CN202364324U - High-definition wireless mobile digital image transmission device - Google Patents
High-definition wireless mobile digital image transmission device Download PDFInfo
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- CN202364324U CN202364324U CN 201120505717 CN201120505717U CN202364324U CN 202364324 U CN202364324 U CN 202364324U CN 201120505717 CN201120505717 CN 201120505717 CN 201120505717 U CN201120505717 U CN 201120505717U CN 202364324 U CN202364324 U CN 202364324U
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Abstract
The utility model relates to an image transmission device, in particular to a high-definition wireless mobile digital image transmission device, comprising an transmitting terminal and a receiving terminal, wherein the transmitting terminal comprises an encoding plate, a modulating plate and a radio frequency emitting module which are in sequential communication connection, while the receiving terminal comprises an antenna, a radio frequency receiving and demodulating module, and a video decoding module which are in sequential communication connection; the encoding plate is provided with video input and output ports, the video signal is used as the input of the encoding plate to be compressed and encoded to form MPEG2-TS stream data which enters into the modulating plate for modulation, and the modulated signal is transmitted to the receiving terminal by the radio frequency emitting module; the video decoding module has a video output port, the signal sent by the transmitting terminal is received by the antenna and then demodulated by the radio frequency receiving and demodulating module to obtain the MPEG2-TS stream data, finally the MPEG2-TS stream data is decoded by the video decoding plate and then output from the video output port. The utility model remarkably improves the resolution and quality of the image, reduces resources occupying the radio frequency band width, and increases the availability of the spectrum.
Description
Technical field
The utility model relates to a kind of image transmission, the wireless mobile digital image transmission of a kind of specifically high definition.
Background technology
Fields such as present domestic emergency command communication system, mobile video monitor, broadcasting and TV system, fight of army training are the SD wireless image transmission systems with the MPEG2 form, video resolution 720x 576 resolution.Be difficult to satisfy for the higher application of picture quality at some.Particularly under the 2M bandwidth mode, video resolution can only be accomplished CIF (352x288) resolution, when needs are caught the video important information, is difficult to satisfy actual requirement.
The utility model content
The utility model technical problem to be solved is, overcomes the shortcoming of prior art, provides a kind of high definition wireless mobile digital image transmission, and image resolution ratio and quality improve greatly, reduces the resource that takies radio frequency bandwidth, improves the availability of frequency spectrum.
The technical scheme that the utility model solves above technical problem is:
High definition is wireless mobile digital image transmission comprises transmitting terminal and receiving terminal, and transmitting terminal comprises encoding board, modulation panel and the radiofrequency emitting module that communication successively connects; Receiving terminal comprises antenna, radio frequency reception and demodulation module and the video decode module that communication successively connects; Encoding board has video input interface and video output interface, and vision signal is carried out compressed encoding as the input of encoding board, and the coding back forms MPEG2-TS flow data entering modulation panel and modulates, and the signal after the modulation is emitted to receiving terminal through radiofrequency emitting module; The video decode module has video output interface, and antenna receives the signal that transmitting terminal sends, and receives and the demodulation module demodulation through radio frequency, solves the MPEG2-TS flow data, and the MPEG2-TS flow data is exported through video output interface through the decoding of video decode plate.
The technical scheme that the utility model further limits is:
Before the wireless mobile digital image transmission of described high definition, the video input interface of encoding board comprises HDMI interface, HD-SDI interface and CVBS interface.
Aforesaid high definition is wireless mobile digital image transmission, the video output interface MPEG compatible 2-TS standard of encoding board.
Aforesaid high definition is wireless mobile digital image transmission, video output interface HDMI interface, HD-SDI interface and the CVBS interface of video decode module.
The beneficial effect of the utility model is: the utility model adopts the COFDM modulation scheme; Under the situation of conventional wireless image transmission radio frequency bandwidth 8M, adopt H.264 compression coding mode, the maximum 1080p of resolution; Compatible 1080i; 720p etc. are taking under the comparable bandwidths resource situation with SD, and image resolution ratio and quality improve greatly; Adopt compression ratio higher H .264 video compression standard, can be implemented under the situation of 2M radio frequency bandwidth, the picture of transmission D1 form; Be exactly and traditional SD wireless image transmission contrast; Reach under the equal video effect situation, greatly reduce the resource that takies radio frequency bandwidth, improved the availability of frequency spectrum.
Description of drawings
Fig. 1 is the connection block diagram of the utility model transmitting terminal.
Fig. 2 is the connection block diagram of the utility model receiving terminal.
Embodiment
Embodiment 1
Present embodiment provides a kind of high definition wireless mobile digital image transmission, connects as depicted in figs. 1 and 2ly, comprises transmitting terminal and receiving terminal, and transmitting terminal comprises encoding board, modulation panel and the radiofrequency emitting module that communication successively connects; Receiving terminal comprises antenna, radio frequency reception and demodulation module and the video decode module that communication successively connects; Encoding board has video input interface and video output interface, the compatible SD CVBS of the video input interface of encoding board interface, high definition HDMI interface and high definition HD-SDI interface, rich interface, the video output interface MPEG compatible 2-TS standard of encoding board.The video decode module has video output interface, video output interface HDMI interface, HD-SDI interface and the CVBS interface of video decode module.
H.264 compressed encoding is carried out in high definition interface HDMI or HD-SDI or the conduct of SD simulation CVBS the signal H.264 input of encoding board; The coding back forms MPEG2-TS flow data entering COFDM modulation panel and carries out the COFDM modulation; Baseband signal after the modulation is divided into I road and Q road, launches through radiofrequency emitting module.The signal that antenna receiver transmitter sends receives and the demodulation module demodulation through radio frequency, solves the MPEG2-TS flow data, and the MPEG2-TS flow data is chosen as HDMI interface, HD-SDI interface or the output of CVBS interface through H.264 video decode plate decoding.
The utility model can transmit the video of the highest 1080P standard under the 8M bandwidth situation, backward compatible 1080I, and 720P, 576I etc. taking under the situation of equal radio frequency bandwidth, can transmit the broadcast level HD video; Under the situation of radio frequency bandwidth 2M, can transmit D1 (720X576) image quality, and traditional SD wireless image transmission system can only pass CIF form image quality (352 x 288) under bandwidth 2M resource situation; From the angle of the availability of frequency spectrum, under the 2M pattern, just reach and the same effect of SD 8M bandwidth, improved the wireless frequency spectrum utilance greatly.
The occasion that the utility model is used at large screen projection; Because environment is better between the transmitter and receiver, sighting distance is main, and the COFDM modulation module of transmitter can be set to the QAM16 modulation scheme; Under radio frequency bandwidth 8M situation; Data bit rate can reach 12Mbps/s, can transmit high definition 1080P HD video fully, reaches large screen projection video effect preferably.
Except that the foregoing description, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (4)
1. the wireless mobile digital image transmission of high definition comprises transmitting terminal and receiving terminal, it is characterized in that: said transmitting terminal comprises encoding board, modulation panel and the radiofrequency emitting module that communication successively connects; Said receiving terminal comprises antenna, radio frequency reception and demodulation module and the video decode module that communication successively connects; Said encoding board has video input interface and video output interface; Vision signal is carried out compressed encoding as the input of encoding board; The coding back forms MPEG2-TS flow data entering modulation panel and modulates, and the signal after the modulation is emitted to receiving terminal through radiofrequency emitting module; Said video decode module has video output interface; Said antenna receives the signal that transmitting terminal sends, and receives and the demodulation module demodulation through radio frequency, solves the MPEG2-TS flow data; The MPEG2-TS flow data is through said video decode plate decoding, through said video output interface output.
2. the wireless mobile digital image transmission of high definition as claimed in claim 1 is characterized in that: the video input interface of said encoding board comprises HDMI interface, HD-SDI interface and CVBS interface.
3. the wireless mobile digital image transmission of high definition as claimed in claim 1 is characterized in that: the video output interface MPEG compatible 2-TS standard of said encoding board.
4. the wireless mobile digital image transmission of high definition as claimed in claim 1 is characterized in that: video output interface HDMI interface, HD-SDI interface and the CVBS interface of said video decode module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120505717 CN202364324U (en) | 2011-12-07 | 2011-12-07 | High-definition wireless mobile digital image transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120505717 CN202364324U (en) | 2011-12-07 | 2011-12-07 | High-definition wireless mobile digital image transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202364324U true CN202364324U (en) | 2012-08-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120505717 Expired - Fee Related CN202364324U (en) | 2011-12-07 | 2011-12-07 | High-definition wireless mobile digital image transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202364324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107547810A (en) * | 2017-09-26 | 2018-01-05 | 东莞市博成硅胶制品有限公司 | A kind of signal conversion transmitter and its application |
-
2011
- 2011-12-07 CN CN 201120505717 patent/CN202364324U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107547810A (en) * | 2017-09-26 | 2018-01-05 | 东莞市博成硅胶制品有限公司 | A kind of signal conversion transmitter and its application |
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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: 20120801 Termination date: 20121207 |