CN205487273U - Led display screen control system and scanning card - Google Patents
Led display screen control system and scanning card Download PDFInfo
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- CN205487273U CN205487273U CN201620112238.8U CN201620112238U CN205487273U CN 205487273 U CN205487273 U CN 205487273U CN 201620112238 U CN201620112238 U CN 201620112238U CN 205487273 U CN205487273 U CN 205487273U
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Abstract
The utility model relates to a scanning card and the LED display screen control system who adopts this kind of scanning card. Wherein, scanning card is applicable to the connection and for example connects with the electricity through winding displacement interface connection LED display screen and including programmable logic device programmable logic device's dynamic RAM). Specifically, the scanning card still includes a plurality of triaxial cable connector, and the electricity is connected programmable logic device, consequently, work as when LED display screen control system was applied to to the scanning card, it was connected through the coaxial cable with front end LED display controller to can overcome and become flexible the unstable problem of signal transmission that leads to when prior art scanning card adopts the RJ45 interface because of the interface is easy.
Description
Technical field
This utility model relates to LED display control technology field, shows particularly to a kind of LED
Screen control system and a kind of scanning card.
Background technology
See Fig. 1, traditional LED display screen system be by host computer, LED display controller,
Scanning card and LED display are constituted.First, host computer such as PC end installation system is special
Control software and realize associative operation, USB prevailing transmission control signal, DVI prevailing transmission video counts
The number of it is believed that.Host computer is communicated by USB with DVI and LED display controller, and LED shows control
Scanning card is passed to by network interface and netting twine after device processing controls signal processed, DVI video data signal,
Network interface uses RJ45 interface；The LED lamp panel that scanning card carries with its band is connected by winding displacement.
For LED display industry, signal transmission instability directly can badly influence the experience of client,
And RJ45 draw-in groove easily loosens and can produce serious influence the stability of product to a great extent.
Owing to whole system shown in Fig. 1 is a unidirectional path, in path, which link is out of joint
LED display will be caused normally not show.
Additionally, in terms of transfer rate, traditional gigabit network interface maximum can only transmit 1G Bytes's
Quantity of information, it causes a network interface can only carry 655360 pixels by band.If needing band to carry one
The LED display of 1920*1080 resolution, it is necessary to use four network interfaces to carry out band load (such as Fig. 2
Shown in).Because the complexity of data transmission link itself may result in links and is likely to appearance
Problem, and each network interface uses RJ45 interface equally, and it can be because RJ45 self be unstable
Defect injure product signal transmission, stability is difficult to ensure that, affects Consumer's Experience.
Seeing Fig. 3 and Fig. 4, it is that the LED with back mechanism proposed in prior art shows
Screen system.Back mechanism is mainly applied in the occasion higher to display screen stability requirement, than
Such as scenes such as momentous conference, television stations.First the existence of back mechanism is necessary, but
The back mechanism operation being current system is more complicated, simultaneously need to connect and upper on hardware
Machine software is arranged above with, because link is the most, so any one link fails all can be led
Pyrogenicity backup setting goes wrong.From the most traditional back mechanism it can be seen that backup company
It is more complicated for connecing, if it is possible to backup being simplified on connect, this is by highly beneficial
In the popularization of backup functionality, bigger market prospect the most also can be obtained.
Utility model content
Therefore, for defect of the prior art and deficiency, the utility model proposes a kind of LED and show
Display screen control system and a kind of scanning card.
Specifically, a kind of LED display control system that one embodiment of this utility model proposes,
Including LED display controller and the scanning card of the described LED display controller of connection.Wherein, institute
State scanning card and be provided with multiple connectors for coaxial cables, thus described LED display controller is with described
Scanning card is connected by coaxial cable.
In an embodiment of the present utility model, the quantity of described scanning card is multiple and described many
Individual scanning card is cascaded by coaxial cable；The delivery outlet of the first passage of described LED display controller
The described connectors for coaxial cables that the first order scanning connected in cascade by coaxial cable is blocked,
And the input port of described first passage connects most end one-level scanning card in cascade by coaxial cable
One described connectors for coaxial cables.
In an embodiment of the present utility model, the second channel of described LED display controller
Another described coaxial cable that delivery outlet connects described first order scanning card by coaxial cable connects
Device, and the input port of described second channel by coaxial cable connect described most end one-level scanning card
Another described connectors for coaxial cables；Wherein, described first passage is main channel, described second
Passage is alternate channel.
In an embodiment of the present utility model, the described delivery outlet of described first passage and described
Input port and the described delivery outlet of described second channel and described input port are bnc connector.
In an embodiment of the present utility model, the plurality of connectors for coaxial cables is respectively many
Individual SMA adapter or multiple SMB adapter.
In an embodiment of the present utility model, described scanning card is additionally provided with programmable logic device
Part, dynamic RAM, equalizer, driver, micro-control unit, nonvolatile memory
And winding displacement interface；Described dynamic RAM electrically connects described PLD, described
It is defeated that equalizer is connected electrically in described PLD and the plurality of connectors for coaxial cables
Enter with between connectors for coaxial cables, described driver be connected electrically in described PLD and
Between output connectors for coaxial cables in the plurality of connectors for coaxial cables, described microcontroller
Unit is connected electrically between described PLD and described nonvolatile memory, described row
Line interface electrically connects described PLD.
Additionally, a kind of scanning card that another embodiment of this utility model proposes, it is adaptable to connect
LED display and include PLD and electrically connect the dynamic of described PLD
State random access memory.Additionally, described scanning card also includes multiple connectors for coaxial cables, electrical connection
Described PLD.
In an embodiment of the present utility model, the plurality of connectors for coaxial cables includes first
Connectors for coaxial cables and the second connectors for coaxial cables, described scanning card also includes equalizer and drives
Dynamic device；Described equalizer is connected electrically in described first connectors for coaxial cables and described FPGA
Between device, described driver is connected electrically in described second connectors for coaxial cables and described able to programme
Between logical device.
In an embodiment of the present utility model, described scanning card also includes micro-control unit, sudden strain of a muscle
Depositing and winding displacement interface, described micro-control unit is connected electrically in described PLD and described sudden strain of a muscle
Between depositing, described winding displacement interface electrically connects described PLD.
In an embodiment of the present utility model, described scanning card is single circuit plate structure, and electricity
The a length of 78mm of road plate, width are 45mm.
From the foregoing, it will be observed that the scanning card structure of embodiment of the present utility model proposition and LED display control
System processed can reach following one or more beneficial effect: 1) size of scanning card is compared traditional
Scanning card is little a lot, and the trend that dot spacing is the least has been established excellent basis by this, permissible
Say it is to provide strong support for Small Distance LED display；2) scanning card uses exclusive same
Axis cable connector such as SMA adapter so that the stability of system transfers data carries further
Height, transfer rate the most significantly increases, it is possible to achieve the display delay of most 1 frames, this is to some
To postponing to require that extra high occasion provides strong guarantee；And 3) exclusive back mechanism,
The stability making system promotes further, simultaneously back mechanism be further optimized such that this is novel
Control system is more reasonable, reliably.
By the detailed description below with reference to accompanying drawing, other side of the present utility model and feature become
Substantially.It is understood that this accompanying drawing is only the purpose design explained rather than as this reality
Restriction by novel scope.It should also be noted that unless otherwise noted, it is not necessary to scale
Accompanying drawing, they only try hard to structure described herein and flow process are described conceptually.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.
Fig. 1 is the configuration diagram of a kind of LED display screen system of the prior art.
Fig. 2 is that a kind of multiple network interface bands using LED display controller of the prior art carry same
The system architecture schematic diagram of individual LED display.
Fig. 3 is of the prior art a kind of to utilize single LED display controller to realize back mechanism
The configuration diagram of LED display screen system.
Fig. 4 is that a kind of many LED of utilization display controller of the prior art realizes back mechanism
The configuration diagram of LED display screen system.
Fig. 5 is the frame of a kind of LED display screen system with back mechanism that the utility model proposes
Structure schematic diagram.
Fig. 6 is a kind of module diagram scanning card of proposition of the present utility model.
Detailed description of the invention
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below
In conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.
The following embodiment of this utility model is mainly for the prior art shown in Fig. 1 to Fig. 4
In the shortcoming mentioned be optimized, the problem of instability the most firm for RJ45 interface, employ
A kind of stable, reliable, connectors for coaxial cables such as SMA adapter of two-forty.Wherein,
SMA adapter is a kind of small-sized threaded coaxial cable interface, and it has bandwidth, performance
Excellent, highly reliable, the feature of life-span length；Wherein, small-sized threaded can ensure that interface is not easy
Loosen, it is ensured that the reliability of signal transmission；Bandwidth can ensure that the band of an interface carries energy
Power can match in excellence or beauty tradition 4 network interfaces load capacity.Additionally, the back mechanism of uniqueness, Ke Yibao
The property easy to use of barrier back mechanism.
Seeing Fig. 5, it is the framework of LED display screen system of an embodiment of the present utility model
Schematic diagram.In Figure 5, host computer 51 such as PC end uses upper computer software to control LED
Display controller 53 provides control signal and video signal for LED display controller 53,
Wherein control signal is such as transmitted by USB interface, RS233 serial ports or network interface, and video signal can
Being to be transmitted by the video interface such as DVI or HDMI, or transmitted by SDI interface.LED
Display controller 53 outputs data to scan card 55, and receiving card 55 band by the way of cascade carries
LED display 57.LED display controller 53 has two couples of SDI interface (Serial Digital
Interface, digital component serial line interface), it is divided into main channel and alternate channel (the most corresponding 1 right
SDI interface), the signal of two passage outputs is the same.It is provided with four SMA on scanning card 55
Adapter, two of which SMA adapter uses as input port, two other SMA adapter
Use as delivery outlet.The delivery outlet (OUT) of the main channel of LED display controller 53 is e.g.
Bnc connector (Bayonet Nut Connector), it is connected to the first of cascade by coaxial cable
SMA adapter is used in one input of level scanning card 55；Input port, main channel (IN) e.g. BNC
Adapter, it is used by an output of the most end one-level scanning card 55 that coaxial cable is connected to cascade
SMA adapter.Similarly, the delivery outlet (OUT) of the alternate channel of LED display controller 53
E.g. bnc connector, its first order scanning being connected to cascade by coaxial cable blocks 55
SMA adapter is used in another input, input port (IN) the e.g. bnc connector of alternate channel,
It is connected to another output SMA of the most end one-level scanning card 55 cascaded by coaxial cable
Adapter.Furthermore, each scanning card 55 is additionally provided with winding displacement interface, for by winding displacement even
Connect the LED lamp panel of LED display 57.So, by the connected mode shown in Fig. 5, whole
System has existed for back mechanism, and unlike before, the backup of native system is more efficient,
It can be appreciated that the input port of scanning card 55 and delivery outlet are as broad as long from Fig. 5, as long as
Ensure have a road input and road output to ensure that whole system normally works, it is achieved backup
Function, this is the improvement that the present embodiment is made on back mechanism.
Furthermore, the advantage that coaxial cable band is roomy is utilized for LED display controller 53, permissible
A pair bnc connector is used to replace the load capacity of 4 network interfaces in prior art, thus a pair
Bnc connector equally realizes the band of 1920*1080 resolution LED display and carries.Additionally,
For the selection of SMA adapter on scanning card 55, which ensure that the stability of seam signal,
In traditional control system scheme, network interface loosens problem and has obtained appropriate process.
It addition, it is noted that the LED display controller 53 shown in Fig. 5 and multiple cascade
The main composition of a kind of LED display control system that proposes as the present embodiment of scanning card 55,
The quantity of scanning card 55 therein does not limits, and it can also be multiple for can being one, particular number
In being applied by reality, the resolution sizes of the LED display 57 that institute's band carries determines, LED shows control
Device 53 processed can also be only by scanning card 55 and LED display control with the connected mode of scanning card 55
The input port (IN) of the main channel of device 53 processed and delivery outlet (OUT) connect and are not connected to alternate channel
Input port (IN) and delivery outlet (OUT) connect, say, that only make under some actual application scenarios
With the main channel of LED display controller 53, and LED shows under some other actual application scenarios
Show that main channel and the alternate channel of controller 53 are all used.
Seeing Fig. 6, it is the module diagram scanning card of an embodiment of the present utility model.
In figure 6, scanning card 55 includes: PLD 551, dynamic RAM 5522,
SMA adapter 553a-553d, equalizer (Equalizer) 554a and 554c, driver 554b and
554d, micro-control unit 555, SPI interface flash memory 556 and winding displacement interface 557.Scanning card
55 e.g. single circuit plate designs, and the longest 78mm of the size of circuit board and wide 45mm.
Wherein, PLD 551 e.g. FPGA (field programmable gate array)；Dynamically
Random access memory 552 electrically connects PLD 551 and its e.g. SDRAM；Equilibrium
Device 554a is connected electrically between input SMA adapter 553a and PLD 551,
Driver 554b is connected electrically in output SMA adapter 553b and PLD 551
Between, equalizer 554c is connected electrically in input SMA adapter 553c and programmable logic device
Between part 551, driver 554d is connected electrically in output SMA adapter 554d and able to programme
Between logical device 551；Micro-control unit (Microcontroller Unit) 555 is connected electrically in and can compile
Between journey logical device 551 and SPI interface flash memory 556；Winding displacement interface 557 electrically connects able to programme
Logical device 551, the winding displacement interface of its e.g. two 120pin.
Holding above-mentioned, the data from LED display controller 53 pass through SMA adapter such as 553a
Incoming scanning card 55, the receiver module of PLD 51 is being received by equalizer 554a
First being stored in after data in dynamic RAM 552, the data of PLD 51 process
Module can read data from dynamic RAM 552, and data have processed and have been then written to afterwards
In dynamic RAM 552, the display module of PLD 51 stores from dynamic random
Data that in device 552, reading process completes also export to winding displacement interface 557 to deliver to LED display
57, complete display.SPI interface flash memory 556 on scanning card 55 be such as used for storing lamp plate parameter,
The parameters such as correction coefficient.PLD 551 is such as by spi bus and micro-control unit
555 communications, micro-control unit 555 reads data by spi bus from SPI interface flash memory,
And make corresponding operation.Furthermore, micro-control unit 555 reads scanning card 55 in actual applications
Temperature, voltage etc. measures and monitoring data, afterwards by PLD 551 with drive
Device such as 554b or 554d is uploaded to the input port (IN) of LED display controller 53.
Finally, it is worth mentioning at this point that, the SPI interface flash memory 556 in the scanning card 55 shown in Fig. 6
Can also replace to other nonvolatile memories, SMA adapter 553a-553d can also replace
Become other connectors for coaxial cables such as SMB adapter, even bnc connector, be
The volume of bnc connector is relatively large.Furthermore, it is to be understood that for some particular demands,
Such as in order to reduce cost further, it is also possible to consider to omit the micro-control unit 555 of scanning card 55
With SPI interface flash memory 556.Additionally, discounting for configuration backup mechanism, scanning card 55
The quantity of SMA adapter can also reduce to two.
In sum, the aforementioned scanning card structure that the utility model proposes and LED display control system
System can reach following one or more beneficial effect: 1) size of scanning card compares traditional scanning
Blocking little a lot, the trend that dot spacing is the least has been established excellent basis by this, it may be said that be
Strong support is provided for Small Distance LED display；2) scanning card uses exclusive coaxial line
Cable connector such as SMA adapter so that the stability of system transfers data improves further,
Transfer rate the most significantly increases, it is possible to achieve the display delay of most 1 frames, and this is to postponing requirement
Extra high occasion provides strong guarantee；And 3) exclusive back mechanism so that system
Stability promote further, simultaneously back mechanism be further optimized such that this new control system
More reasonable, reliably.
The above, be only preferred embodiment of the present utility model, not to this utility model
Make any pro forma restriction, although this utility model is disclosed above with preferred embodiment, but
Being not limited to this utility model, any those skilled in the art, without departing from this practicality
In new technique aspects, when the technology contents of available the disclosure above makes a little change or repaiies
Decorations are the Equivalent embodiments of equivalent variations, as long as being without departing from technical solutions of the utility model content,
Any simple modification, the equivalent made above example according to technical spirit of the present utility model become
Change and modify, all still falling within the range of technical solutions of the utility model.
Claims (10)
1. a LED display control system, including LED display controller and the described LED of connection
The scanning card of display controller；It is characterized in that, described scanning card is provided with multiple coaxial cable even
Connect device, thus described LED display controller is connected by coaxial cable with described scanning card.
2. LED display control system as claimed in claim 1, it is characterised in that described in sweep
The quantity retouching card is that multiple and the plurality of scanning card is cascaded by coaxial cable；Described LED shows
The first order scanning that the delivery outlet of the first passage of controller is connected in cascade by coaxial cable blocks
One described connectors for coaxial cables, and the input port of described first passage connected by coaxial cable
One described connectors for coaxial cables of the most end one-level scanning card in cascade.
3. LED display control system as claimed in claim 2, it is characterised in that described
The delivery outlet of the second channel of LED display controller connects the described first order by coaxial cable and sweeps
Retouch another described connectors for coaxial cables of card, and the input port of described second channel is by coaxial
Cable connects another described connectors for coaxial cables of described most end one-level scanning card；Wherein, institute
Stating first passage is main channel, and described second channel is alternate channel.
4. LED display control system as claimed in claim 3, it is characterised in that described the
The described delivery outlet of one passage and described input port and the described delivery outlet of described second channel and institute
State input port and be bnc connector.
5. LED display control system as claimed in claim 1, it is characterised in that described many
Individual connectors for coaxial cables is respectively multiple SMA adapter or multiple SMB adapter.
6. LED display control system as claimed in claim 1, it is characterised in that described in sweep
Retouch card and be additionally provided with PLD, dynamic RAM, equalizer, driver, micro-
Control unit, nonvolatile memory and winding displacement interface；Described dynamic RAM electrically connects
Described PLD, described equalizer is connected electrically in described PLD and described
Between input connectors for coaxial cables in multiple connectors for coaxial cables, described driver is electrically connected
It is connected on the output coaxial line in described PLD and the plurality of connectors for coaxial cables
Between cable connector, described micro-control unit is connected electrically in described PLD and described non-
Between volatile memory, described winding displacement interface electrically connects described PLD.
7. a scanning card, it is adaptable to connect LED display and include PLD and electricity
Connect the dynamic RAM of described PLD；It is characterized in that, described scanning card
Including multiple connectors for coaxial cables, electrically connect described PLD.
Scan card the most as claimed in claim 7, it is characterised in that the plurality of coaxial cable is even
Connect device and include that the first connectors for coaxial cables and the second connectors for coaxial cables, described scanning card also wrap
Include equalizer and driver；Described equalizer is connected electrically in described first connectors for coaxial cables and institute
Stating between PLD, described driver is connected electrically in described second connectors for coaxial cables
And between described PLD.
Scan card the most as claimed in claim 8, it is characterised in that described scanning card also includes micro-
Control unit, flash memory and winding displacement interface, described micro-control unit is connected electrically in described FPGA
Between device and described flash memory, described winding displacement interface electrically connects described PLD.
Scan card the most as claimed in claim 7, it is characterised in that described scanning card is single circuit
Plate structure, and a length of 78mm of circuit board, width be 45mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620112238.8U CN205487273U (en) | 2016-02-03 | 2016-02-03 | Led display screen control system and scanning card |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620112238.8U CN205487273U (en) | 2016-02-03 | 2016-02-03 | Led display screen control system and scanning card |
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| CN205487273U true CN205487273U (en) | 2016-08-17 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652892A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | LED lamp panel module |
| CN106652894A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Led display screen control system |
| CN106652895A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN106652893A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Led display screen control system |
| CN106652897A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Led display screen control system |
| CN106652896A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN109215565A (en) * | 2018-09-21 | 2019-01-15 | 华中科技大学 | A kind of reception card, data storage dispatching method and LED display control program |
| CN109256084A (en) * | 2018-10-29 | 2019-01-22 | 深圳市摩西尔电子有限公司 | It can cascade LED display control card, the cascade control method of realization and HDMI signal processing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652897B (en) * | 2016-12-26 | 2019-08-23 | 西安诺瓦星云科技股份有限公司 | LED display control system |
| CN106652893B (en) * | 2016-12-26 | 2019-01-29 | 西安诺瓦电子科技有限公司 | LED display control system |
| CN106652895A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN106652893A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Led display screen control system |
| CN106652892B (en) * | 2016-12-26 | 2019-12-24 | 西安诺瓦星云科技股份有限公司 | LED lamp panel module |
| CN106652896A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN106652894A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Led display screen control system |
| CN106652894B (en) * | 2016-12-26 | 2018-11-30 | 西安诺瓦电子科技有限公司 | LED display control system |
| CN106652897A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Led display screen control system |
| CN106652895B (en) * | 2016-12-26 | 2019-01-29 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN106652892A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | LED lamp panel module |
| CN106652896B (en) * | 2016-12-26 | 2019-02-26 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN109215565A (en) * | 2018-09-21 | 2019-01-15 | 华中科技大学 | A kind of reception card, data storage dispatching method and LED display control program |
| CN109215565B (en) * | 2018-09-21 | 2020-07-10 | 华中科技大学 | Receiving card and L ED display control system |
| CN109256084A (en) * | 2018-10-29 | 2019-01-22 | 深圳市摩西尔电子有限公司 | It can cascade LED display control card, the cascade control method of realization and HDMI signal processing method |
| CN109256084B (en) * | 2018-10-29 | 2023-11-14 | 深圳市摩西尔电子有限公司 | Cascade LED display screen control card, control method for realizing cascade connection and HDMI signal processing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
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Address after: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: 710075 No. 201, Zone D, qinfengge, Xi'an Software Park, No. 68, Keji 2nd Road, high tech Zone, Xi'an City, Shaanxi Province Patentee before: Xi'an NovaStar Tech Co.,Ltd. |