CN113938652B - Wireless image transmission system - Google Patents
Wireless image transmission system Download PDFInfo
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- CN113938652B CN113938652B CN202111188737.7A CN202111188737A CN113938652B CN 113938652 B CN113938652 B CN 113938652B CN 202111188737 A CN202111188737 A CN 202111188737A CN 113938652 B CN113938652 B CN 113938652B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- 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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Abstract
The invention provides a wireless image transmission system, which comprises: a transmitting end and a receiving end; the transmitting end includes: the device comprises a camera module, a video deserializing module, a first central processing module, a first data processing module and a transmitting module; the camera shooting module transmits shot materials to the video deserializing module in SDI signals, the SDI signals comprise audio and video and metadata of the shot materials of the camera shooting module, the video deserializing module processes data in the SDI signals into video data, audio data and metadata and then transmits the video data, the audio data and the metadata to the central processing module, the central processing module processes the signals and transmits the processed signals to the first data processing module, and the first data processing module wirelessly transmits the received data to the receiving end through the transmitting module; the wireless image transmission system can record metadata of shot materials while realizing the traditional wireless image transmission function.
Description
Technical Field
The invention relates to the field of image transmission, in particular to a wireless image transmission system.
Background
In the current wireless image transmission system, only the audio and video currently shot can be basically received at a receiving end, which is enough in most use occasions such as monitoring and the like, but in some special occasions, the shooting material needs to be edited, toned, stored and post-processed online, for example, QTAKE needs information such as file name, time code, start-stop recorder, lens data and the like, which is convenient for post-searching and editing, but after being transmitted by the wireless image transmission system in the market, the metadata can be lost; using the QTAKE system in the field as an example: when the camera is connected with the QTAKE system through a wired cable, audio and video data and metadata are transmitted into the QTAKE system together, wherein the most important is the file name, time code and start-stop recorder function, a storage card does not need to be pulled out of a movie machine for copying when DIT editing and proofreading are carried out on site, but videos synchronously recorded by the QTAEK system are directly used for verification, however, as the shooting site is very complicated, more and more dramas use wireless image transmission systems to replace the wired cable, but the wireless image transmission systems on the market have a defect that metadata are all lost when the audio and video are transmitted, the site DIT needs to invest huge manpower for field recording, the information is manually recorded, labor and time are wasted, errors are easy to occur, and particularly when shooting materials need to be modified and manufactured at the later stage, a user looks over the image materials without any identification one frame by one frame, wasting a lot of manpower.
Disclosure of Invention
In order to solve the above problems, the present invention proposes a wireless image transmission system capable of recording metadata of an image pickup material.
The invention is realized by the following technical scheme:
the invention provides a wireless image transmission system, which comprises:
a transmitting end; the transmitting end includes: the device comprises a camera module, a video deserializing module, a first central processing module, a first data processing module and a transmitting module; the camera module includes: an SDI end; the first data processing module comprises: a video input and an audio input;
the camera module is with the shooting material follow of shooing the SDI end of camera module with SDI signal transmission extremely video deserializer module, the SDI signal has included the audio and video and the metadata of the shooting material of camera module, the video deserializer module transmits after processing into video data, audio data and metadata with the data in the SDI signal central processing module, central processing module passes through video data input end transmission extremely first data processing module, central processing module passes through behind converting audio data and metadata into the I2C signal audio input end transmission extremely first data processing module, first data processing module passes through video data and I2C signal the emission module is launched with wireless signal's mode.
Further, the wireless image transmission system further includes: a receiving end; the receiving end includes: the device comprises a receiving module, a second data processing module, a second central processing module and a video parallel-serial module; the second data processing module includes: a video output terminal and an audio output terminal;
the receiving module receives the wireless signal of the transmitting module and transmits the wireless signal to the second data processing module, the second data processing module restores the wireless signal to video data and an I2C signal, the video data is transmitted to the second central processing module through the video output end, the I2C signal is transmitted to the second central processing module through the audio output end, the second central processing module restores the I2C signal to audio data and metadata, and the second central processing module transmits the video data, the audio data and the metadata to the video parallel-serial module.
Further, the receiving end further includes: a storage module; the video parallel-serial module restores video data, audio data and metadata into SDI signals and transmits the SDI signals to the storage module, and the storage module stores the SDI signals.
Further, the receiving end further includes: a conversion module and a display module; the second central processing module transmits the video data and the audio data to the conversion module, and the conversion module combines the video data and the audio data and transmits the combined video data and audio data to the display module for playing.
The invention has the beneficial effects that:
the wireless image transmission system provided by the invention can record the metadata of the shooting material while realizing the traditional wireless image transmission function, thereby being greatly convenient for users to modify and make the shooting material.
Drawings
FIG. 1 is a block diagram of a wireless image transmission system of the present invention;
fig. 2 is a circuit diagram of a wireless image transmission system according to the present invention.
Detailed Description
In order to more clearly and completely explain the technical scheme of the invention, the invention is further explained with reference to the attached drawings.
Referring to fig. 1 and fig. 2, the present invention provides a wireless image transmission system, including:
a transmitting end 10; the transmitting terminal 10 includes: the device comprises a camera module 11, a video deserializing module 12, a first central processing module 13, a first data processing module 14 and a transmitting module 15; the camera module 11 includes: an SDI end; the first data processing module 14 includes: a video input and an audio input;
the shooting material follow of camera module 11 will shoot the SDI end of camera module 11 is with SDI signal transmission extremely video deserializing module 12, the SDI signal has included the audio frequency and the metadata of the shooting material of camera module 11, video deserializing module 12 transmits behind the data processing in with the SDI signal video data, audio data and the metadata central processing module, central processing module passes through video data input end transmission extremely first data processing module 14, central processing module passes through behind converting audio data and metadata to the I2C signal audio input end transmission extremely first data processing module 14, first data processing module 14 passes through video data and I2C signal emission module 15 launches with wireless signal's mode.
In this embodiment, the video deserializing module 12 adopts a GS2971 chip, the first central processing module 13 adopts an FPGA chip, and the first data processing module 14 adopts an MAC chip; after being processed by the transmitting terminal 10, the shooting material shot by the camera module 11 is transmitted in a wireless signal manner through the transmitting module 15, and the wireless image transmission system has a wireless image transmission function and can record metadata of the shooting material.
Referring to fig. 1 and fig. 2, the wireless image transmission system further includes: a receiving end 20; the receiving end 20 includes: a receiving module 21, a second data processing module 22, a second central processing module 23 and a video parallel-serial module 24; the second data processing module 22 includes: a video output terminal and an audio output terminal;
the receiving module 21 receives the wireless signal of the transmitting module 15 and transmits the wireless signal to the second data processing module 22, the second data processing module 22 restores the wireless signal to video data and I2C signal, transmits the video data to the second central processing module 23 through the video output terminal, transmits the I2C signal to the second central processing module 23 through the audio output terminal, the second central processing module 23 restores the I2C signal to audio data and metadata, and the second central processing module 23 transmits the video data, the audio data and the metadata to the video parallel-serial module 24.
In this embodiment, the video parallel-serial module 24 adopts a GS2972 chip, the second central processing module 23 adopts an FPGA chip, and the second data processing module 22 adopts an MAC chip; the receiving module 21 receives the wireless signal of the transmitting module 15 and then transmits the wireless signal to the second data processing module 22, the receiving terminal 20 performs reverse processing on the wireless signal relative to the transmitting terminal 10 to restore the wireless image to an SDI signal, and the SDI signal includes audio and video and metadata of the shooting material of the camera module 11.
Referring to fig. 1 and fig. 2, the receiving end 20 further includes: a storage module 25; the video parallel-serial module 24 restores the video data, the audio data and the metadata into SDI signals and transmits the SDI signals to the storage module 25, and the storage module 25 stores the SDI signals.
In this embodiment, the SDI signal is transmitted to the storage module 25 for storage, and the SDI signal includes the audio/video and metadata of the shooting material of the camera module 11, so that the user can modify and make the shooting material in the later period.
Referring to fig. 1 and fig. 2, the receiving end 20 further includes: a conversion module 26 and a display module 27; the second central processing module 23 transmits the video data and the audio data to the conversion module 26, and the conversion module 26 combines the video data and the audio data and transmits them to the display module 27 for playing.
In this embodiment, the conversion module 26 adopts an STM32 chip, and the display module 27 is a high-definition liquid crystal electronic display screen; the conversion module 26 combines the video data and the audio data and transmits the combined video data and audio data to the display module 27 for playing, so that the shooting material shot by the camera module 11 can be monitored in real time.
Of course, the present invention may have other embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative effort, and all of them are within the protection scope of the present invention.
Claims (3)
1. A wireless image transmission system, characterized in that the wireless image transmission system comprises:
a transmitting end; the transmitting end includes: the device comprises a camera module, a video deserializing module, a first central processing module, a first data processing module and a transmitting module; the camera module includes: an SDI end; the first data processing module comprises: a video input and an audio input;
the camera module transmits shot materials to the video deserializing module from an SDI end of the camera module in an SDI signal, the SDI signal comprises audio and video and metadata of the shot materials of the camera module, the video deserializing module processes data in the SDI signal into video data, audio data and metadata and then transmits the video data, the audio data and the metadata to the central processing module, the central processing module transmits the video data to the first data processing module through the video input end, the central processing module converts the audio data and the metadata into I2C signals and transmits the I2C signals to the first data processing module through the audio input end, and the first data processing module transmits the video data and the I2C signals in a wireless signal mode through the transmitting module; and
a receiving end; the receiving end includes: the device comprises a receiving module, a second data processing module, a second central processing module and a video parallel-serial module; the second data processing module includes: a video output terminal and an audio output terminal;
the receiving module receives the wireless signal of the transmitting module and transmits the wireless signal to the second data processing module, the second data processing module restores the wireless signal to video data and an I2C signal, the video data is transmitted to the second central processing module through the video output end, the I2C signal is transmitted to the second central processing module through the audio output end, the second central processing module restores the I2C signal to audio data and metadata, and the second central processing module transmits the video data, the audio data and the metadata to the video parallel-serial module.
2. The wireless image transmission system according to claim 1, wherein the receiving end further comprises: a storage module; the video parallel-serial module restores video data, audio data and metadata into SDI signals and transmits the SDI signals to the storage module, and the storage module stores the SDI signals.
3. The wireless image transmission system according to claim 1, wherein the receiving end further comprises: a conversion module and a display module; the second central processing module transmits the video data and the audio data to the conversion module, and the conversion module combines the video data and the audio data and transmits the video data and the audio data to the display module for playing.
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| JP2001292412A (en) * | 2000-04-10 | 2001-10-19 | Sony Corp | Source storage device and source storage method |
| US9769417B1 (en) * | 2014-11-05 | 2017-09-19 | Lattice Semiconductor Corporation | Metadata transfer in audio video systems |
| CN107409254A (en) * | 2015-03-27 | 2017-11-28 | 索尼公司 | Information processor and its information processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103971688B (en) * | 2013-02-01 | 2016-05-04 | 腾讯科技（深圳）有限公司 | A kind of data under voice service system and method |
| WO2016129981A1 (en) * | 2015-02-13 | 2016-08-18 | 삼성전자 주식회사 | Method and device for transmitting/receiving media data |
| WO2017184963A1 (en) * | 2016-04-22 | 2017-10-26 | Robert Michael Dillon | Over-the-air radio broadcast signal metadata |
| CN207099210U (en) * | 2017-06-05 | 2018-03-13 | 重庆广九科技有限公司 | A kind of wireless image emitter |
| CN111918177A (en) * | 2020-07-31 | 2020-11-10 | 北京全景声信息科技有限公司 | Audio processing method, device, system and storage medium |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001292412A (en) * | 2000-04-10 | 2001-10-19 | Sony Corp | Source storage device and source storage method |
| US9769417B1 (en) * | 2014-11-05 | 2017-09-19 | Lattice Semiconductor Corporation | Metadata transfer in audio video systems |
| CN107409254A (en) * | 2015-03-27 | 2017-11-28 | 索尼公司 | Information processor and its information processing method |
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