CN201717963U - Wireless high-definition video transmission system receiver - Google Patents
Wireless high-definition video transmission system receiver Download PDFInfo
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- CN201717963U CN201717963U CN2010201286107U CN201020128610U CN201717963U CN 201717963 U CN201717963 U CN 201717963U CN 2010201286107 U CN2010201286107 U CN 2010201286107U CN 201020128610 U CN201020128610 U CN 201020128610U CN 201717963 U CN201717963 U CN 201717963U
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Abstract
The utility model discloses a wireless high-definition video transmission system receiver, which relates to the communication field, and aims to solve the technical problems that a traditional wireless video transmission system product can not achieve high-capacity data transmission on a low bandwidth channel, has low transmission video resolution ratio and large time delay and the like. The wireless high-definition video transmission system receiver comprises an antenna, a radio frequency processing module, a base band processing module, a video format conversion module, a DFS module and a MCU system control module. The wireless high-definition video transmission system receiver is suitable for transmitting wireless high-definition video.
Description
Technical field
The utility model relates to electronic communication field, particularly a kind of transmitter that is used for the WirelessHD video transmission.
Background technology
The WirelessHD Video transmission system is the transmission system that is specifically designed to transmission high definition (can reach 1080P) video, is applied to fields such as family, office, amusement.
The similar wireless video transmission system product that exists on the current market, but adopted video compression technology mostly, mainly there is following shortcoming:
1. can not on the low bandwidth channel, realize the large-capacity data transmission;
2. need to use video compression, the resolution of transmission of video is lower than 1080P;
3. transmission delay is big.
Summary of the invention
The utility model is intended to solve technical problems such as the existing resolution that can not realize large-capacity data transmission, transmission of video on the low bandwidth channel of conventional wireless Video transmission system product is low, transmission delay is big, so that a kind of delay time WirelessHD Video transmission system receiver of characteristics such as little of resolution height, the video transmission that can realize large-capacity data transmission, transmission of video on the low bandwidth channel that has to be provided.
The purpose of this utility model is achieved through the following technical solutions.
1. WirelessHD Video transmission system receiver of the present utility model, comprise antenna, WHDI radio frequency processing module 14, WHDI baseband processing module 12, video format conversion module 11, DFS module 17 and MCU system control module 13, wherein the output of reception antenna 16 and power amplifier 15 is connected WHDI radio frequency processing module first input end 141, and the input of power amplifier 15 is connected with an antenna; WHDI radio frequency processing module second output 143 connects WHDI baseband processing module first input end 122, WHDI baseband processing module the 4th output 127 connects an input of video format conversion module 11, and the output of video format conversion module 11 connects the input of outside receiving equipment 19; WHDI radio frequency processing module the 3rd output 146 connects WHDI baseband processing module four-input terminal 128; WHDI radio frequency processing module first output 142 connects the input of power amplifier 15; WHDI radio frequency processing module the 3rd input 145 connects WHDI baseband processing module the 5th output 129; WHDI radio frequency processing module second input 144 connects WHDI baseband processing module first output 121; WHDI baseband processing module second input 123 connects another output of power amplifier 15; WHDI baseband processing module the 3rd input 124 connects the output of DFS module 17; WHDI baseband processing module second output 125 connects an input of DFS module 17, and another input of DFS module 17 is connected with an antenna; WHDI baseband processing module the 3rd input/output terminal 126 connects the input/output terminal of MCU system control module 13; The output of MCU system control module 13 connects another input of video format conversion module 11.
WirelessHD Video transmission system receiver of the present utility model, wherein said video format conversion module 11 is the HDMI transmitting chip.
WirelessHD Video transmission system receiver of the present utility model, wherein said WHDI baseband processing module 12 is AMN2220, described WHDI radio frequency processing module 14 is AMN3210.
WirelessHD Video transmission system receiver of the present utility model, the input/output terminal of wherein said MCU system control module 13 and WHDI baseband processing module 12 is the SPI interface.
WirelessHD Video transmission system receiver of the present utility model, wherein said WHDI radio frequency processing module the 3rd input 145 is connected by the SPI interface with WHDI baseband processing module the 5th output 129.
WirelessHD Video transmission system receiver of the present utility model, wherein said power amplifier 15 is AWL6951R.
The beneficial effect of the utility model WirelessHD Video transmission system receiver:
1. can on the low bandwidth channel, realize the large-capacity data transmission;
2. the resolution height of transmission of video;
3. the video transmission little reliability height of delaying time.
Description of drawings
Fig. 1 structure principle chart of the present utility model
Fig. 2 WHDI baseband processing module interface schematic diagram
Fig. 3 WHDI radio frequency processing module interface schematic diagram
The number in the figure explanation:
11 video format conversion modules, the 12WHDI baseband processing module, the 13MCU system control module, 14WHDI radio frequency processing module, 15 power amplifiers, 16 reception antennas, the 17DFS module, 19 outside receiving equipments, 121WHDI baseband processing module first output, 122WHDI baseband processing module first input end, 123WHDI baseband processing module second input, 124WHDI baseband processing module the 3rd input, 125WHDI baseband processing module second output, 126WHDI baseband processing module the 3rd input/output terminal, 127WHDI baseband processing module the 4th output, 128WHDI baseband processing module four-input terminal, 129WHDI baseband processing module the 5th output, 141WHDI radio frequency processing module first input end, 142WHDI radio frequency processing module first output, 143WHDI radio frequency processing module second output, 144WHDI radio frequency processing module second input, 145WHDI radio frequency processing module the 3rd input, 146WHDI radio frequency processing module the 3rd output
Embodiment
The utility model detailed structure, application principle, effect and effect with reference to accompanying drawing 1-3, are illustrated by following execution mode.
Consult shown in Fig. 1-3, WirelessHD Video transmission system receiver of the present utility model, the output of reception antenna 16 and power amplifier 15 is connected WHDI radio frequency processing module first input end 141, and the input of power amplifier 15 is connected with an antenna; WHDI radio frequency processing module second output 143 connects WHDI baseband processing module first input end 122, WHDI baseband processing module the 4th output 127 connects an input of video format conversion module 11, and the output of video format conversion module 11 connects the input of outside receiving equipment 19; WHDI radio frequency processing module the 3rd output 146 connects WHDI baseband processing module four-input terminal 128; WHDI radio frequency processing module first output 142 connects the input of power amplifier 15; WHDI radio frequency processing module the 3rd input 145 connects WHDI baseband processing module the 5th output 129; WHDI radio frequency processing module second input 144 connects WHDI baseband processing module first output 121; WHDI baseband processing module second input 123 connects another output of power amplifier 15; WHDI baseband processing module the 3rd input 124 connects the output of DFS module 17; WHDI baseband processing module second output 125 connects an input of DFS module 17, and another input of DFS module 17 is connected with an antenna; WHDI baseband processing module the 3rd input/output terminal 126 connects the input/output terminal of MCU system control module 13; The output of MCU system control module 13 connects another input of video format conversion module 11.
Video format conversion module 11 is the HDMI transmitting chip; WHDI baseband processing module 12 is AMN2220, and WHDI radio frequency processing module 14 is AMN3210; The input/output terminal of MCU system control module 13 and WHDI baseband processing module 12 is the SPI interface; WHDI radio frequency processing module the 3rd input 145 is connected by the SPI interface with WHDI baseband processing module the 5th output 129; Power amplifier 15 is AWL6951R.
WHDI is the wireless family digital interface, and the wireless digital interface mode for ripe at present can realize the wireless connections of high definition display device by this kind interface.
Below the utility model is described in further detail by specific embodiment.
The utility model is made up of antenna, WHDI radio frequency processing module 14, WHDI baseband processing module 12, video format conversion module 11, DFS module 17 and MCU system control module 13.
WHDI radio frequency processing module 14 (AMN3210) receives 5 tunnel radiofrequency signals and is demodulated to 5 road I/Q base band differential signals from antenna, the DFS module (is that dynamic frequency is selected module, model AL7230) simultaneously the wireless sensing signal that receives is demodulated to I/Q base band differential signal, aforementioned two groups of I/Q base band differential signals together input to WHDI baseband processing module 12 (AMN2220) and handle.
WHDI baseband processing module 12 (AMN2220) passes through the output of I2S or SPDIF and ITU.656 interface respectively to the audio-video signal that the base band signal process that receives becomes not have compression, and the control signal of handling is exported by SPI.
WHDI radio frequency processing module 14 (AMN3210) output RSSI signal when handling received signal is given WHDI baseband processing module 12 (AMN2220), and the latter exports the receiving gain of control signal control WHDI radio frequency processing module 14 (AMN3210).
WHDI baseband processing module 12 (AMN2220) carries out system reset by the control command of SPI serial ports reception MCU system control module 13 when receiving reset signal; When receiving control command, except that inside modules being controlled according to control command, also send corresponding instruction and realize control to DFS module 17 (AL7230) and WHDI radio frequency processing module 14 (AMN3210), also output is gone I/Q base band differential signal on the way to WHDI radio frequency processing module 14 (AMN3210) in addition, export to power amplifier 15 (AWL6591R) after the latter modulates, the transmitting power detection signal of power amplifier 15 is then exported to WHDI baseband processing module 12 (AMN2220).
WHDI baseband processing module 12 (AMN2220) is temporarily stored in the data that receive on the DDR2 chip and according to algorithm the partial data of losing is carried out data and recover, and exports behind a frame capacity again.
And MCU system control module 13 is controlled WHDI baseband processing module 12 (AMN2220) by SPI realization bidirectional data transfers, exports corresponding data simultaneously.SPI port by WHDI baseband processing module 12 (AMN2220) is realized the control to WHDI radio frequency processing module 14 (AMN3210).MCU system control module 13 comes control of video format conversion chip 11 by I2C in addition, with the video that reaches control output and the purpose of voice data stream format.
Realization flow of the present utility model is as follows:
The video data that receiver launches from the air interface receiver/transmitter by antenna, revert to digital signal via 14 processing of WHDI radio frequency processing module, and deliver to WHDI baseband processing module 12, thereby revert to the voice data of video data stream, I2S or the SPDIF form of ITU.656 form, handle by video format conversion at last, these data transaction are become the audio and video data streams of HDMI form.
Human-computer interactive control and system control function that MCU system control module 13 is realized system, the detection that DFS module 17 is used for the wireless signal in the 5G frequency ranges such as radar or WFIF, during available channel in DFS module 17 detects the 5G frequency range, then can handle by baseband processing chip, system promptly can use this available channel to carry out transfer of data.
Confirm by experiment, because integrated use WHDI technology, cooperate private radio high-resolution video transfer system transmitter, the utility model can be implemented in the 5G frequency range, utilize no compression high definition (1080P) video media stream of 40M bandwidth for transmission, and the video transmission time-delay is less than 1 millisecond up to the 3G bandwidth.
Therefore WirelessHD Video transmission system receiver of the present utility model has and can realize the large-capacity data transmission on the low bandwidth channel; The resolution height of transmission of video; The video transmission plurality of advantages such as little reliability height of delaying time.
Claims (6)
1. WirelessHD Video transmission system receiver, it is characterized in that: comprise antenna, WHDI radio frequency processing module (14), WHDI baseband processing module (12), video format conversion module (11), DFS module (17) and MCU system control module (13), wherein the output of reception antenna (16) and power amplifier (15) is connected WHDI radio frequency processing module first input end (141), and the input of power amplifier (15) is connected with an antenna; WHDI radio frequency processing module second output (143) connects WHDI baseband processing module first input end (122), WHDI baseband processing module the 4th output (127) connects an input of video format conversion module (11), and the output of video format conversion module (11) connects the input of outside receiving equipment (19);
WHDI radio frequency processing module the 3rd output (146) connects WHDI baseband processing module four-input terminal (128); WHDI radio frequency processing module first output (142) connects the input of power amplifier (15); WHDI radio frequency processing module the 3rd input (145) connects WHDI baseband processing module the 5th output (129); WHDI radio frequency processing module second input (144) connects WHDI baseband processing module first output (121);
WHDI baseband processing module second input (123) connects another output of power amplifier (15); WHDI baseband processing module the 3rd input (124) connects the output of DFS module (17); WHDI baseband processing module second output (125) connects an input of DFS module (17), and another input of DFS module (17) is connected with an antenna; WHDI baseband processing module the 3rd input/output terminal (126) connects the input/output terminal of MCU system control module (13); The output of MCU system control module (13) connects another input of video format conversion module (11).
2. WirelessHD Video transmission system receiver as claimed in claim 1 is characterized in that: described video format conversion module (11) is the HDMI transmitting chip.
3. WirelessHD Video transmission system receiver as claimed in claim 1 is characterized in that: described WHDI baseband processing module (12) is AMN2220, and described WHDI radio frequency processing module (14) is AMN3210.
4. WirelessHD Video transmission system receiver as claimed in claim 1 is characterized in that: the input/output terminal of described MCU system control module (13) and WHDI baseband processing module (12) is the SPI interface.
5. WirelessHD Video transmission system receiver as claimed in claim 1 is characterized in that: described WHDI radio frequency processing module the 3rd input (145) is connected by the SPI interface with WHDI baseband processing module the 5th output (129).
6. WirelessHD Video transmission system receiver as claimed in claim 1 is characterized in that: described power amplifier (15) is AWL6951R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201286107U CN201717963U (en) | 2010-03-11 | 2010-03-11 | Wireless high-definition video transmission system receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201286107U CN201717963U (en) | 2010-03-11 | 2010-03-11 | Wireless high-definition video transmission system receiver |
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| CN201717963U true CN201717963U (en) | 2011-01-19 |
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| CN2010201286107U Expired - Lifetime CN201717963U (en) | 2010-03-11 | 2010-03-11 | Wireless high-definition video transmission system receiver |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102137254A (en) * | 2011-04-11 | 2011-07-27 | 成都九洲迪飞科技有限责任公司 | Wireless high-definition video transmission module |
| CN102143344A (en) * | 2011-04-11 | 2011-08-03 | 成都九洲迪飞科技有限责任公司 | Multi-interface board of wireless high-definition video transmission machine |
| CN102143363A (en) * | 2011-04-11 | 2011-08-03 | 成都九洲迪飞科技有限责任公司 | Wireless high-definition LVDS video transmission module |
| CN102170535A (en) * | 2011-03-07 | 2011-08-31 | 世盟科信（北京）国际科技发展有限公司 | Television signal restore and output system |
| CN103517005A (en) * | 2012-06-18 | 2014-01-15 | 北京昆腾微电子有限公司 | Integrated wireless audio and video transmission chip and transmission method thereof |
| CN105227203A (en) * | 2015-10-29 | 2016-01-06 | 天津航天中为数据***科技有限公司 | Airborne medium radio frequency data terminal and method |
| CN105933081A (en) * | 2016-03-29 | 2016-09-07 | 天津航天中为数据***科技有限公司 | Unmanned aerial vehicle data chain testing device |
-
2010
- 2010-03-11 CN CN2010201286107U patent/CN201717963U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170535A (en) * | 2011-03-07 | 2011-08-31 | 世盟科信（北京）国际科技发展有限公司 | Television signal restore and output system |
| CN102137254A (en) * | 2011-04-11 | 2011-07-27 | 成都九洲迪飞科技有限责任公司 | Wireless high-definition video transmission module |
| CN102143344A (en) * | 2011-04-11 | 2011-08-03 | 成都九洲迪飞科技有限责任公司 | Multi-interface board of wireless high-definition video transmission machine |
| CN102143363A (en) * | 2011-04-11 | 2011-08-03 | 成都九洲迪飞科技有限责任公司 | Wireless high-definition LVDS video transmission module |
| CN102143344B (en) * | 2011-04-11 | 2012-10-24 | 成都九洲迪飞科技有限责任公司 | Multi-interface board of wireless high-definition video transmission machine |
| CN103517005A (en) * | 2012-06-18 | 2014-01-15 | 北京昆腾微电子有限公司 | Integrated wireless audio and video transmission chip and transmission method thereof |
| CN105227203A (en) * | 2015-10-29 | 2016-01-06 | 天津航天中为数据***科技有限公司 | Airborne medium radio frequency data terminal and method |
| CN105933081A (en) * | 2016-03-29 | 2016-09-07 | 天津航天中为数据***科技有限公司 | Unmanned aerial vehicle data chain testing device |
| CN105933081B (en) * | 2016-03-29 | 2018-11-20 | 天津航天中为数据***科技有限公司 | A kind of Unmanned Aerial Vehicle Data Link test device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110119 |
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| CX01 | Expiry of patent term |