Intelligent large screen power supply system, method and equipment based on ambient light capture and medium

Abstract

The invention provides an intelligent large screen power supply system, method and device based on ambient light capture and a medium, and belongs to the technical field of energy-saving control. The system comprises an ambient light capturing module used for collecting ambient light and converting the ambient light into electric energy; the energy management module is used for collecting current ambient light intensity, processing electric energy, dynamically distributing the electric energy to a display system of the intelligent large screen for power supply or charging an energy storage module according to an instruction of the intelligent control module, and feeding back light intensity and energy flow data to the intelligent control module; the energy storage module is used for storing surplus electric energy under the control of the energy management module, outputting electric energy to the energy management module to maintain the operation of the display system when the light intensity is insufficient, and receiving a state detection instruction of the intelligent control module through a sleep wake-up mechanism; and the intelligent control module is used for receiving the light intensity data, generating an electric energy distribution and display parameter adjustment strategy, and controlling power supply mode switching of the energy management module and dormancy awakening of the energy storage module.

Description

Technical Field

[0001] The present invention belongs to the field of energy-saving control technology, and more specifically relates to an intelligent large-screen power supply system, method, device and medium based on ambient light capture. Background Art

[0002] In current smart screen applications, especially in commercial and outdoor settings, high energy consumption and power supply dependency are particularly prominent. Due to the rigid demand for continuous high-brightness displays and complex computations in these scenarios, smart screens generally face the dilemma of excessive energy consumption and heavy reliance on fixed power sources. This situation has led to a series of chain reactions: In terms of deployment scenarios, smart screens are severely restricted in their installation locations, requiring proximity to power outlets, significantly reducing the range of possible deployment areas; operating costs have consequently risen sharply, and electricity bills have become a significant burden; Furthermore, high energy consumption has exacerbated environmental pressures, resulting in high carbon emissions and a negative impact on sustainable development.

[0003] Traditional energy-saving solutions primarily focus on hardware-level optimization, such as reducing screen brightness and improving backlight design. However, these methods are limited in their ability to balance display quality with energy consumption, making it difficult to effectively reduce energy consumption while maintaining high-quality display quality. More importantly, traditional solutions cannot enable smart large-screen displays to operate independently from the power grid, significantly limiting their application scenarios.

[0004] Currently, mainstream power supply solutions fall into two main categories. One is direct connection to the municipal power grid. This approach is suitable for large, high-power displays and provides a stable and sufficient power supply. However, in practice, direct use of the mains has numerous drawbacks. It is highly dependent on the external grid. To prevent power outages from impacting the operation of large displays, redundant power supplies, such as dual-circuit power supply systems, are required. This not only increases system complexity and cost, but also presents numerous challenges in cabling installation. Armored or PVC pipes are required to protect against corrosion and animal damage, further increasing deployment complexity and cost.

[0005] Another type of power supply solution is for areas without mains power coverage, such as along highways and in remote scenic areas. These solutions are usually equipped with equipment such as solar panels, energy storage batteries, and inverters, or other temporary power supply solutions. However, these external devices have a low degree of integration with the screen itself and fail to achieve intelligent linkage with the display system. In off-grid scenarios such as emergency command and field operations, smart large screens cannot access the power grid and can only rely on bulky batteries for power. However, existing batteries have a short battery life, and frequent charging and discharging will accelerate equipment aging, leading to increased maintenance and replacement costs. In addition, existing energy storage technologies have limited energy density and fail to form a closed-loop management with the screen's energy collection system, failing to fully realize energy utilization efficiency and making it difficult to meet the needs of smart large screens for continuous and stable power supply in off-grid scenarios. Summary of the Invention

[0006] In response to the above problems, the purpose of the present invention is to provide a smart large-screen power supply system, method, equipment and medium based on ambient light capture. Through efficient collection of ambient light, intelligent energy management, energy storage and endurance, display adaptive adjustment and compact integrated design, low-power consumption, sustainable green power supply for smart large screens is achieved and the display experience is improved.

[0007] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: In a first aspect, an embodiment of the present application provides a smart large-screen power supply system based on ambient light capture, comprising: an ambient light capture module, an energy management module, an energy storage module, and an intelligent control module; The ambient light capture module is set on the display panel of the smart large screen and is used to collect ambient light, convert the ambient light into electrical energy, and transmit it to the energy management module; The energy management module is used to collect the current ambient light intensity and send it to the intelligent control module. After processing the received electric energy, it is dynamically distributed to the display system of the smart large screen or to charge the energy storage module according to the instructions of the intelligent control module, and the light intensity and energy flow data are fed back to the intelligent control module. The energy storage module is used to store surplus electric energy under the control of the energy management module. When the light intensity is insufficient, it outputs electric energy to the energy management module to maintain the operation of the display system, and receives status detection instructions from the intelligent control module through the sleep wake-up mechanism. The intelligent control module is used to receive the light intensity data transmitted by the energy management module, generate power distribution and display parameter adjustment strategies, and control the power supply mode switching of the energy management module and the dormancy and wake-up of the energy storage module.

[0008] In an optional embodiment, the ambient light capture module includes a transparent photovoltaic film unit and a light capture optical structure unit; The transparent photovoltaic thin film unit covers the display panel surface of the smart screen, which is used to collect ambient light and convert it into electrical energy of preset voltage and transmit it to the energy management module; The light-capturing optical structure unit is bonded to the transparent photovoltaic film unit to enhance the capture efficiency of low-angle light through optical coupling.

[0009] In an optional embodiment, the energy management module includes a light intensity detection and threshold determination unit, a photovoltaic power processing unit, and a power distribution and charging management unit; The light intensity detection and threshold determination unit is connected to the intelligent control module and includes an ambient light sensor and a threshold comparison circuit. The ambient light sensor is located on the frame of the intelligent large screen and is used to collect ambient light intensity signals and send them to the threshold comparison circuit. The threshold comparison circuit has a built-in editable threshold register, which compares the ambient light intensity signal with a preset threshold value, and generates a high and low level signal indicating the light intensity status based on the comparison result and sends it to the intelligent control module. The photovoltaic power processing unit is connected to the transparent photovoltaic thin film unit to boost the power, perform MPPT processing on the power, and transmit it to the power distribution and charging management unit; The power distribution and charging management unit is respectively connected to the photovoltaic power processing unit, energy storage module, intelligent control module and the display system of the smart large screen, and is used to execute switch switching actions according to the instructions of the intelligent control module to supply power to the display system or energy storage module of the smart large screen.

[0010] In an optional embodiment, the energy storage module includes an energy storage battery unit and a sleep / wake-up control unit; The energy storage battery unit is connected to the power distribution and charging management unit, and has a built-in battery pack and battery management system for storing surplus power; The sleep and wake-up control unit is connected to the energy storage battery unit and the intelligent control module respectively, and is used to perform periodic wake-up according to the sleep strategy sent by the intelligent control module; when in sleep mode, the energy storage module and built-in non-essential circuits are turned off to reduce power consumption; when awakened, the battery management system is activated to detect the power level of the battery pack and send the power level information to the intelligent control module.

[0011] In an optional embodiment, the intelligent control module includes a main controller unit; The main controller unit is respectively connected to the light intensity detection and threshold judgment unit, the power distribution and charging management unit, and the sleep and wake-up control unit, and is used to generate a power distribution strategy based on the high and low level signals representing the light intensity status and the power information; if the high and low level signals of the light intensity status are high and the power information is higher than the preset SOC value, an instruction is sent to the power distribution and charging management unit to enable it to execute a switch switching action to supply power to the display system of the smart large screen; otherwise, an instruction is sent to the power distribution and charging management unit to enable it to execute a switch switching action to supply power to the energy storage module.

[0012] In an optional embodiment, the intelligent control module further includes a display collaborative control unit; The display collaborative control unit is connected to the ambient light sensor and the display system of the smart large screen, and is used to obtain the ambient light intensity signal in real time. When the change of the ambient light intensity signal reaches a preset intensity difference, a control signal is sent to the display system to control the smart large screen to adjust the backlight brightness.

[0013] In an optional embodiment, the ambient light capture module further includes a spectrum optimization filter unit; The spectral optimization filter unit is covered on top of the transparent photovoltaic thin film unit. It is used to block ultraviolet light and infrared light that are ineffective or harmful to photoelectric conversion by selectively transmitting a spectrum that matches the absorption peak of the photovoltaic material, thereby improving the photoelectric conversion efficiency of the transparent photovoltaic thin film unit without affecting the transmittance and color reproduction of the display panel.

[0014] In a second aspect, an embodiment of the present application further provides a method for powering a smart large screen based on ambient light capture, comprising: Ambient light is collected by an ambient light capture module provided on the intelligent large-screen display panel, and the ambient light is converted into electrical energy and then transmitted to the energy management module; The energy management module collects the current ambient light intensity and sends it to the intelligent control module, while also performing voltage boosting and maximum power point tracking on the received electrical energy. The energy management module dynamically distributes the processed electric energy into two power supply modes according to the instructions of the intelligent control module. The power supply modes include a display power supply mode and an energy storage charging mode. The display power supply mode prioritizes powering the display system of the smart large screen. The energy storage charging mode charges the energy storage module to store surplus electric energy. When the ambient light intensity is insufficient, the energy storage module releases the stored electrical energy under the control of the energy management module to maintain the operation of the display system; When the system enters sleep mode, the energy storage module is controlled to shut down non-essential circuits, and wakes up through a preset period to detect the ambient light intensity and its own power. If the wake-up conditions are met, a signal is sent to the intelligent control module. Based on the received ambient light intensity data and the status of the energy storage module, the intelligent control module generates power distribution strategies and display parameter adjustment instructions, controls the power supply mode switching of the energy management module and the sleep and wake-up of the energy storage module, and jointly adjusts parameters such as the backlight brightness of the display system to adapt to changes in ambient light.

[0015] In a third aspect, an embodiment of the present application further provides an electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the steps of the smart large-screen power supply method based on ambient light capture as described in any one of the above items are implemented.

[0016] In a fourth aspect, an embodiment of the present application further provides a storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the smart large-screen power supply method based on ambient light capture as described in any one of the above items are implemented.

[0017] It can be seen from the above technical solutions that the present invention has the following advantages: In the intelligent large-screen power supply system based on ambient light capture provided by this application, it is first necessary to integrate a transparent photovoltaic film on the screen surface, or adopt high-performance light capture materials and optical structures to maximize the absorption of ambient light, lay out ambient light capture modules, energy management modules, energy storage modules, etc., and set a light intensity start threshold. The light intensity data is sent to the intelligent control module through the ambient light sensor. If the conditions are not met, the energy storage battery is used to generate electricity. When the light intensity meets the conditions, the intelligent management module sends a collection instruction, collects the ambient light received by the sensor through the laid light capture material, and generates electricity using the photovoltaic array. According to the intelligent control unit and the conversion circuit, the algorithm is used to optimize the output, and the electrical energy is reasonably distributed to the display system for power supply, or to manage the charging of the energy storage battery. During the power supply process of the display system, the ambient light sensor monitors the surrounding environment in real time, and chooses whether to enter the sleep state under the decision of the intelligent control module. If it does not enter the sleep state, it continues to dynamically adjust the parameters to power the system display. In the sleep state, it is necessary to shut down non-essential circuits and perform periodic wake-up detection, and continue to execute the next instruction according to the surrounding environment. This system achieves self-sufficiency and strong independence in the screen's energy supply, addressing the shortcomings of existing external devices that compromise display integrity and rely on a single source of energy. It improves display area utilization, adapts to more scenarios, and reduces ineffective energy consumption. By utilizing ambient light as an energy source, it reduces consumption of traditional fossil fuels, lowers carbon emissions, and meets the requirements of sustainable development. It also enhances off-grid battery life, thereby extending battery life and reducing replacement and maintenance costs. From "grid reliance" to "net energy output," this collaborative innovation systematically addresses the three major pain points of existing technologies: high energy consumption, low intelligence, and limited battery life. This achieves a leap in both technical indicators and commercial value, creating a highly efficient, energy-saving, and environmentally friendly display system.

[0018] The ambient light capture module of this application achieves efficient collection of ambient light through the synergistic effect of a transparent photovoltaic film unit, a light-capturing optical structure unit, and a spectrum-optimizing filter unit. The light-capturing optical structure enhances low-angle light capture efficiency, while the spectrum-optimizing filter matches the absorption peak of the photovoltaic material and blocks ineffective light. This significantly improves photoelectric conversion efficiency and reduces reliance on traditional power sources without affecting the display panel's transmittance and color reproduction.

[0019] This application's energy management module achieves refined energy control through light intensity detection and threshold determination, MPPT (maximum power point tracking) processing, and a dynamic power distribution mechanism. Based on ambient light intensity and the status of the energy storage module, the system automatically switches between "display power mode" and "energy storage charging mode," prioritizing display system operation and storing surplus power, avoiding energy waste and improving energy utilization and system power supply stability.

[0020] The energy storage module in this application reduces standby power consumption through a sleep-wake mechanism. It shuts down non-essential circuits during sleep mode and periodically checks the battery level upon wakeup, providing feedback to the intelligent control module to extend battery life. When ambient light is insufficient, the energy storage module quickly releases power to maintain display system operation, ensuring system endurance and reducing continuous reliance on external power sources.

[0021] This application's intelligent control module works in conjunction with the display system, dynamically adjusting backlight brightness and other parameters based on ambient light intensity, achieving adaptive matching of the display effect to the ambient light. This function not only reduces display system energy consumption but also enhances the user's visual experience, reducing visual fatigue in both bright and dim light environments. Furthermore, closed-loop intelligent control of the entire system is achieved through feedback from light intensity data and energy flow.

[0022] This application integrates an ambient light capture module into the display panel surface, using a transparent photovoltaic film bonded to an optical structure. This allows for seamless integration of the power supply system without changing the large-screen appearance or display functionality. Each module works together through standardized interfaces, combining modular scalability with system compatibility. This approach is applicable to a variety of smart large-screen scenarios, reducing hardware modification costs and improving installation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the intelligent large-screen power supply system based on ambient light capture provided in this application.

[0025] Figure 2 A flow chart of the smart large-screen power supply method based on ambient light capture provided in this application.

[0026] Figure 3 This is a schematic diagram of the structure of the electronic device provided in this application. DETAILED DESCRIPTION

[0027] The various embodiments of the present disclosure will be described in more detail below in the specific functional architecture of the intelligent large-screen power supply system based on ambient light capture. The present disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present disclosure to the specific embodiments disclosed herein, but rather the present disclosure should be understood to cover all adjustments, equivalents and / or alternatives that fall within the spirit and scope of the various embodiments of the present disclosure.

[0028] Hereinafter, the terms "include" or "may include" as used in various embodiments of the present disclosure indicate the presence of disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. In addition, as used in various embodiments of the present disclosure, the terms "include," "have," and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be understood as excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more features, numbers, steps, operations, elements, components, or combinations of the foregoing.

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1 The figure shows a structural diagram of a smart large-screen power supply system based on ambient light capture in a specific embodiment. The system includes: an ambient light capture module, an energy management module, an energy storage module and an intelligent control module.

[0031] The ambient light capture module, installed on the display panel of the smart large screen, is used to collect ambient light, convert it into electrical energy, and transmit it to the energy management module. This module, which collects ambient light and converts it into electrical energy, includes a photovoltaic conversion unit and an optical enhancement unit. The module is integrated with the display panel to achieve the integration of display functions and light energy collection.

[0032] In a specific embodiment, the ambient light capture module includes a transparent photovoltaic film unit, a light capture optical structure unit, and a spectrum optimization filter unit.

[0033] The transparent photovoltaic thin film unit covers the display panel surface of the smart large screen, which is used to collect ambient light and convert the ambient light into electrical energy of a preset voltage and transmit it to the energy management module.

[0034] For example, the transparent photovoltaic thin film unit includes a high-transmittance substrate (transmittance ≥ 85%) and a flexible photovoltaic thin film layer adhered to the inner side of the substrate.

[0035] The photovoltaic thin film layer is made of amorphous silicon / perovskite material, with a thickness of ≤50μm and a photoelectric conversion efficiency of ≥18%. It features a surface-integrated microcircuit matrix, with individual microcircuit units measuring 3-5mm². These cells are connected in series and parallel to form a photovoltaic array. The photovoltaic array is electrically connected to the energy management module via a flexible printed circuit board (FPC), with an output DC voltage range of 3-5V. The transparent photovoltaic thin film unit covers the display panel surface, and its FPC cable passes through the display frame to connect to the photovoltaic power processing unit of the energy management module.

[0036] The light-capturing optical structure unit is bonded to the transparent photovoltaic film unit to enhance the capture efficiency of low-angle light through optical coupling.

[0037] For example, the light-capturing optical structure unit includes a nano-micro prism array and a light waveguide plate arranged at the edge of the display panel. The nano-micro prism array is a three-dimensional prism structure with a height of 200-500nm and a period of 400-800nm. It guides side-incident light to the photovoltaic thin film layer through total internal reflection, improving the edge light collection efficiency by ≥30%. The light waveguide plate is made of PMMA material with a thickness of 1-3mm and is engraved with micron-scale light-scattering dots on the surface. It uniformly guides non-vertically incident light into the photovoltaic thin film area, with a light intensity uniformity of ≥90%. The light-capturing optical structure unit is physically bonded to the photovoltaic thin film layer and enhances low-angle light capture through optical coupling.

[0038] The spectral optimization filter unit is covered on top of the transparent photovoltaic thin film unit. It is used to block ultraviolet light and infrared light that are ineffective or harmful to photoelectric conversion by selectively transmitting a spectrum that matches the absorption peak of the photovoltaic material, thereby improving the photoelectric conversion efficiency of the transparent photovoltaic thin film unit without affecting the transmittance and color reproduction of the display panel.

[0039] For example, the spectral optimization filter unit is a narrow-band filter covering the photovoltaic thin film layer, which selectively transmits the 300-1100nm spectrum and blocks ultraviolet / infrared light, with a transmittance of ≥95% and a color reproduction degree ΔE≤1.5; it is bonded to the photovoltaic thin film layer through optical glue to form a composite optical structure.

[0040] The energy management module collects the current ambient light intensity and transmits it to the intelligent control module. After processing the received electrical energy, it dynamically distributes it to power the smart large-screen display system or charge the energy storage module according to the intelligent control module's instructions. It also feeds back light intensity and energy flow data to the intelligent control module. This module processes, distributes, and stores the electrical energy captured by ambient light. It comprises three functional units: detection, conversion, and distribution, enabling light intensity determination, energy optimization, and mode switching.

[0041] In a specific embodiment, the energy management module includes a light intensity detection and threshold determination unit, a photovoltaic power processing unit, and a power distribution and charging management unit.

[0042] The light intensity detection and threshold determination unit is connected to the intelligent control module, and the light intensity detection and threshold determination unit includes an ambient light sensor and a threshold comparison circuit; the ambient light sensor is arranged on the border of the smart large screen, and is used to collect the ambient light intensity signal and send it to the threshold comparison circuit; the threshold comparison circuit has a built-in editable threshold register, which compares the ambient light intensity signal with the preset threshold, and generates a high and low level signal indicating the light intensity status according to the comparison result and sends it to the intelligent control module.

[0043] Illustratively, the light intensity detection and threshold determination unit includes an ambient light sensor and a threshold comparison circuit.

[0044] The ambient light sensor is a dual-channel sensor (such as the AP3216) that integrates infrared and visible light detection. It has a detection range of 0-65535 lux and an accuracy of ±5%. It outputs raw light intensity data via the I²C bus. The threshold comparison circuit, with a built-in editable threshold register (default value 500 lux), compares the real-time light intensity with the threshold and outputs high and low level signals (3.3V / 0V) through the GPIO interface to indicate the light intensity status. The ambient light sensor is located in the display frame and connected to the main controller of the intelligent control module via the I²C bus. The threshold comparison result directly triggers the power distribution unit's mode switching.

[0045] The photovoltaic power processing unit is connected to the transparent photovoltaic thin film unit and is used to boost and perform MPPT processing on the electric energy and transmit it to the electric energy distribution and charging management unit.

[0046] For example, the photovoltaic power processing unit includes a DC / DC boost circuit and a maximum power point tracking (MPPT) module. The DC / DC boost circuit uses a synchronous rectifier chip (such as the MP2307) to boost a 3-5V input to a 5-24V adjustable output with a conversion efficiency of ≥94%. The MPPT module uses a perturbation-and-observe (P&O) algorithm, scanning the photovoltaic characteristic curve every 100ms to ensure a conversion efficiency of ≥98%. It receives parameter update instructions from the intelligent control module through the SPI interface.

[0047] Among them, the input end of the photovoltaic power processing unit is connected to the FPC cable of the transparent photovoltaic thin film unit, and the output end is divided into two paths: one is connected to the display system through the power distribution unit, and the other is connected to the charging interface of the energy storage module.

[0048] The power distribution and charging management unit is respectively connected to the photovoltaic power processing unit, energy storage module, intelligent control module and the display system of the smart large screen, and is used to execute switch switching actions according to the instructions of the intelligent control module to supply power to the display system or energy storage module of the smart large screen.

[0049] For example, the power distribution and charging management unit includes an intelligent switch and a battery charging module. The intelligent switch is a dual-MOS tube H-bridge circuit that controls the flow of power (displaying power supply, energy storage charging, or mixed mode) through PWM signals. An integrated current sensor (ACS712, accuracy ±1%) monitors the current in each branch in real time. The battery charging module supports three-stage charging (constant current 1.5A → constant voltage 4.2V → trickle charging) and has a built-in temperature sensor (accuracy ±2°C). When the battery temperature exceeds 45°C, the current is automatically reduced to 0.5A.

[0050] The power distribution and charging management unit is connected to the intelligent control module through a PWM control signal, the charging interface is electrically connected to the energy storage battery unit of the energy storage module, and the power supply interface is connected to the power input end of the display system.

[0051] The energy storage module, under the control of the energy management module, stores surplus energy. When light intensity is insufficient, it supplies energy to the energy management module to maintain display system operation. It also receives status detection instructions from the intelligent control module through the sleep / wake mechanism. This module, acting as an energy buffer, implements energy storage and sleep / wake control. It includes an energy storage battery unit and a sleep / wake control unit, ensuring continuous power supply even when light intensity is insufficient.

[0052] In a specific embodiment, the energy storage module includes an energy storage battery unit and a sleep / wake-up control unit.

[0053] The energy storage battery unit is connected to the power distribution and charging management unit, and has a built-in battery pack and battery management system for storing surplus power.

[0054] For example, the energy storage battery unit includes a battery pack and a battery management system (BMS); the battery pack is a 21700 type lithium-ion battery (4 series and 2 parallel structure), with a nominal voltage of 14.8V, a capacity of 6Ah, an energy density ≥700Wh / L, and supports a 10C discharge rate; the BMS monitors the single cell voltage (accuracy ±5mV) and temperature (±1℃) in real time, has overcharge / overdischarge / overcurrent protection functions, and communicates with the intelligent control module through a single-line UART.

[0055] The charging interface of the energy storage battery unit is connected to the power distribution unit of the energy management module, the discharge interface is connected to the system bus through the anti-reverse diode, and the BMS communication interface is connected to the sleep wake-up unit of the intelligent control module.

[0056] The sleep and wake-up control unit is connected to the energy storage battery unit and the intelligent control module respectively, and is used to perform periodic wake-up according to the sleep strategy sent by the intelligent control module; when in sleep mode, the energy storage module and built-in non-essential circuits are turned off to reduce power consumption; when awakened, the battery management system is activated to detect the power level of the battery pack and send the power level information to the intelligent control module.

[0057] For example, the sleep wake-up control unit includes an ultra-low power MCU (such as MSP430, with standby power consumption <1μA) and an RTC timer; it supports a configurable wake-up period of 1-60 minutes. When waking up, it triggers the BMS to briefly activate to detect the battery charge (SOC) and ambient light intensity. If the SOC is ≤20% or the light intensity is ≥ the threshold, a wake-up signal is sent to the intelligent control module.

[0058] The sleep and wake-up control unit is connected to the main controller of the intelligent control module through a single-line UART. The wake-up signal response time is less than 10ms, and the overall power consumption in sleep mode is ≤0.5mW.

[0059] The intelligent control module is used to receive the light intensity data transmitted by the energy management module, generate power distribution and display parameter adjustment strategies, and control the power supply mode switching of the energy management module and the dormancy and wake-up of the energy storage module.

[0060] In a specific embodiment, the intelligent control module serves as the system control center, realizing data processing, policy decision-making and cross-module collaboration, and includes a main controller unit and a display collaborative control unit.

[0061] The main controller unit is respectively connected to the light intensity detection and threshold judgment unit, the power distribution and charging management unit, and the sleep and wake-up control unit, and is used to generate a power distribution strategy based on the high and low level signals representing the light intensity status and the power information; if the high and low level signals of the light intensity status are high and the power information is higher than the preset SOC value, an instruction is sent to the power distribution and charging management unit to enable it to execute a switch switching action to supply power to the display system of the smart large screen; otherwise, an instruction is sent to the power distribution and charging management unit to enable it to execute a switch switching action to supply power to the energy storage module.

[0062] For example, the main controller unit uses an ARM architecture microprocessor (such as STM32H750XB, main frequency 480MHz), equipped with a real-time operating system (RT-Thread), and a task scheduling period of ≤1ms. It has a built-in adaptive control algorithm that generates an energy distribution strategy based on parameters such as light intensity, power consumption, and display power consumption. It supports 10 preset scene modes (such as outdoor strong light and indoor energy saving) and controls the energy management module registers through the SPI / I²C interface.

[0063] The main controller unit reads the ambient light sensor data through the I²C bus, configures the DC / DC chip parameters through the SPI interface, and controls the MOS tube switch of the power distribution unit through the PWM signal.

[0064] The display collaborative control unit is connected to the ambient light sensor and the display system of the smart large screen, and is used to obtain the ambient light intensity signal in real time. When the change of the ambient light intensity signal reaches a preset intensity difference, a control signal is sent to the display system to control the smart large screen to adjust the backlight brightness.

[0065] For example, the display collaborative control unit communicates with the display panel driver chip through the LVDS interface, supports 0-100% PWM backlight dimming (step 1%) and 30-120Hz refresh rate adjustment; when the light intensity changes by 100 lux, the backlight brightness of the smart large screen is automatically adjusted by 5%, with a response time of <200ms, and the display panel power is turned off in sleep mode.

[0066] The display collaborative control unit forms a closed-loop feedback with the display system, receives power consumption data from the display driver chip, and outputs dimming instructions through LVDS signals.

[0067] In this embodiment, through the collaboration of the transparent photovoltaic thin film unit, the light capture optical structure unit and the spectrum optimization filter unit, the ambient light is efficiently collected and the photoelectric conversion efficiency is improved without affecting the transmittance and color reproduction of the display panel. The light intensity detection, MPPT processing and dynamic power distribution mechanism of the energy management module are combined to realize fine-grained control of electric energy. The sleep and wake-up mechanism of the energy storage module is utilized to reduce power consumption and ensure battery life when the light intensity is insufficient. At the same time, the display system is linked through the intelligent control module to dynamically adjust the backlight brightness to adapt to changes in ambient light and enhance the visual experience. The system adopts a compact integrated design to achieve seamless embedding with the large screen, combining modular scalability and scene compatibility, ultimately achieving low power consumption, sustainable green power supply effect and optimized display performance.

[0068] like Figure 2 As shown, the following is an embodiment of the smart large-screen power supply method based on ambient light capture provided by an embodiment of the present disclosure. This method and the smart large-screen power supply system based on ambient light capture of the above-mentioned embodiments belong to the same inventive concept. For details not fully described in the embodiment of the smart large-screen power supply method based on ambient light capture, please refer to the above-mentioned embodiment of the smart large-screen power supply system based on ambient light capture.

[0069] A method for powering a smart large screen based on ambient light capture includes the following steps: S1: Ambient light is collected by an ambient light capture module provided on the intelligent large-screen display panel, and the ambient light is converted into electrical energy and then transmitted to the energy management module.

[0070] S2: The current ambient light intensity is collected through the energy management module and sent to the intelligent control module. At the same time, the received electric energy is boosted and the maximum power point is tracked.

[0071] S3: The energy management module dynamically distributes the processed electric energy into two power supply modes according to the instructions of the intelligent control module. The power supply modes include a display power supply mode and an energy storage charging mode. The display power supply mode prioritizes powering the display system of the smart large screen. The energy storage charging mode charges the energy storage module to store surplus electric energy.

[0072] S4: When the ambient light intensity is insufficient, the stored electrical energy is released through the energy storage module under the control of the energy management module to maintain the operation of the display system.

[0073] S5: When the system enters the dormant state, the energy storage module is controlled to turn off non-essential circuits, and wakes up through a preset period to detect the ambient light intensity and its own power. If the wake-up conditions are met, a signal is sent to the intelligent control module.

[0074] S6: Based on the received ambient light intensity data and the status of the energy storage module, the intelligent control module generates an energy distribution strategy and display parameter adjustment instructions, controls the power supply mode switching of the energy management module and the sleep and wake-up of the energy storage module, and jointly adjusts the backlight brightness and other parameters of the display system to adapt to the changes in ambient light.

[0075] The smart large-screen power supply method based on ambient light capture provided in this embodiment efficiently converts light energy into electrical energy through the ambient light capture module and transmits it to the energy management module. After boosting and maximum power point tracking processing, the electrical energy is dynamically allocated to the display power supply or energy storage charging mode based on the instructions of the intelligent control module, giving priority to ensuring the operation of the display system and storing surplus electrical energy. When the ambient light is insufficient, the energy storage module releases electrical energy to maintain operation. At the same time, the sleep and wake-up mechanism is used to reduce the standby power consumption of the energy storage module and extend the battery life. The intelligent control module also jointly adjusts the backlight brightness of the display system to adapt to changes in ambient light, realizing the efficient utilization of renewable energy, intelligent and refined management of electrical energy, improved system endurance and optimized display experience, and achieving a low-power, sustainable green power supply effect.

[0076] Figure 3 A schematic diagram of the hardware structure of an electronic device for implementing various embodiments of the present invention.

[0077] The smart large-screen power supply method based on ambient light capture provided in the embodiment of the present application can be applied to electronic devices. Those skilled in the art will understand that the electronic device structure involved in the embodiment of the present invention does not constitute a limitation on the electronic device, and the electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently. In the embodiment of the present invention, the electronic device includes but is not limited to a laptop computer, a desktop computer, a workbench, a personal digital assistant, a server, a blade server, a mainframe computer, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the embodiments of the present application described and / or required herein.

[0078] The electronic device may include a processor, an external memory interface, an internal memory, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, a wireless communication module, an audio module, a speaker, a microphone, a sensor module, a button, a camera, a display, and a SIM card interface, etc.

[0079] A processor may include one or more processing units, such as a central processing unit (CPU), an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU). Different processing units may be independent devices or integrated into one or more processors.

[0080] The processor can be the nerve center and command center of the electronic device. The controller can generate operation control signals based on the instruction opcode and timing signal to complete the control of instruction fetching and execution.

[0081] The processor may also include a memory for storing instructions and data. In some embodiments, the memory in the processor is a cache memory. This memory can store instructions or data that the processor has just used or is reusing. If the processor needs to use the instruction or data again, it can directly call it from the memory. This avoids repeated accesses, reduces processor latency, and thus improves system efficiency.

[0082] The external memory interface can be used to connect an external memory card, such as a MicroSD card, to expand the storage capacity of an electronic device. The external memory card communicates with the processor through the external memory interface, enabling data storage. For example, files such as music and videos can be stored on the external memory card.

[0083] Internal memory can be used to store computer-executable program code, which includes instructions. The processor executes the instructions stored in the internal memory to perform various functional applications and data processing of the electronic device. The internal memory can include a program storage area and a data storage area. The internal memory can include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, universal flash storage (UFS), etc.

[0084] The wireless communication function of an electronic device can be implemented through an antenna, a wireless communication module, a modem processor, and a baseband processor.

[0085] Wireless communication modules can provide wireless communication solutions for electronic devices, including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared technology (IR), etc.

[0086] Electronic devices can implement audio functions through audio modules, speakers, receivers, microphones, headphone jacks, and application processors.

[0087] Electronic devices can achieve shooting functions through ISP, camera, video codec, GPU, display and application processor.

[0088] Electronic devices can achieve display functions through GPU, display screen and application processor.

[0089] A GPU is a microprocessor for image processing that connects the display screen to the application processor. The GPU performs mathematical and geometric calculations for graphics rendering. A processor may include one or more GPUs, which execute program instructions to generate or modify display information.

[0090] The display screen is used to display images, videos, etc. The display screen includes a display panel.

[0091] The above-mentioned electronic device implements the smart large-screen power supply method based on ambient light capture of the present application. The ambient light capture module set on the smart large-screen display panel collects ambient light and converts it into electrical energy and transmits it to the energy management module. The energy management module collects light intensity, boosts the electrical energy and performs maximum power point tracking processing, and then dynamically allocates it to display power supply or energy storage charging mode according to the instructions of the intelligent control module. The energy storage module releases electrical energy to maintain operation when the light intensity is insufficient and turns off non-essential circuits when in sleep mode, and wakes up the detection state through a preset cycle. The intelligent control module generates strategy instructions based on light intensity data and energy storage status, controls power supply mode switching and sleep wake-up, and jointly adjusts the display system backlight brightness to adapt to ambient light changes, thereby achieving the beneficial effects of efficiently utilizing renewable energy, realizing intelligent and refined management of electrical energy, improving system endurance, optimizing display experience, and achieving low-power sustainable green power supply.

[0092] The storage medium provided in this application stores a program product that can implement a smart large-screen power supply method based on ambient light capture.

[0093] In some possible embodiments, the smart large-screen power supply method based on ambient light capture disclosed herein can be implemented in the form of a program product, which includes program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the steps described in the above "Exemplary Method" section of this specification according to various exemplary embodiments of the present disclosure.

[0094] The storage medium of the present disclosure can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but not limited to, a system, device or component of electricity, magnetism, light, electromagnetic, infrared, or semiconductor, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0095] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An intelligent large-screen power supply system based on ambient light capture, characterized in that: include: Ambient light capture module, energy management module, energy storage module and intelligent control module; The ambient light capture module is set on the display panel of the smart large screen and is used to collect ambient light, convert the ambient light into electrical energy, and transmit it to the energy management module; The energy management module is used to collect the current ambient light intensity and send it to the intelligent control module. After processing the received electric energy, it is dynamically distributed to the display system of the smart large screen or to charge the energy storage module according to the instructions of the intelligent control module, and the light intensity and energy flow data are fed back to the intelligent control module. The energy storage module is used to store surplus electric energy under the control of the energy management module. When the light intensity is insufficient, it outputs electric energy to the energy management module to maintain the operation of the display system, and receives status detection instructions from the intelligent control module through the sleep wake-up mechanism; The intelligent control module is used to receive the light intensity data transmitted by the energy management module, generate power distribution and display parameter adjustment strategies, and control the power supply mode switching of the energy management module and the dormancy and wake-up of the energy storage module.

2. The intelligent large-screen power supply system based on ambient light capture according to claim 1 is characterized in that: The ambient light capture module includes a transparent photovoltaic film unit and a light capture optical structure unit; The transparent photovoltaic thin film unit covers the display panel surface of the smart screen, which is used to collect ambient light and convert it into electrical energy of preset voltage and transmit it to the energy management module; The light-capturing optical structure unit is bonded to the transparent photovoltaic film unit to enhance the capture efficiency of low-angle light through optical coupling.

3. The intelligent large-screen power supply system based on ambient light capture according to claim 2 is characterized in that: The energy management module includes a light intensity detection and threshold determination unit, a photovoltaic power processing unit, and a power distribution and charging management unit; The light intensity detection and threshold determination unit is connected to the intelligent control module, and the light intensity detection and threshold determination unit includes an ambient light sensor and a threshold comparison circuit; The ambient light sensor is located on the border of the smart screen and is used to collect the ambient light intensity signal and send it to the threshold comparison circuit. The threshold comparison circuit has a built-in editable threshold register, which compares the ambient light intensity signal with the preset threshold. Based on the comparison result, it generates a high and low level signal indicating the light intensity status and sends it to the intelligent control module. The photovoltaic power processing unit is connected to the transparent photovoltaic thin film unit and is used to boost and perform MPPT processing on the electric energy and transmit it to the power distribution and charging management unit; The power distribution and charging management unit is respectively connected to the photovoltaic power processing unit, energy storage module, intelligent control module and the display system of the smart large screen, and is used to execute switch switching actions according to the instructions of the intelligent control module to supply power to the display system or energy storage module of the smart large screen.

4. The intelligent large-screen power supply system based on ambient light capture according to claim 3 is characterized in that: The energy storage module includes an energy storage battery unit and a sleep / wake-up control unit; The energy storage battery unit is connected to the power distribution and charging management unit, and has a built-in battery pack and battery management system for storing surplus power; The sleep and wake-up control unit is connected to the energy storage battery unit and the intelligent control module respectively, and is used to perform periodic wake-up according to the sleep strategy sent by the intelligent control module; when in sleep mode, the energy storage module and built-in non-essential circuits are turned off to reduce power consumption; when awakened, the battery management system is activated to detect the power level of the battery pack and send the power level information to the intelligent control module.

5. The intelligent large-screen power supply system based on ambient light capture according to claim 4 is characterized in that: The intelligent control module includes a main controller unit; The main controller unit is connected to the light intensity detection and threshold determination unit, the power distribution and charging management unit, and the sleep and wake-up control unit respectively, and is used to generate a power distribution strategy based on the high and low level signals indicating the light intensity status and the power information; If the high and low level signals of the light intensity state are high and the power information is higher than the preset SOC value, an instruction is sent to the power distribution and charging management unit to enable it to execute a switch switching action to supply power to the display system of the smart large screen; otherwise, an instruction is sent to the power distribution and charging management unit to enable it to execute a switch switching action to supply power to the energy storage module.

6. The intelligent large-screen power supply system based on ambient light capture according to claim 5 is characterized in that: The intelligent control module also includes a display coordination control unit; The display collaborative control unit is connected to the ambient light sensor and the display system of the smart large screen, and is used to obtain the ambient light intensity signal in real time. When the change of the ambient light intensity signal reaches a preset intensity difference, a control signal is sent to the display system to control the smart large screen to adjust the backlight brightness.

7. The intelligent large-screen power supply system based on ambient light capture according to claim 2 is characterized in that: The ambient light capture module further includes a spectrum optimization filter unit; The spectral optimization filter unit is covered on top of the transparent photovoltaic thin film unit. It is used to block ultraviolet light and infrared light that are ineffective or harmful to photoelectric conversion by selectively transmitting a spectrum that matches the absorption peak of the photovoltaic material, thereby improving the photoelectric conversion efficiency of the transparent photovoltaic thin film unit without affecting the transmittance and color reproduction of the display panel.

8. A method for powering a smart large screen based on ambient light capture, characterized in that: The method adopts the intelligent large-screen power supply system based on ambient light capture as described in any one of claims 1 to 7; The method comprises: Ambient light is collected by an ambient light capture module provided on the intelligent large-screen display panel, and the ambient light is converted into electrical energy and then transmitted to the energy management module; The energy management module collects the current ambient light intensity and sends it to the intelligent control module, while also performing voltage boosting and maximum power point tracking on the received electrical energy. The energy management module dynamically distributes the processed electric energy into two power supply modes according to the instructions of the intelligent control module. The power supply modes include a display power supply mode and an energy storage charging mode. The display power supply mode prioritizes powering the display system of the smart large screen. The energy storage charging mode charges the energy storage module to store surplus electric energy. When the ambient light intensity is insufficient, the energy storage module releases the stored electrical energy under the control of the energy management module to maintain the operation of the display system; When the system enters sleep mode, the energy storage module is controlled to shut down non-essential circuits, and wakes up through a preset period to detect the ambient light intensity and its own power. If the wake-up conditions are met, a signal is sent to the intelligent control module. Based on the received ambient light intensity data and the status of the energy storage module, the intelligent control module generates power distribution strategies and display parameter adjustment instructions, controls the power supply mode switching of the energy management module and the sleep and wake-up of the energy storage module, and jointly adjusts parameters such as the backlight brightness of the display system to adapt to changes in ambient light.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the steps of the smart large-screen power supply method based on ambient light capture as described in claim 7 are implemented.

10. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, the steps of the smart large-screen power supply method based on ambient light capture as claimed in claim 7 are implemented.

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