CN104023187A - Satellite antenna control and reception decoding integrated device - Google Patents
Satellite antenna control and reception decoding integrated device Download PDFInfo
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- CN104023187A CN104023187A CN201310062727.8A CN201310062727A CN104023187A CN 104023187 A CN104023187 A CN 104023187A CN 201310062727 A CN201310062727 A CN 201310062727A CN 104023187 A CN104023187 A CN 104023187A
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Abstract
The invention discloses a satellite antenna control and reception decoding integrated device comprising a common radio frequency front unit, an audio frequency video decoding unit, and an antenna control unit; the common radio frequency front unit receives a satellite carrier wave signal from the satellite antenna, and outputs an automatic gain control signal, a carrier wave locking signal and an audio frequency video program transport stream signal; the audio frequency video decoding unit is connected with the common radio frequency front unit, and receives an audio frequency video program transport stream from the common radio frequency front unit; the antenna control unit receives the automatic gain control signal and the carrier wave locking signal from the common radio frequency front unit, and can adjust or lock a satellite antenna gesture according to the automatic gain control signal and the carrier wave locking signal. The satellite antenna control and reception decoding integrated device is high in integrated level, can improve a signal to noise ratio of the satellite signal, and is more convenient to maintain.
Description
Technical field
The present invention relates to communication technology of satellite, relate in particular to a kind of satellite antenna and control and receipt decoding integrated apparatus.
Background technology
In the application of conventional satellite television reception, satellite reception decoder (also referred to as satellite television receiver, satellite television Set Top Box) is the complete separate component of a system with satellite antenna, the two adheres to different enterprises separately and manufactures, and has clarification in certain roles and standard interface, as shown in Figure 1.Satellite antenna is for realizing acquiring satellite on boats and ships carrier and from motion tracking, to guarantee that under various motion states, various environmental condition, antenna, all the time accurately to satelloid, is set up stable state satellite transmission link and continued program receiving carrier signal.Satellite reception decoder is receiving under stabilized satellite TV programme carrier signal prerequisite, program carrier wave being carried out to the radio-frequency front-ends such as frequency reducing, tuning, demodulation processes, recover satellite television programming TS stream and be sent to that rear end audio/video decoder carries out demultiplexing, audio/video decoding, image restoring output is processed, thereby make user can on television set, enjoy smooth satellite television programming.Prior art Satellite Rcv decoder technical specification exists uncertain, and the technical specification that the TV programme of country variant, different satellite, different operators adopts is not quite similar.Satellite antenna manufacturer provides the antenna product that comprises antenna controller, need to after selecting satellite antenna, according to the satellite television programming specification of rating, select the satellite reception decoder of coupling, and collocation use realizes satellite television programming and receives requirement.But China Partial maritime provinces allows operation on the sea fisherman rating direct broadcasting satellite program, but satellite antenna and satellite television decoder product have been done to strict restriction from product specification aspect, it is the satellite programming that equipment can only receive No. 9 live broadcasting satellites of unique culminant star, the unique employing ABS-S of General Bureau of Radio, Film and Television technical standard, for example, so adopt existing equipment can cause hardware (to repeat, and introduce power divider and can produce many-sided defects such as signal noise two radio-frequency front-ends).
Summary of the invention
The present invention has overcome available technology adopting equipment complex and has received the defect that hardware waste that unique satellite-signal causes and unnecessary hardware reduce Signal-to-Noise, has proposed a kind of satellite antenna and has controlled and receipt decoding integrated apparatus.
The present invention proposes a kind of satellite antenna and control and receipt decoding integrated apparatus, comprising:
Shared radio frequency front end unit, it receives satellite carrier signal from satellite antenna, and exports automatic gaining controling signal, carrier lock signal and audio frequency and video program transport streams signal;
Audio frequency and video decoding unit, it is connected with described shared radio frequency front end unit, receives described audio frequency and video program transport streams signal from described shared radio frequency front end unit;
Antenna control unit, it receives described automatic gaining controling signal and carrier lock signal from described shared radio frequency front end unit, whether the current satellite that the described carrier lock signal of take is identified described satellite antenna aligning is that expection receives satellite, adjusts the attitude of described satellite antenna with described automatic gaining controling signal trend change information.
Wherein, described audio frequency and video decoding unit and the equipment connection that displays the play, described audio frequency and video program transport streams signal after described audio frequency and video decoding unit decodes by described equipment output audio signal and the vision signal of displaying the play.
Wherein, further comprise: the described audio frequency and video decoding unit configuration data that passes a parameter to described shared radio frequency front end unit, the satellite carrier signal that expection receives is set according to described parameter configuration data in described shared radio frequency front end unit.
Wherein, in antenna control unit, step comprises drive motors and seeks star/following feedback control unit, described star/following feedback control unit of seeking transfers to described drive motors according to described automatic gaining controling signal and carrier lock signal generation antenna adjustment signal, and described drive motors adjusts according to described antenna the attitude that signal changes or lock described satellite antenna.
Satellite antenna control of the present invention compared to prior art, has reduced the equipment such as a radio-frequency front-end, a micro-control unit (single-chip microprocessor MCU) and a L-band power divider with receipt decoding integrated apparatus, has reduced hardware cost.
The present invention takes integrated setting by the decoding of sky line traffic control and receiving, so the present invention is divided into two-way without the satellite-signal that satellite antenna is received, processes, and the power headroom that makes to input the satellite-signal of audio frequency and video decoding unit has at least improved 3dB.And satellite antenna of the present invention is controlled the quantity that has compared with prior art reduced physical size and connection cable with receipt decoding integrated apparatus, makes device integrated level of the present invention higher, and be easier to safeguard.
The present invention does not need L-band power divider is set, and has eliminated the signal noise that L-band power divider causes, and has improved the quality of satellite programming.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prior art Satellite television system.
Fig. 2 is the structure chart of satellite antenna control and receipt decoding integrated apparatus.
Fig. 3 is the schematic diagram of the satellite TV system of applied satellite sky line traffic control and receipt decoding integrated apparatus.
Embodiment
In conjunction with following specific embodiments and the drawings, the present invention is described in further detail.Implement process of the present invention, condition, experimental technique etc., except the content of mentioning specially below, be universal knowledege and the common practise of this area, the present invention is not particularly limited content.
Satellite antenna of the present invention is controlled with receipt decoding integrated apparatus and is comprised shared radio frequency front end unit 1, audio frequency and video decoding unit 2 and antenna control unit 3.As shown in Figure 2, shared radio frequency front end unit 1 is connected with antenna control unit 3 with audio frequency and video decoding unit 2 respectively.Shared radio frequency front end unit 1 is connected with satellite antenna, shared radio frequency front end unit 1 obtains the satellite carrier signal (comprising L-band intermediate-freuqncy signal) that satellite antenna receives, shared radio frequency front end unit 1 transfers satellite carrier signal to audio frequency and video program stream signal and transfers to audio frequency and video decoding unit 2, by 2 pairs of these audio frequency and video program stream signals of audio frequency and video decoding unit, decoded, thereby generating video signal and audio signal are used for showing image and play sound.Shared radio frequency front end unit 1 also transfers to antenna control unit 3 according to the Gain generating automatic gaining controling signal of satellite carrier signal (AGC signal) and carrier lock signal (LOCK signal), whether antenna control unit 3 as basis for estimation, to identify current satellite be that expection receives satellite if being take carrier lock signal designation, the automatic gaining controling signal trend change information of take is adjusted the attitude of described satellite antenna as basis for estimation, make satellite antenna all the time accurately to satelloid, set up stable state satellite transmission link and continue to receive satellite carrier signal.
More specifically, as shown in Figure 3, satellite antenna of the present invention is controlled and receipt decoding integrated apparatus and satellite antenna and the equipment connection that displays the play, satellite antenna is controlled with receipt decoding integrated apparatus and is received satellite carrier signal from satellite antenna, after processing, satellite antenna control and receipt decoding integrated apparatus export picture and sound by the equipment that displays the play, and day line traffic control and receipt decoding integrated apparatus regulate the attitude of satellite antenna via satellite, realize that satellite antenna is controlled and receipt decoding is integrated.
Shared radio frequency front end unit 1 is connected with satellite antenna, shared radio frequency front end unit 1 obtains satellite carrier signal from satellite antenna, for satellite carrier signal, carry out satellite identification or automatic tracking reference signal source, using satellite beacon or satellite programming carrier wave as with reference to analytic target, generate AGC signal and the LOCK signal of reflection satellite carrier Strength Changes and lock-out state.Shared radio frequency front end unit 1 also carries out satellite carrier signal the radio-frequency front-ends such as frequency reducing, tuning, demodulation to be processed, and generates audio frequency and video program stream signal (TS stream) and transfers to audio frequency and video decoding unit 2.With respect to prior art, the present invention does not carry out shunt to satellite carrier signal and processes, so the received signal power of audio frequency and video decoding unit 2 and antenna control unit 3 is improved, power headroom at least promotes 3dB.
Wherein, audio frequency and video decoding unit 2 receives the audio frequency and video program stream signal (TS flow data) of shared radio frequency front end unit 1, and audio frequency and video program stream signal is decoded and generated audio signal and vision signal.Audio frequency and video decoding unit 2 is sent to audio signal and vision signal in the equipment of displaying the play, by device plays sound and the output program picture of displaying the play.Audio frequency and video decoding unit 2 main bodys are generally circuit of single-chip integrated chip IC, and its inside is integrated with microcontroller and data communication interface, and to shared radio frequency front end unit, 1 transmission bus control signal (comprises I to audio frequency and video decoding unit 2
2c parameter configuration data), shared radio frequency front end unit 1 carries out operational factor configuration data according to bus control signal, comprises satellite carrier frequency, transmission symbol rate, chnnel coding format information etc.Whether the satellite carrier signal that current reception is identified according to parameter configuration data in shared radio frequency front end unit 1 is consistent with expection reception satellite carrier, while only having the satellite carrier receiving with expection when satellite carrier model identical, be that carrier lock signal designation is under locked state, the audio frequency and video programme content that audio frequency and video decoding unit 2 could normally move and be expected by the equipment output that displays the play.
Wherein, antenna control unit 3 comprises drive motors 31 and seeks star/following feedback control unit 32.Seek star/following feedback control unit 32 and analyze after AGC signal and LOCK signal, generate antenna adjustment signal and transfer in drive motors 31.Drive motors 31 is connected with satellite antenna.More specifically, drive motors 31 is connected with the mounting of satellite antenna, and drive motors 31 is adjusted the attitude of Signal Regulation or locking satellite antenna according to antenna, make satellite antenna all the time accurately to satelloid, guarantees stable satellite transmission link.
The present invention has reduced the equipment such as a radio-frequency front-end, single-chip microprocessor MCU, L-band power divider, has reduced hardware cost.And integrated level of the present invention is high, reduced connection cable quantity, make reliability higher, be easier to safeguard.
Protection content of the present invention is not limited to above embodiment.Do not deviating under the spirit and scope of inventive concept, variation and advantage that those skilled in the art can expect are all included in the present invention, and take appending claims as protection range.
Claims (4)
1. satellite antenna is controlled and a receipt decoding integrated apparatus, it is characterized in that, comprising:
Shared radio frequency front end unit (1), it receives satellite carrier signal from satellite antenna, and exports automatic gaining controling signal, carrier lock signal and audio frequency and video program transport streams signal;
Audio frequency and video decoding unit (2), it is connected with described shared radio frequency front end unit (1), receives described audio frequency and video program transport streams signal from described shared radio frequency front end unit (1);
Antenna control unit (3), it receives described automatic gaining controling signal and carrier lock signal from described shared radio frequency front end unit (1), whether the current satellite that the described carrier lock signal of take is identified described satellite antenna aligning is that expection receives satellite, adjusts the attitude of described satellite antenna with described automatic gaining controling signal trend change information.
2. satellite antenna as claimed in claim 1 is controlled and receipt decoding integrated apparatus, it is characterized in that, described audio frequency and video decoding unit (2) and the equipment connection that displays the play, described audio frequency and video program transport streams signal after described audio frequency and video decoding unit (2) decoding by described equipment output audio signal and the vision signal of displaying the play.
3. satellite antenna as claimed in claim 1 is controlled and receipt decoding integrated apparatus, it is characterized in that, further comprise: described audio frequency and video decoding unit (2) configuration data that passes a parameter to described shared radio frequency front end unit (1), the satellite carrier signal that expection receives is set according to described parameter configuration data in described shared radio frequency front end unit (1).
4. satellite antenna as claimed in claim 1 is controlled and receipt decoding integrated apparatus, it is characterized in that, in antenna control unit (3), step comprises drive motors (31) and seeks star/following feedback control unit (32), described star/following feedback the control unit (32) of seeking transfers to described drive motors (31) according to described automatic gaining controling signal and carrier lock signal generation antenna adjustment signal, and described drive motors (31) adjusts according to described antenna the attitude that signal changes or lock described satellite antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310062727.8A CN104023187A (en) | 2013-02-28 | 2013-02-28 | Satellite antenna control and reception decoding integrated device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310062727.8A CN104023187A (en) | 2013-02-28 | 2013-02-28 | Satellite antenna control and reception decoding integrated device |
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| CN104023187A true CN104023187A (en) | 2014-09-03 |
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| CN201310062727.8A Pending CN104023187A (en) | 2013-02-28 | 2013-02-28 | Satellite antenna control and reception decoding integrated device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104504884A (en) * | 2014-12-31 | 2015-04-08 | 四川金网通电子科技有限公司 | Automatic satellite-aligning device based on front panel display of receive decoder |
| CN104935899A (en) * | 2015-06-05 | 2015-09-23 | 华东师范大学 | Satellite finding device, system and method based on satellite beacons and service carrier waves |
| CN115632681A (en) * | 2022-09-01 | 2023-01-20 | 深圳市三为技术有限公司 | Signal transmission method, combining device and splitting device |
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| CN101893902A (en) * | 2010-07-07 | 2010-11-24 | 北京爱科迪信息通讯技术有限公司 | Satellite antenna control system and satellite finding method |
| CN101908919A (en) * | 2010-07-07 | 2010-12-08 | 北京爱科迪信息通讯技术有限公司 | Satellite antenna tracking system with multiple receivers |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050278752A1 (en) * | 2004-06-09 | 2005-12-15 | Pioneer Digital Design Centre, Ltd. | Automatic tuning system for a mobile DVB-T receiver |
| CN1968048A (en) * | 2006-09-19 | 2007-05-23 | 北京爱科迪信息通讯技术有限公司 | Intelligent portable satellite communications earth station and its control method |
| CN101893902A (en) * | 2010-07-07 | 2010-11-24 | 北京爱科迪信息通讯技术有限公司 | Satellite antenna control system and satellite finding method |
| CN101908919A (en) * | 2010-07-07 | 2010-12-08 | 北京爱科迪信息通讯技术有限公司 | Satellite antenna tracking system with multiple receivers |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504884A (en) * | 2014-12-31 | 2015-04-08 | 四川金网通电子科技有限公司 | Automatic satellite-aligning device based on front panel display of receive decoder |
| CN104504884B (en) * | 2014-12-31 | 2018-04-27 | 四川金网通电子科技有限公司 | Shown based on Rcv decoder front panel automatic to star device |
| CN104935899A (en) * | 2015-06-05 | 2015-09-23 | 华东师范大学 | Satellite finding device, system and method based on satellite beacons and service carrier waves |
| CN115632681A (en) * | 2022-09-01 | 2023-01-20 | 深圳市三为技术有限公司 | Signal transmission method, combining device and splitting device |
| CN115632681B (en) * | 2022-09-01 | 2024-07-05 | 深圳市三为技术有限公司 | Signal transmission method, combiner and branching device |
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Application publication date: 20140903 |