742 results about "Color temperature" patented technology

An illumination device, system, and method are provided herein for emulating sunlight along a daytime or nighttime locus. Color temperature is determined using a first color temperature curve that includes data representative of a first color temperature as a function of a time of day. In response to a request to a change in brightness of one or more LED chains, a target color temperature output as a function of the current time of day is determined using a second color temperature curve based on the requested change in brightness. The second color temperature curve includes the target color temperature corresponding to the determined current time of day. The target color temperature output includes a lesser change in color temperature at solar noon than the change in color temperature at sunrise and sunset.

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 discloses a brightness and chrominance consistency correction method and system for an LED spliced screen, and the method comprises the steps: firstly recognizing the batch features of a module, dividing the batch features into correction partitions, and respectively collecting the original brightness and chrominance data of a high-gray linear region and a low-gray nonlinear region; and then, calculating the geometric intersection of the original color gamuts of all the partitions to determine the maximum common target color gamut, and eliminating the metamerism phenomenon caused by multi-batch mixed use from the physical level. Then, constructing a non-linear dual-order correction model, and generating a correction coefficient set containing a main linear conversion matrix and a low-gray-scale non-linear offset item; when the control system runs, the linear matrix is dynamically called according to the input gray level, and bias compensation is superposed. According to the invention, the problems of cross-batch visual angle chromatic aberration and color temperature drift and pocking marks under low gray level of the spliced screen are effectively solved, and the high-fidelity display consistency of the full gray level is realized.

The invention discloses an LED lamp strip dynamic image quality intelligent optimization method and system based on deep learning driving, and relates to the technical field of LED intelligent control. The LED lamp strip dynamic image quality intelligent optimization method and system based on deep learning driving comprises the steps of S1, preprocessing real-time LED working condition data, memory reference data and historical fluctuation abnormal data; s2, adaptively dividing the LED lamp strip into different independent partitions according to spatial and physical attributes through multi-dimensional feature analysis and clustering; s3, based on a time sequence derivative sensitivity theory, judging thermal drift instability and color temperature abnormity, and entering a sudden change criterion process; s4, executing a sudden change criterion process according to a trend sudden change composite criterion result, and entering an offset compensation process; and S5, based on a criterion compensation theory, executing an offset compensation process. The problems of image quality degradation and color difference accumulation after long-term operation due to the fact that an existing LED lamp strip image quality intelligent optimization system is difficult to achieve real-time self-adaptive compensation of color temperature drifting and color cast phenomena caused by chip junction temperature rise are solved.

The invention discloses a multi-channel multi-color-temperature intelligent light source system for consistency calibration of a camera module and an optimization method, and the calibration system generates PWM signals through an STM32F103ZET6 main control unit of a light source controller to control the light output of each group of cold and warm LEDs so as to provide a stable and adjustable illumination environment; measuring reference brightness and chromaticity parameters of cold light and warm light of each group of LEDs, setting a target brightness value and a color temperature value, and converting the target brightness value and the color temperature value into target chromaticity coordinates; the initial PWM duty ratio of the cold and warm light LED is calculated, a piecewise polynomial nonlinear compensation algorithm is adopted to correct the duty ratio, and the LED is driven to output mixed light meeting the target brightness and color temperature; collecting a large amount of brightness and color temperature data by cyclically and gradually adjusting the duty ratio, and generating an error thermodynamic diagram; and the compensation model coefficient is optimized and updated according to error analysis, so that the light source output keeps high-precision consistency in a full range. Compared with the prior art, the method has the advantages that the brightness and color temperature consistency of the light source can be automatically calibrated and continuously optimized, the accuracy and stability of OTP burning calibration of the camera module are greatly improved, and the production test efficiency and the product imaging quality are improved.

A lighting system includes a power supply circuit configured to generate a drive signal for powering a light source based on an input power signal; a temperature sensor configured to measure a light source temperature corresponding to the light source; a current control circuit coupled to the light source and configured to adjust a current of the light source based on the drive signal and a reference signal; a channel controller configured generate the reference signal based on a dimmer setting, and to generate a compensation drive signal based on the light source temperature; and an auxiliary light configured to generate compensation light for compensating a correlated color temperature (CCT) drift in an output light of the light source based on the compensation drive signal.

The invention relates to a display color temperature synchronous control method and system for a multi-screen collaborative scene, and the method comprises the steps: collecting the dominant hue information of each display and environment illumination color temperature data in real time, and recognizing a dominant display; constructing a combined color temperature reference parameter containing a target color temperature reference value based on the data and the color temperature state of the dominant display; comparing the current color temperature of the non-dominant display with the reference parameters, and generating a step-by-step progressive adjustment instruction sequence; combining response delay characteristics to rearrange an instruction time sequence to form a synchronous execution scheduling table; and sending a control signal according to the dispatch table, and maintaining the state of the dominant display to realize color temperature synchronization. The method realizes multi-screen color temperature high-precision cooperative control, improves scene adaptability and visual experience, and is suitable for various multi-screen cooperative scenes.

The invention discloses an intelligent enhancement method for a road image under a low-illumination condition, and belongs to the technical field of computer vision and video processing, and the method comprises the following steps: S1, calculating an actual illumination value of a current road scene; s2, adaptively adjusting the exposure time; s3, targeted noise reduction; s4, color temperature correction; s5, enhancing the image contrast; s6, performing strong light suppression to obtain a final current road scene image; under extremely low illumination, the image signal-to-noise ratio is increased by more than 40%, the color rendition degree is larger than or equal to 90%, clear full-color images can be output without external light supplementation, meanwhile, the strong light inhibition rate of vehicle headlights and the like is larger than or equal to 95%, the overexposure area is reduced to be lower than 5% of the original area, the algorithm processing delay is smaller than or equal to 40 ms, the real-time monitoring requirement is met, and the method is suitable for highway night scenes.

An image processing method, executed by an electronic device and comprising: performing object detection on an image to be processed, so as to determine a pixel-region of interest in the image to be processed; performing color temperature value estimation on the basis of a non-pixel-region of interest other than the pixel-region of interest in the image to be processed, so as to determine an estimated light source color temperature value of the image to be processed; on the basis of the estimated light source color temperature value of the image to be processed and historical light source color temperature values of reference images, determining a white balance gain for the image to be processed, wherein the reference images and the image to be processed are acquired by a same image acquisition device, the reference images comprising at least one of K image frames acquired by the image acquisition device before the image to be processed, and K being a positive integer; and, on the basis of the white balance gain for the image to be processed, performing color correction at least on the pixel-region of interest in the image to be processed.

The utility model relates to the technical field of dimming and color temperature switching, in particular to an IC chip and a multi-color-temperature switching circuit. A Flash storage module, a timer module, a first analog-to-digital conversion module, a second analog-to-digital conversion module, a third analog-to-digital conversion module, a processing module, a reference generation module, a comparator module, an operational amplifier AMP1, an operational amplifier AMP2, an MOS tube Q1 and an MOS tube Q2 are arranged in an IC chip, and a current setting pin and a first color temperature state setting pin are arranged on the IC chip. The second color temperature state setting pin, the third color temperature state setting pin, the power failure detection pin, the first LED current output pin and the second LED current output pin are matched together to realize the dimming and multi-color-temperature switching functions, so that the IC chip in the scheme can be compatible with the silicon controlled rectifier dimming function and also can realize multi-color-temperature switching.

The invention discloses a graph pattern generation method based on a Clarii graph, and relates to the technical field of information, and the method comprises the steps: constructing an extended fluorescent material calibration module, introducing a saturation critical light intensity reference value, and carrying out the calibration of the Clarii graph under the dual constraints of color temperature deviation distribution and brightness standard deviation; according to the method, the pattern contrast change condition is recognized through the adjusted pattern contrast, a correction index is formed, the LED backlight wavelength is corrected for the second time according to the correction index, pattern structure deviation information is fed back to a spectrum control link, and the color uniformity of the LED backlight is improved. According to the scheme, on the premise of ensuring uniform fluorescence response and inhibiting bright spots, dark spots and stripes, the Clariy pattern can be kept stable, clear and layered in an actual application environment.

The invention relates to the technical field of intelligent building lighting control, in particular to a building lighting self-adaptive regulation and control system based on multi-source perception, which comprises a multi-source environment data acquisition module, a user interaction feedback acquisition module, a double-path light environment demand prediction network and a lighting parameter generation and execution unit control module. According to the system, internal and external environment perception and user preference are fused, a deep time sequence convolutional network and a graph attention mechanism are combined to predict illumination requirements, and brightness, color temperature and light beam direction are cooperatively adjusted. According to the invention, high-precision and closed-loop self-adaptive regulation and control can be realized, the energy consumption is obviously reduced, and the user satisfaction is improved.

The invention provides a self-adaptive adjustment method and system for light sensation illumination of a hotel environment, and is applied to the field of data processing. According to the method, multiple illumination collection points are arranged in the hotel room, multi-dimensional optical information such as illumination, color temperature and spectral deviation is collected in real time, and the regional synchronism judgment of the illumination change trend is combined, so that misjudgment caused by single-point abnormity, local shielding or reflective interference can be effectively checked, and when the trend is judged not to be synchronized, the judgment result is more accurate. And further introducing a calculation mechanism of an illumination weight, a user-defined illumination state and a natural light contribution value, dynamically identifying an actual influence range of the natural light in a space, and accurately distinguishing action areas of the natural light and the artificial light, so that an illumination suppression strategy is dynamically adjusted, and excessive or insufficient light supplementation is avoided.

The invention discloses an office lighting optical system with double light-emitting paths and a light quality control method, and relates to the technical field of lighting, the system comprises a double-channel module which provides central direct light and peripheral reflected light, and parameters of the double-channel module are independently adjustable; the in-situ acquisition module acquires brightness distribution information of a typical observation area; the dynamic execution mechanism module adjusts the light shielding angle of the lamp; the core processing and control unit executes a rhythm-comfort level fusion optimization algorithm, takes a target illumination parameter generated by a human body physiological rhythm as a guide, takes a constraint that a glare value is controlled to be lower than a preset threshold value, and collaboratively optimizes light source brightness, color temperature and shading angle parameters according to priorities; the control method comprises the steps of target parameter generation, glare value in-situ calculation, multivariable optimization decision and instruction execution and feedback learning, visual comfort is guaranteed, meanwhile, the system fits the physiological rhythm of the human body, the system has the self-optimization capacity, the light quality is stable and reliable, and the system is suitable for office lighting scenes.

The utility model discloses a bulb capable of adjusting color temperature, which comprises a lamp body, at least two groups of light sources with different color temperatures are arranged in the lamp body, the lamp body is provided with a connecting part, and the connecting part is used for being electrically connected with an external power supply; the driving control module is used for being electrically connected with the light source; the micro gear shifting switch comprises an operation handle, the whole micro gear shifting switch is arranged in the lamp body, the operation handle of the micro gear shifting switch extends out of the surface of the lamp body, and the micro gear shifting switch is electrically connected with the driving control module. And the minimum distance between the operating handle of the micro gear shifting switch and the connecting part is greater than 4MM. The device is simple to operate and convenient to use.

The utility model discloses a high bay lamp capable of changing a light-emitting angle by replacing a diffusion cover, and relates to the field of high bay lamps, the high bay lamp comprises a lamp main body and a wiring door cover installed at the upper end of the lamp main body, a power and color temperature adjusting switch is installed on the left side of the lamp main body, and a power supply is installed in the lamp main body. An LED light source is arranged in the lamp body, a diffusion rubber cover is installed below the LED light source, and a quick-release replacement mechanism is arranged on the outer side of the diffusion rubber cover. According to the high bay lamp capable of changing the light emitting angle by replacing the diffusion cover, when the high bay lamp is used, the lamp body can be hung at a proper position through the hook, and at the moment, the LED light source can be started under the action of the power and color temperature adjusting switch and the power source, so that the LED light source emits light to the specific diffusion rubber cover; a worker can select a proper diffusion rubber cover to change the angle of light in different scenes, and the device is convenient for the worker to use.

The application discloses an integrated double-color-temperature lamp box light source, and belongs to the technical field of illumination light sources.The integrated double-color-temperature lamp box light source comprises a shell and a control module, the shell is a hollow cylindrical structure, an installation cavity is arranged in the shell, and the inner wall of the shell is provided with annularly arranged heat dissipation fins; the annularly arranged heat dissipation fins and heat dissipation through holes form a high-efficiency heat dissipation channel, the heat dissipation channel is matched with a heat-conducting pad to quickly conduct the heat of a substrate, and the working stability and service life of LED lamp beads are significantly improved; warm-color-temperature and cold-color-temperature LED lamp beads are alternately and uniformly arranged in an annular manner, light mixing is more uniform and soft, there are no obvious color-temperature partition and dark area, and the color rendering effect is better; the color temperature and brightness can be flexibly adjusted by cooperating a light-adjusting knob with a wiring rear seat, different illumination scene requirements can be adapted, the sealing property of a wiring position is improved by a waterproof sealing pad, the overall structure is compact, installation and positioning are accurate, integrated design is realized, the assembly efficiency is high, and the integrated double-color-temperature lamp box light source has the advantages of excellent heat dissipation, accurate control, safety in use, wide applicability and the like.

The invention relates to a cooperative control method for a lamp strip of a steaming oven, and the method comprises the steps: enabling an illumination system to sense and respond to a specific state of a cooking process through obtaining a current cooking program type of the steaming oven and a program stage of the current cooking program type; and furthermore, the preset lighting effect strategy database is inquired according to the program type and stage, so that the lamp strip control parameters which are accurately matched with the preset lighting effect strategy database are obtained, the parameters comprise the target color temperature and the target brightness, and intelligent association and dynamic calling of the lighting strategy and the cooking scene are realized. Finally, lamp strips arranged on multiple surfaces of the inner cavity of the steaming and baking box are driven to emit light based on the control parameters, conversion from the control instruction to the physical lighting effect is completed, and therefore the self-adaptive lighting environment deeply coordinated with the cooking logic is constructed. According to the invention, a traditional fixed illumination mode is converted into a programmable and interactive dynamic lighting effect system, so that the definition and convenience of observing the food state in the cooking process by a user are remarkably improved, and the intuition and richness of man-machine interaction are enhanced.

This invention provides an intelligent wake-up method, an intelligent control system, an electronic device, and a storage medium. The intelligent control system includes at least a control module and an LED light panel. The LED light panel is equipped with an LED light source module. When the wake-up conditions are met, the control module controls the color temperature of the LED light source module to be equal to a color temperature threshold during the wake-up period. The color temperature threshold is configured based on color temperature-emotion evaluation data. During the wake-up period, the control module controls the output power of the LED light source module to change linearly with time, causing the illuminance of the LED light panel to change from dark to bright, simulating the sunrise process, thereby waking up the user. The difference between the integral of the LED light panel's illuminance over time and the eye exposure threshold is within a preset range. The eye exposure threshold is configured using eye exposure data, arousal evaluation data, and sleep quality data.

The utility model relates to the technical field of lamp body surface touch temperature control of adjusting color, propose a kind of color temperature adjustable lamp structure, including setting in the lamp installation position lamp body, lamp body is equipped with light assembly, and the touch adjusting component for adjusting the color temperature of light assembly, light assembly is electrically connected with touch adjusting component;Lamp body outer surface is equipped with the touch operating area corresponding with touch adjusting component. Touch adjusting component includes touch control circuit board, the drive component for connecting power supply is equipped on the outside of lamp body, touch control circuit board is electrically connected with the electric control part in drive component, touch control circuit board is arranged in lamp body or arranged in drive component;Drive component is power adapter. The touch operating area corresponding with touch adjusting component is directly arranged on the outer surface of lamp body, without disassembling operation to lamp, simplify the procedure of lamp color temperature adjustment.

A five-level colour temperature adjustable circuit for a lamp, such as a light-emitting diode (LED) lamp, comprises a five-level shift switch 1, a first lamp bead 2 and a second lamp bead 3, the first

The invention relates to the field of intelligent medical treatment, in particular to a dynamic illumination prediction method and device based on a refraction state and a program product. Comprising the steps of obtaining eye refraction data of a to-be-tested person; carrying out clustering and feature fusion on the refractive data to obtain fusion features; outputting the fusion features to a trained prediction model for prediction to obtain a brightness prediction value and a color temperature prediction value; and the prediction model carries out weight parameter initialization by compressing an abnormal value of refractive data and compensating distribution deviation of refractive clustering. According to the method, personalized expression of different myopia degrees on illumination perception differences can be achieved, brightness and color temperature parameters are dynamically predicted, actual lighting equipment is driven, dynamic balance of visual comfort and environmental adaptability is achieved, and the method has good actual application value.

The invention discloses a multi-mode light-supplementing sleep-aiding control circuit, device and system integrating sound, light and smell, and a control method, and relates to the technical field of electronic circuits. The circuit comprises a main control module, a light supplementing module, a sleep-aiding lamplight module, an environment sensing module, an aromatherapy module, a power amplifier loudspeaker module and the like, low-blue-light soft and brightness-adjustable illumination is output through the light supplementing module, and the problems of too strong blue light, screen stroboflash and reading fatigue when an intelligent terminal is used are solved. The sleep-aiding light module can be adjusted to warm color temperature, the mood is relaxed, and illumination secreted by melatonin is not damaged. The environment sensing module collects environment light and proximity distance information in real time, so that the equipment can intelligently adjust the light supplementing brightness and the sleep-aiding lamp mode; hot fumigation closed-loop control is adopted for the aromatherapy module, constant-temperature adjustment is achieved through temperature sampling, and volatilization of sleep-aiding fragrance is more stable and safer; the power amplifier loudspeaker module provides stable output for white noise, natural sound and rhythmic respiration guiding sound, and provides reliable acoustic assistance for sleep adjustment.

The invention discloses an illumination adjustment method and system, illumination equipment, a table and a readable storage medium, and the method comprises the steps: collecting perception data which comprises a task type, a user posture, an environment parameter, an illumination parameter in a target region and an equipment operation state of electronic equipment used by a user during work, the illumination parameters comprise illumination and color temperature, and the task type is a current work activity type identified based on the use of electronic equipment by a user; based on the task type, the equipment operation state, the user posture, the environment parameters and the illumination parameters, environment preference models corresponding to the user in different task scenes are constructed, and the task scenes are determined based on the equipment operation state and the task type; and according to the environment preference model, in combination with the task type, the equipment operation state, the user posture and the environment parameters, generating an adjustment instruction for controlling the lighting equipment so as to adjust the illumination and the color temperature irradiated to the target area. The user experience can be improved.

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 an image display method and electronic equipment, relates to the field of display, and is used for enabling the screen color temperature of the electronic equipment and the RGB value of an image displayed by the electronic equipment to be matched with the light environment where the electronic equipment is located. The method comprises the following steps: firstly, the electronic equipment displays a first image in a first light environment; then, when the light environment where the electronic equipment is located is changed from the first light environment to a second light environment, the electronic equipment obtains a target screen color temperature corresponding to target light information; and finally, after the electronic equipment displays the first image, displaying the N frames of second images frame by frame, and adjusting the screen color temperature frame by frame according to the nonlinear color temperature change curve in the process of displaying the N frames of second images until the screen color temperature of the electronic equipment reaches the target screen color temperature when the electronic equipment displays the Nth frame of second image.

The invention discloses a self-adaptive ambient light matching method and system for the color temperature of an electronic whiteboard, ambient light information is collected through a common camera, the color characteristics of ambient light are sensed in real time in combination with an intelligent spectrum reconstruction algorithm and a color temperature matching strategy, and the color temperature displayed by the electronic whiteboard can be dynamically matched with the ambient light, so that the color temperature of the electronic whiteboard can be dynamically matched with the ambient light. Comprising the following steps: 1, pre-constructing a strategy library in which a plurality of groups of color temperature-brightness parameters and matched scenes are stored; 2, acquiring an ambient light image through a wide-angle camera, and performing multi-frame average noise reduction and exposure calibration on the ambient light image to obtain an RGB measured value of ambient light; 3, based on a preset PCA spectrum basis vector library, reconstructing the RGB measured value of the ambient light into an ambient spectrum in a range of 380-780 nm by adopting a non-negative sparse regression algorithm; and 4, calculating an environment color temperature according to the reconstructed environment spectrum, selecting a color temperature-brightness parameter matched with the environment color temperature from a strategy library in combination with a CIE CAM02 color adaptation transformation model, and adjusting the electronic whiteboard.

A lighting device including an LED light source, wherein the LED light source includes a first LED strand for generating a first light with a first correlated color temperature and a second LED strand for generating a second light with a second color temperature different from the first color temperature. The lighting device further comprises control electronics with a controllable LED driver for driving the LED light source, wherein the control electronics comprise a switch for switching between the first LED strand and the second LED strand so that either the first LED strand or the second LED strand is activated depending on the switch position. A lighting system comprising the lighting device is further disclosed.

The utility model relates to the technical field of silicon controlled rectifier dimming, in particular to a multi-color-temperature multi-power switching circuit compatible with silicon controlled rectifier dimming, which comprises a rectifying and filtering module, a silicon controlled rectifier dimming constant-current module, an MCU (Microprogrammed Control Unit) linear power supply module, a power failure detection module, a color temperature control module, a double-path PWM (Pulse-Width Modulation) dimming constant-current module and a load module, the input end of the power failure detection module is electrically connected with the rectification filtering module and used for detecting the power failure condition of the rectification filtering module, and the output end of the power failure detection module is electrically connected with the analog input end of the color temperature control module. The two pulse width modulation ends of the color temperature control module are electrically connected with the two pulse width modulation ends of the double-path PWM dimming constant-current module in a one-to-one correspondence manner, so that not only can a silicon controlled rectifier dimmer be compatible for brightness adjustment, but also the color temperature and the power can be flexibly and conveniently switched at any time; and meanwhile, the problem that the color temperature and the power are switched mistakenly due to the fact that a switch is turned on for several times due to mistakes in the actual use process is solved, and then the use experience of customers is improved.

The present application provides a white light-emitting device and a light-emitting display device including the same, in which the relationship between the triplet energy levels of dopants of a light-emitting layer is appropriately adjusted in order to improve the efficiency of the white light-emitting device and the light-emitting display device, thereby increasing the color temperature and achieving rich color expression.