368 results about "Daytime" patented technology

The invention relates to a preparation method of a coaxial cellulose-based aerogel fiber fabric for daytime radiation refrigeration, which is characterized in that coaxial fibers take pure cellulose as a core, a skin layer comprises hollow silicon dioxide and low-concentration cellulose, and the hollow silicon dioxide is uniformly dispersed in the cellulose; the preparation method comprises the following specific steps: S1, preparing hollow silicon dioxide with an adjustable particle size; s2, preparing a hollow silicon dioxide / cellulose mixed spinning solution; s3, dissolving cellulose; s4, carrying out coaxial wet spinning; s5, carrying out multi-step solvent replacement; s6, performing continuous normal-pressure drying; s7, weaving fibers; the woven aerogel fiber fabric can effectively scatter sunlight, and the solar reflectivity (gt; 92%), and the emissivity (gt; 96%); the preparation method is green and environment-friendly, the operation is simple, the continuous and large-scale production of the cellulose-based aerogel fiber can be realized, and the prepared coaxial aerogel fiber fabric can show excellent radiation refrigeration performance in the daytime.

The invention belongs to the technical field of water desalination, and particularly relates to a bionic aloe evaporation and capture integrated all-weather water collecting device and a manufacturing method. The water collecting device comprises a base and a plurality of bionic units arranged on the base, and the bionic units are bionic aloe trees; the base is circular, the bionic units are circumferentially distributed around the circle center of the base, and at least two layers of bionic units are arranged; and the water collecting device is prepared from a hydrogel material. The base part of the device can utilize the photo-thermal characteristic of hydrogel in the daytime, and seawater evaporation can be carried out through sunlight; at night, mist catching can be carried out through the tip effect of the aloe form of the bionic unit, and water vapor in the air is collected. The whole device can play a role in the whole day and is not limited by the difference between the day and the night, and the fresh water collection efficiency is greatly improved.

The invention provides a ship image target detection method, system and device based on infrared and visible light and a medium, and belongs to the technical field of ship image detection. Infrared and visible light ship images are input into a YOLOv10 model; separating a kernel attention mechanism to extract texture and contour features contained in the infrared and visible light ship images; calculating an attention weight by using a multi-scale expansion attention mechanism, and paying attention to ship surrounding environment information in the infrared and visible light ship images; and analyzing and detecting target information in the infrared and visible light ship image based on the loss function of the bounding box shape, and outputting and displaying the target information. The infrared image and the visible light image are processed at the same time, and effective target information can be provided at night or under complex meteorological conditions based on the sensitivity of the infrared image to the temperature; the visible light image provides texture and color information in the daytime or under the condition of good illumination, and the accuracy and robustness of detection are improved.

The invention discloses an energy-saving effect evaluation method and system for a high-rise building, particularly relates to the technical field of building energy conservation, and is used for solving the problems that in the prior art, a dynamic heat transfer delay effect is caused by neglecting thermal inertia of a glass curtain wall, and an energy-saving effect evaluation result is not accurate. The method comprises the following steps: acquiring outer surface temperature time sequence data of a target building glass curtain wall under various weather types and corresponding indoor air conditioner refrigeration energy consumption data; time sequence offsets of a daytime temperature peak value and a night energy consumption peak value are extracted period by period, and dynamic delay duration is calculated in combination with material heat transfer attenuation characteristics; night energy consumption data conforming to a stable delay threshold value are screened, and additional refrigeration energy consumption caused by daytime heat storage is quantified based on the delay time period weight; and finally, through dynamic weighted superposition of the daytime and night energy consumption data, an energy-saving evaluation result containing a heat transfer delay effect is generated. The evaluation deviation caused by night hidden load omission is avoided, and the reliability of the evaluation result and the engineering guidance value are improved.

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

We present a ground-based laser system for searching, ranging, and tracking that actively illuminates small resident space objects (RSOs) in low Earth orbit (LEO) and observes position and transit-time of reflections, enabling orbital custody of most one-to-few centimeter-sized objects. A diode-pumped alkali laser (DPAL) augmented with mode-locking and Q-switching serves as an illuminator and offers exceptionally high spectral brightness due to its output beam's sub-nanosecond pulse duration and picometer-level spectral linewidth. Kilohertz fast-rastering enables interrogations of distinct few-meter-sized sky-patches at megahertz rates. Paired on the observation side with one or more telescopes outfitted with Faraday anomalous dispersion optical filters (FADOFs), image intensifiers, multi-pixel arrays, and nanosecond timing, the combined system could offer nearly background-free discoveries of RSOs every hour, even during daytime. Periodically re-flashing previously discovered objects to maintain orbit custody expends only a small fraction of total observing time.

The invention provides a radiation refrigeration plate combining a sky radiation refrigeration material and a plate heat exchanger, and relates to the technical field of refrigeration, the radiation refrigeration plate comprises a sky radiation refrigeration material layer, a plate heat exchanger assembly, a fan cover layer and a heat insulation material layer, the sky radiation refrigeration material layer has high reflectivity in a solar spectrum wave band and has high emissivity in an atmospheric window wave band, and the plate heat exchanger assembly has high reflectivity in a heat insulation material layer; and heat can be efficiently radiated to the outer space. The plate heat exchanger assembly comprises an enhanced heat exchange tube and a nanofluid, and the nanofluid is filled in the enhanced heat exchange tube and used for heat transfer and transport capacity and enhancing the heat exchange effect. And the fan cover covers the sky radiation refrigeration material. The heat insulation material layer is laid on the portion, except the top face, of the radiation refrigeration plate so as to reduce heat loss of the system to the surrounding environment, and the refrigeration effect is guaranteed. By means of the structure, working modes in the daytime and at night are achieved, the heat transfer efficiency of the system is greatly improved, energy consumption is reduced, and the efficient radiation refrigeration effect of all-weather continuous operation at the temperature lower than the environment temperature is achieved.

The invention discloses a photovoltaic energy storage and cooling coupled system and method based on a copper-based composite phase change material. A power generation module, a cooling energy storage module, an energy conversion module and the like are included. In the daytime, the solar photovoltaic panel emits heat, and the copper-based composite phase change material absorbs heat, stores energy and cools the photovoltaic panel; at night, the phase change material releases heat, and the thermoelectric material converts heat energy into electric energy. The system uses a DDPG algorithm of deep reinforcement learning to optimize operation. The state space comprises parameters such as the temperature of the solar photovoltaic panel and the temperature of the phase-change material, and the action space relates to operations such as control of cooling energy storage and energy conversion. The reward function is designed in multiple aspects of comprehensive efficiency, energy storage, electric energy output and stability. By constructing a strategy network and a value network, the system can make decisions according to environmental changes. And extracting data from the experience playback buffer area to update network parameters so as to enable the system to perform self-adaptive adjustment. The system not only solves the problems of high temperature of the photovoltaic panel and power generation at night, but also improves the energy utilization efficiency by using an algorithm, and the performance is far better than that of a traditional photovoltaic system.

The invention discloses a multi-energy complementary coordination control method for water, wind, light, hydrogen and natural gas, relates to the technical field of energy coordination control, and solves the technical problem that coordination of the overall power generation efficiency and the overall power generation capacity is abnormal due to the fact that energy is not scientifically coordinated for power generation. The power generation efficiency is calculated through the comprehensive energy model, the electric power balance constraint is judged, signals are generated in time, the accuracy and timeliness of energy state evaluation are greatly improved, power utilization peak periods are subdivided and coordinated according to characteristics, energy is selected according to energy storage in the daytime to guarantee supply, power is distributed through an optimization algorithm at night, cost is reduced, efficiency is improved, and the scheduling mode is innovated. Then accurately calculating the difference between the generating capacity and the load capacity in a normal electricity utilization period, storing residual electricity to produce hydrogen, and enhancing the flexibility and the energy storage capability of the system; and finally, scientifically screening adjustable energy, distributing the electric quantity to be coordinated, calculating the adjustment efficiency, excavating the potential of renewable energy and improving the contribution degree of the renewable energy in the system when the power generation efficiency is insufficient.

The invention discloses a night vehicle track identification method, which comprises the following steps: preprocessing night traffic video data to obtain multiple frames of first night images; filtering the first night image to obtain a second night image including a mobile brightness area; constructing a parameter matrix for converting a two-dimensional matrix frame of the daytime double vehicle lamps into three-dimensional coordinates; constructing a plurality of two-dimensional pre-selection frames containing bboxes in the second night image according to the bbox sizes of the double vehicle lamps in the daytime of the vehicle; converting the bbox center point in the two-dimensional preselected frame into a frame center point under a three-dimensional coordinate system through a parameter matrix; and carrying out track similarity matching on the obtained frame center point to remove ground reflection data. The method has the advantages that the method does not depend on a deep learning model, the problem of feature extraction failure caused by insufficient illumination at night is avoided, stable operation can still be achieved in extreme scenes such as all-black night high-speed scenes, and the algorithm reliability is remarkably improved.

The invention provides a rotating device of a photovoltaic power generation panel and a photovoltaic power generation system. The rotating device is used for solving the problem that the photovoltaic power generation panel cannot directly face the sun all the time in the prior art. Comprising a mounting base, a first rotating module, a second rotating module and a third rotating module; on one hand, the inclination angle of the photovoltaic power generation panel relative to the mounting base in the length direction is adjusted through the first angle adjusting mechanism, so that the photovoltaic power generation panel can always face the sun in the daytime; and on the other hand, the first rotating module drives the photovoltaic power generation panel to rotate relative to the mounting base, and the third rotating module adjusts the inclination angle of the width direction of the photovoltaic power generation panel relative to the mounting base, so that the photovoltaic power generation panel adapts to direct solar radiation points in different seasons, and it is ensured that the efficiency of the photovoltaic power generation system can be maximized.

The invention relates to the field of household appliances, and provides an air conditioner intelligent control method and device.The method comprises the steps that based on a refrigeration mode, whether the set temperature of an air conditioner is larger than a first temperature threshold value or not, whether the humidity is larger than a first humidity threshold value or not, whether the air volume exceeds a first air volume threshold value or not and whether sunlight exceeds a first sunlight threshold value or not are judged; judging whether the sunshine corresponding time is daytime or not so as to determine a corresponding first temperature correction value; based on the heating mode, judging whether the set temperature of the air conditioner is smaller than a second temperature threshold value or not, judging whether the humidity is smaller than a second humidity threshold value or not, judging whether the sunlight exceeds a second sunlight threshold value or not and judging whether the time corresponding to the sunlight is daytime or not so as to determine a corresponding first temperature correction value; and correcting the set temperature of the air conditioner by using the first temperature correction value. The defect that the comfort is poor due to the fact that automatic control cannot adapt to different environments is overcome, the temperature of the air conditioner is automatically adjusted, and the comfort is improved.

The utility model discloses a full-automatic alignment crane pipe system for loading and unloading liquid, which comprises an automatic alignment crane pipe, the lower end of the automatic alignment crane pipe is fixedly connected with a mounting platform, the upper end of the mounting platform is fixedly connected with a control cabinet, and one side of the mounting platform is provided with a tank car; the system is high in automation degree, high in universality, easy and convenient to operate and low in cost, the labor intensity of operators is greatly reduced, the crane pipe butt joint precision and efficiency are improved, and the safety of production operation is also improved by reducing manual intervention; the laser distance measuring sensor is mature in technology, stable in performance, basically not affected by light rays and capable of working in the daytime and at night. As the sensor moves along with the crane pipe, the whole scheme is compact in structure and convenient to install, no additional auxiliary structure is arranged outside the crane pipe, a camera support does not need to be erected in high altitude independently, and occupied space is small.

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.

The present invention relates to the technical field of solar-powered seawater desalination. Specifically disclosed are an all-day solar-powered seawater desalination device and method. In the present invention, by means of a prepared composite hydrogel evaporator, water in seawater can be evaporated into water vapor and the water vapor undergoes condensation to become freshwater. By combining solar energy and a long-afterglow noctilucent device, evaporation occurs in the daytime by means of the composite hydrogel evaporator under solar irradiation, and the evaporation process continues at night by means of light energy released by a long-afterglow noctilucent device, so that seawater can be efficiently evaporated both in the daytime and at night, thus achieving continuous seawater desalination. The present invention can realize continuous and efficient evaporation of seawater all day, thereby improving the freshwater yield, achieves efficient utilization of energy by means of dual energy excitation, and uses a low energy consumption and environmentally friendly method to solve the problem of shortage of freshwater resources.

The invention discloses a soilless culture landscape frame and a soilless culture system, the structure main body of the soilless culture landscape frame comprises a culture frame, a culture groove, a water circulation system and a solar power generation assembly, and the culture frame is also provided with a rotating mechanism for the culture groove to rotate relative to the culture frame; the water circulation system is used for continuously and circularly replacing water liquid in the cultivation tank through a pipeline to keep a nutrient solution clean and sufficient nutrient substances, the solar power generation assembly generates power in the daytime with illumination and provides electric energy for all the power utilization units, and all the power utilization units are turned off without electricity after no power generation amount exists at night; according to the soilless culture landscape system, solar energy is used as energy supply, the cultivation grooves are driven to be relatively staggered, limited space is fully utilized, water is supplied in a water circulation mode to supplement nutrition, impurities such as eggs in the water cultivation grooves can be cleaned, and the problems of plant diseases and breeding of a large number of mosquitoes can be solved.

A space surveillance method for detecting space objects in orbit around the Earth in images captured during the daytime, the method including the following steps: capturing a plurality of infrared images of the daytime sky using a camera including at least one infrared sensor, detecting space objects in orbit around the Earth on the basis of the images, the detection of bright spots being implemented by a deep-learning artificial intelligence system, and identifying each object detected from a catalogue of known space objects in orbit around the Earth.

The invention belongs to the technical field of water ecological restoration, and particularly relates to a photocatalysis-biological membrane synergistic type ecological floating bed system based on solar energy driving and application of the photocatalysis-biological membrane synergistic type ecological floating bed system. The ecological floating bed system comprises a floating bed module, a biofilm carrier module, a photocatalysis module, an aeration module and a power supply module. The carbon fiber substrate, the photocatalyst and the UV-LED lamp irradiation structure are adopted, all-day work is achieved through sunlight in the daytime and UV-LED lamps at night, the photocatalyst loaded on the carbon fiber substrate is activated, oxidation groups are generated, degradation of organic pollutants is promoted, algae are efficiently controlled, and pollutants such as algal toxin are degraded. Oxygen supply of the aeration module is enhanced, and the biological membrane nitration reaction is promoted. The composite filler in the planting basket adopts the layout of ceramsite-volcanic rock-manganese ore, so that the functions of physical adsorption, ion exchange and electron transfer are synchronously realized; after the composite filler adsorbs pollutants, in-situ regeneration can be realized through aeration disturbance and microbial metabolism; all the modules cooperate to improve the pollutant removal efficiency.

A method for improving human circadian health and protecting the eyes from high-energy visible blue light while performing activities during daytime and nighttime hours wherein an eyewear device is selected and positioned in front of the eyes of a person such that the lenses of the eyewear device substantially filter the light received by the eyes. In some variations, the lenses of the selected eyewear device for use during daytime hours provide eye protection from high-energy visible blue light and provide a transmittance of circadian blue light that is between 100 percent to 150 percent relative to the luminous transmittance of the lenses. In some variations, the lenses of the selected eyewear device for use during nighttime hours provide a transmittance of circadian blue light that is less than 40 percent, or less than 25 percent, or less than 15 percent relative to the luminous transmittance of the lenses.

The invention discloses a space-time analysis method and device for an urban thermal environment, relates to the field of urban thermal environment space-time change and driving mechanism research, and aims to solve the problem of poor accuracy of deducing a dynamic evolution rule of the urban thermal environment in the prior art. The method comprises the following steps: acquiring target surface temperature data and human activity data of a target city, and based on the target surface temperature data, performing regional division on the target city according to a preset thermal environment division rule to obtain a plurality of target islands for representing temporal and spatial change conditions of the target city in daytime and night thermal environments; the surface temperature grades of the target islands in the plurality of target islands are different; further determining human activity intensity index features according to the human activity data; and finally, based on the target surface temperature data, the human activity intensity index characteristics and the plurality of target islands, determining a space-time relationship between the human activity and the target surface temperature data. And the accuracy of deducing the dynamic evolution rule of the urban thermal environment is improved.

The invention discloses a passive radiation-evaporative cooling composite coating and a preparation method thereof. The passive radiation-evaporative cooling composite coating comprises a radiation cooling film on the upper layer and hygroscopic hydrogel on the lower layer. The radiation cooling layer with high sunlight reflectivity and high and medium infrared emissivity provides all-weather radiation cooling and protects the hydrogel on the lower layer from direct solar radiation; and the hydrogel can be evaporated and cooled in the daytime and can absorb moisture at night to realize self-regeneration. The invention has the advantages of low cost of required raw materials, simple preparation and large-scale production. The prepared double-layer cooling material has excellent and adjustable optical properties, the temperature of the double-layer cooling material is reduced by more than 15 DEG C under the direct irradiation of sunlight in the daytime, and meanwhile, the double-layer cooling material has a hydrophobic surface. As a refrigeration technology without power consumption and emission, the method is expected to reduce energy consumption and carbon emission of traditional refrigeration, and can be widely applied to spontaneous cooling of the surfaces of devices and facilities.

The invention discloses a polar region daytime sea fog / low cloud detection method and device based on multi-source polar orbit satellites and a medium. The method comprises the steps that remote sensing image data collected by the multi-source polar orbit satellites are acquired and preprocessed; calculating a sea surface identification index by using data of two preset wave bands in the preprocessed remote sensing image data, and jointly removing areas related to seawater and sea ice / snow in the preprocessed remote sensing image data according to the sea surface identification index and near-infrared wave band reflectivity data in the remote sensing image data; for each pixel of a third preset wave band in the remote sensing image data from which the seawater, the sea ice and the snow are removed, calculating a gray-level co-occurrence matrix of the pixels, and counting a plurality of texture features based on the gray-level co-occurrence matrix; and inputting the statistical texture feature values corresponding to the remote sensing images corresponding to all polar orbit satellites into the trained random forest model, identifying and removing medium and high clouds in the random forest model, and obtaining sea fog / low clouds as the remainder. The influence of satellite difference and solar altitude angle change on the method is small.

Digital daytime measurement in the sun light. 1. Place a bottle in the sunlight on the equal surface without cap so that sunlight falls on the bottle top and the reflects inside and visible outside the bottle which is measured on the digital scale drawn on the bottle. 2. Place a cup of water below the bottle to measure the level of the surface so as to be equal to the water level so that sunlight falls directly on the top of the bottle. 3. The sun reflects in the form of curve line inside the bottle and visible outside, the centre of the curve line is considered as the point of time measurement. 4. Time measurements changes as per the sun moments in the day time. 5. To ascertain accurate digital real time in the areas of academic education, signal systems, time management, to ascertain universality with time and related objectives concerning to global warming, radiation, health and utility. a battle placed in the sun tight on the equal surface without cap so that sunlight fails on the bottle top and refectlects inside and visible out side the: bottle which is measured on the digital scale. Formula (I) curve line showing the image of sunglight centre of the bottom considered as point of time measurement. Formula (II) curve line showing the image of sunlight, centre of the bottom considered as point of time measurement. place a cup of water below the bottle to measure the equal level of the surface.

This aims to improve the accuracy of image enhancement in scenes where it is difficult to prepare training data for a model that enhances image quality based on the characteristics of the subject. [Solution] First, a noise-free image taken during the daytime that includes a moving object is acquired as the first base image. Then, a style transfer model is acquired by learning to transform an image that does not include a moving object but was taken during the daytime and is noise-free into an image taken at night. Next, a pseudo-inference image that includes a moving object and was taken at night and is noise-free is generated using the first base image and the style transfer model. Finally, the generated pseudo-inference image is used as the ground truth image to train a denoising model.

The invention discloses a large-view-field compound eye telescopic system suitable for daytime observation, and belongs to the technical field of optical system design. The system comprises a primary mirror, a compound eye optical unit, a refraction correction mirror group unit and a photoelectric detector unit which are sequentially arranged along an optical axis. The compound eye optical unit adopts a light splitting reflection cube-corner prism structure, and divides a focal plane of a primary lens into X paths of sub-view fields; the refraction correction lens group unit comprises n correction lens groups with built-in field diaphragms; a concentric annular light barrier group is arranged on the inner wall of the primary mirror chamber. Large-view-field observation is realized through optical splicing of a compound eye structure, strong background stray light in the daytime is remarkably inhibited by utilizing a built-in view field diaphragm and combining multiple scattering absorption of a light barrier group, and the stray light coefficient of the system is lower than 1.11 * 10 <-7 >. The technical problem that an existing optical telescope cannot carry out high-contrast large-view-field observation in the daytime is solved, and all-weather monitoring of near-earth celestial bodies is achieved.

The present application relates to the technical field of photovoltaic panels, and specifically discloses a photovoltaic support with an angle adjusting function, which comprises support rods, support bodies provided at the upper ends of the support rods, and swing assemblies provided at the connecting positions of the support rods and the support bodies, so that the support bodies can rotate in terms of angle during the daytime; the swing assemblies are provided to drive the driving gears to move by the motor, so that the angle of the support bodies can be adjusted, and the photovoltaic panels on the surface of the support can correspond to the incident light of the sun as much as possible, thereby increasing the total power generation of the photovoltaic panels; and the control assembly is provided, so that the user can change the pitch angle of the support body according to the different incident angles of the sun in different seasons, so as to reduce the angle between the photovoltaic panels and the incident light of the sun, thereby further increasing the power generation efficiency of the photovoltaic panels.

We present a ground-based laser system for searching, ranging, and tracking that actively illuminates small resident space objects (RSOs) in low Earth orbit (LEO) and observes position and transit-time of reflections, enabling orbital custody of most one-to-few centimeter-sized objects. A diode-pumped alkali laser (DPAL) augmented with mode-locking and Q-switching serves as an illuminator and offers exceptionally high spectral brightness due to its output beam's sub-nanosecond pulse duration and picometer-level spectral linewidth. Kilohertz fast-rastering enables interrogations of distinct few-meter-sized sky-patches at megahertz rates. Paired on the observation side with one or more telescopes outfitted with Faraday anomalous dispersion optical filters (FADOFs), image intensifiers, multi-pixel arrays, and nanosecond timing, the combined system could offer nearly background-free discoveries of RSOs every hour, even during daytime. Periodically re-flashing previously discovered objects to maintain orbit custody expends only a small fraction of total observing time.

The utility model discloses an adjustable light supplementing device for culturing traditional Chinese medicinal materials, which comprises a lifting frame and a light supplementing assembly, and is characterized in that the lifting frame comprises a base, a fixed rod and a control box which are fixedly arranged at the upper end of the base, a support rod arranged on the outer side of the fixed rod, and a lifting rod movably sleeved in the fixed rod; the light supplementing assembly comprises an adjusting rod hinged to the interior of the hinge groove, a light reflecting plate fixedly installed at the upper end of the adjusting rod, and an adjusting sleeve movably connected to the exterior of the lifting rod in a sleeving mode. The two ends of the push-pull rod are rotationally connected with the upper end of the adjusting sleeve and the middle of the adjusting rod respectively, the electric push rod is fixedly installed on the outer wall of the fixing rod, and the connecting block is fixedly connected with the top of the electric push rod and the lower end of the adjusting sleeve. According to the utility model, light can be supplemented at night, the illumination condition can be enhanced in the daytime, and the light supplementing height and the light supplementing angle can be adjusted.

The invention discloses a photovoltaic power generation new energy outdoor lighting device, and belongs to the technical field of new energy lighting, the photovoltaic power generation new energy outdoor lighting device comprises a lamp post and a bottom bin, the tops of the two sides of the bottom bin are hinged to a lighting lamp and a mounting frame respectively, and a photovoltaic panel is mounted on the surface of the mounting frame; and a retracting and releasing mechanism for adjusting the angles of the illuminating lamp and the mounting frame is arranged in the bottom bin, the two ends of the mounting frame are jointly provided with a dust removing mechanism for removing dust on the surface of the photovoltaic panel, and a bird repelling mechanism for repelling birds is arranged at the top of the bottom bin. The photovoltaic panel can be automatically released in the daytime through the retracting mechanism, the illuminating lamp is synchronously retracted downwards, birds are prevented from staying on the illuminating lamp in the daytime and being contaminated by bird droppings, the photovoltaic panel is controlled to be retracted and the illuminating lamp is released for illumination in the evening, the birds are prevented from staying on the photovoltaic panel and being contaminated by the bird droppings after the evening, and the safety of birds is improved. And the subsequent conversion efficiency of the photovoltaic panel is influenced.

The utility model discloses a rotary navigation mark indicating lamp which comprises an indicating mechanism, the indicating mechanism comprises a floating base, a support is installed on the floating base, a fixed base is arranged on the support, a lampshade is installed on the fixed base, a bulb is arranged in the lampshade and installed on a lamp holder, and the lamp holder is fixed to a rotary disc. The turntable is mounted on the fixed base and connected with the motor through the transmission shaft, and the motor is mounted on the fixed base; a reflecting cover is arranged on one side of the bulb, is fixed on the turntable and is made of glass, and the surface of the reflecting cover is coated with a reflecting layer; a battery is fixed on the lamp holder, supplies power to the bulb and the motor and is charged by a solar panel, and the solar panel is arranged on the outer side of the support. The bulb and the reflecting cover are rotated by starting the motor, light is emitted to the reflecting cover to generate an obvious rotating light effect when the bulb rotates, and the indicating effect on a channel is more obvious no matter in the daytime or at night.