LED integrated control card, display device and display method of display device

Abstract

The invention discloses an LED integrated control card, a display system and a display control device method, the LED integrated control card comprises a plurality of signal transceivers, a data processing module, a storage module, a control module and a power supply module, and the positioning of the LED integrated control card can be realized through the signal transceivers; format conversion of display data signals is realized through the data processing module, data interaction and control among the modules are realized through the control module, data storage is realized through the storage module, and power supply is realized through the power supply module, so that the LED integrated control card integrates functional parts required by the signal transceiver and the LED display screen into a whole; according to the technical scheme of the invention, the installation of most materials of the LED display screen can be realized through the installation of the LED integrated control card, the installation steps of the LED display screen are simplified, and the position of the LED integrated control card can be determined based on the signal transceiver, so that the automatic screen connection of the display equipment can be realized, and the screen connection efficiency is improved.

Description

Technical Field

[0001] This application belongs to the technical field of display screens, and particularly relates to an LED integrated control card, a display device, and a display method for the display device. Background Art

[0002] In the LED (Light-Emitting Diode) display screen industry, "large screens" are often talked about. With an area of hundreds or thousands, the shocking visual effects presented are very eye-catching. In the digital age, as an important carrier for urban landscapes and advertising, LED display screens have spread all over the city.

[0003] In some large-scale events or projects, large-area LED display screens are often required to display images. In such cases, the screen splicing method is usually adopted, where multiple small-area LED display screens are spliced into a large-area splicing screen. During this process, the operation of connecting the small-area LED display screens is required, that is, the signal transmission links between the small-area LED display screens are correctly connected so that the splicing screen can display accurate content. However, currently, users usually need to manually perform the connection operation based on the installation position of the LED display screen, resulting in low connection efficiency.

[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of this application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0005] The purpose of this application is to provide an LED integrated control card, a display device, and a display method for the display device to improve the connection efficiency of LED display screens.

[0006] Other features and advantages of this application will become apparent through the following detailed description, or be learned in part through the practice of this application.

[0007] According to one aspect of the embodiments of this application, an LED integrated control card is provided, including:

[0008] Multiple signal transceivers, which are used to send and / or receive detection signals, where the detection signals sent and / or received are used to determine the positioning information of the LED integrated control card; the signal transceivers are arranged at the boundaries of the LED integrated control card, and one signal transceiver is correspondingly arranged for one boundary;

[0009] A data processing module, which is used to convert the display data signal in the first format into the display data signal in the second format, and the display data signal in the second format is used to enable the display device to perform data display;

[0010] A storage module for storing the positioning information of the LED integrated control card;

[0011] A control module is electrically connected to the data processing module, the signal transceiver, and the storage module respectively, and is also communicatively connected to a data sending device for sending a display data signal in the first format; the control module is configured to send the display data signal in the first format to the data processing module, obtain the detection signal received by the signal transceiver, generate the positioning information according to the detection signal, and send the positioning information to the storage module;

[0012] A power supply module is electrically connected to the control module, the data processing module, the signal transceiver, and the storage module respectively, and is used to provide operating voltage for the connected modules.

[0013] In an embodiment of the present application, the detection signal emitted by the signal transceiver propagates based on the emission direction.

[0014] According to one aspect of the embodiments of the present application, a display device is provided, including:

[0015] A plurality of LED display units arranged in an array;

[0016] A plurality of LED integrated control cards, one LED integrated control card is provided corresponding to one LED display unit; the LED integrated control card is the LED integrated control card according to any one of claims 1-2, and the plurality of LED integrated control cards corresponding to the plurality of LED display units are connected in cascade.

[0017] In an embodiment of the present application, the data processing module in the LED integrated control card of the previous LED display unit is connected to the data processing module in the LED integrated control card of the next LED display unit, so that the plurality of LED integrated control cards are connected in cascade.

[0018] In an embodiment of the present application, the display device is connected to a data sending device, and the data sending device includes a plurality of data sending ports; the display device includes a plurality of display unit groups, and one display unit group is connected to one data sending port of the data sending device; one display unit group includes a plurality of the LED display units, and the plurality of LED display units in one display unit group form a cascade relationship.

[0019] According to one aspect of the embodiments of the present application, a display method of a display device is provided, and the display device is the display device provided by any embodiment of the present application; the method includes:

[0020] For each data sending port of the data sending device, determine the first position coordinates of each cascaded LED display unit connected to the data sending port, where the first position coordinates represent the data sending port corresponding to the LED display unit and the cascading order;

[0021] According to the first position coordinates of each cascaded LED display unit, determine the second position coordinates of each cascaded LED display unit, where the second position coordinates represent the physical position of the LED display unit in the display device;

[0022] According to the first position coordinates and the second position coordinates of each cascaded LED display unit, send corresponding display data signals to each cascaded LED display unit, so that each cascaded LED display unit drives the display device to perform data display based on its own display data signal.

[0023] In an embodiment of the present application, determining the first position coordinates of each cascaded LED display unit connected to the data sending port includes:

[0024] Use the port identifier of the data sending port as the first port coordinate value in the first position coordinates of the LED display unit;

[0025] Use the cascading order of the LED display unit among each cascaded LED display unit as the second port coordinate value in the first position coordinates of the LED display unit;

[0026] Generate the first position coordinates of the LED display unit according to the first port coordinate value and the second port coordinate value.

[0027] In an embodiment of the present application, according to the first position coordinates of each cascaded LED display unit, determining the second position coordinates of each cascaded LED display unit includes:

[0028] Select an LED display unit from multiple LED display units connected to multiple data sending ports of the data sending device. If the LED display unit has second position coordinates, use the LED display unit as the starting display unit; among them, the second position coordinates of the first selected LED display unit include a first preset physical coordinate value and a second preset physical coordinate value;

[0029] According to the first position coordinates of multiple LED display units cascaded by the starting display unit, sequentially traverse the multiple LED display units to determine the second position coordinates of each LED display unit according to the detection signals of signal transceivers in each LED display unit;

[0030] After traversing all the multiple LED display units corresponding to the starting display unit, remove the data transmission port connected to the starting display unit from the multiple data transmission ports, and return to the step of selecting an LED display unit as the starting display unit from the multiple LED display units connected to the multiple data transmission ports of the data transmission device.

[0031] In an embodiment of the present application, the LED integrated control card includes signal transceivers arranged at the upper, lower, left, and right four boundaries. The first position coordinates of the LED display unit include a first port coordinate value and a second port coordinate value, and the second position coordinates of the LED display unit include a first physical coordinate value and a second physical coordinate value; according to the first position coordinates of the multiple LED display units cascaded by the starting display unit, traverse the multiple LED display units in sequence to determine the second position coordinates of each LED display unit according to the detection signals of the signal transceivers in each LED display unit, including:

[0032] Starting from the starting display unit, determine the current LED display unit according to the ascending order of the second port coordinate values of the multiple LED display units cascaded by the starting display unit;

[0033] If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the upper boundary signal transceiver, use the first physical coordinate value of the current LED display unit as the first physical coordinate value of the adjacent LED display unit above the current LED display unit, and use the second physical coordinate value of the current LED display unit after increasing a predetermined value as the second physical coordinate value of the adjacent LED display unit above the current LED display unit;

[0034] If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the lower boundary signal transceiver, use the first physical coordinate value of the current LED display unit as the first physical coordinate value of the adjacent LED display unit below the current LED display unit, and use the second physical coordinate value of the current LED display unit after decreasing a predetermined value as the second physical coordinate value of the adjacent LED display unit below the current LED display unit;

[0035] If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the left boundary signal transceiver, then increase the first physical coordinate value of the current LED display unit by a predetermined value and use it as the first physical coordinate value of the adjacent LED display unit to the left of the current LED display unit, and use the second physical coordinate value of the current LED display unit as the second physical coordinate value of the adjacent LED display unit to the left of the current LED display unit;

[0036] If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the right boundary signal transceiver, then decrease the first physical coordinate value of the current LED display unit by a predetermined value and use it as the first physical coordinate value of the adjacent LED display unit to the right of the current LED display unit, and use the second physical coordinate value of the current LED display unit as the second physical coordinate value of the adjacent LED display unit to the right of the current LED display unit.

[0037] In an embodiment of the present application, in the process of determining the second position coordinate of the adjacent LED display unit of the current LED display unit according to the detection signal received by the LED integrated control card of the current LED display unit, the method further includes:

[0038] If it is determined that the adjacent LED display unit of the current LED display unit has set the second position coordinate, then skip the adjacent LED display unit; and / or

[0039] If the signal transceiver in the specified direction of the current LED display unit does not receive the detection signal, then record that there is no LED display unit in the current LED display unit in the specified direction; wherein, the specified direction is any one of up, down, left, and right.

[0040] In the technical solution provided by the embodiment of the present application, the LED integrated control card includes multiple signal transceivers, a data processing module, a storage module, a control module, and a power module. The positioning of the LED integrated control card can be achieved through the signal transceivers, the format conversion of the display data signal can be achieved through the data processing module, the data interaction and control between modules can be achieved through the control module, data storage can be achieved through the storage module, and power supply can be achieved through the power module. It can be seen that the LED integrated control card integrates signal transceivers, can automatically determine the position of the LED integrated control card, and then determine the position of the corresponding LED display unit, so as to realize the automatic screen connection operation of the display device formed by splicing multiple LED display units, making the screen connection process without manual operation, effectively improving the screen connection efficiency; at the same time, the LED integrated control card integrates the functional components required by the LED display screen, and most of the material installation of the LED display screen can be realized through the installation of the LED integrated control card, thus simplifying the installation steps of the LED display screen and improving the installation efficiency.

[0041] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. Brief Description of the Drawings

[0042] The drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0043] Figure 1 Schematically shows a structural block diagram of an LED integrated control card provided by an embodiment of the present application.

[0044] Figure 2 Schematically shows a schematic diagram of a display device provided by an embodiment of the present application.

[0045] Figure 3 Schematically shows a schematic diagram of a display device provided by an embodiment of the present application.

[0046] Figure 4 Schematically shows a flowchart of a display method of a display device provided by an embodiment of the present application.

[0047] Figure 5 Schematically shows a schematic diagram of a display device provided by an embodiment of the present application.

[0048] Figure 6 Schematically shows a flowchart of a display method of a display device provided by an embodiment of the present application.

[0049] Figures 7A to 7C Schematically shown is a schematic diagram of a display device provided by an embodiment of the present application. Detailed implementation manners

[0050] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more complete and comprehensive, and will fully convey the concept of the example embodiments to those skilled in the art.

[0051] In addition, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application can be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the present application.

[0052] The block diagrams shown in the drawings are only functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0053] Figure 1 Schematically shown is a block diagram of an LED integrated control card provided by an embodiment of the present application.

[0054] As Figure 1 shown, the LED integrated control card 100 provided by the embodiment of the present application includes a signal transceiver 110, a data processing module 120, a storage module 130, a control module 140, and a power module 150. Among them, there are multiple signal transceivers 110, which are respectively arranged at the boundaries of the LED integrated control card 100, and one signal transceiver is arranged corresponding to one boundary. Exemplarily, Figure 1 the shown LED integrated control card 100 includes four boundaries. According to Figure 1The directions shown can be respectively denoted as the upper boundary, the lower boundary, the left boundary, and the right boundary. A signal transceiver 110 is provided at each boundary, so there are a total of four signal transceivers 110. A signal transceiver 110 is a device that can both send and receive detection signals. By transmitting and receiving detection signals through the signal transceiver 110, it can be determined whether there are other signal transceivers 110 around the signal transceiver 110, and thus whether there are other LED integrated control cards 100 near the current LED integrated control card 100, so that the positioning information of the LED integrated control card can be determined. The specific determination process of this positioning information will be described in subsequent embodiments.

[0055] The data processing module 120 is used to convert the display data signal in the first format into the display data signal in the second format, and the display data signal in the second format is used to enable the display device to perform data display. The data signals displayed on the LED display screen are sent by a dedicated data sending device. However, the display data signals in the first format (such as HDMI (High-Definition Multimedia Interface), DVI (Digital Visual Interface), VGA (Video Graphic Array), etc.) sent by the data sending device are usually not directly recognizable by the LED display screen. Therefore, the data processing module 120 performs data format conversion on it to obtain the display data signal in the second format, and the display data signal in the second format can be recognized by the driver board of the LED display screen, so as to drive the LED display screen to display the corresponding data content.

[0056] The storage module 130 is used to store the positioning information of the LED integrated control card 100.

[0057] The control module 140 is electrically connected to the data processing module 120, the signal transceiver 110, and the storage module 130 respectively, and is also communicatively connected to the data sending device. The control module 140 is used to send the display data signal in the first format to the data processing module 120, obtain the detection signal received by the signal transceiver 110, generate positioning information according to the detection signal, and send the positioning information to the storage module 130 for storage. The control module 140 is equivalent to the control center of the LED integrated control card 100, and it exchanges control commands and data with other modules and the data sending device.

[0058] The power supply module 150 is electrically connected to the control module 140, the data processing module 120, the signal transceiver 110, and the storage module 130 respectively, and is used to provide working voltage for each connected module.

[0059] In an embodiment of the present application, the detection signal emitted by the signal transceiver 110 propagates based on the emission direction. That is, the detection signal emitted by the signal transceiver 110 has a certain propagation direction, and only other signal transceivers 110 oppositely arranged in this propagation direction can receive the detection signal emitted by the corresponding signal transceiver 110. Further, to prevent multiple signal transceivers 110 in the same propagation direction from receiving the detection signal emitted by the same signal transceiver 110, the propagation range of the detection signal emitted by the signal transceiver 110 is set within a preset range, and the detection signal cannot propagate to areas beyond this preset range. Thus, the detection signal emitted by a certain signal transceiver 110 can be received by other signal transceivers 110 that are oppositely arranged in the signal propagation direction and within the preset range. It can be seen that if the signal transceiver 110 of an LED integrated control card 100 in a certain direction can receive the detection signal emitted by other signal transceivers 110, it indicates that there is another LED integrated control card 100 in the direction of this signal transceiver 110 of the LED integrated control card 100. Therefore, based on the signal transceiver 110, the position of the LED integrated control card 100 can be determined, which is beneficial for automatically realizing the screen connection operation of the LED display device without manual screen connection. Among them, the screen connection operation refers to splicing multiple LED display units together to form a large LED display screen, and correctly connecting the data transmission lines between each LED display unit so that the spliced large display screen can correctly display a complete picture.

[0060] In an embodiment of the present application, the detection signal emitted by the signal transceiver 110 can be an optical signal, an ultrasonic signal, etc.

[0061] In an embodiment of the present application, the data processing module 120 can be an FPGA (Field Programmable Gate Array) chip.

[0062] In an embodiment of the present application, the control module 140 can be an MCU (Micro Controller Unit) chip, which is used to identify the control commands transmitted by the data sending device, collect and process the interaction information between the signal transceiver of this LED integrated control card and the surrounding adjacent LED integrated control cards, and transmit all the information of this LED integrated control card back to the data sending device.

[0063] In one embodiment of the present application, the input end of the power supply module 150 is connected to the AC mains, and the output end is connected to each module in the LED integrated control card 100. The output end can also be connected to the LED light board to supply power to the light board. Generally, the voltage output by the output end of the power supply module 150 is a DC voltage. Thus, the power supply module 150 can achieve the AC-DC conversion between the AC mains and the DC voltage. Optionally, the power supply module 150 can include multiple output ends, and the DC voltages output by the multiple output ends can be different. Exemplarily, the power supply module 150 can convert the AC mains into a 5V DC voltage to supply power to the MCU chip, and at the same time can convert the AC mains into a 2.5V DC voltage to supply power to the FPGA chip.

[0064] In the technical solution provided by the embodiment of the present application, the LED integrated control card includes multiple signal transceivers, a data processing module, a storage module, a control module, and a power supply module. The positioning of the LED integrated control card can be achieved through the signal transceivers, the format conversion of the display data signal can be achieved through the data processing module, the data interaction and control between modules can be achieved through the control module, the data storage can be achieved through the storage module, and the power supply can be achieved through the power supply module. It can be seen that the LED integrated control card integrates signal transceivers, can automatically determine the position of the LED integrated control card, and then determine the position of the corresponding LED display unit, so as to realize the automatic screen connection operation of the display device formed by splicing multiple LED display units, making the screen connection process without manual operation and effectively improving the screen connection efficiency; at the same time, the LED integrated control card integrates all the functional components required for the LED display screen. Most of the materials of the LED display screen can be installed by installing the LED integrated control card, thus simplifying the installation steps of the LED display screen and improving the installation efficiency.

[0065] Figure 2 The schematic diagram of the display device provided by one embodiment of the present application is schematically shown.

[0066] As Figure 2 shown, the display device includes multiple LED display units 200. Among them, one LED display unit is equivalent to a LED display screen, and the multiple LED display units are arranged in an array, so as to be spliced into a large-area LED display device (or called a display screen).

[0067] In the display device provided by the embodiment of the present application, one LED integrated control card 100 ( Figure 2 briefly recorded as a control card) provided in any embodiment of the present application is correspondingly set for one LED display unit 200, and the multiple LED integrated control cards 100 corresponding to the multiple LED display units 200 are cascaded, so that the multiple LED display units 200 form a cascaded relationship. Exemplarily, as Figure 2As shown, the display data signal sent by the data sending device is input from the LED integrated control card 100 corresponding to one LED display unit 200, and is sequentially transmitted to the LED integrated control cards 100 of the remaining LED display units 200 through the cascading sequence, so that the LED display units corresponding to each LED display unit 200 display the corresponding content.

[0068] During the display process of the data, the data sending device usually needs to determine the position of the LED display unit in the entire display device, so as to send the corresponding display data signal to the LED display unit according to this position. Exemplarily, assuming that the screen of a display device is composed of 4 LED display units, then the positions of the 4 LED display units can be respectively recorded as upper left, upper right, lower left, and lower right, and the transmission direction of the display data signal is upper left → upper right → lower left → lower right. Then the data sending device first sends the display data signal in the upper left of the screen to the upper left LED display unit, and then sends the display data signal in the upper right of the screen to the upper right LED display unit, and so on, so that the 4 LED display units jointly form a complete display picture. This process of determining the positions of each LED display unit so that the display data signal is transmitted in each LED display unit to form a complete and accurate picture is called the screen connection operation of the display device. It should be noted that since the position of the LED display unit 200 corresponds one-to-one with the LED integrated control card 100, therefore, the position of the LED display unit 200 is actually also the position of the LED integrated control card 100, and determining the position of the LED display unit 200 is to determine the position of the LED integrated control card 100.

[0069] In the traditional technical solution, after the assembly of the display device is completed, usually each LED display unit 200 is displayed in the upper computer, and then the user manually connects the receiving cards (the devices in the LED display unit 200 for receiving and transmitting display data signals) in each LED display unit 200, so that the data sending device can know the positions of each LED display unit 200 and realize the screen connection operation. The screen connection efficiency of this screen connection method is relatively low. In the technical solution of the present application, the LED integrated control card 100 in the display device can be positioned by the detection signal received by the signal transceiver, so that the automatic configuration of the position of the LED integrated control card 100 can be realized without manual operation by the user, greatly improving the screen connection efficiency of the display device. At the same time, the LED integrated control card 100 integrates a signal transceiver, a data processing module, a storage module, a control module, and a power module, so that during the assembly process of the display device, there is no need to install each module separately. As long as the signal connection lines, power lines between the display units and the connection with the data sending device are completed, the assembly of the display device can be completed, simplifying the assembly process of the display device and improving the assembly efficiency.

[0070] In one embodiment of the present application, the data sending device can send the display data signal through multiple data sending ports. In the display device, multiple LED display units 200 can be divided into multiple display unit groups. One display unit group is used to receive the display data signal sent by one data sending port of the data sending device. Each LED display unit 200 in one display unit group forms a cascading relationship, and the LED display units 200 in different display unit groups do not form a cascading relationship. Exemplarily, Figure 3 Schematically shows a schematic diagram of a display device provided by an embodiment of the present application, as Figure 3 shown, the display device includes 2 display unit groups, corresponding to two data sending ports of the data sending device.

[0071] Figure 4 Schematically shows a flowchart of a display method of a display device provided by an embodiment of the present application. The display device can be the display device provided by any embodiment of the present application. The method can be implemented by the display device or by the data sending device. Hereinafter, the data sending device will be used as the execution subject to illustrate the specific implementation process of the method.

[0072] As Figure 4 shown, the display method of the display device provided by the embodiment of the present application includes steps 410 to 430, specifically as follows:

[0073] Step 410: For each data sending port of the data sending device, determine the first position coordinates of each cascaded LED display unit connected to the data sending port. The first position coordinates represent the data sending port corresponding to the LED display unit and the cascading order.

[0074] Specifically, the display data signals sent by different data sending ports of the data sending device are different. Therefore, the specific port corresponding to the LED display unit is crucial for determining the specific position of the LED display unit. In this embodiment, the position coordinates related to the port connected to the LED display unit are denoted as the first position coordinates. The first position coordinates not only represent the data sending port connected to the LED display unit, but also represent its cascading order. The cascading order of the LED display unit refers to the arrangement order of the LED display unit in a group of cascaded LED display units connected to this data sending port.

[0075] In an embodiment of the present application, according to the meaning of the first position coordinate, the first position coordinate includes two parts. The part representing the data transmission port corresponding to the LED display unit in the first position coordinate is denoted as the first port coordinate value, and the part representing the cascading order of the LED display units in the first position coordinate is denoted as the second port coordinate value. Thus, the process of determining the first position coordinate of an LED display unit specifically includes: using the port identifier of the data transmission port as the first port coordinate value in the first position coordinate of the LED display unit; using the cascading order of the LED display unit among all cascaded LED display units as the second port coordinate value in the first position coordinate of the LED display unit; generating the first position coordinate of the LED display unit according to the first port coordinate value and the second port coordinate value.

[0076] Specifically, use the port identifier of the data transmission port connected to the LED display unit as the first port coordinate value in its first position coordinate, and use its cascading order as the second port coordinate value. Assume that L(a, b) represents the first position coordinate of the LED display unit. Exemplarily, as Figure 3 shown in the display device, the first data transmission port of the data transmission device is denoted as network port 1, that is, the port identifier is 1. Among a group of cascaded LED display units connected to network port 1, the fourth LED display unit in the second row of the array (denoted as LED display unit A24) is the first LED display unit, that is, the cascading order of LED display unit A24 is 1. Then the first position coordinate of LED display unit A24 is denoted as L(1, 1). The LED display unit A23 to the left of LED display unit A24 is the second LED display unit connected to network port 1. Then the first position coordinate of LED display unit A23 is denoted as L(1, 2). LED display unit A34 is the first LED display unit connected to network port 2. Then the first position coordinate of LED display unit A34 is denoted as L(2, 1). And so on, traverse all LED display units and set the corresponding first position coordinates.

[0077] Step 420: Determine the second position coordinates of each cascaded LED display unit according to the first position coordinates of each cascaded LED display unit. The second position coordinates represent the physical position of the LED display unit in the display device.

[0078] Specifically, the first position coordinate can only show the connected data transmission port and the cascading order. The specific content to be displayed by the LED display unit can only be determined by the physical position of the LED display unit in the display device. Therefore, after determining the first position coordinate, based on the first position, set the second position coordinate for the LED display unit to reflect the physical position of the LED display unit in the display device.

[0079] In an embodiment of the present application, the second position coordinate also includes two parts, denoted as the first physical coordinate value and the second physical coordinate value respectively, and is expressed as P(x, y). The data sending device has multiple data sending ports. When determining the second position coordinate, it is set separately for each LED display unit connected to each data sending port. Specifically: from the multiple LED display units connected to the multiple data sending ports of the data sending device, select one LED display unit. If this LED display unit has a second position coordinate, then use this LED display unit as the starting display unit; then, according to the first position coordinates of the multiple LED display units cascaded by the starting display unit, traverse the multiple LED display units in sequence to determine the second position coordinates of each LED display unit according to the detection signals of the signal transceivers in each LED display unit; after the traversal of the multiple LED display units corresponding to the starting display unit is completed, remove the data sending port connected to the starting display unit from the multiple data sending ports, and return to the step of selecting one LED display unit from the multiple LED display units connected to the multiple data sending ports of the data sending device as the starting display unit.

[0080] In this embodiment, the second position coordinate of the initially selected starting display unit includes a first preset physical coordinate value and a second preset physical coordinate value. That is, from the first LED display units connected to the multiple data sending ports respectively, select one and assign it an initial second position coordinate, and this initial second position coordinate is two preset physical coordinate values. Exemplarily, for the display device shown as Figure 3 If the first LED display unit A24 connected to network port 1 is used as the starting display unit for the first time, then the second position coordinate of this starting display unit is a preset value. Assuming that both the first preset physical coordinate value and the second preset physical coordinate value are 0, then the second position coordinate of LED display unit A24 is P(0, 0). Starting from this starting display unit, traverse each LED display unit cascaded by this starting display unit in the order of the change of the first position coordinate, and determine the second position coordinates of each LED display unit according to the detection signals of the signal transceivers in the LED display units.

[0081] After the traversal of each LED display unit cascaded by this starting display unit is completed, use the first display unit connected to another data sending port as the starting display unit, and continue to traverse each LED display unit cascaded by this starting display unit to determine the corresponding second position coordinates. Among them, when using the first display unit connected to another data sending port as the starting display unit, since this is no longer the first time to select the starting display unit, the second position coordinate of the starting display unit is no longer a set value, but the coordinate value set based on the previous round of traversal process.

[0082] Considering that the previous traversal process may not set the second position coordinates for the first display unit connected to all other data transmission ports, during the next traversal, after selecting the first LED display unit connected to another data transmission port as the starting display unit, it is possible to detect whether the starting display unit has the second position coordinates. If it does, the validity of the starting display unit is confirmed, and the traversal of the cascaded LED display units in this group continues; if not, another first LED display unit connected to a data transmission port is reselected as the starting display unit, and it is continuously determined whether it has the second position coordinates. That is to say, during the next traversal process, the LED display unit with the second position coordinates already determined should be used as the starting display unit.

[0083] In an embodiment of the present application, since the multiple LED display units cascaded by the starting display unit all belong to the LED display units connected to the same data transmission port, the first coordinate values in the first position coordinates of each LED display unit are the same. Then, during the traversal process, the multiple LED display units cascaded by the starting display unit are traversed in ascending order of the second coordinate values in the first position coordinates. Assuming that the difference in the second coordinate values between two adjacent LED display units is 1, if the first position coordinate of the current LED display unit is L(a,b), then the first position coordinate of the next LED display unit is L(a,b + 1). The LED integrated control card includes signal transceivers arranged at the four boundaries of up, down, left, and right. The traversal process is actually to set the second position coordinates for the adjacent LED display units according to the detection signals of the signal transceivers in the current LED display unit, including the following four cases:

[0084] 1. If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the upper boundary signal transceiver, the first physical coordinate value of the current LED display unit is used as the first physical coordinate value of the adjacent LED display unit above the current LED display unit, and the second physical coordinate value of the current LED display unit is increased by a predetermined value and used as the second physical coordinate value of the adjacent LED display unit above the current LED display unit;

[0085] 2. If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the lower boundary signal transceiver, the first physical coordinate value of the current LED display unit is used as the first physical coordinate value of the adjacent LED display unit below the current LED display unit, and the second physical coordinate value of the current LED display unit is decreased by a predetermined value and used as the second physical coordinate value of the adjacent LED display unit below the current LED display unit;

[0086] 3. If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the left boundary signal transceiver, then increase the first physical coordinate value of the current LED display unit by a predetermined value and use it as the first physical coordinate value of the adjacent LED display unit located to the left of the current LED display unit, and use the second physical coordinate value of the current LED display unit as the second physical coordinate value of the adjacent LED display unit located to the left of the current LED display unit;

[0087] 4. If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the right boundary signal transceiver, then decrease the first physical coordinate value of the current LED display unit by a predetermined value and use it as the first physical coordinate value of the adjacent LED display unit located to the right of the current LED display unit, and use the second physical coordinate value of the current LED display unit as the second physical coordinate value of the adjacent LED display unit located to the right of the current LED display unit.

[0088] Exemplarily, assume that the second position coordinate of the current LED display unit is P(x, y). If the upper boundary signal transceiver of the current LED display unit receives a detection signal, based on the characteristic that the signal transceiver propagates linearly along the emission direction, it can be determined that there is an adjacent LED display unit above the current LED display unit (the detection signal received by the upper boundary signal transceiver of the current LED display unit is the detection signal emitted by the lower boundary signal transceiver of the adjacent LED display unit above it). Then, the second position coordinate of the adjacent LED display unit above is denoted as P(x, y + set value). If the set value is 1, the second position coordinate of the adjacent LED display unit above is denoted as P(x, y + 1). The setting principle of the second position coordinates of the adjacent LED display units in other directions is similar. Generally speaking, the second position coordinate of the adjacent LED display unit below the current LED display unit is denoted as P(x, y - set value), the second position coordinate of the adjacent LED display unit to the left of the current LED display unit is denoted as P(x + set value, y), and the second position coordinate of the adjacent LED display unit to the right of the current LED display unit is denoted as P(x - set value, y).

[0089] In an embodiment of the present application, the detection signal of the signal transceiver of the current LED display unit further includes the first position coordinate of the adjacent LED display unit, so as to facilitate identifying which specific LED display unit the adjacent LED display unit is.

[0090] In one embodiment of the present application, during the traversal process, if it is determined that the adjacent LED display unit of the current LED display unit has been set with the second position coordinate, the adjacent LED display unit is skipped; and / or, if the signal transceiver in the specified direction of the current LED display unit does not receive a detection signal, it is recorded that there is no LED display unit in the specified direction of the current LED display unit; wherein the specified direction is any one of up, down, left, and right. That is, the second position coordinate is not repeatedly set for the LED display unit that has already been set with the second position coordinate, and if it is detected that there is no adjacent LED display unit around a certain LED display unit, a record is made.

[0091] Exemplarily, for Figure 5 the display device shown, the data sending device includes 3 data sending ports. Assume that the cascaded LED display units connected to Network Port 1 are traversed first. The LED display unit A24 is the first selected display unit, and its second position coordinate is set to a predetermined value P(0,0). Based on the signal transceivers in each direction in the LED integrated control card of the LED display unit A24, it can be detected that there are adjacent LED display units in the upper, left, and lower directions of it, and the corresponding second position coordinates are set respectively (corresponding to the aforementioned directions, the set value is 1): P(0,1), P(1,0), P(0, -1). After traversing the multiple cascaded LED display units corresponding to the LED display unit A24, continue to select a starting display unit from the LED display units connected to Network Port 2 and Network Port 3. At this time, the LED display unit A44 connected to Network Port 2 does not have the second position coordinate, and the LED display unit A34 connected to Network Port 3 has the second position coordinate. Therefore, the LED display unit A34 connected to Network Port 3 is selected as the starting display unit to continue the traversal.

[0092] Step 430: According to the first position coordinate and the second position coordinate of each cascaded LED display unit, send corresponding display data signals to each cascaded LED display unit, so that each cascaded LED display unit drives the display device to perform data display based on its respective display data signal.

[0093] Specifically, after determining the first position coordinate and the second position coordinate of each LED display unit, the position of the LED display unit in the display device and the specific content to be displayed by it can be uniquely determined, thus realizing the automatic screen connection function. Then, according to these two coordinates, the display data signal is sent, so that the display device can display a complete and accurate content picture.

[0094] In the embodiments of the present application, the first position coordinate and the second position coordinate of the LED display unit can be obtained by data processing of the LED integrated control card (for example, calculated by the control module therein), and then sent to the data sending device; alternatively, the LED integrated control card can send the detected signal to the data sending device, and the data sending device analyzes and calculates the first position coordinate and the second position coordinate.

[0095] In the technical solution provided by the embodiments of the present application, the first position coordinate is set according to the data sending port and the cascading order of the cascaded LED display units, and then the second position coordinate is set according to the signal detected by the signal transceiver of the LED integrated control card of the LED display unit. Based on these two coordinates, the position of the LED display unit in the display device and the specific content to be displayed can be uniquely determined, thus realizing the automatic screen connection function without manual operation by the user, thereby simplifying the screen connection steps and improving the screen connection efficiency.

[0096] The following combines Figure 6 、 Figures 7A to 7C , and takes a specific embodiment to illustrate the implementation process of the technical solution of the present application.

[0097] Figure 6 Schematically shows a flowchart of a display method of a display device provided by an embodiment of the present application. Figures 7A to 7C Schematically shows a schematic diagram of a display device provided by an embodiment of the present application. In the display device shown in Figures 7A to 7C , the LED display unit represents the LED display unit in the present application, the integrated control card represents the LED integrated control card in the present application, the sending box represents the data sending device in the present application, the network port represents the data sending port in the present application, and the upper computer is equivalent to the signal source of the display data signal sent by the sending box in this embodiment. Each LED display unit only needs to be configured with an LED integrated control card provided by any embodiment of the present invention, and the display unit integrated control cards are cascaded to the network port of the sending box by signal connection, and the upper computer and the sending box are cascaded to complete the installation of the entire display device.

[0098] As Figure 6 shown, the display method of the display device includes the following steps:

[0099] S1. Each integrated control card stores two sets of coordinate parameters at the same time, one set is the network port coordinate L(a, b), and the other set is the physical position coordinate P(x, y). Among them, the network port coordinate L(a, b) represents the first position coordinate in the present application, and the physical position coordinate P(x, y) represents the second position coordinate in the present application.

[0100] As Figure 7AAs shown in the figure, the sending box includes two network interfaces: Network Interface 1 and Network Interface 2. The LED display units in the display device are arranged in a 4*4 array. Network Interface 1 is connected to the LED display units in the first two rows of the array, and Network Interface 2 is connected to the LED display units in the last two rows of the array. Each LED display unit needs to be configured with the first position coordinate information L(a, b) and the second position coordinate P(x, y).

[0101] S2. Read the number of control cards connected to the network interfaces of all sending boxes and assign the network interface coordinates L(a, b) of the display units to the corresponding control cards.

[0102] The sending box reads the number of integrated control cards carried by each network interface and assigns the network interface coordinate information L(a, b) to the cascaded integrated control cards according to the network interface connection order. Among them, the value of a in the network interface coordinates represents the network interface identifier, that is, if the integrated control card cascaded network interface is Network Interface 1, the value of a corresponding to the network interface coordinates is 1; the value of b in the network interface coordinates represents the cascading order of this integrated control card. After assigning the network interface coordinates to each display unit among Figure 7A them, we get Figure 7B the schematic diagram shown in Figure 7B For example, in the figure, the integrated control card with network interface coordinates L(1, 8) represents the 8th display unit cascaded by Network Interface 1.

[0103] S3. Starting from the integrated control card with Network Interface 1 connected to the first one, that is, the network interface coordinates are L(1, 1), assign the physical position coordinates P(0, 0). Read the network interface coordinates of the display units around this control card through the signal transceiver and transmit them to the sending box for positioning and identification. At this time, the sending box can know the physical coordinates and network interface coordinates corresponding to the display units around the L(1, 1) display unit.

[0104] Specifically, the integrated control cards communicate with each other through the signal transceivers around them to read the network interface coordinate information in the integrated control cards of the surrounding display units and transmit it to the sending box for information identification and processing: When the integrated control card detects the network interface coordinates of the integrated control card of the upper display unit from the upper signal transceiver and transmits it back to the sending box, then assign the physical coordinate value of the upper display unit as the y value in the original point physical coordinates plus 1, and the x value in the horizontal direction remains unchanged. That is, at this time, the sending box identifies the physical coordinates of the upper integrated control card as P(0, 1). At this time, the sending box can know the network interface coordinates and physical coordinate information corresponding to the upper display unit; if there is no display unit above, the sending box can record that there is no display unit at the original point.

[0105] Perform the interaction operations of the signal transceivers below, to the left, and to the right in sequence according to the foregoing operations, and the corresponding physical coordinates and network port coordinates of up to four adjacent display units around the original point display unit can be confirmed. Specifically, if the integrated control card information is detected by the signal transceiver below, the corresponding physical coordinate value is the y value in the original point physical coordinate minus 1, and the x value in the horizontal direction remains unchanged; if the integrated control card information is detected by the signal transceiver to the left, the corresponding physical coordinate value is the x value in the original point physical coordinate minus 1, and the y value in the vertical direction remains unchanged; if the integrated control card information is detected by the signal transceiver to the right, the corresponding physical coordinate value is the x value in the original point physical coordinate plus 1, and the y value in the vertical direction remains unchanged.

[0106] S4. The sending box reads and collects all the physical coordinates and network port coordinate information of the integrated control cards in sequence according to the network port coordinates through the integrated control card signal transceiver.

[0107] Specifically, after repeating the above operations with the network port coordinate L(1, 2), the corresponding physical coordinates and network port coordinates of up to four adjacent display units around the corresponding display unit can also be obtained.

[0108] S5. After confirming all the network port coordinates and physical coordinates of the integrated control cards of the entire screen, when the sending box detects that the quantity of the material coordinates of the integrated control cards of the entire screen is consistent with the quantity of the network port coordinates, the automatic positioning ends.

[0109] Repeat the operations according to the foregoing operations until all the physical coordinates and network port coordinates of all the display units of the display device are recognized and recorded by the sending box. When the sending box detects that the quantity of all the physical coordinates is consistent with the quantity of the network port coordinates, all the integrated control cards have completed the positioning of the entire screen, and the schematic diagram as Figure 7C shown is obtained.

[0110] S6. The sending box sends the corresponding physical coordinate P(x, y) to the integrated control card at the corresponding network port coordinate L(a, b) according to the network port coordinates and physical coordinate information of the integrated control cards of the entire screen that have been collected. The integrated control card can identify the required display screen information according to the physical coordinates and network port coordinates, and at this time, the automatic screen connection is completed.

[0111] The technical solution of this application is mainly applied to the assembly of LED display large screens. After the signal connection lines, power supply cables of all the display units and the connection with the sending box are completed, the integrated control card identifies the physical positions of the integrated control cards connected to its surroundings through the signal transceiver and feeds them back to the sending box, realizing the automatic screen connection operation of the display large screen, without the need for manual screen connection operation on the upper computer software.

[0112] Other embodiments of the present application will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common knowledge or conventional technical means in the technical field not disclosed in the present application.

[0113] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. An LED integrated control card, characterized in that: include: A plurality of signal transceivers, the signal transceivers are used to send and / or receive detection signals, wherein the sent and / or received detection signals are used to determine the positioning information of the LED integrated control card; the signal transceivers are arranged at the boundaries of the LED integrated control card, and one signal transceiver is arranged corresponding to one boundary; a data processing module, configured to convert a display data signal in a first format into a display data signal in a second format, wherein the display data signal in the second format is used to enable a display device to display data; A storage module, used for storing the positioning information of the LED integrated control card; a control module, electrically connected to the data processing module, the signal transceiver and the storage module respectively, and also in communication connection with a data sending device, wherein the data sending device is used to send a display data signal in the first format; the control module is used to send the display data signal in the first format to the data processing module, obtain a detection signal received by the signal transceiver, generate the positioning information according to the detection signal, and send the positioning information to the storage module; A power supply module is electrically connected to the control module, the data processing module, the signal transceiver and the storage module respectively, and is used to provide working voltage for the connected modules.

2. The LED integrated control card according to claim 1, characterized in that: The detection signal sent by the signal transceiver is propagated based on the sending direction.

3. A display device, characterized in that: include: A plurality of LED display units, wherein the plurality of LED display units are arranged in an array; A plurality of LED integrated control cards, one of the LED integrated control cards is arranged corresponding to one of the LED display units; the LED integrated control card is the LED integrated control card as claimed in any one of claims 1 to 2, and the plurality of LED integrated control cards corresponding to the plurality of LED display units are cascade-connected.

4. The display device according to claim 3, characterized in that The data processing module in the LED integrated control card of the previous LED display unit is connected to the data processing module in the LED integrated control card of the next LED display unit, so that a plurality of LED integrated control cards are cascade-connected.

5. The display device according to claim 3, characterized in that The display device is connected to a data sending device, and the data sending device includes multiple data sending ports; the display device includes multiple display unit groups, and one of the display unit groups is connected to one of the data sending ports of the data sending device; one of the display unit groups includes multiple LED display units, and the multiple LED display units in one of the display unit groups form a cascade relationship.

6. A display method of a display device, characterized in that: The display device is the display device according to any one of claims 3 to 5; and the method comprises: For each data transmission port of the data transmission device, determine the first position coordinates of each cascaded LED display unit connected to the data transmission port, wherein the first position coordinates represent the data transmission port and the cascade sequence corresponding to the LED display unit; Determine the second position coordinates of each cascaded LED display unit according to the first position coordinates of each cascaded LED display unit, wherein the second position coordinates represent the physical position of the LED display unit in the display device; According to the first position coordinates and the second position coordinates of each cascaded LED display unit, a corresponding display data signal is sent to each cascaded LED display unit, so that each cascaded LED display unit displays data based on its own display data signal.

7. The display method of the display device according to claim 6, characterized in that: Determining the first position coordinates of each cascaded LED display unit connected to the data transmission port includes: Using the port identifier of the data transmission port as the first port coordinate value in the first position coordinate of the LED display unit; Using the cascade sequence of the LED display units in each cascaded LED display unit as the second port coordinate value in the first position coordinate of the LED display unit; The first position coordinates of the LED display unit are generated according to the first port coordinate value and the second port coordinate value.

8. The display method of the display device according to claim 6, characterized in that: Determining the second position coordinates of each cascaded LED display unit according to the first position coordinates of each cascaded LED display unit includes: Selecting an LED display unit from a plurality of LED display units connected to a plurality of data transmission ports of the data transmission device, and if the LED display unit has a second position coordinate, taking the LED display unit as the starting display unit; wherein the second position coordinate of the LED display unit selected for the first time includes a first preset physical coordinate value and a second preset physical coordinate value; According to the first position coordinates of the multiple LED display units cascaded by the starting display unit, the multiple LED display units are traversed in sequence to determine the second position coordinates of each LED display unit according to the detection signal of the signal transceiver in each LED display unit; After traversal of multiple LED display units corresponding to the starting display unit is completed, the data sending port connected to the starting display unit is removed from the multiple data sending ports, and the step of returning to select one LED display unit as the starting display unit from the multiple LED display units connected to the multiple data sending ports of the data sending device.

9. The display method of the display device according to claim 8, characterized in that: The LED integrated control card includes signal transceivers arranged at four boundaries: upper, lower, left, and right. The first position coordinates of the LED display unit include a first port coordinate value and a second port coordinate value. The second position coordinates of the LED display unit include a first physical coordinate value and a second physical coordinate value. According to the first position coordinates of the plurality of LED display units cascaded by the starting display unit, the plurality of LED display units are sequentially traversed to determine the second position coordinates of each LED display unit according to the detection signal of the signal transceiver in each LED display unit, including: Starting from the starting display unit, determining the current LED display unit according to the second port coordinate values ​​of the plurality of LED display units cascaded by the starting display unit in ascending order; If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the upper boundary signal transceiver, the first physical coordinate value of the current LED display unit is used as the first physical coordinate value of the adjacent LED display unit located above the current LED display unit, and the second physical coordinate value of the current LED display unit is increased by a predetermined value as the second physical coordinate value of the adjacent LED display unit located above the current LED display unit; If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the lower boundary signal transceiver, the first physical coordinate value of the current LED display unit is used as the first physical coordinate value of the adjacent LED display unit located below the current LED display unit, and the second physical coordinate value of the current LED display unit is reduced by a predetermined value as the second physical coordinate value of the adjacent LED display unit located below the current LED display unit; If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the left boundary signal transceiver, the first physical coordinate value of the current LED display unit is increased by a predetermined value as the first physical coordinate value of the adjacent LED display unit located to the left of the current LED display unit, and the second physical coordinate value of the current LED display unit is used as the second physical coordinate value of the adjacent LED display unit located to the left of the current LED display unit; If the detection signal received by the LED integrated control card of the current LED display unit is the detection signal received by the right boundary signal transceiver, the first physical coordinate value of the current LED display unit is reduced by a predetermined value as the first physical coordinate value of the adjacent LED display unit located to the right of the current LED display unit, and the second physical coordinate value of the current LED display unit is used as the second physical coordinate value of the adjacent LED display unit located to the right of the current LED display unit.

10. The display method of the display device according to claim 9, characterized in that: In the process of determining the second position coordinates of the adjacent LED display unit of the current LED display unit according to the detection signal received by the LED integrated control card of the current LED display unit, the method further includes: If it is determined that the adjacent LED display unit of the current LED display unit has been set to the second position coordinate, skipping the adjacent LED display unit; and / or If the signal transceiver in the specified direction of the current LED display unit does not receive the detection signal, it is recorded that there is no LED display unit in the specified direction of the current LED display unit; wherein the specified direction is any direction of up, down, left, and right.

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