A method, apparatus and display screen for energy management

Abstract

This invention relates to an energy management method, apparatus, and display screen for a display screen. The energy management method of this application is applied to a display control system. The method includes: analyzing and processing energy parameters acquired by an energy harvester to obtain an energy intensity curve representing intensity changes and stability; processing the energy intensity curve based on a preset energy assessment model to obtain collectable energy data and controlling the energy harvester to collect the energy; the display control system can process the power supply requirements of the display module and the energy conversion information fed back by the energy conversion memory to generate energy allocation instructions to control the energy conversion memory to rationally allocate the converted and stored energy. This method can convert renewable resources into electrical energy, achieving self-powering of the display screen, which is more energy-efficient and environmentally friendly, while also eliminating dependence on the power grid and expanding the application scenarios of the display screen.

Description

Technical Field

[0001] This invention relates to the field of energy management technology, and in particular to an energy management method, device and display screen with self-powered display screen. Background Technology

[0002] Micro LED displays are a new type of display technology. They consist of tiny LED beads, each capable of emitting light independently. Compared to traditional displays, Micro LED displays offer higher brightness, contrast, and color saturation, resulting in clearer and more vibrant images. Furthermore, Micro LED displays have a very fast response time, enabling high-definition dynamic image display without ghosting. In addition, they consume relatively little power, making them more energy-efficient and environmentally friendly.

[0003] However, existing Micro LED displays primarily rely on the traditional power grid for power supply. This means that dedicated power lines are required. This approach presents several problems: First, it consumes a large amount of energy, making it neither energy-efficient nor environmentally friendly. Second, its dependence on specific power lines significantly limits its application scenarios, preventing its use in areas without grid coverage or where power lines are difficult to lay. Finally, the ongoing operating costs are high, including electricity bills and power line maintenance. These current conditions are severely at odds with the development needs of Micro LED displays for energy conservation, environmental friendliness, convenience, and low cost. Summary of the Invention

[0004] Therefore, it is necessary to provide an energy management method, device, and display screen with self-powered display screen to address the aforementioned technical problems.

[0005] In a first aspect, this application provides an energy management method for a display screen, applied to a display control system, wherein the display control system is connected to an energy harvester, an energy conversion memory, and a display module; the method includes the following steps:

[0006] Acquire energy parameters, including at least one of light intensity data, wind speed data, vibration data, and temperature difference data;

[0007] The energy parameters are analyzed and processed to obtain the energy intensity curve, which is used to indicate the intensity changes and stability of various energies in the working environment.

[0008] The energy intensity curve is processed based on a preset energy assessment model to obtain energy assessment information, which is used to indicate the energy data that can be collected.

[0009] Based on energy assessment information, an energy harvesting instruction is generated and sent to the energy harvester. The energy harvesting instruction is used to characterize the harvesting of energy that can be harvested and to send it to the energy conversion storage device for energy conversion.

[0010] Obtain the power supply requirements of the display module and the energy conversion information fed back from the energy conversion memory;

[0011] The system processes power demand and energy conversion information, generates energy allocation instructions, and sends them to the energy conversion memory. The energy allocation instructions are used to control the energy conversion memory to allocate the converted and stored energy to meet the supply requirements of the display module.

[0012] In one embodiment, the energy parameters are analyzed and processed to obtain an energy intensity curve, including the following steps:

[0013] The energy parameters are processed to obtain the coefficient of variation of the energy intensity. The formula for calculating the coefficient of variation is as follows:

[0014]

[0015]

[0016]

[0017] Where t is the total time. Let i be the energy intensity acquired during time t. Let be the mean of all energy intensities from the start to time t. Let be the standard deviation of all energy intensities from the start to time t. The coefficient of variation of energy intensity;

[0018] Based on the obtained coefficient of variation and energy parameters, the energy intensity curve is obtained.

[0019] Furthermore, the energy intensity curve is processed based on a pre-defined energy assessment model to obtain energy assessment information, including the following steps:

[0020] Feature extraction is performed on the energy intensity curve to obtain energy features, which include intensity features, time features, and variation features.

[0021] The energy features are input into the trained random forest model, and the independent evaluation results of each decision number are output. The independent evaluation results are used to characterize whether the energy of the corresponding energy feature can be collected.

[0022] The independent assessment results are statistically analyzed to obtain energy assessment information, which is then used to determine collectable energy data from the independent assessment results through a voting process.

[0023] In one embodiment, the energy allocation instruction includes a first allocation instruction or a second allocation instruction, which processes power demand and energy conversion information to generate an energy allocation instruction and send it to the energy conversion memory, specifically including:

[0024] The system identifies whether the converted energy in the energy conversion information meets the power supply requirements of the display module. If it does, a first allocation instruction is generated to control the energy conversion memory to supply the converted energy that meets the power supply requirements to the display module and store the excess energy.

[0025] If the converted energy does not meet the power supply requirements, a second allocation instruction is generated to instruct the control energy conversion and storage module to supply the converted and stored energy to the display module together to meet the power supply requirements of the display module.

[0026] In one embodiment, before obtaining the power demand from the display module, the following steps are included:

[0027] The display area image is acquired in real time, and the display area image is used to indicate the image data of the viewing area of ​​the display screen captured in real time by the monitoring unit of the display module;

[0028] The image of the display area is processed using image recognition technology to obtain the user's viewing status;

[0029] Based on user viewing data and preset energy-saving rules, screen control commands are generated and sent to the display module. These commands control the display module to reduce the brightness of the display screen or turn it off if no user views the screen within a preset time period.

[0030] Furthermore, the screen control instructions include a first control instruction, a second control instruction, and a third control instruction, and the energy-saving rules include:

[0031] If it is detected that the user is not watching within the preset first viewing time, a first control command is generated. The first control command is used to instruct the control display module to reduce the brightness of the display screen.

[0032] If it is detected that the user is not watching within the preset second viewing time, a second control command is generated to control the display module to enter a standby mode where the display screen is off but can be quickly turned on. The second viewing time is longer than the first viewing time.

[0033] If it is detected that the user is not watching within the preset third viewing time, a third control command is generated to control the display module to turn off the screen. The third viewing time is longer than the second viewing time.

[0034] In one embodiment, the display control system is also connected to a remote control module of the user terminal, and the method further includes:

[0035] The energy assessment information and power supply requirements are processed in real time to obtain a display information mapping table. The display information mapping table is used to indicate the energy parameters that the display screen can collect and the power supply requirements of the display screen.

[0036] The display information mapping table will be sent to the remote control module;

[0037] The system receives user control requests from the remote control module, generates user control commands, and sends them to the display module. These user control commands represent the user's control of the display screen's brightness and on / off state via the user terminal's remote control module.

[0038] Furthermore, the power supply demand and energy conversion information are processed to generate energy allocation instructions and send them to the energy conversion memory, including:

[0039] Obtain stored energy information from the energy conversion and storage device;

[0040] The system identifies the stored energy information and whether it meets the power supply request of the display module. If it does, it generates an energy allocation instruction; otherwise, it generates an early warning message and sends it to the remote control module to remind the user of insufficient energy. It also generates an energy storage instruction and sends it to the energy conversion memory. The energy storage instruction is used to control the energy conversion memory to store all the converted electrical energy.

[0041] Secondly, this application also provides an energy management device for a display screen, applied to a display control system, wherein the display control system is connected to an energy harvester, an energy conversion memory, and a display module; the device is configured with the following modules:

[0042] The data acquisition module is used to acquire energy parameters, including at least one of light intensity data, wind speed data, vibration data and temperature difference data. It is also used to acquire power supply requirements from the display module and energy conversion information fed back from the energy conversion memory.

[0043] Energy harvesting module, used for:

[0044] The energy parameters are analyzed and processed to obtain the energy intensity curve, which is used to indicate the intensity changes and stability of various energies in the working environment.

[0045] The energy intensity curve is processed based on a preset energy assessment model to obtain energy assessment information, which is used to indicate the energy data that can be collected.

[0046] Based on energy assessment information, an energy harvesting command is generated and sent to the energy harvester. The energy harvester is used to characterize the energy that can be harvested and to send it to the energy conversion storage device for energy conversion.

[0047] The energy distribution module processes power demand and energy conversion information, generates energy distribution instructions, and sends them to the energy conversion memory. The energy distribution instructions are used to control the energy conversion memory to distribute the converted and stored energy to meet the supply requirements of the display module.

[0048] Thirdly, this application also provides a display screen, including a display module and a display control system, characterized in that the display control system is used to implement any of the above-mentioned display screen energy management methods.

[0049] The energy management method, device, and display screen described above convert suitable renewable resources into electrical energy through an energy harvester, and then deliver the converted electrical energy to the display screen to achieve self-powered display screen. By replacing grid resources with renewable resources, the goal of saving resources and protecting the environment is achieved. At the same time, the self-powered display screen is free from the dependence of traditional Micro LED display screens on the grid, so it can be applied to areas not covered by the traditional grid, thus expanding the application scenarios. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This application provides an application environment for a display screen energy management method according to an embodiment of the present application;

[0052] Figure 2a A flowchart illustrating a power management method for a display screen provided in an embodiment of this application;

[0053] Figure 2b This is a schematic diagram of the process for obtaining energy assessment information in an embodiment of this application;

[0054] Figure 3 This is a schematic diagram of the process for generating energy allocation instructions in an embodiment of this application;

[0055] Figure 4 This is a flowchart illustrating the automatic power on / off function in an embodiment of this application.

[0056] Figure 5aA flowchart illustrating another energy management method for a display screen provided in an embodiment of this application;

[0057] Figure 5b for Figure 5a A flowchart illustrating the process of implementing energy monitoring and early warning functions in China;

[0058] Figure 6 This is a structural block diagram of an energy management device for a display screen provided in an embodiment of this application. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0060] The energy management method for displays provided in this application embodiment can be applied to, for example... Figure 1 In the application environment shown, the display control system 120 can be communicatively connected to the display module 130, the energy harvester 140, and the energy conversion memory 150, respectively. The energy conversion memory 150 can be connected to the energy harvester 140 and the display module 130 via cables. The display control system 120 can be integrated onto the Micro LED display screen 110 or placed in the cloud or on other network servers.

[0061] The energy harvester 140 is equipped with integrated sensors to acquire at least one of the following data: light intensity, wind speed, vibration, and temperature difference. It also includes an energy harvester corresponding to each sensor for harvesting at least one type of energy. Preferably, the energy harvester 140 can be one or more energy harvesting devices such as a solar panel, wind turbine, vibration energy harvester, or thermoelectric generator. The energy harvester 140 acquires energy parameters through sensors and sends them to the display control system 120. Based on the energy harvesting command fed back from the display control system 120, it harvests the corresponding energy and transmits the harvested energy to the energy conversion memory 150 for conversion.

[0062] The energy conversion storage device 150 includes a conversion device that converts the collected energy into electrical energy suitable for use by the Micro LED display 110, and an energy storage device that stores the converted electrical energy. The conversion device can be a DC-DC converter, inverter, or other suitable power regulation device, and the energy storage device can be a lithium-ion battery or a supercapacitor. The energy conversion storage device 150 receives energy from the energy harvester 140 and sends relevant information about the converted electrical energy to the display control system. The display control system generates energy allocation instructions based on the power supply requirements of the display module 130 and the relevant information about the converted electrical energy, and sends these instructions to the energy conversion storage device 150 to allocate the converted and stored energy to meet the power supply requirements of the display module 130.

[0063] In one exemplary embodiment, such as Figure 2a The diagram illustrates a flowchart of an energy management method for a display screen according to an embodiment of this application. The method is applied to a display control system, and the specific steps are as follows:

[0064] S210, acquire energy parameters, including at least one of light intensity data, wind speed data, vibration data, and temperature difference data.

[0065] Preferably, in the process of acquiring energy parameters, data is first collected using various sensors on the energy harvester. For example, to collect light intensity data, a photosensor can convert light of different intensities into electrical signals, thereby obtaining the light intensity value. For instance, in an outdoor environment with abundant sunlight, the light intensity data detected by the photosensor is higher; while on cloudy days or indoors, the light intensity data is relatively lower. After collecting this data, the energy harvester transmits it to the display and control system via a communication connection.

[0066] S220 analyzes and processes energy parameters to obtain energy intensity curves, which are used to indicate the intensity changes and stability of various energies in the working environment.

[0067] Preferably, the energy parameter can be processed using the coefficient of variation formula, and the calculation steps are as follows:

[0068] Step one: Process the energy parameters to obtain the coefficient of variation of the energy intensity. The formula for calculating the coefficient of variation is as follows:

[0069]

[0070]

[0071]

[0072] Where t is the total time. Let i be the energy intensity acquired during time t. Let be the mean of all energy intensities from the start to time t. Let be the standard deviation of all energy intensities from the start to time t. The coefficient of variation of energy intensity;

[0073] Step two: Based on the obtained coefficient of variation and energy parameters, the energy intensity curve is obtained.

[0074] Preferably, the total time t can be used as the x-axis and the coefficient of variation. Plot the energy intensity stability curve with the vertical axis as the ordinate. If the energy intensity curve fluctuates within a small range over time, it indicates that the measured energy intensity is relatively stable; if the curve fluctuates significantly, it indicates that the energy intensity is less stable.

[0075] S230 processes the energy intensity curve based on a preset energy assessment model to obtain energy assessment information, which is used to indicate the energy data that can be collected.

[0076] Prioritizing the analysis of energy intensity curves using a pre-defined energy assessment model, the system performs calculations and evaluations on factors such as peak values ​​and fluctuations to generate energy assessment information. This information determines which energy sources can be collected, preventing the collection of low-intensity energy that reduces overall collection efficiency and protecting equipment from damage caused by large energy fluctuations, thereby improving system reliability and lifespan.

[0077] S240 generates an energy harvesting command based on energy assessment information and sends it to the energy harvester. The energy harvesting command is used to characterize the harvesting of energy that can be harvested and to send it to the energy conversion storage device for energy conversion.

[0078] Preferably, after receiving an energy harvesting command, the energy harvester activates the corresponding energy harvesting device to collect the energy and transmits it to an energy conversion storage device for energy conversion via power regulation equipment such as an inverter or a DC-DC converter. Taking solar energy as an example, solar energy is collected by solar panels, and the energy harvester transmits the collected solar energy to the energy conversion storage device. For example, in this process, a photovoltaic inverter or a DC-DC converter can be used for energy conversion. The photovoltaic inverter converts the direct current generated by the solar panels into alternating current for better connection to the power grid or other electrical equipment. The DC-DC converter can adjust the voltage level according to different needs, achieving efficient energy storage and utilization.

[0079] S250 obtains the power supply requirements of the display module and the energy conversion information fed back from the energy conversion memory.

[0080] S260 processes the power supply demand and energy conversion information, generates an energy allocation instruction, and sends it to the energy conversion memory. The energy allocation instruction is used to control the energy conversion memory to allocate the converted and stored energy to meet the power supply demand of the display module.

[0081] In summary, the energy management method for displays provided in this application can collect energy parameters from renewable resources, analyze these parameters to obtain suitable collectable energy, convert the collectable energy into electrical energy through energy conversion, and allocate energy according to the converted electrical energy and the power supply requirements of the display. By utilizing renewable resources instead of direct power supply from the traditional power grid, the method achieves the goal of saving resources and protecting the environment. At the same time, the self-powered display eliminates the dependence of traditional Micro LED displays on the power grid, thus enabling its application in areas not covered by the traditional power grid and expanding its application scenarios.

[0082] Preferred options, please refer to Figure 2b The diagram illustrates the process of obtaining energy assessment data in an embodiment of this application, with the specific steps as follows:

[0083] S231, feature extraction is performed on the energy intensity curve to obtain energy features, which include intensity features, time features, and variation features.

[0084] For example, the display control system can calculate the mean, median, maximum, minimum, and standard deviation of energy intensity as energy intensity characteristics, calculate the distribution of energy in different time periods as energy temporal characteristics, such as the difference in energy intensity between day and night, and calculate the rate of change, first-order difference, and second-order difference of energy intensity as energy change characteristics to reflect the trend of energy intensity change.

[0085] S232, input the energy features into the trained random forest model, and output the independent evaluation results of each decision number. The independent evaluation results are used to characterize whether the energy of the corresponding energy feature can be collected.

[0086] Preferably, the construction of a random forest model includes the following steps:

[0087] Step 1: Determine the number of decision trees, the maximum depth, and the minimum split degree.

[0088] Preferably, the more decision trees (n_estimators), the better the model performance, but the computational cost also increases. The maximum depth of the decision tree (max_depth) limits the growth depth of the decision tree to prevent overfitting. The minimum number of sample splits (min_samples_split) determines how many samples are needed for a node to split. For example, a suitable set of n_estimators, n_estimators, and min_samples_split can be determined experimentally, starting with smaller values ​​and gradually increasing them to n_estimators=100, n_estimators=5, and min_samples_split=2, to observe changes in model performance.

[0089] Step two: Train the decision tree.

[0090] Preferably, a subset of samples is randomly selected from the original energy intensity dataset as the training set for each decision tree. For example, sampling with replacement can be used, meaning the same sample may appear multiple times in different decision trees. When splitting at each node, a subset of features is randomly selected from all features, and then the best feature is chosen for splitting. This increases the diversity of the decision trees and reduces the risk of overfitting. Nodes are continuously split based on the selected features and splitting criteria until a stopping condition is met. The stopping condition could be reaching the maximum depth, the number of samples in a node being less than a certain threshold, or the node having sufficiently high purity. During prediction, for new input data, each decision tree outputs a result, and these results are independent of each other. For example, if there are 100 decision trees, 60 might predict that the energy can be collected, while 40 might predict that it cannot.

[0091] S233: The independent assessment results are statistically analyzed to obtain energy assessment information, which is used to determine collectable energy data from the independent assessment results through a voting process.

[0092] Preferably, the energy allocation command can be either a first allocation command or a second allocation command; please refer to [link / reference]. Figure 3 The diagram illustrates the process of generating energy allocation instructions in an embodiment of this application, with the specific steps as follows:

[0093] S310. Identify whether the energy converted in the energy conversion information meets the power supply requirements of the display module. If it does, generate a first allocation instruction. The first allocation instruction is used to instruct the energy conversion memory to supply the energy that meets the power supply requirements to the display module and store the excess energy.

[0094] For example, storing electrical energy requires further conversion, a process that involves energy consumption. Directly supplying the display module with energy that meets power requirements eliminates this conversion process compared to storing it in an energy conversion storage device first. Direct supply avoids the energy loss that might occur during storage and subsequent retrieval for the display, thus enabling more efficient use of converted electrical energy, improving energy efficiency, and better meeting energy conservation and environmental protection requirements.

[0095] S320. If the converted energy does not meet the power supply requirements, a second allocation instruction is generated. The second allocation instruction is used to instruct the control energy conversion and storage module to supply the converted energy and the stored energy to the display module together to meet the power supply requirements of the display module.

[0096] In summary, the energy management method for displays provided in this application can collect energy parameters from renewable resources, analyze these parameters to obtain suitable collectable energy, convert the collectable energy into electrical energy through energy conversion, and allocate energy according to the converted electrical energy and the power supply requirements of the display. This achieves both the self-powering of the display by delivering the converted electrical energy to the display and the storage of excess electrical energy for auxiliary power supply when the converted energy is insufficient to supply the display. By utilizing renewable resources instead of direct power supply from the traditional power grid, the method achieves the goal of saving resources and protecting the environment. At the same time, the self-powered display eliminates the dependence of traditional Micro LED displays on the power grid, thus enabling its application in areas not covered by the traditional power grid and expanding its application scenarios.

[0097] In real-world usage environments, displays may remain on for extended periods without being viewed, resulting in unnecessary energy consumption. This further exacerbates the energy harvesting burden for self-powered displays. Preferably, such as... Figure 4 As shown, this embodiment of the application illustrates a flowchart for implementing an automatic power-on / off function before receiving power requirements from the display module. The specific process is as follows:

[0098] S410: Real-time acquisition of display area image. The display area image is used to indicate the image data of the viewing area of ​​the display screen captured in real time by the monitoring unit of the display module.

[0099] Preferably, a miniature monitoring camera is installed on the Micro LED display screen. The monitoring unit on the display module can control the miniature monitoring camera to start when the display screen is running, and capture images of the viewing area of ​​the display screen in real time at high resolution and a certain frame rate. The monitoring unit converts the light signal into an electrical signal and sends it to the display control system to realize real-time monitoring of the viewing area.

[0100] S420: Based on image recognition technology, the image of the display area is processed to obtain the user's viewing status.

[0101] Preferably, a convolutional neural network algorithm can be used to process the image of the display area. The processing steps are as follows:

[0102] Step 1: Collect a large number of labeled image samples of different users viewing the display screen to train the model and build a viewing recognition model.

[0103] Step two involves inputting the display area image into the viewing recognition model for processing to obtain the user's viewing status.

[0104] For example, during processing, the network's convolutional layers extract various features from the image, such as edges and textures. Pooling layers downsample these features, reducing computation while preserving key features. After multiple convolutional and pooling layers, fully connected layers comprehensively analyze the extracted features to determine whether the user is viewing the display screen. For instance, it can determine whether the user is looking directly at the screen based on the orientation and angle of their face, and assess their level of focus based on their eye state, thus obtaining a relatively accurate picture of the user's viewing status.

[0105] S430 generates screen control commands based on user viewing data and preset energy-saving rules, and sends them to the display module. These screen control commands control the display module to reduce the display's brightness or turn it off if no user views the display for a preset period of time.

[0106] Preferably, the screen control instructions include a first control instruction, a second control instruction, and a third control instruction, and the aforementioned energy-saving rules include the following determination methods:

[0107] S431. If it is detected that the user is not watching within the preset first viewing time, a first control instruction is generated. The first control instruction is used to instruct the control display module to reduce the brightness of the display screen.

[0108] S432. If it is detected that the user is not watching within the preset second viewing time, a second control command is generated to control the display module to enter a standby mode where the display screen is off but can be quickly turned on. The second viewing time is longer than the first viewing time.

[0109] S433. If it is detected that the user is not watching within the preset third viewing time, a third control command is generated to control the display module to turn off the display screen. The third viewing time is longer than the second viewing time.

[0110] In one specific embodiment, the first viewing time is 10 minutes, the second viewing time is 20 minutes, and the third viewing time is 30 minutes. When a user temporarily leaves the detection range of the display screen, and no user usage is detected within 10 minutes, the display screen will automatically reduce its brightness to reduce energy consumption and prevent the low-brightness display screen from affecting other people nearby. If no user usage is detected for more than 20 minutes, the display screen will automatically enter standby mode to further save energy and can quickly turn on and enter working state when the user returns. If no user usage is detected for more than 30 minutes, the display screen will automatically enter power-off mode to avoid unnecessary energy consumption. If the user needs to use the display screen at this time, the display screen needs to be restarted.

[0111] In another exemplary embodiment, the display control system of the Micro LED display is also connected to a remote control module of the user terminal to enable remote monitoring of the display by the user. Figure 5a As shown in Figure 2, this application provides a flowchart illustrating an energy management method for a display screen with remote monitoring capabilities. Preferably, this embodiment possesses all the functions of the energy management method shown in Figure 2. The specific steps for implementing remote monitoring functionality in this method are as follows:

[0112] S570 processes energy assessment information and power supply requirements in real time to obtain a display information mapping table, which is used to indicate the energy parameters that the display screen can collect and the power supply requirements of the display screen.

[0113] S580, send the display information mapping table to the remote control module;

[0114] S590: Obtain user control requests from the remote control module, generate user control instructions, and send them to the display module. The user control instructions are used to represent the user controlling the brightness and on / off state of the display screen through the remote control module of the user terminal.

[0115] In one specific embodiment, the user can remotely control the display screen via the brightness adjustment and on / off control functions of the control program corresponding to the user terminal's remote control module. When the user feels the current display screen is too bright and wants to dim it, they adjust the brightness to a lower value in the control program. The user terminal's remote control module converts this brightness adjustment request into a specific data format and sends it out via a wireless network. At the receiving end, the display control system continuously listens for signals from the remote control module. Upon receiving this brightness adjustment request, it generates a corresponding user control command to adjust the display screen brightness to the user-set brightness. Similarly, if the user needs to turn off the display screen, they can use the off button in the on / off control of the control program. After the remote control module sends this off request, the display control system generates a user control command and sends it to the display module, which then turns off the power to the display screen and stops displaying the image.

[0116] In practical applications, when the energy harvested from the working environment is insufficient to power the display screen independently, the energy stored in the energy conversion memory determines whether the display screen can function properly. Therefore, when powering the display screen, it is necessary to consider whether the total stored and converted electrical energy is sufficient to supply its operation. Figure 5b As shown, it illustrates a flowchart for implementing the energy monitoring and early warning function, with the specific steps as follows:

[0117] S561. Obtain stored energy information from the energy conversion and storage device;

[0118] S562. Identify the stored energy information and whether the energy information meets the power supply request of the display module. If it meets the request, generate an energy allocation instruction. If it does not meet the request, generate an early warning message and send it to the remote control module to remind the user that the energy is insufficient. Also generate an energy storage instruction and send it to the energy conversion memory. The energy storage instruction is used to control the energy conversion memory to store all the converted electrical energy.

[0119] In summary, the energy management method for the display screen provided in this application embodiment is a further optimization and expansion based on the energy management method shown in Figure 2. Specifically, by introducing an automatic power-on / off function, the energy consumption of the display screen can be significantly reduced when it is unattended for extended periods, thereby effectively achieving energy conservation. Simultaneously, the monitoring module of the display control system allows users to remotely adjust the screen brightness or turn it off when needed, greatly improving user convenience and further contributing to energy savings.

[0120] Based on the same inventive concept, such as Figure 6As shown in the figure, this application embodiment also provides an energy management device 600 for a display screen. This device is applied to a display control system, which is connected to an energy harvester, an energy conversion memory, and a display module. The energy management device 600 is configured with the following modules:

[0121] The data acquisition module 610 is used to acquire energy parameters, including at least one of light intensity data, wind speed data, vibration data and temperature difference data, and is also used to acquire power supply requirements from the display module and energy conversion information fed back from the energy conversion memory.

[0122] Energy harvesting module 620, used for:

[0123] The energy parameters are analyzed and processed to obtain the energy intensity curve, which is used to indicate the intensity changes and stability of various energies in the working environment.

[0124] The energy intensity curve is processed based on a preset energy assessment model to obtain energy assessment information, which is used to indicate the energy data that can be collected.

[0125] Based on energy assessment information, an energy harvesting command is generated and sent to the energy harvester. The energy harvester is used to characterize the energy that can be harvested and to send it to the energy conversion storage device for energy conversion.

[0126] The energy distribution module 630 is used to process power supply demand and energy conversion information, generate energy distribution instructions and send them to the energy conversion memory. The energy distribution instructions are used to control the energy conversion memory to distribute the converted energy and stored energy to meet the supply requirements of the display module.

[0127] For example, the energy harvesting module may include a first generation unit and an evaluation unit. The first generation unit is used to process energy parameters to obtain the coefficient of variation of energy intensity, and to obtain an energy intensity curve based on the obtained coefficient of variation and energy parameters. The evaluation unit is used to extract features from the energy intensity curve to obtain energy features, and is also used to input the energy features into a trained random forest model, output the independent evaluation results of each decision tree, and to statistically analyze the independent evaluation results to obtain energy evaluation information.

[0128] The energy distribution module may include an identification and generation unit, which identifies whether the energy converted in the energy conversion information meets the power supply requirements of the display module. If it does, a first distribution instruction is generated; if the converted energy does not meet the power supply requirements, a second distribution instruction is generated. The first distribution instruction instructs the energy conversion storage module to supply the converted energy that meets the power supply requirements to the display module and to store any excess energy. The second distribution instruction instructs the energy conversion storage module to supply both the converted and stored energy to the display module to meet the power supply requirements of the display module.

[0129] Preferably, the display control system is further configured with a control command generation module, and the data acquisition module is also used to acquire the display area image in real time. The display area image is used to indicate the image data of the viewing area of ​​the display screen captured in real time by the monitoring unit of the display module. The control command generation module is used to process the display area image based on image recognition technology to obtain the user viewing situation, and generate screen control commands based on the user viewing situation and preset energy-saving rules and send them to the display module. The screen control commands are used to control the display module to reduce the brightness of the display screen or turn off the display screen when no user is viewing the display screen within a preset time. The screen control commands include a first control command, a second control command, and a third control command. The energy-saving rules include the following judgment methods:

[0130] If it is detected that the user is not watching within the preset first viewing time, a first control command is generated. The first control command is used to instruct the control display module to reduce the brightness of the display screen.

[0131] If it is detected that the user is not watching within the preset second viewing time, a second control command is generated to control the display module to enter a standby mode where the display screen is off but can be quickly turned on. The second viewing time is longer than the first viewing time.

[0132] If it is detected that the user is not watching within the preset third viewing time, a third control command is generated to control the display module to turn off the screen. The third viewing time is longer than the second viewing time.

[0133] Preferably, the display control system is also connected to the remote control module of the user terminal. The display control system is also equipped with a corresponding monitoring module. The monitoring module is used to process energy assessment information and power supply requirements in real time, obtain a display information mapping table and send it to the remote control module. The display information mapping table is used to indicate the energy parameters that the display screen can collect and the power supply requirements of the display screen. It is also used to obtain user control requests from the remote control module, generate user control instructions and send them to the display module. The user control instructions are used to indicate that the user controls the brightness and on / off state of the display screen through the remote control module of the user terminal.

[0134] Preferably, the monitoring module is also used to acquire stored energy information from the energy conversion and storage device; and to identify whether the stored energy information and the energy information meet the power supply request of the display module. If they meet, an energy allocation instruction is generated; if they do not meet, an early warning message is generated and sent to the remote control module to remind the user that the energy is insufficient. An energy storage instruction is also generated and sent to the energy conversion and storage device. The energy storage instruction is used to control the energy conversion and storage device to store all the converted electrical energy.

[0135] In summary, the energy management device for the display screen provided in this application embodiment can collect energy parameters from renewable resources, analyze these parameters to obtain suitable collectable energy, and convert the collectable energy into electrical energy through energy conversion. Energy is then allocated based on the converted electrical energy and the power supply requirements of the display screen. This achieves both the self-powering of the display screen by delivering the converted electrical energy to it and the storage of excess electrical energy for auxiliary power supply when the converted energy is insufficient. By utilizing renewable resources instead of direct power supply from the traditional power grid, it achieves the goal of saving resources and protecting the environment. Furthermore, the self-powered display screen eliminates the dependence of traditional Micro LED displays on the power grid, allowing it to be applied in areas not covered by the traditional power grid, thus expanding its application scenarios.

[0136] Furthermore, by introducing automatic power-on / off and remote monitoring functions, the automatic power-on / off function reduces the brightness of the display screen or even turns it off when no one is watching it for a long time, thereby reducing the display screen's energy consumption. The remote monitoring function allows users to adjust the brightness of the display screen or turn it off remotely when needed, greatly improving user convenience and also helping to further save energy.

[0137] In one embodiment, a display screen is provided, including a display module and a display control system, wherein the display control system is used to implement the steps in the above method embodiments.

[0138] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The components described as separate parts may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this disclosure according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0139] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A method for energy management of a display screen, characterized in that, The method is applied to a display control system, which is connected to an energy harvester, an energy conversion memory, and a display module; the method includes: Acquire energy parameters, which include at least one of light intensity data, wind speed data, vibration data, and temperature difference data; The energy parameters are analyzed and processed to obtain an energy intensity curve, which is used to indicate the intensity changes and stability of various energies in the working environment. The energy intensity curve is processed based on a preset energy assessment model to obtain energy assessment information, which is used to indicate the energy data that can be collected. An energy harvesting instruction is generated based on energy assessment information and sent to the energy harvester. The energy harvesting instruction is used to indicate that the energy that can be harvested is harvested and sent to the energy conversion memory for energy conversion. Obtain the power supply requirements of the display module and obtain the energy conversion information fed back from the energy conversion memory; The power supply requirements and energy conversion information are processed to generate an energy allocation instruction and send it to the energy conversion memory. The energy allocation instruction is used to control the energy conversion memory to allocate the converted energy and stored energy to meet the power supply requirements of the display module. The step of analyzing and processing the energy parameters to obtain the energy intensity curve includes: The energy parameters are processed to obtain the coefficient of variation of the energy intensity. The formula for calculating the coefficient of variation is as follows: ； ； ； Where t is the total time. Let i be the energy intensity acquired during time t. Let be the mean of all energy intensities from the start to time t. Let be the standard deviation of all energy intensities from the start to time t. The coefficient of variation of energy intensity; Based on the obtained coefficient of variation and the energy parameters, the energy intensity curve is obtained; The energy intensity curve is processed based on a preset energy assessment model to obtain energy assessment information, including: The energy intensity curve is subjected to feature extraction to obtain energy features, which include intensity features, time features, and variation features. The energy features are input into the trained random forest model, and the independent evaluation results of each decision tree are output. The independent evaluation results are used to characterize whether the energy of the corresponding energy feature can be collected. The independent assessment results are statistically analyzed to obtain the energy assessment information, which is used to determine the collectable energy data from the independent assessment results by means of voting.

2. The energy management method according to claim 1, characterized in that, The energy allocation instruction includes a first allocation instruction or a second allocation instruction. The process of processing the power demand and the energy conversion information to generate the energy allocation instruction and send it to the energy conversion memory includes: The system identifies whether the converted energy in the energy conversion information meets the power supply requirements of the display module. If it does, the first allocation instruction is generated. The first allocation instruction is used to instruct the energy conversion memory to supply the energy that meets the power supply requirements to the display module and store the excess energy. If the converted energy does not meet the power supply requirements, a second allocation instruction is generated. The second allocation instruction is used to instruct the energy conversion memory to supply the converted energy and the stored energy to the display module together to meet the power supply requirements of the display module.

3. The energy management method according to claim 1, characterized in that, Before obtaining the power demand from the display module, the process also includes: The display area image is acquired in real time, and the display area image is used to indicate the image data of the viewing area of ​​the display screen captured in real time by the monitoring unit of the display module; The image of the display area is processed using image recognition technology to obtain the user's viewing status; Based on the user viewing situation and preset energy-saving rules, a screen control command is generated and sent to the display module. The screen control command is used to control the display module to reduce the brightness of the display screen or turn off the display screen if no user views the display screen within a preset time.

4. The energy management method according to claim 3, characterized in that, The screen control commands include a first control command, a second control command, and a third control command; the energy-saving rules include: If it is detected that the user is not watching within the preset first viewing time, a first control command is generated. The first control command is used to instruct the control display module to reduce the brightness of the display screen. If it is detected that the user is not watching within the preset second viewing time, a second control command is generated to control the display module to enter a standby mode where the display screen is off but can be quickly turned on. The second viewing time is longer than the first viewing time. If it is detected that the user is not watching within the preset third viewing time, a third control command is generated to control the display module to turn off the display screen. The third viewing time is longer than the second viewing time.

5. The energy management method according to claim 1, characterized in that, The display control system is also connected to a remote control module of the user terminal, and the method further includes: The energy assessment information and the power supply requirements are processed in real time to obtain a display information mapping table, which is used to indicate the energy parameters that the display screen can collect and the power supply requirements of the display screen. Send the display information mapping table to the remote control module; The system receives user control requests from the remote control module, generates user control instructions, and sends them to the display module. These user control instructions represent the user's control of the display screen's brightness and on / off state via the user terminal's remote control module.

6. The energy management method according to claim 5, characterized in that, The process of processing the power demand and the energy conversion information to generate an energy allocation instruction and send it to the energy conversion memory includes: Obtain stored energy information from the energy conversion memory; The system identifies whether the stored energy information and the energy information meet the power supply request of the display module. If they meet, the system generates the energy allocation instruction. If they do not meet, the system generates a warning message and sends it to the remote control module to remind the user that the energy is insufficient. The system also generates an energy storage instruction and sends it to the energy conversion memory. The energy storage instruction is used to control the energy conversion memory to store all the converted electrical energy.

7. An energy management device for a display screen, characterized in that, This device is used in a display control system, which is connected to an energy harvester, an energy conversion memory, and a display module. The device is equipped with the following modules: The data acquisition module is used to acquire energy parameters, including at least one of light intensity data, wind speed data, vibration data and temperature difference data, and is also used to acquire power supply requirements from the display module and energy conversion information fed back from the energy conversion memory. Energy harvesting module, used for: The energy parameters are analyzed and processed to obtain an energy intensity curve, which is used to indicate the intensity changes and stability of various energies in the working environment. The energy intensity curve is processed based on a preset energy assessment model to obtain energy assessment information, which is used to indicate the energy data that can be collected. Based on energy assessment information, an energy harvesting instruction is generated and sent to the energy harvester. The energy harvester is used to characterize the energy that can be harvested and to send it to the energy conversion storage for energy conversion. An energy allocation module is used to process the power supply demand and the energy conversion information, generate an energy allocation instruction and send it to the energy conversion memory. The energy allocation instruction is used to control the energy conversion memory to allocate the converted energy and the stored energy to meet the supply demand of the display module. The step of analyzing and processing the energy parameters to obtain the energy intensity curve includes: The energy parameters are processed to obtain the coefficient of variation of the energy intensity. The formula for calculating the coefficient of variation is as follows: ； ； ； Where t is the total time. Let i be the energy intensity acquired during time t. Let be the mean of all energy intensities from the start to time t. Let be the standard deviation of all energy intensities from the start to time t. The coefficient of variation of energy intensity; Based on the obtained coefficient of variation and the energy parameters, the energy intensity curve is obtained; The energy intensity curve is processed based on a preset energy assessment model to obtain energy assessment information, including: The energy intensity curve is subjected to feature extraction to obtain energy features, which include intensity features, time features, and variation features. The energy features are input into the trained random forest model, and the independent evaluation results of each decision tree are output. The independent evaluation results are used to characterize whether the energy of the corresponding energy feature can be collected. The independent assessment results are statistically analyzed to obtain the energy assessment information, which is used to determine the collectable energy data from the independent assessment results by means of voting.

8. A display screen, comprising a display module and a display control system, characterized in that, The display control system is used to implement the steps of the method according to any one of claims 1-6.

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