WO2007068213A1 - Systeme de distribution d'iptv, appareil utilisateur d'iptv et procedes associes - Google Patents

Systeme de distribution d'iptv, appareil utilisateur d'iptv et procedes associes Download PDF

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Publication number
WO2007068213A1
WO2007068213A1 PCT/CN2006/003437 CN2006003437W WO2007068213A1 WO 2007068213 A1 WO2007068213 A1 WO 2007068213A1 CN 2006003437 W CN2006003437 W CN 2006003437W WO 2007068213 A1 WO2007068213 A1 WO 2007068213A1
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WO
WIPO (PCT)
Prior art keywords
program
channel
unit
information
switching
Prior art date
Application number
PCT/CN2006/003437
Other languages
English (en)
French (fr)
Inventor
Lu Han
Original Assignee
Tencent Technology (Shenzhen) Company Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tencent Technology (Shenzhen) Company Limited filed Critical Tencent Technology (Shenzhen) Company Limited
Priority to BRPI0619957A priority Critical patent/BRPI0619957B1/pt
Publication of WO2007068213A1 publication Critical patent/WO2007068213A1/zh
Priority to US12/139,689 priority patent/US20080276292A1/en

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Classifications

    • 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 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25808—Management of client data
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2665—Gathering content from different sources, e.g. Internet and satellite
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47214—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for content reservation or setting reminders; for requesting event notification, e.g. of sport results or stock market
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests

Definitions

  • Network television distribution system Network power client device and method
  • the present invention relates to network television technology, and more particularly to a network television distribution system, a network television client device and a method. Background of the invention
  • P2P Peer to Peer
  • CS Client Server
  • the P2P structure does not function as a central server or a central server.
  • P2P technology has the advantage of making full use of resources such as storage space, CPU and bandwidth for each user, and at the very low cost of operation and maintenance.
  • Streaming media refers to the multimedia files transmitted by the application streaming technology on the network.
  • the so-called streaming technology is to compress and process the continuous video and audio information and upload it to the network server. Users can download video and audio information while watching and listening. Wait for the entire compressed file to be downloaded before you can watch it.
  • non-finishing theater is a movie channel in which an animation picture comes from one program source and an action movie comes from another program source.
  • FIG. 1 shows the structure of a prior art network television system including at least one network television client 101, a program distribution unit 102, and at least one program providing unit 103.
  • the network television client 101 is configured to send a network television viewing request to the program issuing unit 102 according to a manual instruction of the user; or, for receiving the program data delivered by the program publishing unit 102, decrypting the program data and presenting it to the user.
  • the program distribution unit 102 is configured to collect program data storage from the corresponding program providing unit 103 according to the current program address of each channel, and after receiving the network television viewing request of the network television client 101, encrypt the corresponding program data. hair.
  • the program providing unit 103 is configured to play the program saved by itself, and after receiving the data collection request from the program distribution unit 102, transmits the program data being played to the program distribution unit 102 via a cable television line or the like.
  • the network television client 101 may also be the program providing unit 103 that holds the program source.
  • the manager can only manually switch the program address on the program distribution unit 102.
  • the administrator needs to frequently modify the system settings, which increases the unreliability of program viewing and the operating cost of the network television.
  • the invention provides a network television publishing system, a network television client device and a method, and the main technical solutions are as follows:
  • a network television distribution system comprising a program distribution unit, wherein the program distribution unit is configured to issue a channel program of the network television;
  • the system further includes: a switching information recording unit and a channel program switching unit; the switching information recording unit configured to record and monitor channel switching information, and issue a startup instruction to the channel program switching unit according to the monitoring situation;
  • the channel program switching unit is configured to receive an activation indication, according to channel switching information Switching the program source of the corresponding channel on the program distribution unit.
  • a network television publishing method comprising:
  • a network television client device comprising: a network television processing unit and an opening information recording unit;
  • the opening information recording unit is configured to record and monitor a timed opening information set by the user, and issue a startup instruction to the network television processing unit according to the monitoring situation;
  • the network television processing unit is configured to receive an activation indication, obtain corresponding timing activation information from the information recording unit, send a network television viewing request according to the information, and receive and/or play the network television.
  • a network television opening method is applied to a network television client device, the device is provided with a network television processing unit and an opening information recording unit, and the method comprises:
  • the network television processing unit obtains the corresponding timing on information from the opening information recording unit, and issues a network television viewing request according to the timing opening information.
  • the network television publishing system and method of the present invention pre-set channel switching information, and when the system reaches the switching time, the system can automatically trigger the switching of the program source of the corresponding channel, thereby reducing the component and operating cost of the manual intervention. Make the operation and operation of the entire system more convenient and stable.
  • Embodiments of the present invention also provide a network television client device and an opening method, in a network
  • the TV client sets the opening information, and the client automatically starts at a predetermined time according to the opening information, and issues a network television viewing request.
  • the user can preset the channel to be watched and the viewing time so as not to forget to watch the favorite program, which greatly improves the user experience.
  • FIG. 1 is a structural diagram of a network television system in the prior art
  • FIG. 2 is a structural diagram of a network television distribution system according to an embodiment of the present invention
  • FIG. 3 is a flowchart of distributing a network television according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a network television client device according to an embodiment of the present invention
  • FIG. 5 is a flowchart of turning on a network television according to an embodiment of the present invention. Mode for carrying out the invention
  • Embodiments of the present invention provide a network television distribution system capable of automatically switching a program source in the same channel according to a preset setting.
  • a method for distributing a network television is also provided, which automatically reduces program manual switching in the network television distribution system, reduces manual operation of the manager, and improves system stability.
  • Embodiments of the present invention also provide a network television client device that can automatically turn on and locate a preset channel, reducing manual participation of the user. Accordingly, a network television activation method is also provided, which enables the network television client device to perform channel location at a predetermined time to obtain a program presentation to the user, thereby improving the user experience.
  • the switching information recording unit 202 includes: an information storage center 2021 and a monitoring module 2022.
  • the channel switching setting unit 201 is configured to set channel switching information, and save the information to the information storage center 2021 of the switching information recording unit 202.
  • the implementation of the channel switching setting unit 201 is various, and may be an HTTP operation page, a client application of a C/S structure, or the like.
  • the information storage center 2021 is configured to store channel switching information, an operation log, and the like, and may be a database.
  • the channel switching information includes: a channel identifier to be switched, an old program source address, a new program source address, a switching time, an alarm mode, and a backup operation of the handover failure.
  • a monitoring module 2022 configured to automatically start when the network television distribution system is powered on, view all records of the information storage center 2021, and send out to the channel program switching unit 203 when detecting that some or some records arrive at a predetermined time. Start instructions.
  • the monitoring module 2022 periodically checks the information storage center 2021 to save system resources. For example, the monitoring module 2022 divides the time into segments and performs a test at each time slice.
  • the channel program switching unit 203 is configured to: after receiving the activation instruction, acquire the corresponding record from the information storage center 2021, perform program source switching on the corresponding channel on the program distribution unit 204 according to the channel switching information in the record, and record the switching. Log.
  • the channel program switching unit 203 finds the corresponding program providing unit 206 based on the old program source address, and stops the playback of the old program source on the program providing unit 206.
  • the channel program switching unit 203 finds the corresponding program providing unit 206 based on the new program source address, and plays the new program source saved thereon.
  • the program providing unit 206 corresponding to the old and new program source addresses may be the same or different web server or client.
  • the channel program switching unit 203 and the program providing unit 206 are generally located in the same network.
  • the channel program switching unit 203 notifies the program issuing unit 204 of the new program source address and the corresponding channel identifier, and notifies the program issuing unit 204 to change the channel setting, and the program issuing unit 204 points the channel identifier to point the program address of the corresponding channel.
  • the new program source address
  • the channel program switching unit 203 performs error processing based on the backup operation provided in the channel switching information. If the handover is successful, the channel program switching unit 203 notifies all the network television clients 205 currently on the line to perform program updates. After receiving the program update message, the IPTV client 205, if it is watching the program itself, re-sends the request to the program distribution unit 204 to obtain the updated program data.
  • the components, functions, and interconnections of the program distribution unit 204, the network television client 205, and the program providing unit 206 are the same as those in the prior art in FIG. 1, and are not described herein again.
  • the network television publishing method in this embodiment is as shown in FIG. 3, and the method can automatically switch between different program sources of the same channel, including the following steps:
  • Step 301 The administrator presets the channel switching information through the channel switching setting unit, and saves the channel switching information in the information storage center, and each channel switching information is a record in the information storage center.
  • Step 302 The monitoring module detects all the records saved in the information storage center, and determines whether there is a record reaching a predetermined time. If not, step 302 is repeated, otherwise step 303 is performed.
  • the monitoring module can set the detection timing of all records as needed. Set, such as real-time detection.
  • the monitoring module divides the time into segments and performs timed loop detection according to the time slice. For example, divide 1 second into 1000 time slices, and each time slice (ie, every 1 millisecond) is detected once.
  • Step 303 The monitoring module sends a start instruction to the channel program switching unit, and the start instruction carries all the record numbers that arrive at the predetermined time in the current detection.
  • Step 304 After receiving the activation indication, the channel program switching unit acquires corresponding channel switching information from the information storage center according to the record number, and notifies the program publishing unit to complete the program source switching of the corresponding channel.
  • Step 305 The program publishing unit collects program data from the new program source address according to the switched setting, and distributes the program data to the network television client.
  • the administrator can pre-set the program to be released, and automatically release the program when the release time is reached, without manual intervention. For example: On Friday, the manager set up the NBA regular season program to be released on Sunday. In this way, the management does not need to wait for the company to manually publish on Sunday, and the system will automatically publish the NBA program.
  • the network television client device in one embodiment of the present invention includes: a channel program pre-determining unit 401, an opening information recording unit 402, and a network television processing unit 403.
  • the open information recording unit 402 includes: an information storage center 4021 and a monitoring module 4022.
  • the channel program presetting unit 401 is configured to preset the timing on information, and save the information in the information storage center 4021 of the open information recording unit 402.
  • the implementation of the channel program presetting unit 401 is various, and may be an HTTP operation page, a client application of a C/S structure, or the like. '
  • the positioning information includes a boot time, a channel identifier, and a reminder manner, such as an information reminder or directly starting a network television client.
  • the monitoring module 4022 is configured to view all records of the information storage center 4021 and issue an activation indication to the network television processing unit 403 upon detecting that some or some of the records arrive at the predetermined time.
  • the network television processing unit 403 is configured to obtain a corresponding record from the information storage center 4021 according to the startup instruction, and issue a network television viewing request according to the timing start information in the record, requesting to obtain program data of the corresponding channel;
  • the unit 403 is also used to send a network television viewing request, and receive and/or play a network television.
  • the function is the same as that of the network television client 101 in FIG. 1 , and details are not described herein again.
  • the process of the client periodically turning on and automatically positioning the channel is as shown in FIG. 5, and includes the following steps:
  • Step 501 The user presets the timing on information through the channel program presetting unit, and saves the timing on information in its own information storage center.
  • Step 502 The monitoring module detects all records saved in the information storage center, and determines whether a record arrives at a predetermined time. If not, step 502 is repeated, otherwise step 503 is performed.
  • Step 503 The monitoring module sends a startup indication to the network television processing unit, where the startup indication carries all the record numbers that arrive at the predetermined time in the current detection.
  • Step 504 After receiving the activation indication, the network television processing unit acquires corresponding positioning information according to the record number in the information storage center, and issues a network television viewing request according to the obtained positioning information.
  • the network television distribution system, the client device and the method of the present invention can automatically perform operations such as switching, powering on, or locating channels when a predetermined time is reached, thereby reducing the component and operating cost of manual intervention. It makes the operation and operation of the whole system more convenient and stable, and greatly improves the user experience.

Description

网络电视发布系统、 网络电 客户装置和方法
技术领域
本发明涉及网络电视技术， 尤指一种网络电视发布系统、 网络电 视客户装置和方法。 发明背景
点对点 （P2P, Peer to Peer )是宽带环境下的一种新型网络结构， 与传统的客户服务器 （CS, Client Server )模式不同的是， P2P结构 没有中心 Server或中心 Server起的作用很微弱。与传统 CS模式相比， P2P技术的优势在于能够充分利用每一个用户的存储空间、 CPU和带 宽等资源， 且只要花费极低的运营和维护成本。
在现有的网络电视中， 一般采用 P2P技术实现流媒体的直播， 比 如利用 IPTV在互联网上直播体育节目等。 流媒体是指应用流技术在 网络上传输的多媒体文件，所谓流技术就是将连续的影像和声音信息 经过压缩处理后上传至网络服务器， 用户可以边下载影像和声音信 息， 边观看、 收听， 不需等待整个压缩文件下载完毕才能观看。
网络电视系统中设置有多个频道， 每个频道都有多个节目源， 能 为用户提供不同节目。 比如， "非寻影院"就是一个电影频道， 其中动 画片来自一个节目源， 动作片来自另一个节目源。
图 1显示的是现有的一种网络电视系统的结构， 包括至少一个网 络电视客户端 101、节目发布单元 102和至少一个节目提供单元 103。
其中， 网络电视客户端 101用于根据用户的手动指令， 向节目发 布单元 102 发出网络电视收看请求； 或者， 用于接收节目发布单元 102下发的节目数据， 对其进行解密后呈现给用户。 节目发布单元 102用于根据每个频道的当前节目地址， 从对应的 节目提供单元 103 采集节目数据保存， 并在接收到网络电视客户端 101的网络电视收看请求后， 将对应节目数据加密后下发。
节目提供单元 103用于播放自身保存的节目， 并在接收到节目发 布单元 102的数据采集请求后，将正在播放的节目数据通过有线电视 线等通道发送给节目发布单元 102。
此外， 对于采用 P2P技术的网絡电视系统而言， 网络电视客户端 101也可以是保存节目源的节目提供单元 103。
上述系统中， 某个频道的节目源需要变化时， 管理人员只能手工 在节目发布单元 102上进行节目地址切换。 这样， 如果同一个频道要 在不同时间播放不同节目， 就需要管理人员频繁地修改系统设置， 这 会增加节目观看的不可靠性和网絡电视的运营成本。
另外， 用户在网上观看电视节目时， 也需要人工开启网絡电视， 并对频道进行手动搜索。如果用户没有记住某个节目的播放时间和频 道， 就会错过自身喜欢的节目。 发明内容
本发明提供一种网絡电视发布系统、 网络电视客户装置和方法， 主要技术方案如下：
一种网络电视发布系统， 该系统包括节目发布单元， 所述节目发 布单元用于发布网絡电视的频道节目；
该系统进一步包括： 切换信息记录单元和频道节目切换单元； 所述切换信息记录单元， 用于记录并监控频道切换信息， 根据监 控情况向频道节目切换单元发出启动指示；
所述频道节目切换单元， 用于接收启动指示， 根据频道切换信息 切换节目发布单元上对应频道的节目源。
一种网络电视发布方法， 该方法包括：
预先设置并记录频道切换信息；
确定对应记录到达切换时间时， 发出启动指示；
根据所述启动指示获取对应的频道切换信息，对频道进行节目源 切换。
一种网络电视客户装置， 该装置包括： 网络电视处理单元和开启 信息记录单元；
所述开启信息记录单元， 用于记录并监控用户设置的定时开启信 息， 根据监控情况向网络电视处理单元发出启动指示；
所述网络电视处理单元， 用于接收启动指示， 从开启信息记录单 元获取对应的定时开启信息， 根据所述信息发出网絡电视收看请求， 并接收和 /或播放网络电视。
一种网络电视开启方法， 应用于网络电视客户装置， 该装置设置 有网络电视处理单元和开启信息记录单元， 该方法包括：
预先设置并记录定时开启信息； ·
开启信息记录单元确定对应记录到达预定时间时， 向网络电视处 理单元发出启动指示；
网络电视处理单元到开启信息记录单元获取对应的定时开启信 息， 并根据定时开启信息发出网络电视收看请求。
由上述技术方案可见， 本发明的这种网络电视发布系统和方法， 预先设置频道切换信息， 系统在到达切换时间时， 能够自动触发对应 频道的节目源切换， 减少人工干预的成分和运营成本， 使得整个系统 的操作和运行更为方便、 稳定。
本发明的实施例还提供了网络电视客户装置和开启方法， 在网络 电视客户端设置开启信息，所述客户端根据开启信息在预定时间自动 启动， 发出网络电视收看请求。 基于上述装置和方法， 用户能够预先 设定要收看的频道和收看时间， 以免忘记观看喜爱的节目， 极大地提 高了用户体验。 附图简要说明
图 1为现有技术中网络电视系统的结构图；
图 2为本发明一个实施例中网络电视发布系统的结构图； 图 3为本发明一个实施例中发布网络电视的流程图；
图 4为本发明一个实施例中网络电视客户装置的示意图； 图 5为本发明一个实施例中开启网絡电视的流程图。 实施本发明的方式
以下参照附图并举实施例， 对本发明的内容进行详细说明。
本发明的实施例提供一种网络电视发布系统， 该系统能够根据预 先设置， 自动在同一个频道内进行节目源切换。 相应地， 还提供一种 网络电视发布方法， 通过在网络电视发布系统中自动进行节目源切 换， 减少管理人员的手动搡作， 提高系统的稳定性。
本发明的实施例还提供一种网络电视客户装置， 该客户装置能够 自动开启并定位到预设频道， 减少用户的手动参与。 相应地， 还提供 一种网络电视开启方法，使得网络电视客户装置能够在预定时间进行 频道定位， 获取节目呈现给用户， 从而提高用户体验。
图 2显示的是本发明一个实施例中网络电视发布系统的结构， 包 括频道切换设置单元 201、 切换信息记录单元 202、 频道节目切换单 元 203、 节目发布单元 204、 至少一个网络电视客户端 205和至少一 个节目提供单元 206。 其中， 切换信息记录单元 202包括： 信息存储 中心 2021和监视模块 2022。
频道切换设置单元 201 , 用于设置频道切换信息， 并将所述信息 保存到切换信息记录单元 202的信息存储中心 2021。
所述频道切换设置单元 201的实现较为多样， 可以是 HTTP操作 页面， 也可以是 C/S结构的客户端应用程序等。
信息存储中心 2021 , 用于保存频道切换信息和操作日志等， 可以 是一个数据库。 所述频道切换信息包括： 待切换的频道标识、 旧节目 源地址、 新节目源地址、 切换时间、 告警方式以及切换失败的后备操 作等。
'监视模块 2022, 用于在所述网络电视发布系统开机时自动启动， 查看信息存储中心 2021 的所有记录， 并在检测到某个或某些记录到 达预定时间时， 向频道节目切换单元 203发出启动指示。
一般情况下， 监视模块 2022会定时对信息存储中心 2021进行检 测， 以节约系统资源。 比如， 监视模块 2022将时间划分成若干片段， 并在每个时间片执行一次检测。
频道节目切换单元 203， 用于在接收到启动指示后， 到信息存储 中心 2021获取对应记录， 根据该记录中的频道切换信息， 对节目发 布单元 204上的对应频道进行节目源切换， 并记录切换日志。
上述节目源切换的过程具体为：
1 ) 频道节目切换单元 203根据旧节目源地址查找到对应的节目 提供单元 206, 并停止所述旧节目源在所述节目提供单元 206上的播 放。
2 )频道节目切换单元 203根据新节目源地址查找到对应的节目 提供单元 206, 并播放其上保存的所述新节目源。 此处，新旧节目源地址对应的节目提供单元 206可以是同一个或 不同的网络服务器或用户端。频道节目切换单元 203和节目提供单元 206一般都位于同一个网络中。
3 ) 频道节目切换单元 203将新节目源地址和对应的频道标识告 知节目发布单元 204, 并通知节目发布单元 204更改频道设置， 节目 发布单元 204 ·ί居频道标识，将对应频道的节目地址指向所述新节目 源地址。
上述过程中， 如果切换失败， 频道节目切换单元 203根据频道切 换信息中提供的后备操作， 进行错误处理。 如果切换成功， 频道节目 切换单元 203会通知当前在线的所有网络电视客户端 205进行节目更 新。 网络电视客户端 205接收到节目更新消息后， 如果自身正在收看 上述节目， 则会重新向节目发布单元 204发出请求， 获得更新后的节 目数据。
所述节目发布单元 204、网络电视客户端 205和节目提供单元 206 的组成、 功能和相互连接等， 都与图 1中的现有技术相同， 此处不再 赘述。
基于上述系统， 本实施例中网络电视发布方法如图 3所示， 该方 法能够实现同频道的不同节目源的自动切换， 包括以下步驟：
步驟 301 : 管理人员通过频道切换设置单元预先设置频道切换信 息， 并将上述频道切换信息保存在信息存储中心， 每条频道切换信息 都是信息存储中心中的一条记录。
步骤 302:监视模块对信息存储中心中保存的所有记录进行检测， 并判断是否有记录到达预定时间， 如果没有则重复执行步驟 302 , 否 则执行步骤 303。
该步骤中， 监视模块对所有记录的检测时机可以根据需要任意设 置， 比如实时检测等。 出于节约系统资源的考虑， 监视模块会将时间 划分成若干片段， 并按照时间片执行定时循环检测。 比如， 将 1秒划 分成 1000个时间片， 每个时间片 （即每 1毫秒）检测一次。
步骤 303: 监视模块向频道节目切换单元发出启动指示， 所述启 动指示携带所有本次检测中到达预定时间的记录编号。
步骤 304: 频道节目切换单元接收到启动指示后， 根据其中的记 录编号到信息存储中心获取相应的频道切换信息，并通知节目发布单 元完成对应频道的节目源切换。
步骤 305: 节目发布单元根据切换后的设置， 到新节目源地址采 集节目数据， 发布给网络电视客户端。
通过上述系统和方法， 管理人员可以预先设置好待发布的节目， 在到达发布时间时就能自动进行节目发布， 而不需人工干预。 比如： 在周五， 管理人员就设置好周日要发布的 NBA常规赛节目。 这样， 管理人员不需要特意等待周日到公司进行手工发布， 系统会自动把 NBA节目发布出去。
本发明一个实施例中的网络电视客户装置如图 4所示， 包括： 频 道节目预定单元 401、开启信息记录单元 402、网络电视处理单元 403。 其中， 开启信息记录单元 402包括： 信息存储中心 4021和监视模块 4022。
频道节目预定单元 401 , 用于预先设置定时开启信息， 并将该信 息保存在开启信息记录单元 402的信息存储中心 4021。
所述频道节目预定单元 401的实现较为多样， 可以是 HTTP操作 页面， 也可以是 C/S结构的客户端应用程序等。 '
所述定位信息包括开机时间、 频道标识和提醒方式， 比如信息提 醒或直接启动网络电视客户端等。 监视模块 4022, 用于查看信息存储中心 4021的所有记录， 并在 检测到某个或某些记录到达预定时间时，向网络电视处理单元 403发 出启动指示。
网络电视处理单元 403 ,用于根据启动指示，到信息存储中心 4021 获取对应记录，并根据所述记录中的定时开启信息发出网络电视收看 请求， 要求获得对应频道的节目数据； 所述网络电视处理单元 403还 用于发出网絡电视收看请求， 接收和 /或播放网络电视， 其功能与图 1 中的网络电视客户端 101相同， 此处不再赘述。
基于上述装置， 客户端定时开机并自动定位到频道的流程如图 5 所示， 包括以下步骤：
步驟 501 : 用户通过频道节目预定单元预先设置定时开启信息， 并将上述定时开启信息保存在自身的信息存储中心。
步骤 502: 监视模块对信息存储中心保存的所有记录进行检测， 并判断是否有记录到达预定时间， 如果没有则重复执行步驟 502, 否 则执行步骤 503。
步骤 503: 监视模块向网络电视处理单元发出启动指示， 所述启 动指示携带所有本次检测中到达预定时间的记录编号。
步骤 504: 网络电视处理单元接收到启动指示后， 根据其中的记 录编号到信息存储中心获取相应的定位信息，并根据所获得的定位信 息发出网络电视收看请求。
由上述的实施例可见， 本发明的这种网络电视发布系统、 客户装 置和方法， 在到达预定时间时， 能够自动执行切换、 开机或定位频道 等操作， 从而减少人工干预的成分和运营成本， 使得整个系统的操作 和运行更为方便、 稳定， 极大提高用户体验。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明 的保护范围。

Claims

权利要求书
1、 一种网络电视发布系统， 该系统包括节目发布单元， 所述节 目发布单元用于发布网絡电视的频道节目；
其特征在于， 该系统进一步包括： 切换信息记录单元和频道节目 切换单元；
所述切换信息记录单元， 用于记录并监控频道切换信息， 根据监 控情况向频道节目切换单元发出启动指示；
所述频道节目切换单元， 用于接收启动指示， 根据频道切换信息 切换节目发布单元上对应频道的节目源。
2、 根据权利要求 1 所述的系统， 其特征在于， 所述切换信息记 录单元包括： 信息存储中心和监视模块；
所述信息存储中心， 用于保存频道切换信息；
所述监视模块， 用于查看信息存储中心的记录， 并在检测到记录 到达预定时间时， 向频道节目切换单元发出启动指示；
所述频道节目切换单元， 进一步用于根据启动指示， 到信息存储 中心获取对应记录。
3、 根据权利要求 2所述的系统， 其特征在于， 所述发布系统进 一步包括频道切换设置单元；
所述频道切换设置单元， 用于预先设置频道切换信息， 将该频道 切换信息保存到信息存储中心。
4、 根据权利要求 1至 3任一项所述的系统， 其特征在于， 所述 频道切换信息包括频道的旧节目源地址和新节目源地址；
所述发布系统进一步包括： 至少一个节目提供单元；
所述频道节目切换单元，用于根据旧节目源地址查找到对应的节 目提供单元， 并停止所述旧节目源的播放， 根据新节目源地址查找到 对应的节目提供单元， 并播放其上保存的新节目源， 将新节目源地址 通知给节目发布单元；
所述节目发布单元，进一步用于将对应频道的节目地址指向所述 新节目源地址。
5、 根据权利要求 1至 3任一项所述的系统， 其特征在于， 所述 发布系统进一步包括： 至少一个网络电视客户端；
所述频道节目切换单元， 进一步用于在节目源切换成功后， 向网 络电视客户端下发节目更新通知。
6、 一种网络电视发布方法， 其特征在于， 该方法包括： 预先设置并记录频道切换信息；
确定对应记录到达切换时间时， 发出启动指示；
根据所述启动指示获取对应的频道切换信息，对频道进行节目源 切换。
7、 ^^据权利要求 6所述的方法， 其特征在于， 所述确定对应记 录到达切换时间包括： 定时或实时查看所有记录， 以确定到达切换时 间的记录。
8、 根据权利要求 6所述的方法， 其特征在于， 所述频道切换信 息包括： 待切换的频道标识、 旧节目源地址和新节目源地址；
所述节目源切换包括：
根据旧节目源地址查找到对应的旧节目源， 并停止播放所述旧节 目源；
根据新节目源地址查找到对应的新节目源并播放；
发出携带待切换的频道标识和新节目源地址的切换通知消息，根 据所述切换通知将对应频道的节目地址指向新节目源地址。
9、 根据权利要求 6至 8任一项所述的方法， 其特征在于， 所述 频道切换信息包括： 告警方式和后备操作；
该方法进一步包括： 判断所述节目源切换是否成功， 如果成功则 下发节目更新消息， 否则告警并按照后备操作进行错误处理。
10、 一种网络电视客户装置， 其特征在于， 该装置包括： 网络电 视处理单元和开启信息记录单元；
所述开启信息记录单元， 用于记录并监控用户设置的定时开启信 息， 根据监控情况向网络电视处理单元发出启动指示；
所述网络电视处理单元， 用于接收启动指示， 从开启信息记录单 元获取对应的定时开启信息， 根据所述信息发出网络电视收看请求， 并接收和 /或播放网络电视。
11、 根据权利要求 10所述的装置， 其特征在于， 所述开启信息 记录单元包括信息存储中心和监视模块；
所述信息存储中心， 用于保存定时开启信息；
所述监视模块， 用于查看信息存储中心的记录， 并在检测到记录 到达预定时间时， 向网络电视处理单元发出启动指示；
所述网络电视处理单元， 用于根据启动指示， 到信息存储中心获 取对应记录。
12、 根据权利要求 11 所述的装置， 其特征在于， 该装置进一步 包括： 频道节目预定单元；
所述频道节目预定单元， 用于预先设置定时开启信息， 并保存在 信息存储中心。
13、 一种网络电视开启方法， 应用于网络电视客户装置， 该装置 设置有网络电视处理单元和开启信息记录单元， 其特征在于， 该方法 包括： 预先设置并记录定时开启信息；
开启信息记录单元确定对应记录到达预定时间时， 向网络电视处 理单元发出启动指示；
网络电视处理单元到开启信息记录单元获取对应的定时开启信 息， 并根据定时开启信息发出网络电视收看请求。
14、 根据权利要求 13所述的方法， 其特征在于， 所述定时开启 信息包括： 开机时间、 频道标识和提醒方式。
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