LED display screen control method and device for real-time voltage regulation and medium

Abstract

The invention discloses an LED display screen control method and device for real-time voltage regulation and a medium, and relates to the technical field of LED display screens. The method comprises the steps that first voltage is provided for a red LED lamp bead set through an independent power supply channel, and second voltage is provided for a blue-green LED lamp bead set through an independent power supply channel; acquiring a video stream, decoding the video stream, intercepting a video frame picture, and recording a picture intercepting moment; dividing the video frame picture to obtain a grid picture, and calculating a power demand ratio of red pixels to blue-green pixels in the grid picture; generating a voltage regulation instruction according to the power demand ratio and the real-time temperature data, and recording a voltage regulation instruction generation moment; and calculating the time delay of the picture interception moment and the voltage regulation instruction generation moment, and delaying the voltage regulation instruction so as to synchronously act on the LED display screen with the corresponding video frame picture. According to the method, the color separation independent power supply channel is combined with the picture gridding RGB power demand calculation, so that the output voltage is matched with the real power consumption of different color areas in real time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of LED display screens, and particularly relates to an LED display screen control method for real-time voltage regulation, equipment and a medium. BACKGROUND

[0002] As a display device widely used in advertising, information display, traffic indication and other fields, LED display screens have the advantages of high brightness, long service life, low power consumption and wide viewing angle, and play a key role in the information dissemination of modern society. However, with the increasing complexity and diversity of application scenarios and the increasing requirements of users for display effect and energy saving, the existing LED display screen control system exposes many problems. In the traditional LED display screen power supply scheme, a fixed voltage power supply mode is generally adopted.

[0003] However, the forward voltage drop of the LED lamp bead drifts with the change of the ambient temperature, and the voltage drop decreases when the temperature rises, which leads to the risk of overcurrent, and the voltage drop increases when the temperature decreases, which causes insufficient brightness; the existing brightness adjustment only relies on ambient light or manual setting, and does not consider the difference in picture RGB composition; there is a time sequence deviation between voltage regulation and picture display, which leads to a sharp increase in instantaneous power consumption or display abnormalities. The color separation power supply only solves the problem of the basic circuit, and does not establish a real-time mapping between picture content and power supply voltage; Through the above analysis, the existing technology has the problems and defects that: The LED display screen power supply in the prior art cannot solve the multi-dimensional dynamic matching of the power supply voltage to the display content and the ambient temperature, and ensure the strict synchronization of the voltage regulation instruction and the video frame. SUMMARY

[0004] The embodiments of the present application provide an LED display screen control method for real-time voltage regulation, equipment and a medium, which can solve the problem that the LED display screen power supply in the prior art cannot solve the multi-dimensional dynamic matching of the power supply voltage to the display content and the ambient temperature, and ensure the strict synchronization of the voltage regulation instruction and the video frame.

[0005] In a first aspect, the embodiments of the present application provide a LED display screen control method for real-time voltage regulation, the method comprising: providing a first voltage to a red LED lamp bead group and a second voltage to a blue-green LED lamp bead group through independent power supply channels; obtaining a video stream, decoding the video stream, and intercepting a video frame picture, and recording a picture interception time; dividing the video frame picture to obtain a grid picture, and calculating a power demand ratio of red pixels to blue-green pixels in the grid picture; generating a voltage regulation instruction according to the power demand ratio and real-time temperature data, and recording a voltage regulation instruction generation time, wherein the voltage regulation instruction comprises a first voltage regulation instruction for matching the first voltage and a second voltage regulation instruction for matching the second voltage; and calculating a time delay of the picture interception time and the voltage regulation instruction generation time, and delaying the voltage regulation instruction to act on the LED display screen synchronously with the corresponding video frame picture.

[0006] In an implementation manner of the present application, the video frame picture is divided to obtain the grid picture, specifically comprising: detecting a distribution density of high-frequency details in the video frame picture, and obtaining a high-density area and a low-density area through a preset distribution density threshold; using a minimum pixel grid in the high-density area, using an adaptive extended grid in the low-density area, and performing cross-grid merging calculation on a pure color area.

[0007] In an implementation manner of the present application, the power demand ratio of the red pixels to the blue-green pixels in the grid picture is calculated, specifically comprising: extracting channel values of the red pixels and the blue-green pixels in the grid picture to obtain red channel values and blue-green channel values; converting the red channel values into first theoretical power consumption according to a current, brightness and voltage relationship of the red LED lamp bead; merging and converting the blue-green channel values into second theoretical power consumption according to a current, brightness and voltage relationship of the blue-green LED lamp bead; and generating the power demand ratio according to a ratio of the first theoretical power consumption to the second theoretical power consumption.

[0008] In an implementation manner of the present application, the video stream is obtained, the video stream is decoded, the video frame picture is intercepted, and the picture interception time is recorded, specifically comprising: synchronously buffering next frame video data when the current video frame picture is intercepted; analyzing an RGB histogram similarity of the current video frame picture and the next frame video data; when the similarity is greater than a similarity threshold, simultaneously applying the voltage regulation instruction generated by the current video frame picture to the next frame video data; and when the similarity is less than or equal to the similarity threshold, starting real-time voltage regulation calculation of the next frame video data.

[0009] In an implementation manner of the present application, the processing time delay from the picture interception to the voltage regulation instruction generation is calculated, specifically comprising: presetting a safety margin time, obtaining a total delay according to the processing time delay and the safety margin time; and adjusting a next frame grid division granularity according to the total delay.

[0010] In an implementation form of the present application, before the video stream is acquired and decoded, the method further comprises: detecting an ambient illumination value and corresponding time data by an optical sensor; generating a basic brightness coefficient according to the illumination value and the time data; and applying a preset multiple of brightness scaling to the video stream when the video stream is decoded.

[0011] In an implementation form of the present application, the basic brightness coefficient is generated according to the illumination value and the time data, specifically comprising: when the illumination value is greater than a threshold value, the basic brightness coefficient adopts a maximum value; and when the illumination value is less than or equal to the threshold value, the basic brightness coefficient is calculated according to the ratio of the actual illumination intensity to the critical value.

[0012] In an implementation form of the present application, after the time delay between the picture interception time and the voltage regulation instruction generation time is calculated and the voltage regulation instruction is delayed, the method further comprises: monitoring the current feedback values of the first voltage and the second voltage; when the deviation between the actual current and the theoretical current lasts for more than a preset time length, switching to a fixed safety voltage mode and generating an alarm log; and updating the current, brightness and voltage relationship based on historical current data.

[0013] In a second aspect, the embodiments of the present application also provide a LED display screen control device for real-time voltage regulation, comprising at least one processor; and a memory in communication connection with the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to: provide a first voltage to a red LED lamp bead group and a second voltage to a blue-green LED lamp bead group through independent power supply channels respectively; acquire a video stream, decode the video stream, intercept a video frame picture, and record a picture interception time; divide the video frame picture to obtain a grid picture, and calculate a power demand ratio of red pixels to blue-green pixels in the grid picture; generate a voltage regulation instruction according to the power demand ratio and real-time temperature data, and record a voltage regulation instruction generation time, wherein the voltage regulation instruction comprises a first voltage regulation instruction and a second voltage regulation instruction, the first voltage regulation instruction is used to match the first voltage, and the second voltage regulation instruction is used to match the second voltage; calculate a time delay between the picture interception time and the voltage regulation instruction generation time, and delay the voltage regulation instruction to act on the LED display screen synchronously with the corresponding video frame picture.

[0014] In a third aspect, the embodiments of the present application also provide a non-volatile computer storage medium for controlling an LED display screen in real-time voltage regulation, which stores computer executable instructions. The computer executable instructions are configured to: provide a first voltage to a red LED lamp bead group and a second voltage to a blue-green LED lamp bead group through independent power supply channels; acquire a video stream, decode the video stream, and intercept a video frame picture, and record a picture interception time; divide the video frame picture to obtain a grid picture, and calculate a power demand ratio of red pixels to blue-green pixels in the grid picture; generate a voltage regulation instruction according to the power demand ratio and real-time temperature data, and record a voltage regulation instruction generation time, wherein the voltage regulation instruction includes a first voltage regulation instruction and a second voltage regulation instruction, the first voltage regulation instruction is used to match the first voltage, and the second voltage regulation instruction is used to match the second voltage; calculate a time delay of the picture interception time and the voltage regulation instruction generation time, and delay the voltage regulation instruction to act on the LED display screen synchronously with the corresponding video frame picture.

[0015] The LED display screen control method, device and medium provided by the embodiments of the present application can make the output voltage match the real power consumption of different color regions in real time by the independent power supply channels combined with the grid RGB power demand calculation of the picture; the automatic response of the brightness coefficient a to the day-night alternation and the sunny and cloudy environment is realized based on the space-time modeling of the optical sensor and the RTC; the high-frequency detail region adopts the fine-grained grid, and the pure color region is combined across the grid, so as to reduce the AI processing load; the cross-frame similarity detection mechanism skips the repeated picture voltage regulation calculation, so as to reduce the system response delay; the current feedback real-time calibration theoretical power consumption model is combined with the dynamic voltage boundary protection, so as to completely eliminate the risk of lamp bead overvoltage / undervoltage caused by temperature drift. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application and illustrate the exemplary embodiments of the present application and their descriptions serve to explain the present application and do not constitute improper limitations on the present application. In the drawings: Figure 1 A flowchart of the LED display screen control method for real-time voltage regulation provided by the embodiments of the present application; Figure 2 A display screen control system block diagram of the LED display screen control method for real-time voltage regulation provided by the embodiments of the present application; Figure 3 An internal structure schematic diagram of the LED display screen control device for real-time voltage regulation provided by the embodiments of the present application. DETAILED DESCRIPTION

[0017] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely below in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0018] The embodiments of the present application provide an LED display screen control method for real-time voltage regulation, equipment and medium, which solves the problem that the power supply of the LED display screen in the prior art cannot solve the multi-dimensional dynamic matching of the display content and the environmental temperature with the power supply voltage, and ensures the strict synchronization of the voltage regulation instruction and the video frame.

[0019] The technical solutions of the embodiments of the present application will be described in detail below with reference to the drawings.

[0020] Figure 1 A flow chart of an LED display screen control method for real-time voltage regulation is provided in the embodiments of the present application. As shown in Figure 1 The LED display screen control method for real-time voltage regulation provided in the embodiments of the present application specifically includes the following steps: Step 10: providing a first voltage DC(ADJ1) to the red LED lamp bead group and a second voltage DC(ADJ2) to the blue-green LED lamp bead group through independent power supply channels respectively.

[0021] In the embodiments of the present application, as shown in Figure 2As shown, the control system includes a main control module, a switching power supply module, a DC / DC conversion module, a decoding module, an image acquisition module, an AI image processing module, a delay module, a sending module, a receiving module, a sensor module, an RTC (Real-Time Clock Module) module, a network module, and an LED display screen. The main control module is the core module of the control system, used for receiving audio and video code streams, issuing PWM (Pulse Width Modulation Control Signal) control signals, and processing and judging information parameters uploaded by the sensor module, the RTC module, and the AI image processing module. The main control module is electrically connected with the decoding module, the image processing module, the delay module, the sensor module, the RTC module, and the network module. The switching power supply module is a functional module for converting 220V AC power supply into 48V DC power supply output, and provides power supply for the DC / DC conversion module, the LED display screen, the main control module, and other modules of the system. The DC / DC conversion module includes a DC / DC-1 conversion module, a DC / DC-2 conversion module, and a DC / DC-3 conversion module. The DC / DC-1 module is a JWH6344 module, mainly used for converting DC48V voltage into DC12V voltage. The DC / DC-2 module is used for converting DC12V voltage into DC (ADJ1) voltage. DC (ADJ1) is a dynamically adjustable voltage with a voltage range of 1.8V-5V, mainly used for power supply of red LED beads on the LED display screen. The DC / DC-3 module is used for converting DC12V voltage into DC (ADJ2) voltage. DC (ADJ2) is also a dynamically adjustable voltage with a voltage range of 2.6V-5V, mainly used for power supply of blue and green LED beads on the LED display screen. The DC / DC-2 and DC / DC-3 modules are TPS568230 modules.

[0022] In this step, the LED beads of the display screen are divided into two groups according to color. In this way, two voltage paths can be adjusted according to the different characteristics of the two groups of beads and real-time display requirements, that is, the power ratio of red / blue / green pixels in the picture, so as to achieve more accurate and efficient control.

[0023] Step 20: Obtain a video stream, decode the video stream, and intercept a video frame picture, and record the picture interception time; As an optional embodiment, the video stream is acquired, the video stream is decoded, and the video frame picture is intercepted, and the picture interception moment is recorded, which can specifically include the following steps: step 201: when the current video frame picture is intercepted, the next frame of video data is synchronously buffered; step 202: the RGB histogram similarity of the current video frame picture and the next frame of video data is analyzed; step 203: when the similarity is greater than a similarity threshold, the voltage regulation instruction generated by the current video frame picture is applied to the next frame of video data at the same time; and step 204: when the similarity is less than or equal to the similarity threshold, real-time voltage regulation calculation of the next frame of video data is started.

[0024] In this step, if the color distribution of the two frames of pictures is very similar, and the similarity exceeds the set threshold, it is considered that the picture changes little, and the voltage regulation instruction calculated for the current frame is directly reused for the next frame, without the need for re-calculation, thereby saving the calculation resources.

[0025] Step 30: The video frame picture is divided to obtain a grid picture, and the power demand ratio of red pixels to blue-green pixels in the grid picture is calculated. As an optional embodiment, the video frame picture is divided to obtain a grid picture, which can specifically include the following steps: step 301: the distribution density of high-frequency details in the video frame picture is detected, and a high-density area and a low-density area are obtained through a preset distribution density threshold; and step 302: a minimum pixel grid is used in the high-density area, an adaptive expansion grid is used in the low-density area, and a cross-grid merging calculation is performed on a pure color area.

[0026] In this step, the distribution density of high-frequency details, such as texture complexity and color change, in the picture is detected, and a high-density area, that is, a high-detail area, and a low-density area, that is, a low-detail area, are distinguished by using a preset threshold; different grid strategies are used for different areas, a minimum pixel grid is used in a high-detail area to ensure analysis accuracy, an automatically expandable grid is used in a low-detail area, a neighboring grid is directly merged for calculation for a pure color area or an area with small color change, unnecessary calculation amount is reduced, and the power demand ratio of red pixels to blue-green pixels in each grid is calculated after the differential grid division, thereby providing a basis for subsequent targeted voltage regulation.

[0027] As an optional embodiment, the power demand ratio of the red pixels to the cyan pixels in the grid picture is calculated, which can specifically include: step 303: extracting the channel values of the red pixels and the cyan pixels in the grid picture to obtain red channel values and cyan channel values; step 304: converting the red channel values into first theoretical power consumption according to the current, brightness and voltage relationship of the red LED lamp beads; step 305: combining and converting the cyan channel values into second theoretical power consumption according to the current, brightness and voltage relationship of the cyan LED lamp beads; and step 306: generating the power demand ratio according to the ratio of the first theoretical power consumption to the second theoretical power consumption.

[0028] Step 40: generating a voltage regulation instruction according to the power demand ratio and real-time temperature data, and recording the time when the voltage regulation instruction is generated, wherein the voltage regulation instruction includes a first voltage regulation instruction and a second voltage regulation instruction, the first voltage regulation instruction is used to match the first voltage, and the second voltage regulation instruction is used to match the second voltage; In this step, a temperature-voltage drop compensation model is established: V adj =V base +k×(T current -T ref ), wherein V base is a theoretical voltage, k is a negative temperature coefficient, T ref is a reference temperature; and the output voltage of the PWM voltage regulation instruction is set to the compensated V adj value.

[0029] Step 50: calculating the time delay of the picture interception time and the voltage regulation instruction generation time, and delaying the voltage regulation instruction to act on the LED display screen synchronously with the corresponding video frame picture.

[0030] As an optional embodiment, the time delay of the picture interception time and the voltage regulation instruction generation time is calculated, which can specifically include: step 501: presetting a safety margin time, and obtaining a total delay according to the processing time delay and the safety margin time; and step 502: adjusting the next frame grid division granularity according to the total delay.

[0031] In this step, the picture interception time t0 and the voltage regulation instruction generation time t1 are recorded, the total delay is calculated as T0=t1-t0+Δt, wherein Δt is a preset safety margin time, T0 is fed back to the AI image processing module to dynamically adjust the next frame grid division granularity. A fixed safety margin time is set, which is equivalent to a reserved buffer time. If the total delay is long, the processing speed is slow, the grid may be increased to reduce the calculation amount and speed up the processing. If the total delay is short, the processing capacity is sufficient, the grid may be reduced to improve the analysis accuracy.

[0032] As an optional embodiment, after acquiring the video stream, before decoding the video stream, the method can further include: detecting an ambient illumination value and corresponding time data by the optical sensor; generating a basic brightness coefficient according to the illumination value and the time data; and applying a preset multiple of brightness scaling to the video stream when decoding the video stream.

[0033] In this step, the ambient illumination value Lux is detected by the optical sensor, the local time and sunrise and sunset data are acquired by the RTC module, the basic brightness coefficient a is generated according to the illumination value Lux and the time data, and a brightness scaling of a times is applied to the video stream in the decoding process.

[0034] As an optional embodiment, the basic brightness coefficient can be generated according to the illumination value and the time data, specifically including: when the illumination value is greater than a threshold value, the basic brightness coefficient adopts a maximum value; and when the illumination value is less than or equal to the threshold value, the basic brightness coefficient is calculated according to the ratio of the actual illumination intensity to the critical value.

[0035] In this step, the generation of the basic brightness coefficient a includes: when the illumination value Lux is greater than the threshold value and in the daytime period, a = 1.0; when the illumination value Lux is less than or equal to the threshold value and in the daytime period, a = 0.9 × (1 + (Lux / threshold value)); and in the nighttime period, a logarithmic decay model is enabled: a = β · log10(Lux + 1), and β is a nighttime adjustment factor.

[0036] As an optional embodiment, after calculating the time delay of the picture interception moment and the voltage adjustment instruction generation moment and delaying the voltage adjustment instruction, the method can further include: monitoring the current feedback values of the first voltage and the second voltage; when the deviation between the actual current and the theoretical current lasts for a preset time length and exceeds the limit, switching to a fixed safety voltage mode and generating an alarm log; and updating the current, brightness and voltage relationship based on historical current data.

[0037] The above is the method embodiment of the present application. Based on the same inventive concept, the present application also provides an LED display screen control device for real-time voltage adjustment, the structure of which is shown in Figure 3 .

[0038] Figure 3 An LED display screen control device for real-time voltage adjustment provided by the present application is shown in Figure 3 . The device includes: at least one processor 301; and a memory 302 in communication connection with the at least one processor; The memory 302 stores instructions executable by the at least one processor 301, and the at least one processor 301 executes the instructions to enable the at least one processor 301 to: provide a first voltage to the red LED lamp bead group and a second voltage to the blue-green LED lamp bead group through independent power supply channels respectively; acquire a video stream, decode the video stream, and intercept a video frame picture, and record a picture interception time; divide the video frame picture to obtain a grid picture, and calculate a power demand ratio of red pixels to blue-green pixels in the grid picture; generate a voltage regulation instruction according to the power demand ratio and real-time temperature data, and record a voltage regulation instruction generation time, wherein the voltage regulation instruction includes a first voltage regulation instruction and a second voltage regulation instruction, the first voltage regulation instruction is used to match the first voltage, and the second voltage regulation instruction is used to match the second voltage; calculate a time delay of the picture interception time and the voltage regulation instruction generation time, and delay the voltage regulation instruction to act on the LED display screen synchronously with the corresponding video frame picture.

[0039] Some embodiments of the present application provide a non-volatile computer storage medium for real-time voltage regulation of an LED display screen control corresponding to Figure 1 Some embodiments of the present application provide a non-volatile computer storage medium for real-time voltage regulation of an LED display screen control corresponding to

[0040] Each of the embodiments in the present application is described in a progressive manner, and the same or similar parts of each of the embodiments can be referred to each other. Each of the embodiments mainly describes the difference from other embodiments. In particular, the IoT device and medium embodiments are basically similar to the method embodiments, and thus the description is relatively simple, and the relevant parts can be referred to the part of the method embodiments.

[0041] The system and medium provided by the embodiments of the present application are one-to-one corresponding to the method, and thus the system and medium also have similar beneficial technical effects to the method. Since the beneficial technical effects of the method have been described in detail above, the beneficial technical effects of the system and medium will not be described here.

[0042] Those skilled in the art will appreciate that embodiments of the present application can be readily used as software, hardware, or a combination of software and hardware. In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0043] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 means for functionally implementing one or more functions specified in the flowchart block or blocks.

[0044] These computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 means for functionally implementing one or more functions specified in the flowchart block or blocks.

[0045] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 means for functionally implementing one or more functions specified in the flowchart block or blocks.

[0046] In one typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0047] The memory can include non-persistent memory and / or persistent memory, such as flash memory, read-only memory (ROM), and / or volatile or non-volatile random access memory (RAM), among others. The memory is an example of computer readable media.

[0048] Computer-readable media includes permanent and non-permanent, movable and non-movable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to a computing device. According to the definition herein, computer-readable media does not include transitory media such as modulated data signals and carriers.

[0049] It should also be noted that the terms "comprising", "containing", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0050] The above only describes the embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of claims of the present application.

Claims

1. A method for controlling an LED display screen with real-time voltage regulation, characterized in that: The method comprises: Provide a first voltage to the red LED lamp bead group and a second voltage to the blue and green LED lamp bead group through independent power supply channels; Obtaining a video stream, decoding the video stream, capturing a video frame, and recording the time of capturing the frame; Dividing the video frame into a grid image, and calculating a power demand ratio of red pixels to blue-green pixels in the grid image; generating a voltage regulation instruction according to the power demand ratio and the real-time temperature data, and recording a time when the voltage regulation instruction is generated, wherein the voltage regulation instruction includes a first voltage regulation instruction and a second voltage regulation instruction, the first voltage regulation instruction is used to match the first voltage, and the second voltage regulation instruction is used to match the second voltage; The time delay between the image capture moment and the voltage regulation instruction generation moment is calculated, and the voltage regulation instruction is delayed so as to act on the LED display screen synchronously with the corresponding video frame image.

2. The LED display screen control method for real-time voltage regulation according to claim 1, characterized in that: The dividing the video frame to obtain a grid image specifically includes: Detecting the distribution density of high-frequency details in the video frame, and obtaining high-density areas and low-density areas through a preset distribution density threshold; A minimum pixel grid is used in the high-density area, an adaptive extended grid is used in the low-density area, and cross-grid merging calculation is performed on the pure color area.

3. The LED display screen control method for real-time voltage regulation according to claim 1, characterized in that: Calculating the power requirement ratio of red pixels to blue-green pixels in the grid image specifically includes: Extracting the channel values ​​of the red pixels and the blue-green pixels in the grid image to obtain the red channel value and the blue-green channel value; Converting the red channel value into a first theoretical power consumption according to the relationship between the current, brightness, and voltage of the red LED lamp bead; According to the relationship between the current, brightness and voltage of the blue-green LED lamp beads, the blue-green channel values ​​are combined and converted into a second theoretical power consumption; The power requirement ratio is generated according to the ratio of the first theoretical power consumption to the second theoretical power consumption.

4. The LED display screen control method for real-time voltage regulation according to claim 1, characterized in that: The obtaining of the video stream, decoding the video stream, capturing the video frame, and recording the time of capturing the frame specifically includes: When capturing the current video frame, the next frame of video data is cached synchronously; Analyze the RGB histogram similarity between the current video frame and the next frame of video data; When the similarity is greater than a similarity threshold, the voltage adjustment instruction generated by the current video frame is simultaneously applied to the next frame of video data; When the similarity value is equal to the similarity threshold, the real-time voltage regulation calculation of the next frame of video data is started.

5. The LED display screen control method for real-time voltage regulation according to claim 1, characterized in that: The calculation of the processing delay from the screen capture to the generation of the voltage adjustment instruction specifically includes: Presetting a safety margin time, and obtaining a total delay according to the processing delay and the safety margin time; The next frame grid division granularity is adjusted according to the total delay.

6. The LED display screen control method for real-time voltage regulation according to claim 1, characterized in that: Before obtaining the video stream and decoding the video stream, the method further includes: Detect the ambient illumination value and the corresponding time data through the optical sensor; generating a basic brightness coefficient according to the illumination value and time data; When decoding the video stream, brightness scaling of a preset multiple is applied to the video stream.

7. The LED display screen control method for real-time voltage regulation according to claim 6, characterized in that: Generating a basic brightness coefficient according to the illumination value and time data specifically includes: When the illumination value is greater than a threshold, the basic brightness coefficient adopts the highest value; When the illumination value is less than or equal to a threshold value, the basic brightness coefficient is calculated according to a ratio of the actual illumination intensity to the critical value.

8. The LED display screen control method for real-time voltage regulation according to claim 3, characterized in that: After calculating the time delay between the image capture moment and the voltage adjustment instruction generation moment, and delaying the voltage adjustment instruction, the method further includes: monitoring current feedback values ​​of the first voltage and the second voltage; When the deviation between the actual current and the theoretical current exceeds the preset limit for a continuous period of time, the system switches to the fixed safety voltage mode and generates an alarm log; The current, brightness, and voltage relationships are updated based on historical current data.

9. A LED display screen control device for real-time voltage regulation, characterized in that: The device comprises: at least one processor; and, a memory communicatively coupled to the at least one processor; The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to: Provide a first voltage to the red LED lamp bead group and a second voltage to the blue and green LED lamp bead group through independent power supply channels; Obtaining a video stream, decoding the video stream, capturing a video frame, and recording the time of capturing the frame; Dividing the video frame into a grid image, and calculating a power demand ratio of red pixels to blue-green pixels in the grid image; generating a voltage regulation instruction according to the power demand ratio and the real-time temperature data, and recording a time when the voltage regulation instruction is generated, wherein the voltage regulation instruction includes a first voltage regulation instruction and a second voltage regulation instruction, the first voltage regulation instruction is used to match the first voltage, and the second voltage regulation instruction is used to match the second voltage; The time delay between the image capture moment and the voltage regulation instruction generation moment is calculated, and the voltage regulation instruction is delayed so as to act on the LED display screen synchronously with the corresponding video frame image.

10. A non-volatile computer storage medium for real-time voltage regulation LED display screen control, storing computer executable instructions, characterized in that: The computer executable instructions are configured to: Provide a first voltage to the red LED lamp bead group and a second voltage to the blue and green LED lamp bead group through independent power supply channels; Obtaining a video stream, decoding the video stream, capturing a video frame, and recording the time of capturing the frame; Dividing the video frame into a grid image, and calculating a power demand ratio of red pixels to blue-green pixels in the grid image; generating a voltage regulation instruction according to the power demand ratio and the real-time temperature data, and recording a time when the voltage regulation instruction is generated, wherein the voltage regulation instruction includes a first voltage regulation instruction and a second voltage regulation instruction, the first voltage regulation instruction is used to match the first voltage, and the second voltage regulation instruction is used to match the second voltage; The time delay between the image capture moment and the voltage regulation instruction generation moment is calculated, and the voltage regulation instruction is delayed so as to act on the LED display screen synchronously with the corresponding video frame image.

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