CN102547223A - System and method for realizing fusion of Internet protocol television (IPTV) and video monitoring based on IP multimedia system (IMS) - Google Patents
System and method for realizing fusion of Internet protocol television (IPTV) and video monitoring based on IP multimedia system (IMS) Download PDFInfo
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- CN102547223A CN102547223A CN2010105976765A CN201010597676A CN102547223A CN 102547223 A CN102547223 A CN 102547223A CN 2010105976765 A CN2010105976765 A CN 2010105976765A CN 201010597676 A CN201010597676 A CN 201010597676A CN 102547223 A CN102547223 A CN 102547223A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000004927 fusion Effects 0.000 title abstract description 11
- 238000004891 communication Methods 0.000 claims description 11
- 230000010354 integration Effects 0.000 claims description 8
- 230000003993 interaction Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 description 13
- 238000013475 authorization Methods 0.000 description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/21—Server components or server architectures
- H04N21/218—Source of audio or video content, e.g. local disk arrays
- H04N21/2187—Live feed
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/643—Communication protocols
- H04N21/64322—IP
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention provides a system and a method for realizing the fusion of an Internet protocol television (IPTV) and video monitoring based on an IP multimedia system (IMS). The system and the method are applied to an IMS architecture, an IPTV system and a video monitoring system. The IMS architecture is provided with the IPTV system and the video monitoring system in a unified way, and is used for providing a support for the IPTV system or video monitoring system access of a client. The IPTV system and the video monitoring system are used for respectively providing service for the client through the IMS architecture. By the system and the method for realizing the fusion of the IPTV and the video monitoring based on the IMS, multimedia fusion services capable of fusing the IPTV and the video monitoring can be provided.
Description
Technical Field
The invention relates to the field of communication, in particular to a system and a method for realizing the integration of IPTV and video monitoring based on an IP Multimedia Subsystem (IMS).
Background
With the development of video services such as IPTV and video monitoring, multimedia fusion services represented by 'fusion video' are one of the future development directions; however, no specific technical support for integrating IPTV and video monitoring exists at present.
Disclosure of Invention
In view of this, the main objective of the present invention is to provide a system and a method for implementing IPTV and video surveillance fusion based on IMS, so as to provide a multimedia fusion service capable of fusing IPTV and video surveillance.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a system for realizing the integration of IPTV and video monitoring based on an IP multimedia subsystem IMS comprises an IMS framework, an IPTV system and a video monitoring system; wherein,
the IPTV system and the video monitoring system are uniformly deployed under the IMS architecture and are used for providing support for a client CU to access the IPTV system or the video monitoring system;
the IPTV system and the video monitoring system are used for respectively providing services for CUs through the IMS architecture.
When the IMS architecture provides services for the CU, the IMS architecture comprises an IMS core network connected with the IPTV system and the video monitoring system, and the IMS core network is used for supporting the IPTV system and the video monitoring system to provide services for the CU.
The CU comprises an interface layer, a service function layer and a communication protocol layer; wherein,
the interface layer is used for respectively providing an IPTV client interface and a video monitoring client interface aiming at the IPTV system and the video monitoring system;
the service function layer is used for supporting IPTV and the service function of video monitoring;
and the communication protocol layer is used for supporting the message interaction of the CU.
The IPTV system and the video monitoring system are both connected with the media function MF module and share the MF.
When the IPTV system or the video monitoring system provides services for the CU, the IPTV system or the video monitoring system is used for supporting at least one of the following services:
CU registration, service discovery, service selection and playing.
A method for realizing the integration of IPTV and video monitoring based on IMS comprises the following steps:
an IPTV system and a video monitoring system are uniformly deployed under an IMS architecture;
and providing service for the CU to access an IPTV system or a video monitoring system through the IMS architecture.
The method for providing services for the CUs through the IMS architecture comprises the following steps:
and providing services for the CUs through an IMS core network in the IMS architecture.
The CU comprises an interface layer, a service function layer and a communication protocol layer; the following operations were performed for each layer:
the interface layer provides an IPTV client interface and a video monitoring client interface respectively aiming at the IPTV system and the video monitoring system;
the service function layer supports IPTV and the service function of video monitoring;
the communication protocol layer supports message interaction of the CU.
The IPTV system and the video monitoring system share MF.
The IPTV system or the video monitoring system provides services for the CUs, and the method comprises at least one of the following steps:
CU registration, service discovery, service selection and playing.
The system and the method of the invention realize the integration of IPTV and video monitoring based on IMS, and can provide multimedia integration service capable of integrating IPTV and video monitoring.
Drawings
Fig. 1 is a system architecture diagram for implementing the fusion of IPTV and video monitoring based on IMS according to an embodiment of the present invention;
FIG. 2 is a block diagram of a Client (CU) according to an embodiment of the present invention;
FIG. 3 is a flow chart of CU registration according to an embodiment of the present invention;
FIG. 4 is a flow chart of service discovery according to an embodiment of the present invention;
FIG. 5 is a flow chart of service selection according to an embodiment of the present invention;
FIG. 6 is a flow chart of playing according to an embodiment of the present invention;
fig. 7 is a simplified flowchart of implementing the fusion of IPTV and video monitoring based on IMS according to the embodiment of the present invention.
Detailed Description
In general, as shown in fig. 1, an IPTV system and a video monitoring system may be organically integrated and uniformly deployed under an IMS architecture, and the two systems may share a CU and a Media Function (MF) module in deployment; in addition, the IPTV system and the video monitoring system can be mutually independent in service logic through the differentiation of the domain name and the signing rule.
The MF includes two parts, namely a Content Delivery Network (CDN) and a media storage and service function (SS), through which the media delivery and storage service functions can be respectively implemented.
It should be noted that the CUs are converged CUs and can be accessed through an IMS core network (IMSCore). The CU is not only the client of the IPTV, but also the client of the video monitoring; the IPTV system and the video surveillance system are two systems completely different in service. Thus, the access of the CU and the front-end encoder unit (PU) can be realized more conveniently by utilizing the characteristic of unified access of the IMS core network.
From the perspective of the client, the CU can simultaneously access the IPTV system and the video monitoring system through the IMS core network, that is, simultaneously perform IPTV and video monitoring services. The service request initiated by the client is forwarded to an IPTV application server (IPTV _ AS) or a video monitoring application server (VSS _ AS) through an IMS core network according to different subscription rules formulated at an HSS side, and the corresponding service is triggered.
From the perspective of the platform, the IPTV system and the video surveillance system are based on the IMS architecture, and can access their respective media-related parts through the MF module, and the two systems are independent from each other in terms of service but converged in terms of deployment. Moreover, by sharing the MF module, the system can be simplified, and the deployment cost can be reduced.
Generally, the MF grasps the health condition, content distribution condition, and load state of the streaming media service in real time, is responsible for load balancing and intelligent scheduling of user access, and finally provides the streaming media service for the user. The MF module is mainly divided into a CDN part and an SS part. The CDN serves as a content delivery scheduler to manage the operating states and service conditions of different SS nodes.
Specifically, the client is mainly divided into: an interface layer, a service function layer, and a communication protocol layer, as shown in fig. 2. The interface layer provides an IPTV client interface and a video monitoring client interface respectively aiming at the IPTV system and the video monitoring system, and can be customized respectively; the service function layer can support both IPTV and related service functions of video monitoring; and the message interaction with the IMS core network and other network elements is completed through a communication protocol layer.
In practical applications, specific operations for implementing convergence of IPTV and video surveillance based on IMS can be shown in fig. 3 to 6.
Referring to fig. 3, fig. 3 is a CU registration flow chart according to an embodiment of the present invention, where the preconditions of the flow are: and if the user is not registered, the CU successfully acquires the P-CSCF address. The P-CSCF address can be obtained in a dynamic DHCP mode or configured in a static method.
The process shown in FIG. 3 includes the following steps:
step 301: a CU initiates a REGISTER (REGISTER) request to an IMS Core, and an incomplete authentication information is carried in a message header of the REGISTER request; the process begins.
Step 302: the IMS Core obtains authentication information of the CU and returns 401 an authentication challenge response to the CU.
Step 303: after receiving 401, the CU re-initiates a REGISTER request to the IMS Core. This time, the request message carries complete authentication information.
Step 304: and the IMS Core progresses authentication and authorization, and returns a registration success response to the CU after the authentication and authorization are successful, wherein the CU is successfully registered with the Core network at the moment.
Step 305: and after the CU is successfully registered, the IMS Core checks the service triggering rule, judges whether the SCF needs to be registered with the service according to the service triggering rule, and initiates a registration request to the SCF according to the service triggering condition if the SCF needs to be registered with the service.
Step 306: the SCF returns a registration response to the IMS Core.
Referring to fig. 4, fig. 4 is a flow chart of service discovery according to an embodiment of the present invention. In FIG. 4, after a CU completes registration, the SSF is obtained from the SDF module. After the SDF judges the user authority, the appropriate SSF is returned to the CU. The precondition for the flow shown in fig. 4 is: the user successfully registers with the IMS. The flow shown in fig. 4 includes the following steps:
step 401: to obtain the SSF address, the CU sends a Subscribe (Subscribe) message to the IMS Core.
Step 402: the IMS Core receives the Subscribe message and forwards the Subscribe message to the SDF.
Step 403: the SDF checks parameters in the Subscribe message body and performs service logic processing, selects an appropriate SSF, and then responds 200OK to the IMS Core.
Step 404: the IMS Core returns a 200OK to the CU.
Step 405: the SDF informs the IMS Core of the appropriate list of SSF service information.
Step 406: the IMS Core forwards a Notify message to the CU.
Step 407: after the CU receives the SSF service information, a response 200OK is sent to the IMS Core.
Step 408: the IMS Core forwards the 200OK to the SDF.
Referring to fig. 5, fig. 5 is a flow chart of service selection according to an embodiment of the present invention, where the precondition of the flow is: SCF pre-generates RSA public and private key pair (PubKey, PriKey), and the PriKey is stored secretly by the operator and is stored in the CU. The flow shown in fig. 5 includes the following steps:
step 501: the CU randomly generates a key encryption key KEK of 128bits, obtains EKEKEK by using PubKey encryption of SCF, and sends EKEK to IMS Core by a Subscripte request.
Step 502: the IMS Core forwards the EKEK to the SCF.
Step 503: the SCF decrypts the EKEKEK by using the PrIKEY to obtain the KEK, and returns error information if the decryption is wrong; and if the decryption is successful, randomly generating an authentication key of 128bits, and encrypting by using the KEK to obtain the Ekey.
Step 504: the SCF returns a 200OK to the IMS Core.
Step 505: the IMS Core forwards the 200OK to the CU.
Step 506: the SCF sends EKey to the IMS Core via Notify request.
Step 507: the IMS Core forwards the EKey to the CU.
Step 508: and the CU decrypts the EKey by the KEK to obtain the authentication key.
Step 509: the CU returns a 200OK to the IMS-Core.
Step 510: the IMS Core forwards the 200OK to the SCF.
Step 511: the CU sends an HTTP Request message to the SSF.
Step 512: when the SSF finds that the CU has no authentication state, the return 401 is unauthenticated (unauthenticate), and the CU is required to perform HTTP (abstract) Digest authentication.
Step 513: the CU calculates the challenge response value, returns an Authorization Header, and sends the HTTP request again.
Step 514: the SSF checks whether the key of the CU is stored, and if the key is not stored or is expired, the SCF is requested to inquire the corresponding key.
Step 515: the SCF returns the key and the key validity period to the SSF.
Step 516: SSF saves key and key validity period, verifies whether the Authorization Header is correct, and returns error information if the Authorization Header is wrong; if the answer is correct, the answer value is calculated, and authorization-Info is returned.
517: the CU verifies whether the Authentication-Info is correct or not, and if the Authentication-Info is incorrect, the flow is terminated; if the result is correct, an IPTV channel list or video monitoring channel list request is initiated, and the HTTP Header comprises a newly-calculated Authorization Header.
Step 518: the SSF returns IPTV channel list or video monitoring channel list information.
Referring to fig. 6, fig. 6 is a playing flow chart according to an embodiment of the present invention, where the precondition of the playing flow is: the CU and PU are successfully registered to the IMS network and the media data of the browsing channel is already accessed to the SS. The flow shown in fig. 6 includes the following steps:
step 601: and the CU initiates an INVITE call request to the IMS Core, wherein the call request carries the SDP information of the CU.
It should be noted that, because it is to be distinguished whether the call request is directed to the IPTV system or the video surveillance system, a subscription rule key for distinguishing different service logics is included in a destination domain of the call request. For example, if the current request is an IPTV program playing request, the keyword is IPTV; and if the current request is a video monitoring real-time video request, the keyword is VSS.
Step 602: and the IMS Core reserves corresponding resources according to the SDP information of the CU.
Step 603: the IMS Core forwards the INVITE to the corresponding SCF according to a subscription regulation preset in the HSS. If the message destination domain has IPTV keywords, forwarding the IPTV keywords to the SCF corresponding to the IPTV system; if the message destination domain has the VSS keyword, forwarding the message destination domain to the SCF corresponding to the video monitoring system.
Step 604: and the corresponding SCF performs session processing and acquires the played URL through the CDN.
Step 605: SCF applies for CU playing resource from SS, and SDP information of CU is carried in request message.
Step 606: and the SS returns a CU play resource response message to the SCF, and the response message comprises SDP information of the SS of the CU.
Step 607: the SCF forwards the INVITE response message to the IMS Core.
Step 608: and the IMS Core accessed by the CU submits corresponding resources.
Step 609: IMSCore forwards the INVITE response to the CU.
Step 610: the CU acknowledges the response and returns an ACK to the IMS Core to which the CU has access.
Step 611: IMSCore forwards the ACK to the SCF.
Step 612: the SCF informs the SS to play a resource confirmation message to inform the media session establishment success.
Step 613: the SS starts sending the real-time stream to the CU.
Step 614: and when the CU finishes the real-time monitoring, actively sending a BYE request to the IMS Core.
Step 615: the IMS Core forwards the BYE request to the SCF.
Step 616: and the SCF informs the SS to stop sending the code stream.
Step 617: the SS returns a stop response to the SCF.
Step 618: the SCF sends a BYE response to the IMS Core.
Step 619: the IMS Core forwards the BYE response to the CU and the session ends.
It should be noted that the video monitoring can also directly play the PU real-time video.
RTCP packets may be transmitted simultaneously when RTP data is transmitted.
If a VCR operation is to be performed, an RTSP connection may be established.
The CU adopts a component structure, and different services of IPTV and video monitoring can be realized in one application program.
With reference to the system and CU architecture shown in fig. 1 and fig. 2 and the flow shown in fig. 3 to fig. 6, the operation idea of implementing the fusion of IPTV and video surveillance based on IMS in the present invention can be shown in fig. 7, where the flow shown in fig. 7 includes the following steps:
step 710: and an IPTV system and a video monitoring system are uniformly deployed under an IMS architecture.
Step 720: and providing service for the CU to access an IPTV system or a video monitoring system through the IMS architecture.
In summary, the present invention can provide a multimedia convergence service capable of merging IPTV and video monitoring based on the technology of implementing IPTV and video monitoring based on IMS, regardless of the system or method.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (10)
1. A system for realizing the integration of IPTV and video monitoring based on an IP multimedia subsystem IMS is characterized in that the system comprises an IMS framework, an IPTV system and a video monitoring system; wherein,
the IPTV system and the video monitoring system are uniformly deployed under the IMS architecture and are used for providing support for a client CU to access the IPTV system or the video monitoring system;
the IPTV system and the video monitoring system are used for respectively providing services for CUs through the IMS architecture.
2. The system of claim 1, wherein when the IMS architecture is used to provide services for CUs, the IMS architecture comprises an IMS core network connected to both the IPTV system and the video surveillance system, and the IMS core network is used to support the IPTV system and the video surveillance system to provide services for CUs.
3. The system of claim 1, wherein the CU comprises an interface layer, a service function layer, a communication protocol layer; wherein,
the interface layer is used for respectively providing an IPTV client interface and a video monitoring client interface aiming at the IPTV system and the video monitoring system;
the service function layer is used for supporting IPTV and the service function of video monitoring;
and the communication protocol layer is used for supporting the message interaction of the CU.
4. The system according to any one of claims 1 to 3, wherein the IPTV system and the video monitoring system are connected to a media function MF module and share MF.
5. The system of claim 4, wherein the IPTV system or the video surveillance system is configured to support at least one of the following services when providing services to CUs:
CU registration, service discovery, service selection and playing.
6. A method for realizing the integration of IPTV and video monitoring based on IMS is characterized in that the method comprises the following steps:
an IPTV system and a video monitoring system are uniformly deployed under an IMS architecture;
and providing service for the CU to access an IPTV system or a video monitoring system through the IMS architecture.
7. The method of claim 6, wherein the method for serving the CU through the IMS architecture comprises:
and providing services for the CUs through an IMS core network in the IMS architecture.
8. The method of claim 6, wherein the CU comprises an interface layer, a service function layer, and a communication protocol layer; the following operations were performed for each layer:
the interface layer provides an IPTV client interface and a video monitoring client interface respectively aiming at the IPTV system and the video monitoring system;
the service function layer supports IPTV and the service function of video monitoring;
the communication protocol layer supports message interaction of the CU.
9. The method according to any of claims 6 to 8, wherein the IPTV system and the video surveillance system share a MF.
10. The method of claim 9, wherein the IPTV system or video surveillance system provides services to CUs in a manner that includes at least one of:
CU registration, service discovery, service selection and playing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010597676.5A CN102547223B (en) | 2010-12-20 | The system and method for IPTV and video monitoring fusion is realized based on IMS | |
| PCT/CN2011/082306 WO2012083772A1 (en) | 2010-12-20 | 2011-11-16 | System and method for integrating iptv and video monitoring based on ims |
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| CN201010597676.5A CN102547223B (en) | 2010-12-20 | The system and method for IPTV and video monitoring fusion is realized based on IMS |
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| CN102547223A true CN102547223A (en) | 2012-07-04 |
| CN102547223B CN102547223B (en) | 2016-12-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108270995A (en) * | 2017-01-03 | 2018-07-10 | 中国移动通信有限公司研究院 | Communication means and system between a kind of terminal and video monitoring equipment |
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| CN101035251A (en) * | 2007-04-19 | 2007-09-12 | 中兴通讯股份有限公司 | IPTV service system based on the IP multimedia sub-system |
| CN101068343A (en) * | 2007-03-16 | 2007-11-07 | 中兴通讯股份有限公司 | Video frequency monitoring system based on IPTV system |
| CN101668189A (en) * | 2009-10-13 | 2010-03-10 | 中国电信股份有限公司 | Video monitoring method based on IPTV and system thereof |
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| CN101068343A (en) * | 2007-03-16 | 2007-11-07 | 中兴通讯股份有限公司 | Video frequency monitoring system based on IPTV system |
| CN101035251A (en) * | 2007-04-19 | 2007-09-12 | 中兴通讯股份有限公司 | IPTV service system based on the IP multimedia sub-system |
| CN101668189A (en) * | 2009-10-13 | 2010-03-10 | 中国电信股份有限公司 | Video monitoring method based on IPTV and system thereof |
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| CN108270995A (en) * | 2017-01-03 | 2018-07-10 | 中国移动通信有限公司研究院 | Communication means and system between a kind of terminal and video monitoring equipment |
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