information publisher
Become the corresponding information publisher for subscribing to type of theme again according to shared device, the data sharing as proxy information publisher is set
The standby information subscribing person for being restored to accordingly subscribe to type of theme, can also be continued agency by proxy information publisher and execute electronics
Blank content-data release tasks, prime information publisher automatically become corresponding and subscribe to information subscribing person new in type of theme.
Electronic whiteboard data-sharing systems the present invention is based on subscription information publication are by each data sharing in system
Equipment implements Distributed sharing mechanism.For each data sharing device, when concrete application is implemented, in addition to needing
With subscribe to data storage area to store the subscription type of theme that it is externally issued electronic whiteboard content-data or/and its order
Except the electronic whiteboard content-data for the subscription type of theme read, the implementation of the Distributed sharing function of its own can use soft
Part program is realized, as shown in Fig. 2, its modularization framework includes data communication module, list scheduling module, issuing subject setting
Module, subscribes to processing module and monitoring module at release processing module.Wherein, data where data communication module record has it are total
It is logical to establish data by internet and other data sharing devices for connecting internet for the EIC equipment identification code for enjoying equipment
Letter connection, and carry its own EIC equipment identification code recorded together when sending information to other data sharing devices.List tune
For degree module for recording issuing subject list and subscribing to topic list, the issuing subject list is total for data where recording it
The type of theme identification code for the subscription type of theme that equipment is externally issued is enjoyed, the subscription topic list is for number where recording it
According to the type of theme identification code for subscribing to type of theme ordered by shared device, list scheduling module carries theme for receiving
The issuing subject dispatch command of type identification code and the subscription theme dispatch command for carrying type of theme identification code lead publication
The type of theme identification code carried in topic dispatch command is added in issuing subject list, is carried subscribing in theme dispatch command
Type of theme identification code be added to subscribe to topic list in.Issuing subject setup module is for being arranged the subscription theme issued outside
Type, and the issuing subject scheduling for carrying the corresponding type of theme identification code for subscribing to type of theme is sent to list scheduling module
Instruction becomes corresponding subscription so that the type of theme identification code for accordingly subscribing to type of theme is added in issuing subject list
The information publisher of type of theme；Each type of theme identification code in issuing subject list is directed in release processing module to set
It is equipped with a corresponding issuing subject type pairing list, is ordered for being established in the subscription type of theme by each publication with itself
The EIC equipment identification code for readding the data sharing device as information subscribing person of type of theme pairing relationship is recorded in corresponding theme class
In the issuing subject type pairing list of type identification code；It is also used to receive by data communication module and be set from other data sharings
The information subscribing request of type of theme is subscribed in the standby application that carries, and judges that the application carried in the information subscribing request is ordered
The type of theme identification code of type of theme is read whether in the issuing subject list itself recorded, if so, data will be subscribed to
Whole electronic whiteboard content-datas of currently stored corresponding subscription type of theme, which are sent to, in memory block submits the information
The data sharing device of request is subscribed to, and subscription corresponding with the data sharing device foundation of the information subscribing request is submitted is led
Type pairing relationship is inscribed, the EIC equipment identification code of corresponding data shared device is recorded in the corresponding hair of corresponding type of theme identification code
Cloth type of theme matches in list；It is also used to whenever the electronic whiteboard for generating increment in the corresponding subscription type of theme issued
When content-data, the electronic whiteboard content-data of the increment is distributed to by data communication module and establishes corresponding subscribe to therewith
Other data sharing devices of type of theme pairing relationship.It subscribes in processing module and is provided with a subscription type of theme paired row
Table, for by with itself establish number as information publisher in each subscription type of theme for subscribing to type of theme pairing relationship
It is recorded in and is subscribed in type of theme pairing list according to the EIC equipment identification code of shared device；It is also used to external by data communication module
It sends and carries the information subscribing request that type of theme is subscribed in application, and carried after being responded to the transmission of list scheduling module
There is the subscription theme dispatch command of the corresponding type of theme identification code for subscribing to type of theme, so that accordingly subscribing to the master of type of theme
Topic type identification code, which is added to, to be subscribed in topic list, becomes the corresponding information subscribing person for subscribing to type of theme, and with it is corresponding
The information publisher for subscribing to type of theme establishes corresponding subscription type of theme pairing relationship, will be as the information publisher's
The EIC equipment identification code of data sharing device, which is recorded in, to be subscribed in type of theme pairing list, and according to presetting subscription priority
Rule establishes itself the subscription priority as the corresponding information subscribing person for subscribing to type of theme, and is connect by data communication module
Electronic whiteboard content-data storage transmitted by the corresponding information publisher for subscribing to type of theme is received in subscribing to data storage area.
The monitoring module matches each the EIC equipment identification code institute recorded in list with subscription type of theme respectively by data module
Corresponding data sharing device real time communication, in real time monitoring are issued with the information for itself establishing subscription type of theme pairing relationship
Whether the operating status of person is normal, when the operation for the information publisher for monitoring to establish subscription type of theme pairing relationship with itself
When abnormal state, then pass through data communication module and other each information subscribing person data sharings as corresponding subscription type of theme
The communication of equipment, judgement currently among the corresponding normal information subscribing person of each operating status for subscribing to type of theme whether
Have highest subscription priority, carries the corresponding theme class for subscribing to type of theme if so, sending to list scheduling module
The issuing subject dispatch command of type identification code, so that the type of theme identification code for accordingly subscribing to type of theme is added to issuing subject
In list, the corresponding proxy information publisher for subscribing to type of theme is become, by release processing module according to issuing subject list
Record execute the corresponding electronic whiteboard content-data release tasks for subscribing to type of theme.Using this modularization framework, every number
Just it can be distinguish identification by the EIC equipment identification code of its own according to shared device, by issuing subject list and subscribe to theme
The subscription type of theme and ordered subscription type of theme that list records itself are issued, while being held by release processing module
The electronic whiteboard content-data release tasks of the issued subscription type of theme of row, execute ordering for subscription by subscribing to processing module
The data receiver management of type of theme is read, and monitors and executes by monitoring module in the subscription type of theme being operating abnormally
The allocation schedule mechanism of information publisher and information subscribing person.As long as each of system data sharing device is all made of this mould
Block framework, then the synthetic operation of whole system just can be good at implementing Distributed sharing mechanism, solve electronic whiteboard data
The fluency and stability problem of shared service.
Below by one embodiment, to be subject to further instruction to electronic whiteboard data-sharing systems of the invention.
For example, muti-piece electronic whiteboard and multiple terminals constitute electronic whiteboard data-sharing systems of the invention, it is each of these
A electronic whiteboard or terminal are used as a data sharing device in system, and distinct device issues different subscription themes
The electronic whiteboard content-data of type, such as electronic whiteboard 1 issue the electronic whiteboard content-data of " Chinese language " theme, electronic whiteboard
The electronic whiteboard content-data of 2 publication " mathematics " themes, terminal 3 issue the electronic whiteboard content number of " English " theme
According to.Each equipment can subscribe to relevant theme according to their needs, for example electronic whiteboard 3 subscribes to " Chinese language " and " mathematics " master
The electronic whiteboard content-data of topic, terminal 4 subscribe to the electronic whiteboard content-data of " English " and " Chinese language " theme.Pass through
The Distributed sharing protocol communication of each data sharing device in system, each data sharing device only can be received and be viewed certainly
The electronic whiteboard content-data of subscription type of theme ordered by oneself.The operating statuses such as occur breaking in a certain data sharing device
When abnormal conditions, other data sharing devices still can be with normal communication.When breaking such as electronic whiteboard 1, other data
Shared device still can normally issue the subscription type of theme itself issued to internet, and receive itself subscription
Subscribe to type of theme.The equipment for proposing new information subscribing request can not only receive the normal number from current operating conditions
According to the electronic whiteboard content-data of shared device, moreover it is possible to receive operating status by agency's publication of other equipment and set extremely
The electronic whiteboard content-data issued in a network before standby.After breaking such as electronic whiteboard 1, electronic whiteboard 5 proposes new letter
Breath subscribes to request, the electronic whiteboard content-data of " Chinese language " theme that pulled subscription, then due to the publication of electronic whiteboard 1 before
Data have shared to the subscription data storage area of its prime information subscriber device, and (information subscribing person here is electronic whiteboard
3 and terminal 4), electronic whiteboard 1 by its information subscribing person confirm broken string after, if presetting subscription priority is advised
Be then subscribe to priority from high to low according to the sequence arrangement of device numbering, then current operating conditions are normal and device numbering most
Data information subscriber shared device that is forward, subscribing to highest priority can automatically become the proxy information publication of " Chinese language " theme
(operating status is normal in " Chinese language " theme here and device numbering is subscribed near data information that is preceding, subscribing to highest priority by person
Person's shared device is electronic whiteboard 3), i.e. the proxy information publisher by electronic whiteboard 3 as " Chinese language " theme is main by " Chinese language "
The electronic whiteboard content-data of topic is sent to the electronic whiteboard 5 for proposing new information subscribing request.
It can be seen that in the electronic whiteboard data-sharing systems issued the present invention is based on subscription information, due to not adopting
With in the prior art rely on data relay server realize distinct device between electronic whiteboard data sharing transmission mode, but
By the data communication connection between each data sharing device in system, subscription hair is carried out between different data shared device
While the electronic content data of cloth mechanism is synchronous, also electronic whiteboard content-data is divided in different data shared device
The backup of cloth stores, once the situation of operating status exception occurs in the data sharing device as information publisher, corresponds to
Each information subscribing person then will start the corresponding allocation schedule machine for subscribing to information publisher and information subscribing person in type of theme
System, by accordingly subscribing to other each normal information subscribing persons of operating status of type of theme according to the principle for subscribing to highest priority
It determines new proxy information publisher, the electronic whiteboard content-data release tasks of type of theme is accordingly subscribed on behalf of execution,
Continue the service of the different electronic whiteboard data sharings for subscribing to type of theme in system normally, significantly
Reduce the probability of electronic whiteboard data sharing service interruption.Therefore, the present invention is based on the electronic whiteboard numbers of subscription information publication
The electronic whiteboard between more equipment is realized dependent on data relay server in the prior art according to shared system very good solution
The problems such as fluency and bad stability of data sharing service, can effectively promote electronic whiteboard data-sharing systems and provide letter
Cease the fluency and stability of shared service.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to reality
Example is applied to describe the invention in detail, those skilled in the art should understand that, it can be to technical side of the invention
Case is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered in the present invention
Scope of the claims in.
Claims (2)
1. a kind of electronic whiteboard data-sharing systems based on subscription information publication, which is characterized in that total including several data
Equipment is enjoyed, data communication is mutually established by internet between each data sharing device and is connected, each data sharing device
It can set as one or more information publishers for subscribing to type of theme, and can pass through different order that pull subscription
It reads type of theme and becomes the corresponding information subscribing person for subscribing to type of theme；Each data sharing device all has subscription data and deposits
Storage area, for storing the electronic whiteboard content-data or/and its subscription theme subscribed to of the subscription type of theme that it is externally issued
The electronic whiteboard content-data of type；
Each data sharing device as information publisher, which is used to receive by internet, comes from other data sharing devices
The application that carries subscribe to the information subscribing request of type of theme, and judge that the application carried in information subscribing request is subscribed to
Whether type of theme is the subscription type of theme itself issued, if so, being subscribed to currently stored in data storage area
Whole electronic whiteboard content-datas of corresponding subscription type of theme be sent to the data sharing for submitting information subscribing request
Equipment, and subscription type of theme pairing relationship corresponding with the data sharing device foundation of the information subscribing request is submitted；Also
For passing through internet whenever generating the electronic whiteboard content-data of increment in the corresponding subscription type of theme in its publication
The electronic whiteboard content-data of the increment is distributed to and establishes the corresponding other data for subscribing to type of theme pairing relationship therewith
Shared device；
Each data sharing device carries the information subscribing for applying subscribing to type of theme request simultaneously by sending to internet
Become the corresponding information subscribing person for subscribing to type of theme after being responded, is established with the corresponding information publisher for subscribing to type of theme
It is corresponding to subscribe to type of theme pairing relationship, and establish itself as corresponding according to presetting subscription priority rule and subscribe to master
The subscription priority of the information subscribing person of type is inscribed, it is white to receive electronics transmitted by the corresponding information publisher for subscribing to type of theme
Plate content-data storage is in subscribing to data storage area；Each data sharing device as information subscribing person is also used to by mutual
Connection network communication monitors the operating status for subscribing to the information publisher of type of theme pairing relationship is established with itself whether in real time
Normally, when monitoring to establish the operating status exception for subscribing to the information publisher of type of theme pairing relationship with itself, then lead to
It crosses internet to communicate with the corresponding other each information subscribing persons for subscribing to type of theme, judgement currently subscribes to theme from corresponding
Whether has highest subscription priority among the normal information subscribing person of each operating status of type, if so, actively switching
As the corresponding proxy information publisher for subscribing to type of theme, on behalf of the electronic whiteboard content number for executing corresponding subscription type of theme
According to release tasks.
2. the electronic whiteboard data-sharing systems according to claim 1 based on subscription information publication, which is characterized in that described
Data sharing device includes subscribing to data storage area, data communication module, list scheduling module, issuing subject setup module, hair
Cloth processing module subscribes to processing module and monitoring module；
It is described subscribe to data storage area be used to store the subscription type of theme that it externally issues electronic whiteboard content-data or/and
The electronic whiteboard content-data of its subscription type of theme subscribed to；
EIC equipment identification code of data sharing device leads to for connecting internet where the data communication module record has it
It crosses internet and establishes data communication with other data sharing devices and connect, and when sending information to other data sharing devices
The EIC equipment identification code of its own record is carried together；
The list scheduling module is for recording issuing subject list and subscribing to topic list, and the issuing subject list is for remembering
The type of theme identification code for the subscription type of theme that data sharing device where recording it is externally issued, the subscription topic list are used
The type of theme identification code of type of theme is subscribed to ordered by data sharing device where recording it, list scheduling module is used for
Reception carries the issuing subject dispatch command of type of theme identification code and carries the subscription theme tune of type of theme identification code
Degree instruction, the type of theme identification code carried in issuing subject dispatch command is added in issuing subject list, is led subscribing to
The type of theme identification code carried in topic dispatch command, which is added to, subscribes in topic list；
The issuing subject setup module sends to list scheduling module and carries for the subscription type of theme issued outside to be arranged
There is the issuing subject dispatch command of the corresponding type of theme identification code for subscribing to type of theme, so that accordingly subscribing to the master of type of theme
Topic type identification code is added in issuing subject list, becomes the corresponding information publisher for subscribing to type of theme；
It is directed to each type of theme identification code in issuing subject list in the release processing module and is provided with a correspondence
Issuing subject type match list, in the subscription type of theme by each publication with itself establish subscribe to type of theme match
The hair of corresponding type of theme identification code is recorded in the EIC equipment identification code of the data sharing device as information subscribing person of relationship
Cloth type of theme matches in list；It is also used to receive by data communication module and carries Shen from other data sharing devices
The information subscribing request of type of theme please be subscribe to, and judges that type of theme is subscribed in the application carried in the information subscribing request
Whether type of theme identification code is in the issuing subject list itself recorded, if so, will subscribe to current in data storage area
Whole electronic whiteboard content-datas of the corresponding subscription type of theme stored are sent to the number for submitting the information subscribing request
According to shared device, and subscription type of theme pairing corresponding with the data sharing device foundation of the information subscribing request is submitted is closed
The EIC equipment identification code of corresponding data shared device is recorded in the corresponding issuing subject type of corresponding type of theme identification code and matched by system
To in list；It is also used to whenever generating the electronic whiteboard content-data of increment in the corresponding subscription type of theme issued,
The electronic whiteboard content-data of the increment the corresponding type of theme of subscribing to of foundation therewith is distributed to by data communication module to match
To other data sharing devices of relationship；
It is provided with a subscription type of theme pairing list in the subscription processing module, subscribes to theme for that will establish with itself
It is recorded in each subscription type of theme of type pairing relationship as the EIC equipment identification code of the data sharing device of information publisher
In subscribing to type of theme pairing list；It is also used to externally send by data communication module and carries application subscription type of theme
Information subscribing request, and the theme class for carrying corresponding subscription type of theme is sent to list scheduling module after respond
The subscription theme dispatch command of type identification code, so that the type of theme identification code for accordingly subscribing to type of theme is added to subscription theme
In list, the corresponding information subscribing person for subscribing to type of theme is become, and build with the corresponding information publisher for subscribing to type of theme
Vertical corresponding subscription type of theme pairing relationship, the EIC equipment identification code as the data sharing device of the information publisher is remembered
Record establishes itself as corresponding according to presetting subscription priority rule and subscribes to master in subscribing to type of theme pairing list
The subscription priority of the information subscribing person of type is inscribed, and the corresponding information for subscribing to type of theme is received by data communication module and is sent out
Electronic whiteboard content-data storage transmitted by cloth person is in subscribing to data storage area；
The monitoring module matches each equipment recorded in list with subscription type of theme respectively by data module and identifies
Data sharing device real time communication corresponding to code, the information for subscribing to type of theme pairing relationship is established in monitoring with itself in real time
Whether the operating status of publisher is normal, when the information publisher's for monitoring to establish subscription type of theme pairing relationship with itself
When operating status exception, then pass through data communication module and other each information subscribing person data as corresponding subscription type of theme
The communication of shared device, judgement is currently among the corresponding normal information subscribing person of each operating status for subscribing to type of theme
Whether have highest subscription priority, carries the corresponding master for subscribing to type of theme if so, sending to list scheduling module
The issuing subject dispatch command of type identification code is inscribed, so that the type of theme identification code for accordingly subscribing to type of theme is added to publication
In topic list, the corresponding proxy information publisher for subscribing to type of theme is become, by release processing module according to issuing subject
The record of list executes the corresponding electronic whiteboard content-data release tasks for subscribing to type of theme.
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| CN109729154B (en) * | 2018-12-13 | 2021-10-15 | 四川省能源投资集团有限责任公司 | Simple message subscription and publishing service method based on controller |
| CN112333037B (en) * | 2019-08-05 | 2022-11-01 | 北京百度网讯科技有限公司 | Communication link self-detection method and system and automatic driving vehicle |
| CN114930279B (en) * | 2020-12-02 | 2024-06-14 | 广州视源电子科技股份有限公司 | Collaborative operation method, device, terminal and storage medium |
| CN113449234B (en) * | 2021-05-11 | 2022-10-11 | 中国人民解放军63729部队 | Method for multi-stage subscription and release of data |
| CN114125057B (en) * | 2022-01-26 | 2022-04-26 | 中科边缘智慧信息科技（苏州）有限公司 | Distributed data interaction method and device for multi-service center |
| CN114884987B (en) * | 2022-04-24 | 2024-03-29 | 青岛海信医疗设备股份有限公司 | Method, device and storage medium for acquiring equipment state information |
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