42 results about "Lux" patented technology

The invention discloses an automobile cabin software control method and system based on multi-mode interaction, and relates to the field of multi-mode data, and the method comprises the steps: S1, multi-source signal synchronous collection and timestamp calibration; a user voice instruction, a gesture track and eye fixation point information are collected in real time through a distributed sensor array; according to sensor data, a three-level synchronization architecture is combined with a PTP precise time protocol to achieve microsecond-level clock synchronization, a unified time service timestamp is embedded in a data packet header, and the timestamp error is controlled within + / -0.5 ms; s2, dynamic environment interference compensation; the method comprises the following steps: constructing an environmental noise perception model; the construction of the environmental noise perception model comprises the following steps: starting a regional strong light suppression algorithm for a strong light scene with the illumination intensity greater than 10,000 lux; activating a motion compensation module for a bumpy scene with a vertical acceleration greater than 0.3 g, and outputting an environment compensation multi-modal data stream; s3, analyzing time-space association semantics; and S4, confidence decision and instruction execution.

Lighting system having visible-light source including semiconductor light-emitting devices arranged for generating plurality of visible-light emissions having range of color points including cool to very cool white color point for daytime and warm to very warm white color point for nighttime. Optical system arranged for causing some visible-light emissions to have range of beam widths including relatively wide and narrow beam widths. Mounting system causing range of beam directions. Control system causing visible-light emissions to include daytime configuration having cool to very cool white color point and relatively wide beam width, and nighttime configuration having warm to very warm white color point and relatively narrow beam width. Daytime configuration includes control system for causing visible-light emissions to include lateral- or up-light emissions, promoting relatively high equivalent melanopic lux. Nighttime configuration includes control system for causing visible-light emissions to include down-light emissions promoting relatively low equivalent melanopic lux.

An electronic device, method, and computer program product enables 2D camera capture of a facial image for login authentication while the device is in a dark environment. The method includes detecting an unlock trigger event while the device is in a locked state, and detecting, using a light sensor, a LUX value of ambient light in a space around the electronic device. In response to the LUX value of ambient light being below a threshold LUX value required to support 2D facial recognition, a light source of the device is activated to project light into the field of view of a camera of the device, to increase the LUX value of light detectable from an image captured within the camera's field of view. The camera is activated to capture the image, and the electronic device is unlocked, in response to the captured image matching a stored authentication image.

1. Name of the product in this design: Channel Light (LUX-550). 2. Purpose of this design: for channel lighting. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The right view is symmetrical to the left view, so the right view is omitted.

This invention discloses a method for cultivating Spirulina, relating to the field of microalgae biotechnology, aiming to overcome the shortcomings of existing technologies in terms of low Spirulina biomass yield and protein content. The method includes: in a first cultivation stage, inoculating Spirulina into a basal culture medium and conducting photoautotrophic cultivation at a light intensity of 5000-10000 lux until the optical density (OD560) reaches 0.6-0.8; in a second cultivation stage, reducing the light intensity to 1000-3000 lux and adding calcium alginate-encapsulated sodium bicarbonate microspheres, cultivating until the algal cell dry weight reaches 1.5-2.0 g / L; in a third cultivation stage, increasing the light intensity to 8000-12000 lux and adding sodium nitrate slow-release granules supported on anion exchange resin. This invention can achieve a synergistic increase in Spirulina biomass dry weight and protein content.

The invention discloses a multi-target collaborative optimization regulation and control method and system for a photovoltaic sunshade curtain wall, and relates to the technical field of optimization regulation and control, and the method comprises the steps: collecting an outdoor radiation intensity parameter RAD, a wind speed parameter WND, an indoor illumination parameter LUX and a personnel existence signal PER in real time through a sensing module; mode switching is carried out according to the personnel existence signal PER and the sunshine intensity parameter RAD, and when it is detected that personnel exist and the radiation intensity is higher than a sunshine threshold value, a comfortable mode is entered; multi-source parameters of the exterior of the curtain wall and the indoor environment are collected in real time and subjected to fusion analysis through the sensing collection module, dynamic monitoring and feedback control over a radiation intensity parameter RAD, a wind speed parameter WND, an illumination parameter LUX and a personnel existence signal PER are achieved, and a comfortable mode, an energy-saving mode and a power generation mode are switched under different working conditions; the system can guarantee the comfort of the indoor light environment, and achieves the cooperative improvement of the photovoltaic power generation efficiency and the energy utilization rate.

This invention discloses a device for detecting the sensitivity of an endoscopic imaging system, comprising a device body with an inlet and at least one outlet. An endoscope mounting component is disposed on the outlet. The device body is configured to attenuate the illuminance of the light beam entering through the inlet, and the mounting component is configured to further attenuate the illuminance of the light beam exiting through the outlet. The beneficial effects of this invention are that, through layered attenuation, the final illuminance entering the endoscope can be reduced to below 3 Lux. Furthermore, even below 3 Lux, the aperture size of the endoscope mount can be freely adjusted, and attenuation plates can be added to further reduce the illuminance. In addition, this device has a simple structure, low cost, and is easy to operate. The operator can directly test the device by simply attaching the light source output end and the endoscope interface, without complex adjustments or installations, saving time and effort.

The invention relates to the technical field of sliding table testing, in particular to a three-axis sliding table automatic testing system and method, electronic equipment and a storage medium. The system has the advantages that the Python script is integrated with the mechanical sliding table control module, the image recognition module and the report generation module, full-closed-loop automatic testing from button pressing to result analysis is achieved, and manual operation errors are eliminated. Compared with a traditional manual method, the test efficiency is improved by more than 80%, the single test period is shortened from 8 seconds to 1.5 seconds, the method is particularly suitable for a ten thousand secondary service life test scene, the labor cost is remarkably reduced, full-process automation and test efficiency improvement are achieved, and the consistency of pressing actions is ensured by combining a dynamic G code generation technology with pressure sensor feedback; through the multi-scale SSIM algorithm and histogram equalization processing, the identification accuracy of 98% is still kept when the illumination change is + / -500 lux, the problem of misjudgment caused by ambient light interference in a traditional method is solved, and the high-precision control and environment anti-interference capability is improved.

A colorized retroreflective material includes a retroreflective material defining a retroreflective material surface; a silane-free light transmitting colorizing layer disposed on the retroreflective material surface, the silane-free light transmitting colorizing layer defining a colorizing surface; and a transparent layer disposed on the colorizing surface; where the colorized retroreflective material provides a reflectivity of more than 150 cd / lux / m2.

The invention discloses a multi-environment element image generation method based on a differentiable histogram, and belongs to the crossing field of computer vision and generative models. According to the method, a differentiable histogram loss function is innovatively constructed in a YUV space, histogram micronization is realized through kernel density estimation, color distribution is constrained in combination with EMD distance and mutual information loss, and the problem of brightness-chromaticity coupling distortion of a traditional RGB space is solved. The PSNR index of the method is only reduced by 3.2%, which shows that the adaptive capacity of the method to unknown scenes is obviously enhanced. Meanwhile, the robustness of the method in an extreme environment is also obviously improved, when illumination is increased from 40 Lux to 2240 Lux, the error rate of the method is only less than 5%, while the error rate of a traditional method is larger than 25%, and when PM2.5 is increased from 7 to 42, the error rate of the method is only less than 8%, but the error rate of the traditional method reaches 30% or above.

A display comprising: (a) a plurality of pixels, each pixel comprising at least one tunable light emitter to emit tuned light in at least two modes, a low equivalent melanopic lux (EML) mode and a high EML mode, wherein said tuned light in either said low EML mode or said high EML mode spans substantially the visible light range; and (b) circuitry to drive said at least one tunable light emitter in said at least two modes.

An electronicdevice, method, and computer program productenables 2D camera capture of a facial image for login authentication while the device is in a dark environment. The method includes detecting an unlock trigger event while the device is in a locked state, and detecting, using a light sensor, a LUX value of ambient light in a space around the electronic device. In response to the LUX value of ambient light being below a threshold LUX value requiredto support 2D facial recognition, a light source of the device is activated to project light into the field of view of a camera of the device, to increase the LUX value of light detectable from an image captured within the camera's field of view. The camera is activated to capture the image, and the electronic device is unlocked, in response to the captured image matching a stored authentication image.

The invention discloses a method for improving face recognition accuracy in a low-light-source environment, belongs to the field of robot vision and biological feature recognition, and solves the problems of low accuracy, poor interference resistance and weak generalization in the prior art. According to the core scheme, ambient light data is collected through a spectrum sensor, an optimal narrow-band light parameter is calculated and directionally emitted, and a high-signal-to-noise-ratio face image is collected by combining a wave band matching sensor; using an improved multi-scale sparse dictionary learning algorithm to enhance details and suppress noise; and finally, extracting features through a frequency domain-spatial domain double-branch attention network to complete recognition. Through the collaborative design of physical light modulation and algorithm optimization, the recognition accuracy under the environment of less than or equal to 50 lux is improved, the adaptability and generalization are excellent, devices are mature and easy to engineer, and the method can be widely applied to service, security and protection robots and other equipment.

An automated light rigging system (ALRS) that adjusts, or creates, light rigs that more accurately causes lighting from light rigs and light objects to conform to, or more closely conform with, target lux values of a target lux map for one or more regions of a virtual interactive environment. The ALRS can receive light rig data to sample lux values of the virtual interactive environment to determine where a loss or discrepancy of luminance occurs among the virtual interactive environment, based at least in part on a target lux map.

The present application belongs to the field of bioengineering, and particularly relates to a method for controlling pests in an open culture system of microalgae based on light-induced coupling electric inhibition. The main steps are as follows: a light irradiation device and a high-voltage discharge device are arranged on one side of a raceway pond; first, light-induced treatment is performed, and the raceway pond is irradiated at the same time, the irradiated light at the left curve and the right curve is blue light with an intensity of 1500-2000 Lux; the irradiated light at the upper raceway and the lower raceway is red light with an intensity of 1000-2000 Lux; so as to attract rotifers to the left curve and the right curve to form rotifer aggregation areas; then, the rotifer aggregation areas at the left curve and the right curve are subjected to electric shock treatment; the present application can kill rotifers while protecting the survival of algae as much as possible, and can effectively remove most of the pest pollution through the combined regulation of light induction and high-voltage discharge, so as to ensure that the growth of microalgae biomass and the accumulation of bioactive substances are less affected, and the application prospect is wide.

The present application relates to the technical field of indoor lighting, and relates to an indoor light therapy method based on dynamic balance of natural light and artificial lighting, which comprises the following steps: S1: predicting the values of each coefficient in the annual coefficient library-II at each time point in the day in a year based on a BP neural network; S2: calculating the values of each coefficient in the annual coefficient library-I at each time point in the day in a year based on a polynomial function group and in combination with each coefficient in the predicted annual coefficient library-II; S3: obtaining the pupil illuminance distribution of the indoor at each time point in the day in a year based on a polynomial function and in combination with each coefficient in the annual coefficient library-I; and S4: selecting an artificial light supplement scheme from a light supplement library based on a genetic algorithm and taking 1000-2000 lux as the indoor illuminance target range, so as to realize dynamic light supplement in a year. The present application can preferably realize indoor light therapy.

The application discloses a preparation method of MOFs-Co induced derivative Co-doped C3N5 photocatalytic material and application of the material in photocatalytic degradation of antibiotics in cooperation with persulfate. The material is synthesized by a solvothermal method and a calcination method, a double-layer nitrogen body of MOFs-Co ligand skeleton and C3N5 nitrogen-rich precursor is co-derived to form a MOFs-Co-C3N5 photocatalyst with good Co dispersity, active sites are provided for PMS activation, and the double-layer nitrogen structure can improve the stability of the catalyst. The band gap of the MOFs-Co induced derivative Co-doped C3N5 is as low as 1.22 eV, and the recombination rate of photo-generated electrons and holes is significantly reduced. Under the condition of a 50 W LED white light source with a wavelength range of 400 nm to 830 nm and light intensity controlled at 10000 Lux, when the material dosage is 0.6 g / L and the PMS dosage is 0.5 mM, 30 mg / L of antibiotics can be completely degraded in 6 min. Therefore, the photocatalyst can effectively activate PMS under visible light irradiation, rapidly degrade organic pollutants, and has a wide application prospect.

The application discloses a kind of based on AR-HUD's anti-car-sickness method, device, equipment and storage medium, it is related to the technical field of vehicle;A kind of based on AR-HUD's anti-car-sickness method includes: obtaining initial ambient light intensity and AR picture display state;If the initial ambient light intensity is greater than or equal to 5000 lux, and the AR picture display state is non strong light state, according to the AR picture display state, AR picture parameter is adjusted to high;If the initial ambient light intensity is less than or equal to 1000 lux, and the AR picture display state is non weak light state, according to the AR picture display state and the initial ambient light intensity, AR picture parameter is adjusted to low.In strong light state, the brightness of AR picture reaches higher brightness, and contrast ratio and saturation degree all need to reach higher proportion, in weak light state, the brightness of AR picture reaches lower brightness, and contrast ratio and saturation degree all need to reach lower proportion, so that adjusted AR picture can be adapted to the environment where vehicle is located, reduce the probability of user car sickness.

1. Name of the product in this design: Channel Light (LUX-400). 2. Purpose of this design: for channel lighting. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The right view is symmetrical to the left view, so the right view is omitted.

The invention relates to a dredged soil precipitation characteristic measuring device based on illumination. Comprising a light-proof camera obscura, the right side of the light-proof camera obscura is open, an LED lighting source is installed on the left portion of an inner cavity of the light-proof camera obscura, and a plurality of light-proof partition plates which are longitudinally arranged at equal intervals are arranged on the right portion of the inner cavity of the light-proof camera obscura from top to bottom; a cuboid-shaped glass measuring cylinder with an opening in the top is placed in front of the light-proof dark box, light-proof films are arranged on the front wall and the rear wall of the glass measuring cylinder, light-transmitting cloth is arranged on the right side wall of the glass measuring cylinder, a plurality of dividing lines are arranged on the light-transmitting cloth from top to bottom, and the dividing lines transversely face the light-proof partition plates; the device further comprises a light-proof top plate assembly, the light-proof top plate assembly comprises a top plate, and the top plate is flush with the upper edge of the light-proof pasting film when placed in the inner cavity of the glass measuring cylinder. And an illuminometer is also included. The invention further relates to a measuring method. The sediment characteristic index of the dredged soil can be conveniently and effectively measured, and a basis is provided for effectively predicting the loading production efficiency of the trailing suction dredger.

The invention discloses a rhythm biological rhythm phototherapy lamp capable of effectively delaying eye axis growth and preventing and controlling myopia, and belongs to the technical field of vision prevention and control. The problem that in the prior art, a traditional eye protection lamp cannot effectively delay eye axis growth is solved. The 240W power is mainly utilized to improve the illumination intensity, meanwhile, a functional full spectrum, namely 400 nm to 680 nm, is matched, has low blue light and high red light, is continuous and full in spectrum, can form longitudinal chromatic aberration, makes imaging advance to form myopia defocus, meanwhile, designs 24-hour circadian rhythm change and dynamic light change, and is provided with a mobile phone intelligent program to be connected with the system, and the system is simple in structure, convenient to operate and high in practicability. The illumination intensity, the color temperature and the dynamic light change of the device are modified according to the requirements of doctors, so that the purpose of phototherapy is achieved. The 240W lamp holder is used for emitting light up and down, the upper light emitting power is 80W, the lower light emitting power is 160W, the desktop illumination can reach 10000 lux, and retina can secrete dopamine to achieve the purposes of delaying the ocular axis and controlling myopia.

The invention provides an automatic hermetia illucens fecula separation device and method based on thermo-photo avoidance behaviors, and relates to the technical field of separation devices. The automatic hermetia illucens fecula separation device based on the thermo-optical avoidance behavior comprises a high-temperature illumination tunnel, the internal temperature is kept at 40-45 DEG C, the illumination intensity is larger than or equal to 3000 lux, a first stainless steel mesh belt conveyor is arranged at the bottom of the high-temperature illumination tunnel, and a second stainless steel mesh belt conveyor is arranged at the bottom of the high-temperature illumination tunnel; a thickness limiting scraper is arranged on one side, close to the upper end of the first stainless steel mesh belt conveyor, of the high-temperature illumination tunnel; the internal temperature of the low-temperature dark tunnel is kept at 25-28 DEG C, the illumination intensity is smaller than or equal to 50 lux, and a second polyurethane conveying belt is arranged at the bottom of the low-temperature dark tunnel; a slope is connected between the high-temperature illumination tunnel and the low-temperature dark tunnel, and the inclination angle of the slope is 15-25 degrees. By utilizing the thermophotic avoidance behavior of larvae, the method is high in separation efficiency, free of damage, low in energy consumption and suitable for different larva ages, and quality and efficiency are both considered.

The invention discloses a screen brightness analysis system and method connected with an imaging brightness meter and an illuminometer. The system comprises a screen brightness data transmission module for receiving screen brightness measured by an imaging brightness meter; the illumination environment illumination data transmission module is used for receiving the illumination environment illumination measured by the illuminometer; and the screen brightness human eye physiological effect parameter calculation module is used for receiving the screen brightness transmitted by the screen brightness data transmission module and the illumination environment illumination transmitted by the illumination environment illumination data transmission module, and calculating the human eye physiological effect parameter according to the received screen brightness, illumination environment illumination and the like. According to the invention, when the user uses the imaging brightness meter to measure the screen brightness and uses the illuminometer to measure the illumination environment illumination, the physiological effect of the screen brightness can be synchronously calculated, and the risk of asthenopia caused by the screen brightness can be evaluated, so that the user can adjust the eyes in time.

The present application belongs to the technical field of forest pest control, and discloses a lamp trapping method for controlling eucalyptus bivittata in a forest. During the emergence period of eucalyptus bivittata adults for nearly a month, the trapping site is located on an uphill, and a 50-watt white fabric lamp is used as the light source instead of the high-wattage lamp used in conventional lamp trapping. The light intensity of the 50-watt white fabric lamp for attracting eucalyptus bivittata is 8 lux, and the distance between the light source and the ground is 2 m. The light source should be directly opposite the forest land on the downhill of the slope damaged by eucalyptus bivittata, and the effective trapping time is from sunset to 1.5 hours after sunset. The lamp trapping method for eucalyptus bivittata can prolong the activity time of eucalyptus bivittata adults from 20-30 minutes per day, effectively trap eucalyptus bivittata adults, and solve the problem of lack of efficient control methods for eucalyptus bivittata due to hidden damage and degeneration of adult mouthparts without feeding. The lamp trapping method for eucalyptus bivittata can achieve efficient control of eucalyptus bivittata adults, which are original Lepidoptera wood-boring pests.

The utility model relates to a testing device for an induction lighting lamp. The testing device comprises a lamp mounting plate, a supporting rod, a rotating shaft and a lighting lamp with adjustable luminosity. A to-be-detected position is arranged below the lamp mounting plate, a light positioning assembly is arranged on the supporting rod, the rotating shaft is longitudinally connected with the first connecting rod and the second connecting rod, and a clamping assembly used for fixing a to-be-detected lamp and a lamp sensing probe are arranged at the end of the first connecting rod. The end part of the second connecting rod is provided with a longitudinally telescopic illuminometer, and the probe height of the illuminometer is automatically matched with the lamp sensing probe. The induction lighting lamp testing device is ingenious in design, and the testing efficiency and the data accuracy can be remarkably improved; during testing, the light positioning assembly is matched with the graduated scale to accurately position the position of the probe, the illuminating lamp simulates the change of ambient light, and the illuminometer synchronously collects data, so that the problems of large positioning deviation and poor repeatability in manual testing are solved, and the accuracy and efficiency of emergency illuminating lamp trigger threshold testing are remarkably improved.

An electronicdevice, method, and computer program productenables 2D camera capture of a facial image for login authentication while the device is in a dark environment. The method includes detecting an unlock trigger event while the device is in a locked state, and detecting, using a light sensor, a LUX value of ambient light in a space around the electronic device. In response to the LUX value of ambient light being below a threshold LUX value requiredto support 2D facial recognition, a light source of the device is activated to project light into the field of view of a camera of the device, to increase the LUX value of light detectable from an image captured within the camera's field of view. The camera is activated to capture the image, and the electronic device is unlocked, in response to the captured image matching a stored authentication image.

The utility model relates to a medical internal hard endoscope linear fitting degree testing device which comprises a device body and an illuminometer arranged outside the device, the device body is composed of a fixing plate, a transmission-type lamp box and a workbench, the workbench and the transmission-type lamp box are installed on the fixing plate, an endoscope is installed on the workbench, and the illuminometer is installed on the workbench. The endoscope is right opposite to a transmission-type lamp box below, and a test card is installed above the transmission-type lamp box. The whole device has the advantages of being simple and reasonable in structure, practical, convenient to use and the like.

Method for objectively assessing a level of sensitivity to a light entering at least one eye of a subject, comprising steps: a) measuring and recording a cortical activity signal of a cortex of a head of the subject while the at least one eye of the subject receives a given light intensity during a given measuring and recording time, b) processing the recorded cortical activity signal to obtain a useful signal and to identify, from the useful signal, a specific cortical signature indicative of a sensitivity to light, c) assessing whether the specific cortical signature correlates with a hypo-sensitivity to light or a hyper-sensitivity to light state of the subject by comparing the specific cortical signature to a predefined threshold parameter of the specific cortical signature, wherein the given light intensity is less or equal to 50 lux and that the given measuring and recording time is less than or equal to 350 ms.

The system aims to improve usability by ensuring the desired illumination level for each area through simple operation. [Solution] The device comprises an arm, a connecting part, and a pair of lighting units, the pair of lighting units being rotatable to be in at least a first and second configuration with different positional relationships, the first and second regions being areas with radii of 30 cm and 50 cm, respectively, centered on a reference position on the work surface, and the third region being a square area with sides of 30 cm, with the reference position on the work surface as one vertex, the first region being illuminated with 1000 lux or more by the pair of lighting units in the first configuration and the second region being illuminated with 500 lux or more, and the third region being illuminated with 1500 lux or more by the pair of lighting units in the second configuration.

The invention discloses an illumination intelligent identification method of a three-dimensional point cloud data acquisition device for an underground coal mine, and the method comprises the steps: obtaining the spatial and temporal distribution data of environment illumination through a multispectral sensing module, and recognizing an illumination mode through an illumination feature extraction unit, an interference mode library and a convolution matching algorithm in an intelligent recognition engine; and parameters such as laser emission power and detector gain are dynamically adjusted by a point cloud adaptive processing module, and point clouds in strong and weak light areas are repaired. According to the method, a three-dimensional illumination fingerprint model can be constructed through multi-modal fusion perception, an illumination equipment parameter mapping matrix is established through a dynamic compensation mechanism, online parameter optimization is achieved through a point cloud integrity coefficient, the point cloud missing rate of a hydraulic support light reflection area is reduced to 8.1% from 38.2%, and the structural part detection precision can reach + / -1.5 mm. According to the method, the integrity of the point cloud is improved to 93.5%, the dynamic adaptation time is less than or equal to 0.8 s, the method can stably work in the range of 0.01-80000 lux, and technical support is provided for underground high-precision three-dimensional modeling.