CN205883430U - Harmless high -definition audio and video transmission system based on paired line - Google Patents
Harmless high -definition audio and video transmission system based on paired line Download PDFInfo
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- CN205883430U CN205883430U CN201620626723.7U CN201620626723U CN205883430U CN 205883430 U CN205883430 U CN 205883430U CN 201620626723 U CN201620626723 U CN 201620626723U CN 205883430 U CN205883430 U CN 205883430U
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Abstract
The utility model provides a harmless high -definition audio and video transmission system based on paired line, its characterized in that divide into camera terminal and receive demodulate end two parts, the camera terminal comprises sensor board, HDMI transmitter, modulation board, connecting plate and five blocks of circuit boards of PWR electricity source plate, the receive demodulate end is a massive circuit board, and the chip, the HDMI RX that have demodulation chip, 1 commentaries on classics 2 of HDMI on the receive demodulate end circuit board receive chip, SDI chip and POE power module. The utility model discloses an original audio and video signal that harmless high -definition audio and video transmission system based on paired line can gather the camera sensor is without the compression, directly modulatedly transmits to paired line ( cat5e cable or six types of lines and more than), do not exist traditional IP camera review postpone with the problem of image loss distortion because the adoption is cat5e cable or six types of lines, the circuit cost is for HD the SDI camera system is also with greatly reduced.
Description
Technical field
This utility model relates to audio video transmission technical field, particularly relates to a kind of lossless high sore throat relieving based on twisted-pair feeder and regards
Keep pouring in communication system.
Background technology
In terms of high-definition camera, the original video data that camera sensing device collects is the hugest, and typically I
To be used for transmitting the bandwidth of these video datas the most extremely limited.Such as in monitoring field, if monitoring camera sensor is straight
Connect output 1080p@30 frame, during the original video data of YUV422 form, per second need the transmitted data amount will be more than 1920*
1080*(30*2/3) * 30=1.24Gb(actual amount of data can reach 1.485Gb in fact), say, that if directly transmitted, need
The bandwidth wanted will be more than 1G.
In order to solve this problem, the most typically there are two technique directions.
One direction is directly to be carried out by these video datas locally compressed in photographic head terminal, H.264 presses as used
Reducing the staff code, compression ratio can reach 80:1, the most again data after transmission compression.IP video camera is i.e. the representative on this technique direction
Equipment.But the most also can inevitably bring two problems: picture delay and image impairment distortion.
The original video data that camera sensing device collects then, is modulated coaxial cable enterprising by another direction
Row transmission.It represents equipment is exactly HD-SDI video camera, although this kind equipment can the lossless video data of real-time Transmission high definition,
But problem of both there is also, one is the bad solution of front end lightning protection, and two is that HD-SDI high-definition video signal requirement preferably exists
Transmit to ensure the best effects of video signal on special SDI cable, but special SDI cable includes that joint is the most expensive,
In actual items, if all using special SDI cable will increase construction cost.
In view of this, it is necessary to provide a kind of lossless high resolution audio and video based on twisted-pair feeder to transmit system, above-mentioned to solve
Problem.
Summary of the invention
The purpose of this utility model is: for the defect of prior art, and comply with new technical need, this utility model
Provide a kind of lossless high resolution audio and video based on twisted-pair feeder transmission system.
To achieve these goals, this utility model be the technical scheme is that lossless high sore throat relieving based on twisted-pair feeder
Video transmission system, it is characterised in that be divided into photographic head terminal and receive demodulating end two parts, described photographic head terminal by
Sensor plate, HDMI transmission board, modulation panel, connecting plate and five pieces of circuit board compositions of PWR power panel, wherein:
Sensor plate: use HD CMOS Sensor high definition cmos image sensor to gather video data, through ISP core
Sheet does and exports parallel video data to HDMI transmission board after picture signal processes；
HDMI transmission board: after HDMI transmission board receives the parallel video data that Sensor plate sends over, send out through HDMI
Send the HDMI TX on plate to send chip and be converted into HDMI audio-video signal；HDMI transmission board integrated digital noise reduction pickup simultaneously
Chip, is also added to the voice data collected in HDMI signal, is then forwarded to modulation panel；
Modulation panel: after modulation panel receives the HDMI signal that HDMI transmission board sends over, be modulated plate and be modulated into
It is suitable for the signal of high-speed transfer on CAT5E UTP cable or six class lines, then sends signal to connecting plate；
Connecting plate: connecting plate each external circuit interface the most integrated, surpasses including outside 12V power supply power supply interface, connection
Category-5 cable or the RJ45 interface of six class lines；The most integrated POE, by electricity module, enables photographic head terminal from receiving demodulating end POE
Power taking on supply module；
PWR power panel: be integrated with power supply circuits at different levels on PWR power panel, is responsible for powering to other four pieces of circuit boards；
Described reception demodulating end is the circuit board of a monoblock, receives and has demodulation chip, HDMI 1 on demodulating end circuit board
The chip, the HDMI RX that turn 2 receive chip, SDI chip and POE supply module；Photographic head terminal passes through CAT5E UTP cable or six classes
The audio, video data that line transmits, after receiving demodulating end board receiver, demodulated chip is reduced into a road HDMI
Signal, then by the chip of HDMI 1 turn 2, Jiang Ci mono-road HDMI signal changes into two-way HDMI signal, wherein a road HDMI letter
Number directly connecing HDMI female seat, externally output connects display screen；Another road HDMI signal then receives chip through HDMI RX, is reduced into
Parallel audio, video data, then by SDI chip, change into the output of HD-SDI signal, connect HD-SDI DVR；Receive demodulating end
Circuit board the most integrated POE supply module, is directly powered to photographic head terminal by CAT5E UTP cable or six class lines.
Lossless high resolution audio and video based on twisted-pair feeder transmission system as above, it is characterised in that described photographic head is eventually
End uses CAT5E UTP cable or six class lines, i.e. CAT5e or CAT6 transmits, and transmission range reaches 70m.
Lossless high resolution audio and video based on twisted-pair feeder transmission system as above, it is characterised in that described photographic head is eventually
End supports that video resolution 1080P@30hz, 1080p@60Hz@48 bits, 3D, 4K x 2K output uncompressed lossless zero is prolonged
HD video late.
Lossless high resolution audio and video based on twisted-pair feeder transmission system as above, it is characterised in that composition photographic head is eventually
Five pieces of circuit boards of end all use the 38mm*38mm size of industry universal.
Lossless high resolution audio and video based on twisted-pair feeder transmission system as above, it is characterised in that described reception demodulates
End power supply uses the 12V standard of industry universal to power, and the most integrated POE supply module is powered to photographic head terminal, maximum power supply
Power 13W.
Lossless high resolution audio and video based on twisted-pair feeder transmission system as above, it is characterised in that described reception demodulates
The design size of end is 100mm*120mm*35.
The beneficial effects of the utility model are: lossless high resolution audio and video based on twisted-pair feeder of the present utility model transmission system
Have the advantages that relative to prior art
(1) the original sound that camera sensing device can be collected by lossless high resolution audio and video based on twisted-pair feeder transmission system
Video signal is the most compressed, and directly modulation to twisted-pair feeder (CAT5E UTP cable or six class lines and more than) is transmitted.
(2) there is not Traditional IP camera review to postpone and the problem of image impairment distortion.
(3) owing to using CAT5E UTP cable or six class lines, line cost also will be big relative to HD-SDI camera chain
Big reduction.
This utility model patented product has the advantage that and feature:
1, network cable transmission.With network cable transmission, save HDMI expensive certification, test and wire rod cost.
2, long range propagation.Transmission range is the longest up to 70M, is far superior to the HDMI wire material length that HDMI official recognizes
8M。
3, high-definition signal transmission.The transfer rate of the highest support 8Gbps, supports current all resolution.Simultaneously can be by sound
Frequently, video, control signal and supply line are brought together.
4, real-time Transmission.Image uncompressed, transmits to rear end after direct signal modulation, almost zero-lag.
5, support that POE powers, it is not necessary to additionally lay power line, save wire rod cost further.
6, receiving demodulating end and support that HDMI and HD-SDI exports simultaneously, output image both can be supervised by monitor in real time
Control, it is possible to directly utilize existing HD-SDI DVR on market and realize image storage.
Accompanying drawing explanation
Fig. 1 is the theory diagram of this utility model lossless audio-video transmission system of high definition based on twisted-pair feeder.
Fig. 2 is photographic head terminal theory diagram.
Fig. 3 is to receive demodulating end theory diagram.
Detailed description of the invention
In order to be more fully understood that this utility model, it is further elucidated with content of the present utility model below in conjunction with embodiment, but
Content of the present utility model is not limited solely to the following examples.This utility model can be made various by those skilled in the art
Changing or amendment, these equivalent form of values are equally within the scope of claims listed by the application limit.
Take the photograph as it is shown in figure 1, based on twisted-pair feeder the lossless high resolution audio and video transmission system of this utility model embodiment is divided into
As head terminal and reception demodulating end two parts.
As in figure 2 it is shown, on hardware configuration, photographic head terminal is made up of following five pieces of circuit boards, realizes different merits respectively
Energy.
1, Sensor plate: use the HD CMOS Sensor high definition cmos image sensor of Sony to gather video data,
Do through ISP chip and export parallel video data to HDMI transmission board after picture signal processes.
2, HDMI transmission board: after HDMI transmission board receives the parallel video data that Sensor plate sends over, through HDMI
TX sends chip and is converted into HDMI audio-video signal.This HDMI transmission board is also integrated with digital noise reduction pick up chip simultaneously, can
The voice data collected is also added in HDMI signal, is then forwarded to modulation panel.
3, modulation panel: the HDMI signal that HDMI transmission board sends, after being sent to modulation panel, modulation panel is modulated into applicable
On CAT5E UTP cable or six class lines, the signal of high-speed transfer, then sends signal to connecting plate.
4, connecting plate: connecting plate each external circuit interface the most integrated, including outside 12V power supply power supply interface, connects
CAT5E UTP cable or the RJ45 interface of six class lines.The most integrated POE, by electricity module, makes photographic head terminal unit can demodulate from receiving
Power taking on end POE supply module.
5, PWR power panel: be integrated with power supply circuits at different levels on PWR power panel, is responsible for powering to other four pieces of circuit boards.
As it is shown on figure 3, receive the circuit board that demodulating end is a monoblock.There is demodulation chip, HDMI 1 turn 2 on this circuit board
Chip, HDMI RX receive chip, SDI chip, POE supply module.Photographic head terminal is transmitted by CAT5E UTP cable or six class lines
The audio, video data come over, after this board receiver, demodulation chip will be reduced into a road HDMI signal, then passes through
The chip that HDMI is 1 turn 2, Jiang Ci mono-road HDMI signal changes into two-way HDMI, and wherein a road directly connects HDMI female seat, externally exports
Connecing display screen, another road then receives chip through HDMI RX, is reduced into parallel audio, video data, then by SDI chip, changes into
HD-SDI signal exports, and connects HD-SDI DVR.Meanwhile, this circuit board is also integrated with POE supply module, can be by super
Photographic head terminal is directly powered by category-5 cable or six class lines, and powers without photographic head terminal is separately connect power supply.
Photographic head terminal: the original high definition lossless video data that imageing sensor is collected, digital noise reduction pickup circuit
The people around's acoustic sound data collected, all modulate and are transmitted on CAT5E UTP cable or six class lines, and transmission range is up to 70 meters.
And integrated POE function, it is not necessary to additionally lay power line, simplify wiring further, reduce track laying engineering cost.
Reception demodulating end: the audio, video data that photographic head terminal is transmitted by CAT5E UTP cable or six class lines, sets at this
After standby upper demodulation, being reduced into the audio, video data that high definition is lossless, the audio, video data after reduction both can be direct by HDMI
Receive monitoring in real time on monitor and check high definition lossless video image, it is possible to receive SDI DVR by HD-SDI interface
On carry out the storage of audio, video data.
In the present embodiment, the product performance index of photographic head terminal:
1, video resolution: (later stage, other versions could for output 1080P@30hz uncompressed lossless zero-lag HD video
It is upgraded to 1080p@60Hz@48 bits, 3D, 4K x 2K etc.).
2, transmission range: using CAT5E UTP cable or the transmission of six class lines (CAT5e/CAT6), transmission range is up to the 70m(later stage
Other versions such as 1080p@60Hz@48 bits of upgrading, 3D, 4K x 2K transmission range is also up to 40m).
3, pickup function: integrated digital noise reduction pickup, can gather the voice in around 10m, and reduce environmental noise, so
Transmitted together by netting twine afterwards.
4, power supply: supporting that 12V powers and POE powers, POE powers and directly uses Power-over-Ethernet, it is not necessary to still further set simultaneously
Put power line.
5, design size: whole pcb boards of composition video camera all use the 38mm*38mm size of industry universal, convenient peace
Dress.
In the present embodiment, the product performance index of reception demodulating end:
1, the mass data that Real-time demodulation photographic head terminal transmission comes.
2, supporting HDMI and HD-SDI output, HDMI output connects monitor, and HD-SDI connects SDI DVR simultaneously.
3, power supply: use the 12V standard of industry universal to power, be also capable as PSE device, supply to front end POE photographic head
Electricity, maximum output power 13W.
4, design size: 100mm*120mm*35.
The content not being described in detail in this specification belongs to prior art known to professional and technical personnel in the field.
Claims (6)
1. lossless high resolution audio and video based on twisted-pair feeder transmission system, it is characterised in that be divided into photographic head terminal and receive demodulation
End two parts, described photographic head terminal is by Sensor plate, HDMI transmission board, modulation panel, connecting plate and five blocks of electricity of PWR power panel
Road plate composition, wherein:
Sensor plate: use HD CMOS Sensor high definition cmos image sensor to gather video data, doing through ISP chip
Picture signal exports parallel video data to HDMI transmission board after processing；
HDMI transmission board: after HDMI transmission board receives the parallel video data that Sensor plate sends over, through HDMI transmission board
On HDMI TX send chip be converted into HDMI audio-video signal；HDMI transmission board integrated digital noise reduction pickup chip simultaneously,
The voice data collected is also added in HDMI signal, is then forwarded to modulation panel；
Modulation panel: after modulation panel receives the HDMI signal that HDMI transmission board sends over, is modulated plate and is modulated into applicable
On CAT5E UTP cable or six class lines, the signal of high-speed transfer, then sends signal to connecting plate；
Connecting plate: connecting plate each external circuit interface the most integrated, surpasses five classes including outside 12V power supply power supply interface, connection
Line or the RJ45 interface of six class lines；The most integrated POE, by electricity module, enables photographic head terminal to power from receiving demodulating end POE
Power taking in module；
PWR power panel: be integrated with power supply circuits at different levels on PWR power panel, is responsible for powering to other four pieces of circuit boards；
Described reception demodulating end is the circuit board of a monoblock, receives and has demodulation chip, HDMI 1 turn 2 on demodulating end circuit board
Chip, HDMI RX receive chip, SDI chip and POE supply module；Photographic head terminal is passed by CAT5E UTP cable or six class lines
The defeated audio, video data come, after receiving demodulating end board receiver, demodulated chip is reduced into a road HDMI signal,
Then by the chip of HDMI 1 turn 2, Jiang Ci mono-road HDMI signal changes into two-way HDMI signal, and wherein a road HDMI signal is direct
Connecing HDMI female seat, externally output connects display screen；Another road HDMI signal then receives chip through HDMI RX, is reduced into parallel sound
Video data, then by SDI chip, change into the output of HD-SDI signal, connect HD-SDI DVR；Receive demodulating end circuit board
The most integrated POE supply module, is directly powered to photographic head terminal by CAT5E UTP cable or six class lines.
Lossless high resolution audio and video based on twisted-pair feeder the most according to claim 1 transmission system, it is characterised in that described in take the photograph
As head terminal uses CAT5E UTP cable or six class lines, i.e. CAT5e or CAT6 transmits, and transmission range reaches 70m.
Lossless high resolution audio and video based on twisted-pair feeder the most according to claim 1 transmission system, it is characterised in that described in take the photograph
As head terminal supports video resolution 1080P@30hz, 1080p@60Hz@48 bits, 3D, 4K x 2K output uncompressed without
Damage zero-lag HD video.
Lossless high resolution audio and video based on twisted-pair feeder the most according to claim 1 transmission system, it is characterised in that composition is taken the photograph
Five pieces of circuit boards as head terminal all use the 38mm*38mm size of industry universal.
Lossless high resolution audio and video based on twisted-pair feeder the most according to claim 1 transmission system, it is characterised in that described in connect
Receipts demodulating end is powered and is used the 12V standard of industry universal to power, and the most integrated POE supply module is powered to photographic head terminal,
Big output power 13W.
Lossless high resolution audio and video based on twisted-pair feeder the most according to claim 1 transmission system, it is characterised in that described in connect
The design size receiving demodulating end is 100mm*120mm*35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620626723.7U CN205883430U (en) | 2016-06-23 | 2016-06-23 | Harmless high -definition audio and video transmission system based on paired line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620626723.7U CN205883430U (en) | 2016-06-23 | 2016-06-23 | Harmless high -definition audio and video transmission system based on paired line |
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| Publication Number | Publication Date |
|---|---|
| CN205883430U true CN205883430U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620626723.7U Expired - Fee Related CN205883430U (en) | 2016-06-23 | 2016-06-23 | Harmless high -definition audio and video transmission system based on paired line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108989729A (en) * | 2018-08-03 | 2018-12-11 | 湖南华南光电科技股份有限公司 | A kind of video and audio recording method, realization device and electronic equipment |
| CN109246478A (en) * | 2018-11-20 | 2019-01-18 | 郑州云海信息技术有限公司 | A kind of video format conversion apparatus and method |
-
2016
- 2016-06-23 CN CN201620626723.7U patent/CN205883430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108989729A (en) * | 2018-08-03 | 2018-12-11 | 湖南华南光电科技股份有限公司 | A kind of video and audio recording method, realization device and electronic equipment |
| CN109246478A (en) * | 2018-11-20 | 2019-01-18 | 郑州云海信息技术有限公司 | A kind of video format conversion apparatus and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20210623 |