Display screen energy management method and device and display screen

Abstract

The invention relates to an energy management method and device of a display screen and the display screen. The energy management method is applied to the display control system and comprises the steps that energy parameters obtained through an energy collector are analyzed and processed, an energy intensity curve representing intensity change and stability is obtained, the energy intensity curve is processed based on a preset energy evaluation model, and the energy intensity curve is obtained. Energy data capable of being collected are obtained, and an energy collector is controlled to collect energy; the display control system can process the power supply demand of the display module and the energy conversion information fed back by the energy conversion memory to generate an energy distribution instruction to control the energy conversion memory to reasonably distribute the converted energy and the stored energy. By adopting the method, renewable resources can be converted into electric energy, self power supply of the display screen is realized, the display screen is more energy-saving and environment-friendly, meanwhile, the dependence on a power grid is eliminated, and the application scene of the display screen is enlarged.

Description

Technical Field

[0001] The present invention relates to the field of energy management technology, and in particular to an energy management method, device and display screen of a display screen with self-power supply capability. Background Art

[0002] Micro LED display is a new type of display technology. It is composed of tiny LED lamp beads, each of which can emit light independently. Compared with traditional displays, Micro LED displays have higher brightness, contrast and color saturation, and can present clearer and more vivid images. In addition, the response speed of Micro LED display is very fast, and it can achieve high-definition dynamic picture display without smear. In addition, its power consumption is relatively low, which is more energy-saving and environmentally friendly.

[0003] However, the existing Micro LED display screens mainly rely on traditional power grids for power supply. This means that a dedicated power grid power supply line must be equipped. This method has many problems: First, the energy consumption is high, which consumes a lot of electricity and is not energy-saving and environmentally friendly. Secondly, due to its reliance on specific power supply lines, its application scenarios are greatly limited and cannot be used in some places where there is no power grid coverage or it is difficult to lay power supply lines. Finally, the subsequent use costs are high, including electricity bills and maintenance costs of power supply lines. These current situations are seriously contrary to the development needs of Micro LED display screens for energy saving, environmental protection, convenience, and low cost. Summary of the invention

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

[0005] In a first aspect, the present application provides an energy management method for a display screen, which is applied to a display control system, wherein the display control system is connected to an energy collector, an energy conversion storage device, and a display module; the method comprises the following steps:

[0006] Acquiring energy parameters, where the energy parameters include at least one of light intensity data, wind speed data, vibration data, and temperature difference data;

[0007] Analyze and process the energy parameters to obtain the energy intensity curve, which is used to indicate the intensity change and stability of various energies in the working environment;

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

[0009] Generate an energy collection instruction based on the energy evaluation information and send it to the energy collector, the energy collection instruction is used to indicate that the energy that can be collected is collected and transmitted to the energy conversion storage for energy conversion;

[0010] Obtaining the power supply requirement of the display module and obtaining energy conversion information fed back from the energy conversion storage;

[0011] The power supply demand 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 characterize the control of the energy conversion memory to allocate the converted energy and the stored energy to meet the supply demand of the display module.

[0012] In one embodiment, analyzing and processing the energy parameters to obtain the energy intensity curve includes the following steps:

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

[0014]

[0015] Where, t is the total time, I i is the energy intensity obtained for the i-th time within time t, μ t is the mean of all energy intensities from the beginning to time t, σ t is the standard deviation of all energy intensities from the beginning to time t, CV t is the coefficient of variation of energy intensity;

[0016] Based on the obtained coefficient of variation and energy parameters, an energy intensity curve is obtained.

[0017] Further, the energy intensity curve is processed based on a preset energy evaluation model to obtain energy evaluation information, including the following steps:

[0018] Extract features from the energy intensity curve to obtain energy features, which include intensity features, time features, and change features;

[0019] 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 corresponding to the energy features can be collected;

[0020] The independent evaluation results are counted to obtain energy evaluation information, which is used to determine the energy data that can be collected from the independent evaluation results by voting.

[0021] In one embodiment, the energy allocation instruction includes a first allocation instruction or a second allocation instruction, and the power supply demand and energy conversion information are processed to generate an energy allocation instruction and send it to the energy conversion memory, specifically including:

[0022] Identify whether the energy converted in the energy conversion information meets the power supply requirement of the display module, and if so, generate a first allocation instruction to control the energy conversion memory to supply the converted energy to meet the power supply requirement outside the display module and store the excess energy;

[0023] If the converted energy does not meet the power supply requirement, a second allocation instruction is generated to instruct the energy conversion and storage module to supply the converted energy and the stored energy to the display module to meet the power supply requirement of the display module.

[0024] In one embodiment, before obtaining the power supply requirement from the display module, the following steps are also included:

[0025] Acquire a display area image in real time, where the display area image is used to indicate image data of a display screen viewing area captured in real time by a monitoring unit of the display module;

[0026] Process the display area image based on image recognition technology to obtain the user's viewing situation;

[0027] A screen control instruction is generated based on the user's viewing situation and preset energy-saving rules and sent to the display module. The screen control instruction is 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.

[0028] Further, the screen control instruction includes a first control instruction, a second control instruction and a third control instruction, and the energy saving rule includes:

[0029] If it is identified that the user does not watch the video within the preset first watching time, a first control instruction is generated, where the first control instruction is used to instruct the control display module to reduce the brightness of the display screen;

[0030] If it is recognized that the user is not watching within the preset second viewing time, a second control instruction is generated to control the display module to enter a standby mode in which the display screen is turned off but can be quickly lit up, and the second viewing time is greater than the first viewing time;

[0031] If it is identified that the user is not watching within a preset third viewing time, a third control instruction is generated to control the display module to turn off the display screen, and the third viewing time is greater than the second viewing time.

[0032] In one embodiment, the display control system is also connected to a remote control module of the user terminal, and the method further includes:

[0033] Processing the 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 can be collected by the display screen and the power supply requirements of the display screen;

[0034] Sending the display information mapping table to the remote control module;

[0035] A user control request from a remote control module is obtained to generate a user control instruction and send it to the display module. The user control instruction is used to indicate that the user controls the brightness and switch of the display screen through the remote control module of the user terminal.

[0036] Further, the power supply demand and energy conversion information are processed, and an energy allocation instruction is generated and sent to the energy conversion storage, including:

[0037] Acquiring storage energy information from the energy conversion storage device;

[0038] Identify whether the stored energy information and energy information meet the power supply request of the display module. If so, generate an energy allocation instruction. If not, generate an early warning message and send it to the remote control module to remind the user of insufficient energy. 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.

[0039] In a second aspect, the present application also provides an energy management device for a display screen, which is applied to a display control system, wherein the display control system is connected to an energy collector, an energy conversion storage device, and a display module; the device is configured with the following modules:

[0040] A data acquisition module, used to acquire energy parameters, the energy parameters including at least one of light intensity data, wind speed data, vibration data and temperature difference data, and also used to acquire power supply requirements from the display module and energy conversion information fed back from the energy conversion memory;

[0041] Energy harvesting modules for:

[0042] Analyze and process the energy parameters to obtain the energy intensity curve, which is used to indicate the intensity change and stability of various energies in the working environment;

[0043] The energy intensity curve is processed based on a preset energy evaluation model to obtain energy evaluation information, where the energy evaluation information is used to indicate energy data that can be collected;

[0044] Generate an energy collection instruction based on the energy evaluation information and send it to the energy collector, the energy collector is used to collect the energy that can be collected and transmit it to the energy conversion storage for energy conversion;

[0045] The energy distribution module 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 characterize and control the energy conversion memory to distribute the converted energy and stored energy to meet the supply demand of the display module.

[0046] In a third aspect, the present 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 energy management methods for the display screen.

[0047] The energy management method, device and display screen of the above-mentioned display screen convert suitable renewable resources into electrical energy through energy conversion by an energy harvester, and transmits the converted electrical energy to the display screen to achieve self-powering of the display screen, replacing power grid resources with renewable resources, thereby achieving the purpose of saving resources and protecting the environment. At the same time, the self-powered display screen gets rid of the dependence of traditional Micro LED displays on the power grid, so that it can be used in areas not covered by traditional power grids, expanding the application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0049] Figure 1 An application environment of an energy management method for a display screen provided in an embodiment of the present application;

[0050] Figure 2a A schematic diagram of a flow chart of an energy management method for a display screen provided in an embodiment of the present application;

[0051] Figure 2b A schematic diagram of the process of obtaining energy evaluation information in an embodiment of the present application;

[0052] Figure 3 A schematic diagram of a process for generating an energy allocation instruction in an embodiment of the present application;

[0053] Figure 4 This is a schematic diagram of the process of realizing the automatic power on / off function in the embodiment of the present application;

[0054] Figure 5a A schematic diagram of a flow chart of another display screen energy management method provided in an embodiment of the present application;

[0055] Figure 5b for Figure 5aSchematic diagram of the process of realizing energy monitoring and early warning function;

[0056] Figure 6 A structural block diagram of an energy management device for a display screen provided in an embodiment of the present application. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0058] The energy management method of the display screen provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown, the display control system 120 can be respectively connected to the display module 130, the energy harvester 140 and the energy conversion storage 150, and the energy conversion storage 150 can be respectively connected to the energy harvester 140 and the display module 130 through cables. The display control system 120 can be integrated on the Micro LED display screen 110, or placed on the cloud or other network servers.

[0059] The energy collector 140 is provided with a sensor integrated to obtain at least one of light intensity data, wind speed data, vibration data and temperature difference data, and an energy collector corresponding to the sensor for collecting at least one energy. Preferably, the energy collector 140 can be one or more energy collection devices such as solar panels, wind turbines, vibration energy collectors, temperature difference power generation devices, etc. The energy collector 140 obtains energy parameters through sensors and sends them to the display control system 120, and collects corresponding energy according to the energy collection instructions fed back by the display control system 120, and transmits the collected energy to the energy conversion storage 150 for conversion.

[0060] The energy conversion storage device 150 includes a conversion device for converting the collected energy into electric energy suitable for use by the Micro LED display screen 110 and an energy storage device for storing the converted electric energy, wherein the conversion device may be a DC-DC converter, an inverter or other suitable power regulation equipment, and the energy storage device may be a lithium-ion battery or a supercapacitor. The energy conversion storage device 150 receives the energy transmitted by the energy harvester 140 and sends the relevant information of the converted electric energy to the display control system, and the display control system generates an energy allocation instruction to the energy conversion storage device 150 according to the power supply demand of the display module 130 and the relevant information of the converted electric energy, so as to distribute the converted energy and the stored energy to meet the power supply demand of the display module 130.

[0061] In an exemplary embodiment, Figure 2aAs shown, it shows a schematic flow chart of an energy management method for a display screen according to an embodiment of the present application. The method is applied to a display control system, and the specific steps are as follows:

[0062] S210, acquiring energy parameters, where the energy parameters include at least one of light intensity data, wind speed data, vibration data, and temperature difference data.

[0063] Preferably, in the process of acquiring energy parameters, data is first collected using various sensors on the energy collector. For example, to collect light intensity data, light of different intensities can be converted into electrical signals through a photosensitive sensor, thereby obtaining light intensity values. For example, in an outdoor environment, when the sun is abundant, the light intensity data detected by the photosensitive sensor is higher; on a cloudy day or indoors, the light intensity data is relatively low. After the energy collector collects these data, it is transmitted to the display control system through a communication connection.

[0064] S220, analyzing and processing the energy parameters to obtain an energy intensity curve, where the energy intensity curve is used to indicate intensity changes and stability of various energies in the working environment.

[0065] Preferably, the energy parameter can be processed using the coefficient of variation formula, and the calculation steps are as follows:

[0066] Step 1: Process the energy parameters to obtain the coefficient of variation of energy intensity. The calculation formula of the coefficient of variation is as follows:

[0067]

[0068] Where, t is the total time, I i is the energy intensity obtained for the i-th time within time t, μ t is the mean of all energy intensities from the beginning to time t, σ t is the standard deviation of all energy intensities from the beginning to time t, CV t is the coefficient of variation of energy intensity;

[0069] Step 2: Based on the obtained coefficient of variation and energy parameters, an energy intensity curve is obtained.

[0070] Preferably, the total time t can be used as the horizontal axis and the coefficient of variation CV t The stability curve of energy intensity is plotted with y as the ordinate. As time goes by, if the energy intensity curve fluctuates within a small range, it means that the measured energy intensity is relatively stable; if the curve fluctuates greatly, it means that the stability of energy intensity is poor.

[0071] S230, processing the energy intensity curve based on a preset energy evaluation model to obtain energy evaluation information, where the energy evaluation information is used to indicate energy data that can be collected.

[0072] First, the preset energy assessment model will analyze the energy intensity curve, and obtain energy assessment information by performing a series of calculations and assessments on factors such as the peak value and fluctuation of the curve. This energy assessment information can determine which energy can be collected, avoid collecting low-intensity energy that reduces the overall collection efficiency, and prevent large fluctuations in energy from causing damage to the equipment, thereby improving the reliability and service life of the system.

[0073] S240, generating an energy collection instruction based on the energy evaluation information and sending it to the energy collector, where the energy collection instruction is used to indicate that the energy that can be collected is collected and transmitted to the energy conversion storage for energy conversion.

[0074] Preferably, after the energy device receives the energy collection instruction, the corresponding energy collection device capable of collecting energy is started to collect energy, and the energy is transmitted to the energy conversion storage device for energy conversion through power regulation equipment such as inverters and DC-DC converters. Taking solar energy as an example, solar energy is collected by solar panels, and the energy collector transmits the collected solar energy to the energy conversion storage device. Exemplarily, 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 panel into alternating current so as to better connect with the power grid or other electrical equipment. The DC-DC converter can adjust the voltage level according to different needs to achieve efficient storage and utilization of energy.

[0075] S250, obtaining a power supply requirement of the display module, and obtaining energy conversion information fed back from an energy conversion storage.

[0076] S260, processing the power supply demand and energy conversion information, generating an energy allocation instruction and sending it to the energy conversion memory, the energy allocation instruction is used to characterize the control of the energy conversion memory to allocate the converted energy and the stored energy to meet the power supply demand of the display module.

[0077] To sum up, the energy management method of the display screen provided in the embodiment of the present application can collect energy parameters of renewable resources, analyze the energy parameters to obtain suitable collectible energy, convert the collectible energy into electrical energy through energy conversion, and distribute the energy according to the converted electrical energy and the power supply demand of the display screen. By utilizing renewable resources instead of direct power supply from traditional power grids, the purpose of saving resources and protecting the environment is achieved. At the same time, the self-powered display screen gets rid of the dependence of traditional Micro LED display screens on the power grid, so it can be used in areas not covered by traditional power grids, expanding the application scenarios.

[0078] Preferably, see Figure 2b, which shows a schematic diagram of the process of obtaining energy evaluation data in an embodiment of the present application, and the specific steps are as follows:

[0079] S231, extracting features from the energy intensity curve to obtain energy features, which include intensity features, time features, and change features.

[0080] Exemplarily, the display control system can calculate the mean, median, maximum, minimum, standard deviation and other statistics of energy intensity as the intensity characteristics of energy, calculate the distribution of energy in different time periods as the time characteristics of energy, such as the difference in energy intensity between day and night; calculate the rate of change, first-order difference and second-order difference of energy intensity as the change characteristics of energy to reflect the changing trend of energy intensity.

[0081] S232, input the energy feature into the trained random forest model, and output the independent evaluation result of each decision tree. The independent evaluation result is used to characterize whether the energy corresponding to the energy feature can be collected.

[0082] Preferably, the construction of the random forest model includes the following steps:

[0083] Step 1: Determine the number, maximum depth, and minimum split degree of decision trees.

[0084] Preferably, the more decision trees (n_est imators), the better the performance of the model, but the computational cost will also increase. Maximum depth of decision tree (max_depth): limit the growth depth of decision tree to prevent data overfitting. Minimum number of sample splits (min_sample_split) can determine how many samples a node needs to split. Exemplarily, a suitable n_est imators, n_est imators and min_sample_split can be determined by experiment, such as starting from a smaller value, starting with n_est imators = 100, n_est imators = 5 and min_sample_split = 2, and gradually increasing to observe changes in model performance.

[0085] Step 2: Train the decision tree.

[0086] Preferably, a portion of samples is randomly selected from the input energy intensity raw data set as the training set for each decision tree. Exemplarily, a sampling method with replacement can be used, that is, the same sample may appear multiple times in different decision trees. When each node is split, a portion of features is randomly selected from all features, and then the best features are selected for splitting. This can increase the diversity of the decision tree and reduce the risk of overfitting. According to the selected features and splitting criteria, the nodes are continuously split until the stopping condition is met. The stopping condition can be that the maximum depth is reached, the number of samples in the node is less than a certain threshold, the purity of the node is high enough, etc. When predicting, for new input data, each decision tree will output a result, and each result is independent of each other. For example, if there are 100 decision trees, 60 of them predict that the energy can be collected, and 40 predict that it cannot be collected.

[0087] S233, the independent evaluation results are counted to obtain energy evaluation information, and the energy evaluation information is used to determine the energy data that can be collected from the independent evaluation results by voting.

[0088] Preferably, the energy allocation instruction may be a first allocation instruction or a second allocation instruction. Figure 3 , which shows a schematic diagram of the process of generating energy allocation instructions in an embodiment of the present application, and the specific steps are as follows:

[0089] S310, identifying whether the energy converted in the energy conversion information meets the power supply requirement of the display module, and if so, generating a first allocation instruction, the first allocation instruction is used to instruct the control energy conversion memory to supply the converted energy that meets the power supply requirement to the outside of the display module and store the excess energy.

[0090] For example, in the process of storing electric energy, the electric energy needs to be converted again, and this process is accompanied by energy consumption. Compared with first storing the energy in the energy conversion storage device and then supplying the display screen, directly supplying the energy that meets the power supply demand to the display module eliminates the process of electric energy conversion. In the case of direct supply, the energy loss that may be caused by the process of taking out the energy after storage and supplying it to the display screen is avoided, so that the converted electric energy can be used more efficiently, the energy utilization efficiency is improved, and it is more in line with the requirements of energy conservation and environmental protection.

[0091] S320. If the converted energy does not meet the power supply requirement, a second allocation instruction is generated, and the second allocation instruction is used to instruct the energy conversion and storage module to supply the converted energy and the stored energy to the display module to meet the power supply requirement of the display module.

[0092] In summary, the energy management method for the display screen provided in the embodiment of the present application can collect energy parameters of renewable resources, analyze the energy parameters to obtain suitable collectible energy, convert the collectible energy into electrical energy through energy conversion, and distribute the energy according to the converted electrical energy and the power supply demand of the display screen. It can not only realize the self-power supply of the display screen by transmitting the converted electrical energy to the display screen, but also store the excess electrical energy for auxiliary power supply when the converted energy is insufficient to supply the display screen. The utilization of renewable resources replaces the direct power supply of the traditional power grid, thereby achieving the purpose of saving resources and protecting the environment. At the same time, the self-powered display screen gets rid of the dependence of the traditional Micro LED display screen on the power grid, so it can be used in areas not covered by the traditional power grid, expanding the application scenarios.

[0093] In actual use environments, the display screen is often turned on for a long time without anyone watching, resulting in unnecessary energy consumption. This further increases the pressure on energy collection for self-powered display screens. Figure 4 As shown, it shows a schematic diagram of a process of realizing the automatic power on / off function in an embodiment of the present application before obtaining the power supply demand from the display module. The specific process is as follows:

[0094] S410, acquiring a display area image in real time, where the display area image is used to indicate image data of a display screen viewing area captured in real time by a monitoring unit of a display module.

[0095] Preferably, a micro surveillance camera is provided on the Micro LED display screen. The monitoring unit on the display module can control the micro surveillance camera to start capturing images of the viewing area of ​​the display screen in real time with high resolution and a certain frame rate when the display screen is running. The monitoring unit converts the optical signal into an electrical signal and sends it to the display control system to realize real-time monitoring of the viewing area.

[0096] S420: Process the display area image based on image recognition technology to obtain the user's viewing situation.

[0097] Preferably, a convolutional neural network algorithm may be used to process the display area image, and the processing steps are as follows:

[0098] Step 1: Collect a large number of labeled image samples of different users viewing the display screen for model training and building a viewing recognition model.

[0099] Step 2: Input the display area image into the viewing recognition model for processing to obtain the user's viewing situation.

[0100] Exemplarily, during the processing, the convolution layer of the network extracts various features of the image, such as edges, textures, etc. The pooling layer downsamples the features to reduce the amount of calculation while retaining the main features. After multiple convolution and pooling layers, the fully connected layer conducts a comprehensive analysis of the extracted features to determine whether the user is looking at the display screen. For example, it is possible to determine whether the user is looking directly at the display screen based on the direction and angle of the user's face, and to determine the degree of concentration based on the state of the eyes, thereby obtaining a more accurate user viewing situation.

[0101] S430: Generate a screen control instruction based on the user's viewing situation and the preset energy-saving rules and send it to the display module, where the screen control instruction is 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.

[0102] Preferably, the screen control instruction includes a first control instruction, a second control instruction and a third control instruction, and the above energy-saving rule includes the following determination method:

[0103] S431, if it is recognized that the user does not watch the video within the preset first watching time, a first control instruction is generated, where the first control instruction is used to instruct the control display module to reduce the brightness of the display screen;

[0104] S432: if it is recognized that the user is not watching within the preset second watching time, a second control instruction is generated to control the display module to enter a standby mode in which the display screen is turned off but can be quickly lit up, and the second watching time is greater than the first watching time;

[0105] S433: If it is identified that the user is not watching within a preset third viewing time, a third control instruction is generated to control the display module to turn off the display screen, and the third viewing time is greater than the second viewing time.

[0106] In a 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 the user temporarily leaves the judgment range of the display screen and the user is not detected using the display screen within 10 minutes, the display screen will automatically reduce the brightness to reduce the energy consumption. At the same time, the low brightness display screen will not affect other people around. When the user is not detected using the display screen for more than 20 minutes, the display screen will automatically enter the standby mode, further saving energy and being able to quickly light up and enter the working state when the user comes back. When the user is not detected using the display screen for more than 30 minutes, the display screen will automatically enter the shutdown mode to avoid unnecessary energy consumption. At this time, the user needs to restart the display screen if he needs to use it.

[0107] In another exemplary embodiment, the display control system of the Micro LED display screen is also connected to the remote control module of the user terminal to enable the user to remotely monitor the display screen. Figure 5a As shown, it shows a flow chart of an energy management method for a display screen with a remote monitoring function provided in an embodiment of the present application. Preferably, this embodiment has all the functions of the energy management method shown in FIG. 2 . The specific steps for realizing the remote monitoring function in the method are as follows:

[0108] S570, processing the energy evaluation information and the power supply demand in real time to obtain a display information mapping table, where the display information mapping table is used to indicate energy parameters that can be collected by the display screen and the power supply demand of the display screen;

[0109] S580, sending the display information mapping table to the remote control module;

[0110] S590: Obtain a user control request from the remote control module to generate a user control instruction and send it to the display module. The user control instruction is used to indicate that the user controls the brightness and switch of the display screen through the remote control module of the user terminal.

[0111] In a specific embodiment, the user can remotely control the display screen through the brightness adjustment and switch control on the control program corresponding to the remote control module of the user terminal. When the user feels that the current display screen is too bright and wants to dim it, the brightness is adjusted to a lower brightness value in the control program. The remote control module of the user terminal will convert the request for brightness adjustment into a specific data format and send it out through the wireless network. At the receiving end, the display control system continuously monitors the signal from the remote control module. After receiving the brightness adjustment request, the corresponding user control instruction is generated to adjust the brightness of the display screen to the brightness set by the user. Similarly, if the user needs to turn off the display screen, the off button in the switch control in the control program can be used. After the remote control module sends this off request, the display control system generates a user control instruction and sends it to the display module, and the display module immediately turns off the power of the display screen and stops displaying the picture.

[0112] In actual usage scenarios, when the energy collected in the working environment is not enough to power the display screen alone, the energy stored in the energy conversion memory determines whether the display screen can be used normally. Therefore, when powering the display screen, it is also necessary to consider whether the sum of the stored power and the converted power is sufficient to power the display screen. Figure 5b As shown, it shows a schematic diagram of the process of realizing the energy monitoring and early warning function, and the specific steps are as follows:

[0113] S561, obtaining storage energy information from the energy conversion storage device;

[0114] S562, identify whether the stored energy information and the energy information meet the power supply request of the display module, and if so, generate an energy allocation instruction; if not, generate an early warning message and send it to the remote control module to remind the user of insufficient energy, and 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.

[0115] In summary, the energy management method of the display screen provided in the embodiment of the present application is further optimized and expanded on the basis of the energy management method shown in Figure 2. Among them, by introducing the automatic power on / off function, the energy consumption of the display screen can be significantly reduced when no one is watching the display screen for a long time, thereby effectively achieving the purpose of saving energy. At the same time, the monitoring module of the display control system can help the user to adjust the brightness of the display screen or turn off the display screen remotely when necessary, which greatly improves the user's convenience and also helps to further save energy.

[0116] Based on the same inventive concept, Figure 6 As shown, the embodiment of the present application further provides an energy management device 600 for a display screen, which is applied to a display control system, and the display control system is connected to an energy collector, an energy conversion storage device and a display module, wherein the energy management device 600 is configured with the following modules:

[0117] The data acquisition module 610 is used to acquire energy parameters, which include 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;

[0118] The energy harvesting module 620 is used to:

[0119] Analyze and process the energy parameters to obtain the energy intensity curve, which is used to indicate the intensity change and stability of various energies in the working environment;

[0120] The energy intensity curve is processed based on a preset energy evaluation model to obtain energy evaluation information, where the energy evaluation information is used to indicate energy data that can be collected;

[0121] Generate an energy collection instruction based on the energy evaluation information and send it to the energy collector, the energy collector is used to collect the energy that can be collected and transmit it to the energy conversion storage for energy conversion;

[0122] The energy distribution module 630 is used to process the 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 characterize the control of the energy conversion memory to distribute the converted energy and stored energy to meet the supply demand of the display module.

[0123] Exemplarily, the energy collection 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 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 independent evaluation results of each decision tree, and is used to perform statistics on the independent evaluation results to obtain energy evaluation information.

[0124] The energy allocation module may include an identification and generation unit, which is used to identify whether the energy converted in the energy conversion information meets the power supply requirements of the display module. If so, a first allocation instruction is generated, and if the converted energy does not meet the power supply requirements, a second allocation instruction is generated; wherein the first allocation instruction is used to instruct the control energy conversion memory to supply the converted energy that meets the power supply requirements to the display module and store the excess energy, and the second allocation instruction is used to instruct the control energy conversion 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.

[0125] Preferably, the display control system is further configured with a control instruction generation module, and the data acquisition module is further used to acquire a display area image in real time, the display area image is used to indicate the image data of the display screen viewing area captured in real time by the monitoring unit of the display module; the control instruction generation module is used to process the display area image based on the image recognition technology to obtain the user viewing situation, and generate a screen control instruction based on the user viewing situation and the preset energy-saving rules and send it to the display module, the screen control instruction is used to control the display module to reduce the brightness of the display screen or turn off the display screen when no user views the display screen within a preset time, wherein the screen control instruction includes a first control instruction, a second control instruction and a third control instruction, and the energy-saving rules include the following judgment method:

[0126] If it is identified that the user does not watch the video within the preset first watching time, a first control instruction is generated, where the first control instruction is used to instruct the control display module to reduce the brightness of the display screen;

[0127] If it is recognized that the user is not watching within the preset second viewing time, a second control instruction is generated to control the display module to enter a standby mode in which the display screen is turned off but can be quickly lit up, and the second viewing time is greater than the first viewing time;

[0128] If it is identified that the user is not watching within a preset third viewing time, a third control instruction is generated to control the display module to turn off the display screen, and the third viewing time is greater than the second viewing time.

[0129] Preferably, the display control system is also connected to the remote control module of the user terminal, and the display control system is also configured with a corresponding monitoring module, which is used to process the 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 can be collected by the display screen and the power supply requirements of the display screen, and is also used to obtain the user control request from the remote control module to generate a user control instruction and send it to the display module, the user control instruction is used to indicate that the user controls the brightness and switch of the display screen through the remote control module of the user terminal;

[0130] Preferably, the monitoring module is also used to obtain storage energy information from the energy conversion storage device; and identify whether the storage energy information and the energy information meet the power supply request of the display module. If so, an energy allocation instruction is generated; if not, an early warning message is generated and sent to the remote control module to remind the user of insufficient energy, and an energy storage instruction is generated and sent to the energy conversion storage device. The energy storage instruction is used to control the energy conversion storage device to store all the converted electrical energy.

[0131] To summarize, the energy management device for the display screen provided in the embodiment of the present application can collect energy parameters of renewable resources, analyze the energy parameters to obtain suitable collectable energy, convert the collectable energy into electrical energy through energy conversion, and distribute the energy according to the converted electrical energy and the power supply demand of the display screen. It can not only transmit the converted electrical energy to the display screen to realize the self-power supply of the display screen, but also store the excess electrical energy for auxiliary power supply when the converted energy is insufficient to supply the display screen. The utilization of renewable resources replaces the direct power supply of the traditional power grid, thereby achieving the purpose of saving resources and protecting the environment. At the same time, the self-powered display screen gets rid of the dependence of the traditional Micro LED display screen on the power grid, so it can be used in areas not covered by the traditional power grid, expanding the application scenarios.

[0132] At the same time, the automatic power on and off function and the remote monitoring function are introduced. The automatic power on and off function can reduce the brightness of the display screen or even turn off the display screen to reduce the energy consumption of the display screen when no one is watching the display screen for a long time; and the remote monitoring function enables the user to adjust the brightness of the display screen or turn off the display screen remotely when they need to, which greatly improves the user's convenience and also helps to further save energy.

[0133] 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-mentioned method embodiments.

[0134] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can refer to the partial description of the method embodiments. The device embodiments described above are only schematic, wherein the components described as separate parts may or may not be physically separated, and the parts displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the disclosed solution. A person of ordinary skill in the art can understand and implement it without paying any creative work.

[0135] The above-mentioned embodiments only express several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for energy management of a display screen, characterized in that: Applied to a display control system, the display control system is connected with an energy collector, an energy conversion storage device and a display module; the method comprises: Acquiring energy parameters, wherein the energy parameters include at least one of light intensity data, wind speed data, vibration data, and temperature difference data; Analyzing and processing the energy parameters to obtain an energy intensity curve, wherein the energy intensity curve is used to indicate intensity changes and stability of various energies in the working environment; Processing the energy intensity curve based on a preset energy evaluation model to obtain energy evaluation information, wherein the energy evaluation information is used to indicate energy data that can be collected; Generate an energy collection instruction based on the energy evaluation information and send it to the energy collector, wherein the energy collection instruction is used to indicate that the energy that can be collected is collected and transmitted to the energy conversion storage for energy conversion; Obtaining the power supply requirement of the display module and obtaining energy conversion information fed back from the energy conversion storage; The power supply demand and the energy conversion information are processed to generate an energy allocation instruction and send it to the energy conversion memory, wherein the energy allocation instruction is used to characterize the control of the energy conversion memory to allocate the converted energy and the stored energy to meet the power supply demand of the display module.

2. The energy management method according to claim 1, characterized in that: The analyzing and processing the energy parameters to obtain an energy intensity curve includes: The energy parameters are processed to obtain the coefficient of variation of the energy intensity. The calculation formula of the coefficient of variation is as follows: Where, t is the total time, I i is the energy intensity obtained for the i-th time within time t, μ t is the mean of all energy intensities from the beginning to time t, σ t is the standard deviation of all energy intensities from the beginning to time t, CV t is the coefficient of variation of energy intensity; The energy intensity curve is obtained based on the obtained coefficient of variation and the energy parameter.

3. The energy management method according to claim 2, characterized in that: The energy intensity curve is processed based on a preset energy assessment model to obtain energy assessment information, including: Extracting features from the energy intensity curve to obtain energy features, wherein the energy features include intensity features, time features, and change features; Input the energy feature into the trained random forest model, and output the independent evaluation result of each decision tree, wherein the independent evaluation result is used to characterize whether the energy corresponding to the energy feature can be collected; The independent evaluation results are counted to obtain the energy evaluation information, and the energy evaluation information is used to determine the energy data that can be collected from the independent evaluation results in a voting manner.

4. 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, and the processing of the power supply demand and the energy conversion information to generate an energy allocation instruction and send the energy allocation instruction to the energy conversion memory includes: Identify whether the energy converted in the energy conversion information meets the power supply requirement of the display module, and if so, generate the first allocation instruction, wherein the first allocation instruction is used to instruct the energy conversion memory to control the energy conversion memory to supply the energy that meets the power supply requirement to the outside of the display module and store the excess energy; If the converted energy does not meet the power supply requirement, the second allocation instruction is generated, and the second allocation instruction is used to instruct and control the energy conversion and storage module to supply the converted energy and the stored energy to the display module to meet the power supply requirement of the display module.

5. The energy management method according to claim 1, characterized in that: Before obtaining the power supply requirement from the display module, the method further includes: Acquire a display area image in real time, where the display area image is used to indicate image data of a display screen viewing area captured in real time by a monitoring unit of a display module; Processing the display area image based on image recognition technology to obtain user viewing conditions; A screen control instruction is generated based on the user viewing situation and preset energy-saving rules and sent to the display module. The screen control instruction is used to control the display module to reduce the brightness of the display screen or turn off the display screen when no user views the display screen within a preset time.

6. The energy management method according to claim 5, characterized in that: The screen control instructions include a first control instruction, a second control instruction and a third control instruction, and the energy-saving rules include: If it is identified that the user does not watch the video within the preset first watching time, a first control instruction is generated, wherein the first control instruction is used to instruct the control display module to reduce the brightness of the display screen; If it is recognized that the user is not watching within a preset second viewing time, a second control instruction is generated to control the display module to enter a standby mode in which the display screen is turned off but can be quickly lit up, and the second viewing time is greater than the first viewing time; If it is identified that the user does not watch within a preset third viewing time, a third control instruction is generated to control the display module to turn off the display screen, and the third viewing time is greater than the second viewing time.

7. The energy management method according to claim 1, characterized in that: The display control system is also connected to a remote control module of a user terminal, and the method further comprises: Processing the energy evaluation information and the power supply demand in real time to obtain a display information mapping table, wherein the display information mapping table is used to indicate energy parameters that can be collected by the display screen and the power supply demand of the display screen; Sending the display information mapping table to the remote control module; A user control request from a remote control module is obtained to generate a user control instruction and send it to the display module. The user control instruction is used to indicate that the user controls the brightness and switch of the display screen through the remote control module of the user terminal.

8. The energy management method according to claim 7, characterized in that: The processing of the power supply demand and the energy conversion information, generating an energy allocation instruction and sending the instruction to the energy conversion memory includes: Acquiring storage energy information from the energy conversion storage device; Identify whether the stored energy information and the energy information meet the power supply request of the display module, and if so, generate the energy allocation instruction; if not, generate a warning message and send it to the remote control module to remind the user of insufficient energy, and generate an energy storage instruction and send it to the energy conversion memory, and the energy storage instruction is used to control the energy conversion memory to store all the converted electrical energy.

9. An energy management device for a display screen, characterized in that: Applied to a display control system, the display control system is connected to an energy collector, an energy conversion storage device and a display module, and the device is configured with the following modules: A data acquisition module, used to acquire energy parameters, wherein the energy parameters include 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 modules for: Analyzing and processing the energy parameters to obtain an energy intensity curve, wherein the energy intensity curve is used to indicate intensity changes and stability of various energies in the working environment; Processing the energy intensity curve based on a preset energy evaluation model to obtain energy evaluation information, wherein the energy evaluation information is used to indicate energy data that can be collected; Generate an energy collection instruction based on the energy evaluation information and send it to the energy collector, the energy collector is used to collect the energy that can be collected and transmit it to the energy conversion storage for energy conversion; An energy distribution module is used to process the power supply demand and the energy conversion information, generate an energy distribution instruction and send it to the energy conversion memory, and the energy distribution instruction is used to characterize the control of the energy conversion memory to distribute the converted energy and the stored energy to meet the supply demand of the display module.

10. 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 1-8.

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