CN110505381A - It is a kind of to realize vehicle-mounted camera video acquisition, coding and the method and system of transmission - Google Patents
It is a kind of to realize vehicle-mounted camera video acquisition, coding and the method and system of transmission Download PDFInfo
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- CN110505381A CN110505381A CN201910793040.9A CN201910793040A CN110505381A CN 110505381 A CN110505381 A CN 110505381A CN 201910793040 A CN201910793040 A CN 201910793040A CN 110505381 A CN110505381 A CN 110505381A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/70—Media network packetisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/762—Media network packet handling at the source
-
- 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
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- 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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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Closed-Circuit Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The present invention disclose it is a kind of realize vehicle-mounted camera video acquisition, coding and the method and system of transmission, be related to technical field of video processing.Traditional camera video acquisition, coding machine in and machine outside two kinds of form volumes it is excessive and aiming at the problem that cannot achieve wireless transmission, using technical solution based on the vehicle-mounted pick-up module of onboard patch form, video acquisition module, main control module, the realization process includes: starting vehicle-mounted pick-up module, vehicle-mounted pick-up module export naked video data in real time；Video acquisition module acquires naked video data in real time, and passes through PCIE interface real-time transmission to main control module；Main control module includes that video processing submodule and Video coding submodule, Video coding submodule encode naked video data real-time perfoming, and video handles submodule and carries out Real Time Compression to the naked video data after coding, and is wirelessly sent to cloud server terminal.Small in size, coding transmission high reliablity of the invention, can be widely applied in automatic driving vehicle.
Description
Technical field
The present invention relates to technical field of video transmission, specifically a kind of realization vehicle-mounted camera video acquisition, coding
And the method and system of transmission.
Background technique
Traditional camera video acquisition, coding are divided into machine and the outer two kinds of forms of machine, and acquisition and coding are limited in machine
Equipment performance problem generally can all have larger delay, be unable to satisfy requirement of real-time, and form, typically use pass machine outside
System server adds the form of capture card and coding card, and volume is larger, and power consumption is higher, and reliability is lower, is unable to satisfy vehicle-mounted use
Demand, and both the above mode all cannot achieve wireless transmission.
Summary of the invention
The present invention is directed in the machine of traditional camera video acquisition, coding and two kinds of form volumes are excessive outside machine and can not
The problem of realizing wireless transmission provides and a kind of realizes vehicle-mounted camera video acquisition, coding and the method and system of transmission.
Firstly, the present invention provide it is a kind of realize vehicle-mounted camera video acquisition, coding and the method for transmission, solve above-mentioned skill
Art problem the technical solution adopted is as follows:
A method of realizing vehicle-mounted camera video acquisition, coding and transmission, this method is based on onboard patch form
Vehicle-mounted pick-up module, video acquisition module, main control module, this method the realization process includes:
S1, starting vehicle-mounted pick-up module, vehicle-mounted pick-up module export naked video data in real time；
S2, video acquisition module acquire the naked video data of vehicle-mounted photographing module output in real time, and real by PCIE interface
When be sent to main control module；
S3, main control module include that video handles submodule and Video coding submodule,
S31, the naked video data real-time perfoming that the Video coding submodule of main control module exports video acquisition module are compiled
Yard, naked video data is sent to video processing submodule after coding；
S32, video processing submodule carry out Real Time Compression to the naked video data after coding, and wirelessly transmit
To cloud server terminal.
In step S1, S2, video acquisition module connects multichannel vehicle-mounted pick-up module, and multichannel vehicle-mounted pick-up module synchronization opens
Naked video data is moved and exports in real time, video acquisition module acquires the naked video data of multichannel vehicle-mounted pick-up module output in real time,
And pass through PCIE interface real-time transmission to main control module；
Alternatively,
The quantity of video acquisition module is less than the quantity of vehicle-mounted pick-up module, and a video acquisition module connection is at least all the way
Vehicle-mounted pick-up module, the vehicle-mounted pick-up module synchronization for connecting the same video acquisition module start and export naked video counts in real time
According to each video acquisition module acquires the naked video data of its connected vehicle-mounted pick-up module output, all video acquisitions in real time
Module passes through PCIE interface for the naked video data real-time transmission of acquisition to main control module.
It is preferred that vehicle-mounted pick-up module uses the super clear photographing module of 4K, vehicle-mounted pick-up module exports naked video by HDMI interface
Data.
In step s3, main control module further includes video memory submodule；
The naked video data of video acquisition module output is first stored in video memory submodule；
Video coding submodule is successively read naked video data from video memory submodule and is encoded；
The naked video data that Video coding submodule block coding is completed is stored in video memory submodule again；
Video handles naked video data of the submodule after being successively read coding in video memory submodule and carries out Real Time Compression.
It is preferred that main control module uses Nvidia Xavier chip, power consumption 30W.
Secondly, vehicle-mounted camera video acquisition, coding and the system of transmission are realized the present invention also provides a kind of, the system packet
Rubbing board carries patch form:
Vehicle-mounted pick-up module, for shooting video and exporting naked video data in real time；
Video acquisition module for acquiring the naked video data of vehicle-mounted photographing module output in real time, and passes through PCIE interface
Real-time transmission is to main control module；
Main control module, the naked video data real-time perfoming coding for being exported to video acquisition module, compression, and pass through nothing
Line mode is sent to cloud server terminal.
Specifically, involved video acquisition module connects multichannel vehicle-mounted pick-up module, multichannel vehicle-mounted pick-up module synchronization is opened
Naked video data is moved and exports in real time, video acquisition module acquires the naked video data of multichannel vehicle-mounted pick-up module output in real time,
And pass through PCIE interface real-time transmission to main control module；
Alternatively,
The quantity of involved video acquisition module is less than the quantity of vehicle-mounted pick-up module, and a video acquisition module is connected to
Few vehicle-mounted pick-up module all the way, the vehicle-mounted pick-up module synchronization for connecting the same video acquisition module start and export naked view in real time
Frequency evidence, each video acquisition module acquire the naked video data of its connected vehicle-mounted pick-up module output, all videos in real time
Acquisition module passes through PCIE interface for the naked video data real-time transmission of acquisition to main control module.
Preferably, involved vehicle-mounted pick-up module uses the super clear photographing module of 4K, and vehicle-mounted pick-up module passes through HDMI interface
Export naked video data.
Specifically, involved main control module includes video memory submodule, video processing submodule and Video coding submodule；
The naked video data of video acquisition module output is first stored in video memory submodule；
Video coding submodule is successively read naked video data from video memory submodule and is encoded；
The naked video data that Video coding submodule block coding is completed is stored in video memory submodule again；
Video handles naked video data of the submodule after being successively read coding in video memory submodule and carries out Real Time Compression, and
Wirelessly it is sent to cloud server terminal.
Preferably, involved main control module uses Nvidia Xavier chip, power consumption 30W.
It is of the invention it is a kind of realize vehicle-mounted camera video acquisition, coding and the method and system of transmission, with the prior art
Compared to having the beneficial effect that
1) vehicle-mounted pick-up module, video acquisition module, master control mould of the realization process of the invention based on onboard patch form
Block no longer uses traditional PCIE golden finger plug-in card form, reduces the volume of modules, increases video acquisition, coding
And the reliability of wireless transmission, it can be widely applied in various automatic driving vehicles and industry, building trade special-purpose vehicle；
2) vehicle-mounted pick-up module of the invention is responsible for exporting naked video data, and main control module is responsible for carrying out naked video data
Coding and compression, and it is wirelessly sent to cloud server terminal, by separately carrying out video acquisition and coding work, save
The time of video transmission realizes real-time transmission, is particularly suitable for vehicle-mounted scene at the same time it can also keep low latency.
Detailed description of the invention
Attached drawing 1 is the flow diagram of the embodiment of the present invention one；
Attached drawing 2 is the connection block diagram of structure involved by the embodiment of the present invention one.
Attached drawing 3 is the flow diagram of the embodiment of the present invention two；
Attached drawing 4 is the structure connection block diagram of the embodiment of the present invention two or embodiment three.
Each label information indicates in attached drawing:
1, vehicle-mounted pick-up module, 2, video acquisition module, 3, main control module；
31, video handles submodule, 32, Video coding submodule, 33, video memory submodule.
Specific embodiment
The technical issues of to make technical solution of the present invention, solving and technical effect are more clearly understood, below in conjunction with tool
Body embodiment carries out clear, complete description to technical solution of the present invention.
Embodiment one:
In conjunction with attached drawing 1, the present embodiment propose it is a kind of realize vehicle-mounted camera video acquisition, coding and the method for transmission, should
Vehicle-mounted pick-up module 1, video acquisition module 2, main control module 3 of the method based on onboard patch form, the realization process of this method
Include:
S1, starting vehicle-mounted pick-up module 1, vehicle-mounted pick-up module 1 use the super clear photographing module of 4K, and vehicle-mounted pick-up module 1 is logical
It crosses HDMI interface and exports naked video data in real time；
S2, video acquisition module 2 acquire the naked video data that vehicle-mounted photographing module 1 exports in real time, and pass through PCIE interface
Real-time transmission is to main control module 3；
S3, main control module 3 include that video handles submodule 31 and Video coding submodule 32,
S31, main control module 3 the naked video data that video acquisition module 2 is exported of Video coding submodule 32 in real time into
Row encodes, and naked video data is sent to video processing submodule 31 after coding；
S32, video handle the naked video data progress Real Time Compression after 31 pairs of submodule codings, and wirelessly pass
It send to cloud server terminal, wireless mode can be 4G/5G/WIFI.
In conjunction with attached drawing 2, in the present embodiment, a video acquisition module 2 connects two vehicle-mounted pick-up modules 1, two vehicles
It carries 1 synchronous averaging of photographing module and exports naked video data in real time, video acquisition module 2 acquires two vehicle-mounted pick-up modules in real time
The naked video data of 1 output, and pass through PCIE interface real-time transmission to main control module 3.
Embodiment two:
In conjunction with attached drawing 3, the present embodiment propose it is a kind of realize vehicle-mounted camera video acquisition, coding and the method for transmission, should
Vehicle-mounted pick-up module 1, video acquisition module 2, main control module 3 of the method based on onboard patch form, the realization process of this method
Include:
S1, starting vehicle-mounted pick-up module 1, vehicle-mounted pick-up module 1 use the super clear photographing module of 4K, and vehicle-mounted pick-up module 1 is logical
It crosses HDMI interface and exports naked video data in real time；
S2, video acquisition module 2 acquire the naked video data that vehicle-mounted photographing module 1 exports in real time, and pass through PCIE interface
Real-time transmission is to main control module 3；
S3, main control module 3 use Nvidia Xavier chip, power consumption 30W, and main control module 3 includes video memory submodule
33, video processing submodule 31 and Video coding submodule 32,
The naked video data that S31, video acquisition module 2 export is first stored in video memory submodule 33；
S32, Video coding submodule 32 are successively read naked video data from video memory submodule 33 and are encoded；
The naked video data that S33, the coding of Video coding submodule 32 are completed is stored in video memory submodule 33 again；
S34, video handle naked video data of the submodule 31 after being successively read coding in video memory submodule 33 and carry out in fact
When compress, and be wirelessly sent to cloud server terminal, wireless mode can be 4G/5G/WIFI.
In conjunction with attached drawing 4, in the present embodiment, specifically use two video acquisition modules 2, four vehicle-mounted pick-up modules 1, often
A video acquisition module 2 connects two vehicle-mounted pick-up modules 1.Connect two vehicle-mounted pick-up moulds of the same video acquisition module 2
1 synchronous averaging of block simultaneously exports naked video data in real time, and each video acquisition module 2 acquires it in real time and connects two vehicle-mounted pick-ups
The naked video data that module 1 exports, two video acquisition modules 2 are passed the naked video data of acquisition by PCIE interface in real time
It send to main control module 3.
Embodiment three:
In conjunction with attached drawing 4, the present embodiment propose it is a kind of realize vehicle-mounted camera video acquisition, coding and the system of transmission, should
System includes onboard patch form:
Vehicle-mounted pick-up module 1, using the super clear photographing module of 4K, for shooting video and being exported in real time by HDMI interface naked
Video data；
Video acquisition module 2, the naked video data exported for acquiring vehicle-mounted photographing module 1 in real time, and connect by PCIE
Main control module 3 is sent to when cause for gossip；
Main control module 3, using Nvidia Xavier chip, power consumption 30W is naked for exporting to video acquisition module 2
Video data real-time perfoming coding, compression, and it is wirelessly sent to cloud server terminal, wireless mode can be 4G/5G/
WIFI。
In the present embodiment, two video acquisition modules 2, four vehicle-mounted pick-up modules 1, each video acquisition are specifically used
Module 2 connects two vehicle-mounted pick-up modules 1.Connect two 1 synchronous averagings of vehicle-mounted pick-up module of the same video acquisition module 2
And naked video data is exported in real time, each video acquisition module 2 acquires it in real time and connects what two vehicle-mounted pick-up modules 1 exported
Naked video data, two video acquisition modules 2 pass through PCIE interface for the naked video data real-time transmission of acquisition to master control mould
Block 3.
In the present embodiment, involved main control module 3 includes that video memory submodule 33, video processing submodule 31 and video are compiled
Numeral module 32；
The naked video data that video acquisition module 2 exports is first stored in video memory submodule 33；
Video coding submodule 32 is successively read naked video data from video memory submodule 33 and is encoded；
The naked video data that the coding of Video coding submodule 32 is completed is stored in video memory submodule 33 again；
Video handles naked video data of the submodule 31 after being successively read coding in video memory submodule 33 and is pressed in real time
Contracting, and it is wirelessly sent to cloud server terminal, wireless mode can be 4G/5G/WIFI.
In summary, a kind of vehicle-mounted camera video acquisition, coding and the method for transmission are realized and it be using of the invention
System no longer uses traditional PCIE golden finger plug-in card form, reduces the volume of modules, increases video acquisition, coding
And the reliability of wireless transmission, it can be widely applied in various automatic driving vehicles and industry, building trade special-purpose vehicle.
Use above specific case elaborates the principle of the present invention and embodiment, these embodiments are
It is used to help understand core of the invention technology contents.Based on above-mentioned specific embodiment of the invention, the technology of the art
Without departing from the principle of the present invention, any improvement and modification to made by the present invention should all fall into the present invention to personnel
Scope of patent protection.
Claims (10)
1. a kind of realize vehicle-mounted camera video acquisition, coding and the method for transmission, which is characterized in that this method is based on onboard patch
The vehicle-mounted pick-up module of sheet form, video acquisition module, main control module, this method the realization process includes:
S1, starting vehicle-mounted pick-up module, vehicle-mounted pick-up module export naked video data in real time；
S2, video acquisition module acquire the naked video data of vehicle-mounted photographing module output in real time, and are passed in real time by PCIE interface
It send to main control module；
S3, main control module include that video handles submodule and Video coding submodule,
S31, the naked video data real-time perfoming that the Video coding submodule of main control module exports video acquisition module encode, and compile
Naked video data is sent to video processing submodule after code；
S32, video processing submodule carry out Real Time Compression to the naked video data after coding, and are wirelessly sent to cloud
Server-side.
A kind of realize that vehicle-mounted camera video acquisition, coding and the method for transmission, feature exist 2. according to claim 1
In the video acquisition module connects multichannel vehicle-mounted pick-up module, and multichannel vehicle-mounted pick-up module synchronization starts and exports in real time naked
Video data, video acquisition module acquires the naked video data of multichannel vehicle-mounted pick-up module output in real time, and passes through PCIE interface
Real-time transmission is to main control module；
Alternatively,
The quantity of the video acquisition module is less than the quantity of the vehicle-mounted pick-up module, and a video acquisition module connection is at least
Vehicle-mounted pick-up module all the way, the vehicle-mounted pick-up module synchronization for connecting the same video acquisition module start and export naked video in real time
Data, each video acquisition module acquire the naked video data of its connected vehicle-mounted pick-up module output in real time, and all videos are adopted
Collection module passes through PCIE interface for the naked video data real-time transmission of acquisition to main control module.
A kind of realize that vehicle-mounted camera video acquisition, coding and the method for transmission, feature exist 3. according to claim 2
In the vehicle-mounted pick-up module uses the super clear photographing module of 4K, and the vehicle-mounted pick-up module exports naked video by HDMI interface
Data.
4. it is according to claim 1 or 2 it is a kind of realize vehicle-mounted camera video acquisition, coding and the method for transmission, it is special
Sign is that the main control module further includes video memory submodule；
The naked video data of the video acquisition module output is first stored in the video memory submodule；
The Video coding submodule is successively read naked video data from the video memory submodule and is encoded；
The naked video data that the Video coding submodule block coding is completed is stored in the video memory submodule again；
The video handles naked video data of the submodule after being successively read coding in the video memory submodule and is pressed in real time
Contracting.
A kind of realize that vehicle-mounted camera video acquisition, coding and the method for transmission, feature exist 5. according to claim 4
In the main control module uses Nvidia Xavier chip, power consumption 30W.
6. a kind of realize vehicle-mounted camera video acquisition, coding and the system of transmission, which is characterized in that the system comprises onboard
Patch form:
Vehicle-mounted pick-up module, for shooting video and exporting naked video data in real time；
Video acquisition module, for acquiring the naked video data of vehicle-mounted photographing module output in real time, and it is real-time by PCIE interface
It is sent to main control module；
Main control module, the naked video data real-time perfoming coding for being exported to video acquisition module, compression, and pass through wireless parties
Formula is sent to cloud server terminal.
A kind of realize that vehicle-mounted camera video acquisition, coding and the system of transmission, feature exist 7. according to claim 6
In the video acquisition module connects multichannel vehicle-mounted pick-up module, and multichannel vehicle-mounted pick-up module synchronization starts and exports in real time naked
Video data, video acquisition module acquires the naked video data of multichannel vehicle-mounted pick-up module output in real time, and passes through PCIE interface
Real-time transmission is to main control module；
Alternatively,
The quantity of the video acquisition module is less than the quantity of the vehicle-mounted pick-up module, and a video acquisition module connection is at least
Vehicle-mounted pick-up module all the way, the vehicle-mounted pick-up module synchronization for connecting the same video acquisition module start and export naked video in real time
Data, each video acquisition module acquire the naked video data of its connected vehicle-mounted pick-up module output in real time, and all videos are adopted
Collection module passes through PCIE interface for the naked video data real-time transmission of acquisition to main control module.
A kind of realize that vehicle-mounted camera video acquisition, coding and the system of transmission, feature exist 8. according to claim 7
In the vehicle-mounted pick-up module uses the super clear photographing module of 4K, and the vehicle-mounted pick-up module exports naked video by HDMI interface
Data.
9. it is according to claim 6 or 7 it is a kind of realize vehicle-mounted camera video acquisition, coding and the system of transmission, it is special
Sign is that the main control module includes video memory submodule, video processing submodule and Video coding submodule；
The naked video data of the video acquisition module output is first stored in the video memory submodule；
The Video coding submodule is successively read naked video data from the video memory submodule and is encoded；
The naked video data that the Video coding submodule block coding is completed is stored in the video memory submodule again；
The video handles naked video data of the submodule after being successively read coding in the video memory submodule and is pressed in real time
Contracting, and wirelessly it is sent to cloud server terminal.
A kind of vehicle-mounted camera video acquisition, coding and the system of transmission, feature are realized 10. according to claim 9
It is, the main control module uses Nvidia Xavier chip, power consumption 30W.
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| CN110855852A (en) * | 2019-12-03 | 2020-02-28 | 深圳市沃特沃德股份有限公司 | Multi-channel image data output method and device and storage medium |
| CN112804578A (en) * | 2021-01-28 | 2021-05-14 | 广州虎牙科技有限公司 | Atmosphere special effect generation method and device, electronic equipment and storage medium |
| CN114786036A (en) * | 2022-03-02 | 2022-07-22 | 上海仙途智能科技有限公司 | Monitoring method and device for automatic driving vehicle, storage medium and computer equipment |
| CN115866173A (en) * | 2023-02-20 | 2023-03-28 | 上海芯浦科技有限公司 | Video transmission chip |
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