248 results about "Natural illumination" patented technology

The invention provides an intelligent building energy conservation and emission reduction digital twin management system and method, and relates to the field of building automation and energy conservation control. The intelligent building energy conservation and emission reduction digital twinborn management system comprises a digital twinborn model construction module, an energy consumption prediction and regulation module, a multi-device cooperative control module, a real-time feedback and self-learning module and an edge-cloud cooperative architecture. By integrating a building information model, real-time sensor data, meteorological data and the like, a three-dimensional visual dynamic twinborn model is constructed, historical data playback and thermodynamic diagram analysis are supported, omnibearing virtual mapping of a physical building is realized, a physical system and virtual model data are synchronized in real time through an Internet of Things sensor network, and the real-time real-time dynamic twinborn model is established. The consistency of a virtual model and an actual system is ensured, the precision and reliability of the model are remarkably improved, artificial illumination is dynamically compensated according to natural illumination, lamps are automatically turned off in an unmanned area through infrared induction, and equipment-level energy saving is achieved in combination with air conditioning system optimization.

The invention belongs to the field of illumination light control, and relates to a dynamic tunnel illumination optimization method based on driver visual adaptation characteristics, which comprises the following steps of: establishing a relation model between a driver pupil area and ambient illuminance in a tunnel, and calculating a pupil area change rate according to the driver pupil area; establishing a corresponding relationship among the average glancing speed, the pupil area change rate and the ambient light in the tunnel according to the historical data; constructing a calculation model of the total average illumination of the lamps on the road surface in the tunnel based on the natural illumination outside the tunnel and the average horizontal illumination of the lamps on the road surface; an energy consumption and light pollution objective function and a driver psychological load objective function are established based on parameters such as total average illumination of lamps on a road surface in a tunnel and the length from an entrance or an exit, and multi-source data such as illumination, brightness, lamp power, pupil change rate and glancing speed are deeply fused, so that human-vehicle-environment multi-dimensional collaborative optimization is realized. The driving safety and the visual comfort of a driver are improved, and meanwhile, the energy consumption is considered.

The invention provides a remote non-contact photo-thermal deicing method for the surface of a fan blade, and the method comprises the steps: carrying out the ice condition data collection of the surface of the fan blade, and obtaining multi-modal data; performing feature recognition on the multi-modal data to obtain ice condition features; constructing a three-dimensional thickness distribution model by combining natural illumination factors based on the ice condition characteristics, and generating a deicing strategy; laser deicing is carried out according to the deicing strategy, and a laser beam is adjusted and controlled through a bee colony focusing algorithm; monitoring the temperature change of the coating on the surface of the fan blade in real time so as to adjust the laser power; and carrying out deicing rate detection on the surface of the de-iced fan blade, and if the deicing rate does not reach the standard, carrying out deicing operation again until the deicing rate reaches the standard. According to the method, through fusion of multispectral imaging, millimeter wave radar, a double-flow neural network and a dynamic environment modeling technology, accurate identification of ice conditions and adaptive laser deicing control are realized, and dependence on natural illumination is removed while energy consumption is reduced.

The invention discloses a house building construction energy-saving method under a green building concept. According to the invention, through integrated arrangement of the intelligent building system, the method can realize efficient operation of the building and optimization of energy management. Due to the integration of the intelligent lighting system and the intelligent temperature control system, the building can be automatically adjusted according to natural lighting conditions and indoor environment, and therefore dependence on traditional energy is remarkably reduced. And the big data analysis module can identify the energy-saving potential and formulate an optimization control strategy by collecting and analyzing the building operation data, so that the energy consumption is further reduced. Establishment of a long-term monitoring system is helpful for continuously optimizing energy-saving measures, and regular green performance evaluation can ensure that the building always reaches an expected energy-saving standard. The intelligent level of the building is improved, and long-term energy conservation and environmental protection targets of the building are achieved through continuous data analysis and optimization adjustment.

A method for determining natural illumination duration and an electronic device are provided, to more accurately determine a scenario in which a user is located and effectively determine natural illumination duration, to help the user improve vision. The method is applied to an electronic device having a display screen and includes: determining a current scenario based on a preset reference factor (S901), where the preset reference factor includes any one or more of ultraviolet intensity, illumination intensity, and locating signal strength; and counting current natural illumination duration towards cumulative natural illumination duration if the current scenario is a preset scenario (S902), where the preset scenario includes any one or more of an outdoor scenario, an indoor near-window scenario, and an outdoor blocked scenario.

The invention relates to the field of automobile electronic testing technology and equipment, and discloses a vehicle-mounted camera imaging quality testing method and device suitable for a rain and fog scene, and the method comprises the steps: installing a to-be-tested camera module in a rain and fog environment cabin, setting the spectrum and illumination of a top natural illumination simulation system, and simulating the illumination at different time periods; selecting a test target plate in the darkroom; starting an automatic centering module to align the optical axis with the standard plate reference; rain and fog parameters are set through the environment control host, the rain and fog supply system is started to simulate different levels of rain and fog environments, and the raindrop particle size, concentration, dripping speed, fog visibility and fogdrop particle size are dynamically regulated and controlled; shooting a target plate graph card, extracting characteristic parameters by an image analysis module, performing quantitative analysis, and generating an evaluation report, so as to solve the technical problem of singleness of rain and fog scene environment simulation in the prior art.

The invention provides an illumination supplementing device for assisting breeding of pheasant virens, and relates to the technical field of optical instruments.The illumination supplementing device comprises a shell, and the shell is provided with a light path channel in a communicating mode; the parallel light generating mechanism is arranged at the tail part of the light path channel; the light condensation adjusting mechanism is arranged in the middle of the light path channel; the light spot amplification mechanism is arranged at the head part of the light path channel; the simulation regulation and control mechanism is arranged in the shell, and the simulation regulation and control mechanism is connected with the parallel light generation mechanism. The simulation regulation and control mechanism regulates and controls the illumination intensity period of parallel light so as to simulate the period of natural illumination, light spots are refracted and amplified through the light spot amplification mechanism and then are subjected to illumination supplementation, and the size of the light spots projected on the light spot amplification mechanism can be adjusted through the light condensation adjustment mechanism, so that the illumination intensity of the light spots is adjusted. Therefore, the illumination supplementing range is regulated and controlled, the supplemented illumination is adjusted, and the auxiliary breeding effect of cage rearing of pheasants virens is guaranteed.

The invention relates to the technical field of image processing, and discloses a tea maturity detection method and system, and the method comprises the steps: obtaining an original image of tea in a natural illumination imaging environment; generating a global illumination difference chart representing an ambient illumination state, and performing illumination compensation on the to-be-detected area of the tea in the original image to obtain a compensated image of the tea; performing gray scale range adjustment on the compensated image of the tea leaves to obtain an enhanced spectral image of the tea leaves; integrating the color and spectral characteristics of the specific spectral reflection characteristics of the tea leaves with different maturity degrees in the enhanced spectral image and the three-dimensional morphological characteristics reflecting the spreading degree and thickness of the tea leaves into the fusion image characteristics of the tea leaves; mapping the color spectrum emission characteristics and texture characteristics of the tea leaves in the enhanced spectrum image to a maturity discrimination knowledge base of the tea leaves to obtain a preliminary maturity result; performing confidence coefficient weighting on the preliminary maturity result to obtain a target maturity; according to the invention, the tea maturity detection efficiency can be improved.

The utility model provides a lamp which comprises the following components: a housing which comprises a bottom wall and a frame which is connected with the bottom wall and extends in a direction far away from the bottom wall; the light emitting assembly comprises a first light emitting part and a second light emitting part which are integrally formed, the first light emitting part is arranged below the bottom wall, and a first lamp cavity is defined by the first light emitting part and the bottom wall; the second light emitting part extends from the edge of the first light emitting part in the direction away from the bottom wall to abut against the frame, and a second lamp cavity is defined between the second light emitting part and the frame; the light source module comprises a first light source assembly and a second light source assembly, the first light source assembly is located in the first lamp cavity, and light emitted by the first light source assembly is emitted out after passing through the first light emitting part; the second light source assembly is arranged around the first light source assembly and located in the second lamp cavity, and light emitted by the second light source assembly is emitted out in the direction away from the frame after passing through the second light emitting part. The lamp is light and thin, convenient to install and capable of simulating natural illumination more truly.

The invention relates to an oil preparation method based on an oil material cell reactor principle, which comprises the following steps: S1, comprehensively grading rapeseeds into mature grains and immature grains according to appearance color and grain size; s2, performing after-ripening reaction on the sorted immature rapeseed grains under the conditions of natural illumination or artificial illumination or both of the natural illumination and the artificial illumination and certain temperature and humidity; s3, merging the ripe rapeseeds sorted in the step S1 and the rapeseeds subjected to light-promoted after-ripening treatment in the step S2, and putting the merged rapeseeds in a microwave field or an infrared field or a multi-physical field of the microwave field and the infrared field for collaborative pretreatment so as to continue cell reaction; s4, the rapeseeds subjected to multi-field collaborative pretreatment are subjected to tempering and then guided into a low-temperature oil press to be squeezed to prepare oil; and S5, cooling the squeezed crude oil, and then carrying out precision filtration at a relatively low temperature to obtain finished oil. According to the method, migration of natural nutritional ingredients into oil and generation of a large amount of pleasant aroma substances are promoted at a relatively low temperature, and high-quality edible oil is produced.

The invention provides a preparation method and application of a photocatalytic microorganism-nano material heterozygote. The heterozygote is formed by compounding electroactive bacteria Shewanella oneidensis MR-1 and a nano material CNx with a photoelectric effect, degradation of antibiotics such as tetracycline and the like is accelerated by utilizing photo-induced electrons and holes generated by excitation of the CNx under a natural illumination condition, inhibition of the antibiotics on microbial activity is relieved, the microbial metabolism efficiency is improved, and the degradation rate of antibiotics such as tetracycline and the like is increased. Therefore, nitrogen and phosphorus elements in the wastewater are rapidly induced to form magnesium ammonium phosphate crystals, and synchronous antibiotic degradation and nitrogen and phosphorus resource recovery are realized. The method is easy and convenient to operate, environmentally friendly and high in phosphorus recovery efficiency, the obtained magnesium ammonium phosphate crystals are controllable in grain size and excellent in quality, and the method is suitable for resourceful treatment scenes of antibiotic-containing organic pollutants such as breeding wastewater and has good application and popularization prospects.

The utility model belongs to the technical field of solar houses, and relates to a solar photo-thermal collection house, which comprises a house, a condensing lens, an optical fiber bundle and a heat storage tank, sunlight is introduced into the house through the condensing lens and stored in the heat storage tank, solar energy collected in the daytime is converted into heat energy through the phase change heat storage and release characteristics of the heat storage tank, and the heat energy is stored in the house through the optical fiber bundle. Heat is supplied to the machine room at night; therefore, the solar photo-thermal collection house can be used for indoor heat preservation, hot water supply, natural light illumination and the like, and the solar photo-thermal collection house is safe, convenient, energy-saving, environment-friendly, low in energy consumption and low in cost.

The invention discloses a UVB control method and system for laying hen breeding, and the method comprises the steps: arranging a multi-band UVB intelligent light supplement lamp and an illumination intensity sensor in a henhouse, building an intelligent illumination regulation and control module based on a laying hen growth model, and building communication. The system obtains laying hen growth parameters and real-time illumination data, and determines and controls parameters of a light supplement lamp. According to the method, the UVB illumination time, intensity and wavelength can be accurately regulated and controlled according to factors such as different growth stages of laying hens, seasonal changes and breeding environments, and the UVB illumination time, intensity and wavelength can be accurately regulated and controlled according to different growth stages of laying hens, seasonal changes, breeding environments and the like; the method is an innovative method which can be cooperatively controlled with other breeding environment factors, so that the egg laying performance, egg quality and overall health level of laying hens are improved.

This utility model discloses a constant temperature and humidity device for germinating larch seeds, relating to the field of seedling equipment technology. The utility model includes an insulated shell, with a storage mechanism fixedly connected to its inner cavity. A humidity-regulating component is fixedly connected to one side of the insulated shell, and a ventilation component is connected to the top of the insulated shell. The storage mechanism includes an inner shell disposed within the inner cavity of the insulated shell. This utility model, through the cooperation of the inner shell and the insulated shell, forms a double-layered insulated space, effectively reducing heat loss and ensuring stable internal temperature. The connecting plate, bracket, and tray design within the inner shell facilitates layered seed placement, not only improving space utilization but also ensuring good air circulation for each layer of seeds. A heater rapidly raises the internal temperature, and a lighting lamp simulates natural light conditions, providing suitable illumination for seed germination and helping to improve germination rate and quality.

The utility model belongs to the technical field of pipeline repair, and particularly relates to a natural light irradiation curing device for trenchless pipeline repair, which comprises a light guide pipe, a light condensing pipe fixedly mounted at one end of the light guide pipe, a first light beam connector fixedly mounted at one end of the light condensing pipe, and an optical cable winch arranged on one side of the first light beam connector. A motor is fixedly installed on one side of the optical cable winch, a winding roller is arranged on the inner side of the optical cable winch, an optical cable is arranged on the winding roller, a tractor is arranged on one side of the optical cable winch, a second light beam connector is fixedly installed on the top of the tractor, and a second convex lens is arranged at one end of the second light beam connector. The fixed rod, the movable rod, the movable groove, the compression spring, the inner rod, the supporting base and the supporting pulley are arranged and used in cooperation, the supporting base and the supporting pulley can support the top of a pipeline by adjusting the movable inner rod in a lifting mode, the stability of a tractor in the moving process is conveniently improved, and the interior of the pipeline can be better repaired conveniently.

The invention provides a light guide pipe system and artificial lighting system collaborative optimization control method and a related device, and belongs to the technical field of light guide pipe and artificial lighting collaborative control. The genetic algorithm is used for optimizing the first fitness function and the second fitness function, and the position, the pipe diameter and the length of the optimized light guide pipe are obtained; a nonlinear regression fitting model is constructed, and the nonlinear regression fitting model is utilized to calculate the natural illuminance transmitted to the indoor space by the optimized light guide pipe; and comparing the optimized natural illuminance transmitted to the indoor space by the light guide pipe with the set indoor natural illuminance, and if the optimized natural illuminance transmitted to the indoor space by the light guide pipe is lower than the set indoor natural illuminance, controlling the illuminance of the artificial lighting system to be the set indoor natural illuminance by utilizing a greedy strategy. And collaborative optimization control of the light guide pipe system and the artificial lighting system is realized. According to the invention, the problem of poor collaborative optimization control effect of the light guide pipe system and the artificial lighting system is solved.

The invention discloses an automatic small evaporator, which belongs to the technical field of evaporation measurement and comprises an evaporation dish, an evaporation weighing device, an overflow cylinder, an overflow weighing device, a protection box, an evaporator bracket, a control unit, a rainwater collecting cylinder, a rainwater collecting weighing device and a rainwater collecting cylinder bracket. Weighing measurement and data processing are completed through automatic control of the control unit, the rain collecting cylinder and the rain collecting weighing device are designed, the function of measuring precipitation and evaporation in the same place is integrated, and evaporation calculation errors caused by uneven precipitation distribution are avoided; by installing the grid mesh, errors of water drinking and water splashing of birds are avoided under the condition that water surface ventilation and natural illumination are not affected; by designing a double-layer device wall evaporation dish, filling a heat insulation material in an interlayer and spraying ceramic microbead heat insulation coatings on the inner and outer device walls, the influence of solar radiation temperature increase on the evaporation measurement precision is effectively avoided. According to the invention, automatic measurement of the small evaporator is realized, and the measurement precision is greatly improved.

The invention provides a polypeptide and application thereof in photocatalytic nitrogen fixation, and belongs to the technical field of photocatalysts. The sequence of the polypeptide is N3y (NBD-yyy) or N3Y (NBD-YYY), NBD is 4-amino-7-nitrobenzofurazan, y is D-configuration tyrosine, Y is L-configuration tyrosine, and the amino group in the NBD is derived from HCl-removed carbon nitrogen coupling of NBD-Cl (4-chloro-7-nitrobenzofurazan) and free amino group on y or Y. The polypeptide provided by the invention can be prepared into an aqueous solution for assembling and adsorbing nitrogen, and forms a charge transfer compound with nitrogen. Under the condition of normal-temperature and normal-pressure natural illumination reaction for 6 hours, the ammonia gas generation efficiency of the photocatalyst is 61.8 mg <-1 > gcat <-1 > h <-1 >, the catalytic electron turnover number is 43.9, and the efficiency of the photocatalyst can be compared favorably with that of the current excellent non-metal inorganic material, metal or metal-organic photocatalyst.

The invention discloses an interior design illumination simulation device, and relates to the technical field of interior design illumination simulation. The indoor design illumination simulation device comprises an outer frame, the outer wall of the outer frame is fixedly connected with a display component, and the inner bottom of the outer frame is fixedly connected with a simulation mechanism. According to the indoor design illumination simulation device, the model placement disc is driven to rotate through the motor, the indoor design model is driven to turn, and the illumination angle change of sunlight at different time points (such as morning, noon and evening) can be simulated. According to the dynamic rotation design, the back face of the model can also face the simulation lamp, the illumination test range is expanded, the visual effect and shadow distribution of the indoor design under different natural illumination conditions can be comprehensively evaluated, the limiting assembly allows the sliding rail to rotate around the fixing shaft and be fixed at different angles through cooperation of the fixing shaft, the sleeving ring and the bolt, and the detection accuracy is improved. Therefore, the arc-shaped track of the simulation lamp is adjusted.

The utility model relates to withering equipment for black tea production, in particular to the technical field of black tea production equipment. The device comprises a box body, a box door, a rotating basket, a first rotating shaft, a second rotating shaft, a fan, a gear, an annular gear ring, a first bevel gear, a second bevel gear, a first motor, a rotating drum, a second motor and an LED plant growth lamp, the fan is started, the first motor is started to drive the second rotating shaft to rotate, air generated by the fan is evenly discharged from an air outlet, even ventilation is achieved, and the effect of uniform ventilation is achieved. When a second rotating shaft rotates, a gear is meshed with an annular gear ring to drive a rotating basket to rotate, and meanwhile, a second motor is started to drive a rotating drum to rotate along with the rotating basket so as to turn over the tea leaves, so that uniform withering of the tea leaves is realized through rotation of the rotating basket and the rotating drum; the LED plant growth lamps are turned on to simulate natural illumination conditions, so that chemical components in the tea leaves are promoted to be converted, and the withering quality is improved.

The utility model provides lycium barbarum hardwood cutting equipment, and relates to the technical field of lycium barbarum cutting. The equipment body comprises a main frame and a moving plate, the moving plate is vertically and slidably clamped to the front side of the interior of the main frame, a second through hole is formed in the moving plate, a matrix box is placed in the main frame, a soaking box is clamped to the top of the main frame, and clamping rods are clamped to the left side and the right side of the interior of the main frame. A sprinkler pipe is mounted at the top of the rear end of the inner side of the main frame body; and a cutting box is clamped in the soaking box. The height of the soaking box can be controlled through the clamping rods, natural illumination and growth of the lycium barbarum cuttage hard branches in the main frame body are not affected, soaking, cuttage and matrix culture can be completed in one device, hard branch moving in the cuttage process is reduced, and the problems that the hard branch cuttage process of lycium barbarum is difficult to complete through one device, and moving is reduced are solved.

The utility model provides a seedling raising frame for tea planting, which relates to the technical field of tea planting and comprises a frame body, a plurality of laminates are arranged on the frame body, a water pipe is fixedly connected onto the frame body, a plurality of nozzles are arranged on the water pipe, a rotating structure is arranged on the frame body, the rotating structure mainly comprises four chain wheels, and the four chain wheels are arranged on the frame body. The four chain wheels are rotationally connected to the inner walls of the two sides of the frame body through bearings correspondingly, every two chain wheels located at the same height are fixedly connected through a round rod, every two chain wheels located on the same side are jointly connected with a chain in an engaged mode, and a plurality of connecting shafts are fixedly connected to the chains. The utility model solves the problem that the overall quality and the survival rate of seedlings are affected due to the fact that the placing position of each layer of seedlings is relatively fixed, the seedlings on the upper layer close to a light source can obtain sufficient illumination under natural illumination, the illumination quantity of the seedlings below is obviously insufficient, and the illumination is not uniform.

A method for imaging an object illuminated with natural light including arranging an optical filter in an optical path of at least a portion of the natural light that is reflected and / or refracted or scattered from the object; arranging an optical detector in an optical path of light at least one of reflected from and / or transmitted through the optical filter; detecting, using the detector, individual photons for a time period to provide a times series of individual photon events; segmenting the time series into a plurality of bins; determining a number of detected photons within each bin to provide a time series of photon counts per bin; replacing and / or reconfiguring the optical filter a plurality of times followed by detecting, segmenting and determining to obtain a plurality of times series of photon counts per bin; and forming an image of the object based on the plurality of times series.

The invention relates to the technical field of NO2 gas detection, and particularly discloses a high-sensitivity visible light full-spectrum activated sensitive material, the sensitive material is a g-C3N4 / SnS / Au nano composite material with a heterostructure, the g-C3N4 / SnS / Au nano composite material comprises g-C3N4 with a multi-lamellar structure and granular SnS growing on the surface of the g-C3N4, and the g-C3N4 / SnS / Au nano composite material is a high-sensitivity visible light full-spectrum activated sensitive material. The g-C3N4 / SnS composite material with a heterostructure is formed, Au nanoparticles are freely distributed on the surface and / or the edge of the g-C3N4 / SnS composite material, and a heterojunction is formed on a contact interface of the Au nanoparticles and the g-C3N4 / SnS composite material. The sensitive material disclosed by the invention has excellent absorption capacity on full-spectrum visible light, can better promote the generation of photon-generated carriers and improve the photon utilization rate under the irradiation of an external light source or natural light, and meanwhile provides activation energy required by surface reaction between target gas molecules and the sensitive material; sufficient energy is provided for gas-sensitive reaction at room temperature, and the comprehensive gas-sensitive performance of the gas sensor is enhanced.

The utility model belongs to the technical field of hydrangea cultivation, particularly relates to a hydrangea cultivation frame with controllable temperature and illumination, and aims to solve the problems that the growth cycle of hydrangea is prolonged and the quality of the hydrangea is reduced due to the fact that natural illumination and room temperature of an existing traditional cultivation frame are difficult to meet the requirements of the hydrangea in different growth stages. Comprising a base, a cultivation frame is fixedly arranged at the top of the base, and a protective cover is fixedly arranged at the top of the cultivation frame, the illumination and temperature requirements of hydrangea in different growth stages can be met through multiple sets of illumination assemblies and heating assemblies, the growth speed of the hydrangea is increased, and the growth quality of the hydrangea is improved; the covering assembly can effectively prevent heat loss, the flow guide groove and the collecting groove are formed in the storage plate, the flow guide pipe is arranged, redundant water generated after hydrangea is watered can be collected and guided to the lower layer, and the problem of root rot caused by water accumulation is solved.

The utility model relates to the technical field of agricultural biology, in particular to an industrial hemp seedling raising frame which comprises a bottom basin, the outer surface of the bottom basin is fixedly connected with a first connecting shaft, the outer surface of the first connecting shaft is movably connected with a first rotating cylinder, and the side surface of the first rotating cylinder is fixedly connected with a first connecting rod. A second rotating cylinder is fixedly connected to the outer surface of the first connecting rod, a second connecting shaft is movably connected to the interior of the second rotating cylinder, and a first side basin is fixedly connected to the side surface of the second connecting shaft. Through the arrangement of the lifting rod and the first connecting rod, the bottom basin can be conveniently moved, and when indoor natural light is insufficient or uneven, a user can easily push the bottom basin to a position with good light beside a window or adjust the position according to the moving track of the sun, so that industrial hemp seedlings can continuously receive sufficient sunlight.

The invention discloses an allium mongolicum regel cultivation method with an LED as a light supplementing source, and belongs to the technical field of plant cultivation. The allium mongolicum regel cultivation method with the LED as the light supplementing light source comprises the following steps that after allium mongolicum regel is cut, light supplementing treatment is conducted on the allium mongolicum regel every day, and harvesting of the allium mongolicum regel is stopped after 30 days; then the allium mongolicum regel is cut, and then the steps are repeated; the light supplementing treatment comprises the steps that natural illumination is conducted in the daytime, and after no natural illumination exists at night, light supplementing is conducted for 5 h with an LED as a light source. The invention provides an efficient, energy-saving and accurate light supplementing scheme capable of promoting the growth of allium mongolicum regel and improving the quality of the allium mongolicum regel. The yield and quality of allium mongolicum regel are effectively improved by accurately controlling the light source, the illumination intensity, the red-blue light proportion in the light source and the light supplementing time.

The utility model relates to the technical field of contact networks, and discloses a double-camera contact network geometric parameter detection device, which comprises a first camera, a second camera and a laser, the first camera and the second camera are oppositely arranged at the top of an installation main body, and the laser is positioned between the two cameras, so that high-precision double-view-angle shooting of the contact network is realized. The device can ensure that at least one camera works normally under any natural illumination condition, a clear overhead line system image is acquired, pixel coordinates of the bottom of the contact line in the image are accurately found out through an image processing algorithm, and the geometric position of the contact line in an actual space is calculated through a coordinate system. Besides, the device has the capability of autonomously switching the working modes of the double cameras, can realize continuous high-precision detection in a strong sun illumination environment in the daytime, is suitable for any geometric detection method of the overhead line system, has strong environmental adaptability, universality and flexibility, and improves the detection efficiency at the same time.

The invention relates to the technical field of plant cultivation, in particular to an acousto-optic coupling controllable plant box. The plant box comprises a box body, the box body comprises a box door, the box door is provided with a sound production device, and the sound production device can produce specific sound waves or play music so as to control the sound waves to influence the growth and development of plants. The plant box is further provided with an advanced control system, environmental data are monitored in real time through a sensor, after analysis and processing, the temperature, humidity and other environments in the plant box are adjusted, it is ensured that plants obtain the optimal growth conditions, a light supplementing lamp panel can be replaced according to needs, and therefore the growth environment of the plants is monitored and adjusted in real time, and the plant growth environment is improved. According to the intelligent plant light supplementing method, the natural illumination change is simulated, the specific requirements of different plants for the illumination intensity, the light quality ratio and the light period are met, the intelligent plant light supplementing method is achieved through the scheme, the light supplementing efficiency and the optimal adjustment of the plant growth environment are improved, and a more scientific and accurate environment control solution is provided for plant growth.

The utility model is applicable to the technical field of underground shafts, and provides a lighting and ventilating shaft for underground space, which comprises a shaft body. The well mouth is communicated with the upper portion of the well body, and a mounting frame is arranged at an opening of the well mouth and is obliquely arranged; a reflective main lens is arranged at the upper part of the well body close to one side with larger inclination gradient of the mounting frame; a first light-reflecting secondary lens is arranged at the inclined lower position of one side, opposite to the light-reflecting primary lens, of the well body; a second light reflecting secondary lens is arranged at the inclined lower position of one side, opposite to the first light reflecting secondary lens, of the well body; through collaborative optimization of the daylighting skylight and the reflective lenses, natural light is introduced into the well body to the maximum extent, sufficient and uniform natural illumination is provided for underground space, and effective energy conservation and implementation of the environment protection concept are achieved; meanwhile, the ventilation system can efficiently adsorb and discharge foul air in the underground space, and the air quality is remarkably improved.