194 results about "Light quality" patented technology

The invention discloses an energy-saving illumination control system and method for an urban illumination LED lamp group, and relates to the technical field of illumination control, and the system comprises an ambient light detection module, a traffic flow monitoring module, a time period division module, a weather information acquisition module, a weather information control module, an LED lamp group driving module, a wireless communication module, a high-precision photosensitive sensor for the ambient light detection module, a filtering and temperature compensation module, and an intensity measurement accurate data transmission module. The traffic flow monitoring module depends on geomagnetism or camera shooting, is high in precision and strong in recognition, and facilitates regulation and control through data; the time period division module accurately times and corrects time according to a clock chip, and sets illumination measures according to the time; the weather information acquisition module is networked to acquire meteorological data, and lamps are adjusted according to day conditions; and the control module multi-core microprocessor calculates illumination levels and brightness according to multi-source data to control lamp groups. According to multi-factor intelligent lamp control, energy saving is remarkable, lighting quality is good, comfort and safety are improved, remote monitoring and management can be achieved, troubleshooting is accurate and efficient, maintenance is convenient and fast, intelligent and green development of urban lighting is promoted, and the intelligent city construction requirement is met.

The invention discloses an intelligent lighting street lamp system and a control method thereof, and the method comprises the steps: obtaining an LED drive current and a dual-energy output parameter, and generating a PWM drive characteristic through frequency decomposition; performing pre-dimming compensation on the LED based on the human eye brightness sensitivity to obtain a luminous flux control feature and an energy prediction feature; obtaining LED junction temperature change data and carrying out thermal characteristic analysis to obtain LED driving compensation characteristics; dividing an illumination control time window and dynamically adjusting an LED driving current waveform to obtain a time sequence driving characteristic; and fluctuation analysis is carried out according to the real-time luminous flux data, and linkage adjustment is carried out on PWM driving characteristics, luminous flux control characteristics, LED driving compensation characteristics and time sequence driving characteristics. According to the invention, the rapid and accurate adjustment of the LED driving current can be realized, the influence of the dual-energy output fluctuation on the illumination quality is effectively inhibited, and the accurate matching problem of the energy supply and the illumination demand in a key time window is solved.

The invention relates to the technical field of illumination control, in particular to an LED illumination efficiency optimization method and system, and the method comprises the following steps: recognizing an illumination use mode and a change trend of an environment condition based on real-time external environment data and historical LED illumination operation data, and obtaining an environment and operation data analysis result. According to the invention, prediction analysis is carried out on the LED illumination demand through the Gaussian process regression model, accurate prediction of the illumination demand under differentiated environmental conditions and time periods is realized, the responsiveness and adaptability of the illumination equipment are improved, the illumination control decision process is optimized by comprehensively considering the real-time external environment data and the historical illumination operation data, and the accuracy of the illumination control decision process is improved. The introduction of the hybrid dynamic Bayesian network enhances the real-time evaluation capability of the energy efficiency state of the LED lighting equipment, so that the energy efficiency management is more precise and efficient, and the use of a multi-objective optimization strategy provides a more comprehensive solution for balancing the energy efficiency, the illumination quality and the user comfort.

The invention discloses a plant seed seedling raising light environment optimization system and method based on an LED light source, and belongs to the technical field of seed seedling raising. The invention discloses a plant seed seedling culture light environment optimization system and method based on an LED light source. The system comprises a light environment monitoring unit, a light environment optimization unit and a cooperative regulation and control unit. The problem of limitation in the prior art is solved, the light environment monitoring unit monitors light environment parameters of seedling raising in real time, data support is provided for follow-up light environment optimization, the light environment optimization unit conducts analysis according to light environment data provided by the light environment monitoring unit, and the light environment monitoring unit monitors the light environment parameters of seedling raising in real time. The light environment parameters of plant seed seedling raising are dynamically adjusted, it is ensured that plants obtain the optimal growth condition, the cooperative regulation and control unit analyzes the interaction relation between the light intensity, the light quality, the illumination duration and the temperature and humidity by combining light environment data, and therefore cooperative regulation and control over the light environment and the environment parameters are achieved. And more ideal environmental conditions are created for plant growth.

The light source module comprises a first light-emitting unit, a second light-emitting unit, a third light-emitting unit and a fourth light-emitting unit which are electrically independent from one another and have different light colors, and the light color of the single-color light-emitting unit is optimized by the light source module, so that the color temperature coverage range of white light obtained by light mixing is wide; compared with the prior art, the light source module has the advantages that the coverage range is from 1800 K to 20000 K, meanwhile, the light source module has good color rendering property, the color rendering index CRI is larger than 90 in the color temperature range of 1800-20000 K, the color rendering index CRI is larger than 95 in the color temperature interval range of 2100-20000 K, the light quality of the light source module is superior to that of an existing RGB, RGBW and other all-in-one light source, and the light source module is more suitable for the field of general indoor illumination. Meanwhile, color light can be compatible by controlling the multiple light emitting units, and a multi-color light mixing system capable of giving consideration to high-quality white light and color light atmosphere at the same time is formed.

The invention discloses a photovoltaic ecological system based on a holographic frequency division technology. The photovoltaic ecological system comprises a frame body; the frequency-division concentrating photovoltaic unit comprises a substrate layer which is formed by connecting a heat conducting plate and a dodging plate and is connected with the frame body through a reciprocating motion mechanism, a concentrating layer and a holographic grating layer which are sequentially arranged above the heat conducting plate, and a photoelectric conversion battery arranged on the heat conducting plate; the light adjusting unit is arranged between the two adjacent frequency division concentrating photovoltaic units and comprises two frequency division plates connected through a rotating pair, and the ends, away from each other, of the two frequency division plates are connected with the corresponding frequency division concentrating photovoltaic units through rotating pairs; the reflective optical baffles are arranged on the two sides of the substrate layer, and side wall batteries are further arranged on the sides, close to the light adjusting units, of the reflective optical baffles. According to the invention, through a spectrum frequency division and space light energy distribution mechanism, multi-band efficient utilization of sunlight is realized, the light quality and the light quantity required by plant photosynthesis are guaranteed, and the photovoltaic power generation efficiency is improved.

The invention relates to the technical field of plant cultivation, and particularly discloses a muskmelon soilless cultivation method based on a plant factory, which comprises the following steps: S1, seedling raising: placing muskmelon seeds after germination acceleration in a seedling raising tray, and carrying out first light treatment to start seedling raising under the light quality conditions of 10-15% of far-red light, 25-30% of red light, 25-30% of blue light and 25-30% of white light; s2, field planting and separate planting: performing secondary illumination treatment on the melon seedlings, and starting to cultivate the melon seedlings until the melon seedlings grow to a flowering pollination period; the light quality conditions of the second illumination treatment are as follows: the far-red light is 18-22%, the red light is 18-22%, the blue light is 18-22% and the white light is 34-46%; s3, blooming, pollinating and harvesting: when a first flower is bloomed, the time required for alternation of daytime temperature and night temperature is 0.25-1 h, and cultivation is continued until the muskmelon is harvested. The method can shorten the growth cycle of muskmelons and increase the sugar content of fruits.

The application provides a synergic dynamic lighting method and its adjustable light direct current incandescent lamp, relates to the field of vision and lighting, and aims to ensure that light is uniform and dynamic in the field of vision; the color temperature is strictly imitated candlelight; the core is direct current adjustable light incandescent lamp technology; and the light in the field of vision is mostly non-uniform and static in the present night desktop lighting, and the light quality is never as good as direct current incandescent lamp; this easily leads to eye accommodation laxity and induces axial myopia; the application mainly comprises two direct current incandescent lamp platforms, one of which illuminates a book, and the other of which illuminates a white wall in front of the eyes; the light intensity of each is adjustable to ensure the uniformity of light in the field of vision, so that the fovea and peripheral rod cells of the retina are stimulated at the same time; the two lamps can also realize the synchronous adjustment of illumination according to the program, thereby guiding the dynamic focusing of the eyes and realizing dynamic lighting; the dynamic also reflects the low color temperature mammal lighting imitating candlelight according to the biological clock and the anti-alzheimer's lighting with 40Hz deep frequency flash.

The light source module comprises a first light-emitting unit, a second light-emitting unit, a third light-emitting unit and a fourth light-emitting unit which are electrically independent from one another, and light emitted by the light-emitting units is mixed to form white light. By selecting the light color and spectral characteristics of the light emitting unit, the white light color temperature coverage range obtained by the light source module is wide, the color deviation Duv value is smaller than 0.003, and therefore the white light color deviation problem is solved. Meanwhile, the white light spectrum of the light source module simulates a target spectrum, and when the relative color temperature is more than 4000 K, the target spectrum is a sunlight spectrum; and when the relative color temperature is lower than 4000 K, the target spectrum is a blackbody radiation spectrum. Due to the fact that the spectrum simulates sunlight or a black body radiation spectrum, the obtained white light spectrum has good spectrum similarity and color rendering, the light color of the white light of the module is closer to sunlight, the light quality performance of the white light source is obviously superior to that of an existing double-color-temperature light mixing white light source, and the module is more suitable for the field of general illumination.

The invention discloses an artificial light environment for promoting the growth of cereal crop seedlings, the light environment spectrum is composed of blue light and red light, and in terms of light quality spectrum integral percentage, the blue light accounts for 10-25%, and the red light accounts for 90-75%; wherein the peak value of the blue light ranges from 425 nm to 445 nm, and the peak value of the red light ranges from 680 nm to 700 nm. The light environment provided by the invention is mainly used for carrying out light source irradiation treatment in the seedling stage of cereal crops, and the purpose of cultivating strong seedlings is achieved.

The invention relates to the technical field of agricultural lighting, in particular to a rubber forest multiband bionic light supplementing system. The device is composed of a light source module, an environment sensing module, an intelligent control module and an adjustable supporting structure. The light source module is composed of at least three LED units with different wave bands, and the light intensity proportion of each wave band can be independently adjusted. The environment sensing module collects light environment parameters and meteorological data of a rubber forest canopy in real time. The intelligent control module dynamically adjusts the light intensity proportion of each wave band based on a light response curve of photosynthesis of the rubber tree and feedback data of the environment sensing module; the adjustable supporting structure adopts a modular truss design. The invention provides a multi-band bionic light supplementing system capable of simulating the dynamic characteristics of natural light and self-adapting to the physiological needs of rubber trees, and accurate matching of light quality, light intensity and light period is realized through intelligent sensing and dynamic regulation, so that the photosynthetic efficiency, the latex yield and the energy sustainability are improved.

The utility model discloses an unmanned aerial vehicle load quick release mechanism, which comprises an upper cover plate, a rotating ring, an upper mounting seat, a lower cover plate, a lower mounting seat and a driving motor, an annular non-full circular step is arranged on the inner ring of the upper mounting seat and is used for mounting the rotating ring, and the upper cover plate is mounted at the upper end of the upper mounting seat and limits the axial movement of the rotating ring; a lower cover plate is mounted at the upper end of the lower mounting seat, a driving motor is mounted at the lower end, and a floating joint male head is mounted in the center; the device further comprises an unlocking mechanism, and the upper mounting base and the lower mounting base are quickly unlocked and disassembled through the unlocking mechanism. The unmanned aerial vehicle connecting device is compact in structure, small in size, light in weight, capable of conducting electrical connection while conducting mechanical connection, easy to operate and capable of achieving rapid mounting and dismounting of an unmanned aerial vehicle load.

The present application belongs to the field of agriculture and forestry planting, and particularly relates to a method for laser regulation and control of plant growth trend. The method comprises the following steps: 1) forming a uniform laser light field by arranging laser light sources in a certain array distribution; and 2) adjusting the light quality and intensity of the laser light field according to the influencing factors of the microclimate environment of the planting site; the influencing factors of the microclimate environment include environmental temperature, relative humidity and environmental light intensity. The present application realizes the combination of water, light and heat by coordinating the characteristics of planting under photovoltaics, and can realize the growth regulation and control of plants planted in the shed or under the board by combining the low-energy-consumption laser with the microenvironment characteristics in the shed or under the board, thereby effectively improving the planting effect.

The invention relates to the field of agricultural lighting equipment, and discloses a plant light quality regulation and control integrated LED light source with a uniform spectral space and a method of the plant light quality regulation and control integrated LED light source. The multispectral LED chip group is arranged on the lamp bead substrate in a die bonding manner; the plurality of groups of independent bonding pads are arranged on the lamp bead substrate and are electrically isolated from one another; and the transparent optical lens adhesive layer covers the chip group. And different spectrum chip groups in the multi-spectrum LED chip group are electrically connected with the corresponding independent bonding pads respectively. Driving current is provided for the multiple groups of independent bonding pads through an external driving circuit, and the luminous intensity of different spectral components is independently adjusted by independently adjusting the magnitude of the current input to different bonding pad groups, so that the output composite spectrum is changed. According to the invention, the multispectral chip is integrated in a single packaging body, the problem of non-uniform spectral space is solved from the physical source, the accurate regulation and control of the spectral ratio are realized through multichannel independent control, and the design and manufacturing cost of the lamp is reduced at the same time.

The invention belongs to the technical field of crop planting, and discloses a method for improving lettuce seedling culture quality under a weak light background. The method comprises the following steps: accelerating germination of lettuce seeds, and sowing the lettuce seeds after the lettuce seeds are germinated for 1-2 days; sowing and seedling raising are conducted on the seeds with white buds; wherein in the sowing and seedling raising stage, the seedling raising environment temperature is controlled to be 23-25 DEG C, the relative humidity is maintained to be 60%-70%, the white light intensity is set to be 120 mu mol / m < 2 > / s according to the weak light irradiation intensity, the light period is 14 h / 10 h, 100 mu mol / m < 2 > / s red and blue light is supplemented, and the light quality of the red and blue light is 7: 3 or 2: 3. Compared with an existing light supplementing technology, the low-light environment is considered, red light and blue light are supplemented after the low-light environment serves as background light, input of light supplementing light intensity can be reduced in actual application, and input of electric energy is reduced to a certain degree. According to the scheme, the seedling raising effect is obviously improved, and the seedling strengthening index, the whole plant dry weight and the leaf number are obviously increased.

The invention discloses a method for quickly breeding soybeans in a greenhouse, which comprises the following steps of: planting soybean seeds in a pot picking method in the greenhouse, sowing the soybean seeds in planting pots, and planting 4-8 soybean seeds in each pot, and the conditions of the greenhouse are as follows: (1) photoperiod treatment; (2) light quality treatment: putting the seeds into a blue-light LED lamp room after sowing, increasing the proportion of the blue-light wave band of 460-490 nm by 15% under a full-spectrum condition, and transferring the plants into the full-spectrum LED lamp room when the plants grow to a four-leaf stage until the plants are mature; (3) temperature treatment; (4) humidity treatment; (5) CO2 concentration treatment; (6) supplementing water; and (7) post-processing. According to the method, the breeding cycle of four generations of soybeans in one year can be realized by regulating and controlling the aspects of photoperiod, light quality, CO2, temperature, humidity, moisture, post-treatment and the like, and the average single plant breeding quantity is between 30 and 70, so that the breeding cycle can be shortened, and the breeding yield can be increased.

The invention provides a full-color-gamut digital curing illumination method and system, and relates to the technical field of medical illumination, and the method comprises the steps: forming a medical curing light password according to the influence of different illumination parameters on visual and non-visual functions (such as rhythm, emotion, sleep and the like); based on the medical treatment healing light password, developing a digital treatment healing illumination module meeting preset illumination intensity, color temperature range, spectral energy distribution, color rendering and anti-dazzle requirements; performing intelligent regulation and control on a digital healing illumination module according to the scene parameters so as to perform healing illumination on the target user; monitoring the illumination quality of healing illumination, user behaviors and biological indexes in real time, and forming a dynamic healing illumination database according to a monitoring result; and analyzing the healing illumination database, generating a standardized illumination strategy library, and performing scene multiplexing. The illumination quality and the physical and psychological health of the user can be improved, a personalized and standardized illumination strategy can be realized through real-time monitoring and data analysis, and better healing experience is provided for the user.

The invention relates to the technical field of semiconductor display, in particular to a vehicle-mounted high-color-gamut QD-LED backlight display module which further comprises a high-color-gamut QD-LED lamp bead which serves as a lateral light source and is arranged on at least one side edge of a light guide plate. The high-color-gamut QD-LED lamp bead comprises a circuit board and a plurality of LED lamp beads welded on the circuit board, and the LED lamp beads are patch devices packaged by composite luminescent materials of green quantum dots and KSF fluorescent powder. The circuit board and the LED lamp beads on the circuit board are integrally packaged by a silica gel packaging layer, and the silica gel packaging layer is connected with the light guide plate through a light guide protection layer, so that the high-color-gamut QD-LED lamp beads and the light guide plate are integrated. Through multi-dimensional collaborative innovation, the problems of reliability, light quality, mechanical durability and the like are comprehensively solved, a vehicle-mounted display backlight solution which is ultrahigh in color gamut, high in brightness, high in uniformity, high in reliability and long in service life is created, and high commercial value and market prospects are achieved.

The novel wingtip combined navigation lamp for the unmanned aerial vehicle comprises navigation lamp bodies, the navigation lamp bodies are arranged on a left wing and a right wing of the unmanned aerial vehicle correspondingly, each navigation lamp body comprises a lampshade, pressing plates, a shell, a printed board assembly, a cover plate, an electric connector and a light source assembly, the lampshade covers the shell, the pressing plates are arranged above the two ends of the lampshade, and the pressing plates are arranged above the two ends of the lampshade. The lampshade is fixed to the shell through the pressing force of the pressing plate in the vertical direction, the prism structure and the bead face structure are arranged on the surface of the lampshade, and the lampshade, the prism and the bead face are integrally machined, so that integrated design of the lampshade, the prism and the bead face is achieved, compared with the prior art, spatial light distribution better meets the corresponding index requirement, and the light quality is improved. The device has the advantages of being small in size, light in weight, compact in structure and beneficial to small-size integration of products, and technical support is provided for precise light distribution of the combined navigation lamp of the unmanned aerial vehicle.

The utility model provides a beam combining device and an optical system. In the beam combining device, a first light source outputs a first light beam, and a second light source outputs a second light beam; the first focusing module focuses the first light beam and emits the first light beam to the beam combiner module; the second focusing module focuses the second light beam and emits the second light beam to the beam combiner module; the beam combiner module converges the first light beam and the second light beam to the light receiving surface of the light path transmission module. The beam combining device processes a first light beam output by a first light source based on a first focusing module, processes a second light beam output by a second light source based on a second focusing module, and then converges the processed first light beam and second light beam on a light receiving surface of a light path transmission module based on the same beam combiner module. Compared with the prior art, the uniformity of the light source can be guaranteed, the diameter of the light source is kept unchanged, and the beam combining light quality can be improved to a great extent.

An LED lighting device or LED lamp comprising one or more LED packages; and a switch control unit is provided. The switch control unit is configured to operate the one or more LED packages. The switch control unit is in communication with a sensor located in a space, the LED lighting device or LED lamp also being located in the space. The switch control unit is configured to (i) receive a sensor signal from the sensor, (ii) process the sensor signal, (iii) determine an adjustment to the operating light qualities of the LED lighting device or LED lamp based on the processing of the sensor signal and one or more goal light qualities corresponding to the space, and (iv) adjust the operation of the one or more LED packages in accordance with the adjustment.

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 present invention provides a method for detecting the lighting quality in a tunnel, which determines the corresponding relationship between the road surface lighting quality of each lighting section in the tunnel and the illuminance value of the tunnel wall by measurement; calculates the theoretical required value of the road surface lighting quality of each lighting section in the tunnel from the brightness value outside the tunnel, and infers the actual road surface lighting quality value from the measured wall illuminance value according to the corresponding relationship and compares the actual road surface lighting quality value with the theoretical required value of the lighting quality, thereby achieving the purpose of real-time detection of the tunnel lighting quality and statistics on the proportion of lighting quality reaching the standard. The detection method of the present invention is applied, and the effect is: to realize real-time monitoring of the lighting quality of each lighting section, and to evaluate the lighting quality reaching the standard rate of each lighting section. The present invention also discloses a device for detecting the lighting quality in a tunnel, including an outside brightness detection device, an inside illuminance detection device, a lighting quality monitoring system control host, and a background management center server; the device is simple and easy to implement.

The invention discloses an infrared super lens with a moth eye imitating anti-reflection nano structure. The moth-eye anti-reflection metasurface, the metasurface lens and the substrate are all made of silicon materials, and the moth-eye anti-reflection metasurface and the metasurface lens are micro-nano-scale arrays and are located on the two sides of the same substrate respectively. According to the invention, the metasurface is fully utilized to finely and efficiently modulate the phase, amplitude and other characteristics of light waves, the moth-eye metasurface changes the effective refractive index of the surface and reduces the reflectivity of incident light on the silicon surface, the metasurface lens enables the phase distribution to meet the spherical wavefront contour, efficient focusing of emergent beams is realized, and the light quality is improved. All micro-nano structures have the advantage of good thermal stability based on the same substrate material, and anti-reflection and focusing effects are achieved in an extremely thin scale.

The invention relates to the technical field of plant supplementary lighting, in particular to a photo-thermal synergistic supplementary lighting lamp for a rubber forest. The system is formed by cooperative work of a light regulation and control module, a heat regulation and control module and a control module. The light regulation and control module is used for dynamically outputting a composite light source matched with rubber tree photosynthesis spectrum requirements. The heat regulation and control module is used for generating a controllable heat radiation field according to environmental thermodynamic parameters; and the control module carries out nonlinear cooperative control on output parameters of the light regulation and control module and the heat regulation and control module based on the rubber forest microenvironment data, so that the photo-thermal coupling effect optimization is realized. According to the invention, the technical problems of poor spectrum adaptability, lack of thermal radiation regulation and insufficient multi-parameter cooperative control of existing light supplementing equipment are solved. Through collaborative innovation design of the light regulation and control module, the heat regulation and control module, the control module and the energy management module, multi-dimensional dynamic matching of light quality-heat field-environment parameters is achieved, and the photosynthetic efficiency and glue production performance of rubber trees are remarkably improved.

Disclosed in the present invention are a lamplight color temperature adjusting circuit and a lighting apparatus. The lamplight color temperature adjusting circuit comprises a main control module, a first dimming unit, a second dimming unit, and a compensation unit, wherein the first dimming unit is electrically connected to the main control module and is configured to drive a high-color-temperature light source; the second dimming unit is electrically connected to the main control module and is configured to drive a low-color-temperature light source for light mixing with the high-color-temperature light source; and the compensation unit comprises a first compensation driving module, which is electrically connected to the main control module and, on the basis of a control signal from the main control module, controls a compensation light source to perform color temperature compensation. By means of controlling the compensation unit to separately drive and adjust the compensation light source, the lamplight color temperature adjusting circuit of the present embodiment compensates for a color temperature after light from the high-color-temperature light source and light from the low-color-temperature light source are combined, so that the color temperature coordinates after light combination fall on a blackbody locus, reducing color tolerance and improving light quality.

The invention belongs to the technical field of plant factories, and particularly relates to a light environment optimization control method and system and an intelligent illumination regulation and control multi-layer plant factory based on photoelectric agriculture. Light environment optimization control specifically comprises the steps that multi-factor data of a plant growth environment is collected, a photosynthetic rate prediction model based on a least square support vector machine is constructed, and a photosynthetic rate prediction model is constructed; and predicting photosynthetic rate response curves in different light environments. And determining an inflection point of a photosynthetic rate curve through differential operation, and determining an optimal light quality ratio and a light environment regulation strategy based on cost-photosynthetic effect analysis. The factory roof is combined with the photovoltaic panel and the light uniformizing plate, and optimal utilization of natural light and artificial light is achieved. The energy utilization efficiency is improved, the growth efficiency and yield of plants are remarkably improved by precisely regulating and controlling the light environment, and the system is suitable for efficient planting of various plants.

Embodiments of the present invention disclose a display panel and a display device. The display panel includes a display area, at least part of which is a transparent display area. The transparent display area includes multiple sub-areas arranged in an array and having the same shape and area. The sub-areas include adjacent first and second sides. The first side of a sub-area is shared with a side of a sub-area adjacent in a first direction, and the second side is shared with a side of a sub-area adjacent in a second direction. The sub-areas include non-transparent areas and transparent areas. The transparent areas have the same shape. The center of the transparent area is at a distance d1 from the first side of the sub-area, and the center of the transparent area is at a distance d2 from the second side of the sub-area. At least one of d1 and d2 is different in at least two sub-areas. The technical solutions of the embodiments of the present invention can reduce diffraction in the transparent display area, improve the display quality of the transparent display area, or solve the problem of poor light quality received by the under-screen light sensor.

The present invention discloses a method for improving the quality of Millettia reticulata, belonging to the technical field of Millettia reticulata cultivation. It applies a growth regulator in combination with spectral lighting. The growth regulator is methyl jasmonate, with a concentration of 100 - 400 μmol / L. The LED light quality of the spectral lighting is red light and blue light, and the total photon flux density of red light and blue light is 200 μmol / m 2 / s, and the light quality ratio of red light to blue light is 2 - 5:1. The method of the present invention can effectively improve the growth of Millettia reticulata seedlings, significantly increase the contents of the active ingredients total flavonoids, catechins, epicatechins and gallocatechins, especially the improvement effect of catechins is the best. In an embodiment, compared with the blank group, the contents of total flavonoids, catechins, epicatechins and gallocatechins are significantly increased by 83.05%, 314.72%, 81.03% and 179.62% respectively, and the effect is remarkable.

The present application relates to the field of image processing, in particular to a missing risk monitoring system for medical waste refrigerators, comprising a video data acquisition module, a light quality evaluation module, a sensitive factor acquisition module, a gray compensation module and a risk detection module. According to the monitoring video when transferring medical waste, each gray image and template image are obtained; according to the structural richness of each gray image and the average gray value of each differential gray level, the light quality evaluation index of each gray image is obtained; according to the light quality evaluation index of each gray image and adjacent gray image, the sensitive factor of each gray image is obtained, the gray compensation is carried out on each sensitive factor, and the missing risk of each gray image after the gray compensation is completed is detected. The present application can restore the details lost in the image due to light changes, ensure the integrity of the image detail information, and improve the accuracy of missing risk identification.