593 results about "Led array" patented technology

The invention discloses an LED street lamp multi-scene intelligent regulation and control method and system for road illumination. The method comprises the steps that environment sensing parameters and equipment state parameters are collected; constructing a dynamic light scattering model according to the environment perception parameters and the equipment state parameters, predicting effective illumination distribution from the LED light source to the road surface in the current environment, and generating an LED spectrum compensation strategy; the real value of effective illumination distribution from the LED light source to the road surface is monitored in real time, the deviation between the real value and a predicted value is analyzed, and if the deviation exceeds a preset threshold value, the light attenuation coefficient, the road surface equivalent reflectivity and the LED working temperature are calculated in a reverse iteration mode according to the deviation so as to update the LED spectrum compensation strategy; and generating a PWM (Pulse Width Modulation) driving signal according to the updated LED spectrum compensation strategy, controlling the duty ratio of each sub light source in the LED array, and dynamically adjusting the LED spectrum distribution. According to the method, the LED operation parameters are dynamically regulated and controlled through the deviation between the true value and the predicted value of the effective illumination distribution, the light attenuation is compensated in real time, the spectral efficiency is optimized, and the LED power consumption is reduced on the premise of ensuring the illumination quality.

The invention provides a cylindrical battery pole piece coating uniformity detection method based on machine vision, and relates to the technical field of machine vision, and the method comprises the steps: obtaining a multi-angle image, and carrying out the cylindrical surface expansion; carrying out polar coordinate gradient continuity analysis on the annular expanded image, extracting continuity characteristics of a seam, and adaptively adjusting light emitting parameters of the LED array to obtain an optimized image; coating edge contours, surface texture directivity and density distribution characteristics are extracted in a polar coordinate domain and a Cartesian coordinate domain, and a coating uniformity evaluation standard is established; and constructing a hierarchical feature fusion network comprising a polar coordinate attention module and a space attention module, carrying out adaptive weighted fusion on the annular features and the axial features, comparing a fusion result with theoretical coating uniformity distribution calculated based on coating process parameters, and outputting a detection result. According to the method, the accuracy and interpretability of coating uniformity detection of the cylindrical battery pole piece are improved, and a theoretical basis is provided for process optimization.

The invention discloses an intelligent identification system for puffed corn, and relates to the technical field of computer vision and image processing, and the system comprises an image collection module which integrates multispectral imaging and a near-infrared sensor and is used for obtaining surface morphology, internal structure and moisture content data of puffed corn; an environment light intensity sensor and an LED array are arranged in the self-adaptive optical compensation module, the wavelength and illumination intensity of a light source are adjusted in a closed-loop feedback mode, and color feature deviation caused by workshop environment light changes is compensated; the image processing module is used for deploying a lightweight hybrid neural network model and is used for adhesive particle segmentation and defect detection; the real-time sorting control module is used for driving a three-axis mechanical arm and a pneumatic spray valve according to an identification result so as to realize defective product rejection and grade subpackaging; and the digital twinning optimization platform is used for outputting a process adjustment suggestion to the production line PLC. According to the invention, through the holographic sensing network, the hybrid intelligent decision and the cross-domain cooperative control, the problems of inaccurate reading, unquick judgment and inaccurate control in puffed corn identification are solved.

The invention discloses a dual-light registration and infrared camera calibration method, which comprises the following steps of: synchronously acquiring a visible light image and an infrared image, and acquiring multiple groups of dual-light image pairs under different distances within a preset object distance range; cross-modal feature key points are extracted, a matching corresponding relation is established, registration parameters under object distances are generated, and a dynamic compensation database is constructed; lead arrays are embedded in a plurality of horizontal edges and a plurality of vertical edges of a traditional checkerboard calibration plate, and leads are driven to generate uniform heat radiation; checkerboard corner coordinates are accurately extracted based on developed heating side lines in the infrared image, a real-time target detection model software deep learning model is utilized to construct a multi-scale feature fusion network, and combined geometric fitting is carried out on checkerboards in the bimodal image; and carrying out adaptive region segmentation on the fitted checkerboard, and reconstructing a black and white alternate state of the visible light checkerboard. The technical problem of registration failure in a complex environment can be solved, and the stability and repeatability of calibration are improved.

The invention relates to the technical field of dust concentration detection, in particular to an online detection method and system based on limited space dust concentration, and the method comprises the following steps: based on each detection area, analyzing scattered light signals, classifying the scattered light signals into different particle size categories according to angles and coordinates, and performing signal compensation in combination with real-time humidity; adjusting the irradiation direction of the LED array to optimize illumination distribution, comparing light intensity differences, dynamically scheduling uniform illumination areas, subdividing detection points, analyzing layering signals, and obtaining particle size layering concentration data. According to the invention, distribution mapping with distinct particle size category difference is realized by using a spatial multi-dimensional layered structure, signal adaptability is improved by fusing a humidity dynamic response mechanism, particle size, humidity and illumination multi-source data are dynamically fused, local environment interference is eliminated through layering and compensation linkage, and the accuracy of the system is improved. The continuity of data expression and the response speed of concentration monitoring are improved, and continuous dynamic tracking of the dust state in a limited space complex environment is supported.

The invention provides a production equipment state real-time analysis method and system based on edge calculation, and relates to the technical field of information, and the method comprises the steps: analyzing the dynamic change trend of a light beam central axis according to the offset trajectory of the light beam central axis, and determining the spatial distribution characteristics of the light beam axis through the dynamic change trend of the light beam central axis in combination with an LED array arrangement SIC mode; if the adjustment angle in the lens calibration instruction set exceeds a preset angle threshold, dynamically adjusting the position of the optical axis of the lens according to the offset amplitude and direction of the optical axis, compensating the offset of the light beam axis in real time, and obtaining a calibrated optical axis parameter; according to the color temperature distribution uniformity, determining a target lens position through a lens position adjustment attribute; according to the calibrated optical axis parameters and color temperature distribution uniformity, stable light beam center axis distribution is determined, spectrum consistency is determined, and a performance evaluation data set is obtained through comprehensive evaluation.

The invention relates to the technical field of corrugated board detection, and particularly discloses a corrugated board stacking defect detection method and system based on machine vision, and the method comprises the steps: carrying out the time-sharing triggering of a side annular LED array light source and a top vertical diffusion light source of a stacking transmission line, and enabling an industrial CCD camera to synchronously obtain reflected light, transmission light and visible light channel images; fusing image features to generate a defect response map; eliminating corrugated texture interference through adaptive Gaussian filtering; dynamically adjusting high and low thresholds based on the maximum value proportion of the defect response map in combination with illumination; segmenting and merging candidate defect areas and calculating initial stacking defect indexes; and eliminating illumination artifacts in combination with the structural similarity index to finally obtain a real defect index. According to the method, the stacking defect detection accuracy is effectively improved, the missed and false alarm rate is reduced, the detection requirements of illumination fluctuation and bent edge washboard defects can be met, and the production quality control requirements of corrugated boards are met.

The invention discloses a self-adaptive underwater single-pixel imaging technology based on Fourier modulation, belongs to the technical field of computational optical imaging, is used for ocean detection and improvement of ocean surveillance and defense efficiency, and adopts a self-designed LED array to replace an expensive DMD and a four-quadrant detector composed of common photodiodes to replace an expensive barrel detector. And high-speed illumination and parallel acceptance are realized while the cost is greatly reduced. The technical route comprises a high-speed underwater single-pixel imaging device, a high-speed Fourier single-pixel imaging algorithm and an adaptive sampling strategy based on Fourier single-pixel imaging. The high-speed single-pixel imaging device comprises a self-designed LED array light modulation module, a converging lens module and a receiving module. The high-speed Fourier single-pixel imaging algorithm comprises a binarization algorithm based on error diffusion and an algorithm based on adaptive compressed sensing. According to the innovative self-adaptive sampling strategy based on Fourier single-pixel imaging, a specific sampling path is generated by fusing circular sampling and random sampling according to the characteristics of an image in a Fourier spectrum, so that Fourier coefficients which have great influence on image quality are acquired as much as possible under water with low sampling rate and high turbidity, and the image quality is improved. Therefore, the high-efficiency imaging of the underwater target object is realized, and the imaging speed and quality are both considered.

The invention provides an automatic illumination adjusting method and system based on seed and seedling cultivation, and relates to the technical field of illumination control and intelligent agriculture, the method comprises the following steps: firstly, collecting seedling chlorophyll fluorescence parameters to construct a light stress index, and accurately identifying a light inhibition risk; then calculating a physiologically permissible light intensity threshold adaptive to the dark response capability of the plant by combining the environment temperature and the CO2 concentration; positioning a shielded weak light area by using three-dimensional point cloud voxelization and a ray tracing technology, and calculating a shadow compensation gain coefficient; and finally, generating a control matrix in combination with a dynamic left-rotation light strategy, and driving an independent addressing LED array and a variable-angle lens to execute local precise light supplement and light vector adjustment. Through physiological feedback and spatial light field reconstruction, the problem that traditional illumination control neglects individual tolerance difference and canopy shielding is solved, photooxidation damage is effectively prevented, and the growth uniformity and the light energy utilization rate of seedling groups are remarkably improved.

The invention discloses a bridge underwater safety detection method based on opto-acoustic dual modes, and relates to the technical field of underwater engineering detection, and the method comprises the following steps: obtaining water area particle size distribution and concentration data by using a multi-frequency acoustic suspended sediment concentration profiler, establishing an environmental parameter database, configuring a shipborne detection device according to the initial environmental parameter database, and detecting the underwater safety of a bridge according to the shipborne detection device. The method comprises the following steps: setting a three-axis stabilized platform carrying a polarization imaging camera and a multispectral LED array, deploying a multi-beam detection module and ADCP equipment, and establishing a unified coordinate system; multi-angle original intensity images are collected through a polarized optical imaging module, and multi-exposure fusion is carried out after processing is carried out through a mutual information minimization algorithm. An optical image and an acoustic point cloud are deeply fused by adopting a graph neural network, the detection precision is improved through dynamic weight optimization of an attention mechanism and a space-time registration algorithm, a multi-index fusion model is constructed based on fuzzy logic and a D-S evidence theory for adaptive early warning decision, upgrading from single-parameter alarm to multi-dimensional decision is realized, and the false alarm rate is reduced.

The utility model relates to the field of Micro-LED display, in particular to a vertically stacked three-color full-color Micro-LED structure, which is characterized in that the vertically stacked three-color full-color Micro-LED structure comprises a driving circuit, a first chip, a second chip and a third chip are sequentially arranged on one side of the length direction of the driving circuit from top to bottom, and the first chip, the second chip and the third chip are arranged on the other side of the length direction of the driving circuit. The length of the first chip is larger than that of the second chip, and the length of the second chip is larger than that of the third chip, (1) the space occupation caused by transverse tiling in the Micro-LED array is reduced, the pixel density of a display screen is remarkably improved, the area of full-color pixels is reduced, the overall size of the screen is reduced, and the size of the display screen is reduced; according to the invention, the structure is simple, the structure is compact, the structure is simple, the structure is especially suitable for high-precision, high-resolution and miniaturized display equipment, the influence of high-energy photons of blue light or green light on the red light chip is effectively reduced, each chip pole can be directly and vertically connected to the driving circuit at the bottom, the occupied space is reduced, and the problems of complicated pole extension and connection in a traditional stacked structure are avoided.

The invention belongs to the technical field of wastewater treatment, and particularly relates to a device and a method for quickly removing refractory organic pollutants by utilizing photoelectric synergy and modified foam zero-valent iron to synchronously catalyze ozone. According to the technical scheme, the device comprises a shell, the interior of the shell is divided into an anode chamber and a cathode chamber through a proton exchange membrane, the shell is provided with a water inlet communicated with the anode chamber and a water outlet communicated with the cathode chamber, and the water inlet is communicated with the anode chamber and the water outlet is communicated with the cathode chamber. An anode material and an LED array are arranged in the anode chamber, a cathode material is arranged in the cathode chamber, and the cathode chamber is further filled with a modified foam zero-valent iron catalyst. The invention provides a device and a method for rapidly removing refractory organic pollutants by utilizing photoelectric synergy and modified foam zero-valent iron to synchronously catalyze ozone.

A light emitting diode (LED) comprises: an n-doped portion; a p-doped portion; and a light emitting region located between the n-doped portion and the p-doped portion. The light emitting region comprises: a light-emitting layer which emits light at a peak wavelength between 400 and 599 nm under electrical bias thereacross; a III-nitride layer located on the light-emitting layer; and a III-nitride barrier layer located on the III-nitride layer. The light emitting diode comprises a porous region of III-nitride material. An LED array and a method of manufacturing an LED with a peak emission wavelength between 400 nm and 599 nm under electrical bias are also provided.

An apparatus includes a light-emitting diode (LED) driver circuit, one or more LEDs of an LED array, and an electronic switching circuit. The LED driver circuit is configured to generate an electric current. The one or more LEDs are electrically connected to the LED driver circuit. The electronic switching circuit is electrically connected to the one or more LEDs and configured to be placed in one of multiple switching configurations. The electronic switching circuit is further configured to direct a portion of the electric current away from the one or more LEDs, such that a remaining portion of the electric current drives the one or more LEDs. The portion of the electric current corresponds to the one of the multiple switching configurations.

The invention relates to the technical field of intelligent lesion diagnosis, in particular to a gynecological lesion intelligent diagnosis system based on multispectral imaging, which comprises a data acquisition module, an image preprocessing module, a feature extraction module, a feature fusion module, a classification diagnosis module and an interpretability output module, obtaining a tissue multispectral image data cube by using a tunable LED array and a snapshot multispectral sensor; the preprocessing module corrects, registers and standardizes data in sequence; the feature extraction module extracts spectral features by using a one-dimensional CNN and extracts spatial features by using MobileNetV2 in parallel; the fusion module is used for weighting fusion features by an attention mechanism; the classification module outputs normal, low-degree and high-degree lesion probabilities by using a full-connection neural network; and the interpretability module generates a thermodynamic diagram to position lesions, extracts key spectral bands and displays the key spectral bands. By optimizing the image acquisition parameters, the signal-to-noise ratio and the lesion contrast ratio of the image are remarkably improved, and powerful technical support is provided for gynecological lesion diagnosis.

The invention discloses a self-adaptive partition dynamic temperature control TV backlight lamp panel and a control method thereof, and belongs to the field of TV backlight lamp panels, the self-adaptive partition dynamic temperature control TV backlight lamp panel comprises a PCB, an LED array, a temperature sensor network and a dynamic adjusting module, the PCB is provided with the LED array, the PCB is provided with the temperature sensor network, the temperature sensor network is provided with a plurality of groups of digital temperature sensor modules, and the dynamic adjusting module is connected with the LED array and the temperature sensor network. The LED array is formed by uniformly distributed LED chips; the digital temperature sensor module is arranged between the LED chips, a dynamic adjusting module is arranged on the PCB, and the LED array, the temperature sensor network and the dynamic adjusting module are in communication connection. The temperature of each partition of the LED array in the TV backlight lamp panel is monitored in real time, and the temperature is adjusted through the dynamic adjusting module, so that the service life of the LED is greatly prolonged. According to the invention, invalid heat can be reduced, energy loss is reduced, and brightness fluctuation and color cast of an HDR scene are eliminated by ensuring small temperature difference of partitions.

The invention relates to the technical field of LED lamp control, in particular to a matrix type dynamic partition PWM control device and method. The method comprises the following steps: performing parallel branch control node analysis on an LED array, and calculating a branch initial impedance value of a branch to obtain a branch reference impedance spectrum; continuously driving the LED array during the normal working period of the LED array, and performing temperature value compensation through the branch reference impedance spectrum to obtain dynamic branch temperature distribution data; according to the dynamic branch temperature distribution data, electric-thermal duty ratio compensation is carried out on each branch in the LED array, and partition modulation degree data is generated; bistable voltage waveform analysis is carried out according to partition modulation degree data, and then matrix type dynamic partition PWM control is achieved. According to the invention, an electric-thermal comprehensive compensation and phase deviation control mechanism is adopted, the dynamic partition management of the LED array is realized, and the problems of hot spot suppression and uniform light emission of the large-scale LED array are solved.

The invention provides a Micro-LED-based optical interconnection chip and a packaging method, and relates to the field of chips, the Micro-LED-based optical interconnection chip comprises N optical modules, each optical module comprises an SoC chip, a light emitting unit and a light receiving unit, the light emitting unit and the light receiving unit are arranged on the SoC chip, and lenses are arranged on the light emitting unit and the light receiving unit respectively; the first substrate is provided with a through groove, each optical module is electrically connected with the first substrate, and the light emitting unit and the light receiving unit are located in the through groove; the back surface of the second substrate is provided with a waveguide structure, the waveguide structure comprises a plurality of waveguide blocks, the end part of each waveguide block is provided with a total internal reflection mirror TIR, and the light emitting unit on one SoC chip reflects light to the light receiving unit on another SoC chip adjacent to the SoC chip through the total internal reflection mirror TIR so as to realize signal transmission of the adjacent SoC chips. The Micro-LED array can become an ideal scheme for short-distance optical communication by virtue of the advantages of parallel architecture, ultra-low power consumption and high stability.

The invention discloses an LED integrated lamp panel array distribution design method and device and a storage medium, and the method comprises the steps: obtaining the target working power of an LED integrated lamp panel, and determining the total number of LED lamps based on the target working power; determining a target LED array scheme based on the total number of the LED lamps; obtaining a heat dissipation efficiency limit minimum gap and a breakdown voltage limit minimum gap of the LED integrated lamp panel; determining a horizontal gap and a vertical gap of the LED array according to the heat dissipation efficiency limit minimum gap and the breakdown voltage limit minimum gap; determining the overall structure parameters of the LED integrated lamp panel according to the horizontal gap, the vertical gap and the target LED array scheme; the LED integrated lamp panels are arranged in an array mode according to the horizontal gaps, the vertical gaps and the overall structure parameters of the LED integrated lamp panels, the gaps between the LEDs are designed by combining heat dissipation with limitation of breakdown voltage, the light emitting efficiency is effectively improved, and meanwhile the working stability of the LED integrated lamp panels is guaranteed.

The invention relates to the technical field of hair care, and discloses a portable hair care cap based on a phototherapy module, the portable hair care cap comprises a cap body, the phototherapy module is fixedly mounted in the cap body, the outer wall of the cap body is fixedly connected with a shell, and an intelligent control module and a power supply device are arranged in the shell; the intelligent control module is electrically connected with the phototherapy module and the power supply device, and the helmet further comprises a heat dissipation mechanism and a buffer mechanism which are integrally arranged between the phototherapy module and the helmet body; a dynamic power adjusting module and a multi-area cooperative control module are arranged in the intelligent control module. The scalp is divided into independent control areas such as the head top, the foreangle and the temple, each area is provided with an independent LED array and a driving circuit, a user is supported to customize wavelength combination and initial power of each area through an intelligent terminal, the different maintenance requirements of alopecia and early white hair in different areas are met, and single-area or multi-area collaborative phototherapy can be achieved.

The invention discloses a Micro-LED device based on a charge compensation method and a preparation method of the Micro-LED device, relates to the technical field of nano luminescent materials and display, and solves the problems that the luminous efficiency of the Micro-LED device is reduced, the driving voltage is increased, the service life of the device is shortened and the like due to reduction of the crystal size during Mn < 4 + > doped fluoride nanocrystalline through Mg < 2 + > charge compensation. The Micro-LED device sequentially comprises a driving substrate layer, a blue light Micro-LED array layer, a light extraction layer, a color conversion layer and a packaging layer from bottom to top; the light extraction layer is a titanium dioxide nanoparticle layer; the color conversion layer is a Micro-LED device formed by mixing a solution of dispersed silver silicon core shell-cesium sodium manganese fluoride composite nanomaterial Ag (at) SiO2 / Cs2NaF6: Mn < 4 + > and Mg < 2 + > nanocrystal particles with a methyl methacrylate solution and coating the mixture on a substrate. By introducing the Micro-LED color conversion layer based on the charge compensation method, lattice charge unbalance is neutralized, lattice defects are reduced, and formation of a Micro-LED device with high brightness and high stability is facilitated.

The invention discloses a three-dimensional integrated environment treatment system for a highway tunnel, and relates to the field of tunnels, a high-voltage electrode is laid on a step surface, and a multi-layer staggered flow guide plate is arranged above the step surface; the multiple stages of step units are filled with negative ion mineral composite material layers. The UV-LED array is integrated above the multi-stage step unit and is used for emitting ultraviolet light with the wavelength of 254nm and / or 365nm; the multi-stage step unit is coated with the photocatalyst coating; the wall washing lamp is arranged at the side part or the bottom of the multi-stage step unit and is used for irradiating a gas-water mixture flowing through the step; the water circulation purification unit is arranged below the multi-stage step unit and used for collecting and purifying waterfall water flow, and purified water flows back to the first water outlet end to be recycled. According to the invention, light pollution, noise pollution and air pollution are treated as an integral system. And the integrity and the collaboration of the three-dimensional integrated environment treatment system are realized.

The invention discloses a self-adaptive brightness control method and system for an optical toning film of a color filter array, and relates to the technical field of photoelectron, and the method comprises the following steps: obtaining characteristic data of display content and ambient light data, and selecting target color band configuration in combination with a preset filtering spectrum band; according to the target ribbon configuration, applying a control signal to the optical toning film to obtain a spectrum correction coefficient; the display content is divided into a plurality of areas, a brightness demand matrix is generated, a corrected local brightness target is obtained in combination with the spectrum correction coefficient, meanwhile, driving data of the micro LED array is solved, and a backlight driving matrix is obtained; the micro LED array performs beam shaping according to the backlight driving matrix, and outputs a target picture in combination with the color filter array and the pixel driving unit; dynamically generating a color correction matrix according to the transmission state of the optical toning film of the target picture and the backlight light field distribution; according to the invention, the problems of brightness balance and color deviation are solved through micro LED partition driving and optical color matching film regulation and control.

The application provides a kind of steel band surface defect multispectral fusion high-speed detection device and detection method, belong to steel band surface defect detection technical field, including foundation and main support, the main support is door type structure, across the both sides of steel band production equipment, bottom is connected with foundation using embedded bolt.The application is irradiated to steel band surface by LED array light source respectively using white, ultraviolet light and red light source, and the image of steel band surface after being irradiated by different light sources is collected using CCD camera respectively, so that when image recognition is carried out, the image of white light source is identified according to the brightness of reflected light, the defect of different depth is identified, the image of ultraviolet light source is identified by shortening wavelength to break through diffraction limit, the resolution and contrast of surface defect detection are improved;The image of red light source enhances the color development effect of small scratch on metal surface;Through the image recognition of different light colors, the detection and recognition accuracy can be effectively improved, and the influence of sundries and reflection on detection result is reduced.

The invention discloses a Micro-LED array surface defect detection method based on an AFT-YOLO algorithm. The Micro-LED array surface defect detection method comprises the steps that a high-resolution microscopic image is acquired, and four types of targets (chip vacancy, surface foreign matter, circuit damage and chip incompleteness) are marked; adaptive weighted downsampling is introduced at a downsampling position of a step length 2 of a backbone and a neck of the YOLOv8 baseline so as to enhance fine granularity and small target perception; constructing a feature focusing-diffusion pyramid at the neck to realize cross-scale semantic consistent fusion; a task alignment dynamic detection head is adopted at a detection head, and shared convolution, deformable convolution and scale normalization alignment classification and regression optimization are carried out. According to the Micro-LED array surface defect detection method, mAP50 is about 96% on representative industrial data, reasoning is about 99 FPS, compared with a baseline model, the precision and the speed are both improved, and the Micro-LED array surface defect detection method is suitable for high-speed online AOI detection of a high-density Micro-LED array.

The utility model discloses a driving circuit, an electronic device and a vehicle, the driving circuit is used for driving an LED matrix, the driving circuit comprises a driving chip, the driving chip is connected with a first end of each LED in the LED array and is used for sending a driving signal to a first end of a target LED; the first end of a switch tube in the switch tube array is connected with the second end of the corresponding LED in the LED array, and the second end of the switch tube in the switch tube array is connected with the power supply and used for controlling the connection state of the second end of the target LED and the power supply; the target LED is one or more in the LED array. In the driving circuit provided by the embodiment of the utility model, a single driving chip can drive a large number of LEDs, the requirement of independent driving control function of a plurality of LEDs can be met, and the cost is low.

The invention relates to a preparation process of a deep ultraviolet micro LED (light-emitting diode) array with self-aligned electrodes. According to the process, a metal barrier layer is deposited, a mesa shape is formed through wet etching, a mesa is formed through etching, a passivation layer is filled to protect the side wall, the CMP technology is combined, the surface is polished to be flat, ICP etching is carried out, the metal barrier layer is exposed, the metal barrier layer is washed away, the mesa can be exposed, and then a long electrode does not need to be aligned with the process in a high-precision mode. Complex procedures are not needed, the alignment difficulty is overcome and the chip yield is improved by combining the planarization of the filling thick passivation layer and the ICP dry etching technology, and industrialization of micro-LED array preparation is facilitated.

The invention discloses an inter-plant light supplement lamp intelligent control system based on PWM dimming and wireless networking, and relates to the technical field of plant light supplement illumination control, and during operation of the system, the system comprises a central management server, a wireless communication gateway, an environmental data acquisition unit, an intelligent ventilation light supplement terminal, a distributed power supply management unit and a mobile monitoring terminal. The server generates a PWM control instruction based on the environmental parameters and issues the PWM control instruction to the intelligent terminal through the wireless gateway; and the terminal adjusts the light intensity of the LED array by using the PWM driving unit, and synchronously controls the active ventilation device to improve the microenvironment between plants. Through deep integration of PWM dimming and wireless networking, gridding management and control of the greenhouse environment are realized, the photosynthetic efficiency of the middle and lower parts of plants is effectively improved, the gas diffusion rate is enhanced, the system wiring cost and energy efficiency loss are reduced, and precise agricultural production is realized.

The application relates to the technical field of photographic light source control, and discloses a soft light control method and a mobile terminal, wherein the soft light control method comprises the following steps: constructing a four-dimensional light field harmonic model, decomposing a target light effect into a time-space harmonic combination; decomposing the target light effect into a time-space mapping sequence to form light field microstructure control parameters; combining a micro-electro-mechanical system programmable reflection array and a liquid crystal spatial light modulator, cooperating with a multi-channel LED array to realize sub-millimeter light distribution control and microsecond light field dynamic reconstruction; establishing an accurate synchronization mechanism of a shooting device shutter and light effect change; providing a light effect animation programming interface based on key frames, supporting the definition of a dynamic change sequence of light trajectory, intensity and form; and through the fusion of microstructure light field control and time-space harmonic analysis, four-dimensional dynamic light sculpture is realized, and the technical problem that a traditional soft light control method can only adjust overall brightness and color temperature is solved.

The invention discloses a three-dimensional imaging detection integrated device and method for a carbon deuterium pellet, and belongs to the technical field of optical precision measurement and nondestructive testing. The device comprises an illumination mechanism, a light source mechanism and a control mechanism, wherein the illumination mechanism adopts an addressable LED array to provide multi-angle illumination; the imaging mechanism is a 4f microscopic system and is used for collecting images; the sample control mechanism is used for realizing automatic posture adjustment and transmission of the pellets; and the control mechanism coordinates all the modules to complete automatic detection. The method comprises the steps that an image sequence is collected, complex amplitude projection is recovered through a Fourier lamination imaging algorithm, and based on a tomography inversion algorithm, the surface point cloud radius is calculated and compared with a standard value, and the defect is automatically identified and marked. According to the invention, automatic, quantitative and high-resolution three-dimensional imaging and evaluation of the morphology and internal defects of the pellet are realized, and a stable and efficient measurement platform is provided for scientific research and industrial application.