CN107277457A - A kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment and method - Google Patents
A kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment and method Download PDFInfo
- Publication number
- CN107277457A CN107277457A CN201710631178.XA CN201710631178A CN107277457A CN 107277457 A CN107277457 A CN 107277457A CN 201710631178 A CN201710631178 A CN 201710631178A CN 107277457 A CN107277457 A CN 107277457A
- Authority
- CN
- China
- Prior art keywords
- video
- module
- students
- processing module
- processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
-
- 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
-
- 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
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention discloses a kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment, including video processing module (VPSS), video input module (VI), Video Output Modules (VO), video encoding module (VNEC), Video decoding module (VDEC), the video processing module respectively with video input module, Video Output Modules, video encoding module, Video decoding module, video multiplex module and demultiplexing module electrical connection, the video processing module is connected with video distribution amplifier, the video input module includes SDI video capture processors and VGA acquisition chips, the coding module includes bit rate controller (RC) and encoder (Encoder).The equipment cost is low, and construction is simple, and maintenance workload is small.
Description
Technical field
The present invention relates to a kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment and method.
Background technology
The collection of PC formulas audio frequency and video needs capture card being inserted on the PCI/PCI-E slots of PC, since being interface, certainly
The problem of having interface loosening；In addition, the golden finger (PCI/PCIE interface sections) of part capture card is caused there is also oxidation
The problem of loose contact；And embedded mode its all chip is all welded onto on a fixed plank, in the absence of interface
The problem of loosening and aoxidize, so its shock resistance and dust reduction capability can be more preferable.Again from the point of view of software aspects, embedded major embodiment
The influence of some extra factors is not readily susceptible in operating system, and the WINDOWS operating systems of PC itself institute band are present not
Undesirable elements caused by stability and other subsidiary functions, also just like poisoning intrusion, compatibility caused by piracy software and
The problem of stability.
With continuing to develop for embedded technology and image processing techniques, both technologies are combined again by network skill
The advantage of art, has widely been paid close attention to based on Embedded video capture technology with processing, and its application is also appeared in gradually
Among every field.Many problems are exposed in traditional video acquisition application process, such as：Collecting device it is stupid
Weight, development cost are expensive and not easy to operate etc., and these problems promote people to seek a kind of less expensive, easily operated and open
The platform of hair realizes the collection and processing of video.Compared with traditional video capture technology, embedded video acquisition technique
Have the advantages that relatively reliable, stability is higher, adaptability is stronger.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art part, the present invention provide it is a kind of be used for impart knowledge to students multi-channel video capturing and
Processing equipment and method, the equipment cost are low, and construction is simple, and maintenance workload is small, and the apparatus and method can realize that multichannel SDI is high
The coding of clear video image and all the way coding and storage of VGA videos and 2 tunnel HDMI videos.
To achieve the above object, the present invention is adopted the following technical scheme that：A kind of multi-channel video capturing for being used to impart knowledge to students and place
Manage equipment, including video processing module (VPSS), video input module (VI), Video Output Modules (VO), video encoding module
(VNEC) and Video decoding module (VDEC), the video processing module respectively with video input module, Video Output Modules, regard
Frequency coding module, Video decoding module electrical connection, the video processing module are connected with video distribution amplifier, and the video is defeated
Entering module includes SDI video capture processors and VGA acquisition chips, and the coding module includes bit rate controller (RC) and encoder
(Encoder)。
In the above-mentioned technical solutions, in addition to video cache pond processing module and public video cache pond, the video delays
Deposit pond processing module to electrically connect with video encoding module, Video Output Modules, video distribution amplifier module (VDA) respectively, institute
State public video cache pond to be connected with video cache pond processing module by wire, foregoing public video cache pond includes multiple phases
With memory size, the continuous cache blocks of physical address.
In the above-mentioned technical solutions, the memory block is the cache blocks of 3M capacity, and the quantity of cache blocks is 256 pieces.
In the above-mentioned technical solutions, the video processing module thinks Hi3531A processor chips and memory chip for sea,
SDI video capture processors are TW6874 chips, and VGA acquisition chips are ADV7842 chips.
A kind of MCVF multichannel voice frequency video acquisition for being used to impart knowledge to students and processing method, including step：
1) multi-channel video signal is transferred to and regarded by SDI video capture processors and VGA acquisition chips by video input module
Frequency processing module；
2) video processing module carries out denoising to the image sended over from video input module, at image enhaucament sharpening
Reason, and will it is treated after figure be sent to video encoding module, while realize homologous output multi-channel view data be used to encoding,
Preview or candid photograph；
3) video encoding module receives the view data from video processing module, is then carried out by different agreement and configuration
Encode and export corresponding code stream, be then sent to Video decoding module；
4) Video decoding module is decoded to the view data from video encoding module, and by the picture number after parsing
Carry out image procossing according to video processing module is sent to or be sent directly to Video Output Modules；
5) Video Output Modules receive the view data from video processing module or Video decoding module, can play out
Control, and exported by the output protocol of user configuring to peripheral video equipment.
In the above-mentioned technical solutions, step 4) in send complete frame code stream every time to decoder, often call and once send
Interface, decoder thinks that the frame code stream is over, it is ensured that call transmission interface transmitted stream to be necessary for a frame every time.
The beneficial effects of the invention are as follows：The equipment cost is low, it is not necessary to which host computer can work, and construction is simple,
Maintenance workload is small, and the apparatus and method can realize the coding of multichannel SDI high clear video images and VGA videos and 2 tunnels all the way
The coding of HDMI video and storage, and two cameras and an embedded host can complete over 8 cameras and two
The work that platform PC main frames could be completed, substantially reduces cost.
Brief description of the drawings
Fig. 1 is the connection diagram of each module of the present invention.
Fig. 2 is the process chart of video processing module.
Fig. 3 is the workflow diagram of coding module.
Fig. 4 is the operating diagram of bit rate controller in Fig. 3.
Fig. 5 is the workflow signal when equipment includes public video cache pond and video cache pond processing module
Figure.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the invention will be further described.
A kind of multi-channel video capturing for being used to impart knowledge to students as shown in Figure 1, Figure 3 and processing equipment, including video processing module
(VPSS), video input module (VI), Video Output Modules (VO), video encoding module (VNEC) and Video decoding module
(VDEC), the video processing module is decoded with video input module, Video Output Modules, video encoding module, video respectively
Module is electrically connected, and the video processing module is connected with video distribution amplifier, and the video input module is adopted including SDI videos
Collect chip and VGA acquisition chips, the coding module includes bit rate controller (RC) and encoder (Encoder).
As shown in Fig. 2 video processing module receives the image that video input module is sended over, image can be gone
Make an uproar, the processing such as image enhaucament, sharpening, and realize homologous output multi-channel view data be used to encoding, preview or candid photograph.
As shown in figure 4, in Image Communication Rate Control purpose：By adjusting coding parameter, in the control unit interval
The data volume of encoded video stream, so that the bit stream produced meets the demand of various applications.In the efficiency and video of video compress
Have very big relation, for changing various picture, the code stream of the output of Video coding is changed greatly, bad in channel circumstance
When be easy for causing decoding end to show quality it is unstable.Therefore, control code check can be in the bad feelings of channel circumstance
The quality that decoder is shown under condition keeps stable.
As shown in figure 5, also include video cache pond processing module and public video cache pond, the video cache pond processing
Module is electrically connected with video encoding module, Video Output Modules, video distribution amplifier module (VDA) respectively, described public to regard
Frequency cache pool is connected by wire with video cache pond processing module, and it is big that foregoing public video cache pond includes multiple same memories
Small, the continuous cache blocks of physical address.
In the above-mentioned technical solutions, the memory block is the cache blocks of 3M capacity, and the quantity of cache blocks is 256 pieces.
Video cache pond is main to provide bulk physics memory management function to media business, is responsible for the distribution of internal memory and returns
Receive, give full play to the effect in memory cache pond, allow physical memory resource reasonable employment in each medium process module.It is one group big
The small continuous cache blocks of identical, physical address constitute a video cache pond.
In the above-mentioned technical solutions, the video processing module thinks Hi3531A processor chips for sea, and SDI videos are adopted
Integrate chip as GV7601 chips, VGA acquisition chips are TVP7200 chips.Hi3531A is thought as processor master chip using sea,
TW6874 chips access 6 road SDI vision signals, and ADV7842 chips access 1 road VGA signals and 2 road HDMI signals.It can also increase
Plus nand flash memory is used as data storage.
A kind of MCVF multichannel voice frequency video acquisition for being used to impart knowledge to students and processing method, including step：
1) multi-channel video signal is transferred to and regarded by SDI video capture processors and VGA acquisition chips by video input module
Frequency processing module；
2) video processing module carries out denoising to the image sended over from video input module, at image enhaucament sharpening
Reason, and will it is treated after figure be sent to video encoding module, while realize homologous output multi-channel view data be used to encoding,
Preview or candid photograph；
3) video encoding module receives the view data from video processing module, is then carried out by different agreement and configuration
Encode and export corresponding code stream, be then sent to Video decoding module；
4) Video decoding module is decoded to the view data from video encoding module, and by the picture number after parsing
Carry out image procossing according to video processing module is sent to or be sent directly to Video Output Modules；
5) Video Output Modules receive the view data from video processing module or Video decoding module, can play out
Control, and exported by the output protocol of user configuring to peripheral video equipment.
In the above-mentioned technical solutions, step 4) in send complete frame code stream every time to decoder, often call and once send
Interface, decoder thinks that the frame code stream is over, it is ensured that call transmission interface transmitted stream to be necessary for a frame every time.
The equipment cost is low, it is not necessary to which host computer can work, and construction is simple, and maintenance workload is small, the equipment
The coding and the coding and storage of VGA videos and 2 tunnel HDMI videos all the way of multichannel SDI high clear video images can be realized with method,
And two cameras and an embedded host can complete over the work that 8 cameras and two PC main frames could complete
Make, substantially reduce cost.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.
Claims (7)
1. a kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment, it is characterized in that：Including video processing module, video input
Module, Video Output Modules, video encoding module, the video processing module respectively with video input module, video frequency output mould
Block, video encoding module, electrical connection, the video processing module are connected with video distribution amplifier, the video input module
Including SDI video capture processors and VGA acquisition chips, the coding module includes bit rate controller and encoder.
2. the multi-channel video capturing according to claim 1 for being used to impart knowledge to students and processing equipment, it is characterized in that：Also include video
Decoder module, the Video decoding module is electrically connected with video processing module.
3. the multi-channel video capturing according to claim 1 for being used to impart knowledge to students and processing equipment, it is characterized in that：Also include video
Cache pool processing module and public video cache pond, video cache pond processing module respectively with video encoding module, video
Output module, the electrical connection of video distribution amplifier module, the public video cache pond is handled by wire and video cache pond
Module is connected, and foregoing public video cache pond includes multiple same memory sizes, the continuous cache blocks of physical address.
4. the multi-channel video capturing according to claim 3 for being used to impart knowledge to students and processing equipment, it is characterized in that：The memory block
For the cache blocks of 3M capacity, the quantity of cache blocks is 256 pieces.
5. the MCVF multichannel voice frequency video acquisition according to claim 1 for being used to impart knowledge to students and processing equipment, it is characterized in that：It is described to regard
Frequency processing module thinks Hi3531A processor chips and memory chip for sea, and SDI video capture processors are TW6874 chips, VGA
Acquisition chip is ADV7842 chips.
6. a kind of multi-channel video capturing for being used to impart knowledge to students and processing method, including step：
A) multi-channel video signal is transferred at video by video input module by SDI video capture processors and VGA acquisition chips
Manage module；
B) video processing module carries out denoising, image enhaucament Edge contrast to the image sended over from video input module, and
Will it is treated after figure be sent to video encoding module, while realize homologous output multi-channel view data be used to encoding, preview
Or capture；
C) video encoding module receives the view data from video processing module, is then encoded by different agreement and configuration
And corresponding code stream is exported, it is then sent to Video decoding module；
D) Video decoding module is decoded to the view data from video encoding module, and the view data after parsing is sent out
Video processing module is given to carry out image procossing or be sent directly to Video Output Modules；
5) Video Output Modules receive the view data from video processing module or Video decoding module, can play out control
System, and exported by the output protocol of user configuring to peripheral video equipment.
7. the multi-channel video capturing according to claim 6 for being used to impart knowledge to students and processing method, it is characterized in that：Step 4) in it is every
It is secondary to send complete frame code stream to decoder, a transmission interface is often called, decoder thinks that the frame code stream is over, it is ensured that
Transmission interface transmitted stream is called to be necessary for a frame every time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631178.XA CN107277457A (en) | 2017-07-28 | 2017-07-28 | A kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631178.XA CN107277457A (en) | 2017-07-28 | 2017-07-28 | A kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107277457A true CN107277457A (en) | 2017-10-20 |
Family
ID=60074938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710631178.XA Withdrawn CN107277457A (en) | 2017-07-28 | 2017-07-28 | A kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107277457A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110324550A (en) * | 2019-07-17 | 2019-10-11 | 陕西千山航空电子有限责任公司 | A kind of video recorder |
| CN110958431A (en) * | 2019-12-11 | 2020-04-03 | 武汉迅检科技有限公司 | Multi-channel video compression post-transmission system and method |
| CN112333445A (en) * | 2020-11-23 | 2021-02-05 | 武汉华中天纬测控有限公司 | Embedded high-definition video compression transmission system |
-
2017
- 2017-07-28 CN CN201710631178.XA patent/CN107277457A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110324550A (en) * | 2019-07-17 | 2019-10-11 | 陕西千山航空电子有限责任公司 | A kind of video recorder |
| CN110958431A (en) * | 2019-12-11 | 2020-04-03 | 武汉迅检科技有限公司 | Multi-channel video compression post-transmission system and method |
| CN112333445A (en) * | 2020-11-23 | 2021-02-05 | 武汉华中天纬测控有限公司 | Embedded high-definition video compression transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1976429B (en) | Video frequency transmitting system and method based on PC and high-resolution video signal collecting card | |
| CN102547444B (en) | Method for optimizing play of real-time video monitoring record | |
| CN107155093B (en) | Video preview method, device and equipment | |
| CN107277457A (en) | A kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment and method | |
| CN105959797A (en) | Video decoding method and digital TV | |
| CN105979189A (en) | Video signal processing and storing method and video signal processing and storing system | |
| CN107846557A (en) | A kind of collection distribution method, system and the storage device of multichannel audio-video frequency signal | |
| CN105554375A (en) | Method and device of video preview in digital video recorder | |
| CN207266182U (en) | A kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment | |
| EP3013025A1 (en) | Multimedia data transmission method, and apparatus | |
| CN105100663A (en) | Recording system based on hardware encoders, audio and video processing apparatus, and recording method | |
| CN202210851U (en) | Control device for standard-definition/ high-definition audio video coder and decoder | |
| CN103517066A (en) | High-definition embedded video encoding and decoding system based on SoC | |
| CN214014396U (en) | Multi-channel video image processing device | |
| CN205681582U (en) | 4K high definition later stage non-volume processing system | |
| CN115396621A (en) | Network push flow control method, device, equipment and storage medium based on RK628D | |
| CN204131646U (en) | A kind of digital video signal decoder | |
| CN104796728A (en) | 4G-WIFI (fourth generation-wireless fidelity) high-definition network video server | |
| CN108540866A (en) | A kind of video-splicing show under multi-channel video output system and method | |
| CN109302574A (en) | A kind of method and apparatus handling video flowing | |
| CN115967784A (en) | Image transmission processing system and method based on MIPI CSI-PHY protocol | |
| CN206100283U (en) | Multichannel high definition recorded broadcast system | |
| CN202799001U (en) | Novel embedded video server | |
| CN203912077U (en) | Hardware coder-based recording system and video/audio processing device | |
| CN105681825A (en) | Video code stream output control apparatus and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171020 |
|
| WW01 | Invention patent application withdrawn after publication |