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540 results about "Illumination angle" patented technology

In computer graphics and geography, the illumination angle of a surface with a light source (such as the Earth's surface and the Sun) is the angle between the inward surface normal and the direction of light. It can also be equivalently described as the angle between the tangent plane of the surface and another plane at right angles to the light rays. This means that the illumination angle of a certain point on Earth's surface is 0° if the Sun is precisely overhead and that it is 90° at sunset or sunrise.

Visual detection method for solar silicon wafer

The invention discloses a solar silicon wafer visual detection method, and particularly relates to the technical field of silicon wafer detection. The method comprises the following steps: acquiring optical images of different incident angles, synchronously acquiring infrared transmission images, performing normalization processing, edge enhancement filtering and self-adaptive threshold segmentation on the acquired multi-angle images, extracting suspected crack areas, and respectively calculating a gray gradient change rate and a stress abnormal degree, so as to obtain a suspected crack area; calculating a crack credibility score according to the gray gradient change rate and the stress abnormal degree through a weighted scoring method, and comparing the crack credibility score with a preset crack detection threshold value to distinguish real hidden cracks and stress pseudo defects; if the credibility score is lower than the threshold value, secondary sampling is carried out by adjusting the illumination angle, and the judgment result is further optimized; according to the method, the false rejection rate caused by lattice stress pseudo defect misjudgment is effectively reduced, meanwhile, missing detection of real subfissures is avoided, and the accuracy, stability and production yield of silicon wafer defect detection are improved, so that the long-term reliability of a photovoltaic module is enhanced.
Owner:THEWAY SHANGHAI INSTR TECH

Sea surface target tracking method and system based on infrared and visible light image fusion

The invention provides a sea surface target tracking method and system based on infrared and visible light image fusion, and relates to the technical field of ocean monitoring, and the method comprises the steps: collecting visible light and infrared image data of a sea surface target; performing feature extraction and fusion through wavelet transform fusion to generate a comprehensive feature map, and performing target recognition on the comprehensive feature map by using a deep learning target detection model; after target recognition, the system calculates the position of a target based on image data and radar data, performs multi-target matching and association through a Hungary algorithm combined with multi-modal features, predicts the position of the target and updates trajectory information in combination with a Kalman filtering or particle filtering algorithm. The infrared camera and the visible light camera carry out dynamic angle adjustment according to the position and the movement track of the target; whether light information correction is carried out or not is judged based on the light correction threshold value, when light information correction is carried out, light information correction features are constructed based on the visible light compensation model and the infrared compensation model through the image data, and information errors caused by the illumination angle are eliminated.
Owner:HARBIN INST OF TECH AT WEIHAI +1

Aluminum alloy round aluminum rod surface defect image super-resolution method

The invention relates to the technical field of metal defect detection, and discloses an aluminum alloy round aluminum rod surface defect image super-resolution method. The method comprises the following steps: acquiring a low-resolution original image sequence of surface defects of the aluminum alloy round aluminum rod, and synchronously acquiring gray value distribution at different illumination angles through a multi-channel optical sensor; constructing a dynamic degradation model according to pixel displacement of adjacent frames in the original image sequence, extracting cross-scale defect features in the original image sequence, and taking output parameters of the dynamic degradation model as spatial constraint conditions of a feature extraction network; and a high-resolution defect image is generated through the multi-stage residual error reconstruction network, the high-resolution image output by the reconstruction network is fed back to the dynamic degradation model, and the frequency domain response coefficient of the spatial fuzzy kernel function is updated to form closed-loop optimization. The identification degree of defect features is improved, and a reliable image data basis is provided for accurate detection of the surface defects of the aluminum alloy round aluminum rod.
Owner:SHANDONG YUANWANG ELECTRICAL TECH CO LTD

Service spacecraft multi-orbit maneuvering strategy approaching observation method based on J2 perturbation compensation

The invention discloses a service spacecraft multi-orbit maneuvering strategy approaching observation method based on J2 perturbation compensation, solves the problem of how to quickly improve orbit maneuvering accuracy, and belongs to the field of service spacecraft multi-orbit maneuvering strategy approaching observation. Comprising the following steps: constructing a motion equation under J2 item perturbation compensation under a target orbit coordinate system; constructing a service spacecraft multi-orbit maneuvering strategy model through the relative motion propagation relational expression and the motion equation; inputting the termination moment position conforming to the termination moment distance constraint into the model to output a single speed increment, and reserving the single speed increment conforming to the termination moment illumination angle constraint and the single speed increment constraint at the same time to obtain a speed increment solution set; constructing a circular region which takes the space target as a center and has a radius meeting a termination moment distance constraint; when the service spacecraft arrives at the circular area at a specified moment, marking the task successfully, and obtaining a service spacecraft multi-orbit maneuvering strategy for approaching observation; according to the invention, accurate and rapid track maneuvering is realized.
Owner:PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV

Walk-behind mower with wide angle illumination

A walk-behind mower has a mower deck, a plurality of wheels, a head, and a plurality of light sources. The wheels are rotatably coupled to the mower deck. The wheels move the walk-behind mower over a support surface in a forward direction and a rearward direction. The head is coupled to the mower deck. The head can store at least one battery pack. The light sources are coupled to at least one of the mower deck and the head. The light sources project light through a continuous illumination angle about the walk-behind mower. The illumination angle extends along an arc from the forward direction toward the rearward direction and is at least 90 degrees.
Owner:MILWAUKEE ELECTRIC TOOL CORP

Face posture recognition method, anti-dazzle lamp regulation and control method, lamp, equipment and medium

The invention discloses a face posture recognition method, an anti-dazzle lamp regulation and control method, a lamp, equipment and a medium, and relates to the technical field of lamp control. According to the method, firstly, face region recognition is performed based on the integral image corresponding to the video image, then the face image is intercepted from the video image according to the recognition result, and then face pose recognition is performed based on the trained CNN model and the trained backbone network model, so that recognition of each face pose in the target scene is realized, and the recognition efficiency is improved. And then the irradiation angle and brightness of the lamp are adjusted based on the recognized face posture, and adaptive adjustment of the glare problem is achieved.
Owner:CHONGQING UNIV

Method and system for identifying internal surface defects of nuclear reactor pressure vessel, computer device, and computer-readable storage medium

The present application discloses a method and system for identifying internal surface defects of a nuclear reactor pressure vessel, a computer device, and a computer-readable storage medium. The method comprises: collecting image data of the surface of a pressure vessel; constructing an illumination angle attention mechanism, using an image in a data set to establish a feature map, and producing a spatial attention map on the basis of a spatial relationship of the feature map; and using the illumination angle attention mechanism to improve a YOLOv5 model, and identifying surface defects of the pressure vessel by means of the improved YOLOv5. The present application has the characteristics of high defect identification efficiency, low missed detection rate, etc. The present application can effectively cope with common problems when defect detection is performed under different illumination conditions. This precise defect localization and identification capability is critical for ensuring safe operation of pressure vessels, particularly during routine maintenance and inspection.
Owner:XIAN THERMAL POWER RES INST CO LTD

Unmanned aerial vehicle illumination control method and system based on three-dimensional model data

The invention relates to an unmanned aerial vehicle illumination control method and system based on three-dimensional model data. The method comprises the steps of obtaining three-dimensional model data, environment perception data and flight positioning data, and analyzing a target scene and an unmanned aerial vehicle illumination demand. And based on the data, planning the flight path of the unmanned aerial vehicle, and generating flight path planning data. And in combination with environmental perception information, performing illumination analysis on the main illumination end, calculating main illumination power density distribution and a main illumination angle, and identifying a main illumination blind area. And for the blind area, light supplement analysis is performed by using environmental perception data, and blind area illumination power density distribution and a blind area illumination angle are calculated. And finally, synthesizing the main illumination data and the blind area light supplementing data to generate illumination control information of the unmanned aerial vehicle. By adopting the method, the illumination strategy can be intelligently adjusted under different environmental conditions, the illumination effect, the illumination precision and the illumination uniformity of the unmanned aerial vehicle can be effectively improved, the energy utilization efficiency is also improved, and unnecessary energy consumption is reduced.
Owner:BEIJING XIJIE TECH CO LTD

Light adjusting method and device, electronic equipment and storage medium

The invention discloses a light adjusting method and device, electronic equipment and a storage medium, and relates to the technical field of vehicles, and the method comprises the steps: obtaining first state data of a passenger in a vehicle, second state data of a reading object, and illumination data of a target position where the passenger in the vehicle is located, namely, the state data of an environment where the passenger is located; calculating according to the obtained data to obtain an optimal illumination angle and illumination intensity at the target position, and determining the light emitting information of each light source in a target position light source array corresponding to the illumination angle and the illumination intensity from a preset mapping relationship between the illumination angle and the illumination intensity and the light emitting information of each light source, light emitting control is conducted on all light sources in the target position light source array on the basis of the light emitting information, so that the light source array emits light meeting the illumination intensity and the illumination angle, and therefore illumination is provided according to the state of passengers in the vehicle.
Owner:BEIJING CO WHEELS TECH CO LTD

Intelligent self-adaptive lighting system based on environment perception and behavior recognition

The invention provides an intelligent self-adaptive lighting system based on environmental perception and behavior recognition, relates to the technical field of self-adaptive lighting control, and aims to determine an illumination perception rule during adaptive adjustment of the brightness of a lighting source in a target area according to a lighting adjacent path and dynamic atmosphere information, perform layered compensation on the illumination perception rule, and improve the brightness of the lighting source in the target area. Obtaining an adaptive compensation strategy when the illumination angle of the illumination light source is adjusted; according to the posture activity index and the behavior response index, determining a state partition constraint when the illumination light source in the target area carries out illumination partition decision making along with the user motion trail, and determining a light color rheological characteristic when the illumination light source carries out color temperature switching according to the state partition constraint; and carrying out self-correction matching on the illumination demand mode in the illumination environment of the target area according to the adaptive compensation strategy and the light color rheological characteristics. According to the invention, linkage self-correction control can be carried out on the illumination mechanism of the illumination light source, so that the real-time response capability of the intelligent illumination system under the driving of complex space behaviors is improved.
Owner:SHENZHEN BIAOMEI LIGHTING DESIGN ENG CO LTD

Lamplight illumination angle intelligent control system and method

The invention belongs to the technical field of intelligent control, and particularly relates to a lamplight illumination angle intelligent control system and method. The problems that an existing lighting strategy is disjointed with user requirements, lighting resources are wasted, and experience is poor are solved. The system constructs a dynamic semantic scene graph through multi-modal perception, identifies a user task intention, generates a parameterized illumination body, drives a multi-degree-of-freedom mechanism to regulate and control a light beam angle, convergence, dispersion and light color, and performs closed-loop correction on an illumination effect. The method can achieve the deep understanding of the environment and the recognition of the task intention, improves the illumination precision and energy efficiency, optimizes the user experience, and guarantees the illumination stability and accuracy.
Owner:GUANGDONG SHUNDE CORSO ELECTRONICS CO LTD

Device for culturing periphyton

The invention relates to the technical field of periphyton incubators, and discloses a device for culturing periphyton, which comprises an incubator body, a control operation panel connected to the top of the incubator body and a culture container connected in the incubator body. Through mutual cooperation of an arc-shaped box, a chain, a chain wheel and a lamp shaft seat, the visible light simulation illumination lamp with the wavelength of 400-700 nm can move and is similar to rising of the sun from low to high and then gradually reduced, so that the illumination position is dynamically changed, a more natural growth environment is simulated, the illumination intensity and the duration time are synchronously controlled, and the illumination effect is improved. Therefore, the proper growth temperature in the incubator is maintained, the change rule of the illumination intensity and the illumination angle in one day is truly represented, artificial stable growth conditions closer to the natural environment are provided for periphyton, and efficient growth and metabolism of periphyton at the proper temperature are promoted.
Owner:NANJING TECH UNIV

Method and system for adjusting and controlling illumination angle of tea table

The invention relates to the technical field of illumination angle adjustment, in particular to a tea table illumination angle adjustment control method and system, and the method comprises the following steps: obtaining optical reflection characteristic data of a desktop area, three-dimensional geometric data of an article and user observation point information, and constructing a space model for illumination evaluation; when it is monitored that the desktop environment changes, the changes include that an object enters an unstable state, whether the illumination state touches a preset judgment threshold value or not is evaluated based on the current light source projection angle, and the judgment threshold value comprises a glare threshold value, an illumination uniformity threshold value and a secondary reflection avoidance threshold value; if any judgment threshold value is touched, re-calculation and adjustment of the current light source projection angle are started; and if any judgment threshold is not touched, the current light source projection angle is maintained. The problems of glare, uneven illumination, secondary reflection and the like are effectively solved, and the visual comfort of a user is improved.
Owner:FOSHAN JULIAN HOME FURNISHING CO LTD

System and method for dual-view quantitative phase imaging and honeycomb artifact removal

The invention relates to a system and a method for dual-view quantitative phase imaging and honeycomb artifact removal based on multi-core optical fiber transmission. The system comprises a light source, a pinhole aperture, a condensing mirror, a spatial light modulator, a mirror, a multi-core optical fiber, an objective lens, a tube lens, a spectroscope, a first CMOS camera and a second CMOS camera. According to the multi-core optical fiber transmission-based system for dual-view quantitative phase imaging and honeycomb artifact removal, the phase distortion of the multi-core optical fiber is corrected through the spatial light modulator, different illumination angles are generated by using the spectroscope, and the transmission characteristics of the multi-core optical fiber are combined, so that the dual-view quantitative phase imaging and honeycomb artifact removal can be realized on the premise of not changing the position of a sample. According to the method, phase information under two different visual angles is rapidly acquired, and then the two groups of data are processed by using the following method, so that three-dimensional reconstruction is realized, and the imaging depth and accuracy are improved.
Owner:SHENZHEN FUCHENGTONG ELECTRONIC TECHNOLOGY CO LTD

Wooden furniture material quality detection method and system for furniture customization

The invention discloses a wooden furniture material quality detection method and system for furniture customization, and relates to the technical field of furniture quality detection.The method comprises the steps that shadow images corresponding to different target detection areas in wooden furniture shot at multiple illumination angles are acquired; based on the shadow change characteristics of the shadow images at different illumination angles, screening out a first shadow region with an abnormal shadow from each shadow image; based on the light and shadow feature difference of each part of shadow in the first shadow area, calculating to obtain the light and shadow matching degree of the target detection area, obtaining height point cloud data corresponding to the first shadow area, and based on the height difference of each data point in the height point cloud data, calculating to obtain the three-dimensional height dispersion of the target detection area; and performing quality evaluation on the wooden furniture based on the three-dimensional height dispersion and the light and shadow matching degree to obtain a quality evaluation result. The technical effect of improving the detection precision is achieved.
Owner:SHANGHAI KAICHENG FURNITURE CO LTD

Low-noise speckle interference system and method based on spatial light modulator

The invention provides a low-noise speckle interference system and method based on a spatial light modulator, and relates to the technical field of speckle interference, and the system comprises a laser, a first beam splitter prism and an imaging element. A laser beam emitted by the laser is divided into transmission light and reflected light by the beam splitter prism I; after being reflected by the third beam splitter prism, part of the transmission light is irradiated on an imaging element as reference light; part of the reflected light sequentially passes through a linear polaroid and a half-wave plate, is modulated by a spatial light modulator assembly, irradiates a fourth beam splitter prism, and is reflected to the surface of a measured object to generate diffuse reflection, so that slow-reflection light is obtained; according to the speckle interference system, object light is modulated by using a spatial light modulator assembly, so that emergent light modulated by the spatial light modulator assembly irradiates a measured object at various illumination angles, mutually independent speckle fields are formed on a target surface of an imaging element, speckle decorrelation noise can be effectively inhibited after multiple times of measurement and superposition, and the measurement accuracy is improved. And the accuracy of subsequent measurement results is improved.
Owner:HEFEI UNIV OF TECH

Methods And Systems For Spectral Measurements Based On Perturbed Spectra

Methods and systems for measuring structural parameters characterizing a measurement target based on changes in measurement signal values due to one or more perturbations of an effective illumination angle of incidence on the measurement target are presented herein. In some examples, a measurement model estimates values of the structural parameters based on the changes in measurement signal values. In some examples, at least one derivative of detected measurement signals with respect to effective illumination angle is determined, and values of the structural parameters are estimated based on the at least one derivative. In some examples, values of one or more tunable measurement model parameters are estimated based on at least one derivative. In some examples, the fitting performance of a measurement model is quantified based on measurements performed at both unperturbed and perturbed orientations of a structure under measurement with respect to the illumination beam.
Owner:KLA CORP

Visual surface detection device for steel belt

The invention relates to the technical field of visual detection, and discloses a steel belt visual surface detection device which comprises a workbench. In the detection process, that is, when the CCD camera moves horizontally, the light supplementing lamp irradiates at a positive light angle perpendicular to the surface of the steel strip, the mode can highlight flatness defects and reduce reflection interference, and the method is suitable for detecting surface fluctuation defects; when the camera reaches the left and right limit positions and returns, the mechanical structure is linked to enable the reflecting cover to rotate, and the light supplementing lamp is switched to irradiate at an inclined side light angle, so that the shadow contrast ratio of the edge concave-convex defect is enhanced, and the identification precision of the microdefect is improved; and intelligent switching between the positive light and the side light is realized through cooperation of mechanical structures such as the ejector rod, the ball and the compression spring, the illumination angle can be automatically adjusted according to the position of the camera without an electronic sensor, the system structure is simplified, the cost is reduced, and meanwhile, the reliability is improved.
Owner:WUXI HUANSHENG METAL PRODS

A fishway light illumination fish luring test device

This invention discloses a fishway illumination-based fish-attracting experimental device, belonging to the field of fish-attracting experimental technology. It includes: an experimental water tank, positioned above a reservoir, divided into an upstream, midstream, and downstream section, with an adaptation zone in the downstream section; a support frame erected above the midstream section, covered with a black cloth; and an illumination mechanism located on the upper wall of the midstream section, comprising LED lights and connecting components. Through the structural design of the connecting components, this invention allows for multi-dimensional flexible adjustment of the LED lights' horizontal position, illumination angle, and vertical height, breaking the limitations of fixed illumination modes in traditional experimental devices. The position and angle of the illumination can be adjusted according to experimental needs, and the adjustment operation is simple and convenient. It enables multi-parameter illumination research, allowing for quantitative study of the impact of different illumination conditions on fish migration behavior, meeting the needs of different experimental scenarios, and providing support for personalized fish-attracting research.
Owner:HUADIAN JINSHAJIANG UPSTREAM HYDROPOWER DEV CO LTD

Method and apparatus for illuminating a sample plane with wide-field illumination

UndeterminedDE102025107561A1Light beamMicroscope objective
The invention relates to a method for illuminating a sample plane (17) with wide-field illumination and comprises the steps of providing an illumination beam; guiding the illumination beam along an illumination beam path (3); focusing the illumination beam into an objective pupil (13) of an illumination objective (10) and generating an illumination pattern of wide-field illumination in the sample plane (17), wherein at least one optical element of the illumination beam path is moved in order to repeatedly change the formation of the illumination pattern in the sample plane (17) for the purpose of homogenizing the wide-field illumination.The invention is characterized in that a first scanner (7) is used as an optical element for generating different configurations of the illumination pattern, and the first scanner (7) oscillates in at least one direction around a set position in order to repeatedly change the location or illumination angle of the illumination pattern in the sample plane (17) for the purpose of homogenization. The invention also relates to a device for illuminating a sample plane (17) with wide-field illumination and a microscope (1).
Owner:CARL ZEISS MICROSCOPY GMBH

Illumination adjustment method, readable storage medium and electronic equipment

The invention relates to the technical field of automatic control, and discloses an illumination adjustment method, a readable storage medium and electronic equipment. According to the method, a control device can dynamically adjust operation parameters of at least one smart home device related to the illumination degree in a room according to the position of a user in the room, such as the luminance, the luminous intensity, the color temperature and the illumination angle of an illumination device, the opening and closing degree of a smart curtain and the opening and closing degree of a smart window; the light transmittance of a light-transmitting medium of the intelligent window is adjusted until the illumination parameter of the position where the user is located is within the illumination parameter interval corresponding to the application scene where the user is located. On the basis, the illumination parameter of the position where the user is located is always kept in the illumination parameter interval corresponding to the application scene where the user is located, and the user experience is improved.
Owner:HUAWEI TECH CO LTD

Multiangular dynamic imaging system and method for measuring and evaluating ovds

A Multi-Angle Dynamic Image system provides multi-angle observation capabilities comprising lamps strategically positioned to obtain high quality images of the security documents or items under analysis, to obtain images with variations in the observation angle of the security document or item under study. The system includes a box platform for placing the security document or item thereupon, the box platform changes its orientation, allowing the system to capture the variations in color and structure as the orientation and the angles of the observation and illumination change. The system also includes a high-resolution linear camera to capture the intricate details while avoiding distortion and parallax issues. The system also includes a computer configured to run algorithms to process image acquisition data for a complete set of observation angles, to pre-process image acquisition data including crop and image standardization, to calculate differences between adjacent angle images, eliminate noise, to calculate a total optical flow using the images at different angles and their differences to generate the Dynamic Images vectorial field, one per orientation, and the Dynamic Map, a heat map generated using the magnitude from the Dynamic Image vectorial field, and calculate from the Dynamic Image the different parameters associated with dynamic properties of the OVD.
Owner:GONZALEZ-CANDELA ERNESTO

Rotary adjusting assembly, spotlight and lighting system

The invention provides a rotation adjusting assembly, a spotlight and a lighting system.The rotation adjusting assembly comprises a lamp body, a lamp holder assembly, an axis bolt, a damping piece and a guide bolt, the lamp body is provided with a cavity, a first connecting hole is formed in the wall of the lamp body, the lamp holder assembly is provided with a connecting arm, and the connecting arm is inserted into the cavity from the upper side of the lamp body; a second connecting hole matched with the first connecting hole is formed in the connecting arm, and the axis bolt is connected with the first connecting hole and the second connecting hole; an arc-shaped groove is further formed in the wall of the lamp body, the damping piece is installed at the arc-shaped groove, a third connecting hole is formed in the arc-shaped groove of the connecting arm, the guide bolt penetrates through the arc-shaped groove and then is connected with the third connecting hole, the head of the guide bolt makes contact with the damping piece, and the guide bolt can move in the arc-shaped groove around the axis bolt along with the connecting arm. The lighting system comprises the spotlight, the spotlight comprises the rotation adjusting assembly, and the rotation adjusting assembly can ensure that the lamp holder assembly can smoothly rotate relative to the lamp body and is stably located at the set lighting angle.
Owner:HUIZHOU NVC OPTOELECTRONICS TECH CO LTD

Yard lamp capable of adjusting irradiation direction

The utility model provides a yard lamp capable of adjusting the irradiation direction, and relates to the technical field of yard lamps, the yard lamp comprises a yard lamp main body and a working mechanism, one side of the yard lamp main body is provided with a connection fixing seat, the working mechanism is installed on the outer side of the connection fixing seat, the working mechanism comprises a supporting assembly, and through the arrangement of the working mechanism, the illumination direction of the yard lamp can be adjusted. When the irradiation angle of the garden lamp needs to be adjusted, the screw can be loosened firstly, after the screw is loosened, the support can be far away from the shell, the support fixing teeth are separated from the shell fixing teeth, the shell can rotate freely, and therefore the irradiation direction of the lamp is adjusted, and after the needed angle is adjusted, the screw is tightened again, the support is pressed to be close to the shell. The bracket fixing teeth are meshed with the shell fixing teeth, so that the angle of the shell is fixed, and in the whole process, the bracket rotating shaft and the shell rotating hole are always kept in an assembling state, so that the stable rotation and fixation of the shell are ensured, and the garden lamp can irradiate at different angles.
Owner:TORSHARE

Folding lamp

ActiveCN222578131UVarious usage statesAdjustable lighting angleLight source combinationsLighting support devicesEngineeringMaterials science
The utility model discloses a folding lamp which comprises a first lamp body and a second lamp body, a first lighting assembly is arranged on the first lamp body, and a second lighting assembly is arranged on the second lamp body. One end of the first lamp body is rotatably connected with one end of the second lamp body through a rotating shaft structure, so that the relative position of the first lamp body and the second lamp body is adjustable, and the light emitting range of the first lamp body and the light emitting range of the second lamp body are adjustable. The first lamp body and the second lamp body can be relatively and rotatably connected through the rotating shaft structure, the first lamp body and / or the second lamp body can be relatively unfolded or relatively folded, the use states are diversified, the illumination angle is adjustable, the applicability is better, meanwhile, compared with single-face illumination, the illumination space is wider, the applicability is better, and the illumination effect is better. And different lighting areas can be met.
Owner:SHENZHEN TOPBAND CO LTD

Photovoltaic power generation panel supporting device facilitating angle adjustment

The invention relates to the technical field of photovoltaic power generation panels, and discloses a photovoltaic power generation panel supporting device convenient for angle adjustment, which comprises a base, the bottom of the base is fixedly connected with a protective cover, the inner wall of the protective cover is fixedly connected with a motor, the output end of the motor is fixedly connected with a reciprocating screw rod, and the circumferential surface of the reciprocating screw rod is fixedly connected with a rotating block. And the front part of the rotating block is fixedly connected with a connecting column I. According to the invention, the photovoltaic solar panel can rotate according to the position change of solar rays, the illumination angle can be optimized, the sunlight can be ensured to be vertically or approximately vertically irradiated to the surface of the photovoltaic panel, the sunlight can be absorbed to the maximum extent, and the light energy absorption of the photovoltaic power generation panel can be improved; the photovoltaic conversion efficiency of the photovoltaic panel can be maximized, the use efficiency of the device is improved, and the device can adapt to sunlight perpendicular incidence angles in different regions.
Owner:CHENYANG JIUKE ELECTRIC POWER TECHNOLOGY CO LTD

Wide-narrow row cultivation method for corn in fruit forest

The invention belongs to the technical field of crop cultivation, and particularly relates to a wide-narrow-row cultivation method for corn in a fruit forest. Wide-narrow row configuration is carried out according to environment characteristics such as illumination angles and illumination duration between fruit-bearing forests, so that the illumination duration is prolonged while the illumination angles are radiated on canopy leaves of corn plants. The planting density of the corn is reasonably set on the basis of a wide-narrow row planting mode, so that the air permeability and photosynthesis of crops in the fruit-bearing forest can be changed, the marginal effect of crop groups is reduced, and the biological competition is reduced, thereby effectively improving the yield and nutritional quality of the corn, and particularly realizing high quality and high yield of the silage corn in the walnut forest.
Owner:XINJIANG AGRI UNIV +1

Accurate raman spectroscopy

An optical measurement system, the optical measurement system comprises optics, wherein the optics include a collection path and an illumination path and an objective lens. The optics is configured to acquire Raman spectrums of one or more structural elements located at a measurement site of the sample while being set-up to apply one or more optics parameters that comprise an illumination angle out of a set of multiple illumination angles that correspond to a numerical aperture of the objective lens. Each of the one or more structural elements has a dimension that ranges between one tenth of nanometer to one hundred microns; an optical spectrometer; a Raman detector that is downstream to the optical spectrometer; and a control unit that is configured to determine an expected radiation pattern to be detected by the Raman detector when the optics are set-up to apply the one or more optics parameters.
Owner:NOVA MEASURING INSTR LTD

Folding photovoltaic panel support with adjustable elevation angle

The utility model relates to a folding photovoltaic panel support capable of adjusting an illumination angle. The folding photovoltaic panel support comprises a base, a first supporting plate, a second supporting plate, a first supporting assembly, a second supporting assembly, a first adjusting assembly and a second adjusting assembly. The lower end of the first supporting plate is hinged to the base. The lower end of the second supporting plate is hinged to the upper end of the first supporting plate. The lower end of the first supporting assembly is hinged to the base, and the upper end is slidably connected to the first supporting plate. The lower end of the second supporting assembly is hinged to the base, and the upper end is slidably connected to the second supporting plate. A first adjusting rod of the first adjusting assembly is in transmission connection with the first supporting plate through a first transmission wheel set. A second adjusting rod of the second adjusting assembly is in transmission connection with the second supporting plate through a second transmission wheel set. The first adjusting rod drives the first supporting plate to rotate relative to the base, the second adjusting rod drives the first supporting plate to rotate relative to the second supporting plate, and elevation angle adjustment and folding are achieved.
Owner:JIMEI UNIV +1

Non-sun-synchronous orbit satellite energy optimal attitude sailboard control method and system

The invention provides a non-sun-synchronous orbit satellite energy optimal attitude sailboard control method and system. The method comprises the steps that S1, the illumination angle of each orbit in the satellite life period is calculated according to collected orbit parameters; s2, calculating the illumination area half angle and the illumination duration under the illumination angle of each track; s3, calculating the illumination energy of each track of the sailboard driving shaft under the combination of different swinging positions and different flight attitudes of the satellite; s4, comparing illumination energy of each track, and preferably selecting a combination of a posture with the maximum energy in each period and a sailboard driving position; and S5, obtaining a control strategy for the attitude of all orbital circles of satellites and the position of a sailboard driving shaft in the whole life period of the satellites. By comparing various feasible in-orbit attitude and sailboard position combinations, a sailboard position and attitude control method with optimal energy can be obtained through optimization, the in-orbit receiving energy of a two-dimensional driving solar sailboard satellite is improved, the required sailboard area is reduced under the same power consumption requirement, and the weight of the whole satellite is reduced.
Owner:SHANGHAI SATELLITE ENG INST