CN209183247U - A kind of LED display control unit - Google Patents
A kind of LED display control unit Download PDFInfo
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- CN209183247U CN209183247U CN201821825116.9U CN201821825116U CN209183247U CN 209183247 U CN209183247 U CN 209183247U CN 201821825116 U CN201821825116 U CN 201821825116U CN 209183247 U CN209183247 U CN 209183247U
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- card
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- output port
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Abstract
A kind of LED display control unit, including LED controller, sending card, plural number receive card and LED display, LED controller are connect with sending card；Sending card is set there are two output port, reception is arranged with two network ports and a video data output port, the video data output port display cut section corresponding with card is received for receiving card connects, each reception card is sequentially connected end to end by the network port, sending card receives the idle network ports of card by two output ports with two of head and the tail respectively and connect, the network port for receiving card can free switching be input port or output port.Since sending card is set there are two output port, two output ports, even if the connecting line received between card disconnects, make LED display remain to normally show, the reliability of improve data transfer respectively from the both ends input data for receiving card link by port switching state.
Description
Technical field
This application involves technical field of LED display, and in particular to a kind of LED display control unit.
Background technique
With the development of the times, information propagation market is increasing, to the need of LED screen under the promotion that information propagates market
Ask more and more.And LED screen with the splicing of its mould group flexibly, area can arbitrary size, brightness is high, and visibility is wide, answers in practice
Also more and more extensive.
When receiving the connecting line between card because loosening or disconnecting, the reception cacaine that will cause the junction rear end cannot be normal
Data are received, LED display is caused not show normally.And mounted outdoor-screen, the position in most cases installed compared with
Height, so that investigation maintenance is very inconvenient.
Summary of the invention
The application provides a kind of LED display control unit, to enhance the reliability of data transmission.
According in a first aspect, provide a kind of LED display control unit in a kind of embodiment, including LED controller, send
Card, plural number receive card and LED display, LED controller are connect with sending card, and LED display is divided into a plurality of displays
Cut section, display cut section are corresponded with reception card, each, which receives to block to drive, lights a display cut section；Sending card is set
There are two output port, reception is arranged with two network ports and a video data output port, receives the video data of card
Output port display cut section corresponding with card is received connects, and each reception card is sequentially connected end to end by the network port, sends
Card receives the idle network port of card with two of head and the tail respectively by two output ports and connect, the network-side for receiving card
Mouthful can free switching be input port or output port.
Preferably, the reception card is also used to detect transmission state of the video data in port, according to video data
Port switching is input port or output port by transmission state.
According to the LED display control unit of above-described embodiment, since sending card is set, there are two output port, two output ends
Mouth, even if the connecting line received between card disconnects, is not received by data respectively from the both ends input data for receiving card link
Input port can be switched to for original output port with the input/output state of handover network port by receiving card, originally defeated
Inbound port is switched to output port, thus guarantee that LED display remains to normally show, the reliability of improve data transfer.
Detailed description of the invention
Fig. 1 is the functional block diagram of an embodiment LED control device；
Fig. 2 is the data transmission link figure of another embodiment LED control device；
Fig. 3 is the data transmission link figure after embodiment illustrated in fig. 2 data connecting line disconnects.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.Wherein different embodiments
Middle similar component uses associated similar element numbers.In the following embodiments, many datail descriptions be in order to
The application is better understood.However, those skilled in the art can recognize without lifting an eyebrow, part of feature
It is dispensed, or can be substituted by other elements, material, method in varied situations.In some cases, this Shen
Please it is relevant it is some operation there is no in the description show or describe, this is the core in order to avoid the application by mistake
More descriptions are flooded, and to those skilled in the art, these relevant operations, which are described in detail, not to be necessary, they
Relevant operation can be completely understood according to the general technology knowledge of description and this field in specification.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).
Referring to FIG. 1, LED display control unit, comprising: LED controller, sending card, N reception cards and LED are shown
Shield, connected between each section by data connecting line, sending card is connected by HDMI interface with LED controller, and sending card is same
When be connected also by the network port with card is received, sending card is by the data obtained at LED controller by under the network port
Reception card is issued, after reception card receives the data that sending card transmits by the network port, data are passed through into another network-side
Mouth is sent to next Zhang Jiashou card, while also exporting corresponding video data to LED display, drives LED display normal
It lights.
LED display is divided into a plurality of display cut sections, and display cut section and reception card correspond, each reception
A display cut section is lighted in card driving；Sending card is set there are two output port, and reception is arranged with two network ports and one
Video data output port, the video data output port display cut section corresponding with card is received for receiving card connect, Ge Gejie
It receives card to be sequentially connected end to end by the network port, sending card is blocked with two receptions of head and the tail idle respectively by two output ports
The network port connection, it is described receive card the network port can free switching be input port or output port.Sending card passes through
Two output ports receive the idle network port of card with two of head and the tail respectively and connect.
Upgrade command, lamp plate information, video data, various instructions are sent to by LED controller by data connecting line
Card feed is sent to reception card after being processed these data by sending card, be finally sent to LED display by reception card and show,
Constitute a complete system.Block in sending card and receiving, receives card and receive all there are two data transmission port between card, lead to
Data connecting line connection is crossed, realizes the purpose of data transmission.Multiple reception cards are connected by cascade mode, adjacent reception card
Signal input port is connect with signal output port, each video data for receiving card and being respectively derived from own part, defeated from video data
Exit port exports video data and drives corresponding display cut section.
Two output port U and D of sending card send data to receiving card 1 and receive card N simultaneously, then receive card 1 to
2 forwarding data of card are received, card N is received to card N-1 is received and sends data, contrary a, side for two port transmission data
The U oral instructions transmission of data of Xiang Weicong sending card is transferred to the port A for receiving card 2 to the port A for receiving card 1, the port B for receiving card 1
It is in turn connected to form a loop.And another direction is then that the port B for receiving card N is defeated by by the D oral instructions of sending card, by receiving
The port A of card N is transmitted to the port B and so on for receiving card " N-1 ", and the data in which direction first reach reception card, receive card
Then receive the data of which direction transmission.Such as in receiving card 2, it is next that reception card 2 may first receive reception card 1 port B transmission
Data, then receive card 1 port A be input port, receive card 1 port B be output port；And if receiving card 1 first
It receives and receives the data that card 2 port A transmission comes, then the port A and port B that receive card 1 are input port.
That is, input port or output port can be switched to by receiving the network port of card.Receiving card can detection data
Transmission state in the network port, according to the transmission state of data by the network port from output state be switched to input state or
Input state is switched to output state.Referring to FIG. 2, the network port A for receiving card 3 is enabled first to receive 2 network port B of reception card
The data that transmission comes, the end network port B for receiving card 3 also have from the network port A video data input for receiving card 4, this state
Lower data are from the network port A input for blocking 1 is received, from the network port B output for receiving card 1, then the network port from reception card 2
A input, from the network port B output for receiving card.Referring again to Fig. 3, it is assumed that receive card 1 and receive between card 2 due to data connection
Line disconnects, then receiving the network port A and network port B of card 2 at this time, the network port A for receiving card 3 is defeated without data
Enter, these three network ports are switched to output port from original input port or cut the port from original output port
It is changed to input port, i.e., the network port B for receiving card 2 is switched to input port from output port, receives the network port of card 3
A is switched to output port from input port, can receive data from card 4 is received after receiving the network port state change of card 3,
And forward the data to reception card 2.
The switching for receiving card network port state can be controlled by receiving the chip of card, in one embodiment, if
Determining input port is 0, output port 1, when reception card detects that the network port does not have data input, the network port is original
" 0 " be set to " 1 ", port original " 1 " is set to " 0 ".
Two paths of data is detected in conclusion receiving card, according to data transmission state switching channel, when data are transmitted
When occurring the transmission fault of a direction in link, data input output ports can be automatically switched by receiving card, receive other direction
The data that transmission comes, to guarantee normal display.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (2)
1. a kind of LED display control unit, characterized by comprising: LED controller, sending card, plural number receive card and LED
Display screen, LED controller are connect with sending card, and LED display is divided into a plurality of display cut sections, display cut section and reception
Card corresponds, each receives card driving and lights a display cut section；Sending card is set there are two output port, is received card and is set
There are two the network port and a video data output port, the video data output port for receiving card is corresponding with card is received aobvious
Show that cut section connects, each receptions card is sequentially connected end to end by the network port, sending card pass through two output ports respectively with
Two of head and the tail receive the idle network ports connection of card, the network port for receiving card can free switching be input port or
Output port.
2. LED display control unit as described in claim 1, which is characterized in that the reception card is also used to detect video counts
It by port switching is input port or output port according to the transmission state of video data according to the transmission state in port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821825116.9U CN209183247U (en) | 2018-11-07 | 2018-11-07 | A kind of LED display control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821825116.9U CN209183247U (en) | 2018-11-07 | 2018-11-07 | A kind of LED display control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209183247U true CN209183247U (en) | 2019-07-30 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821825116.9U Active CN209183247U (en) | 2018-11-07 | 2018-11-07 | A kind of LED display control unit |
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| CN (1) | CN209183247U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341247A (en) * | 2019-07-31 | 2020-06-26 | 深圳市晶泓科技有限公司 | Drive chip, LED lamp and LED display screen |
| CN112583995A (en) * | 2020-12-21 | 2021-03-30 | 杭州视芯科技有限公司 | LED display system and data communication method |
| CN114519970A (en) * | 2020-11-18 | 2022-05-20 | 西安诺瓦星云科技股份有限公司 | Network topology identification method and LED display screen control system |
| US11568792B2 (en) | 2020-12-18 | 2023-01-31 | Novatronics Co., Limited | Driver chip, LED lamp and LED display screen |
-
2018
- 2018-11-07 CN CN201821825116.9U patent/CN209183247U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341247A (en) * | 2019-07-31 | 2020-06-26 | 深圳市晶泓科技有限公司 | Drive chip, LED lamp and LED display screen |
| CN114519970A (en) * | 2020-11-18 | 2022-05-20 | 西安诺瓦星云科技股份有限公司 | Network topology identification method and LED display screen control system |
| US11568792B2 (en) | 2020-12-18 | 2023-01-31 | Novatronics Co., Limited | Driver chip, LED lamp and LED display screen |
| CN112583995A (en) * | 2020-12-21 | 2021-03-30 | 杭州视芯科技有限公司 | LED display system and data communication method |
| CN112583995B (en) * | 2020-12-21 | 2022-01-04 | 杭州视芯科技股份有限公司 | LED display system and data communication method |
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