CN101247312B - Context perception information processing system and method in peer-to-peer mode - Google Patents
Context perception information processing system and method in peer-to-peer mode Download PDFInfo
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Abstract
The invention discloses a context sensing information processing system and method of equivalent mode. In the universal computing environment of equivalent mode, the context sensing information of the terminal is processed through a context database on each terminal, a data visit agent module, a present engine module and a management registration centre; the context sensing information share among terminals is realized through the sharing communication among the management registration centre, thereby realizing the context storage, inquiry and sharing of equivalent mode, to satisfy the requirement of the context sensing information process of equivalent mode. The invention reduces the expense of system communication and redundancy of system storage, and provides the performance of system.
Description
Technical field
The present invention relates to context processing technology field in the general calculation entironment, particularly relate to context-aware management of information and treatment system and the method shared in a kind of ad-hoc mode general calculation entironment.
Background technology
Be accompanied by calculating, communication and content mutually combine and computer is microminiaturized, Embedded development trend, computation schema is just towards general fit calculation focusing on people (Ubiquitous or PervasiveComputing) mode development.Under general calculation entironment; Calculate and communication capacity with ubiquity and be dissolved in the daily life environment; Information space and physical space will realize merging; People can fit various information and the service that ground free access environment provides in good time, and computer will disappear from people's sight, and people's attentiveness will revert to the task itself that will accomplish.
General calculation entironment is a kind of generally environment of interconnection.Interconnected between current common computer, various objects all pass through different modes and link to each other with other objects.Network environment under the general calculation entironment comprises various wireless networks, the Internet, telephone network, television network etc., also comprises the network of number of different types such as RFID network, wireless sensor network, GPS network.The automatic interconnection of general fit calculation network support isomerous environment and plurality of devices has adaptivity to the dynamic change of environment, and ubiquitous communication service is provided.
The popular research field of current general fit calculation comprises context-aware information processing etc.
Context-aware information comprises environmental informations such as time, position, scene, user profile such as facility information such as screen size, disposal ability and identity, operating habit, personal like, emotional state.Context-aware information relates to the context-aware information processing of many aspects such as context-aware information is obtained, context-aware information modeling, the application of context-aware information.
Context perception information processing system is divided into two kinds usually: hubbed mode and equity (Peer-to-peer) pattern.
Hubbed mode: context-aware information concentrates in the station server and handles.Representative system comprises Gaia, PACE, SOCAM and CoBrA.
Ad-hoc mode: context-aware information is distributed on user's the equipment and handles.Representative system comprises Context Toolkit and Confab.
The context perception information processing system of existing ad-hoc mode, Context Toolkit for example for the exploitation of context-aware applications provides unified development platform, has constructed the reusable support frame of discovering computing application.But the context perception information processing system of existing ad-hoc mode; Be not to register in registration center with the component level granularity; But each transducer with discover computing application and find registration center and registration through information broadcast; And this registration-inquiry mode will certainly increase the communication overhead of terminal room greatly along with the increase of terminal quantity, also can cause the excessive redundancy of transducer log-on message between terminal node in addition.
Summary of the invention
Problem to be solved by this invention is to provide a kind of context perception information processing system and method for ad-hoc mode, and it reduces system communication expense and the redundancy that system stores, and the performance of system is provided.
For realizing the context perception information processing system of a kind of ad-hoc mode that the object of the invention provides, comprise a plurality of terminals of forming general calculation entironment with ad-hoc mode;
Said terminal comprises context database, and the data access proxy module presents engine modules and management registration center, wherein:
Said context database is used to safeguard on the local terminal through the context semanteme of context-aware reasoning acquisition and the context-aware information of semantic relation;
Said data access proxy module is used to the context-aware message reference assembly is provided, and is the access interface of context database; Also be used for management registration center registration, realize registration through the management registration center of reciprocity multicast channel on other-end simultaneously in the local terminal; Registration content is the interface message of data access proxy module;
The said engine modules that appears; Be used for obtaining the interface message of registered data access proxy module through inquiry local management registration center; Again through said registered data access proxy module; Context-aware information in the context database is inquired about, and application-oriented demand of while is carried out context-aware information inquiry result and appeared;
Said management registration center is used for according to the search request that presents engine modules, the interface message of searching registered data access proxy module;
Wherein, Management registration center on each terminal on safeguarding this terminal the data access proxy module and appear the reciprocal process between the engine modules; Also communicate the data access proxy module remote login of realizing cross-terminal between the management registration center through different terminals; Make that the engine modules that appears on the local terminal can be through the inquiry in local management registration center; Realization is to the visit of the context database on the other-end, and then obtains the context-aware information data of whole network environment.
Said with ad-hoc mode composition general calculation entironment, be the general calculation entironment that Context Toolkit, Confab networking mode are formed.
For realizing that the object of the invention also provides a kind of context-aware information processing method of ad-hoc mode, comprises the following steps:
Steps A, in the general calculation entironment of ad-hoc mode, with the context-aware information stores in the context database at each terminal of general calculation entironment;
Step B, the data access proxy module on each terminal is in the management registration center registration of this locality; Said step B comprises the following steps:
Step B1, after starting terminal, the context management registration probe message of the management registration center at terminal through multicast surveyed the effective management registration center on the other-end that has started, and effectively managed registration centers with these and set up reciprocity multicast channel;
Step B2, the data access proxy module on the terminal utilizes contextual access to act on behalf of remote login message through said reciprocity multicast channel, and the management registration center on other-end realizes registration;
Step C; The application system at terminal is when carrying out the context-aware information inquiry; Through the interface message that the local management registration center of engine modules inquiry obtains registered data access proxy module that appears on the said terminal, obtain the context-aware information data in the corresponding context database through said registered data access proxy module again;
Wherein, Management registration center on each terminal on safeguarding this terminal the data access proxy module and appear the reciprocal process between the engine modules; Also communicate the data access proxy module remote login of realizing cross-terminal between the management registration center through different terminals; Make that the engine modules that appears on the local terminal can be through the inquiry in local management registration center; Realization is to the visit of the context database on the other-end, and then obtains the context-aware information data of whole network environment.
Said step C can comprise the following steps:
Step C1, the application system at terminal is sent context-aware information inquiring request message to presenting engine modules when carrying out the context-aware information inquiry;
Step C2 presents the interface message that engine modules is sent the registered data access proxy module of contextual access agents query information query to management registration center;
Step C3, management registration center feeds back the interface message of the data access proxy module of having registered through contextual access agents query feedback message to presenting engine modules;
Step C4 presents engine modules is transmitted application system to the data access proxy module according to the interface message in the feedback message context-aware information inquiring request message;
Step C5, the data access proxy module is visited corresponding context database;
Step C6, data access proxy module through context inquiry feedback message with the context-aware feedback information that inquires to presenting engine modules;
Step C7 presents engine modules and submits the context-aware information data that inquires to the application system at terminal.
Among the said step C7, the context-aware information data of said submission is to submit to the right form of name-value.
Said step C also can comprise the following steps:
Step C1 ', the application system at terminal is sent context-aware information inquiring request message to presenting engine modules when carrying out long-range context-aware information inquiry;
Step C2 ' presents engine modules is sent the registered data access proxy module of contextual access agents query information query to telemanagement registration center through local management registration center interface message;
Step C3 ', telemanagement registration center utilizes local management registration center through contextual access agents query feedback message, feeds back the interface message of the data access proxy module of having registered to presenting engine modules;
Step C4 ' presents engine modules is transmitted application system to the remote data access proxy module according to the interface message of the data access proxy module of having registered in the feedback message context-aware information inquiring request message;
Step C5 ', remote data access proxy module visit respective remote context database;
Step C6 ', the remote data access proxy module presents the context-aware feedback information that inquires in engine modules to this locality through context inquiry feedback message;
Step C7 ', this locality presents engine modules and submits the context-aware information data that inquires to the application system at terminal.
Beneficial effect of the present invention: the context perception information processing system of ad-hoc mode of the present invention and method, to the defective that the context perception information processing system of existing ad-hoc mode exists, between the management registration center at terminal, set up the broadcast channel of transmission information; Thereby realize the less information sharing of expense; And in the process of remote login, only relevant with contextual access proxy interface information, be directly proportional with terminal quantity; And it is irrelevant with context kind and quantity on the terminal; Therefore it is with respect to prior art, and it reduces the redundancy of system communication expense and system's storage, the performance of raising system.
Description of drawings
Fig. 1 is the context perception information processing system sketch map of ad-hoc mode of the present invention;
Fig. 2 is the context-aware information processing method sketch map of the embodiment of the invention one ad-hoc mode;
Fig. 3 is the context-aware information processing method sketch map of the embodiment of the invention two ad-hoc modes.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the context perception information processing system and the method for a kind of ad-hoc mode of the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The objective of the invention is distributed equity (Peer-to-Peer) the computing terminal environment in the general calculation entironment, realize context storage, the inquiry of ad-hoc mode and share, with the requirement of the context-aware information processing of satisfying ad-hoc mode.
Below in conjunction with accompanying drawing 1～3, execution mode of the present invention and implementation procedure are described.The context-aware information at terminal is through context database and data access proxy module on each terminal; Present engine modules and handle with management registration center, the context-aware information sharing between the terminal then realizes through the common share communication between the management registration center.
As shown in Figure 1, the context perception information processing system of ad-hoc mode of the present invention comprises a plurality of terminals 1 of forming general calculation entironment with ad-hoc mode.
System of the present invention, in general calculation entironment, all terminals 1 are with the ad-hoc mode networking, and the calculating of context-aware information and management are distributed on user's the equipment to be carried out, and discovers computing application request subscriber equipment and obtains related context knowledge.Saidly form general calculation entironment with ad-hoc mode and include but not limited to Context Toolkit, Confab networking mode.
Said terminal 1 comprises context database 11, and data access proxy module 12 presents engine modules 14 and management registration center 13.
Said context database 11 is used to safeguard through the context semanteme of context-aware reasoning acquisition and the context-aware information of semantic relation.
In the general calculation entironment of the networking of ad-hoc mode, all with the context data library storage, it is a kind of prior art to the context-aware information obtained.The present invention does not do special provision to the way of realization of context database 11, but as a kind of execution mode, embedded type database system commonly used all can construct context database of the present invention.
Said data access proxy module 12 is used to the context-aware message reference assembly is provided, and is the access interface of context database 11.
Data access proxy module 12 provides the query interface to the context knowledge in the database.Context database 11 can be designed as relational database.The data access proxy module is described the context query demand through sql like language.
The concrete difference difference that realizes because of operating system, data base management system and application system.For example, on the windows platform, adopt SQL Server data base management system, on the Linux platform, adopt the MySql data base management system; The JAVA application program need be carried out database access etc. through JDBC.But basic principle all is to visit through the sql like language fulfillment database.
The said engine modules 14 that appears is used for through said data access proxy module 12 the context-aware information in the context database 11 being inquired about, and application-oriented demand of while is carried out context-aware information inquiry result and appeared.
Among the present invention, present engine modules 14 and present interface module, transmit the context-aware information inquiring request of terminal 1 application system, bear the function that context-aware information inquiry result appears as the context perception information processing system of ad-hoc mode.
Said management registration center 13 is used for according to the search request that presents engine modules 14, the interface message of searching corresponding data access proxy module 12; Be used to simultaneously to realize that registration center between the terminal 1 finds each other and interconnects, the context-aware information data of accomplishing between the peer 1 is shared.
Specify the context-aware information processing method of ad-hoc mode of the present invention below, comprise the following steps:
Embodiment one, and is as shown in Figure 2.
Step S100, in the general calculation entironment of ad-hoc mode, with the context-aware information stores in the context database 11 at each terminal 1 of general calculation entironment;
In the general calculation entironment of the networking of ad-hoc mode, the context-aware information of being obtained is all stored with context database 11, it is a kind of prior art.Therefore describe in detail no longer one by one in embodiments of the present invention.
Step S200, data access proxy module 12 is in 13 registrations of management registration center;
Data access proxy module 12 is only in the registration of management registration center 13, just can be required to obtain context-aware management of information registration center 13 and 1 at other terminals are called.Therefore, the data access proxy module of having registered 12 in 13 management of the management registration center at each terminal 1 is the available contexts access agents on this terminal 1.
Before the application system at terminal 1 is sent the context-aware information inquiring request, accomplish the registration of data access proxy module 12 in management registration center 13 through contextual access proxy registration message AGENT_REGISTER; Registration content is actual to be the access interface of data access proxy module 12, calls for presenting engine modules 14.
Said contextual access proxy registration message is as shown in table 1.
Table 1 contextual access proxy registration message
Type: contextual access proxy registration message AGENT_REGISTER;
Length: message body byte number;
Terminal address: IP address of terminal;
Access end slogan: contextual access agency's process communication port.
Presenting engine modules 14 needs obtains the interface message in the data access proxy module 12 and passes through this proxy access context database.Presenting engine modules is the context data visitor, therefore need not register in management registration center 13, and just obtain the interface message at the data access proxy module 12 of management registration center 13 registrations.
What write down in the registration center is the interface message of data access proxy module 12, comprises terminal address and access end slogan.Present engine modules 14 inquiry and registration centers; Obtain the interface message of data access proxy module 12; Comprise terminal address and port numbers, can send the context query requests to data access proxy module 12 through the mode of network service, and then access context database 11.
Step S300; The application system at terminal 1 is when carrying out the context-aware information inquiry; Present the data access proxy module 12 that engine modules 14 visits have been registered, obtain the context-aware information data in the corresponding context database 11 through said data access proxy module 12.
But as a kind of execution mode, particularly, step S300 comprises the following steps:
Step S310, the application system at terminal 1 is sent context-aware information inquiring request message CONTEXT_REQUEST to presenting engine modules 14 when carrying out the context-aware information inquiry;
Said context-aware information inquiring request message is as shown in table 2, and it is actual to be that a plurality of context type or title are described.
Table 2 context-aware information inquiring request message
Type: context-aware information inquiring request message CONTEXT_REQUEST;
Length: message body byte number;
Context name n: the required context title of application system (type name), like LOCATION, TIME etc.;
Separator: be used to separate the context title, the present invention adopts ": ".
Step S320 presents engine modules 14 and sends the interface message that contextual access agents query message AGENT_QUERY inquires about corresponding data access proxy module 12 to management registration center 13;
Said contextual access agents query message AGENT_QUERY is as shown in table 3.
Table 3 contextual access agents query message
Type: access agent inquiry AGENT_QUERY;
Length: because contextual access agents query message is no message body message, so length is 0;
Message body: be sky.
Step S330, the interface message of the data access proxy module of having registered 12 that management registration center 13 is described in presenting engine modules 14 feedback step S100 through contextual access agents query feedback message AGENT_QUERY_R;
Said contextual access agents query feedback message AGENT_QUERY_R is as shown in table 4.
Table 4 contextual access agents query feedback message
Type: contextual access agents query feedback message AGENT_QUERY_R;
Length: message body byte number;
Terminal address: IP address of terminal;
Access end slogan: contextual access agency's process communication port.
Step S340 presents engine modules 14 to context-aware information inquiring request message from the interface message in the feedback message to data access proxy module 12 that transmit application system according to;
Context-aware information inquiry message is actual to be the context-aware information inquiring request message of transmitting among the step S300, so type of message is context-aware information inquiring request message CONTEXT_QUERY.
Step S700, the corresponding context database 11 of data access proxy module 12 visits;
Context database is a relational database, so the data access agency obtains and parsing context inquiry request message CONTEXT_QUERY, with semantic SQL (the Structured Query Language) query specification that is converted into context database of inquiry.
Step S350, data access proxy module 12 through context inquiry feedback message CONTEXT_QUERY_R with the context-aware feedback information that inquires to presenting engine modules 14;
Said context inquiry feedback message CONTEXT_QUERY_R is as shown in table 5.
Table 5 context inquiry feedback message
Type: context inquiry feedback message CONTEXT_QUERY_R;
Length: message body byte number;
Name n: the required context title of application system (type name), like LOCATION, TIME etc.;
Separator 1: be used to separate context title and context value, the present invention's employing "; ";
Value n: the corresponding value of the required context of application system;
Separator 2: it is right to be used to separate context name one value, and the present invention adopts ": ".
Step S360 presents engine modules 14 and submits the context-aware information data that inquires with the right form of name-value to the application system at terminal 1.
Embodiment two:
As shown in Figure 3; But as the another kind execution mode; The embodiment of the invention two realizes the context-aware information inquiry between the remote terminals, and the present invention implements context in the context-aware information processing method of two ad-hoc mode and shares and be structured on the resident context management basis at each terminal, and it is through the shared message of terminal room; Realize the remote login of data access proxy module 12, and then application system is obtained for the inquiry of context-aware information in the other-end on the completion terminal.As shown in Figure 2, described on second terminal application system and obtained the contextual process on first terminal through the context share and access.
In the present embodiment, only to describing, and identical step difference is repeated in this description one by one with embodiment one different step.
The context-aware information processing method of the ad-hoc mode of the embodiment of the invention two; After the starting terminal of the general calculation entironment of ad-hoc mode; The management registration center 13 at terminal is through the context management registration probe message REGCENTER_DETECT of multicast; Survey the effective management registration center 13 on the other-end started, and effectively manage registration centers 13 with these and set up reciprocity multicast channel.
After starting terminal; The management registration center 13 at terminal is through the context management registration probe message REGCENTER_DETECT of multicast; Survey the effective management registration center 13 on the other-end started; And effectively manage registration center 13 with these and set up reciprocity multicast channel, this is to realize the critical passage that context is shared between peer.
Said context management registration probe message REGCENTER_DETECT is as shown in table 6.
Table 6 context management registration probe message
Type: context management registration probe message REGCENTER_DETECT;
Length: because context management registration probe message is no message body message, so length is 0;
Message body: be sky.
Data access proxy module 12 on first terminal is in management registration center 13 registrations at this terminal; Simultaneously through said reciprocity multicast channel; Utilize contextual access to act on behalf of remote login message AGENT_REMOTEREGISTER, the management registration center 13 on second terminal realizes registration.
It is as shown in table 7 that said contextual access is acted on behalf of remote login message AGENT_REMOTEREGISTER.
Table 7 contextual access is acted on behalf of remote login message
Type: contextual access is acted on behalf of remote login message AGENT_REMOTEREGISTER, is used to distinguish the contextual access proxy registration message with the terminal;
Length: message body byte number;
Terminal address: the IP address of terminal at contextual access agency place to be registered;
Access end slogan: contextual access agency's process communication port.
Present engine modules obtains the data access proxy module 12 of remote terminal through management registration center interface message; Set up and present the access path of engine modules on second terminal the context-aware information data on first terminal; And the transmission access request, finally realize the context-aware information data at remote access first terminal.
But as a kind of execution mode; Data communication interface among the present invention, physical link and communication protocols such as multicast channel can be utilized intelligent network application protocol (the IntelligentNetworked Application Protocol of the applicant's independent research; INAP) (see " the intelligent terminal service and the device management techniques research of holding general fit calculation "; Shi Hongzhou, the doctor of Inst. of Computing Techn. Academia Sinica thesis, in May, 2004) and realize.The present invention implements to quote wherein relevant content and is repeated in this description no longer one by one.
The context perception information processing system of ad-hoc mode of the present invention and method have two significant advantages:
1) communication overhead is little
Shared in order to realize the context data between the terminal, the context perception information processing system of existing ad-hoc mode can be introduced more communication overhead usually.The present invention is directed to this problem; What between the terminal, realize is contextual access agency's remote login rather than context knowledge itself; Because the quantity of the context knowledge that safeguard at each terminal is huge; And the data access proxy module is unique on each terminal, so the remote login message between the terminal is a lightweight messages, and communication overhead of the present invention is fewer.
2) storage redundancy property is low
Each terminal storage of the present invention and maintenance terminal context database.Because what between the terminal, realize is contextual access agency's remote login, therefore need not carry out the synchronous of context data information; In addition, when terminal failure, just closed access path, can not influence the local or remote access that context is known between the other-end this terminal contextual information.Since need be between the terminal synchronous context knowledge, so the terminal only need store related context, the present invention has realized lower storage redundancy property.
In conjunction with the drawings to the description of the specific embodiment of the invention, others of the present invention and characteristic are conspicuous to those skilled in the art.
More than specific embodiment of the present invention is described and explains it is exemplary that these embodiment should be considered to it, and be not used in and limit the invention, the present invention should make an explanation according to appended claim.
Claims (6)
1. the context perception information processing system of an ad-hoc mode comprises a plurality of terminals of forming general calculation entironment with ad-hoc mode;
It is characterized in that said terminal comprises context database, the data access proxy module presents engine modules and management registration center, wherein:
Said context database is used to safeguard on the local terminal through the context semanteme of context-aware reasoning acquisition and the context-aware information of semantic relation;
Said data access proxy module is used to the context-aware message reference assembly is provided, and is the access interface of context database; Also be used for management registration center registration, realize registration through the management registration center of reciprocity multicast channel on other-end simultaneously in the local terminal; Registration content is the interface message of data access proxy module;
The said engine modules that appears; Be used for obtaining the interface message of registered data access proxy module through inquiry local management registration center; Through said registered data access proxy module the context-aware information in the context database is inquired about, application-oriented demand of while is carried out context-aware information inquiry result and is appeared again;
Said management registration center is used for according to the search request that presents engine modules, the interface message of searching registered data access proxy module;
Wherein, Management registration center on each terminal on safeguarding this terminal the data access proxy module and appear the reciprocal process between the engine modules; Also communicate the data access proxy module remote login of realizing cross-terminal between the management registration center through different terminals; Make that the engine modules that appears on the local terminal need be in the registration of management registration center; Just obtain interface message, realize visit, and then obtain the context-aware information data of whole network environment the context database on the other-end at the data access proxy module of management registration center registration.
2. the context perception information processing system of ad-hoc mode according to claim 1 is characterized in that, and is said with ad-hoc mode composition general calculation entironment, is the general calculation entironment that Context Toolkit, Confab networking mode are formed.
3. the context-aware information processing method of an ad-hoc mode is characterized in that, comprises the following steps:
Steps A, in the general calculation entironment of ad-hoc mode, with the context-aware information stores in the context database at each terminal of general calculation entironment;
Step B, the data access proxy module on each terminal is in the management registration center registration of this locality, and registration content is the access interface of data access proxy module; Said step B comprises the following steps B1 and step B2:
Step B1, after starting terminal, the context management registration probe message of the management registration center at terminal through multicast surveyed the effective management registration center on the other-end that has started, and effectively managed registration centers with these and set up reciprocity multicast channel;
Step B2, the data access proxy module on the terminal utilizes contextual access to act on behalf of remote login message through said reciprocity multicast channel, and the management registration center on other-end realizes registration, and registration content is the access interface of data access proxy module;
Step C; The application system at terminal is when carrying out the context-aware information inquiry; Through the interface message that the local management registration center of engine modules inquiry obtains registered data access proxy module that appears on the said terminal, obtain the context-aware information data in the corresponding context database through said registered data access proxy module again;
Wherein, Management registration center on each terminal on safeguarding this terminal the data access proxy module and appear the reciprocal process between the engine modules; Also communicate the data access proxy module remote login of realizing cross-terminal between the management registration center through different terminals; Make that the engine modules that appears on the local terminal need be in the registration of management registration center; Just obtain interface message, realize visit, and then obtain the context-aware information data of whole network environment the context database on the other-end at the data access proxy module of management registration center registration.
4. the context-aware information processing method of ad-hoc mode according to claim 3 is characterized in that, said step C comprises the following steps:
Step C1, the application system at terminal is sent context-aware information inquiring request message to presenting engine modules when carrying out the context-aware information inquiry;
Step C2 presents the interface message that engine modules is sent the registered data access proxy module of contextual access agents query information query to management registration center;
Step C3, management registration center feeds back the interface message of the data access proxy module of having registered through contextual access agents query feedback message to presenting engine modules;
Step C4 presents engine modules is transmitted application system to the data access proxy module according to the interface message in the feedback message context-aware information inquiring request message;
Step C5, the data access proxy module is visited corresponding context database;
Step C6, data access proxy module through context inquiry feedback message with the context-aware feedback information that inquires to presenting engine modules;
Step C7 presents engine modules and submits the context-aware information data that inquires to the application system at terminal.
5. the context-aware information processing method of ad-hoc mode according to claim 4 is characterized in that, among the said step C7, the context-aware information data that said submission inquires is to submit to the right form of name-value.
6. the context-aware information processing method of ad-hoc mode according to claim 3 is characterized in that, said step C comprises the following steps:
Step C1 ', the application system at terminal is sent context-aware information inquiring request message to presenting engine modules when carrying out long-range context-aware information inquiry;
Step C2 ' presents engine modules is sent the registered data access proxy module of contextual access agents query information query to telemanagement registration center through local management registration center interface message;
Step C3 ', telemanagement registration center utilizes local management registration center through contextual access agents query feedback message, feeds back the interface message of the data access proxy module of having registered to presenting engine modules;
Step C4 ' presents engine modules is transmitted application system to the remote data access proxy module according to the interface message of the data access proxy module of having registered in the feedback message context-aware information inquiring request message;
Step C5 ', remote data access proxy module visit respective remote context database;
Step C6 ', the remote data access proxy module presents the context-aware feedback information that inquires in engine modules to this locality through context inquiry feedback message;
Step C7 ', this locality presents engine modules and submits the context-aware information data that inquires to the application system at terminal.
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| US9723062B2 (en) * | 2011-09-12 | 2017-08-01 | Tata Consultancy Services Limited | System for dynamic service collaboration through identification and context of plurality of heterogeneous devices |
| CN103248653B (en) * | 2012-02-09 | 2016-06-08 | 联芯科技有限公司 | Based on multi-terminal reconfiguration system and the method for virtual terminal context environmental perception |
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| CN1581085A (en) * | 2004-05-15 | 2005-02-16 | 浙江大学 | Member management method for supporting general computation |
| CN1728091A (en) * | 2004-07-26 | 2006-02-01 | 三星电子株式会社 | Be used to provide the equipment and the method for context-aware service |
| US20060085750A1 (en) * | 2004-10-19 | 2006-04-20 | International Business Machines Corporation | Intelligent web based help system |
-
2008
- 2008-03-05 CN CN2008101013906A patent/CN101247312B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1581085A (en) * | 2004-05-15 | 2005-02-16 | 浙江大学 | Member management method for supporting general computation |
| CN1728091A (en) * | 2004-07-26 | 2006-02-01 | 三星电子株式会社 | Be used to provide the equipment and the method for context-aware service |
| US20060085750A1 (en) * | 2004-10-19 | 2006-04-20 | International Business Machines Corporation | Intelligent web based help system |
Non-Patent Citations (5)
| Title |
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| 吴华.基于环境/上下文感知的P2P网络的几个关键技术研究.华东师范大学硕士学位论文.2006,全文. * |
| 战照鹏.基于语义Web技术的上下文感知系统构架.计算机工程与应用 14.2005,(14),94-97. |
| 战照鹏.基于语义Web技术的上下文感知系统构架.计算机工程与应用 14.2005,(14),94-97. * |
| 杜桢.普适计算环境中上下文模型的建立.现代计算机（专业版） 10.2007,(10),66-69. |
| 杜桢.普适计算环境中上下文模型的建立.现代计算机(专业版) 10.2007,(10),66-69. * |
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| CN101247312A (en) | 2008-08-20 |
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