WO2014110911A1

WO2014110911A1 - Fault processing method and apparatus in iptv system

Info

Publication number: WO2014110911A1
Application number: PCT/CN2013/083634
Authority: WO
Inventors: 孔韬
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-01-21
Filing date: 2013-09-17
Publication date: 2014-07-24
Also published as: CN103124368A

Abstract

The present invention provides a fault processing method and an apparatus in an IPTV system, wherein the method applies to an EPG server. The method comprises: detecting a specified fault type in the IPTV system; and for a user terminal for which a currently requested service is faulty in the IPTV system, performing an emergency measure corresponding to the specified fault type. According to a preceding technical scheme provided by the present invention, technical problems that an existing emergency processing way affects the entire IPTV system when a fault occurs inside the IPTV system and the like in related technologies are solved, thus ensuring that current user experience is not affected while properly ensuring interests of an operator.

Description

The present invention relates to the field of communications, and in particular to a fault processing method and apparatus in an Internet Protocol TV or Interactive Personal TV (IPTV) system. Background technique

IPTV uses broadband networks as the infrastructure, with home TVs or personal computers as the main display terminals, and uses a series of Internet bearer protocols and transmissions to provide home users with program-on-demand, live TV, web browsing, online games, time-shifted TV, A variety of interactive digital multimedia services such as Karabok, personal recording, information consultation, and new technologies for value-added business services. People can enjoy IPTV services through PC terminals, set-top boxes + TV sets, and multimedia mobile phones (for mobile IPTV). At present, the key node database and related service control modules in the IPTV system often fail, such as: magnetic array damage, database anomaly, network failure, system operation overload and other issues. After these problems occur, IPTV users are directly affected, which greatly affects the user experience. At present, in the field of IPTV, emergency methods are widely used to ensure a good business experience for users. The emergency mode is a scenario in which random and urgency emergencies occur, in order to ensure that the services that users are enjoying are not The special means taken for a long time interruption is also an important indicator for judging the robustness of the entire business management system. However, in the current emergency mode, manual triggering of the emergency can be used. However, manual intervention manually triggers the emergency, the delay is too strong, and the user is affected for too long. For this defect, the emergency can be triggered by setting the monitoring message, but currently This solution requires additional expansion of interface messages between modules, and once switched to the emergency state, the entire module or the system as a whole is switched to the emergency state. Although the user experience is guaranteed, because the emergency is an unconventional processing state, it will inevitably affect the accounting. And statistics and other functions will bring certain losses to operators. In view of the above problems in the related art, an effective solution has not yet been proposed. SUMMARY OF THE INVENTION In the related art, when an IPTV system is faulty, an existing emergency processing method may affect a technical problem such as the entire IPTV system. The embodiment of the present invention provides a fault processing method and apparatus in an IPTV system, to solve at least The above question. According to an embodiment of the present invention, a fault processing method in an IPTV system is provided, which is applied to an electronic program guide (EPG) server, the method comprising: detecting a specified fault type in an IPTV system; The user terminal in the IPTV system that is currently requesting service failure performs emergency measures corresponding to the specified fault type. Preferably, the specified fault type includes one of the following: a first fault type for indicating that the user terminal fails to log in to the IPTV system, and a second fault type for indicating that the user terminal requests a service failure from the home node, where the home node is used for The electronic program guide EPG information is provided to the user terminal. Preferably, the user terminal that fails the current request service in the IPTV system performs the emergency action corresponding to the specified fault type, and includes one of the following: when the fault type is the first fault type, corresponding to the user terminal saved according to the EPG. The user information is used to guide the user terminal to log in to the home node; when the fault type is the second fault type, the EPG information is directly provided to the user terminal through the home node. Preferably, before the EPG information is provided to the user terminal directly by the home node, the method further includes: determining that the number of times of requesting service identification reaches a first preset threshold, where, when the first preset threshold is reached, the home node is triggered to provide the EPG to the user terminal. information. Preferably, the method further includes: acquiring the number of user terminals that are currently requesting service failure; and when the quantity reaches the second preset threshold, switching the IPTV system to the network-wide emergency state. Preferably, before the IPTV system is switched to the emergency state of the entire network, the method further includes: sending the early warning information to the network management system of the IPTV system when the quantity reaches the second preset threshold; determining whether the data is received before the specified time period is reached. The notification message of the network emergency status, if no, the IPTV system is switched to the emergency state of the whole network. According to another embodiment of the present invention, a fault processing apparatus in an IPTV system is provided, which is applied to an EPG server, the apparatus comprising: a detecting module configured to detect a specified fault type in an IPTV system; and an execution module, set to be A single user terminal in the IPTV system performs emergency measures corresponding to the specified type of failure. Preferably, the detecting module is configured to detect a specified fault type of one of: a first fault type for indicating that the user terminal fails to log in to the IPTV system, and a second fault type for indicating that the user terminal requests the home node to fail the service, The home node is configured to provide electronic program guide EPG information to the user terminal. Preferably, the execution module is configured to, when the specified fault type is the first fault type, direct the user terminal to log in to the home node according to the user information corresponding to the user terminal saved by the EPG, and when the fault type is the second fault type. The EPG information is provided to the user terminal directly through the home node. Preferably, the apparatus further includes: an obtaining module, configured to acquire a quantity of each individual user terminal in the emergency measures corresponding to the specified fault type; and a switching module configured to: when the quantity reaches the second preset threshold, the IPTV The system switches to the emergency state of the whole network. With the embodiment of the present invention, when the specified fault type of the IPTV system is detected, only the emergency measures are performed for the current user terminal, and the emergency is not performed for the entire IPTV system. Therefore, in the related art, when the fault occurs in the IPTV system, The existing emergency treatment methods will affect the technical problems such as the entire IPTV system, so as to ensure that the current user experience is not affected, and the interests of the operators are better ensured. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flowchart of a fault processing method in an IPTV system according to Embodiment 1 of the present invention; FIG. 2 is a structural block diagram of a fault processing apparatus in an IPTV system according to Embodiment 1 of the present invention; FIG. 4 is a schematic structural diagram of a set top box (STB) and an IPTV capability platform according to Embodiment 2 of the present invention; FIG. 4 is a schematic structural diagram of a fault processing apparatus in an IPTV system according to Embodiment 1 of the present invention; A flowchart of a single-user emergency processing method according to Embodiment 2 of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. Embodiment 1 FIG. 1 is a flowchart of a failure processing method in an IPTV system according to Embodiment 1 of the present invention. This method is applied to an electrical EPG server. As shown in Figure 1, the method includes: Step S102: Detecting a specified fault type in the IPTV system. Step S104: Perform emergency measures corresponding to the specified fault type for the user terminal in the IPTV system that is currently requesting service failure. Through the above processing steps, since the emergency measures are only performed on the user terminal that currently fails the requested service, it is possible to prevent the emergency measures from being performed on the entire IPTV system once the current user fails. In this embodiment, the specified fault type may include, but is not limited to, one of the following: 1. A first fault type used to indicate that the user terminal fails to log in to the IPTV system, 2. The user terminal is instructed to request a service failure from the home node. A second type of failure, wherein the home node is configured to provide electronic program guide EPG information to the user terminal. For the first fault type, when the fault type is the first fault type, the user terminal is directed to log in to the home node according to the user information corresponding to the user terminal saved by the EPG. Specifically, the following processing may be performed (illustrated by taking a single user as an example, but not limited to a single one, and may be two, three, etc.): User terminal (referred to as a user) When logging in to the IPTV system capability platform, when the user logs in to the EPG, The load balancing request and the user authentication request fail due to the service processing module of the IPTV service system, database overload or downtime, and network congestion. At this time, the EPG starts the user automatic emergency and routes according to the user information saved by itself. Directing the user to log in to the home node (home EPG) (according to the principle of providing the nearest service, the EPG can be the closest to the current user and the home node being served), and the template previously used by the user is correctly obtained for use in Displayed on the TV. If a set-top box user is in a single-user emergency state, all subsequent business processes of the user go through the emergency process: the user login needs to be negotiated with the management platform, and the authentication code cannot be obtained correctly due to an abnormality in the service processing module. In order to ensure that the user experience is not affected, the user is switched to the single-user emergency state, and an authentication code is constructed to allow the user to successfully log in. Because it is a fictitious authentication code, the authentication code is not authenticated on the management platform. Therefore, the subsequent business process of this user can only be an emergency process, and can no longer be authenticated or ordered by the business processing module and the management platform. For the second fault type described above, when the fault type is the second fault type, the EPG information is directly provided to the user terminal through the home node. Before the EPG information is provided to the user terminal by the home node, the number of times the service identification is requested may be determined to reach a first preset threshold. When the first preset threshold is reached, the home node is triggered to provide EPG information to the user terminal. Specifically, it can be expressed as the following implementation process: When the user has successfully logged in to the home EPG, the service processing module of the IPTV service system or the database is down, the network is congested, etc., and the user service message is directly processed, but the user is not switched. The single-user emergency status, but within the set time range, the user's service request message fails to reach the set threshold due to the service processing module or database downtime, network congestion, etc., and then the user is switched to the single User emergency status. This is also the place where the single-user emergency is different for the login process and the normal point and live broadcast process. If the set-top box user fails to log in because of the reason of the authentication code, the user must be switched to the single-user emergency state immediately, but the service request after the login fails, but can be switched to the single-user emergency state after multiple attempts. In order to ensure the user's best browsing experience, the order package and service bills are not affected even when the system is occasionally abnormal, so as to ensure the interests of the operators to the greatest extent. In this embodiment, the number of the user terminals needs to be considered: the number of user terminals that have failed to request the current service is obtained; when the number reaches the second preset threshold, the IPTV system is switched to the emergency state of the entire network. Before the IPTV system is switched to the emergency state of the entire network, the warning may also be first: when the quantity reaches the second preset threshold, the warning information is sent to the network management system of the IPTV system; and it is determined whether the cancellation is received before the specified time period is reached. The notification message of the emergency status of the entire network, if no, the IPTV system is switched to the emergency state of the whole network. If yes, the IPTV system is not switched to the emergency state of the entire network. Specifically, it can be expressed as the following implementation process: After the number and proportion of the single-user emergency in the unit time reaches the set safety threshold, the service processing module and the DB appear to be down and other serious faults, in order to further improve the user's login. Speed and page browsing response speed, the system starts a system-wide emergency. At this time, a pre-emergency alarm message is sent to the network management system and the relevant maintenance personnel are notified by SMS. The purpose is to notify the maintenance personnel to process as soon as possible, instead of not actually switching to the system-wide emergency. The status, but after the warning time exceeds the set value, the maintenance personnel does not cancel the pre-emergency state within the threshold time, then the system automatically switches to the system-wide emergency state. At this time, the IPTV system will assign an authentication code when the user logs in. This authentication code has an expiration date, usually 8 hours. After 8 hours, the authentication code is invalid, and the user needs to re-acquire the new authentication on the management platform. Code, so the set-top box user can return to normal after the authentication code expires or the set-top box is turned off again. In this embodiment, a fault processing apparatus in an IPTV system is further provided, which is applied to an EPG server, and is used to implement the foregoing embodiments and preferred embodiments. The modules involved are explained. As used hereinafter, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable. 2 is a block diagram showing the structure of a failure processing apparatus in an IPTV system according to Embodiment 1 of the present invention. As shown in Figure 2, the device includes: The detecting module 20 is connected to the executing module 22, and is configured to detect a specified fault type in the IPTV system. The executing module 22 is configured to perform an emergency measure corresponding to the specified fault type to a single user terminal in the IPTV system. In this embodiment, the detecting module 20 is configured to detect a specified fault type of one of the following: a first fault type for indicating that the user terminal fails to log in to the IPTV system, and a third for indicating that the user terminal requests the home node to fail the service. The second fault type, where the home node is used to provide EPG information to the user terminal. In this embodiment, the execution module 22 is configured to, when the specified fault type is the first fault type, direct the user terminal to log in to the home node according to the user information corresponding to the user terminal saved by the EPG, and the fault type is In the case of the two types of failures, the EPG information is provided to the user terminal directly through the home node. In this embodiment, as shown in FIG. 3, the apparatus may further include the following processing module: an obtaining module 24, connected to the detecting module 20 and connected to the switching module 26, configured to acquire emergency measures corresponding to the specified fault type. The number of each individual user terminal is; the switching module 26 is configured to switch the IPTV system to the network-wide emergency state when the number reaches the second preset threshold. In order to better understand the above-described Embodiment 1, the following will be described in detail in conjunction with Embodiment 2 and related drawings. Embodiment 2 This embodiment mainly provides single-user emergency monitoring and strategy for an IPTV system, and can maximize the user experience and the operator's interests without additionally adding messages and modules, and minimally changing the existing system. The degree is guaranteed. This embodiment is mainly for the operator's IPTV capability platform system. Here, only the STB set-top box and

The process and structure of the IPTV capability platform are not detailed on the management platform. To achieve the above objective, the technical solution adopted in this embodiment is as follows: As shown in FIG. 4, the IPTV system includes: an STB 40, an IPTV capability platform 42, an EPG server 44, an IPTV service system 46, and a network management system 48. STB 40: The set-top box is an IPTV terminal device placed in the user's home. One end is connected to the Internet (Internet), and one end is connected to the user's TV. As a bridge between the TV and the IPTV system, it is responsible for implementing audio and video streams. Codec, template page download, login authentication, etc. Users can obtain related services from the operator's IPTV system through the set-top box, such as: live audio, on-demand, time shift, look back and other interactive audio and video services; and provide value-added applications such as information browsing, electronic advertising, online games, and distance education.

IPTV capability platform 42: The service management platform is responsible for user management, billing management, service management/authentication, SP/CP management, terminal management, content management, etc.; the service capability platform provides support capabilities to the service management platform, and manages EPG networks and content. Distribution Network (Content Ddlivery Network, CDN for short) Network two major components.

EPG Server 44: EPG is the portal for users to access the IPTV system. Can be considered a WEB server. It is mainly used to accept the request of the set-top box, and complete the triggering of different processes according to the request; download the template page; store relevant user information and program information; and indirectly provide the corresponding unified resource identifier (Uniform Resource Locator, referred to as URL) for the set-top box ( For playback and so on.

IPTV service system 46: Mainly responsible for logic judgment such as login authentication and service authentication on the capability platform side, extraction trigger and write trigger of various information (mainly extracted and written from the service database oracle), and billing management, etc. Business processor and business database (data files are placed on the magnetic array). Network Management System 48: The IPTV network management system includes management of system network elements (such as service system servers, EPG, etc.) and management of terminal (eg, STB) network elements. The main functions include topology view management, fault management, configuration management, performance management, security management, terminal management, report management, log management, etc. In this patent, the network management system is mainly responsible for receiving display alarm messages and sending alarm short messages to operation and maintenance. Personnel, in order to deal with system failures in a timely manner, as soon as possible to release the emergency state. FIG. 5 shows the whole process of determining whether to initiate a single-user emergency and related policies when performing a service operation after the STB login capability platform, including the following steps: Step S502, the STB set-top box initiates login authentication to the authentication server; Step S504, if the authentication server After the authentication is passed, the authentication is returned to the set-top box through the return message, and the access address of the capability platform is carried; the authentication server is a management platform function module. Currently, the IPTV system 2.0 architecture is divided into a management platform and a capability platform, and the management platform is for managing users and packages. The content platform is the platform that actually provides the IPTV server; this patent is for the EPG server on the capability platform side. This is just to introduce the complete set-top box login process so an additional explanation. Step S506, the STB set top box jumps to the EPG of the IPTV capability platform according to the address returned by the authentication server; Step S508, the EPG initiates a user login authentication request to the IPTV service system, requesting the user information of the home EPG, the home node, and the template used by the STB set-top box; Step S510, the service system overload, and the database (DateBase, referred to as DB) abnormality The next service processing system will directly return the failure message; the network congestion, the service system will cause the request message to fail to be sent normally when the opportunity occurs, or the message will be timed out and no response. When the EPG encounters these two types of errors, it will directly initiate a single-user emergency, and if the normal user authentication fails to log in, the single-user emergency will not be triggered. In step S512, the EPG determines that the message described in step S510 fails, The user enables single-user emergency, and the user in the single-user emergency state, all subsequent operations are urgently processed, that is, there is no need to go to the business system to authenticate and order, EPG defaults that this user subscribes to all the packages, any on-demand The program defaults to authentication, and does not need to go to the service system to authenticate. Therefore, the premise of step S516 and subsequent steps is that the set-top box user does not enable single-user emergency, which is a normal user. After successfully logging in to the EPG. It is still necessary to go to the business system for normal authentication and ordering; Step S514, after the EPG initiates the single-user emergency, the user information is found according to the emergency data saved by itself, including the home EPG, the home node, etc., and is returned to the STB set-top box, so that the set-top box can be smoothly completed. Log in to the IPTV system and perform normal operations; Step S516, STB The top box login belongs to the EPG, starts normal user operation, browses the template page, etc.; Step S518, when the STB set top box user selects to order a program or channel, the EPG sends a service authentication message to the service system; Step S520, the same step S510, when two types of abnormalities occur, the service authentication fails; in step S522, the EPG performs a single message level emergency, that is, an emergency current message, and the life cycle is the current message, and the current service message fails, and the direct success is passed. Let the STB set-top box go smoothly; here is different from the processing in the login process, although it is because the business system is overloaded or the network is congested, and the business system and database are down, but the login process directly switches the user. In the single-user emergency state, the on-demand service process does not immediately switch the user to the single-user emergency state, but directly causes the current request message to successfully pass, and the user state does not make any adjustment; the reason for the difference processing is: Need to negotiate with the management platform Authentication code, because the service processing module has an abnormality, this authentication code cannot be obtained correctly. In order to ensure that the user experience is not affected, the user is switched to the single-user emergency state, and the EPG fictitiously creates an authentication code to allow the user to Successful login, because it is a fictitious authentication code, this authentication code is not authenticated in the business system and management platform, so the subsequent business process of this user can only be emergency, and can no longer go to the business processing module and management. The platform goes to the authentication or order. In step S524, the EPG initiates a message emergency, so the authentication is successfully returned to the STB set top box. Step S526, at the same time, the home EPG also counts the number of times and frequency of the continuous message of the user. After reaching the set threshold within a certain period of time, the user is also switched to the single-user emergency. Principle: Improve the user experience, Do not allow a user to wait multiple times; to determine whether to switch to a single-user emergency strategy, you can set different policies according to different sites, different templates, different users, different user habits, for example: number of consecutive message emergency within 1 minute If the total number of times reaches 5, the user will be switched to the single-user emergency state. There are three prerequisites that are indispensable. Within 1 minute, continuous, cumulatively reaches 5 times; if there is no satisfaction, it will not switch to single-user emergency. Step S528: After the message emergency of the single user meets the set threshold, the EPG initiates a single-user emergency; in step S530, the EPG starts the statistics of the continuous single-user emergency; Step S532, when the EPG has a single user emergency number After the frequency reaches the set threshold, the current EPG starts.

EPG emergency, and send the whole network EPG pre-emergency alarm message to the network management; whether to switch to EPG emergency can set different strategies according to different sites, different templates, different users, different user habits, for example: switch to user within 5 minutes If the number of emergency has reached 300, the current EPG is switched to the emergency state; in step S534, the EPG switches to the emergency state, and starts the EPG emergency countdown of the whole network, for example: setting the countdown to 30 minutes, that is, giving the maintenance personnel 30 minutes. Positioning the problem to solve the problem, after 30 minutes, if the fault is not resolved, the EPG pre-emergency state of the whole network is not released, then all the EPGs of the whole system are switched to the emergency state, and the whole network emergency is started; if the fault is solved within 30 minutes, then The EPG pre-emergency state of the entire network can be released in the operation and maintenance portal. Other EPGs in the system will not switch to the emergency state, and the EPG that is already in the emergency state can be switched to the normal state. In another embodiment, software is also provided for performing the technical solutions described in the above embodiments and preferred embodiments. In another embodiment, a storage medium is provided, the software being stored, including but not limited to: an optical disk, a floppy disk, a hard disk, a rewritable memory, and the like. As can be seen from the above embodiments, the key to the foregoing embodiment is that, when an IPTV system experiences an overload of a service system, a network congestion, or an unstable state for a period of time, the user experience is ensured to be unaffected and the maximum degree is also Ensure that the interests of the operators are not lost, and seek an optimal solution in both. Moreover, it is possible to make small improvements based on the existing message flow and framework structure without additional business information. In addition, when an abnormality of the service system program and a serious unrecoverable problem such as a database crash occur in the IPTV system, the diagnosis method and strategy in the above embodiment can also make a timely judgment, and can automatically switch the entire IPTV system to the whole. The network emergency status, and the first time to issue an alarm and SMS to notify the operation and maintenance personnel to carry out emergency repair. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention. INDUSTRIAL APPLICABILITY The above technical solution provided by the present invention can be applied to a fault processing process of an IPTV system, and when a specified fault type of the IPTV system is detected, only emergency measures are performed for the current user terminal, and not for the entire IPTV system. The emergency technical means solves the related problems in the related technology. When the IPTV system is faulty, the existing emergency processing method will affect the technical problems such as the entire IPTV system, so as to ensure that the current user experience is not affected, and better ensure The interests of the operators.

Claims

Claim

1. An interactive network television IPTV system for fault handling, applied to an electronic program guide server EPG, comprising:

Detecting the type of specified fault in the IPTV system;

The user terminal that fails the current request service in the IPTV system performs an emergency measure corresponding to the specified fault type.

2. The method according to claim 1, wherein the specified fault type comprises one of the following:

a first fault type for indicating that the user terminal fails to log in to the IPTV system, and a second fault type for instructing the user terminal to request a service failure from the home node, where the home node is used for the user The terminal provides electronic program guide EPG information.

The method according to claim 2, wherein the user terminal in the IPTV system that is currently requesting service failure performs emergency measures corresponding to the specified fault type, including one of the following: When the first fault type is used, the user terminal is directed to log in to the home node according to the user information corresponding to the user terminal saved by the EPG;

When the fault type is the second fault type, the EPG information is directly provided to the user terminal by the home node.

The method according to claim 3, wherein, before the providing, by the home node, the EPG information to the user terminal, the method further includes:

Determining that the number of times the request service is identified reaches a first preset threshold, where the home node is triggered to provide the EPG information to the user terminal when the first preset threshold is reached.

The method according to any one of claims 1 to 4, further comprising: acquiring a number of user terminals that currently request a service failure;

And when the quantity reaches a second preset threshold, the IPTV system is switched to a network-wide emergency state.

The method according to claim 5, wherein before the switching the IPTV system to the emergency state of the whole network, the method further includes:

Sending the early warning information to the network management system of the IPTV system when the quantity reaches the second preset threshold; It is determined whether the notification message for releasing the emergency state of the entire network is received before the specified time period is reached, and if not, the IPTV system is switched to the emergency state of the entire network. A fault processing apparatus in an interactive network television IPTV system is applied to an electronic program guide EPG server, including:

a detection module configured to detect a specified fault type in the IPTV system;

And an execution module, configured to perform an emergency measure corresponding to the specified fault type for a single user terminal in the IPTV system. The apparatus according to claim 7, wherein the detecting module is configured to detect a specified fault type of one of:

a first fault type for indicating that the user terminal fails to log in to the IPTV system, and a second fault type for instructing the user terminal to request a service failure from the home node, where the home node is used for the user The terminal provides electronic program guide EPG information. The device according to claim 8, wherein the execution module is configured to: according to the user information corresponding to the user terminal saved by the EPG, when the specified fault type is the first fault type, The user terminal logs in to the home node, and when the fault type is the second fault type, directly provides the EPG information to the user terminal through the home node. The apparatus according to any one of claims 7 to 9, further comprising:

And an obtaining module, configured to obtain a quantity of each of the single user terminals that need to perform emergency measures corresponding to the specified fault type;

And a switching module, configured to switch the IPTV system to a network-wide emergency state when the quantity reaches a second preset threshold.