CN112445445B - Screen matching method and device, system controller and LED display - Google Patents
Screen matching method and device, system controller and LED display Download PDFInfo
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- CN112445445B CN112445445B CN201910808359.4A CN201910808359A CN112445445B CN 112445445 B CN112445445 B CN 112445445B CN 201910808359 A CN201910808359 A CN 201910808359A CN 112445445 B CN112445445 B CN 112445445B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
- G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The embodiment of the invention relates to a screen matching method which is applied to an LED display and comprises the following steps: receiving a screen allocation instruction input by a user; responding to the screen allocation instruction to generate an information acquisition signal, a picture display signal and a wiring mode signal; responding to the information acquisition signal to acquire the resolution of the plurality of LED modules and the LED modules carried by the plurality of output ports respectively through the plurality of output ports; transmitting a picture display signal to a module controller of the LED modules through the plurality of output ports so as to control the LED modules to display a preset picture; and obtaining the position coordinate information of each LED module according to the wiring mode signal, the resolution of the plurality of LED modules and the LED modules respectively carried by the plurality of output ports. The embodiment of the invention also provides a screen matching device, a system controller and an LED display related to the screen matching method. The embodiment of the invention has the technical effects of simplifying screen matching operation and being simple and convenient to apply.
Description
Technical Field
The invention relates to the technical field of display, in particular to a screen matching method, a screen matching device, a system controller and an LED display.
Background
The LED (Light Emitting Diode ) display screen system is used as a novel display technology, and is gradually accepted by the market with the advantages of energy saving, environmental protection, highlighting and the like, so that the LED display screen system is widely applied to various fields of urban media, urban traffic and the like. In recent years, with the development of LED display technology and market demands, large-screen LED displays such as LED conference screens have been gradually put into the market.
Typically, the LED conference screen adopts a mode of splicing LED modules to form a large screen, and the common resolution specifications of the LED modules are 128×128, 320×480, 480×360 and the like; meanwhile, the module controllers (such as receiving cards) among the LED modules are spliced by gigabit network ports, and the display control cards (such as sending cards) transmit video sources to the module controllers of the LED modules through the network ports, so that a complete LED conference screen is formed. For example, when an LED conference screen with 1920×1080 resolution is formed and 480×360LED modules are assembled, the splicing manner shown in fig. 1 is adopted, that is, each output port of the display control card TC carries the same number of LED modules (each LED module is configured with a module controller RC), and the routing manner of all the LED modules carried by the same output port is a conventional manner, for example, from top to bottom. Furthermore, configuration parameters corresponding to the 3-row and four-column LED module splicing mode shown in FIG. 1 are stored in a display control card TC, and the display control card TC outputs a video source to a module controller RC according to a preset splicing mode; the predetermined splicing mode is called as a screen matching mode. The existing screen matching is that the display control card TC performs screen matching through a communication interface (such as a serial port, a USB or a hundred meganets) by connecting screen matching software on an upper computer (such as a PC) in a butt joint manner so as to obtain the position coordinate information of each LED module. Therefore, the existing LED conference screen matching operation has the following defects: when the screen is matched, an upper computer such as a notebook computer is needed, and meanwhile, screen matching software installed on the upper computer is also needed; the screen matching operation is complex.
Disclosure of Invention
To overcome the drawbacks and disadvantages of the related art, embodiments of the present invention provide a screen matching method, a screen matching apparatus, a system controller, and an LED display.
On one hand, the screen matching method provided by the embodiment of the invention is applied to an LED display; the LED display comprises a system controller and a plurality of LED modules connected with the system controller, wherein the LED modules are spliced together in a row-column mode and are respectively provided with a module controller, the system controller comprises a display control circuit, a plurality of output ports and an embedded processor provided with an operating system, the embedded processor is electrically connected with the display control circuit, and the display control circuit is electrically connected with the module controllers of the LED modules through the output ports; the screen matching method comprises the following steps: receiving a screen allocation instruction input by a user by the embedded processor; the embedded processor responds to the screen allocation instruction to generate an information acquisition signal, a picture display signal and a wiring mode signal; the display control circuit responds to the information acquisition signals to acquire the resolution of the LED modules and the LED modules respectively carried by the output ports through the output ports; the display control circuit transmits the picture display signals to the module controllers of the LED modules through the plurality of output ports so as to control the LED modules to display preset pictures; and the display control circuit obtains the position coordinate information of each LED module according to the routing mode signal, the resolution of the plurality of LED modules and the LED modules respectively loaded by the plurality of output ports.
The screen matching method of the embodiment is based on the embedded processor and the display control circuit of the LED display, which are provided with the operating system, so that the screen matching operation is realized, and the screen matching instruction input can be realized by means of accessories of the LED display, such as a remote controller or keys, so that an additional upper computer provided with screen matching software is not needed, thereby simplifying the user operation and being simple and convenient to apply.
In one embodiment of the present invention, the receiving, by the embedded processor, the screen configuration instruction input by the user includes: receiving a first screen matching instruction and a second screen matching instruction which are sequentially input by a user in a wireless mode through a remote controller; the said responding to the said screen allocation instruction by the said embedded processor to produce information acquisition signal, picture display signal and wiring mode signal includes: and responding to the first screen allocation instruction to generate the information acquisition signal and the picture display signal, and responding to the second screen allocation instruction to generate the wiring mode signal.
In one embodiment of the present invention, the wireless means is an infrared transmission means.
In one embodiment of the present invention, the receiving, by the embedded processor, the screen configuration instruction input by the user includes: and receiving a screen matching instruction generated by pressing a target key on a key board which is connected with the embedded processor in a wired mode by a user.
In still another aspect, the screen matching device provided by the embodiment of the invention is applied to an LED display; the LED display comprises a system controller and a plurality of LED modules, wherein the LED modules are spliced together in a row-column mode and are respectively provided with a module controller, and the system controller is electrically connected with the module controllers of the LED modules through a plurality of output ports; the screen matching device comprises: the instruction receiving module is used for receiving a screen allocation instruction input by a user; the instruction response module is used for responding to the screen allocation instruction to generate an information acquisition signal, a picture display signal and a wiring mode signal; the information acquisition module is used for responding to the information acquisition signals to acquire the resolution of the LED modules and the LED modules respectively carried by the output ports through the output ports; the picture display module is used for transmitting the picture display signals to the module controllers of the LED modules through the plurality of output ports so as to control the LED modules to display preset pictures; and the coordinate acquisition module is used for acquiring the position coordinate information of each LED module according to the routing mode signal, the resolution of the plurality of LED modules and the LED modules respectively loaded by the plurality of output ports.
The screen matching device of the embodiment realizes screen matching operation based on the system controller of the LED display, and can realize screen matching instruction input by means of accessories of the LED display such as a remote controller or keys, so that an additional upper computer provided with screen matching software is not needed, thereby simplifying user operation and being simple and convenient to apply.
In another aspect, a system controller provided in an embodiment of the present invention includes: an embedded processor installed with an operating system; the display control circuit is electrically connected with the embedded processor; the LED module comprises a display control circuit, a plurality of LED modules and a plurality of output ports, wherein the display control circuit is electrically connected with the module controllers of the LED modules, and the LED modules are spliced together in a row-column mode and are respectively provided with the module controllers; wherein the embedded processor is configured to: receiving a screen allocation instruction input by a user, and responding to the screen allocation instruction to generate an information acquisition signal, a picture display signal and a wiring mode signal; wherein, the display control circuit is used for: responding to the information acquisition signals to acquire the resolution of the LED modules and the LED modules carried by the LED modules through the output ports, transmitting the picture display signals to the module controllers of the LED modules through the output ports to control the LED modules to display preset pictures, and obtaining the position coordinate information of each LED module according to the routing mode signals, the resolution of the LED modules and the LED modules carried by the output ports.
The embedded processor and the display control circuit of the operating system installed in the system controller of the embodiment can be used for realizing screen matching operation, and can realize screen matching instruction input by means of accessories such as a remote controller or keys, so that an additional upper computer provided with screen matching software is not needed, thereby simplifying user operation and being simple and convenient to apply.
In one embodiment of the invention, the system controller includes: the adapter plate is provided with a remote control plate interface and a plurality of output ports; the main control card is fixedly connected to the adapter plate in an inserting way through a first inserting assembly, wherein the main control card is provided with the embedded processor, and the embedded processor is electrically connected with the remote control board interface through the first inserting assembly; the display control card is inserted and fixed to the adapter plate through a second connector assembly, the display control card is provided with the display control circuit, the display control circuit is electrically connected with the embedded processor through the second connector assembly, the adapter plate and the first connector assembly, and the display control circuit is electrically connected with the plurality of output ports through the second connector assembly; and the remote control board is electrically connected with the remote control board interface and is provided with a wireless receiver.
In one embodiment of the invention, the system controller includes: the adapter plate is provided with a key plate interface and a plurality of output ports; the main control card is fixedly connected to the adapter plate in an inserting way through a first inserting assembly, wherein the main control card is provided with the embedded processor, and the embedded processor is electrically connected with the remote control board interface through the first inserting assembly; the display control card is inserted and fixed to the adapter plate through a second connector assembly, the display control card is provided with the display control circuit, the display control circuit is electrically connected with the embedded processor through the second connector assembly, the adapter plate and the first connector assembly, and the display control circuit is electrically connected with the plurality of output ports through the second connector assembly; and the key board is electrically connected with the key board interface and is provided with a plurality of keys.
In one embodiment of the present invention, the display control circuit includes a microcontroller, a programmable logic device and the at least one ethernet transceiver, the programmable logic device is electrically connected to the microcontroller, the at least one ethernet transceiver is electrically connected to the programmable logic device through a SerDes channel and is electrically connected to the plurality of output ports through the second socket assembly, and the plurality of output ports are ethernet interfaces, respectively.
In still another aspect, an LED display according to an embodiment of the present invention includes: any one of the foregoing system controllers; and a plurality of LED modules spliced together in a row-column manner and respectively configured with a module controller, wherein the module controllers of the plurality of LED modules are electrically connected with the plurality of output ports of the system controller.
The embedded processor and the display control circuit of the LED display provided with the operating system can be used for realizing screen matching operation, and screen matching instruction input can be realized by means of accessories of the LED display such as a remote controller or keys, so that an additional upper computer provided with screen matching software is not needed, thereby simplifying user operation and being simple and convenient to apply.
In summary, the technical solution according to the embodiment of the present invention may have the following beneficial effects: the screen matching operation can be realized by utilizing the embedded processor provided with the operating system and the display control circuit, and the screen matching instruction input can be realized by means of accessories of the LED display, such as a remote controller or keys, so that an additional upper computer provided with screen matching software is not needed, thereby simplifying the user operation and being simple and convenient to apply.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an interface state of a screen matching software in the prior art.
Fig. 2 is a schematic structural diagram of an LED display according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of the system controller 11 shown in fig. 2.
Fig. 4 is a schematic diagram of the structure of the display control circuit shown in fig. 3.
FIG. 5A is a schematic diagram of an embodiment of the system controller shown in FIG. 3.
Fig. 5B is a schematic structural diagram of the master card shown in fig. 5A.
Fig. 5C is a schematic diagram of a structure of the display control card shown in fig. 5A.
FIG. 6 is a schematic diagram of another embodiment of the system controller shown in FIG. 3.
Fig. 7 is a schematic flow chart of a screen matching method according to an embodiment of the present invention.
Fig. 8 is a schematic block diagram of a screen matching device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 2, an LED display 10 according to an embodiment of the present invention includes: a system controller 11 and a plurality of LED modules 13 electrically connected to the system controller 11. The LED modules 13 are spliced together in a row-column manner and are respectively configured with a module controller 130. In fig. 2, the LED modules 13 are arranged in 3×4 rows and columns, and twelve LED modules 13 are taken as examples, which are not intended to limit the embodiments of the present invention. Furthermore, the module controller 130 uses, for example, a well-established receiving card (or scan card), which includes, for example, an ethernet interface as an input port, an ethernet transceiver, a programmable logic device, an ethernet interface as a cascade port, and a flat cable interface as an output port for display data sets and control signals. In addition, the single LED module 13 is, for example, a single LED panel or a plurality of LED panels spliced together, which uses LED lamps as display pixels.
Referring to fig. 3, the system controller 11 includes, for example, an embedded processor 111, a display control circuit 113, and a plurality of output ports 115. The embedded processor 111 is typically installed with an operating system, such as an Android operating system or other similar operating system, such as an ARM core based RK3288 processor. The display control circuit 113 is electrically connected to the embedded processor 111 and the plurality of output ports 115. For example, the plurality of output ports 115 are respectively ethernet interfaces, but other types of interfaces, such as HDMI interfaces, are also possible. Some or all of the plurality of output ports 115 are electrically connected to the plurality of LED modules 13. For twelve LED modules 13 shown in fig. 2, each output port 115 may carry a row of three LED modules 13, so that four output ports 115 are required to carry the twelve LED modules 13; the three LED modules 13 in the same column are connected in cascade, for example by a network cable.
Referring to fig. 4, the display control circuit 113 includes, for example, a microcontroller 1132, a programmable logic device 1134, a multiport ethernet transceiver 1136, and a 5G ethernet transceiver 1138. The microcontroller 1132 is electrically connected to the embedded processor 111, for example, through a serial port, and is, for example, an STM32 series singlechip; the programmable logic device 1134 is electrically connected to the microcontroller 1132 and to the embedded processor 111, for example, through an LVDS (Low Voltage Differential Signaling ) channel, so that image data in a differential signaling format can be acquired from the embedded processor 111 through the LVDS channel. The multiport ethernet transceiver 1136 is electrically connected to the programmable logic device 1134 through a SerDes (Serializer and Deserializer, serializer-deserializer) channel, the multiport ethernet transceiver 1136 being, for example, an eight-port ethernet transceiver and being a single transceiver chip, which electrically connects the programmable logic device 1134 through two SerDes channels, for example, and each SerDes channel contains two pairs of differential lines, specifically one pair of differential lines for data transmission and the other pair of differential lines for data reception; the programmable logic device 1134 is accordingly configured with a SerDes interface; each output port 115 is, for example, an ethernet interface, eight of which output ports 115 may be electrically connected to the eight-port ethernet transceiver. In the embodiment, a plurality of ethernet interfaces are carried by arranging the multi-port ethernet transceiver 1136, and the multi-port ethernet transceiver 1136 is electrically connected with the programmable logic device 1134 by using the SerDes channel, so that a larger number of output ports can be carried by using a smaller pin number of the programmable logic device 1134; for example, a single-path output carries 1G, a universal band carries 65 ten thousand pixels, and eight Ethernet interfaces can realize 8G band loading.
Furthermore, 5G Ethernet transceiver 1138 is electrically coupled to programmable logic device 1134 via a SerDes channel. Specifically, the 5G ethernet transceivers 1138 are, for example, two-way 5G ethernet transceivers, where each of the 5G ethernet transceivers 1138 is electrically connected to a SerDes interface configured by the programmable logic device 1134 through a SerDes channel; accordingly, two 5G ethernet transceivers may electrically connect two ethernet interfaces as output ports 115. In this embodiment, by adding the 5G ethernet transceiver 1138, the single output carries 5G, and the carrying capacity of one 5G ethernet interface is equivalent to the carrying capacity of 5 1G ethernet interfaces, which further improves the output carrying capacity of the display control circuit 113.
Referring to fig. 5A, 5B, and 5C, as an embodiment of the system controller 11 in fig. 3, the system controller 11a includes: adapter board 110, host card 1110, display control card 1130, a plurality of outlets 115, and remote control board 117. The adapter plate 110 is provided with a remote control plate interface 1101, and the plurality of output ports 115 are disposed on the adapter plate 110. The main control card 1110 is provided with an embedded processor 111 and a plug-in component 1112, and the main control card 1110 is fixedly connected to the adapter plate 110 in a plug-in manner through the plug-in component 1112, so that the embedded processor 111 is electrically connected with the remote control board interface 1101 through the plug-in component 1112; the connector assembly 1112 herein is, for example, two 200pin high-density connectors arranged in pairs or other pin count connectors arranged in pairs. The display control card 1130 is provided with a display control circuit 113 and a connector assembly 1132, and the display control card 1130 is fixed to the adapter plate 110 through the connector assembly 1132 in a plugging manner, so that the display control circuit 113 is electrically connected with the embedded processor 111 through the connector assembly 1132, the adapter plate 110 and the connector assembly 1112, and is electrically connected with the plurality of output ports 115 through the connector assembly 1132; the connector assembly 1132 herein is, for example, two 200pin high-density connectors arranged in pairs or other pin count connectors arranged in pairs. Furthermore, the remote control board 117 is electrically connected to the remote control board interface 1101, for example, by a flat cable; the remote control board 117 here is provided with a wireless receiver 1171, such as an infrared receiver. The modular design of the system controller 11a of the present embodiment can accommodate LED displays with different sizes and/or functional requirements by appropriately increasing or decreasing circuit elements of the adapter plate 110 on the premise of keeping the hardware structures of the main control card 1110 and the display control card 1130 unchanged, thereby improving the design flexibility of the product and reducing the production design cost of the product.
Referring to fig. 6, 5B and 5C, as another embodiment of the system controller 11 in fig. 3, the system controller 11B includes: adapter plate 110, host card 1110, display control card 1130, a plurality of outlets 115, and keypad 119. The patch panel 110 is provided with a keypad interface 1103, and the plurality of output ports 115 are disposed on the patch panel 110. The main control card 1110 is provided with an embedded processor 111 and a plug-in component 1112, and the main control card 1110 is plug-in fixed to the adapter plate 110 through the plug-in component 1112. The display control card 1130 is provided with a display control circuit 113 and a connector assembly 1132, and the display control card 1130 is fixed to the adapter board 110 by plugging through the connector assembly 1132, so that the display control circuit 113 is electrically connected to the embedded processor 111 through the connector assembly 1132, the adapter board 110 and the connector assembly 1112, and is electrically connected to the plurality of output ports 115 and the keypad interface 1103 through the connector assembly 1132. Furthermore, the keypad 119 is electrically connected to the keypad interface 1103, for example, the keypad interface 1103 is connected by a flat cable; the keypad 119 is provided with a plurality of keys 1191, such as a "brightness+" key, a "brightness-" key, a "volume+" key, a "volume-" key, and the like.
A screen matching method suitable for application to the aforementioned LED display 10 will be described in detail below. For the LED display 10, the LED modules 13 are routed from top to bottom, from bottom to top, from left to right, or from right to left, that is, the single output port 115 carries only one row of LED modules 13 or one row of LED modules 13.
As shown in fig. 7, the screen matching method of the present embodiment includes the steps of:
s71: receiving a screen allocation instruction input by a user;
s73: responding to the screen allocation instruction to generate an information acquisition signal, a picture display signal and a wiring mode signal;
s75: responding to the information acquisition signal to acquire the resolution of a plurality of LED modules and the LED modules respectively carried by the plurality of output ports through the plurality of output ports;
s77: transmitting the picture display signals to a module controller of the LED modules through the plurality of output ports so as to control the LED modules to display preset pictures; and
s79: and obtaining the position coordinate information of each LED module according to the routing mode signal, the resolution of the plurality of LED modules and the LED modules (such as the information of the number or the unique identification number of the LED modules) carried by the plurality of output ports respectively.
In order to more clearly understand the screen matching method of the present embodiment, two specific embodiments will be described below to respectively complete the screen matching operation of the LED display 10 in a remote controller and a key manner. In addition, for simplicity of explanation, the following description will be given by way of example with the wiring from top to bottom.
[ detailed description ] of the invention
(a) The user continuously presses the [ confirm key ] of the remote controller three times to generate a first screen matching instruction, wherein the first screen matching instruction is transmitted to the remote control board 117 in a wireless mode, such as an infrared transmission mode, and is input to the embedded processor 111 to trigger the embedded processor 111 to enter a screen matching mode, and the embedded processor 111 responds to the first screen matching instruction to generate an information acquisition signal and a picture display signal;
(b) The microcontroller 1132 of the display control circuit 113 responds to the information acquisition signal to acquire the resolution of the LED modules 13 and the number of the LED modules 13 respectively carried by the plurality of output ports 115 via the programmable logic device 1134, where each output port 115 only acquires the height and width of the respective carried first stage LED module 13, which are characterized by the number of pixels, and the resolution of the other stage LED modules 13 is the same as that of the first stage LED module 13 by default; in addition, in the 3-row 4-column LED modules 13, four output ports 115 are used to load the LED modules 13 in a top-down wiring manner, the number of LED modules loaded by each output port 115 is 3, and the four output ports 115 are configured with mutually distinguished identification numbers (such as position numbers);
(c) The microcontroller 1132 and the programmable logic device 1134 of the display control circuit 113 transmit the screen display signals to the module controllers 130 of the LED modules 13 through the plurality of output ports 115 to control the LED modules 13 to display preset screens, where the module controllers 130 of the LED modules 13 store preset screen data locally, for example, and call the locally stored preset screen data to realize the display of the preset screens under the control of the screen display signals, thereby prompting the user that the screen matching mode has been entered currently, and the preset screens herein, for example, a monochrome screen or a gradation screen, but the embodiment of the present invention is not limited thereto.
(d) Because the LED display 10 employs a conventional routing scheme, the user presses twice [ down arrow key ] on the infrared remote control to generate a second screen allocation command that is sent wirelessly, e.g., infrared, to the remote control board 117 for input to the embedded processor 111 to trigger the embedded processor 111 to respond to the second screen allocation command to generate a routing scheme signal, where the routing scheme signal characterizes a top-to-bottom routing scheme; the routing signal generated by the embedded processor 111 is notified to the microcontroller 1132 of the display control circuit 113, for example, through a serial port, and the microcontroller 1132 can calculate the position coordinate information of each LED module 13 according to the routing signal by combining the resolution of the plurality of LED modules 13 obtained as described above and the number or unique identification number of the LED modules carried by the plurality of output ports 115 respectively. The calculation mode of the position coordinate information is the prior art and will not be described herein. After the position coordinate information of each LED module 13 is obtained, the microcontroller 1132 is matched with the programmable logic device 1134, so that the video source can be output according to a predetermined mode, and the correct display of the picture can be realized.
As can be seen from the above, in this embodiment, the accessory of the LED display 10, i.e. the remote controller, is used to input the screen matching instruction, for example, the embedded processor 111 is triggered to enter the screen matching mode and input the routing mode to the embedded processor 111, and then the microcontroller 1132 in the display control circuit 113 is used to perform information acquisition and position coordinate information calculation in combination with the programmable logic device 1134, so that an upper computer such as a notebook computer with additional screen matching software is not needed, thereby simplifying the operation of the user and simplifying the application.
It is worth mentioning that, for the bottom-up wiring mode, the user can press the [ upward direction key ] twice on the remote controller to generate the second screen allocation instruction; by analogy, for a left-to-right routing approach, a user may press twice on the remote control [ right direction key ] to generate a second screen allocation instruction; and for a right-to-left wiring mode, the user can press the [ left direction key ] twice on the remote controller to generate a second screen allocation instruction. In addition, it is understood that, for the first screen allocation instruction, it is not limited to three times of continuously pressing the [ confirm key ] of the remote controller, but may be other number of pressing times, or the first screen allocation instruction is triggered and generated by defining other keys on the remote controller.
[ detailed description of the invention ] II
Where the LED display 10 is provided with a keypad 119, the functions of the keys may be multiplexed, for example, the brightness may be adjusted by pressing a "brightness+" or "brightness-" key, but the screen may be configured by using a "brightness+" or "brightness-" key.
For example, the 'brightness-' key is pressed for 20 seconds to enter a screen matching mode, and screen matching in a top-down wiring mode is completed. In particular, the method comprises the steps of,
(i) When the embedded processor 111 detects that the "brightness-" key on the key board 119 is pressed for more than 20 seconds, the embedded processor 111 responds to the screen allocation instruction containing the routing mode from top to bottom to generate an information acquisition signal, a picture display signal and a routing mode signal, wherein the screen allocation instruction containing the routing mode from top to bottom is indicated to be generated;
(ii) The microcontroller 1132 of the display control circuit 113 responds to the information acquisition signal to acquire the information such as the resolution of the LED modules 13 and the number or unique identification number of the LED modules 13 respectively carried by the plurality of output ports 115 through the programmable logic device 1134 and through the plurality of output ports 115, where each output port 115 only acquires the height and width of the respective carried first stage LED modules 13, which are characterized by the number of pixels, and the resolution of the other stage LED modules 13 is the same as that of the first stage LED modules 13 by default; in addition, in the 3 rows and 4 columns of LED modules 13, four output ports 115 are used to load the LED modules 13 in a top-to-bottom wiring manner, the number of LED modules loaded by each output port 115 is 3, and the four output ports 115 are configured with mutually distinguished identification numbers (such as position numbers);
(iii) The microcontroller 1132 and the programmable logic device 1134 of the display control circuit 113 transmit the screen display signals to the module controllers 130 of the LED modules 13 through the plurality of output ports 115 to control the LED modules 13 to display preset screens, where the module controllers 130 of the LED modules 13 store preset screen data locally, for example, and call the locally stored preset screen data to realize the display of the preset screens under the control of the screen display signals, thereby prompting the user that the screen matching mode has been entered currently, and the preset screens herein, for example, a monochrome screen or a gradation screen, but the embodiment of the present invention is not limited thereto.
(iv) The routing signal generated by the embedded processor 111 is notified to the microcontroller 1132 of the display control circuit 113, for example, through a serial port, and the microcontroller 1132 can calculate the position coordinate information of each LED module 13 according to the routing signal by combining the obtained information such as the resolution of the LED modules 13 and the number or unique identification number of the LED modules carried by the output ports 115. The calculation mode of the position coordinate information is the prior art and will not be described herein. After the position coordinate information of each LED module 13 is obtained, the microcontroller 1132 is matched with the programmable logic device 1134, so that the video source can be output according to a predetermined mode, and the correct display of the picture can be realized.
In the second embodiment, the input of the screen matching instruction is realized by means of the keypad 119 of the LED display 10, for example, the embedded processor 111 is triggered to enter the screen matching mode and input a wiring mode to the embedded processor 111, and then the microcontroller 1132 in the display control circuit 113 is combined with the programmable logic device 1134 to perform information acquisition and position coordinate information calculation, so that the screen matching operation can be simplified, and an additional upper computer with screen matching software is not required. Furthermore, the 'brightness+' key is pressed for 20 seconds to enter a screen matching mode, so that screen matching in a bottom-up wiring mode can be completed; and so on, the keys can be replaced, for example, the 'volume+' key is pressed for 20 seconds to enter a screen matching mode, the screen matching in a left-to-right wiring mode can be completed, for example, the 'volume-' key is pressed for 20 seconds to enter the screen matching mode, and the screen matching in the right-to-left wiring mode can be completed. Alternatively, the manner of triggering may be replaced with another manner.
In addition, it should be noted that the number of pressing the key on the remote controller and the duration of the key on the key pad 119 are merely examples, and are not meant to limit the embodiments of the present invention. Furthermore, the display of the preset image on each LED module 13 is not limited to the manner of calling the locally stored preset image data, but the embedded processor 111 may also provide the preset image data to the programmable logic device 1134 through the LVDS channel and output the preset image data to each LED module 13 through each output port 115, and the module controller 130 of each LED module 13 may obtain the preset image data to perform the preset image display, which may also achieve the purpose of prompting the user that the user has entered the screen matching mode currently.
Referring to fig. 8, a screen matching device 80 according to an embodiment of the present invention is suitable for the LED display 10, and includes: an instruction receiving module 81, an instruction responding module 83, an information acquiring module 85, a screen displaying module 87, and a coordinate acquiring module 89.
The instruction receiving module 81 is configured to receive a screen allocation instruction input by a user; the instruction response module 83 is configured to respond to the screen configuration instruction to generate an information acquisition signal, a picture display signal and a routing mode signal; the information obtaining module 85 is configured to respond to the information obtaining signal to obtain the resolution of the LED modules and the LED modules (such as information of number or unique identification number) carried by the LED modules through the plurality of output ports; the picture display module 87 is configured to transmit the picture display signal to the module controllers of the LED modules through the plurality of output ports, so as to control the LED modules to display a preset picture; and the coordinate obtaining module 89 is configured to obtain position coordinate information of each LED module according to the routing mode signal, the resolution of the plurality of LED modules, and the number of the LED modules carried by the plurality of output ports respectively.
For the specific functional details of the instruction receiving module 81, the instruction responding module 83, the information obtaining module 85, the screen displaying module 87 and the coordinate obtaining module 89, reference is made to the relevant description of the screen matching method in the foregoing embodiment, and the details are not repeated here. Furthermore, it should be noted that the instruction receiving module 81, the instruction responding module 83, the information acquiring module 85, the screen displaying module 87 and the coordinate acquiring module 89 may be software modules, stored in a nonvolatile memory and executed by a plurality of processors to perform the screen matching method in the foregoing embodiments.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments may be arbitrarily combined and matched for use without conflict in technical features, contradiction in structure, and departure from the purpose of the present invention, for example, the embodiment shown in fig. 5A and the embodiment shown in fig. 6 may be combined to obtain a system controller with both a remote control board and a keypad.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A screen matching method is applied to an LED display; the LED display is characterized by comprising a system controller and a plurality of LED modules connected with the system controller, wherein the LED modules are spliced together in a row-column mode and are respectively provided with a module controller, the system controller comprises a display control circuit, a plurality of output ports and an embedded processor provided with an operating system, the embedded processor is electrically connected with the display control circuit, and the display control circuit is electrically connected with the module controllers of the LED modules through the output ports; the screen matching method comprises the following steps:
receiving a screen allocation instruction input by a user by the embedded processor;
the embedded processor responds to the screen allocation instruction to generate an information acquisition signal, a picture display signal and a wiring mode signal;
the display control circuit responds to the information acquisition signals to acquire the resolution of the LED modules and the LED modules respectively carried by the output ports through the output ports;
the display control circuit transmits the picture display signals to the module controllers of the LED modules through the plurality of output ports so as to control the LED modules to display preset pictures; and
the display control circuit obtains the position coordinate information of each LED module according to the routing mode signal, the resolution of the LED modules and the LED modules respectively loaded by the output ports;
wherein the receiving, by the embedded processor, a screen allocation instruction input by a user includes: receiving a first screen matching instruction and a second screen matching instruction which are sequentially input by a user in a wireless mode through a remote controller; the said responding to the said screen allocation instruction by the said embedded processor to produce information acquisition signal, picture display signal and wiring mode signal includes: and responding to the first screen allocation instruction to generate the information acquisition signal and the picture display signal, and responding to the second screen allocation instruction to generate the wiring mode signal.
2. The screen matching method as recited in claim 1, wherein the wireless mode is an infrared transmission mode.
3. The screen-matching method of claim 1, wherein the receiving, by the embedded processor, a screen-matching instruction entered by a user comprises: and receiving a screen matching instruction generated by pressing a target key on a key board which is connected with the embedded processor in a wired mode by a user.
4. A screen matching device is applied to an LED display; the LED display is characterized by comprising a system controller and a plurality of LED modules, wherein the LED modules are spliced together in a row-column mode and are respectively provided with a module controller, and the system controller is electrically connected with the module controllers of the LED modules through a plurality of output ports; the screen matching device comprises:
the instruction receiving module is used for receiving a screen allocation instruction input by a user;
the instruction response module is used for responding to the screen allocation instruction to generate an information acquisition signal, a picture display signal and a wiring mode signal;
the information acquisition module is used for responding to the information acquisition signals to acquire the resolution of the LED modules and the LED modules respectively carried by the output ports through the output ports;
the picture display module is used for transmitting the picture display signals to the module controllers of the LED modules through the plurality of output ports so as to control the LED modules to display preset pictures; and
the coordinate acquisition module is used for acquiring the position coordinate information of each LED module according to the routing mode signal, the resolution of the plurality of LED modules and the LED modules respectively loaded by the plurality of output ports;
wherein, the instruction receiving module is further configured to: receiving a first screen matching instruction and a second screen matching instruction which are sequentially input by a user in a wireless mode through a remote controller; the instruction response module is further configured to: and responding to the first screen allocation instruction to generate the information acquisition signal and the picture display signal, and responding to the second screen allocation instruction to generate the wiring mode signal.
5. A system controller, comprising:
an embedded processor installed with an operating system;
the display control circuit is electrically connected with the embedded processor; and
the LED module comprises a display control circuit, a plurality of output ports, a module controller, a control circuit and a control circuit, wherein the display control circuit is electrically connected with the module controller of a plurality of LED modules, and the LED modules are spliced together in a row-column mode and are respectively provided with the module controller;
wherein the embedded processor is configured to: receiving a screen allocation instruction input by a user, and responding to the screen allocation instruction to generate an information acquisition signal, a picture display signal and a wiring mode signal;
wherein, the display control circuit is used for: responding to the information acquisition signals to acquire the resolution of the LED modules and the LED modules respectively carried by the LED modules through the plurality of output ports, transmitting the picture display signals to the module controller of the LED modules through the plurality of output ports to control the LED modules to display preset pictures, and acquiring position coordinate information of each LED module according to the routing mode signals, the resolution of the LED modules and the LED modules respectively carried by the LED modules through the plurality of output ports;
wherein the embedded processor is further configured to: receiving a first screen matching instruction and a second screen matching instruction which are sequentially input by a user in a wireless mode through a remote controller, responding to the first screen matching instruction to generate the information acquisition signal and the picture display signal, and responding to the second screen matching instruction to generate the wiring mode signal.
6. The system controller of claim 5, wherein the system controller comprises:
the adapter plate is provided with a remote control plate interface and a plurality of output ports;
the main control card is fixedly connected to the adapter plate in an inserting way through a first inserting assembly, wherein the main control card is provided with the embedded processor, and the embedded processor is electrically connected with the remote control board interface through the first inserting assembly;
the display control card is inserted and fixed to the adapter plate through a second connector assembly, the display control card is provided with the display control circuit, the display control circuit is electrically connected with the embedded processor through the second connector assembly, the adapter plate and the first connector assembly, and the display control circuit is electrically connected with the plurality of output ports through the second connector assembly; and
and the remote control board is electrically connected with the remote control board interface and is provided with a wireless receiver.
7. The system controller of claim 5, wherein the system controller comprises:
the adapter plate is provided with a key plate interface and a plurality of output ports;
the main control card is fixedly connected to the adapter plate in an inserting way through a first inserting assembly, wherein the main control card is provided with the embedded processor, and the embedded processor is electrically connected with a remote control plate interface through the first inserting assembly;
the display control card is inserted and fixed to the adapter plate through a second connector assembly, the display control card is provided with the display control circuit, the display control circuit is electrically connected with the embedded processor through the second connector assembly, the adapter plate and the first connector assembly, and the display control circuit is electrically connected with the plurality of output ports through the second connector assembly; and
and the key board is electrically connected with the key board interface and is provided with a plurality of keys.
8. The system controller of any one of claims 6 to 7, wherein the display control circuit comprises a microcontroller, a programmable logic device electrically connected to the microcontroller, and at least one ethernet transceiver electrically connected to the programmable logic device through a SerDes channel and electrically connected to the plurality of output ports through the second connector assembly, and the plurality of output ports are ethernet interfaces, respectively.
9. An LED display, comprising:
a system controller as claimed in any one of claims 5 to 8; and
the LED modules are spliced together in a row-column mode and are respectively provided with a module controller, wherein the module controllers of the LED modules are electrically connected with the output ports of the system controller.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113364690B (en) * | 2021-04-21 | 2023-01-31 | 深圳市乐美客视云科技有限公司 | Method, device, terminal and storage medium for determining network transmission path of receiving card |
| CN113270060A (en) * | 2021-04-30 | 2021-08-17 | 西安诺瓦星云科技股份有限公司 | Image data transmission method and device, display controller and display screen control system |
| CN114360446B (en) * | 2021-12-30 | 2023-08-04 | 浙江宇视科技有限公司 | Method, device, medium and equipment for calculating quantity of control equipment for LED display |
| CN114999373A (en) * | 2022-05-31 | 2022-09-02 | 西安诺瓦星云科技股份有限公司 | Method, device, electronic equipment and medium for determining configuration scheme of display screen |
| CN116343657B (en) * | 2023-03-28 | 2024-05-03 | 广东保伦电子股份有限公司 | Display method and device suitable for large-screen windowing |
| CN118155551A (en) * | 2024-05-09 | 2024-06-07 | 歌尔股份有限公司 | Display control method, device, equipment and storage medium for LED display screen |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6028585A (en) * | 1995-09-22 | 2000-02-22 | International Business Machines Corporation | Screen display control method and a screen display control apparatus |
| CN201281930Y (en) * | 2008-10-27 | 2009-07-29 | 深圳市彤兴电子有限公司 | System for matching screen of liquid crystal display |
| CN102073375A (en) * | 2009-11-24 | 2011-05-25 | 联想(北京)有限公司 | Portable terminal and display output method thereof |
| CN103400551A (en) * | 2013-08-19 | 2013-11-20 | 西安诺瓦电子科技有限公司 | Led display screen controller and led display screen system |
| CN104050920A (en) * | 2014-06-20 | 2014-09-17 | 西安诺瓦电子科技有限公司 | Led display screen control system and asynchronous control card |
| CN105117190A (en) * | 2015-09-07 | 2015-12-02 | 西安诺瓦电子科技有限公司 | LED display screen matching method |
| CN106909333A (en) * | 2017-04-27 | 2017-06-30 | 西安诺瓦电子科技有限公司 | The screen configuration method and device of display screen |
| CN107038991A (en) * | 2017-05-10 | 2017-08-11 | 西安诺瓦电子科技有限公司 | Spliced display screen screen configuration method and device and display screen control card |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030063071A1 (en) * | 2001-09-28 | 2003-04-03 | Wyatt David A. | Method and apparatus for signaling user initiated hot-key switch control |
| US8161388B2 (en) * | 2004-01-21 | 2012-04-17 | Rodriguez Arturo A | Interactive discovery of display device characteristics |
-
2019
- 2019-08-29 CN CN201910808359.4A patent/CN112445445B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6028585A (en) * | 1995-09-22 | 2000-02-22 | International Business Machines Corporation | Screen display control method and a screen display control apparatus |
| CN201281930Y (en) * | 2008-10-27 | 2009-07-29 | 深圳市彤兴电子有限公司 | System for matching screen of liquid crystal display |
| CN102073375A (en) * | 2009-11-24 | 2011-05-25 | 联想(北京)有限公司 | Portable terminal and display output method thereof |
| CN103400551A (en) * | 2013-08-19 | 2013-11-20 | 西安诺瓦电子科技有限公司 | Led display screen controller and led display screen system |
| CN104050920A (en) * | 2014-06-20 | 2014-09-17 | 西安诺瓦电子科技有限公司 | Led display screen control system and asynchronous control card |
| CN105117190A (en) * | 2015-09-07 | 2015-12-02 | 西安诺瓦电子科技有限公司 | LED display screen matching method |
| CN106909333A (en) * | 2017-04-27 | 2017-06-30 | 西安诺瓦电子科技有限公司 | The screen configuration method and device of display screen |
| CN107038991A (en) * | 2017-05-10 | 2017-08-11 | 西安诺瓦电子科技有限公司 | Spliced display screen screen configuration method and device and display screen control card |
Non-Patent Citations (1)
| Title |
|---|
| Transport AC Loss Reduction in Striated YBCO Coated Conductors by Magnetic Screening;Milan Majoros; Mike D. Sumption; Edward W. Collings;《IEEE Transactions on Applied Superconductivity》;20090630;第19卷(第3期);第3352-3355页 * |
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|---|---|
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