CN208424639U - A kind of wireless audio-video transmission equipment - Google Patents
A kind of wireless audio-video transmission equipment Download PDFInfo
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- CN208424639U CN208424639U CN201820664601.6U CN201820664601U CN208424639U CN 208424639 U CN208424639 U CN 208424639U CN 201820664601 U CN201820664601 U CN 201820664601U CN 208424639 U CN208424639 U CN 208424639U
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Abstract
The utility model relates to a kind of wireless audio-video transmission equipment, including audio/video transmitter and audio/video receiver；The audio/video transmitter includes the first controller, the first audio video processor being electrically connected with the first controller, the first Data Input Interface being electrically connected with the first audio video processor, and the first data output interface being electrically connected with the first audio video processor；First audio video processor includes the first data transmission device being electrically connected with the first controller；The audio/video receiver includes second controller, the second audio video processor being electrically connected with second controller, and the second data output interface being electrically connected with the second audio video processor；Second audio video processor includes the second data link being electrically connected with second controller；The first data transmission device and the transmitting-receiving of the second data link data double-way.This device structure is simple, and user is more flexible to its operation.
Description
Technical field
The utility model relates to a kind of users to belong to communication apparatus skill with the wireless audio-video transmission equipment of ease of Use
Art field.
Background technique
With the development of multimedia technology, requirement of the people to the technical parameter of audio-video is increasingly stringenter, and user is man-machine
Interactive experience sense is more and more clear.Radio video-audio transceiving system on the market is based primarily upon WIFI, 4G and WHDI etc. at present
Agreement, this current several money have certain shortcoming for user experience:
Radio video-audio transceiving system based on WIFI has the drawback that
1, it needs to carry out high compression to the film source before the transmission of audio-video film source, generates audio, video data packet, take a long time；
2, it only supports to carry out data transmission by WIFI local area network, is limited to current complicated WIFI environment, transmission is unstable
It is fixed；
3, receiving end needs to unzip it process again after receiving audio, video data packet, takes a long time；
4, a large amount of data can be lost after audio-video film source is compressed and decompressed will lead to audio-video distortion, seriously
Reduce video quality.
Radio video-audio transceiving system based on 4G has the drawback that
1, the base station construction of 4G operator needs to put into a large amount of capital, can not individuation；
2, it is limited to the installation and usage mode of the base station 4G, 4G signal fluctuation is larger, and transmission bandwidth is unstable；
3, the higher cost that receiving end needs is delayed higher.
Existing WHDI wireless audio-video transmission equipment on the market has the drawback that
1, can only be by transmitting terminal to receiving end one-way communication, when user's use, can not carry out double-direction control, inconvenient；
2, there is no user interface, it is poor to the experience sense of user；
3, swinging of signal timing, receiving end, which will appear, loses code, and image has mosaic, and sound has staccato and distortion.
Utility model content
In order to make up the defect of the above-mentioned prior art, the purpose of the utility model is to provide a kind of flexible nothings of user's operation
Line audio video transmission equipment.
To achieve the above purpose, the technical solution of the present invention is:
A kind of wireless audio-video transmission equipment, including audio/video transmitter and audio/video receiver；The audio-video transmitting
Device includes the first controller, the first audio video processor being electrically connected with the first controller, with the first audio video processor electricity
Property connection the first Data Input Interface, and with the first audio video processor be electrically connected the first data output interface；Institute
Stating the first audio video processor includes the first data transmission device being electrically connected with the first controller；The audio/video receiver packet
Second controller is included, the second audio video processor being electrically connected with second controller, and it is electric with the second audio video processor
Property connection the second data output interface；Second audio video processor includes the second number being electrically connected with second controller
According to transmitter；The first data transmission device and the transmitting-receiving of the second data link data double-way.
The wireless audio-video transmission equipment of above structure, audio/video transmitter and audio/video receiver pass through the first data
Transmitter and the second data link, realize the bidirectional transmit-receive of data between the two, and user can be incited somebody to action by audio/video transmitter
Data are transferred to audio/video receiver, otherwise can also be to greatly facilitate the operation of user.
Further, in order to simply and easily realize first data transmission device data transmitting-receiving, it is described first number
It include the first baseband chip being electrically connected with the first controller according to transmitter, first be electrically connected with the first baseband chip is penetrated
Frequency chip, the first receiving antenna being electrically connected with the first radio frequency chip, the power amplification being electrically connected with the first radio frequency chip
Chip, and the first transmitting antenna being electrically connected with power amplifier chip.
Further, in order to simply and easily realize the second data link data transmitting-receiving, it is described second number
It include the second baseband chip being electrically connected with second controller according to transmitter, second be electrically connected with the second baseband chip is penetrated
Frequency chip, the second receiving antenna being electrically connected with the second radio frequency chip, and second with the electric connection of the second radio frequency chip
Transmitting antenna；First transmitting antenna is connect with the second receiving antenna；First receiving antenna and the second transmitting antenna connect
It connects.
Further, in order to realize that the data of the multiple format of audio/video transmitter are transmitted, first data are defeated
Incoming interface includes HDMI input interface, SDI input interface, analog audio input interface and digital audio input interface；Described
One data output interface includes the first SDI output interface；First audio video processor further includes and HDMI input interface is electric
Property connection the first HDMI converter, the first SDI converter being electrically connected with SDI input interface and the first SDI output interface,
And the first digital analog converter being electrically connected with analog audio input interface.
Further, the ON/OFF of the first audio video processor is controlled for convenience, and first audio video processor is also wrapped
Include first data transmission switch.
Further, the operation in order to facilitate user to audio/video transmitter, the audio/video transmitter further include and the
The first user's operation terminal that one controller is electrically connected.
Further, first transmitting antenna and the second receiving antenna are based on WHDI and transmit data；Described first receives
Antenna and the second transmitting antenna are based on WHDI and transmit data.
Further, in order to realize that the data of the multiple format of audio/video receiver are transmitted, second data are defeated
Outgoing interface includes HDMI output interface, the 2nd SDI output interface, analogue audio frequency output interface and digital audio output interface；Institute
Stating the second audio video processor further includes the second HDMI converter being electrically connected with HDMI output interface, is exported with the 2nd SDI
The 2nd SDI converter that interface is electrically connected, and the second digital analog converter being electrically connected with analogue audio frequency output interface.
Further, when swinging of signal timing, in order to avoid audio/video receiver occurs losing code, image has mosaic, sound
Sound has the case where staccato and distortion, and second audio video processor further includes audio and video buffer device.
Further, the operation in order to facilitate user to audio/video receiver, the audio/video receiver further include and the
The second user operating terminal of two controllers connection.
Further, in order to detect the electromagnetic environment of current environment, so that a most clean channel be selected to carry out radio frequency
Data interaction, makes the available optimal experience of user, and second data link further includes and the second baseband chip electrical property
The detection chip of connection.
The utility model is further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is the structural schematic block diagram of audio/video transmitter in a kind of wireless audio-video transmission equipment of the utility model；
Fig. 2 is the structural schematic block diagram of audio/video receiver in a kind of wireless audio-video transmission equipment of the utility model；
Fig. 3 is a kind of structural schematic block diagram of wireless audio-video transmission equipment end first data transmission device of the utility model；
Fig. 4 is a kind of structural schematic block diagram of whole second data link of wireless audio-video transmission equipment of the utility model.
Specific embodiment
In order to more fully understand the technology contents of the utility model, combined with specific embodiments below to the skill of the utility model
Art scheme is further described and illustrates, but not limited to this.
Embodiment 1
In conjunction with shown in FIG. 1 to FIG. 4, a kind of wireless audio-video transmission equipment, including audio/video transmitter S1 and audio-video are connect
Receive device S2.
Audio/video transmitter S1 includes the first controller 10, is handled with the first audio-video that the first controller 10 is electrically connected
Device 20, the first Data Input Interface 30 being electrically connected with the first audio video processor 20, with 20 electricity of the first audio video processor
Property connection the first data output interface 40, for the first power supply 50 of power supply, and with the first controller 10 be electrically connected
First user's operation terminal 60.
Specifically, the first audio video processor 20 includes the first data transmission device being electrically connected with the first controller 10
21 and first data transmission switch 22.
Specifically, first data transmission device 21 includes the first baseband chip 211 being electrically connected with the first controller 10, with
The first radio frequency chip 212 that first baseband chip 211 is electrically connected is received with the first radio frequency chip 212 is electrically connected first
Antenna 213, the power amplifier chip 214 being electrically connected with the first radio frequency chip 212, and electrically with power amplifier chip 214
First transmitting antenna 215 of connection.
Specifically, the first Data Input Interface 30 is defeated including HDMI input interface 31, SDI input interface 32, analogue audio frequency
Incoming interface 33 and digital audio input interface 34；First data output interface 40 is the first SDI output interface.At first audio-video
Reason device 20 further includes the first HDMI converter 23 being electrically connected with HDMI input interface 31, with SDI input interface 32 and first
The first SDI converter 24 that SDI output interface is electrically connected, and the first number being electrically connected with analog audio input interface 33
Mode converter 25.
Audio/video receiver S2 includes second controller 10', at the second audio-video being electrically connected with second controller 10'
Device 20' is managed, the second data output interface 30' being electrically connected with the second audio video processor 20', the second source for power supply
40', and the second user operating terminal 50'(connecting with second controller 10' are typically provided to touching type operation interface).
Second audio video processor 20' includes the second data link 21' being electrically connected with second controller 10', and
Audio and video buffer device 22'.
Specifically, the second data link 21' includes the second baseband chip being electrically connected with second controller 10'
211', the second radio frequency chip 212' being electrically connected with the second baseband chip 211' are electrically connected with the second radio frequency chip 212'
The second receiving antenna 213', and the second transmitting antenna 214' being electrically connected with the second radio frequency chip 212', and with the
The detection chip 215' that two baseband chip 211' are electrically connected.
Specifically, the second data output interface 30' includes HDMI output interface 31', the 2nd SDI output interface 32', simulation
Audio output interface 33' and digital audio output interface 34'.Second audio video processor 20' further includes and HDMI output interface
The second HDMI converter 23' that 31' is electrically connected, the 2nd SDI converter being electrically connected with the 2nd SDI output interface 32'
24', and the second digital analog converter 25' being electrically connected with analogue audio frequency output interface 33'.
First transmitting antenna 215 and the second receiving antenna 213' are based on WHDI and transmit data；First receiving antenna 213 and
Two transmitting antenna 214' are based on WHDI and transmit data, realize that the data between audio/video transmitter S1 and audio/video receiver S2 are double
To transmitting-receiving.
In summary: this wireless audio-video transmission device structure is simple, and especially the first transmitting antenna 215 and second receives
Antenna 213' is based on WHDI and transmits data；First receiving antenna 213 and the second transmitting antenna 214' are based on WHDI and transmit data, real
Data double-way transmitting-receiving between existing audio/video transmitter S1 and audio/video receiver S2, greatly facilitates the operation of user；Separately
Outside, it by the first user's operation terminal 60 of setting and second user operating terminal 50', greatly facilitates user and audio-video is emitted
The selection and operation of device S1 and audio/video receiver S2 mode；In addition, in the audio and video buffer device of audio/video receiver S2 setting
22' is solved when swinging of signal timing, and audio/video receiver S2 occurs losing code, image has mosaic, sound has staccato and distortion
The problem of.
The specific works application of audio/video transmitter S1 is as follows:
The HDMI signal of input is changed into RGB or YCbCr parallel digital signals by the first HDMI converter 23, and the first SDI turns
The sdi signal of input is changed into RGB or YCbCr parallel digital signals by parallel operation 24, and the SDI driving function for including, Ke Yijin
The ring of row sdi signal goes out.The parallel digital signals that first HDMI converter 23 and the first SDI converter 24 are exported pass through first
Film source information needed for Digital Transmission switch 22 (such as CPLD or FPGA) switches over selection user enters first data transmission device
21.Analog voice is converted into digital speech and enters first data transmission device by I2C agreement by the first digital analog converter 25
21, digital speech SPDIF is directly entered first data transmission device 21.Parallel digital signals and audio digital signals are in the first data
The coding of WHDI is carried out in transmitter 21 and is sent by the radio frequency network of 40MHz bandwidth in 4.9 to 5.8GHz frequency range.
The specific works application of audio/video receiver S2 is as follows:
The WHDI signal received is demodulated to the parallel port image digital signal of RGB or YCbCr by the second data link 21'
With I2C audio digital signals or SPDIF audio digital signals, the audio-video signal after demodulation enters audio and video buffer device 22'.Sound
Audio-video signal is transferred to the second HDMI converter 23' and the 2nd SDI converter 24', the 2nd HDMI turn by video display buffer 22'
Parallel operation 23', which is changed into HDMI signal and exports, gives HDMI signal player device, and the 2nd SDI converter 24' is changed into sdi signal
It exports and gives sdi signal playback equipment.Digital speech I2C is conveyed to the second digital analog converter 25' by audio and video buffer device 22', the
Two digital analog converter 25' are reduced into analog voice and are exported to corresponding peripheral hardware.Audio and video buffer device 22' is by digital speech
SPDIF is exported to corresponding voice peripheral hardware.In user's use process, user is handed over by second user operating terminal 50'
Interoperability, controls the second audio video processor 20' by second controller 10', realizes the operation of user.
Data transmission principle between audio/video transmitter S1 and audio/video receiver S2 is as follows:
First baseband chip 211 (such as AMN2120) of first data transmission device 21 carries out the audio-video signal received
Lossless compression processing is modulated into analog signal and is sent to the first video chip 212 (such as MAX2850), and the first video chip 212 will
Power hair large chip 214 (such as SE5003) is transferred to after every road analog signal analog-modulated, power hair large chip 214 will receive
Analog signal send out high-power after by connection the first transmitting antenna 215 to radio frequency network send.
The second receiving antenna 213' of second data link 21' sends the analog radio-frequency signal received by LNA
After be transmitted to the second radio frequency chip 212'(such as MAX2851), the second radio frequency chip 212' is sent to after demodulating analog radio-frequency signal
Second baseband chip 211'(such as AMN2220), the second baseband chip 211' converts thereof into the parallel port picture number of RGB or YCbCr
Word signal and I2C audio digital signals or SPDIF audio digital signals are transmitted to next stage, to complete the wireless biography of audio-video
It is defeated.First data transmission device 21 and the second data link 21' respectively increase a data feedback channel both to carry out it is two-way
Data interaction can be operated preferably so that user can obtain partner state in real time.In the second data link
21' also adds detection chip 215'(such as AL7230), it can detecte the electromagnetic environment of current environment, so that selection one is most dry
Net channel carries out rf data interaction, makes the available optimal experience of user.It, can be by increasing radio frequency when practical application
The mode of switch and coupler is multiplexed the receiving antenna of data feedback channel and DFS with original antenna, to subtract
The area and antenna number of small pcb board, to reduce equipment cost.
In user's use process, user is carried out by the first user's operation terminal 60 and second user operating terminal 50'
Interactive operation controls first data transmission device 21 by the first controller 10, controls the second data by second controller 10' and passes
Defeated device 21', realizes the operation of user.User can realize operating mode setting (such as DFS mode and solid by key or touch screen
Determine frequency point mode etc.), frequency point setting, the operation such as audio-video signal switching can be in radio frequency network one end pair by data feedback channel
The other end is remotely controlled.Display screen can also show some such as signal strengths to user, machine temperature, battery capacity, dissipate
The essential informations such as hot systems switch, the working condition of current device can be understood convenient for user in real time.First power supply 50 and the second electricity
Source 40' can support the DC voltage of 7-36V, can be the power source specials such as 970 batteries, can also be adapted to by corresponding direct current
Device power supply.
The above-mentioned technology contents that the utility model is only further illustrated with embodiment, in order to which reader is easier to understand,
But the embodiments of the present invention is not represented is only limitted to this, any technology done according to the utility model extends or recreation,
By the protection of the utility model.The protection scope of the utility model is subject to claims.
Claims (10)
1. a kind of wireless audio-video transmission equipment, it is characterised in that: including audio/video transmitter and audio/video receiver；It is described
Audio/video transmitter includes the first controller, and the first audio video processor being electrically connected with the first controller is regarded with the first sound
The first Data Input Interface that frequency processor is electrically connected, and it is defeated with the first data of the first audio video processor electric connection
Outgoing interface；First audio video processor includes the first data transmission device being electrically connected with the first controller；The sound view
Frequency receiver includes second controller, the second audio video processor being electrically connected with second controller, and is regarded with the second sound
The second data output interface that frequency processor is electrically connected；Second audio video processor includes electrically connecting with second controller
The second data link connect；The first data transmission device and the transmitting-receiving of the second data link data double-way.
2. wireless audio-video transmission equipment according to claim 1, it is characterised in that: the first data transmission device includes
The first baseband chip being electrically connected with the first controller, the first radio frequency chip being electrically connected with the first baseband chip, with the
The first receiving antenna that one radio frequency chip is electrically connected, the power amplifier chip being electrically connected with the first radio frequency chip, Yi Jiyu
The first transmitting antenna that power amplifier chip is electrically connected.
3. wireless audio-video transmission equipment according to claim 2, it is characterised in that: second data link includes
The second baseband chip being electrically connected with second controller, the second radio frequency chip being electrically connected with the second baseband chip, with the
The second receiving antenna that two radio frequency chips are electrically connected, and the second transmitting antenna being electrically connected with the second radio frequency chip；Institute
The first transmitting antenna is stated to connect with the second receiving antenna；First receiving antenna is connect with the second transmitting antenna.
4. wireless audio-video transmission equipment according to claim 2 or 3, it is characterised in that: the first data input connects
Mouth includes HDMI input interface, SDI input interface, analog audio input interface and digital audio input interface；First number
It include the first SDI output interface according to output interface；First audio video processor further includes electrically connecting with HDMI input interface
The first HDMI converter connect, the first SDI converter being electrically connected with SDI input interface and the first SDI output interface, and
The first digital analog converter being electrically connected with analog audio input interface.
5. wireless audio-video transmission equipment according to claim 4, it is characterised in that: first audio video processor is also
It is switched including first data transmission.
6. wireless audio-video transmission equipment according to claim 4, it is characterised in that: the audio/video transmitter further includes
The first user's operation terminal being electrically connected with the first controller.
7. wireless audio-video transmission equipment according to claim 4, it is characterised in that: first transmitting antenna and second
Receiving antenna is based on WHDI and transmits data；First receiving antenna and the second transmitting antenna are based on WHDI and transmit data.
8. described in any item wireless audio-video transmission equipment according to claim 1~3, it is characterised in that: second data
Output interface includes HDMI output interface, the 2nd SDI output interface, analogue audio frequency output interface and digital audio output interface；
Second audio video processor further includes the second HDMI converter being electrically connected with HDMI output interface, defeated with the 2nd SDI
The 2nd SDI converter that outgoing interface is electrically connected, and the second digital analog converter being electrically connected with analogue audio frequency output interface.
9. wireless audio-video transmission equipment according to claim 8, it is characterised in that: second audio video processor is also
Including audio and video buffer device.
10. wireless audio-video transmission equipment according to claim 8, it is characterised in that: the audio/video receiver also wraps
Include the second user operating terminal connecting with second controller；Second data link further includes and the second baseband chip is electric
Property connection detection chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820664601.6U CN208424639U (en) | 2018-05-04 | 2018-05-04 | A kind of wireless audio-video transmission equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820664601.6U CN208424639U (en) | 2018-05-04 | 2018-05-04 | A kind of wireless audio-video transmission equipment |
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| CN208424639U true CN208424639U (en) | 2019-01-22 |
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| CN201820664601.6U Active CN208424639U (en) | 2018-05-04 | 2018-05-04 | A kind of wireless audio-video transmission equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153458A (en) * | 2019-06-26 | 2020-12-29 | 深圳Tcl新技术有限公司 | Audio signal transmission method, smart television, power amplifier and smart television system |
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2018
- 2018-05-04 CN CN201820664601.6U patent/CN208424639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153458A (en) * | 2019-06-26 | 2020-12-29 | 深圳Tcl新技术有限公司 | Audio signal transmission method, smart television, power amplifier and smart television system |
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