WO2020118992A1 - 一种卫星电视接收与切换卫星信号的系统与方法 - Google Patents

一种卫星电视接收与切换卫星信号的系统与方法 Download PDF

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WO2020118992A1
WO2020118992A1 PCT/CN2019/082818 CN2019082818W WO2020118992A1 WO 2020118992 A1 WO2020118992 A1 WO 2020118992A1 CN 2019082818 W CN2019082818 W CN 2019082818W WO 2020118992 A1 WO2020118992 A1 WO 2020118992A1
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mobile intelligent
intelligent terminal
stream data
embedded module
information
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PCT/CN2019/082818
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English (en)
French (fr)
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单晓明
区启康
耿健
李锦灵
李小华
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广州易而达科技股份有限公司
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Publication of WO2020118992A1 publication Critical patent/WO2020118992A1/zh

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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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/4104—Peripherals receiving signals from specially adapted client devices
    • H04N21/4126—The peripheral being portable, e.g. PDAs or mobile phones
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • 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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
    • 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 encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • 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 encoded video stream packets from an IP network
    • H04N21/4385—Multiplex stream processing, e.g. multiplex stream decrypting
    • 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
    • H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite

Definitions

  • the invention relates to the technical field of satellite television, and in particular to a system and method for receiving and switching signals of satellite television based on the ku band.
  • the dynamic mid-range satellite TV receiving system based on the ku band includes a dynamic mid-range antenna, an antenna controller, a satellite set-top box, and a television main body, thereby forming a complete set of receiving system to receive television signals.
  • the antenna in motion needs to be connected to the antenna controller with a coaxial cable
  • the set-top box needs to be connected to the signal ring outlet of the antenna controller with a coaxial cable, and finally output video and audio signals to the TV.
  • the on-board moving and retracting antenna is generally installed on the top of the ship, and the on-board moving and retracting antenna is generally installed on the roof.
  • the user first selects the satellite TV signal received through the antenna controller.
  • the moving and retracting antenna completes the automatic signal tracking and reduces the frequency of the signal. Amplify, and then transmit the signal to the antenna controller through the coaxial cable.
  • the set-top box receives the loop-out signal from the antenna controller, performs demodulation and decoding, and finally displays it on the TV. In this way, the user can watch different satellite TVs through the moving satellite TV receiving system during the movement of the car or the hull.
  • the current KU-band based mobile satellite TV receiving system has the following defects: First, it requires fixed TV equipment and cannot be viewed using mobile smart terminals; Second, each user can only watch the same program and watch multiple programs Multiple set-top boxes need to be configured. Third, the user can only control the antenna controller through the buttons, and cannot use the mobile intelligent terminal for remote control.
  • the onboard or onboard satellite moving and receiving antenna includes the satellite antenna body, LNB (Low Noise Block), transmission mechanism, main control board, gyroscope, GPS module and housing.
  • LNB Low Noise Block
  • the antenna body is used to receive satellite TV signals in the ku band.
  • the LNB is used to amplify, down-convert, filter and convert the ku-band satellite TV signal into a first intermediate frequency signal.
  • the transmission mechanism is used to drive the antenna body to rotate to point to the set (selected) satellite, so that the antenna body can receive signals from a certain frequency point of the satellite (a frequency point generally contains more than 10 TV programs).
  • the gyroscope and GPS module are used to obtain the position information of the antenna body.
  • the main control board contains an automatic tracking satellite algorithm, which can receive instructions and control the transmission mechanism according to the instructions and process the information between each module.
  • the antenna controller generally contains an information display screen, control buttons, main control board, demodulator, decoding circuit, TS shunt chip, etc.
  • the demodulator is used to demodulate the first intermediate frequency signal output by the moving central receiver antenna and convert the signal into a baseband signal.
  • the decoding circuit is used to convert the baseband signal into a TS stream signal.
  • the TS stream signal contains all the TV program video, audio and other data information at the current frequency of the satellite.
  • the existing antenna controller is generally shunted by the TS shunt chip. The principle is to configure its hardware channel according to user instructions to filter out the specified program information. Therefore, the existing antenna controller has only one output, which results in each user terminal only Can receive the same TV program.
  • the first technical problem to be solved by the present invention is to provide a new structure of ku band-based satellite TV receiving system in motion.
  • the second technical problem to be solved by the present invention is to provide a method for satellite TV receiving and switching satellite signals based on the above system.
  • a satellite TV receiving and switching satellite signal system which is composed of a moving central receiving antenna, an antenna controller, and a mobile intelligent terminal;
  • the antenna controller is connected, and the antenna controller is connected to the mobile intelligent terminal through a WIFI network.
  • the antenna controller includes a main control board, a demodulator, a decoding circuit, and a WIFI embedded module; the demodulator, decoding circuit, and WIFI embedded module are sequentially connected, and the main control board and the WIFI embedded module Connected.
  • the antenna controller further includes an information display screen and a control button, and the information display screen and the control button are respectively connected to the main control board.
  • the WIFI embedded module receiving TS stream data, and transmitting configuration information of all programs contained in the TS stream data at the current satellite frequency to the requested mobile intelligent terminal according to the request;
  • the mobile intelligent terminal when receiving a program request initiated by the mobile intelligent terminal, record the client state information of the mobile intelligent terminal, where the client state information includes TCP connection information and configuration information of the requested program;
  • the corresponding TS stream data packets are distributed;
  • the distributed TS stream data packet is sent to the corresponding mobile intelligent terminal.
  • the WIFI embedded module implements the following steps to distribute the corresponding TS stream data packets according to the configuration of the analog transmission channel:
  • the antenna controller implements the following steps to control the moving and receiving antenna to switch satellite signals through the mobile intelligent terminal, and obtain or set device information of the moving and receiving antenna:
  • WIFI embedded module parses the request instruction into a control instruction recognized by its main control board, and forwards it to its main control board;
  • the main control board performs corresponding operation according to the instruction content and returns the operation result
  • the WIFI embedded module transmits the result back to the mobile intelligent terminal.
  • a method for satellite TV receiving and switching satellite signals based on the system characterized in that the TS offloading process steps are as follows:
  • the WIFI embedded module receiving TS stream data, and transmitting configuration information of all programs contained in the TS stream data at the current satellite frequency to the requested mobile intelligent terminal according to the request;
  • the mobile intelligent terminal when receiving a program request initiated by the mobile intelligent terminal, record the client state information of the mobile intelligent terminal, where the client state information includes TCP connection information and configuration information of the requested program;
  • the corresponding TS stream data packets are distributed;
  • the distributed TS stream data packet is sent to the corresponding mobile intelligent terminal.
  • the invention replaces the filtering of the traditional TS shunt chip by distribution, and can support different user terminals to watch different TV programs.
  • the present invention realizes TS shunting through a WIFI embedded module, and the changes to the original antenna controller are relatively small, the transformation is easy, and the implementation cost is low.
  • the WIFI embedded module acquiring program information contained in the received TS stream data packet;
  • this method Compared with traversing the client status information of all mobile smart terminals once for each TS stream data packet distribution, this method will form a record for mobile smart terminals requesting the same program, and then directly distribute TS stream data packets according to the records, which has a higher distribution effectiveness.
  • the method also includes controlling the mobile antenna to switch satellite signals through the mobile intelligent terminal, and acquiring or setting device information of the mobile antenna.
  • the specific steps are:
  • the antenna controller receiving the request instruction of the mobile intelligent terminal through its WIFI embedded module;
  • WIFI embedded module parses the request instruction into a control instruction recognized by its main control board, and forwards it to its main control board;
  • the main control board performs corresponding operation according to the instruction content and returns the operation result
  • the WIFI embedded module transmits the result back to the mobile intelligent terminal.
  • the present invention supports remote control of the system through a mobile intelligent terminal.
  • the system of the present invention does not require a set-top box and fixed TV equipment. Users directly use mobile smart terminals to watch satellite TV programs, and mobile smart terminals are connected to the system through a WIFI network. Compared with existing systems, the system components of the present invention are simpler , The usage is more flexible;
  • the antenna controller of the present invention is not provided with a TS shunt chip and does not shunt by way of hardware channel filtering, which provides a basis for different users to watch different programs;
  • the mobile intelligent terminal of the present invention is connected to the system through a WIFI network, which facilitates remote control of the system through the mobile intelligent terminal;
  • the present invention replaces the filtering of traditional TS shunt chips with distribution, and can support different user terminals to watch different TV programs. Moreover, the present invention realizes TS shunt through WIFI embedded modules, and the changes to the original antenna controller are relatively small and the transformation is easy. Low implementation cost;
  • this method will form a record for mobile smart terminals requesting the same program, and then directly distribute TS stream data packets according to the records, which has a higher Distribution efficiency;
  • the invention supports users to directly control the system remotely by using mobile intelligent terminals.
  • FIG. 1 is a schematic block diagram of a system for receiving and switching satellite signals in a satellite TV according to Embodiment 1;
  • FIG. 3 is used to show the process of the system of Embodiment 1 playing a satellite TV program remotely through a mobile intelligent terminal;
  • Figure 4 is used to show the process of the WIFI embedded module distributing specific TV program signals to specific clients.
  • FIG. 1 The principle block diagram of the system for receiving and switching satellite signals of a satellite TV according to the first embodiment is shown in FIG. 1, which is composed of a moving-in-receiving antenna, an antenna controller, and a mobile intelligent terminal.
  • the moving antenna and the antenna controller are connected by a coaxial cable, and the antenna controller and the mobile intelligent terminal are connected by a WIFI network.
  • the antenna controller includes an information display screen, control buttons, main control board, demodulator, decoding circuit and WIFI embedded module.
  • the demodulator, decoding circuit (decoding chip), and WIFI embedded module are connected in sequence.
  • the decoder receives the first intermediate frequency signal output from the moving central receiver antenna, demodulates the signal, converts the signal into a baseband signal, and the decoding circuit converts the baseband signal Converted to TS stream signal and output to the WIFI embedded module (system) through the USB interface.
  • the main control board main control chip
  • the antenna controller provides two types Different control methods, one is remote control realized by WIFI embedded module, and the other is directly controlled by control buttons.
  • the information display screen is used to display the device information of the moving and receiving antenna in order to check its operating status, device internal voltage, signal strength, etc.
  • the control buttons are mainly used to set the LNB working parameters and finder parameters of the moving and receiving antenna.
  • the WIFI embedded module receives user instructions from the smart mobile terminal through the WIFI network, which mainly includes acquiring and setting device information of the moving and receiving antenna or controlling the moving and receiving antenna to switch satellite signals, and controlling TV program playback, and parsing the user instructions into specified Format control instructions so that the main control board can recognize them. If it is the device information to obtain and set the moving antenna, or the command to control the moving antenna to switch the satellite signal, it is sent to the main control board of the antenna controller through the serial port (the WIFI embedded module is connected to the main control board through the serial port).
  • the MCU of the antenna controller completes the instruction and returns the operation result through the WIFI embedded module; if it is a request to control the TV program playback, the TS stream data output from the demodulator and decoding circuit is received through the USB interface,
  • the TS stream data contains the video, audio and other data information of all TV programs under the current frequency of the satellite.
  • the TS stream data packets are distributed according to user instructions and sent to the corresponding mobile intelligent terminal through the WIFI network.
  • the method for receiving and switching satellite signals based on the satellite TV system of the first embodiment, the steps of switching the satellite signals through the mobile intelligent terminal to control the moving antenna to switch the satellite signals, and acquiring or setting the device information of the moving antenna are as follows, referring to FIG. 2:
  • Step 1 The mobile intelligent terminal is connected to the WIFI network sent from the antenna controller WIFI embedded module;
  • Step 2 Open the APP software in the mobile smart terminal
  • Step 3 Set or obtain the device information of the moving antenna in the APP software interface or control the moving antenna to switch the satellite signal.
  • the related operations are converted into request instructions and sent to the WIFI embedded module through the WIFI network;
  • Step 4 The WIFI embedded module parses the request instruction and forwards the request instruction to the main control board of the antenna controller (English: Antenna Control Unit, ACU for short) through the serial port;
  • Step 5 The antenna controller performs corresponding operations according to the requested content and returns the operation results;
  • Step 6 The WIFI embedded module returns the result to the APP software of the mobile intelligent terminal.
  • the steps of acquiring and broadcasting satellite TV program data by its mobile intelligent terminal are as follows, referring to FIG. 3:
  • Step 1 Remotely control the ACU to align the antenna and receive data from the specified satellite; at this time, the WIFI embedded module controls the demodulator and decoding circuit through the USB interface to lock it to the specified frequency point (the demodulator and decoding circuit itself can Respond to this control signal), and obtain the TS stream data through the USB interface, and analyze the TS stream data to obtain the configuration information of all programs at this frequency point;
  • Step 2 The APP software automatically obtains the configuration information of all programs under the current satellite frequency from the WIFI embedded module, such as the program video number and program audio number identified by PID;
  • Step 3 Perform the operation of selecting a certain program on the interface of the APP software.
  • the related operations are converted into request instructions and sent to the WIFI embedded module through the WIFI network;
  • Step 4 The WIFI embedded module analyzes the configuration information of the program requested by the client according to the client instruction
  • Step 5 The WIFI embedded module creates an analog transmission channel according to the configuration information of the requested program
  • Step 6 When the WIFI embedded module obtains program data from the USB, according to the configuration of each analog transmission channel, a corresponding TS stream data packet is distributed.
  • the above-mentioned program data refers to TS stream data.
  • the WIFI embedded module analyzes the received TS stream data by sub-packet analysis, obtains its PID, and then compares the information of the analog transmission channel to distribute the data package to the corresponding channel.
  • the WIFI embedded module when the relevant operation is converted into a request command and sent to the WIFI embedded module through the WIFI network, the WIFI embedded module receives the above program request command, analyzes the configuration information of the program requested by the client, and records the TCP connection information of the client at the same time. Distributing TS stream data packets is also based on the TCP connection information to send TS stream data packets to the corresponding mobile intelligent terminal.
  • the operation of the WIFI embedded module to distribute a specific TV program signal to a specific client is specifically implemented by the WIFI embedded module according to the configuration of each analog transmission channel, and the corresponding TS stream data packet is distributed.
  • the specific steps are as follows, referring to FIG. 4:
  • Step 1 The WIFI embedded module obtains a piece of TS stream data through USB, and the piece of TS stream data may contain different types of data packets of different programs;
  • Step 2 The WIFI embedded module analyzes a TS stream data packet to obtain the program information contained in the data packet;
  • Step 3 The WIFI embedded module obtains a record of client status information of all mobile intelligent terminals requesting the program;
  • Step 4 The WIFI embedded module sends the TS stream data packet to all mobile intelligent terminals in the record according to the TCP connection information in the client status record.

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Abstract

一种卫星电视接收与切换卫星信号的系统与方法，所述方法其TS分流过程步骤如下：WIFI嵌入式模块:接收TS流数据，根据请求将当前卫星频点下TS流数据包含的所有节目的配置信息传送到请求的移动智能终端；并在接收到移动智能终端发起的节目请求时，记录移动智能终端的客户端状态信息，客户端状态信息包含TCP连接信息和请求节目的配置信息；根据所请求节目的配置信息创建模拟传输通道；再根据模拟传输通道的配置，分发相应的TS流数据包。本发明以分发替代传统TS分流芯片的过滤，可支持不同用户终端收看不同电视节目，而且本发明通过WIFI嵌入式模块实线TS分流，对原本天线控制器的改动相对较小，改造容易，实现成本低。

Description

一种卫星电视接收与切换卫星信号的系统与方法 技术领域
本发明涉及卫星电视技术领域，尤其涉及一种基于ku波段的卫星电视接收与切换信号的系统与方法。
背景技术
目前，基于ku波段的动中收卫星电视接收系统包含动中收天线、天线控制器、卫星机顶盒、电视主体，由此组成一套完整的接收系统接收电视信号。动中收天线需用同轴电缆和天线控制器连接，机顶盒需用同轴电缆连接天线控制器信号环出口，最终输出视频音频信号给电视机。
船载动中收天线一般装在船顶部，车载动中收天线一般装在车顶，用户先通过天线控制器选择接收的卫星电视信号，动中收天线完成信号自动跟踪并将信号降频和放大，然后通过同轴电缆将信号传输到天线控制器，机顶盒接收来自天线控制器的环出信号，并进行解调和解码，最终在电视机上显示。这样用户即可在汽车或者船体移动的过程中通过动中收卫星电视接收系统观看不同的卫星电视。
综上，目前基于ku波段的动中收卫星电视接收系统存在如下缺陷：一是需要固定的电视设备，无法使用移动智能终端观看；二是每个用户只能收看同一个节目，收看多个节目需要配置多个机顶盒。三是使用者只能通过按键控制天线控制器，无法利用移动智能终端进行远程控制。
船载或车载卫星动中收天线，包含卫星天线主体、LNB(Low Noise Block的简称，即低噪声下变频器)、传动机构、主控板、陀螺仪、GPS模块和外壳。
天线主体用于接收ku波段的卫星电视信号。
LNB用于将所述ku波段的卫星电视信号进行放大、下变频、滤波并把信号转成第一中频信号。
传动机构用于驱动天线主体转动使其指向所设置(选择)的卫星，以便天线主体可以接收该卫星某频点的信号(一个频点一般包含10几个电视节目)。
陀螺仪和GPS模块用于获取天线主体的位置信息。
主控板内含自动跟踪卫星算法，能接受指令并根据指令控制传动机构动作以及处理各模块之间的信息。
天线控制器一般包含信息显示屏、控制按键、主控板、解调器、解码电路、TS分流芯片等。解调器用于解调动中收天线输出的第一中频信号，将信号转换成基带信号。解码电路用于将所述基带信号转换为TS流信号。TS流信号包含了卫星当前频点下所有电视节目视频、音频和其他数据信息。现有天线控制器一般通过TS分流芯片分流，其原理是根据用户指令配置其硬件通道，将指定的节目信息过滤出来，所以，现有天线控制器只有一路输出，也就导致每个用户终端只能接收同一个电视节目。
发明内容
本发明所要解决的第一个技术问题是，提供一种新型结构的基于ku波段的动中收卫星电视接收系统。
本发明所要解决的第二个技术问题是，提供一种基于上述系统的卫星电视接收与切换卫星信号的方法。
本发明的第一个技术问题通过如下技术方案解决：一种卫星电视接收与切换卫星信号的系统，其由动中收天线、天线控制器以及移动智能终端构成；所述动中收天线与所述天线控制器相连，所述天线控制器通过WIFI网络与所述移动智能终端连接。
所述天线控制器包括主控板、解调器、解码电路和WIFI嵌入式模块；所述解调器、解码电路、WIFI嵌入式模块依次连接，所述主控板与所述WIFI嵌入式模块相连。
所述天线控制器还包括有信息显示屏和控制按键，所述信息显示屏和控制按键分别与所述主控板相连。
所述WIFI嵌入式模块:接收TS流数据，并根据请求将当前卫星频点下所述TS流数据包含的所有节目的配置信息传送到请求的移动智能终端；
并在接收到所述移动智能终端发起的节目请求时，记录所述移动智能终端的客户端状态信息，所述客户端状态信息包含TCP连接信息和请求节目的配置信息；
然后，根据所述请求节目的配置信息创建模拟传输通道；
再根据所述模拟传输通道的配置，分发相应的TS流数据包；
最后，根据所述TCP连接信息，将分发的所述TS流数据包发送到相应的移动智能终端。
所述WIFI嵌入式模块通过执行如下步骤实现根据所述模拟传输通道的配置，分发相应的TS流数据包：
获取接收的TS流数据包所包含的节目信息；
再获取请求该节目的所有移动智能终端的客户端状态信息的记录；
然后将该TS流数据包发送到记录中的所有移动智能终端。
所述天线控制器通过执行如下步骤实现通过所述移动智能终端控制所述动中收天线切换卫星信号、获取或设置所述动中收天线的设备信息：
通过其WIFI嵌入式模块接收所述移动智能终端的请求指令；
其WIFI嵌入式模块将所述请求指令解析成其主控板能识别的控制指令，并转发至其主控板；
其主控板根据指令内容进行相应操作并返回操作结果；
其WIFI嵌入式模块将结果回传给所述移动智能终端。
本发明的第二个技术问题通过如下技术方案解决：一种基于所述系统的卫星电视接收与切换卫星信号的方法，其特征在于，其TS分流过程步骤如下：
所述WIFI嵌入式模块:接收TS流数据，并根据请求将当前卫星频点下所述TS流数据包含的所有节目的配置信息传送到请求的移动智能终端；
并在接收到所述移动智能终端发起的节目请求时，记录所述移动智能终端的客户端状态信息，所述客户端状态信息包含TCP连接信息和请求节目的配置信息；
然后，根据所述请求节目的配置信息创建模拟传输通道；
再根据所述模拟传输通道的配置，分发相应的TS流数据包；
最后，根据所述TCP连接信息，将分发的所述TS流数据包发送到相应的移动智能终端。
本发明以分发替代传统TS分流芯片的过滤，可支持不同用户终端收看不同电视节目。而且本发明通过WIFI嵌入式模块实现TS分流，对原本天线控制器的改动相对较小，改造容易，实现成本低。
通过如下优先方式实现根据所述模拟传输通道的配置，分发相应的TS流数据包：
所述WIFI嵌入式模块:获取接收的TS流数据包所包含的节目信息；
再获取请求该节目的所有移动智能终端的客户端状态信息的记录；
然后将该TS流数据包发送到记录中的所有移动智能终端。
相比于每次分发TS流数据包遍历一次所有移动智能终端的客户端状态信息，该方式将请求相同节目的移动智能终端形成记录，然后直接根据记录分发TS流数据包，具有更高的分发效率。
所述方法还包括通过所述移动智能终端控制所述动中收天线切换卫星信号、获取或设置所述动中收天线的设备信息，其具体步骤是：
所述天线控制器：通过其WIFI嵌入式模块接收所述移动智能终端的请求指令；
其WIFI嵌入式模块将所述请求指令解析成其主控板能识别的控制指令，并转发至其主控板；
其主控板根据指令内容进行相应操作并返回操作结果；
其WIFI嵌入式模块将结果回传给所述移动智能终端。
即本发明支持通过移动智能终端对系统进行远程控制。
有益效果：
1)本发明系统无需配置机顶盒和固定的电视设备，用户直接使用移动智能终端观看卫星电视节目，而且移动智能终端通过WIFI网络与系统连接，相比于现有系统，本发明系统组成部分更加简单，使用方式更加灵活；
2)本发明天线控制器未设置TS分流芯片，不通过硬件通道过滤的方式来分流，为实现不同用户收看不同节目提供基础；
3)本发明移动智能终端通过WIFI网络与系统连接，便于实现通过移动智能终端对系统进行远程控制；
4)本发明以分发替代传统TS分流芯片的过滤，可支持不同用户终端收看不同电视节目，而且本发明通过WIFI嵌入式模块实现TS分流，对原本天线控制器的改动相对较小，改造容易，实现成本低；
5)相比于每次分发TS流数据包遍历一次所有移动智能终端的客户端状态信息，该方式将请求相同节目的移动智能终端形成记录，然后直接根据记录分发TS流数据包，具有更高的分发效率；
6)本发明支持用户直接利用移动智能终端对系统进行远程控制。
附图说明
图1为实施例一的卫星电视接收与切换卫星信号的系统的原理框图；
图2用于显示实施例一的系统通过移动智能终端远程控制天线控制器的过程；
图3用于显示实施例一的系统通过移动智能终端远程播放卫星电视节目的过程；
图4用于显示WIFI嵌入式模块将特定的电视节目信号分发到特定的客户端的过程。
具体实施方式
实施例一
实施例一的卫星电视接收与切换卫星信号的系统的原理框图如图1所示，其由动中收天线、天线控制器以及移动智能终端构成。动中收天线与天线控制器通过同轴电缆连接，天线控制器与移动智能终端通过WIFI网络连接。
天线控制器包括信息显示屏、控制按键、主控板、解调器、解码电路和WIFI嵌入式模块。解调器、解码电路(解码芯片)、WIFI嵌入式模块依次连接，解码器接收动中收天线输出的第一中频信号，对信号进行解调，将信号转换成基带信号，解码电路将基带信号转换为TS流信号，并通过USB接口输出到WIFI嵌入式模块(系统)，主控板(主控芯片)还与WIFI嵌入式模块、信息显示屏和控制按键分别相连，天线控制器提供两种不同的控制方式，一种为通过WIFI嵌入式模块实现的远程控制，一种则直接通过控制按键进行控制。信息显示屏用于显示动中收天线的设备信息，以便查看其运行状态、设备内部电压、信号强度等。控制按键主要用于设置动中收天线的LNB工作参数和寻星参数。
WIFI嵌入式模块通过WIFI网络接收来自智能移动终端的用户指令，主要包括获取、设置动中收天线的设备信息或者控制动中收天线切换卫星信号，以及控制电视节目播放，将用户指令解析成指定格式的控制指令,以便主控板能够识别。 如果是获取、设置动中收天线的设备信息或者控制动中收天线切换卫星信号的指令，则通过串口(WIFI嵌入式模块与主控板通过串口连接)发送到天线控制器的主控板，通常采用MCU，最终由天线控制器的MCU完成指令，并通过WIFI嵌入式模块返回操作结果；如果是控制电视节目播放的请求，则通过USB接口接收解调器、解码电路输出的TS流数据，该TS流数据包含卫星当前频点下所有电视节目的视频、音频和其他数据信息，根据用户指令分发TS流数据包，并通过WIFI网络发送到相应的移动智能终端。
基于实施例一系统的卫星电视接收与切换卫星信号的方法，其通过移动智能终端控制动中收天线切换卫星信号、获取或设置动中收天线的设备信息的步骤如下，参照附图2：
步骤1、移动智能终端连接到天线控制器WIFI嵌入式模块发出的WIFI网络；
步骤2、在移动智能终端中打开APP软件；
步骤3、在APP软件的界面上进行设置或者获取动中收天线的设备信息或者控制动中收天线切换卫星信号的操作，相关操作转换成请求指令并通过WIFI网络发送到WIFI嵌入式模块；
步骤4、WIFI嵌入式模块解析请求指令，并通过串口将请求指令转发到天线控制器(英文：Antenna Control Unit,简称为ACU)的主控板；
步骤5、天线控制器根据请求内容进行相应操作并返回操作结果；
步骤6、WIFI嵌入式模块将结果回传到移动智能终端的APP软件中。
基于实施例一系统的卫星电视接收与切换卫星信号的方法，其移动智能终端获取卫星电视节目数据并播放的步骤如下，参照附图3：
步骤1、远程控制ACU让天线对准并接收指定卫星的数据；此时，WIFI嵌入式模块通过USB接口控制解调器和解码电路，让其锁定指定频点(解调器和解码电路本身能响应这种控制信号)，并通过USB接口获取TS流数据，并对TS流数据进行分析，获取该频点下所有节目的配置信息；
步骤2、APP软件自动向WIFI嵌入式模块获取当前卫星频点下所有节目的配置信息，如用PID来标识的节目视频编号、节目音频编号等；
步骤3、在APP软件的界面上进行选择观看某节目的操作，相关操作转换成请求指令并通过WIFI网络发送到WIFI嵌入式模块；
步骤4、WIFI嵌入式模块根据客户端指令分析出客户端请求节目的配置信息；
步骤5、WIFI嵌入式模块根据请求节目的配置信息创建模拟传输通道；
步骤6、当WIFI嵌入式模块从USB获取到节目数据时，根据每个模拟传输通道的配置，分发相应的TS流数据包。上述节目数据即指TS流数据，WIFI嵌入式模块对接收的TS流数据进行分包解析，获取它的PID，然后对比模拟传输通道的信息，把数据包分发给相应的通道。
事实上，相关操作转换成请求指令通过WIFI网络发送到WIFI嵌入式模块时，WIFI嵌入式模块接收上述节目请求指令，分析出客户端请求的节目的配置信息，同时记录客户端的TCP连接信息，后续分发TS流数据包也正是根据该TCP连接信息将TS流数据包发送到相应的移动智能终端。
WIFI嵌入式模块将特定的电视节目信号分发到特定的客户端的操作具体通过WIFI嵌入式模块根据每个模拟传输通道的配置，分发相应的TS流数据包实现，具体步骤如下，参照附图4：
步骤1、WIFI嵌入式模块通过USB获取到一段TS流数据，该段TS流数据可能包含不同节目的不同类型数据包；
步骤2、WIFI嵌入式模块分析一个TS流数据包，获取数据包所包含的节目信息；
步骤3、WIFI嵌入式模块获取请求该节目的所有移动智能终端的客户端状态信息的记录；
步骤4、WIFI嵌入式模块根据客户端状态记录中的TCP连接信息，将该TS流数据包发送到记录中的所有移动智能终端。
本发明不局限于上述具体实施方式，根据上述内容，按照本领域的普通技术知识和惯用手段，在不脱离本发明上述基本技术思想前提下，本发明还可以做出其它多种形式的等效修改、替换或变更，均落在本发明的保护范围之中。

Claims (9)

  1. 一种卫星电视接收与切换卫星信号的系统，其特征在于，其由动中收天线、天线控制器以及移动智能终端构成；所述动中收天线与所述天线控制器相连，所述天线控制器通过WIFI网络与所述移动智能终端连接。
  2. 根据权利要求1所述的系统，其特征在于，所述天线控制器包括主控板、解调器、解码电路和WIFI嵌入式模块；所述解调器、解码电路、WIFI嵌入式模块依次连接，所述主控板与所述WIFI嵌入式模块相连。
  3. 根据权利要求2所述的系统，其特征在于，所述天线控制器还包括有信息显示屏和控制按键，所述信息显示屏和控制按键分别与所述主控板相连。
  4. 根据权利要求3所述的系统，其特征在于，所述WIFI嵌入式模块:接收TS流数据，并根据请求将当前卫星频点下所述TS流数据包含的所有节目的配置信息传送到请求的移动智能终端；
    并在接收到所述移动智能终端发起的节目请求时，记录所述移动智能终端的客户端状态信息，所述客户端状态信息包含TCP连接信息和请求节目的配置信息；
    然后，根据所述请求节目的配置信息创建模拟传输通道；
    再根据所述模拟传输通道的配置，分发相应的TS流数据包；
    最后，根据所述TCP连接信息，将分发的所述TS流数据包发送到相应的移动智能终端。
  5. 根据权利要求4所述的系统，其特征在于，所述WIFI嵌入式模块通过执行如下步骤实现根据所述模拟传输通道的配置，分发相应的TS流数据包：
    获取接收的TS流数据包所包含的节目信息；
    再获取请求该节目的所有移动智能终端的客户端状态信息的记录；
    然后将该TS流数据包发送到记录中的所有移动智能终端。
  6. 根据权利要求5所述的系统，其特征在于，所述天线控制器通过执行如下步骤实现通过所述移动智能终端控制所述动中收天线切换卫星信号、获取或设置所述动中收天线的设备信息：
    通过其WIFI嵌入式模块接收所述移动智能终端的请求指令；
    其WIFI嵌入式模块将所述请求指令解析成其主控板能识别的控制指令，并转发至其主控板；
    其主控板根据指令内容进行相应操作并返回操作结果；
    其WIFI嵌入式模块将结果回传给所述移动智能终端。
  7. 一种基于权利要求2-6任一权利要求所述系统的卫星电视接收与切换卫星信号的方法，其特征在于，其TS分流过程步骤如下：
    所述WIFI嵌入式模块:接收TS流数据，并根据请求将当前卫星频点下所述TS流数据包含的所有节目的配置信息传送到请求的移动智能终端；
    并在接收到所述移动智能终端发起的节目请求时，记录所述移动智能终端的客户端状态信息，所述客户端状态信息包含TCP连接信息和请求节目的配置信息；
    然后，根据所述请求节目的配置信息创建模拟传输通道；
    再根据所述模拟传输通道的配置，分发相应的TS流数据包；
    最后，根据所述TCP连接信息，将分发的所述TS流数据包发送到相应的移动智能终端。
  8. 根据权利要求7所述的方法，其特征在于，根据所述模拟传输通道的配置，分发相应的TS流数据包的具体步骤如下：
    所述WIFI嵌入式模块:获取接收的TS流数据包所包含的节目信息；
    再获取请求该节目的所有移动智能终端的客户端状态信息的记录；
    然后将该TS流数据包发送到记录中的所有移动智能终端。
  9. 根据权利要求8所述的方法，其特征在于，所述方法还包括通过所述移动智能终端控制所述动中收天线切换卫星信号、获取或设置所述动中收天线的设备信息，其具体步骤是：
    所述天线控制器：通过其WIFI嵌入式模块接收所述移动智能终端的请求指令；
    其WIFI嵌入式模块将所述请求指令解析成其主控板能识别的控制指令，并转发至其主控板；
    其主控板根据指令内容进行相应操作并返回操作结果；
    其WIFI嵌入式模块将结果回传给所述移动智能终端。
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