CN201435786Y - Portable satellite data audio and video integrated application communication terminal - Google Patents
Portable satellite data audio and video integrated application communication terminal Download PDFInfo
- Publication number
- CN201435786Y CN201435786Y CN 200920107716 CN200920107716U CN201435786Y CN 201435786 Y CN201435786 Y CN 201435786Y CN 200920107716 CN200920107716 CN 200920107716 CN 200920107716 U CN200920107716 U CN 200920107716U CN 201435786 Y CN201435786 Y CN 201435786Y
- Authority
- CN
- China
- Prior art keywords
- module
- satellite
- data
- interface
- communication terminal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Images
Abstract
A portable satellite data audio and video integrated application communication terminal comprises a baseband terminal and an interface module, an intermediate-frequency modulation and demodulation module, a radio frequency emitting and receiving module and a portable antenna system module, wherein the data of integrated services like audio signals, telephonic speech sounds and H.246 video data aretreated and packed by the baseband terminal and interface module and sent to the intermediate-frequency modulation and demodulation module; the intermediate-frequency modulation and demodulation module performs error correction of coding to the input digit signal code stream and modulates in the OPSK manner, converts modulated signals to intermediate-frequency modulation signals, and outputs theintermediate-frequency modulation signals to the radio frequency emitting and receiving module; and the transmitted intermediate-frequency modulation signals are transformed into the Ku wave range high-power radio frequency signal through the radio frequency emitting and receiving module, output into the portable antenna system module through the Ku wave range waveguide, and sent to the satellite.The utility model has the advantages of low cost, low running cost, high efficiency, flexibly structure, good compatibility and convenient capacity expansion.
Description
Technical field
The utility model relates to a kind of communication terminal, particularly relates to the mobile terminals of a kind of satellite data voice and video integrated application.
Background technology
At present, communication system traffic develops into the present transmission that comprises speech, data and the comprehensive business of video image from single transmission of video images.
But when the violent earthquake of in February, 2008 southern big snow disaster of China and Sichuan generation in May, though the integrated services communication system has been widely used in industry-by-industry and fields such as broadcasting and TV, telecommunications, public security, People's Armed Police, army, rescue and relief work and oil exploration, but because the interruption of terrestrial communication link, for the moment, one line on-the-spot a lot of actual situation, information, still can't in time transmit, do decision references thereby cause can not be in the very first time situation, the information of reality being offered relevant department, caused the loss on inevitable personnel and the material.
At above-mentioned natural calamity, nowadays, maturation along with communication technology of satellite, and satellite communication can be set up communication link in several minutes, realize the transfer function advantage of video image, voice and high-speed data, how setting up quick, easy and simple to handle, reliable integrated service satellite communication system has been a main application development direction of current communication technology of satellite.
The utility model content
Based on the present situation that exists of communication system traffic, main purpose of the present utility model is to provide a kind of portable satellite communications terminal that can transmit data, speech, video image, and it can be applicable to industry-by-industry and fields such as broadcasting and TV, telecommunications, public security, People's Armed Police, army, rescue and relief work and oil exploration.
In order to achieve the above object, the utility model has adopted following technical proposals:
Described portable satellite data-voice video synthesis application communication terminal is integrated Ku/C waveband radio frequency transmitted in both directions, the coded modulation demodulation of mf band intermediate frequency and have the base band terminal code capacity transmission of integrated services such as voice, video, IP data and the satellite communication terminal of using, it comprises base band terminal and interface module, intermediate frequency Modulation and demodulation module, radio-frequency transmissions and receiver module and the portable antenna system module that links to each other in regular turn.
Wherein, described base band terminal and interface module are in order to AES/EBU (ASI code stream) stereo audio signal and call voice, H.264 the data of integrated service such as video data are handled packing and are sent into intermediate frequency Modulation and demodulation module, and in this base band terminal and interface module, include audio coder, and after AES/EBU (ASI code stream) stereo audio signal is sent into this audio coder, this audio coder compresses according to the stereo audio signal of mpeg standard to input, coding, change stereo audio signal into MPEG digital signal that stream rate is 128-384Kbps, and finish the coding of baseband signal and send into intermediate frequency Modulation and the demodulating unit module; Described intermediate frequency Modulation and demodulation module are to the MPEG of input and call voice, H.264 the digital channel number streams such as data of integrated service such as video data carry out carrying out after the error correction coding modulation of OPSK (phase shift keying modulation) mode again, and with described digital channel number circulation the becoming modulated intermediate frequency signal that IF-FRE is the OPSK of 950MHz-1450MHz, finish original stereo signal and be transformed into the digital satellite modulated intermediate frequency signal, and this digital satellite modulated intermediate frequency signal is sent into described radio-frequency transmissions and receiver module; Described radio-frequency transmissions and receiver module change the modulated intermediate frequency signal that intermediate frequency Modulation and demodulating unit module send into Ku wave band high-power RF signal, and the high-power signal of the Ku wave band after will changing is sent into the antenna feed of described portable antenna system module by the waveguide of Ku wave band, and the reflection of the primary reflection surface by described portable antenna system module sends goes up specified satellite, and then finishes the transmission work of audio signal, vision signal, integrated service data.
In like manner, described portable antenna system module receives the satellite-signal of Ku wave band above satellite, become the modulated intermediate frequency signal that IF-FRE is 950MHz-1450MHz through radio-frequency transmissions and receiver module, and this modulated intermediate frequency signal is through the demodulation of intermediate frequency Modulation and demodulation module, signal is delivered to base band terminal and interface module, thereby base band terminal and interface module are reduced signal, and then finish the reception work to audio signal, vision signal, integrated service data.
Portable satellite data-voice video synthesis application communication terminal described in the utility model has following beneficial effect:
1) advanced technology: collection data, speech, fax and image are transmitted in one, and adopt advanced L-band intermediate frequency technology, cover whole 500MHz satellite bandwidth of operation, and frequency selects not to be subjected to the satellite repeater bandwidth constraints;
2) low cost: the carrier wave in every station, can utilize the transmitting power of equipment to greatest extent, equipment amount is economized most, and utilization rate of equipment and installations is the highest, greatly reduces the network investment expense;
3) low running cost: adopted such as a series of advanced technologies such as voice compression, data compression, IP transmission, greatly reduced occupied bandwidth, reduced the satellite repeater hire charge;
4) high efficiency: integrate functions such as protocol conversion, packet switching and Route Selection, speech coding/decoding, the voice communication quality is good;
5) structure is flexible: can form Star network, mesh network and hybrid network flexibly.Can be that the user provides flexibly, Networking Solutions ﹠ provisioned cheaply;
6) compatible good: as to support speech, data, network connection interface and the communication protocol of all standards, and have favorable compatibility with various terminal equipments;
7) dilatation is convenient: have the user just only append under the situation of a small amount of central station investment can dilatation net interior nodes ability, guarantee that existing investment is fully used.
Description of drawings
Fig. 1 is the functional frame composition of portable satellite data-voice video synthesis application communication terminal described in the utility model;
Fig. 2 is the concrete module map of portable satellite data-voice video synthesis application communication terminal described in the utility model.
Embodiment
Come portable satellite data-voice video synthesis application communication terminal described in the utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.
Portable satellite data-voice video synthesis application communication terminal described in the utility model is integrated Ku/C waveband radio frequency transmitted in both directions, the coded modulation demodulation of L-band intermediate frequency of a cover and base band terminal code capacity transmission with integrated services such as voice, video, IP data and the satellite communication terminal of using, and wherein all satellite communication equipments all are to adopt portable construction.
See shown in Fig. 1 and Fig. 2, this communication terminal 1 comprises base band terminal and interface module 10, intermediate frequency Modulation and demodulation module 12, radio-frequency transmissions and receiver module 13 and portable antenna system module 14, and this described base band terminal and interface module 10, intermediate frequency Modulation and demodulation module 12, radio-frequency transmissions and receiver module 13 and portable antenna system module 14 are for being connected in regular turn.
Wherein, described base band terminal and interface module 10 have been gathered " satellite television video coder/decoder ", " stereo audio signal " and " business information such as 1-4 road two-way satellite phone, internet data, streaming media video signal, message interactive platform " module interface, can provide H.264 high-quality or the MPEG-4 video compression, also can on 10/,100,000,000 networks, realize the speed of frames each seconds 25 (pal mode), under comparable bandwidths, can transmit picture more clearly, realize IP-based point-to-point analog video expansion equally.
For image coding/decoding H.264/Mpeg-4,, therefore can be configured to CIF, 2CIF (HalfD1) or 4CIF (D1) neatly as required in actual applications because it can realize that satellite low bandwidth situation reaches the high quality graphic of 25 frames (PAL) following each second.
This described base band terminal and interface module 10 can be to AES/EBU (ASI code stream) stereo audio signal and call voices, H.264 the data of integrated service such as video data are handled packing, and wherein be built-in with 10/100Base-T ethernet standard interface, this is the accurate interface support of network mark UDP/IP too, TCP/IP, multiple transmission means such as ip multicast, and support the VoIP speech, i.e. integrated speech processing unit 100 in this base band terminal and interface module 10, the bandwidth voice compression of the 64K of a standard can be become the speech of 8-12K by this speech processing unit 100, and can realize 2 road FXS (Foreign Exchange Station at a speech processing unit 100, FXS) interface, support G.711 (A-Law/u-Law), G.726 (16/24/32/40kbps), G.729A, G723.1, by built-in 10/100BaseT ethernet port interconnection, simultaneously, support qos feature to guarantee voice quality, support access control.
For above-mentioned, because in the satellite communication network system, the costliness of satellite bandwidth resource, and on satellite information transmitted, all need to compress the back transmission, therefore in actual applications, the base band terminal of portable satellite data-voice video synthesis application communication terminal 1 described in the utility model and interface module 10 are for adopting the compressed video transmission of satellite arrowband, and comprise compressed video unit, satellite arrowband 101 in this described base band terminal and interface module 10, the narrowband video of the standard of a 2M can be compressed into the video of 512K-1M by this unit, compression ratio is 50-75%, finish the video code model of MPEG4 or H264, picture quality can arrive 15-25 frame/second, supports PAL and N standard.
In the practical application, the video input can be: 1Vpp-75 ohm (NTSC/PAL self adaptation); Image is supported form: CIF, HALFD1, D1; Image compression mode: MPEG-4 (16kbps-4Mbps can establish); Transmission frame per second: the frame per second of supporting 25F/S (PAL), 30F/S (NTSC); Video formats: TSC-system or Phase Alternation Line system, support Chinese osd function; Bandwidth: can establish from 64-4000Kbps; Interface standard: Ethernet 10/100M Base-T.
This compressed video unit, described satellite arrowband has adopted moving image compensation mechanism, moving image converting mechanism and moving image encoding mechanism.Wherein, described moving image compensation mechanism is the motion compensation of the multi-reference frame of maximum 32 reference frames of use; Use the piece of maximum 16 * 16 minimums 4 * 4 to carry out estimation and motion compensation, so that more accurate cutting apart carried out in the moving region in the image sequence; Adopt the luminance component predicted value of filter generation 1/2nd pixels of six taps, reduce " ring " effect finally to obtain the image of more sharpening; Adopt 16 * 16 macro block in the presence mode; And in weighted motion compensated, adopt 1/4 pixel precision, the prediction of more high-precision moving mass is provided.Described moving image converting mechanism then has been to use removes the block effect filtering device in the ring, be prevalent in other blocking effects to alleviate, adopt 4 * 4 conversion and 8 * 8 conversion, and can in 4 * 4 conversion and 8 * 8 conversion, carry out adaptive selection and adopt the count selection of carrying out conversion of coding (CABAC) of context binary based on the Video Codec of discrete cosine transform.Described moving image encoding mechanism is encoded to the conversion coefficient after quantizing for adopting based on contextual variable-length encoding (CAVLC); Use Exponential-Golomb entropy coding scheme that the syntactic element of non-CAVLC is encoded; Used sequence parameter set (SPSs) and picture parameter set (PPSs) that the more high robust (robustness) and the flexibility of coding effect are provided; Adopt and switch band technology formation video code flow; Adopt macro block pattern of rows and columns, the base unit-macroblock encoding order of change image encoding and adopt data partition (DP for Datapartitioning) technology to improve the robustness of video code flow to anti-channel error code/packet loss.
In addition, in described base band terminal and interface module 10, also include audio coder 102, and after AES/EBU (ASI code stream) stereo audio signal is sent into this audio coder, this audio coder compresses, encodes according to the stereo audio signal of mpeg standard to input, change stereo audio signal into MPEG digital signal that stream rate is 128-384Kbps, and finish the coding of baseband signal and send into intermediate frequency Modulation and demodulating unit module 12.
Described intermediate frequency Modulation and demodulation module 12 comprise mf band interface, EIA-530/422 interface and interface V.35, and are connected in described radio-frequency transmissions and receiver module by the mf band interface.This intermediate frequency Modulation and demodulation module 12 are in order to the MPEG of input and call voice, H.264 the digital channel number streams such as data of integrated service such as video data carry out carrying out after the error correction coding modulation of OPSK mode again, and with described digital channel number circulation the becoming modulated intermediate frequency signal that IF-FRE is the OPSK of 950MHz-1450MHz, finish original stereo signal and be transformed into the digital satellite modulated intermediate frequency signal, and this digital satellite modulated intermediate frequency signal is sent into described radio-frequency transmissions and receiver module 13.
Described radio-frequency transmissions and receiver module 13 changes Ku wave band high-power RF signal into for the modulated intermediate frequency signal that intermediate frequency Modulation and demodulating unit module 12 are sent, and the high-power signal of the Ku wave band after will changing is sent into the antenna feed of described portable antenna system module 14 by the waveguide of Ku wave band, and the reflection of the antenna main reflector by described portable antenna system module 14 sends goes up specified satellite, and then finishes the transmission work of audio signal, vision signal, integrated service data.
This described radio-frequency transmissions and receiver module 13 comprise radiofrequency launcher 130, radio frequency receiver 131 and radio frequency unit power supply direct current module 132, wherein, the modulated intermediate frequency signal that described radio frequency receiver 130 can send intermediate frequency Modulation and demodulation module 12 amplifies, and convert its frequency conversion to radiofrequency signal and send to radiofrequency launcher 130, in like manner, for picking process, when described portable antenna system module 14 receives the satellite-signal of Ku wave band above satellite 2 after, this described radio frequency receiver 131 converts the radiofrequency signal frequency conversion that receives to the modulated intermediate frequency signal of 950MHz-1450MHz, and be sent to intermediate frequency Modulation and demodulation module 12 carries out demodulation, and then the signal after the demodulation delivered to base band terminal and interface module 10, in base band terminal and interface module 10, finish the signal reduction, thereby finish audio signal, vision signal, the reception work of integrated service data.
Again, in the utility model, described radio frequency unit power supply direct current module 132 is for supporting 16-70 volt direct-current working volts, thereby solved the problem of power supply power supply with heat radiation, and make that described portable satellite data-voice video synthesis application communication terminal 1 volume and weight in the utility model is all reduced, help portablely more, and the power consumption of power supply has also obtained minimizing.
In addition, quicken transmission in the transfer of data of portable satellite data-voice video synthesis application communication terminal 1 described in the utility model for adopting satellite IP.Because in the satellite communication network system, the life period time-delay of satellite transmits own, when carrying out the transmission of some responsive IP data, can produce responsive IP data lose, high bit error, data re-transmitting cause efficiency of transmission to hang down inferior problem, therefore the thing of on satellite transmits, delaying time at satellite IP data, in this described portable satellite data-voice video synthesis application communication terminal 1, adopted the TCP acceleration ability of satellite special use, it can make data transmission bauds be improved significantly, and is about 3 times when not using TCP acceleration technology.
Portable satellite data-voice video synthesis application communication terminal 1 described in the utility model can be finished the transmission of emergent field data, voice, image, and the type of service of transmission can relate to business information such as " single-definition digital satellite television signal ", " stereo audio signal ", " integrated service information---1-4 road two-way satellite phone, internet data, message interactive platform ".
In addition, portable satellite data-voice video synthesis application communication terminal 1 described in the utility model in use, as long as install simply and be connected, only need connection power supply or starter-generator just can start working, business can begin transmission, and terminal described in the utility model has scalable and expanded function, can satisfy professional live needs.This communication terminal 1 can be taken the various vehicles (such as aircraft, automobile, steamer etc.) and go to different areas, carries out emergency communication, also can be used as the fixed satellite terminal station.It can be widely used in industry-by-industry and fields such as broadcasting and TV, telecommunications, public security, People's Armed Police, army, rescue and relief work and oil exploration, sets up quick, easy and simple to handle, reliable integrated service satellite communication system.
Claims (5)
1. portable satellite data-voice video synthesis application communication terminal, it is characterized in that, comprise base band terminal and interface module, intermediate frequency Modulation and demodulation module, radio-frequency transmissions and receiver module and portable antenna system module, and this described base band terminal and interface module, intermediate frequency Modulation and demodulation module, radio-frequency transmissions and receiver module and portable antenna system module are for being connected in regular turn;
Wherein, described base band terminal and interface module comprise speech processing unit, compressed video unit, satellite arrowband and compress, encode according to the stereo audio signal of mpeg standard to input, and change this stereo audio signal into MPEG digital signal audio frequency encoder that stream rate is 128-384Kbps; Described intermediate frequency Modulation and demodulation module comprise mf band interface, EIA-530/422, interface and interface V.35, and be connected in described radio-frequency transmissions and receiver module by the mf band interface; Described radio-frequency transmissions and receiver module comprise radiofrequency launcher, radio frequency receiver and radio frequency unit power supply direct current module.
2. according to the data-voice of portable satellite described in the claim 1 video synthesis application communication terminal, it is characterized in that described radio frequency unit power supply direct current module is supported 16-70 volt direct-current working volts.
3. according to the data-voice of portable satellite described in the claim 1 video synthesis application communication terminal, it is characterized in that the transfer of data of described portable satellite data-voice video synthesis application communication terminal is quickened transmission for adopting satellite IP.
4. according to the data-voice of portable satellite described in the claim 1 video synthesis application communication terminal, it is characterized in that, be built-in with the ethernet standard interface in described base band terminal and the interface module.
5. according to the data-voice of portable satellite described in the claim 1 video synthesis application communication terminal, it is characterized in that compressed video unit, described satellite arrowband has adopted moving image compensation mechanism, moving image converting mechanism and moving image encoding mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920107716 CN201435786Y (en) | 2009-04-27 | 2009-04-27 | Portable satellite data audio and video integrated application communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920107716 CN201435786Y (en) | 2009-04-27 | 2009-04-27 | Portable satellite data audio and video integrated application communication terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201435786Y true CN201435786Y (en) | 2010-03-31 |
Family
ID=42054600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920107716 Expired - Fee Related CN201435786Y (en) | 2009-04-27 | 2009-04-27 | Portable satellite data audio and video integrated application communication terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201435786Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964999A (en) * | 2010-08-31 | 2011-02-02 | 航天恒星科技有限公司 | Voice quality enhancement method applied to satellite communication network |
| CN104184513A (en) * | 2013-05-24 | 2014-12-03 | 成都林海电子有限责任公司 | VSAT gateway station for transmitting high-definition video |
| CN104348762A (en) * | 2013-08-02 | 2015-02-11 | 成都林海电子有限责任公司 | Remote-terminal baseband device data processing method of very small aperture terminal |
| CN111726590A (en) * | 2020-06-10 | 2020-09-29 | 北京中联合超高清协同技术中心有限公司 | Video signal transmission method and device and electronic equipment |
| CN116865835A (en) * | 2023-08-08 | 2023-10-10 | 中国人民解放军61035部队 | Portable detection system and method for satellite communication portable station |
| CN117335862A (en) * | 2023-10-13 | 2024-01-02 | 中国卫通集团股份有限公司 | C frequency band miniaturized low-power consumption portable communication terminal |
-
2009
- 2009-04-27 CN CN 200920107716 patent/CN201435786Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964999A (en) * | 2010-08-31 | 2011-02-02 | 航天恒星科技有限公司 | Voice quality enhancement method applied to satellite communication network |
| CN101964999B (en) * | 2010-08-31 | 2012-11-14 | 航天恒星科技有限公司 | Voice quality enhancement method applied to satellite communication network |
| CN104184513A (en) * | 2013-05-24 | 2014-12-03 | 成都林海电子有限责任公司 | VSAT gateway station for transmitting high-definition video |
| CN104348762A (en) * | 2013-08-02 | 2015-02-11 | 成都林海电子有限责任公司 | Remote-terminal baseband device data processing method of very small aperture terminal |
| CN111726590A (en) * | 2020-06-10 | 2020-09-29 | 北京中联合超高清协同技术中心有限公司 | Video signal transmission method and device and electronic equipment |
| CN116865835A (en) * | 2023-08-08 | 2023-10-10 | 中国人民解放军61035部队 | Portable detection system and method for satellite communication portable station |
| CN116865835B (en) * | 2023-08-08 | 2024-01-23 | 中国人民解放军61035部队 | Portable detection system and method for satellite communication portable station |
| CN117335862A (en) * | 2023-10-13 | 2024-01-02 | 中国卫通集团股份有限公司 | C frequency band miniaturized low-power consumption portable communication terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201435786Y (en) | Portable satellite data audio and video integrated application communication terminal | |
| CN101552913B (en) | Multi-channel video communication system and processing method | |
| US8451859B2 (en) | Packet type retransmission system for DMB service and retransmission device of DMB terminal | |
| CN105052149A (en) | Improved rtp payload format designs | |
| CN101969540A (en) | Implementation method, device and system of video call | |
| CN100544445C (en) | A kind of wireless video transmission system based on the Brew platform | |
| CN100454821C (en) | Method for resource sharing among MCUs in videoconference system | |
| CN110418167A (en) | A kind of broadcast TV program Transmission system based on 5G | |
| US8477918B2 (en) | Multimedia providing service | |
| CN205545736U (en) | Online play device of video | |
| CN103428493A (en) | Light wireless transmission system for high-definition videos | |
| CN115938373A (en) | Audio transmission coding and decoding processing method and system for manned aircraft and ground station | |
| US8564639B2 (en) | Multimedia communication system, multimedia communication device and terminal | |
| US8588379B2 (en) | Multimedia communication system, multimedia communication device and terminal | |
| CN201435790Y (en) | Wireless multi-carrier vehicle bidirectional audio-video and data transmission device | |
| US9491301B2 (en) | Multimedia providing service | |
| KR102076732B1 (en) | Video transmission system based on two kinds of wireless network and method thereof | |
| KR102128904B1 (en) | Wireless converting system for Wi-Fi video transmitter and LTE/5G public transmitter utilizing an H.264 to an HEVC/H.265 transcoder technology | |
| CN102075725A (en) | Method and device for displaying network state in visual terminal | |
| CN219875747U (en) | Portable satellite communication application system | |
| JP3031468B2 (en) | Two-way transmission device | |
| JP3033702B2 (en) | Transmission device | |
| CN2672967Y (en) | Radio frequency extension digital three net blend transmission device | |
| KR100713363B1 (en) | Apparatus and method for transmitting mpeg | |
| CN202696598U (en) | Three-network combination transmission device based on wireless spread spectrum technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20110427 |