WO2015139233A1 - 支持多卫星输入的一线技术Unicable设备 - Google Patents

支持多卫星输入的一线技术Unicable设备 Download PDF

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Publication number
WO2015139233A1
WO2015139233A1 PCT/CN2014/073697 CN2014073697W WO2015139233A1 WO 2015139233 A1 WO2015139233 A1 WO 2015139233A1 CN 2014073697 W CN2014073697 W CN 2014073697W WO 2015139233 A1 WO2015139233 A1 WO 2015139233A1
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Prior art keywords
satellite
input
designated
selector
unicable
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PCT/CN2014/073697
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English (en)
French (fr)
Inventor
李晓敏
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华为终端有限公司
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Publication date
Application filed by 华为终端有限公司 filed Critical 华为终端有限公司
Priority to PCT/CN2014/073697 priority Critical patent/WO2015139233A1/zh
Publication of WO2015139233A1 publication Critical patent/WO2015139233A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04HBROADCAST COMMUNICATION
    • H04H40/00Arrangements specially adapted for receiving broadcast information
    • H04H40/18Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/90Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for satellite broadcast receiving
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/18578Satellite systems for providing broadband data service to individual earth stations

Definitions

  • the invention relates to the field of satellite signal receiving, and in particular to an Unicable device supporting multiple satellite inputs. Background technique
  • DBS Direct Broadcasting Satellite Service
  • OFDU DBS Out-door Unit
  • the Unicable device In the prior art, in order to solve the above problem, the Unicable device is used, and the first-line technology device inputs the input four signals into the built-in four-in and two-out matrix switch, which is provided by the digital satellite receiver DC 13/
  • the 18V control signal is controlled, and the matrix switch from the four input and the second output outputs two independent mixed signals, and the mixed signal includes a vertical linear polarization high and low frequency signal and a horizontal linear polarization high and low frequency signal.
  • the two independent mixed signals enter the first Satellite Channel Router (SCR) chip and the second SCR chip respectively, and the signal is further down-converted in the SCR chip, and converted into a fixed frequency intermediate frequency signal, and then passed through a band pass filter.
  • SCR Satellite Channel Router
  • a narrow sub-band output signal is generated, and finally the narrow sub-band output signal is combined by the mixer to form a composite frequency band, which is output by the Unicable interface and transmitted to the satellite receiver via a cable.
  • the Unicable device uses the above technical solution to solve the connection problem of multiple tuners by using a coaxial cable that has been laid, and the first-line technology product, which makes the installation simple and cost-effective. But the current Unicable device only supports With single satellite input, the user's demand for multi-satellite signal reception cannot be met, which makes the use and promotion of satellite TV have limitations.
  • Embodiments of the present invention provide an Unicable device that supports multiple satellite inputs to meet the needs of satellite receiver users to receive signals from different satellites.
  • an embodiment of the present invention provides a Uni cable device supporting multiple satellite inputs, the device comprising a selector, a single chip microcomputer, and a matrix switch:
  • the single chip microcomputer is connected to the selector, and is used for interacting with a satellite receiver using a first digital satellite device control (Dig i ta l Satel li te Equipment Control, Di SEqC ) command, and according to the result of the interaction
  • the selector sends the first control information, where the first DiSEqC command carries the identification information of the designated satellite;
  • the selector is configured to transmit, according to the first control information sent by the single chip, four input signals input by the designated satellite to the matrix switch, where the first control information includes the designated satellite Identification information;
  • the device After the selector transmits the four input signals input by the designated satellite to the matrix switch, the device performs modulation processing on the four input signals input by the specified satellite to obtain a user frequency band to be locked by the satellite receiver.
  • the UB center frequency is such that the satellite receiver locks the UB center frequency and receives satellite signals of the designated satellite.
  • the device further includes a plurality of SCRs, where the plurality of SCRs are configured to control the output of the matrix switch according to the second control information transmitted by the single chip microcomputer
  • the mixed signal, the second control information includes the UB number and a frequency that needs to be locked.
  • the device further includes a plurality of band pass filters, a mixer.
  • the device performs modulation processing on the four input signals input by the specified satellite, and obtains a user frequency band UB center frequency to be locked by the satellite receiver, which specifically includes: a corresponding mixed signal of each SCR pair of the plurality of SCRs Performing a down-conversion process to obtain a frequency-fixed intermediate frequency signal; each of the plurality of band-pass filters filtering the corresponding intermediate frequency signal to obtain a sub-band output signal; the mixer is configured to A plurality of sub-band output signals output by the plurality of band pass filters are combined to obtain a UB center frequency to be locked by the satellite receiver.
  • the single chip is further configured to interact with the satellite receiver by using a second DiSEqC command to obtain the UB number and The UB center frequency.
  • the four Transmitting the input signal to the matrix switch specifically includes: the selector selecting the designated satellite from the connected plurality of satellites according to the identification information of the designated satellite in the first control information, and Four input signals specifying satellite inputs are transmitted to the matrix switch.
  • the single-chip microcomputer can interact with the satellite receiver using the first Di SEqC command, and according to the interaction result, obtain which satellite the satellite receiver receives the signal, and then go to the selector.
  • the selector may transmit the four input signals input by the designated satellite to the matrix switch according to the first control information sent by the single chip microcomputer, where the first control information includes identification information of the designated satellite; the selector will specify the satellite input
  • the Unicable device modulates the four input signals input by the specified satellite to obtain the user frequency band UB center frequency to be locked by the satellite receiver, and transmits the UB center frequency to the satellite receiver.
  • the satellite receiver is locked to the UB center frequency and receives satellite signals of the designated satellite. Therefore, the Uni cable device provided by the embodiment of the present invention can connect multiple satellites, and can transmit the UB center frequency of the designated satellite to the satellite receiver according to the signal receiving requirement of the satellite receiver, so that the satellite receiver can lock the UB.
  • the center frequency receives the satellite signal of the designated satellite, thereby realizing the input of the multi-satellite signal.
  • FIG. 1 is a schematic diagram of a Uni cable device supporting multiple satellite inputs according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another Unicable device supporting multiple satellite inputs according to an embodiment of the present invention. detailed description
  • the Uni cable device supporting multi-satellite input provided by the embodiment of the present invention can be applied to the satellite signal receiving field as a new Unicable device in practical applications, since one Unicable device may be connected to multiple satellite receivers, and in order to meet different
  • the Unicable device provided by the embodiment of the present invention can connect multiple satellites, that is, support the input of multiple satellites.
  • the MCU in the Un i cable device can interact with the satellite receiver through the D i SEqC command. According to the satellite identification information carried in the DiSEqC command, the MCU can acquire the satellite signal to be received by the satellite receiver, and then the MCU can control the selector selection.
  • the UB center frequency to be locked by the satellite receiver can be obtained, and the UB center frequency is transmitted to the satellite receiver, and the satellite can be realized.
  • the receiver locks the UB center frequency and receives the satellite signal of the satellite.
  • FIG. 1 is a schematic diagram of a Unicable device supporting multiple satellite inputs according to an embodiment of the present invention.
  • the Unicable device includes a single chip microcomputer 101, a selector 102, and a matrix switch 103. among them,
  • the single chip microcomputer 101 is connected to the selector 102 for interacting with the satellite receiver to control the DiSEqC command by using the first digital satellite device, and transmitting the first control information to the selector according to the result of the interaction, and the first D i SEqC command carries There is identification information for the designated satellite.
  • the MCU can perform the DiSEqC command interaction with the satellite receiver.
  • the embodiment of the present invention provides a new DiSEqC command, and the command format is as follows: Among them, 5Ah identifies this new command with the command ID 5Ah, and Da tal can be an 8-bit.
  • Da tal is the satellite identification information, where bits 0-4 are reserved bits, and bits 5-7 are identification bits, which can be used to identify 8 satellites.
  • the MCU 101 can parse the command and determine which satellite the satellite receiver is to receive based on the value of the Datal parameter in the command.
  • the single chip microcomputer 101 may transmit first control information to the selector 102 that receives the satellite input signal, which carries the identification information of the satellite designated by the satellite receiver.
  • the satellite identification information may be a number, such as a satellite numbered 1, a satellite numbered 2, etc.; the satellite identification information may also be a satellite name, such as a satellite named Mini. Embodiments of the present invention do not limit the specific form of satellite identification information.
  • the selector 102 is configured to transmit, according to the first control information sent by the single chip, four input signals input by the designated satellite to the matrix switch, where the first control information includes the identification information of the designated satellite.
  • the selector 102 can connect multiple satellites, such as 4 satellites, 8 satellites, and each satellite. Four input signals can be input, so the input to the selector 102 is 16 input signals. After receiving the first control information transmitted by the single chip microcomputer 101, the selector 102 can select to receive the four input satellite signals of the corresponding designated satellite.
  • the device After the selector 102 transmits the four input signals of the designated satellite input to the matrix switch 103, the device modulates the four input signals input by the specified satellite to obtain the user frequency band UB center frequency to be locked by the satellite receiver, so that the satellite receives The machine locks the UB center frequency and receives satellite signals from the designated satellite.
  • the matrix switch 103 is a four-in and two-out matrix switch, and the matrix switch is controlled by a DC control signal provided by a satellite receiver.
  • the single chip microcomputer 101 may first negotiate with the satellite receiver using the second DiSEqC command to determine the UB number to be used and the corresponding UB center frequency, and then use the first DiSEqC command to interactively determine the selected satellite.
  • the Unicab le device can modulate the four input signals of the specified satellite input to the UB center frequency based on the results of the negotiation and interaction so that the satellite receiver can lock the UB center frequency and receive the satellite signal of the designated satellite.
  • the single chip microcomputer can interact with the satellite receiver using the first Di SEqC command, acquire which satellite the satellite receiver receives the signal according to the interaction result, and then send the first control information to the selector, and the selector can Transmitting, according to the first control information sent by the single chip microcomputer, four input signals input by the specified satellite to the matrix switch, the first control information includes identification information of the designated satellite; and the selector transmits four input signals of the designated satellite input to the matrix switch
  • the Unicable device modulates the four input signals input to the specified satellite to obtain the user frequency band UB center frequency to be locked by the satellite receiver, and transmits the UB center frequency to the satellite receiver to cause the satellite receiver to lock the UB center frequency and Receive satellite signals from designated satellites.
  • the Unicable device provided by the embodiment of the present invention can connect multiple satellites, and can transmit the UB center frequency of the designated satellite to the satellite receiver according to the signal receiving requirement of the satellite receiver, so that the satellite receiver can lock the UB center.
  • the frequency is received and the satellite signal of the designated satellite is received, thereby realizing the input of the multi-satellite signal.
  • the embodiment of the present invention further provides a Unicable device supporting multiple satellite inputs.
  • FIG. 2 is a schematic diagram of another Unicable device supporting multiple satellite inputs according to an embodiment of the present invention.
  • the Unicab le device includes a single chip 201.
  • the selector 202, the matrix switch 203, the satellite channel router SCR 204, the bandpass filter 205, the mixer 206 also include a Uni cable output and a legacy output. among them:
  • the single chip microcomputer 201 is connected to the selector, and is configured to interact with the satellite receiver to control the DiSEqC command by using the first digital satellite device, and send the first control information to the selector according to the result of the interaction, where the first DiSEqC command carries the designated satellite Identification information.
  • the MCU can perform the DiSEqC command interaction with the satellite receiver.
  • the embodiment of the present invention provides a new DiSEqC command, which carries the satellite identifier corresponding to the satellite signal that the satellite receiver needs to receive. information.
  • the microcontroller 201 can parse the command and determine which satellite the satellite receiver is to receive based on the satellite identification information carried in the command.
  • the satellite identification information may be a number, such as a satellite numbered 1, a satellite numbered 2, etc.; the satellite identification information may also be a satellite name, such as a satellite named Mini. Embodiments of the present invention do not limit the specific form of satellite identification information.
  • the single chip microcomputer 201 may first negotiate with the satellite receiver using the second DiSEqC command to determine the UB number to be used and the corresponding UB center frequency, and then use the first D i SEqC command to interactively determine the selected satellite.
  • the Unicab le device can modulate the four input signals of the specified satellite input to the UB center frequency based on the result of the negotiation and interaction, so that the satellite receiver can lock the UB center frequency and receive the satellite signal of the designated satellite. .
  • the selector 202 is configured to transmit, according to the first control information sent by the single chip, four input signals input by the designated satellite to the matrix switch, where the first control information includes identification information of the designated satellite.
  • the selector 202 can connect a plurality of satellites, such as 4 satellites and 8 satellites, and each satellite can input four input signals, so the input of the selector 202 is 16 input signals. Receiving After the first control information sent by the single chip microcomputer 201, the selector 202 can select to receive the four input satellite signals of the corresponding designated satellite.
  • the device After the selector 202 transmits the four input signals of the designated satellite input to the matrix switch 203, the device modulates the four input signals input by the specified satellite to obtain the user frequency band UB center frequency to be locked by the satellite receiver, so that the satellite receives The machine locks the UB center frequency and receives satellite signals from the designated satellite.
  • the selector 202 transmits the four input signals of the specified satellite input to the matrix switch, and the specific information includes: the selector selects the designated satellite from the connected plurality of satellites according to the identification information of the designated satellite in the first control information, and The four input signals specifying the satellite input are transmitted to the matrix switch.
  • the matrix switch 203 is a four-in and two-out matrix switch that is controlled by a DC control signal provided by a satellite receiver.
  • the selector 202 can input a vertical polarization/low local oscillator V/L signal, a vertical polarization/high local oscillator V/H signal, a horizontal polarization/low local oscillator H/L signal, a horizontal polarization/high local oscillation H of a certain satellite input.
  • the /H signal is input to the matrix switch 203, and the matrix switch 203 can output two sets of mixed signals according to the control signal sent from the SCR 204 to the matrix switch 203.
  • the SCR 204 is configured to control, according to the second control information transmitted by the single chip, the mixed signal corresponding to the matrix switch output, where the second control information includes the UB number and a frequency that needs to be locked. Among them, the frequency that needs to be locked corresponds to the UB center frequency.
  • the satellite receiver can negotiate with the Uni cab le device using the Di SEqC command to determine the UB number to be locked and the UB center frequency.
  • the single chip microcomputer 201 can transmit the second control information to the SCR according to the negotiation result, so that the SCR controls the matrix switch to modulate one of the four input signals input by the satellite to the UB center frequency according to the second control information.
  • the SCR 204 After receiving the two mixed signals output by the matrix switch 203, the SCR 204 can down-convert the mixed signal to obtain a fixed-frequency intermediate frequency signal.
  • the signal output by the matrix switch 203 can also be directly output through the Legacy output port.
  • a band pass filter 205 configured to filter a frequency-fixed intermediate frequency signal output by the SCR, A narrow sub-band output signal is obtained.
  • the mixer 206 is configured to perform a composite processing on the plurality of sub-band output signals output by the band pass filter to obtain a composite frequency band, that is, a UB center frequency to be locked by the satellite receiver.
  • the UB center frequency output by the mixer 206 can be output through the Un i cab 1 e output port of the device.
  • the single chip microcomputer can interact with the satellite receiver using the first DiSEqC command, acquire which satellite the satellite receiver receives the signal according to the interaction result, and then send the first control information to the selector, and the selector can be
  • the first control information sent by the single chip transmits the four input signals input by the specified satellite to the matrix switch, and the first control information includes the identification information of the designated satellite; the selector transmits the four input signals input by the designated satellite to the matrix switch
  • the Unicable device modulates the four input signals input by the specified satellite to obtain the user band UB center frequency to be locked by the satellite receiver, and transmits the UB center frequency to the satellite receiver to cause the satellite receiver to lock the UB center frequency and receive Specifies the satellite signal of the satellite.
  • the Unicable device provided by the embodiment of the present invention can connect multiple satellites, and can transmit the UB center frequency of the designated satellite to the satellite receiver according to the signal receiving requirement of the satellite receiver, so that the satellite receiver can lock the UB center.
  • the frequency is received and the satellite signal of the designated satellite is received, thereby realizing the input of the multi-satellite signal.
  • RAM random access memory
  • ROM read-only memory
  • EEPROM electrically programmable ROM
  • EEPROM electrically erasable programmable ROM
  • a register a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
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  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

本发明涉及一种支持多卫星输入的Unicable设备。该设备:单片机,与选择器相连接,用于与卫星接收机使用第一DiSEqC命令进行交互,并根据交互的结果向选择器发送第一控制信息,第一DiSEqC命令中携带有指定卫星的标识信息;选择器,用于根据单片机发送的第一控制信息,将指定卫星输入的四个输入信号传输至矩阵开关;选择器将指定卫星输入的四个输入信号传输至矩阵开关后,设备对指定卫星输入的四个输入信号进行调制处理,得到卫星接收机要锁定的用户频带UB中心频率,并将UB中心频率传输至卫星接收机以使得卫星接收机锁定UB中心频率并接收指定卫星的卫星信号。本发明使得卫星接收机用户可以接收不同卫星的信号。

Description

支持多卫星输入的一线技术 Unicable设备 技术领域
本发明涉及卫星信号接收领域, 尤其涉及一种支持多卫星输入的 Unicable设备。 背景技术
随着卫星电视用户对多媒体内容和高清电视易用性的要求增加, 卫星高 清接收机以及多调谐器的数据频录像机的应用也越来越广泛, 但在传统的直 播卫星业务 ( Direct Broadcasting Satellite Service, DBS )和高清地面 天线的安装中, 面对装有多个高频调谐器的卫星接收机或多颗卫星、 地面高 清接收机, 为了使 DBS户外单元(Out-door Unit, ODU )与这些调谐器相连, 需要多根独立的电缆, 这种方案大大增加了安装的复杂程度, 并付出 4艮高的 电缆敷设成本。
现有技术下, 为了解决上述问题, 釆用了 Unicable设备, 一线技术设备 将输入的四路信号输入到内置的四进二出的矩阵开关, 此矩阵开关由数字卫 星接收机提供的直流 13/18V控制信号进行控制, 从四进二出的矩阵开关输出 两路独立的混合信号, 混合信号中包括了垂直线极化高低频信号和水平线极 化高低频信号。 两路独立的混合信号分别进入第一卫星信道路由器 ( Satellite Channel Router, SCR) 芯片和第二 SCR芯片, 信号在 SCR芯 片里进一步降频, 转变成频率固定的中频信号, 再经带通滤波器产生窄子带 输出信号, 最后窄子带输出信号通过混合器形成复合频带, 这个复合频带由 Unicable接口输出, 通过一条电缆传送到卫星接收机。 Unicable设备釆用上 述技术方案, 利用已铺设好的一根同轴电缆, 配合一线技术产品, 解决了多 调谐器的连接问题, 使安装简便、 成本降低。 但是当前的 Unicable设备只支 持单卫星输入, 无法满足用户对多卫星信号接收的需求, 使得卫星电视的使 用和推广存在局限性。
发明内容
本发明实施例提供了一种支持多卫星输入的 Unicable设备, 以满足卫星 接收机用户接收不同卫星的信号的需求。
第一方面, 本发明实施例提供了一种支持多卫星输入的 Uni cable设备, 该设备包括选择器、 单片机、 矩阵开关:
所述单片机, 与所述选择器相连接, 用于与卫星接收机使用第一数字卫 星设备控制 (Dig i ta l Satel l i te Equipment Control , Di SEqC )命令进行交 互, 并根据交互的结果向所述选择器发送第一控制信息, 所述第一 DiSEqC命 令中携带有所述指定卫星的标识信息;
所述选择器, 用于根据所述单片机发送的所述第一控制信息, 将所述指 定卫星输入的四个输入信号传输至所述矩阵开关, 所述第一控制信息中包含 所述指定卫星的标识信息;
所述选择器将所述指定卫星输入的四个输入信号传输至矩阵开关后, 所 述设备对所述指定卫星输入的四个输入信号进行调制处理, 得到所述卫星接 收机要锁定的用户频带 UB中心频率, 以使得所述卫星接收机锁定所述 UB中 心频率并接收所述指定卫星的卫星信号。
根据第一方面, 在第一种可能的实现方式中, 所述设备还包括多个 SCR: 所述多个 SCR, 用于根据所述单片机传输的第二控制信息,控制所述矩阵开关 输出对应的混合信号, 所述第二控制信息中包括所述 UB号以及需要锁定的频 率。
根据第一方面的第一种可能的实现方式, 在第二种可能的实现方式中, 所述设备还包括多个带通滤波器、 混合器。
根据第一方面的第二种可能的实现方式, 在第三种可能的实现方式中, 所述设备对所述指定卫星输入的四个输入信号进行调制处理, 得到所述卫星 接收机要锁定的用户频带 UB中心频率具体包括: 所述多个 SCR中的每个 SCR 对对应的混合信号进行降频处理, 得到频率固定的中频信号; 所述多个带通 滤波器中的每个带通滤波器对对应的中频信号进行滤波处理, 得到子带输出 信号; 所述混合器对所述多个带通滤波器输出的多个子带输出信号进行复合 处理, 得到所述卫星接收机要锁定的 UB中心频率。
根据第一方面的第一种可能的实现方式, 在第四种可能的实现方式中, 所述单片机, 还用于与所述卫星接收机使用第二 DiSEqC命令进行交互, 得到 所述 UB号以及所述 UB中心频率。
根据第一方面或者第一方面的第一种、 第二种、 第三种、 第四种可能的 实现方式, 在第五种可能的实现方式中, 所述将所述指定卫星输入的四个输 入信号传输至所述矩阵开关具体包括: 所述选择器根据所述第一控制信息中 的所述指定卫星的标识信息, 从所连接的多颗卫星中选择所述指定卫星, 并 且将所述指定卫星输入的四个输入信号传输至所述矩阵开关。
本发明实施例提供的支持多卫星输入的 Unicable设备中, 单片机可以与 卫星接收机使用第一 Di SEqC命令进行交互, 根据交互结果获取到卫星接收机 要接收哪个卫星发射的信号, 然后向选择器发送第一控制信息, 选择器可以 根据单片机发送的第一控制信息, 将指定卫星输入的四个输入信号传输至矩 阵开关, 第一控制信息中包含指定卫星的标识信息; 选择器将指定卫星输入 的四个输入信号传输至矩阵开关后, Unicable设备对指定卫星输入的四个输 入信号进行调制处理, 得到卫星接收机要锁定的用户频带 UB中心频率, 并将 UB中心频率传输至卫星接收机以使得卫星接收机锁定 UB中心频率并接收指定 卫星的卫星信号。 由此, 本发明实施例提供的 Uni cable设备可以连接多颗卫 星, 并且可以根据卫星接收机的信号接收需求将指定卫星的 UB中心频率发送 到卫星接收机, 以使得卫星接收机可以锁定该 UB中心频率并接收该指定卫星 的卫星信号, 由此实现了多卫星信号的输入。 附图说明
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例或现有 技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附 图仅仅是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创 造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1 为本发明实施例提供的一种支持多卫星输入的 Uni cable设备示意 图;
图 2 为本发明实施例提供的另一支持多卫星输入的 Unicable设备示意 图。 具体实施方式
下面通过附图和实施例, 对本发明的技术方案做进一步的详细描述。 本发明实施例提供的支持多卫星输入的 Uni cable设备在实际应用时,作 为一种新的 Unicable设备可应用于卫星信号接收领域, 由于一个 Unicable 设备可能连接多颗卫星接收机, 而为了满足不同卫星接收机对不同卫星信号 的接收需求, 本发明实施例提供的 Unicable设备可以连接多颗卫星, 即支持 多颗卫星的输入。 Un i cable设备中的单片机可以通过 D i SEqC命令与卫星接收 机进行交互, 根据 DiSEqC命令中携带的卫星标识信息, 单片机可以获取到卫 星接收机要接收的卫星信号, 然后单片机可以控制选择器选择接收该卫星标 识信息对应的卫星输入信号, 通过对输入的卫星输入信号进行调制处理, 即 可得到卫星接收机要锁定的 UB中心频率, 将该 UB中心频率传输至卫星接收 机, 即可实现卫星接收机锁定该 UB中心频率, 接收该卫星的卫星信号。
图 1 为本发明实施例提供的一种支持多卫星输入的 Unicable设备示意 图,如图所示,该 Unicable设备包括单片机 101、选择器 102、矩阵开关 103。 其中, 单片机 101 , 与选择器 102相连接, 用于与卫星接收机使用第一数字卫星 设备控制 DiSEqC命令进行交互, 并根据交互的结果向选择器发送第一控制信 息, 第一 D i SEqC命令中携带有指定卫星的标识信息。
其中, 单片机可以与卫星接收机进行 DiSEqC命令交互, 为了实现本发明 的技术方案, 本发明实施例提供了一个新的 DiSEqC命令, 命令格式如下:
Figure imgf000007_0001
其中, 5Ah标识这个一个命令标识为 5Ah的新的命令, Da tal可以为一个 8位
Figure imgf000007_0002
Da tal为卫星标识信息, 其中第 0-4位为预留位, 第 5-7位为标识位, 可 以用来标识 8颗卫星。
当卫星接收机向 Unicable设备发送 Di SEqC命令时, 单片机 101可以解 析该命令, 根据命令中 Datal 参数的值来确定卫星接收机要接收哪颗卫星的 信号。
在单片机 101 确定要卫星接收机要锁定的卫星时, 可以向接收卫星输入 信号的选择器 102发送第一控制信息, 其中携带有卫星接收机指定的卫星的 标识信息。
可选地, 卫星标识信息可以为编号, 如编号为 1 的卫星、 编号为 2的卫 星等; 卫星标识信息也可以为卫星名称, 如名为 Mini的卫星等。 本发明实施 例并不对卫星标识信息的具体形式进行限定。
选择器 102 , 用于根据单片机发送的第一控制信息, 将指定卫星输入的四 个输入信号传输至矩阵开关, 第一控制信息中包含指定卫星的标识信息。
其中, 选择器 102可以连接多颗卫星, 如 4颗卫星、 8颗卫星, 每颗卫星 可以输入四个输入信号, 因此选择器 102的输入为 16个输入信号。 在接收到 单片机 101发送的第一控制信息后, 选择器 102可选择接收对应的指定卫星 的四个输入卫星信号。
选择器 102将指定卫星输入的四个输入信号传输至矩阵开关 103后, 设 备对指定卫星输入的四个输入信号进行调制处理, 得到卫星接收机要锁定的 用户频带 UB中心频率, 以使得卫星接收机锁定 UB中心频率并接收指定卫星 的卫星信号。
其中, 矩阵开关 103是一个四进二出的矩阵开关, 该矩阵开关由卫星接 收机提供的直流控制信号进行控制。
需要说明的是, 单片机 101可首先与卫星接收机使用第二 DiSEqC命令进 行协商确定要要使用的 UB号以及对应的 UB中心频率,然后再使用第一 DiSEqC 命令进行交互确定所要选择的卫星, 由此 Unicab le设备便可根据协商和交互 的结果将指定卫星输入的四个输入信号调制到 UB中心频率上, 这样卫星接收 机便可锁定该 UB中心频率, 并接收该指定卫星的卫星信号。
本发明实施例中, 单片机可以与卫星接收机使用第一 Di SEqC命令进行交 互, 根据交互结果获取到卫星接收机要接收哪个卫星发射的信号, 然后向选 择器发送第一控制信息, 选择器可以根据单片机发送的第一控制信息, 将指 定卫星输入的四个输入信号传输至矩阵开关, 第一控制信息中包含指定卫星 的标识信息; 选择器将指定卫星输入的四个输入信号传输至矩阵开关后, Unicable设备对指定卫星输入的四个输入信号进行调制处理, 得到卫星接收 机要锁定的用户频带 UB中心频率, 并将 UB中心频率传输至卫星接收机以使 得卫星接收机锁定 UB中心频率并接收指定卫星的卫星信号。 由此, 本发明实 施例提供的 Unicable设备可以连接多颗卫星, 并且可以根据卫星接收机的信 号接收需求将指定卫星的 UB中心频率发送到卫星接收机, 以使得卫星接收机 可以锁定该 UB中心频率并接收该指定卫星的卫星信号, 由此实现了多卫星信 号的输入。 本发明实施例还提供了一种支持多卫星输入的 Unicable设备, 图 2为本 发明实施例提供的另一支持多卫星输入的 Unicable设备示意图, 如图所示, 该 Unicab le设备包括单片机 201、 选择器 202、 矩阵开关 203、 卫星信道路由 器 SCR204、 带通滤波器 205、 混合器 206 , 还包括 Uni cable输出和 Legacy输 出。 其中:
单片机 201 , 与选择器相连接, 用于与卫星接收机使用第一数字卫星设备 控制 DiSEqC命令进行交互, 并根据交互的结果向选择器发送第一控制信息, 第一 DiSEqC命令中携带有指定卫星的标识信息。
其中, 单片机可以与卫星接收机进行 DiSEqC命令交互, 为了实现本发明 的技术方案, 本发明实施例提供了一个新的 DiSEqC命令, 该命令中携带有卫 星接收机需要接收的卫星信号对应的卫星标识信息。
当卫星接收机向 Unicable设备发送第一 DiSEqC命令时, 单片机 201可 以解析该命令, 根据命令中携带的卫星标识信息来确定卫星接收机要接收哪 颗卫星的信号。
可选地, 卫星标识信息可以为编号, 如编号为 1 的卫星、 编号为 2的卫 星等; 卫星标识信息也可以为卫星名称, 如名为 Mini的卫星等。 本发明实施 例并不对卫星标识信息的具体形式进行限定。
需要说明的是, 单片机 201可首先与卫星接收机使用第二 DiSEqC命令进 行协商确定要要使用的 UB号以及对应的 UB中心频率,然后再使用第一 D i SEqC 命令进行交互确定所要选择的卫星, 由此 Unicab le设备便可根据协商和交互 的结果将指定卫星输入的四个输入信号调制到 UB中心频率上, 这样卫星接收 机便可锁定该 UB中心频率, 并接收该指定卫星的卫星信号。
选择器 202 , 用于根据单片机发送的第一控制信息, 将指定卫星输入的四 个输入信号传输至矩阵开关, 第一控制信息中包含指定卫星的标识信息。
其中, 选择器 202可以连接多颗卫星, 如 4颗卫星、 8颗卫星, 每颗卫星 可以输入四个输入信号, 因此选择器 202的输入为 16个输入信号。 在接收到 单片机 201发送的第一控制信息后, 选择器 202可选择接收对应的指定卫星 的四个输入卫星信号。
选择器 202将指定卫星输入的四个输入信号传输至矩阵开关 203后, 设 备对指定卫星输入的四个输入信号进行调制处理, 得到卫星接收机要锁定的 用户频带 UB中心频率, 以使得卫星接收机锁定 UB中心频率并接收指定卫星 的卫星信号。
其中, 选择器 202 将指定卫星输入的四个输入信号传输至矩阵开关具体 包括: 选择器根据第一控制信息中的指定卫星的标识信息, 从所连接的多颗 卫星中选择指定卫星, 并且将指定卫星输入的四个输入信号传输至矩阵开关。
矩阵开关 203 , 是一个四进二出的矩阵开关, 该矩阵开关由卫星接收机提 供的直流控制信号进行控制。 选择器 202可以将某个卫星输入的垂直极化 /低 本振 V/L信号、 垂直极化 /高本振 V/H信号、 水平极化 /低本振 H/L信号、 水 平极化 /高本振 H/H信号输入到矩阵开关 203中,根据 SCR204向矩阵开关 203 发送的控制信号, 矩阵开关 203可以输出两组混合信号。
SCR204 , 用于根据所述单片机传输的第二控制信息, 控制所述矩阵开关 输出对应的混合信号, 所述第二控制信息中包括所述 UB号以及需要锁定的频 率。 其中, 需要锁定的频率与 UB中心频率对应。
需要说明的是, 卫星接收机在连接 Un i cab le设备时, 可与 Uni cab le设 备使用 Di SEqC命令进行协商以确定要锁定的 UB号以及 UB中心频率。 单片机 201可以根据协商结果向 SCR发送第二控制信息,以使得 SCR根据该第二控制 信息控制矩阵开关将卫星输入的四个输入信号中的某个频率信号调制到 UB中 心频率上。
SCR204接收到矩阵开关 203输出的两路混合信号后, 可以对混合信号进 行降频处理, 得到频率固定的中频信号。
可选地 ,矩阵开关 203输出的信号也可以直接通过 Legacy输出端口输出。 带通滤波器 205 , 用于对 SCR输出的频率固定的中频信号进行滤波处理, 得到窄子带输出信号。
混合器 206 , 用于对带通滤波器输出的多个子带输出信号进行复合处理, 得到一个复合频带, 即卫星接收机要锁定的 UB中心频率。
混合器 206输出的 UB中心频率可以通过设备的 Un i cab 1 e输出端口输出。 本发明实施例中, 单片机可以与卫星接收机使用第一 DiSEqC命令进行交 互, 根据交互结果获取到卫星接收机要接收哪个卫星发射的信号, 然后向选 择器发送第一控制信息, 选择器可以根据单片机发送的第一控制信息, 将指 定卫星输入的四个输入信号传输至矩阵开关, 第一控制信息中包含指定卫星 的标识信息; 选择器将指定卫星输入的四个输入信号传输至矩阵开关后, Unicable设备对指定卫星输入的四个输入信号进行调制处理, 得到卫星接收 机要锁定的用户频带 UB中心频率, 并将 UB中心频率传输至卫星接收机以使 得卫星接收机锁定 UB中心频率并接收指定卫星的卫星信号。 由此, 本发明实 施例提供的 Unicable设备可以连接多颗卫星, 并且可以根据卫星接收机的信 号接收需求将指定卫星的 UB中心频率发送到卫星接收机, 以使得卫星接收机 可以锁定该 UB中心频率并接收该指定卫星的卫星信号, 由此实现了多卫星信 号的输入。
专业人员应该还可以进一步意识到, 结合本文中所公开的实施例描述的 各示例的单元及算法步骤, 能够以电子硬件、 计算机软件或者二者的结合来 实现, 为了清楚地说明硬件和软件的可互换性, 在上述说明中已经按照功能 一般性地描述了各示例的组成及步骤。 这些功能究竟以硬件还是软件方式来 执行, 取决于技术方案的特定应用和设计约束条件。 专业技术人员可以对每 个特定的应用来使用不同方法来实现所描述的功能, 但是这种实现不应认为 超出本发明的范围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、 处理 器执行的软件模块, 或者二者的结合来实施。 软件模块可以置于随机存储器 ( RAM ) 、 内存、 只读存储器(ROM ) 、 电可编程 R0M、 电可擦除可编程 R0M、 寄存器、 硬盘、 可移动磁盘、 CD-R0M、 或技术领域内所公知的任意其它形式 的存储介质中。
以上所述的具体实施方式, 对本发明的目的、 技术方案和有益效果进行 了进一步详细说明, 所应理解的是, 以上所述仅为本发明的具体实施方式而 已, 并不用于限定本发明的保护范围, 凡在本发明的精神和原则之内, 所做 的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1、 一种支持多卫星输入的 Unicable设备, 其特征在于, 所述设备包括 选择器、 单片机、 矩阵开关:
所述单片机, 与所述选择器相连接, 用于与卫星接收机使用第一数字卫 星设备控制 DiSEqC命令进行交互, 并根据交互的结果向所述选择器发送第一 控制信息, 所述第一 DiSEqC命令中携带有所述指定卫星的标识信息;
所述选择器, 用于根据所述单片机发送的所述第一控制信息, 将所述指 定卫星输入的四个输入信号传输至所述矩阵开关, 所述第一控制信息中包含 所述指定卫星的标识信息;
所述选择器将所述指定卫星输入的四个输入信号传输至矩阵开关后, 所 述设备对所述指定卫星输入的四个输入信号进行调制处理, 得到所述卫星接 收机要锁定的用户频带 UB中心频率, 以使得所述卫星接收机锁定所述 UB中 心频率并接收所述指定卫星的卫星信号。
2、 根据权利要求 1所述的支持多卫星输入的 Unicable设备, 其特征在 于, 所述设备还包括多颗卫星信道路由器 SCR:
所述多个 SCR, 用于根据所述单片机传输的第二控制信息, 控制所述矩阵 开关输出对应的混合信号, 所述第二控制信息中包括所述 UB号以及需要锁定 的频率。
3、 根据权利要求 2所述的支持多卫星输入的 Unicable设备, 其特征在 于, 所述设备还包括多个带通滤波器、 混合器。
4、 根据权利要求 3所述的支持多卫星输入的 Unicable设备, 其特征在 于, 所述设备对所述指定卫星输入的四个输入信号进行调制处理, 得到所述 卫星接收机要锁定的用户频带 UB中心频率具体包括:
所述多个 SCR中的每个 SCR对对应的混合信号进行降频处理, 得到频率 固定的中频信号;
所述多个带通滤波器中的每个带通滤波器对对应的中频信号进行滤波处 理, 得到子带输出信号;
所述混合器对所述多个带通滤波器输出的多个子带输出信号进行复合处 理, 得到所述卫星接收机要锁定的 UB中心频率。
5、 根据权利要求 2所述的支持多卫星输入的 Unicable设备, 其特征在 于, 所述单片机, 还用于与所述卫星接收机使用第二 Di SEqC命令进行交互, 得到所述 UB号以及所述 UB中心频率。
6、 根据权利要求 1-5任一项所述的支持多卫星输入的 Unicable设备, 其特征在于, 所述将所述指定卫星输入的四个输入信号传输至所述矩阵开关 具体包括:
所述选择器根据所述第一控制信息中的所述指定卫星的标识信息, 从所 连接的多颗卫星中选择所述指定卫星, 并且将所述指定卫星输入的四个输入 信号传输至所述矩阵开关。
PCT/CN2014/073697 2014-03-19 2014-03-19 支持多卫星输入的一线技术Unicable设备 WO2015139233A1 (zh)

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US20100088729A1 (en) * 2008-10-06 2010-04-08 Eutelsat Microwave frequency satellite signal reception installation
CN202077024U (zh) * 2011-05-20 2011-12-14 深圳翔成电子科技有限公司 一种ku波段四星一体化单输出卫星高频头
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