CN109151343A - A kind of wireless editing system based on live video and audio - Google Patents
A kind of wireless editing system based on live video and audio Download PDFInfo
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- CN109151343A CN109151343A CN201811041587.5A CN201811041587A CN109151343A CN 109151343 A CN109151343 A CN 109151343A CN 201811041587 A CN201811041587 A CN 201811041587A CN 109151343 A CN109151343 A CN 109151343A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 34
- 238000001914 filtration Methods 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000004891 communication Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000002457 bidirectional effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
The present invention provides a kind of wireless editing system based on live video and audio, including shell mechanism, press button mechanism, fixed mechanism, interface agency, module mechanism, the module mechanism includes filtering detection unit one, filtering detection unit two, down conversion module three, down conversion module four, demodulation module five, decoder module six, control system seven, call module eight and call wireless module nine, the filtering detection unit one is connected with the down conversion module three, and the down conversion module three is connected with the demodulation module five；The filtering detection unit two is connected with the down conversion module four, the down conversion module four is connected with the demodulation module five, the demodulation module five is connected with the decoder module six and the control system seven, and the control system seven is connected with the call module eight and the call module nine.The present invention will not be by other frequency interferences, and when wireless transmission is stable and easy to use.
Description
Technical Field
The invention relates to the technical field of wireless editing systems, in particular to a wireless editing system based on live video and audio.
Background
With the rapid development of scientific technology, the field of image communication technology, which is communication for transmitting and receiving image signals or so-called image information, has developed rapidly over the years. Unlike the currently widely used voice communication method, the method transmits not only voice but also visible information such as images, characters, and diagrams, and the visible information is converted into an electric signal by a video communication apparatus and transmitted, and then the electric signal is reproduced on the receiving side. The image communication may be said to be communication using visual information, or it may be referred to as communication of visual information. The device commonly used for implementing the image communication technology is an image receiver, and is widely applied in various fields at present.
However, when the traditional wireless editing system based on the live video and audio is used, the detection process of the radio signal is often interfered by other nearby frequencies, and the stability of wireless transmission cannot be ensured; the traditional wireless editing system based on the live video and audio has low integration level of graph transmission and conversation and is inconvenient to use.
Therefore, there is a need to provide a new wireless editing system based on live video and audio to solve the above technical problems.
Disclosure of Invention
The invention solves the technical problem of providing a wireless editing system based on-site video and audio, which can ensure that the wireless editing system is not interfered by other frequencies in the using process, ensures that the wireless transmission is very stable and is convenient to use.
In order to solve the technical problem, the wireless editing system based on the on-site video and audio comprises a shell mechanism, a hard shell, a key mechanism, a fixing mechanism, an interface mechanism and a module mechanism, wherein the key mechanism is arranged on one long side surface of the hard shell; the fixing mechanism is arranged on the side face of the short side of the hard shell; the interface mechanism is arranged on the other long side surface of the hard shell opposite to the side surface provided with the key mechanism; the module mechanism is arranged inside the shell mechanism and comprises a first filtering and wave detecting unit, a second filtering and wave detecting unit, a third down-conversion module, a fourth down-conversion module, a fifth demodulation module, a sixth decoding module, a seventh FPGA control unit, an eighth conversation module and a ninth conversation wireless module, the first filtering and wave detecting unit and the second filtering and wave detecting unit are arranged inside the shell mechanism, the third filtering and wave detecting unit is connected with the third down-conversion module, and the third down-conversion module is connected with the fifth demodulation module; the second filtering detection unit is connected with a fourth down-conversion module, the fourth down-conversion module is connected with a fifth demodulation module, the fifth demodulation module is connected with a sixth decoding module and a seventh FPGA control unit, the sixth decoding module is also connected with a seventh FPGA control unit, and the seventh FPGA control unit is connected with an eighth call module and a ninth call module.
Preferably, the shell mechanism further comprises a display screen, and the display screen is mounted on the long side face of the hard shell on which the key mechanism is mounted.
Preferably, the key mechanism comprises a switch key and a control key, the switch key is installed on one side of the display screen on the hard shell, and the control key is installed on the other side of the display screen, opposite to the switch key, on the hard shell.
Preferably, the fixing mechanism comprises a hanging lug, a support and a support hole, two short side faces of the hard shell are close to and installed with one end of the key mechanism, the support is installed at one end of the key mechanism, the support is provided with two support holes, the two support holes are formed in one side of the support, and the hanging lug is installed at one side of the support.
Preferably, interface mechanism includes antenna interface, first video output interface, second video output interface and audio output interface, with the installation on the stereoplasm shell be equipped with on another long side face that button mechanism is relative antenna interface, antenna interface is in one side on the stereoplasm shell is equipped with first video output interface, first video output interface is in opposite side on the stereoplasm shell is equipped with second video output interface, second video output interface is in opposite side on the stereoplasm shell is equipped with audio output interface.
Preferably, the number of the antenna interfaces is two on the hard shell, the number of the first video output interfaces is four on the hard shell, and the number of the audio output interfaces is two on the hard shell.
Preferably, the control key is provided in plurality on the hard shell.
Preferably, the demodulation module five is bidirectionally connected with the FPGA control unit seven, the FPGA control unit seven is bidirectionally connected with the communication module eight, and the FPGA control unit seven is bidirectionally connected with the communication module nine.
Compared with the related art, the wireless editing system based on the live video and audio has the following beneficial effects:
the invention provides a wireless editing system based on-site video and audio, wherein a module mechanism is arranged inside a shell mechanism, a first filtering and detecting unit and a second filtering and detecting unit are arranged inside the shell mechanism, the first filtering and detecting unit is connected with a third down-conversion module, and the third down-conversion module is connected with a fifth demodulation module; the second filtering detection unit is connected with a fourth down-conversion module, the fourth down-conversion module is connected with a fifth demodulation module, the fifth demodulation module is connected with a sixth decoding module and a seventh FPGA control unit, the sixth decoding module is also connected with a seventh FPGA control unit, and the seventh FPGA control unit is connected with an eighth call module and a ninth call module. The first filtering detection unit and the second filtering detection unit both adopt a narrow-band filtering detection mode to detect the radio signals, and due to the fact that the mode has certain requirements on out-of-band suppression and rectangular coefficients, the useful radio signals can be ensured to be detected normally, so that the situation of interference by other nearby frequencies is effectively avoided, and the stability of wireless transmission is ensured; through highly integrating the picture transmission part and the call part, the equipment cost is saved for a user, and the use is more convenient.
Drawings
FIG. 1 is a schematic diagram of a wireless editing system based on live video and audio according to a preferred embodiment of the present invention;
FIG. 2 is a back schematic view of FIG. 1;
fig. 3 is a schematic view of the module mechanism of the present invention.
Reference numbers in the figures: 1. the device comprises a fixing mechanism, 11, a hanging lug, 12, a support, 13, a support hole, 2, a shell mechanism, 21, a hard shell, 22, a display screen, 3, a key mechanism, 31, a switch key, 32, a control key, 4, an interface mechanism, 41, an antenna interface, 42, a first video output interface, 43, a second video output interface, 44, an audio output interface, 5, a module mechanism, 51, a first filtering detection unit, a second filtering detection unit, 53, a third down-conversion module, 54, a fourth down-conversion module, 55, a fifth demodulation module, 56, a sixth decoding module, 57, a seventh FPGA control unit, 58, an eighth conversation module, 59 and a ninth conversation wireless module.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
Referring to fig. 1, fig. 2 and fig. 3, the wireless editing system based on live video and audio includes a housing mechanism 2, a hard housing 21, a key mechanism 3, a fixing mechanism 1, an interface mechanism 4 and a module mechanism 5, wherein the key mechanism 3 is installed on one long side of the hard housing 21; the fixing mechanism 1 is arranged on the short side surface of the hard shell 21; the interface mechanism 4 is arranged on the other long side surface of the hard shell 21 opposite to the side surface on which the key mechanism 3 is arranged; the module mechanism 5 is arranged inside the shell mechanism 2, the module mechanism 5 comprises a first filtering and wave detecting unit 51, a second filtering and wave detecting unit 52, a third down-conversion module 53, a fourth down-conversion module 54, a fifth demodulation module 55, a sixth decoding module 56, a seventh FPGA control unit 57, an eighth conversation module 58 and a ninth conversation wireless module 59, the first filtering and wave detecting unit 51 and the second filtering and wave detecting unit 52 are arranged inside the shell mechanism 2, the first filtering and wave detecting unit 51 is connected with the third down-conversion module 53, and the third down-conversion module 53 is connected with the fifth demodulation module 55; the second filtering and wave detecting unit 52 is connected with a fourth down-conversion module 54, the fourth down-conversion module 54 is connected with a fifth demodulation module 55, the fifth demodulation module 55 is connected with a sixth decoding module 6 and a seventh FPGA control unit 57, the sixth decoding module 56 is also connected with the seventh FPGA control unit 57, and the seventh FPGA control unit 57 is connected with an eighth call module 58 and a ninth call module 59.
Shell mechanism 2 still includes display screen 22, display screen 22 is installed hard shell 21 is installed on the long limit side of button mechanism 3, in order to make display screen 22 with button mechanism 3 installs same side of hard shell 21 for it is more convenient to control the button during the use.
The key mechanism 3 comprises a switch key 31 and a control key 32, the switch key 31 is installed on one side of the display screen 22 on the hard shell 21, the control key 32 is installed on the other side of the display screen 22 opposite to the switch key 31 on the hard shell 21, and the switch key 31 and the control key 32 can be distinguished from each other, so that the use of a user is more convenient.
Fixed establishment 1 includes hangers 11, support 12 and support hole 13, be close to on two short limit sides of stereoplasm shell 21 and install button mechanism 3's one end is all installed support 12, be equipped with two on support 12 support hole 13, two support hole 13 is in install one side on the support 12 hangers 11, in order can pass through when using support 12 with hangers 11 are with equipment fixed mounting in the frame that matches for it is more convenient to use.
Interface mechanism 4 includes antenna interface 41, first video output interface 42, second video output interface 43 and audio output interface 44, with the installation on the stereoplasm shell 21 be equipped with on the relative another long lateral surface of button mechanism 3 antenna interface 41, antenna interface 41 is in one side on the stereoplasm shell 21 is equipped with first video output interface 42, first video output interface 42 is in opposite side on the stereoplasm shell 21 is equipped with second video output interface 43, second video output interface 43 is in opposite side on the stereoplasm shell 21 is equipped with audio output interface 44, for possess the interface of corresponding joint when wireless editing system based on scene video and audio meets with external equipment, make the function of wireless editing system based on scene video and audio can realize.
The number of the antenna interfaces 41 is two on the hard case 21, the number of the first video output interfaces 42 is four on the hard case 21, and the number of the audio output interfaces 44 is two on the hard case 21, so that the audio output interfaces can be connected with a plurality of connectors when in use, and various requirements of users can be met.
The control keys 32 are commonly arranged on the hard shell 21, so that different types of control operation can be performed on the equipment in use, and the use is more convenient.
The demodulation module five 55 is in bidirectional connection with the FPGA control unit seven 57, the FPGA control unit seven 57 is in bidirectional connection with the call module eight 58, and the FPGA control unit seven 57 is in bidirectional connection with the call module nine 59, so that the FPGA control unit seven 57 can receive information sent by all other modules and give corresponding feedback processing, and the FPGA control unit seven 57 can manage and control all the modules and monitor the state of the modules in real time.
The working principle of the wireless editing system based on the live video and audio provided by the invention is as follows:
firstly, fixedly mounting the wireless editing system based on the on-site video and audio on a matched rack through the hangers on the support to finish the mounting step of the equipment; then, the antenna interface 41, the first video output interface 42, the second output interface 43 and the audio output interface 44 are all connected with the matched external device connector in a clamping manner, then the switch key 31 is turned on, and then the corresponding control key 32 is turned on to start the device to work; when the wireless editing system based on the live video and audio starts to work, firstly, a radio signal is detected through the first filtering detection unit 51 and the second filtering detection unit 52, then, the detected weak signal is amplified and down-converted in the frequency range of 47M-860MHz through the third down-conversion module 53 and the fourth down-conversion module 54, a high-precision local oscillator and a low-noise amplifier are adopted in the down-conversion process to ensure that the introduced noise coefficient is reduced to the minimum in the conversion process, and then, the converted intermediate frequency signal is output to the fifth demodulation module 55 and the sixth decoding module 56 for demodulation processing; the fifth demodulation module 55 is responsible for performing FFT on the converted intermediate frequency signal, converting a frequency domain signal into a time domain signal for processing by a post-stage module, the sixth decoding module 56 is responsible for performing H264 decompression on the converted time domain signal, and an integrated circuit supporting ultra-low delay decoding is adopted in the module, so that the original video can be restored with minimum loss, meanwhile, the end-to-end delay real-time performance is ensured, and perfect receiving of an image signal is realized; the FGPA control unit seven 57 is in bidirectional connection with the demodulation module five 55, the decoding module six 56, the call module eight 58 and the call wireless module nine 59, so that the FGPA control unit seven is responsible for managing and controlling each module, monitoring the state of the module in real time and carrying out corresponding processing in time if a problem exists; and finally, the eight call module 58 processes call audio, converts digital audio into analog audio which can be heard by people and is transmitted to an earphone, converts voice of speaking of people into digital voice and transmits the digital voice to the subordinate module, and the nine call wireless module 59 receives and transmits data of far-end call audio, thereby finally completing the work flow of the whole wireless editing system based on the live video and the audio.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A wireless editing system based on-site video and audio is characterized by comprising a shell mechanism (2), a hard shell (21), a key mechanism (3), a fixing mechanism (1), an interface mechanism (4) and a module mechanism (5), wherein the key mechanism (3) is arranged on one long side surface of the hard shell (21); the fixing mechanism (1) is arranged on the short side surface of the hard shell (21); the interface mechanism (4) is arranged on the other long side surface of the hard shell (21) opposite to the hard shell provided with the key mechanism (3); the module mechanism (5) is arranged inside the shell mechanism (2); wherein,
the module mechanism (5) comprises a first filtering and wave detecting unit (51), a second filtering and wave detecting unit (52), a third down-conversion module (53), a fourth down-conversion module (54), a fifth demodulation module (55), a sixth decoding module (56), a seventh FPGA control unit (57), an eighth conversation module (58) and a ninth conversation wireless module (59), the first filtering and wave detecting unit (51) and the second filtering and wave detecting unit (52) are arranged in the shell mechanism (2), the first filtering and wave detecting unit (51) is connected with the third down-conversion module (53), and the third down-conversion module (53) is connected with the fifth demodulation module (55); the filtering detection unit II (52) is connected with the down-conversion module IV (54), the down-conversion module IV (54) is connected with the demodulation module V (55), the demodulation module V (55) is connected with the decoding module VI (6) and the FPGA control unit VII (57), the decoding module VI (56) is also connected with the FPGA control unit VII (57), and the FPGA control unit VII (57) is connected with the call module VIII (58) and the call module IX (59).
2. A live video and audio based wireless editing system according to claim 1, wherein said housing means (2) further comprises a display screen (22), said display screen (22) being mounted on the long side of said hard housing (21) where said key means (3) is mounted.
3. The wireless editing system based on live video and audio according to claim 1, wherein the key mechanism (3) comprises a switch key (31) and a control key (32), the switch key (31) is installed on one side of the display screen (22) on the hard shell (21), and the control key (32) is installed on the other side of the display screen (22) opposite to the switch key (31) on the hard shell (21).
4. The wireless editing system based on live video and audio according to claim 1, wherein the fixing mechanism (1) comprises a hanging lug (11), a support (12) and support holes (13), the support (12) is installed at one end of the hard shell (21) close to the end where the key mechanism (3) is installed on two short side surfaces, the support (12) is provided with two support holes (13), and the hanging lug (11) is installed at one side of the two support holes (13) on the support (12).
5. The wireless editing system based on live video and audio according to claim 1, the interface mechanism (4) comprises an antenna interface (41), a first video output interface (42), a second video output interface (43) and an audio output interface (44), the other long side surface of the hard shell (21) opposite to the installation of the key mechanism (3) is provided with the antenna interface (41), the antenna interface (41) is provided with the first video output interface (42) at one side of the hard shell (21), the other side of the first video output interface (42) on the hard shell (21) is provided with the second video output interface (43), the audio output interface (44) is arranged on the other side of the second video output interface (43) on the hard shell (21).
6. The wireless editing system based on live video and audio according to claim 1, wherein the antenna interfaces (41) are provided in total two on the hard case (21), the first video output interfaces (42) are provided in total four on the hard case (21), and the audio output interfaces (44) are provided in total two on the hard case (21).
7. A live video and audio based wireless editing system according to claim 1, wherein said control keys (32) are provided in plurality on said hard cover (21).
8. The wireless editing system based on live video and audio according to claim 1, wherein the demodulation module five (55) is bidirectionally connected with the FPGA control unit seven (57), the FPGA control unit seven (57) is bidirectionally connected with the call module eight (58), and the FPGA control unit seven (57) is bidirectionally connected with the call module nine (59).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041587.5A CN109151343A (en) | 2018-09-07 | 2018-09-07 | A kind of wireless editing system based on live video and audio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041587.5A CN109151343A (en) | 2018-09-07 | 2018-09-07 | A kind of wireless editing system based on live video and audio |
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| Publication Number | Publication Date |
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| CN109151343A true CN109151343A (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811041587.5A Pending CN109151343A (en) | 2018-09-07 | 2018-09-07 | A kind of wireless editing system based on live video and audio |
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| CN203608303U (en) * | 2013-11-25 | 2014-05-21 | 成都时代星光科技有限公司 | Unmanned plane ultralow time-delay digital high-definition image emission module |
| US20160124071A1 (en) * | 2014-10-30 | 2016-05-05 | Bastille Networks, Inc. | Diverse Radio Frequency Signature, Video, and Image Sensing for Detection and Localization |
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| CN106851389A (en) * | 2017-02-24 | 2017-06-13 | 深圳市安拓浦科技有限公司 | The equipment that a kind of use WIFI transmits TV signals |
| CN206472245U (en) * | 2017-02-04 | 2017-09-05 | 厦门锐澳科技有限公司 | A kind of terminal for possessing FM, Bluetooth transmission and DTMB receive capabilities |
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2018
- 2018-09-07 CN CN201811041587.5A patent/CN109151343A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203608303U (en) * | 2013-11-25 | 2014-05-21 | 成都时代星光科技有限公司 | Unmanned plane ultralow time-delay digital high-definition image emission module |
| US20160124071A1 (en) * | 2014-10-30 | 2016-05-05 | Bastille Networks, Inc. | Diverse Radio Frequency Signature, Video, and Image Sensing for Detection and Localization |
| CN205987064U (en) * | 2016-08-30 | 2017-02-22 | 郑州三和视讯技术股份有限公司 | Wireless editing system of live video audio frequency |
| CN206472245U (en) * | 2017-02-04 | 2017-09-05 | 厦门锐澳科技有限公司 | A kind of terminal for possessing FM, Bluetooth transmission and DTMB receive capabilities |
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Application publication date: 20190104 |
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