CN207835580U - The special non-volume video frequency collection card of subway - Google Patents
The special non-volume video frequency collection card of subway Download PDFInfo
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- CN207835580U CN207835580U CN201721909503.6U CN201721909503U CN207835580U CN 207835580 U CN207835580 U CN 207835580U CN 201721909503 U CN201721909503 U CN 201721909503U CN 207835580 U CN207835580 U CN 207835580U
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Abstract
The utility model is related to electronic fields, more specifically, it is related to a kind of special non-volume video frequency collection card of subway, the special non-volume video frequency collection card of the subway, including pcb board ontology, location hole on pcb board ontology, it further include heat dissipating layer component, electronic component and bus marco link slot, the heat dissipating layer component includes heat emission hole, thermal column and cooling stand, the thermal column is plugged on heat emission hole, thermal column is fastened on by bayonet on cooling stand, the cooling stand and pcb board body bottom portion against, the electronic component includes output unit, decoding unit and data buffer storage unit, they are all mounted on pcb board ontology, the bus marco link slot is fixed on pcb board ontology side, the device is novel in design, heat dissipating layer component with novel designs, the radiating efficiency of snap-gauge can be greatly improved.
Description
Technical field
The utility model is related to electronic fields, more particularly, to a kind of special non-volume video frequency collection card of subway.
Background technology
PCI Express (Peripheral Component Interconnect Express), abbreviation PCIE are electricity
One kind of brain Bus PC I, it has continued to use the programming concept and communication standard of existing PCI, but builds based on faster serial communication
System.Intel is the main advocate of the interface.PCIe is only applied to intraconnection.Since PCIe is to be based on existing PCI
System, need to only change physical layer and need not change software can be converted to PCIE by existing pci system.PCIE possesses faster speed
Rate, to replace the existing internal bus of almost all (including AGP and PCI).With the publication of PCIE specifications, some producers are
It is proposed the exchanger based on PCIE.So that the bottleneck with high bandwidth transmission is eliminated.In order to meet user pursue it is beautiful
Super large picture, pure color, high-resolution display effect, now socially greatly to Command center, network management center
Establish, it is small to video conference, academic report, technology lecture and multifunctional conference progress, to big picture, multicolour, high brightness,
The serious hope of high-resolution display effect is more and more stronger, falls over each other to meet its demand using DLP, DID, LCD large-screen splicing.It passes
The video-splicing processor of system mostly uses software to carry out video processing, and the need of user are all cannot be satisfied in frame speed and resolution ratio
It asks, if user increases resolution ratio by force, the image of conventional video splicing device output, which will appear, to fracture and image noise mistake
It is more, and the picture maximum of the video processor maximum synthesis of market appearance supports 4 road images synthesis, and use hold for a long time
It is also easy to produce huge heat, heat accumulation is bigger, easier to cause to be lost to circuit board, it is therefore proposed that a kind of solving above-mentioned ask
The special non-volume video frequency collection card of subway of topic is actually necessary.
Utility model content
The utility model is at least one defect (deficiency) overcome described in the above-mentioned prior art, and it is special to provide a kind of subway
Non- volume video frequency collection card.
In order to solve the above technical problems, the technical solution of the utility model is as follows：A kind of special non-volume video acquisition of subway
Card, including pcb board ontology, the location hole on pcb board ontology, further include heat dissipating layer component, electronic component and bus
Link slot is controlled, the heat dissipating layer component includes heat emission hole, thermal column and cooling stand, and the thermal column is plugged in heat emission hole
On, thermal column is fastened on by bayonet on cooling stand, and the cooling stand is with pcb board body bottom portion against the electronics is first
Device includes output unit, decoding unit and data buffer storage unit, they are all mounted on pcb board ontology, the bus marco
Link slot is fixed on pcb board ontology side, and the device is novel in design, carries the heat dissipating layer component of novel designs, can greatly improve
The radiating efficiency of snap-gauge can make the function that can be used when certain non-linear editings or effect accelerate wash with watercolours using non-volume clip type
Dye or even real-time rendering.
Further, the output unit includes analog video output module and analogue audio frequency output module, the simulation
Video Output Modules are mounted on analogue audio frequency output module side.The video in video file can be carried out with audio simultaneously real-time
Output.
Further, it is additionally provided with serial PCB on the pcb board ontology and turns parallel PCI module.Serially (chuan xing) is
The abbreviation of Chinese " universal serial bus ".English be USB (Universal Serial Bus) be nineteen ninety-five Microsoft,
A kind of new PC serial communication protocols that the companies such as Compaq, IBM joint is formulated.Usb protocol obtains each PC manufacturers, core after putting into effect
The extensive support of piece manufacturer and PC peripherals manufacturers.During USB itself is also at continuous development and improves, from originally 0.7,
0.8 widely used till now 1.0, it 1.1,2.0 versions and has been used, i.e., it is 3.0 versions applied by volume production are serial
Data and parallel data are opposite a pair of of concepts.Serial data refers to that each data bit is transmitted in order in transmission process
Data, parallel data are then each data bit while the data of transmission.Serial communication refers to using a data line, by data one
One ground transmits successively, each data occupies a regular time length.It only needs the several lines can be
Exchange information between system, the telecommunication being especially used between computer and computer, computer and peripheral hardware, data parallel
It is meant that in computer to include one group of processing unit (PE), each processing unit stores (or multiple) data element.When
When machine executes sequential programme, it can correspond to the data that all or part of interior processing unit is deposited while operating, data level
Parallel processor is depended on parallel, it belongs to parallel in SIMD system.The characteristics of parallel processor is to repeat to be arranged many
Same processing unit is connected with each other according to certain mode, under unified control unit effect, respectively to distributing the number come
According to concurrently completing to operate as defined in same instruction, control unit is actually a high performance uniprocessor, it executes control
The operational order of serial process is instructed and be only applicable to, and the instruction suitable for parallel processing is sent to processing list used
Member, but only those processing units for being in " activity " state just concurrently carry out same operation to respective data.For reality
Now quickly and effectively data processing, data should throughout manage reasonable distribution and storage between unit, keep each processing unit mainly right
Data in memory carry out operation.
Further, the data buffer storage unit includes data cached library module and startup threading models, the caching number
It is mounted on according to library module and starts threading models side.
Further, communication control module is additionally provided on the pcb board ontology, communication control module has six big effects,
First is to provide the electric interfaces with data circuit and with host；Second be according to serial-parallel conversion principle, will be in data circuit
Serial bit stream be assembled into character, or in turn, by character disassembly at serial bit stream；Third is the data transmission on circuit
The transformation of rate and host transfer rate；4th is the transformation of transmission code and host internal code；5th is to execute transmission control
Regulation processed, such as data communication Basic Mode Control Procedures (BMCP), high-level data link control procedure etc.；6th is the detection of transmission error
And correction, such as vertical-horizontal even-odd check, cyclic redundancy checks etc..
Further, when the decoding unit includes videodataclus tearing module, timing code generation memory module and LTC
Between code receiving module, the timing code occurs memory module one end and connect with videodataclus tearing module, the other end and LTC times
Code receiving module connection.Memory module occurs for timing code in the predetermined amount of time after each reference video frame starts, if
The LTC timing codes of the LTC timing codes receiving module input are had received, then memory module occurs for timing code by current time code
Value be updated to the LTC timing codes of input, so that memory is written as the timing code of this frame video in vision signal, wherein every
It is determined by vertical synchronizing signal at the beginning of one reference video frame, predetermined amount of time is determined by horizontal synchronizing signal.
Further, video output interface, audio output interface, the video are additionally provided on the bus marco link slot
Output interface is electrically connected with Video Output Modules, and audio output interface is electrically connected with audio output module.Support 2 road left and right acoustic channels
Mixed design, output optional 1. left and right acoustic channels of both of which export 2.2 road left and right acoustic channels synthesis outputs respectively.By patchcord,
It can coordinate with digital interface card, SDI interfaces are provided.
Further, it is additionally provided with USB interface on the pcb board ontology.There is corresponding USB connections electricity on USB interface
Road component.
Compared with prior art, the advantageous effect of technical solutions of the utility model is：
(1) the special non-volume video frequency collection card of subway disclosed by the utility model, the device is novel in design, carries novel designs
Heat dissipating layer component, the radiating efficiency of snap-gauge can be greatly improved, using non-volume clip type, meeting when can make certain non-linear editings
The function or effect used accelerates rendering or even real-time rendering.
(2) the special non-volume video frequency collection card of subway disclosed by the utility model supports 2 road left and right acoustic channels Mixed designs, defeated
Go out optional 1. left and right acoustic channels of both of which and exports 2.2 road left and right acoustic channels synthesis outputs respectively.By patchcord, can be connect with number
Mouth card cooperation, provides SDI interfaces.
(3) the special non-volume video frequency collection card of subway disclosed by the utility model is additionally provided with limiter, can be simultaneously to video text
Video in part is exported in real time with audio.
(4) the special non-volume video frequency collection card of subway disclosed by the utility model, low production cost are suitble to mass production.
Description of the drawings
Fig. 1 is the special non-overall structure diagram for compiling video frequency collection card of subway in the utility model；
Fig. 2 is the special non-heat dissipating layer element structure schematic diagram for compiling video frequency collection card of subway in the utility model.
In Fig. 1-2,1 be pcb board ontology, 2 be location hole, 3 be heat dissipating layer component, 4 be output unit, 5 be decoding unit,
6 be data buffer storage unit, 7 be communication control module, 8 be USB connection circuit component, 9 be USB interface, 10 be bus marco connect
Access slot, 11 be video output interface, 12 be audio output interface, 13 be thermal column, 14 be heat emission hole, 15 be cooling stand.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodiment
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also be to be indirectly connected with by intermediary, it can be with
Say the connection inside two elements.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
The concrete meaning of the utility model.The technical solution of the utility model is done further with reference to the accompanying drawings and examples
It is bright.
As shown in Figs. 1-2, the special non-volume video frequency collection card of a kind of subway, including pcb board ontology 1, be mounted on pcb board ontology
On location hole 2, further include heat dissipating layer component 3, electronic component and bus marco link slot 10, heat dissipating layer component includes heat dissipation
Hole 14, thermal column 13 and cooling stand 15, thermal column is plugged on heat emission hole, and thermal column is fastened on cooling stand by bayonet
On, cooling stand is with pcb board body bottom portion against electronic component includes output unit 4, decoding unit 5 and data buffer storage list
Member 6, they are all mounted on pcb board ontology, and bus marco link slot is fixed on pcb board ontology side, and the device is novel in design,
Heat dissipating layer component with novel designs, can greatly improve the radiating efficiency of snap-gauge, using non-volume clip type, can make certain non-
The function or effect that can be used when linear editing accelerate rendering or even real-time rendering.Output unit includes analog video output mould
Block and analogue audio frequency output module, analog video output module are mounted on analogue audio frequency output module side.It can be simultaneously to video
Video in file is exported in real time with audio.It is additionally provided with serial PCB on pcb board ontology and turns parallel PCI module.Serially
(chuan xing) is the abbreviation of Chinese " universal serial bus ".English is that USB (Universal Serial Bus) is 1995
A kind of new PC serial communication protocols that the companies such as year Microsoft, Compaq, IBM joint is formulated.Usb protocol obtains after putting into effect
To the extensive support of each PC manufacturers, chip manufacturer and PC peripherals manufacturers.During USB itself is also at continuous development and improves,
From originally 0.7,0.8 widely used till now 1.0,1.1,2.0 versions and be used, i.e., will be applied by volume production
3.0 version serial datas and parallel data are opposite a pair of of concepts.Serial data refer in transmission process each data bit by suitable
The data that sequence is transmitted, parallel data are then each data bit while the data of transmission.Serial communication refers to using a data
Line transmits on one ground of data successively, each data occupies a regular time length.It only needs several
Line can exchange information between system, especially be used in remote logical between computer and computer, computer and peripheral hardware
Letter, data parallel are meant that in computer to include one group of processing unit (PE), each processing unit store one it is (or more
It is a) data element.When machine executes sequential programme, it is same to can correspond to the data that all or part of interior processing unit is deposited
When operate, data level parallel depend on parallel processor, it belongs to parallel in SIMD system.The characteristics of parallel processor is weight
Many same processing units are set again, are connected with each other according to certain mode, under unified control unit effect, respectively
To completing to operate as defined in same instruction with distributing the data parallel come, control unit is actually a high-performance list processing
Machine, it executes control instruction and is only applicable to the operational order of serial process, and the instruction suitable for parallel processing is sent to
Processing unit used, but it is just concurrently same to the progress of respective data to only have processing units that those are in " activity " state
Operation.In order to realize that quickly and effectively data processing, data should throughout manage reasonable distribution and storage between unit, make each processing
Unit mainly carries out operation to the data in memory.Data buffer storage unit includes data cached library module and startup thread
Module, data cached library module, which is mounted on, starts threading models side.It is additionally provided with communication control module 7 on pcb board ontology, communicates
Control module has six big effects, and first is to provide the electric interfaces with data circuit and with host；Second is become according to serial parallel
Principle is changed, the serial bit stream in data circuit is assembled into character, or in turn, by character disassembly at serial bit stream；The
Third, the transformation of the message transmission rate and host transfer rate on circuit；4th is the change of transmission code and host internal code
It changes；5th is to execute transmission control procedure, such as data communicate Basic Mode Control Procedures (BMCP), high-level data link control procedure etc.；
6th is detection and correction of transmission error, such as vertical-horizontal even-odd check, cyclic redundancy checks etc..Decoding unit includes video
Memory module and LTC timing code receiving modules occur for separated in synchronization module, timing code, and timing code occurs memory module one end and regards
Frequency separated in synchronization module connects, and the other end is connect with LTC timing code receiving modules.Memory module occurs for timing code in each ginseng
It examines in the predetermined amount of time after video frame starts, if having received the LTC times of the LTC timing codes receiving module input
Code, then the LTC timing codes that the value of current time code is updated to input by timing code generation memory module, so as to as vision signal
Memory is written in the timing code of middle frame video, wherein it is determined by vertical synchronizing signal at the beginning of each reference video frame,
Predetermined amount of time is determined by horizontal synchronizing signal.Video output interface 11 is additionally provided on bus marco link slot, audio output connects
Mouth 12, video output interface is electrically connected with Video Output Modules, and audio output interface is electrically connected with audio output module.Support 2
Road left and right acoustic channels Mixed design, output optional 1. left and right acoustic channels of both of which export 2.2 road left and right acoustic channels synthesis outputs respectively.It is logical
Patchcord is crossed, can coordinate with digital interface card, SDI interfaces are provided.USB interface 9 is additionally provided on pcb board ontology.On USB interface
Also corresponding USB connection circuit component.
In figure, description position relationship only for illustration, should not be understood as the limitation to this patent；Obviously, this reality
It is only intended to clearly illustrate the utility model example with novel above-described embodiment, and is not to the utility model
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all new in this practicality
All any modification, equivalent and improvement etc., should be included in the utility model right and want made by within the spirit and principle of type
Within the protection domain asked.
Claims (8)
1. a kind of special non-volume video frequency collection card of subway, including pcb board ontology, the location hole on pcb board ontology, special
Sign is, further includes heat dissipating layer component, electronic component and bus marco link slot, the heat dissipating layer component include heat emission hole,
Thermal column and cooling stand, the thermal column are plugged on heat emission hole, and thermal column is fastened on by bayonet on cooling stand, described
Cooling stand is with pcb board body bottom portion against the electronic component includes output unit, decoding unit and data buffer storage list
Member, they are all mounted on pcb board ontology, and the bus marco link slot is fixed on pcb board ontology side.
2. the special non-volume video frequency collection card of subway according to claim 1, which is characterized in that the output unit includes mould
Quasi- Video Output Modules and analogue audio frequency output module, the analog video output module are mounted on by analogue audio frequency output module
Side.
3. the special non-volume video frequency collection card of subway according to claim 1, which is characterized in that on the pcb board ontology also
Turn parallel PCI module equipped with serial PCB.
4. the special non-volume video frequency collection card of subway according to claim 1, which is characterized in that the data buffer storage unit packet
It includes data cached library module and starts threading models, the data cached library module, which is mounted on, starts threading models side.
5. the special non-volume video frequency collection card of subway according to claim 1, which is characterized in that on the pcb board ontology also
Equipped with communication control module.
6. the special non-volume video frequency collection card of subway according to claim 1, which is characterized in that the decoding unit includes regarding
Memory module and LTC timing code receiving modules occur for frequency separated in synchronization module, timing code, and memory module one occurs for the timing code
End is connect with videodataclus tearing module, and the other end is connect with LTC timing code receiving modules.
7. the special non-volume video frequency collection card of subway according to claim 1, which is characterized in that the bus marco link slot
On be additionally provided with video output interface, audio output interface, the video output interface is electrically connected with Video Output Modules, and audio is defeated
Outgoing interface is electrically connected with audio output module.
8. the special non-volume video frequency collection card of subway according to claim 1, which is characterized in that on the pcb board ontology also
Equipped with USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721909503.6U CN207835580U (en) | 2017-12-30 | 2017-12-30 | The special non-volume video frequency collection card of subway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721909503.6U CN207835580U (en) | 2017-12-30 | 2017-12-30 | The special non-volume video frequency collection card of subway |
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| Publication Number | Publication Date |
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| CN207835580U true CN207835580U (en) | 2018-09-07 |
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| CN201721909503.6U Active CN207835580U (en) | 2017-12-30 | 2017-12-30 | The special non-volume video frequency collection card of subway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367462A (en) * | 2020-10-29 | 2021-02-12 | 北京达佳互联信息技术有限公司 | Shooting method, shooting device, electronic equipment and storage medium |
-
2017
- 2017-12-30 CN CN201721909503.6U patent/CN207835580U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367462A (en) * | 2020-10-29 | 2021-02-12 | 北京达佳互联信息技术有限公司 | Shooting method, shooting device, electronic equipment and storage medium |
| CN112367462B (en) * | 2020-10-29 | 2022-04-22 | 北京达佳互联信息技术有限公司 | Shooting method, shooting device, electronic equipment and storage medium |
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