LED screen based on environment dynamic perception adjustment
By integrating multiple sensors and dynamic perception models into the LED screen, real-time perception and adjustment of the environment and users are achieved, and the problems of poor display effect and high maintenance costs of existing LED screens under different lighting environments and user needs are solved, improving user experience and equipment reliability.
Patent Information
- Application Number
- CN202510363561.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-06-27
AI Technical Summary
The existing LED screens lack the ability to perceive and adapt to the surrounding environment, resulting in poor display effects in different lighting environments, poor user experience, and the inability to adjust the display effects in real time to adapt to user distance and viewing angle, increasing maintenance costs and equipment downtime.
Design an LED screen based on environmental dynamic perception adjustment, integrating a photosensitive sensor, infrared camera, temperature and humidity sensor and TOF sensor, and through the perception processing chip and dynamic perception model, it monitors ambient light intensity, color temperature, temperature and humidity, user distance and gesture actions in real time, and performs brightness, color temperature adjustment and interactive gesture response.
It realizes adaptive adjustment of LED screens under different environments and user needs, improves display effect and user experience, reduces power consumption and maintenance costs, and extends the service life of the equipment.
Smart Images
Figure CN120220544A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of LED display, and particularly to an LED screen based on ambient dynamic perception adjustment. Background Art
[0002] At present, with the booming development of LED screen technology, many limitations have emerged in traditional products. Most existing LED screens only display in a fixed mode according to a preset program, lacking the ability to perceive and adapt to the surrounding environment. For example, regardless of the intensity of ambient light, they present a constant brightness, which not only causes energy waste and visual discomfort in strong light, but also makes it difficult to clearly display information in low-light environments. At the same time, traditional advertising screens cannot adjust the display effect in real time according to the user's distance and viewing angle, resulting in low information transmission efficiency and poor user experience. In addition, during the operation of advertising screens, due to the influence of environmental factors such as temperature changes and air pollution, problems such as a decline in display quality and equipment failures are likely to occur, but they cannot actively monitor and prevent them, increasing the maintenance cost and equipment downtime.
[0003] In view of these deficiencies, there is an urgent need for an LED advertising screen that can intelligently perceive the environment and dynamically adjust, so as to improve the display effect, energy utilization efficiency and equipment reliability, and meet the growing advertising display needs. Summary of the Invention
[0004] In view of the above situation, to overcome the defects of the prior art, the purpose of the present invention is to provide an LED screen based on ambient dynamic perception adjustment. The above technical purpose is achieved through the following technical solutions: An LED screen based on ambient dynamic perception adjustment, comprising: An LED advertising screen, wherein the light-emitting panel in the LED advertising screen is of a modular structure; An adaptive perception module, the adaptive perception module includes a photosensitive sensor, an infrared camera, and a temperature and humidity sensor. The photosensitive sensor is arranged at the four corners of the border of the LED advertising screen, the infrared camera is arranged at the center position on the front side of the upper border of the LED advertising screen, and the temperature and humidity sensor is arranged near the position of the back heat dissipation holes of the LED advertising screen; A perception processing chip, the photosensitive sensor, the infrared camera, and the temperature and humidity sensor are all connected to the perception processing chip. The infrared camera extracts the user's line-of-sight focus through face tracking, and a dynamic perception model is equipped in the perception processing chip.
[0005] Further, the adaptive perception module further includes a TOF sensor, and the TOF sensor is embedded at both sides of the border of the LED advertising screen, with two groups arranged on each side to form a cross ranging network.
[0006] Further, the dynamic perception model includes an input layer, a processing layer, and an output layer. The input layer inputs the sensor data collected by the adaptive perception module into the model. The processing layer performs normalization, image enhancement, and time series alignment processing on the sensor data. The output part of the output layer compensates and adjusts the brightness and color temperature of the LED advertising screen and reacts to interactive gestures.
[0007] Further, a dust sensor is provided inside the LED advertising screen. The dust sensor is used to monitor the concentration of particulate matter in the air and trigger a screen cleaning prompt.
[0008] Further, a vibration sensor is provided inside the LED advertising screen. The vibration sensor is used to detect the installation stability of the screen and prevent physical impact damage.
[0009] The present invention has the following beneficial effects: ① The present invention integrates a variety of sensors such as a photosensitive sensor, an infrared camera, a temperature and humidity sensor, and a TOF sensor, and can real-time monitor multi-dimensional information such as ambient light intensity, color temperature, temperature and humidity, user distance, and gesture actions, providing comprehensive data support for precise adjustment; ② The dynamic perception model equipped with the present invention includes an input layer, a processing layer, and an output layer, which can perform processing such as normalization, image enhancement, and time series alignment on sensor data, and through convolutional neural network and time series network analysis, realize the compensation adjustment of the brightness and color temperature of the LED advertising screen and the reaction to interactive gestures, adapting to different environments and user needs; ③ The present invention is internally provided with a dust sensor and a vibration sensor, which can monitor the concentration of particulate matter in the air and trigger a screen cleaning prompt, detect the installation stability of the screen to prevent physical impact damage, and extend the service life of the device; ④ The light-emitting panel of the LED advertising screen of the present invention adopts a modular structure, and the panels at different positions can independently adjust parameters such as brightness and color temperature. Compared with the traditional whole-screen adjustment method, the power consumption can be significantly reduced; In summary, the present invention can perform adaptive adjustment according to the light, temperature and humidity of the environment where the advertising screen is located, and the user viewing situation, ensure clear display of image information in various lighting environments, provide user interaction functions, enhance the user experience, and improve the attractiveness of the advertising screen. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, but do not constitute an improper limitation to the present invention. In the drawings: Figure 1 is a schematic diagram of the model of the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0011] Regarding the foregoing and other technical contents, features and effects of the present invention, they will be clearly presented in the following detailed description of the embodiments with reference to the accompanying drawings. Figure 1 In the following detailed description of the embodiments, the structural contents mentioned in the following embodiments are all referenced to the drawings of the specification.
[0012] The exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
[0013] An LED screen based on environmental dynamic perception adjustment, comprising: An LED advertising screen, the light-emitting panel in the LED advertising screen is a modular structure, that is, during the display process of the LED advertising screen, the panels at different positions can independently adjust their brightness, color temperature and other values to achieve the function of zoning adjustment. Compared with the whole-screen adjustment, the power consumption of the LED advertising screen is greatly reduced.
[0014] An adaptive perception module, the adaptive perception module includes a photosensitive sensor, an infrared camera, and a temperature and humidity sensor, wherein: The photosensitive sensor is arranged at the four corners of the border of the LED advertising screen, and the spectral range is set to 380-1050nm. This band can cover visible light + near infrared, and is used to measure the ambient light intensity and color temperature in real time, providing basic data for brightness and color temperature adjustment; The infrared camera is arranged at the center position on the front side of the upper border of the LED advertising screen, with a resolution of 640×480@60fps and a capture frame rate. The infrared camera is used to capture user gesture actions, facial features and distance information. The temperature and humidity sensor is arranged near the back heat dissipation holes of the LED advertising screen. The temperature detection range of the temperature and humidity sensor is -40~85°C, and the humidity detection accuracy is ±2% RH. It is used to monitor the ambient temperature and humidity values where the LED advertising screen body is located, and correct the error caused by the temperature drift of the photosensitive sensor.
[0015] A perception processing chip, the photosensitive sensor, the infrared camera, and the temperature and humidity sensor are all connected to the perception processing chip. The infrared camera extracts the user's line-of-sight focus through face tracking, and a dynamic perception model is equipped in the perception processing chip.
[0016] Further, the adaptive perception module further includes a TOF sensor. The TOF sensor is embedded on both sides of the border of the LED advertising screen. Two sets are arranged on each side to form a cross ranging network, and its ranging range is 0.1 - 5m. This range is the effective distance for triggering the LED adaptive adjustment strategy and the user interaction strategy. The TOF sensor is used to detect the real-time distance between the user and the LED advertising screen, so as to trigger the brightness adjustment, color temperature adjustment and user interaction strategy of the adaptive perception module. In this embodiment, when the TOF sensor detects that the user stays 1.5m in front of the LED advertising screen and makes a moving gesture to the infrared camera, the LED advertising screen automatically switches the advertising content.
[0017] Further, a dust sensor is arranged inside the LED advertising screen. The dust sensor is used to monitor the concentration of particulate matter in the air and trigger a screen cleaning reminder.
[0018] Further, a vibration sensor is arranged inside the LED advertising screen. The vibration sensor is used to detect the installation stability of the screen and prevent physical impact damage.
[0019] Before using the dynamic perception model, the model needs to be trained. The training data will be obtained from two channels. One part is to use Blender to generate virtual scene data under different illuminations and distances, and the other part needs to be collected in reality. By collecting sensor data in outdoor / indoor scenes, a real dataset is formed. A loss function is designed through the virtual scene data and the real dataset, including brightness correction, color temperature correction, and gesture recognition correction.
[0020] The entire dynamic perception model includes an input layer, a processing layer, and an output layer, where: The input layer inputs the sensor data collected by the adaptive perception module into the model, including environmental perception data, image data, and time series data. The environmental perception data involves numerical data such as light intensity (lux), color temperature (K), temperature and humidity, and user distance (cm). The image data involves the grayscale images captured by the infrared camera and the TOF depth map. The time series data involves the gesture action sequence of the user.
[0021] The processing layer performs normalization, image enhancement, and time series alignment processing on the sensor data. Data normalization can map numerical values such as light intensity and color temperature to the [0,1] interval. Subsequently, histogram equalization is performed on the images captured by the infrared camera to enhance the clarity of the gesture contour, and the sensor data with different sampling rates is aligned through an interpolation algorithm. The infrared camera images are processed through a convolutional neural network to extract the gesture contour and the coordinates of the line of sight focus. The user's movement trajectory, such as the continuity of approaching or moving away from the screen, is analyzed through a time series network.
[0022] The output part of the output layer compensates and adjusts the brightness and color temperature of the LED advertising screen and reacts to interactive gestures. After the model is inferred in the processing layer, instruction encapsulation and distribution will be carried out. By outputting an instruction packet in JSON format, the per-region brightness value, RGB gain coefficient, gesture type, and line-of-sight coordinates calculated by the model will be output. The line-of-sight coordinates determine the display partition position to be adjusted, the per-region brightness value can determine the brightness correction adjustment part, the RGB gain coefficient is used to adjust the color temperature, and the gesture type is used to react to user gestures.
[0023] Suppose at noon in summer, a pedestrian approaches from 5 meters away from the LED advertising screen to 1 meter and makes a "waving" gesture: Step 1: The light sensor detects strong light irradiating the display screen and triggers a dynamic perception task; Step 2: The model synthesizes the input data and makes a decision output: Per-region brightness: The central region is increased to 2200 nit, and the edge region remains at 1800 nit. Color gain: R = 1.3 (compensating for the blue light attenuation in sunlight), B = 0.8 (reducing cold-tone glare). Identify the "waving" gesture and trigger an advertisement content jump.
[0024] Step 3: The instruction is transmitted to each LED driver IC.
[0025] The above is a further detailed description of the present invention in combination with specific implementation manners. It cannot be determined that the specific implementation of the present invention is only limited thereto; for those skilled in the art of the present invention and related technical fields, based on the premise of the technical solution idea of the present invention, the expansions, operation methods, and data replacements should all fall within the protection scope of the present invention.
Claims
1. An LED screen based on dynamic environmental perception and adjustment, characterized in that: include: LED advertising screen, wherein the light-emitting panel in the LED advertising screen is a modular structure; An adaptive sensing module, the adaptive sensing module includes a photosensitive sensor, an infrared camera, and a temperature and humidity sensor. The photosensitive sensor is arranged at the four corners of the frame of the LED advertising screen, the infrared camera is arranged at the front center of the upper frame of the LED advertising screen, and the temperature and humidity sensor is arranged near the heat dissipation hole on the back of the LED advertising screen; The perception processing chip, the photosensor, infrared camera, and temperature and humidity sensors are all connected to the perception processing chip. The infrared camera extracts the user's line of sight through facial tracking. The perception processing chip is equipped with a dynamic perception model.
2. The LED screen based on dynamic environmental perception and adjustment according to claim 1, characterized in that: The adaptive sensing module also includes a TOF sensor, which is embedded in both sides of the frame of the LED advertising screen. Two groups of TOF sensors are arranged on each side to form a cross-ranging network.
3. The LED screen based on dynamic environmental perception and adjustment according to claim 2, characterized in that: The dynamic perception model includes an input layer, a processing layer, and an output layer. The input layer inputs the sensor data collected by the adaptive perception module into the model. The processing layer normalizes, enhances the image, and performs timing alignment on the sensor data. The output part of the output layer compensates and adjusts the brightness and color temperature of the LED advertising screen and responds to interactive gestures.
4. The LED screen based on dynamic environmental perception and adjustment according to claim 3, characterized in that: A dust sensor is provided inside the LED advertising screen, and the dust sensor is used to monitor the concentration of particulate matter in the air and trigger a screen cleaning prompt.
5. The LED screen based on dynamic environmental perception and adjustment according to claim 3, characterized in that: A vibration sensor is provided inside the LED advertising screen, and the vibration sensor is used to detect the installation stability of the screen and prevent physical impact damage.