CN102497303B - IGRS (Intelligent Group and Resource Sharing) equipment interconnection system and method - Google Patents
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Abstract
The invention provides an IGRS (Intelligent Group and Resource Sharing) equipment interconnection system and method. The IGRS equipment interconnection system comprises a plurality of local area networks and a server communicated with the plurality of local area networks, wherein gateways in the multiple local area networks are used for logging in the server and carrying out gateway registration, and forwarding messages between the IGRS equipment and the server in the corresponding local area network and also used for establishing virtual equipment according to the description information, wherein the messages comprises online proclamation and description information; and the virtual equipment is used for realizing interconnection among different IGRS equipment. The IGRS equipment interconnection system and method disclosed by the invention can realize seamless interconnection and interoperation of the IGRS equipment in different local area networks and has no need for carrying out any correction and setting on the traditional IGRS equipment.
Description
Technical field
The present invention relates to field of information system, more specifically, relate to network communication field.
Background technology
The object of digital home network is to break the reality of each household equipment " information island ", realizes the resource-sharing between various information terminals and cooperation with service in family.IGRS is information equipment resource-sharing cooperation with service standard (Intelligent Grouping and Resource Sharing, be called for short IGRS standard), when the related information equipment of Ta Shi enterprise, public place, individual and family is interconnected, follow common resource and function services interface standard, make equipment can effectively realize resources open and service collaboration, improve functions of the equipments interoperability, and strengthen the function of composite services between distinct device.
The IGRS equipment that is positioned at same local area network (LAN) can be supported interconnected interoperability by IGRS agreement, but between LAN, IGRS equipment is exactly separate " information island ".If each local area network (LAN) can be connected by Internet, the IGRS equipment that realization is positioned at LAN can carry out interconnected interoperability, will further expand IGRS protocol application, realizes wider resource-sharing and cooperation with service.
About the IGRS equipment in remote access local area network (LAN), some correlative study now, for example:
The title of submitting on March 24th, 2004 has been described a kind of use IGRS agreement local area network device resource for the Chinese patent application 200410029754.6 of " a kind of method of utilizing mobile device remote to use local network resource " and has been integrated, be distributed to Internet by special server via Web server again, remote-moving apparatus is accessed the method for the mode local area network operate at Web interface by Internet.
The title of submitting on December 14th, 2007 is that the Chinese patent application 200710125032.4 of " tele-control system and the method for information household appliances in the IGRS home network based on IPv6 " has been described a kind of home gateway, in the time of external user operation control figure information household appliances, this gateway forms the control interface of each equipment, and the system and method for each equipment of centralized control.
The defect of aforementioned prior art is, it is absorbed in a control interface of use, for example Web interface or other proprietary Long-distance Control interfaces, realize the unidirectional access control to IGRS equipment in remote lan, but all do not support the interconnected interoperability between IGRS equipment in LAN network.
Summary of the invention
The present invention wishes to solve the technical problem that the IGRS equipment room in LAN network cannot interconnect, and a kind of remote I GRS equipment and mutual system and method for local IGRS equipment room realized is pellucidly provided.
According to one aspect of the invention, a kind of system of IGRS devices interconnect is provided, comprise multiple local area network (LAN)s and the server with described multiple local area network communications, wherein:
Gateway in described multiple local area network (LAN) is for logon server and carry out gateway registration, and forwarding messages between the IGRS equipment in corresponding local area network (LAN) and server, wherein said message comprises online declaration and descriptor, and also for creating virtual device according to described descriptor;
Wherein said virtual device, for realizing interconnected between different I GRS equipment.
According to a further aspect of the invention, a kind of method of the IGRS devices interconnect based on said system is provided, wherein other gateways of the first gateway of a corresponding IGRS equipment and corresponding other IGRS equipment all need to login to server and carry out gateway registration, and the method comprises:
1) an IGRS equipment is reached the standard grade in the first local area network (LAN), will declare online to broadcast in other local area network (LAN)s by the first gateway, server and other gateways;
2) other IGRS equipment are received after described online declaration, obtain the descriptor of an IGRS equipment via the first gateway, server and other gateways, and create virtual device according to described descriptor.
Preferably, described method also comprises: a 4) described IGRS equipment off-line.
Preferably, described step 2) after carry out following steps at once: 3) other IGRS equipment by described virtual device via the first gateway, server and other gateways and an IGRS equipment interoperability.
By system and method for the present invention, can realize seamless interconnected, the interoperability of IGRS equipment in LAN network.In a local area network (LAN), IGRS equipment can carry out alternately with remote I GRS equipment as biconditional operation local device, and does not need existing IGRS equipment to carry out any amendment and setting the IGRS equipment of any standard interconnected, interoperability pellucidly.
Brief description of the drawings
Fig. 1 is communication system schematic diagram in accordance with a preferred embodiment of the present invention;
Fig. 2 is the interconnected system block diagram of IGRS apparatus remote in accordance with a preferred embodiment of the present invention;
Fig. 3 is the interconnected schematic flow sheet of IGRS apparatus remote of the system based on shown in Fig. 2 in accordance with a preferred embodiment of the present invention;
Fig. 4 is IGRS virtual device discovery sequential chart in accordance with a preferred embodiment of the present invention;
Fig. 5 is IGRS equipment control sequential chart in accordance with a preferred embodiment of the present invention;
Fig. 6 is IGRS equipment subscription service sequential chart in accordance with a preferred embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the System and method for of IGRS devices interconnect is in accordance with a preferred embodiment of the present invention further described.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows communication system schematic diagram in accordance with a preferred embodiment of the present invention.In the communication system of Fig. 1, by devices such as the servers on introducing gateway and Internet, realize the transparent interaction of the IGRS equipment such as PC, printer etc. in the equipment based on IGRS standard such as notebook computer, projecting apparatus etc. and the remote lan in local area network.For example local IGRS notebook computer can be found remote I GRS printer, and can be considered as equally with local IGRS printer, local file is consigned to remote I GRS printer and print.
Fig. 2 is the interconnected system block diagram of IGRS apparatus remote in accordance with a preferred embodiment of the present invention.As shown in Figure 2, this system comprises server and gateway.Wherein server is positioned at Internet, and gateway is arranged in local area network (LAN), uses XMPP agreement to communicate between gateway and server.More specifically, each gateway can be logined to the server being positioned on Internet by XMPP standard, is registered to the domain manager on server, communicates with server.
Gateway, except being provided with login module, IGRS proxy program and IGRS/XMPP transducer, also has the ability that creates virtual device.Login module is used for realizing gateway to be logined to server, and registers in the domain manager of server.IGRS proxy program is used for collecting IGRS facility information in this local area network (LAN).IGRS/XMPP transducer is used for IGRS facility information collected local gateway IGRS proxy program, after being packaged into XMPP XML stream, be forwarded to remote gateway by server, and be reduced into IGRS message by remote gateway, thereby realization and remote gateway is mutual.This gateway is also for getting at local gateway after long-range IGRS facility information, create in this locality corresponding virtual device as long-range IGRS equipment at local reflection.This virtual device, as long-range IGRS equipment and the intermediary of local IGRS equipment, forwards the control information of long-range IGRS equipment to local IGRS equipment, realizes the transparent interaction of local IGRS equipment and long-range IGRS equipment.Local IGRS equipment can, by controlling the mode of virtual device, be realized the control to remote I GRS equipment.Virtual device also forwards service subscription message and event notification message as the intermediary between long-range IGRS equipment and local IGRS equipment.Thus, local IGRS equipment can, by subscribing to the mode of virtual device service, be realized the subscription to remote I GRS device service; In the time that remote equipment produces subscription event notice, local device obtains this announcement information by virtual device.
Server comprises login manager, domain manager and headend.Wherein, login manager is for the log-on message of management gateway.Domain manager is used for managing each logging in gateway, preferably, this domain manager is divided the each logging in gateway of management by territory, and the gateway in same area is not realized information isolation, each gateway can only receive the message of other gateways in the next same territory of server forwarding, avoids information explosion.Headend is for realizing the XMPP data retransmission that gateway is sent to object gateway.This server can be positioned on the Internet, can be also independent server or is positioned on other networks such as metropolitan area network.
Between gateway, when session, first the information of sending arrive the headend of server, and the headend in server is according to wherein type and the territory, gateway place of information forward.Wherein, in the message that gateway sends, conventionally can comprise destination device address, send ID, the information content and the information category of gateway.If the message between designated equipment, server is basis destination device address wherein first, inquire its affiliated intended gateway ID, then get the IP address and the port that when this gateway is logined, use, and then this message is sent to the network terminal of this IP and port-mark.Gateway and server end use Socket port to carry out communication, and gateway can use IP address or the domain name of server end to resolve server, to obtain the real address of server.
Fig. 3 shows the interconnected schematic flow sheet of IGRS apparatus remote of the system based on shown in Fig. 2 in accordance with a preferred embodiment of the present invention.This flow process has realized IGRS main control device B (hereinafter to be referred as " main control end ") in IGRS controlled plant A (hereinafter to be referred as " controlled end ") in local area network (LAN) A and local area network (LAN) B carries out the method for remote interaction by the gateway (gateway A, B) in local area network (LAN) separately and Internet server, the method mainly comprises following steps:
Step 1, gateway login.Gateway A and B login to server respectively, and register in same territory.
After gateways and starting, logging request is encapsulated as the XML stream that XMPP agreement specifies by the login module of gateway A, and request is sent to the login manager of server end; Login manager receives this XML and flows and resolve its content, then gateway A identity is verified, and the result is sent to the gateway of the request of initiation, i.e. gateway A in the mode of standard x MPP XML stream.
Gateway requests is verified, and the domain manager of server is registered the domain information of this gateway A, and the related news of other logging in gateway in same territory, for example message of gateway B, the form flowing with standard x MPP XML sends to the login module of this gateway A.
Step 2, perception controlled end is reached the standard grade.Controlled end is issued online declaration in local area network (LAN) A, IGRS proxy program in gateway A listens to after local online declaration, after being packaged into XMPP XML stream by IGRS/XMPP transducer, be forwarded to server, headend in server by this XML flow forwarding for example, to the every other gateway in same territory, gateway B; Gateway B is reduced to IGRS announcement message through IGRS/XMPP transducer after receiving XML stream, and broadcasts in local area network (LAN) B.
Fig. 4 shows IGRS virtual device in accordance with a preferred embodiment of the present invention and finds sequential chart, has wherein illustrated line process on perception controlled end.This perception specifically describes as follows:
1) controlled end is reached the standard grade.The IGRS proxy program of gateway A is intercepted local multicast interface 239.255.255.250:1900, after controlled end is reached the standard grade, to the declaration of this interface transmitting apparatus/service online.
2) gateway A encapsulate forwarded.The IGRS proxy program of gateway A listens to after the online announcement message of multicast interface, is packaged into the XML forwarding data flow of XMPP to the headend of server through IGRS/XMPP transducer.
3) server broadcast.The headend of server receives after online announcement message, upgrades the information of gateway A, and this online announcement message is broadcasted in territory, gateway A place through headend on notice domain manager.
4) gateway B resolves and forwards.The IGRS/XMPP transducer of gateway B is received after the message of server broadcast, is resolved to IGRS announcement message, and in local area network (LAN) B, broadcasts this declaration through IGRS proxy program.
Step 3, obtains descriptor.Still with reference to figure 4, the main control end in local area network (LAN) B is received after online declaration, sends and obtains descriptor request to the informed source of this declaration, and at this, this informed source is gateway B; The IGRS proxy program of gateway B receives after this obtains descriptor request and is packaged into XML stream by IGRS/XMPP transducer and is forwarded to gateway A through the headend of server; The IGRS/XMPP transducer reduction XML stream of gateway A is for IGRS request and be transmitted to controlled end by IGRS proxy program; Descriptor is returned to gateway A by controlled end, and the IGRS/XMPP transducer of gateway A is forwarded to gateway B through server after encapsulating this information.This step specifically describes as follows:
1) main control end initiates to obtain the request of description.Main control end is received after the online declaration of gateway B broadcast, sends to obtain describe request message GetDeviceDescriptionRequest to gateway B.
2) gateway B encapsulate forwarded.The IGRS proxy program of gateway B is received after the message of main control end transmission, is packaged into XMPP message is transmitted to server by IGRS/XMPP transducer.
3) server forwards.The headend of server receives this XMPP message, and according to after destination address corresponding in XMPP information query domain manager, then be transmitted to gateway A by headend.
4) gateway A is resolved and is forwarded.Gateway A is resolved to and is obtained description request message GetDeviceDescriptionRequest by IGRS/XMPP transducer after receiving XMPP message, is transmitted to controlled end by IGRS proxy program.
5) controlled end returns to descriptor.Controlled end is received after message, returns and describes response message GetServiceDescriptionResponse.
6) gateway A encapsulate forwarded.The IGRS/XMPP transducer of gateway A is forwarded to server after description response message is packaged into XMPP XML stream.
7) server forwards.The headend of server is received after the XMPP message after encapsulation, is transmitted to gateway B according to the address in domain manager.
Step 4, creates virtual device.The IGRS/XMPP transducer resolution server of gateway B forwards after next description response message GetServiceDescriptionResponse, gateway creates a local virtual device according to the descriptor in this message, and returns to descriptor to main control end with the identity of this virtual device.
By above-mentioned steps two, three and four, main control end can be found local virtual device, and realizes mutual with remote controlled end to operate the form of local virtual device.
Step 5, control appliance.Main control end is received after the descriptor of virtual device transmission, virtual device is sent to IGRS control message; Virtual device receives after control message, is packaged into after XML flows and is transmitted to the controlled end in local area network (LAN) A through server and gateway A by the IGRS/XMPP transducer of gateway B; Controlled end receives after control message, returns to state of a control to gateway B through same process, and gateway B returns to this information to main control end with the identity of virtual device again.
Fig. 5 shows equipment control sequential chart in accordance with a preferred embodiment of the present invention.To control the flow process of remote controlled end as follows by controlling local virtual device for main control end:
1) main control end initiates to control request InvokeServiceRequest to virtual device.
2) virtual device of gateway B receives after this control request, and triggering IGRS/XMPP transducer is packaged into XMPP message by this control request and is transmitted to server.
3) server is transmitted to gateway A by data converter.
4) the IGRS/XMPP transducer of gateway A is resolved after this request, is transmitted to controlled end.
5) controlled end is received after control message, carries out control command and changes corresponding control variables, then control result is returned to gateway A.
6) the IGRS/XMPP transducer of gateway A is transmitted to server after encapsulating this control result.
7) server forwards this control result to gateway B by data converter.
8) the IGRS/XMPP transducer of gateway B is resolved and is controlled after result, returns to this result to main control end with the identity of virtual device.
Step 6, subscribes to device service.Main control end is analogous to control procedure to the service subscription process of virtual device.Fig. 6 shows subscription device service sequential chart in accordance with a preferred embodiment of the present invention.The process that main control end is subscribed to remote controlled end by local virtual device is analogous to equipment control, and difference is that subscribe request arrives after remote controlled end, and controlled end will upgrade subscriber list.
Step 7, equipment state change notification.In the time that the controlled end service state in local area network (LAN) A changes, this controlled end sends status change notification message according to local subscription person list to all subscribers.Particularly, will after this status change notification encapsulation, be forwarded to gateway B through server by the IGRS/XMPP transducer of gateway A; Gateway B sends this subscribing notification to main control end with the identity of virtual device again.The step that the said equipment status change notification comprises is described in further detail below:
1) when controlled end service state changes, will produce status change notification, after query subscription person's list, status change notification be sent to gateway A;
2) after the IGRS/XMPP transducer of gateway A encapsulates this status change notification, be transmitted to server.
3) the data converter inquiry field manager of server is transmitted to this status change notification the gateway of the local area network (LAN) at subscriber place, for example gateway B.
4) the IGRS/XMPP transducer of gateway B is resolved after this status change notification, with this state variation of identity notice main control end of virtual device.
Step 8, equipment off-line.In the time of controlled end off-line in local area network (LAN) A, the off-line declaration that this controlled end is issued is received by the IGRS proxy program of gateway A and be forwarded to gateway B through server after the encapsulation of IGRS/XMPP transducer; Gateway B deletes after local virtual device, broadcasts this deferred information to local area network (LAN) B.One of ordinary skill in the art will appreciate that, the process of controlled end off-line and upper line process are similar, and difference is that off-line declaration arrives after gateway B, after gateway B deletes corresponding virtual device, then forward off-line declaration to local area network (LAN) B.
One of ordinary skill in the art will appreciate that, above preferred embodiment comprises control appliance and the two related institute of subscription device service in steps, and still, the order between these steps can be different from above description.Further, these two is not must be simultaneous, in certain embodiments, can only have wherein any one.
Should be noted that and understand, in the situation that not departing from the desired the spirit and scope of the present invention of accompanying claim, can make various amendments and improvement to the present invention of foregoing detailed description.Therefore, the scope of claimed technical scheme is not subject to the restriction of given any specific exemplary teachings.
Claims (16)
1. a system for IGRS devices interconnect, comprises multiple local area network (LAN)s and the server with described multiple local area network communications, wherein:
Gateway in described multiple local area network (LAN) is for logon server and carry out gateway registration, and forwarding messages between the IGRS equipment in corresponding local area network (LAN) and server, wherein said message comprises online declaration and descriptor, and also for creating virtual device according to described descriptor;
Wherein said virtual device, for realizing interconnected between different I GRS equipment;
Wherein, the gateway in described multiple local area network (LAN) comprises the first gateway of a corresponding IGRS equipment and other gateways of corresponding other IGRS equipment; And wherein, a described IGRS equipment, for reaching the standard grade in the first local area network (LAN), will be declared to broadcast in other local area network (LAN)s by the first gateway, server and described other gateways online; Described other IGRS equipment are used for receiving after described online declaration, obtain the descriptor of an IGRS equipment via the first gateway, server and described other gateways, and create virtual device according to described descriptor.
2. system according to claim 1, wherein said gateway comprises: login module, IGRS proxy program and IGRS/XMPP transducer, wherein:
Described login module is for logon server and carry out gateway registration;
Described IGRS proxy program is communicated by letter for IGRS equipment and described IGRS/XMPP transducer;
Described IGRS/XMPP transducer becomes XMPP XML to flow and is transmitted to server for the Information encapsulation that described IGRS proxy program is received, and is IGRS message by the information reverting from server and is transmitted to described IGRS proxy program.
3. system according to claim 1 and 2, wherein said server comprises login manager, domain manager and headend:
Described login manager, for receiving and resolve the logging request of described multiple gateways, verifies gateway identity;
Described domain manager, for registering the domain information by validation gateway, and sends to this to pass through validation gateway the domain information of other logging in gateway;
Described headend, for forwarding messages between described multiple gateways.
4. system according to claim 1 and 2, wherein said server is also for pressing territory management gateway.
5. a method for the IGRS devices interconnect based on above-mentioned arbitrary system, wherein other gateways of the first gateway of a corresponding IGRS equipment and corresponding other IGRS equipment all need to login to server and carry out gateway registration, and the method comprises:
1) an IGRS equipment is reached the standard grade in the first local area network (LAN), will declare online to broadcast in other local area network (LAN)s by the first gateway, server and described other gateways;
2) described other IGRS equipment are received after described online declaration, obtain the descriptor of an IGRS equipment via the first gateway, server and described other gateways, and create virtual device according to described descriptor.
6. method according to claim 5, is characterized in that, described method also comprises:
4) a described IGRS equipment off-line.
7. according to the method described in claim 5 or 6, it is characterized in that, described login to server and carry out gateway registration comprise:
01) logging request is encapsulated as XMPP XML stream by the first gateway and described other gateways, and be sent to server;
02) server receives this XMPP XML and flows and resolve its content, and gateway identity is verified;
03) server registration is by the domain information of validation gateway, and sends to this to pass through validation gateway the domain information of described other logging in gateway.
8. according to the method described in claim 5 or 6, it is characterized in that, described step 1) comprises:
11) an IGRS equipment is to the declaration of local multicast interface transmitting apparatus/service online;
12) the first gateway listens to after the online declaration of multicast interface, and described online declaration is packaged into XMPP XML flow forwarding to server;
13) server receives after XMPP XML stream, upgrades the information of the first gateway, and this XMPP XML stream is broadcasted in the first territory, gateway place;
14) after the XMPP XML stream of described other gateway reception server broadcast, this XMPP XML stream is resolved to IGRS announcement message and broadcast in described other IGRS equipment place local area network (LAN)s.
9. according to the method described in claim 5 or 6, it is characterized in that described step 2) described in obtain an IGRS equipment descriptor comprise:
21) described other IGRS equipment send to described other gateways the descriptor request of obtaining;
22) described other gateways will described in obtain descriptor request and be packaged into and obtain descriptor request XMPP message and be transmitted to server;
23) server receives this and obtains descriptor request XMPP message and this is obtained to descriptor request XMPP message and is transmitted to the first gateway;
24) the first gateway receives this and obtains descriptor request XMPP message, and resolves to into and obtain descriptor request and be transmitted to an IGRS equipment;
25) an IGRS equipment returns to descriptor;
26) the first gateway is forwarded to server after descriptor is packaged into XMPP XML stream;
27) server is received after the descriptor that is packaged into XMPP XML stream, is transmitted to described other gateways.
10. method according to claim 6, is characterized in that, described step 4) comprises:
41) an IGRS equipment is declared to local multicast interface transmitting apparatus/service off-line;
42) the first gateway listens to after the off-line declaration of multicast interface, and described off-line declaration is packaged into XMPP XML flow forwarding to server;
43) server receives after XMPP XML stream, upgrades the information of the first gateway, and this XMPP XML stream is broadcasted in the first territory, gateway place;
44) after the XMPP XML stream of described other gateway reception server broadcast, delete virtual device, this XMPP XML stream is resolved to IGRS announcement message and broadcast in described other IGRS equipment place local area network (LAN)s.
11. methods according to claim 5, is characterized in that, described step 2) the rear following steps of carrying out at once:
3) described other IGRS equipment by described virtual device via the first gateway, server and described other gateways and an IGRS equipment interoperability.
12. methods according to claim 11, is characterized in that, described interoperability comprises to be controlled and/or service.
13. methods according to claim 12, is characterized in that, described control comprises:
311) described other IGRS equipment initiate to control request to the virtual device of described other gateways;
312) virtual device receives after this control request, and described other gateways are packaged into XMPP message by this control request and are transmitted to server;
313) server is transmitted to the first gateway;
314) the first gateway is resolved this and is packaged into the control request of XMPP message and is transmitted to an IGRS equipment;
315) an IGRS equipment is carried out control command and changes corresponding control variables according to this control request, then control result is returned to the first gateway;
316) the first gateway encapsulates this control result and becomes XMPP message and be transmitted to server;
317) server forwards this control result to described other gateways;
318) described other gateways are resolved after this control result, return to this control result to described other IGRS equipment with the identity of virtual device.
14. methods according to claim 12, is characterized in that, described service comprises:
321) described other IGRS equipment are subscribed to an IGRS device service;
322) described other IGRS equipment equipment states of a described IGRS equipment notice change.
15. methods according to claim 14, is characterized in that, described step 321) comprising:
3211) described other IGRS equipment initiate to subscribe to device service request to the virtual device of described other gateways;
3212) virtual device receives after this subscription device service request, and described other gateways are packaged into XMPP message by this subscription device service request and are transmitted to server;
3213) server is transmitted to the first gateway;
3214) the first gateway is resolved this and is packaged into the subscription device service request of XMPP message and is transmitted to an IGRS equipment;
3215) an IGRS equipment upgrades subscriber list according to this subscription device service request.
16. methods according to claim 14, is characterized in that, described step 322) comprising:
3221) an IGRS device service produces status change notification and status change notification is sent to the first gateway;
3222) to encapsulate this status change notification be to be transmitted to server after XMPP XML stream to the first gateway;
3223) this status change notification is transmitted to described other gateways by server, and wherein said other IGRS equipment are service subscription person;
3224) described other gateways are resolved after this status change notification, with the state variation of other IGRS equipment the one IGRS equipment described in the identity notice of virtual device.
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| CN101282464B (en) * | 2007-04-03 | 2012-12-19 | 联想(北京)有限公司 | Terminal and method for transferring video |
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| CN101212372A (en) * | 2006-12-26 | 2008-07-02 | 深圳Tcl工业研究院有限公司 | Method and system for interworking between digital household equipment networks |
| CN101369950A (en) * | 2007-08-13 | 2009-02-18 | 康佳集团股份有限公司 | Communication method between digital houses |
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