83 results about "Radiation angle" patented technology

The invention relates to the field of sun tracking sensing devices, and aims to solve the problems that a light radiation detection system is delayed in response and high in analysis complexity due to indirect calculation or image analysis for obtaining a sunlight radiation angle, and accumulative errors exist under a dynamic illumination condition. According to the solar tracking sensing device and method for realizing dynamic scanning of the light radiation quantity, measurement and direct output of the light radiation quantity and the angle are realized through rotation of the two-axis holder, and the maximum value of the light radiation quantity and the angle value corresponding to the light radiation quantity of a to-be-measured site can be obtained by directly using the device disclosed by the invention at the to-be-measured site; the light radiation quantity and the corresponding angle are directly output, dependence on continuous light intensity distribution is reduced, the problems that dynamic response of a sun tracking device in the prior art is delayed, and the light radiation quantity and the corresponding angle cannot be directly output are solved, and the device can be widely applied to the photovoltaic panel fixing and installing process and a dynamic angle adjusting system of a photovoltaic panel.

The invention discloses an angle-adjustable narrow-band heat radiator based on corner hyperbolic phonon polaritons. The heat radiator sequentially comprises a metal layer, a natural biaxial hyperbolic medium, a vacuum / air spacing layer and a one-dimensional medium grating. According to the angle-adjustable heat radiator, the biaxial hyperbolic medium and the gold layer are twisted as a whole, and the included angle between the radiating surface and the plane where the crystal axis of the natural biaxial hyperbolic medium is located is changed, so that the heat radiation direction is changed. The radiator can be produced on a large scale at low cost by utilizing processes such as nano photoetching and deposition. The narrow-band directional thermal radiation device obtained through the nano manufacturing technology is stable and reliable in performance, can generate thermal radiation with narrow bandwidth and small radiation angle, has the characteristics of adjustable direction, flexibility, convenience and the like, and is expected to be applied to the fields of directional heat dissipation, thermal camouflage and the like.

The present invention discloses a design method for a replacement model of a Fresnel zone patch antenna that integrates physical mechanisms, and belongs to the field of antenna design technology in artificial intelligence technology and communication technology. The method includes: calculating the physical parameters of the Fresnel zone patch antenna; calculating the estimated gain data and theoretical gain data of the Fresnel zone patch antenna with different physical parameters within a preset radiation angle range; constructing a deep neural network model, and training the deep neural network model using data in a training set and label data; using the trained deep neural network model as a replacement model for the Fresnel zone patch antenna, and using the replacement model to predict the gain at different radiation angles. The replacement model designed by the present invention can quickly and accurately predict the gain within the main radiation angle of the FZPA. Compared with traditional replacement models, it has high accuracy, fast speed, low training cost, and significantly higher efficiency than traditional FZPA design methods.

The present invention relates to a store service management system, a method for providing a store service of the system, and a sensor device. The store service management system according to an embodiment of the present invention comprises: a sensor device provided in a store such that the provision height thereof relative to a floor surface of the store is adjustable through a height adjustment unit, or a radiation angle of a signal is adjustable through a housing formed to satisfy designated conditions in consideration of signal characteristics, thereby intensively transmitting the signal only to a designated spatial area within the store to perform communication; and a store service management device, which receives, from a user terminal device, store identification information acquired when an application for using the store service is executed in the user terminal device located in the store, and thus provides, on the basis of the (pre)received identification information, a store service that can be used at a store in which the user terminal device is located.

A wind pressure type of haptic firefighting nozzle interface that is interworked with virtual reality (VR) content for virtual firefighting training is provided. The wind pressure type of haptic firefighting nozzle interface includes: a flow controller for adjusting a spraying intensity of water sprayed on the VR content; a stream shaper for adjusting a spray shape according to a radiation angle of the water sprayed on the VR content; and at least one first haptic device for providing haptic feedback corresponding to the spraying intensity and the spraying shape determined according to control through the flow controller and the stream shaper using wind pressure.

The invention belongs to the technical field of micro-nano optics, and discloses a multichannel multiplexing fluorescent display method and device. A metasurface is constructed, a plurality of unit structure arrays with different periods are spatially arranged on the metasurface, and the unidirectional radiation angle of guided wave fluorescence corresponding to each unit structure array is controlled by encoding the period of each unit structure array; by means of numerical aperture limitation of an imaging observation system, analog quantity regulation and control of the super-structure surface on the fluorescence radiation angle is converted into a discrete intensity coding state, a plurality of independently coded target fluorescence images are presented at different observation angles, and multi-channel multiplexing fluorescence display is achieved. According to the invention, multi-channel multiplexing display of fluorescence can be realized, the degree of freedom and flexibility of fluorescence multiplexing are improved, and the requirements of next-generation high-density display and information encryption can be met.

The present invention relates to a frequency steered phased array antenna which adjusts beam radiation angle according to frequency for broadband electromagnetic waves, and radiates beams of uniform intensity over a broad range of angles including directly forward. The frequency steered phased array antenna according to the present invention comprises: a directional coupler including a serial feed line that is stacked in n layers and has a plurality of coupling holes formed in one direction in each of the layers; and a radiating module including n horn antennas respectively connected in correspondence to the n layers of the serial feed line, wherein the plurality of coupling holes are formed in each of the layers of the serial feed line at intervals of ¼ of the wavelength (λ) of electromagnetic waves (radio waves) supplied to the serial feed line, and the horn antennas radiate the electromagnetic waves output through the coupling holes of the serial feed line.

The present application relates to the field of sun tracking sensing device, the acquisition of sunlight radiation angle needs to pass through indirect calculation or image analysis, resulting in the response delay of light radiation detection system, the high complexity of analysis, and there is cumulative error under dynamic light condition, the present application provides a kind of sun tracking sensing device and method for realizing the dynamic scanning of light radiation amount, the measurement and direct output of light radiation amount and angle are realized by two-axis holder rotation, the maximum value of light radiation amount and the angle value of corresponding light radiation amount of the place to be measured can be obtained by directly using the device of the present application at the place to be measured, direct output light radiation amount and corresponding angle reduce the dependence on continuous light intensity distribution, solve the dynamic response lag of the sun tracking device in the prior art, and the problem that light radiation amount and corresponding angle cannot be directly output, can be widely applied in photovoltaic panel fixed installation process and photovoltaic panel dynamic angle adjusting system.

The invention relates to the technical field of hazardous article detection, and provides a small-size hazardous article terahertz wave band dielectric constant testing method and system, and the method comprises the steps: placing a to-be-tested material between two convex lenses, controlling a horn antenna of a spread spectrum module to emit an electromagnetic wave, and in any radiation angle, viewing the electromagnetic wave as a plane wave, acquiring an S parameter measured by the vector network analyzer, and performing conversion; obtaining the thickness of the to-be-measured material, and converting the thickness into equivalent thickness; obtaining an inversion dielectric constant through an inversion model; acquiring a radiation angle, an image distance and an object distance, converting an incident angle, and determining a conversion dielectric constant on the basis that the refraction angle and the incident angle meet the Snell law; the refraction angle enabling the difference between the inversion dielectric constant and the conversion dielectric constant to be minimum is searched, the dielectric constant under the corresponding radiation angle is obtained, the average dielectric constant is obtained through integration, and the method adapts to measurement of non-uniform samples and size-limited samples.

The utility model provides a kind of test equipment of radiation angle of ray source, applied to radiation imaging technical field, comprising: detector clamping device, control device and shielding device, detector clamping device is structured as can rotate within preset angle, suitable for clamping detector;Control device is connected with detector clamping device communication;Shielding device is set between detector clamping device and control device. Detector clamping device can rotate within preset angle can drive detector to any position within preset angle, whereby, detector can record the radiation dose of the radiation of to-be-measured ray source to any position within preset angle range, to calculate the radiation angle of the ray source to be tested according to radiation angle algorithm. The efficiency of the detector clamping device driving the detector to collect radiation dose is high, and the accuracy is high. The shielding device is set between the detector clamping device and the control device to shield the radiation damage of the rays to the detection personnel.

The utility model discloses a multi-oscillator directional PCB antenna comprising a reflecting plate, a PCB, at least three groups of oscillators, at least two combiners and at least six radio frequency lines, the PCB is arranged on the reflecting plate, the three groups of oscillators are arranged on the PCB at equal intervals, the combiners are arranged between two adjacent groups of oscillators, and the radio frequency lines are arranged between the combiners. And each group of oscillators are respectively connected with the signal input ends of the two combiners through two radio frequency lines. According to the multi-oscillator directional PCB antenna, the gains of the three groups of oscillators are increased through the combiner, and the radiation angle of the antenna is reduced through the reflecting plate, so that the forward gains are increased, and the high-gain performance can be met.

The present disclosure relates to an antenna rotation adjustment mechanism and an antenna assembly. The adjustment mechanism includes a first connecting assembly and a second connecting assembly respectively connected between the antenna and a fixed base member. The first connecting assembly has a retractable first drive assembly, one end of the first drive assembly is used to connect to the antenna, the other end of the first drive assembly is used to connect to the fixed base member, and the second connecting assembly is used to be rotatably connected to the antenna to rotate the antenna in a vertical plane relative to the fixed base member. The first connecting assembly and / or the second connecting assembly also have a second drive assembly, the second drive assembly is used to connect to the antenna and is rotatably connected to the first connecting assembly and / or the second connecting assembly to rotate the antenna in a horizontal plane relative to the fixed base member. The antenna rotation adjustment mechanism and antenna assembly provided by the present disclosure adjust the antenna radiation angle by forming a four-bar linkage structure with the first drive assembly and the second drive assembly, ensuring reliable connection and reducing structural costs.

This cutting edge has a convex curved edge that is a curve convex toward the outer circumference of the tip of a cutting insert. A rake angle (α) in a normal direction of a rake face of the convex curved edge is a negative angle over an entire length of the convex curved edge, and gradually increases to the negative angle side as an end point on a rear end side of the convex curved edge is approached at a radiation angle (θ) of 15°-90°. Where a change amount of the rake angle (α) in the normal direction per 15° of an angle range of the radiation angle (θ) is σ1, σ1 ≤ 3.0°. Where a change amount of the rake angle in an axial direction per 15° of the angle range of the radiation angle (θ) is σ2, σ2 ≤ 6.0° when the radiation angle (θ) is 60°-90°.

The application relates to the technical field of sonar measurement cavity, and particularly provides a phased array measurement cavity sonar device and a detection method, which comprises an instrument body, a data acquisition short section used for emitting and receiving sound wave data, a rotating motor installed between the instrument body and the data acquisition short section and used for driving the data acquisition short section to rotate for measurement, and N acoustic transducers, wherein N is a positive integer, the N acoustic transducers are distributed in an array mode along the axial direction of the data acquisition short section, the N acoustic transducers emit directional sound waves in a phased array mode and receive reflected sound wave signals from the cavity interface, the distance between the acoustic transducers and the cavity section is measured, and a three-dimensional cavity diagram is synthesized according to the distance, the direction and the phased angle information measured by the acoustic transducers. The sonar device adopts phase control to control the radiation angle, thereby saving the device stable balance time, simplifying the mechanical structure and improving the measurement efficiency.

A light detection and ranging (LiDAR) device for a vehicle according to an embodiment of the present disclosure may include a heater supplying heat to a radiator, and a processor that controls the heater to control a radiation angle of a first direction of the radiator by transmitting a command for supplying power to the heater, in an FPA system including a pixel array of 1×N arrays for the first direction and a second direction, in which each pixel of the pixel array includes the radiator radiating light.

The invention relates to a space station heating furnace temperature field calculation method, device and equipment and a medium, and relates to the technical field of thermal calculation, and the method comprises the steps: obtaining geometric models, thermophysical parameters and movement displacement conditions of a heating furnace and materials in the furnace, generating an initial calculation grid, determining a target calculation grid at the current time based on the movement displacement conditions, and calculating the temperature field of the heating furnace. The heating power of the heating furnace is determined through a PID control algorithm, the surface radiation angle coefficient is calculated through a semi-cube method according to the target calculation grid and the simulation temperature of the previous moment, so that the surface heat radiation flux is obtained, and finally new temperature field distribution is determined by combining a transient heat conduction equation. The method achieves the technical effects of accurately calculating the temperature field distribution of the heating furnace and the materials in the furnace, considering factors such as material movement and radiation heat exchange, and being more suitable for actual working conditions.

The invention provides a three-dimensional quartz lamp temperature control heating virtual test method, and the method comprises the steps: building the three-dimensional heat flow distribution of a quartz lamp heater for the radiation heating of the surface of a test piece based on a radiation angle coefficient, and obtaining the nominal heat flow of the quartz lamp heater through a control feedback method; and a quartz lamp heater temperature control heating process in a ground test is simulated, so that efficient virtual thermal test simulation is realized.

The invention discloses a high-rise tower temperature field calculation method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of building structure health monitoring, and the high-rise tower temperature field calculation method comprises the steps: building a radiation model of a tower and radiation heat exchange data of the tower according to structural parameters of the tower; acquiring real-time meteorological data and historical meteorological data; determining wind field distribution data of the structural surface of the tower drum according to the real-time meteorological data; according to the wind field distribution data, convective heat transfer data of the tower drum are determined; determining radiation intensity data and radiation angle data of the sun according to the real-time meteorological data and the historical meteorological tree; and according to the radiation model, the radiation heat exchange data, the convective heat exchange data, the radiation intensity data and the radiation angle data, determining temperature distribution data of the tower. According to the invention, the accuracy of thermal analysis of the tower drum is improved.

A field emission electron source using a plane of a hexaboride single crystal or a transition metal carbide single crystal as an electron emission surface, to improve a ratio of a radiation angle current density to a total current and improve current stability. A first plane top facet is formed at a distal end of a tip of a hexaboride single crystal or a transition metal carbide single crystal with a <100> axis, the first plane top facet is surrounded by side facets that include at least four {n11} planes and at least four {n10} planes, and of which a total area of {n11} plane side facets is larger than a total area of {n10} plane side facets, and a microcrystal having a second plane top facet is formed on a plane of the first plane top facet, and electrons are mainly from the second plane top facet.

The application discloses a light supplementing lamp angle adjusting method, device, system, equipment and medium. In the method, a target light reflection area in a target image is determined based on a trained neural network model according to the obtained target image and a corresponding depth map, three target points in the target light reflection area are determined according to the coordinates of the pixels of the target light reflection area in the target image and the depth values of the target light reflection area in the depth map, a normal vector of a light reflection surface determined according to the three target points and a first vector of a radiation center line of the light supplementing lamp are determined, an included angle value between the normal vector and the first vector is determined, a difference value between a maximum radiation angle value and the included angle value is determined as an adjusting angle value, the light supplementing lamp is automatically controlled to deflect in the direction of the radiation center line according to the adjusting angle value, and the light reflection problem is solved by making the included angle between the normal vector and the first vector not located in the radiation range of the light supplementing lamp.

The application discloses a kind of based on multi-physical field solid flow coupling calculation time sensitive target temperature field method and device, belong to computer aided engineering and thermal physical simulation technical field, including: the heat transfer model of time sensitive target is established, the topological network of time sensitive target is constructed, and one-dimensional fluid network of time sensitive target is constructed, according to the flow heat transfer of fluid region inside time sensitive target and time sensitive target solid convection establishes coupling model;Radiation angle coefficient matrix of time sensitive target surface is calculated based on coupling model, determine the shielding relationship between time sensitive target surface patch, obtain the radiation angle coefficient matrix of time sensitive target surface;Dynamic thermal radiation boundary condition of time sensitive target under external field environment is calculated;Based on heat transfer model, radiation angle coefficient matrix and thermal radiation boundary condition, time sensitive target energy conservation equation set is established, and the temperature field of time sensitive target is solved to obtain.The present application realizes high-precision solid flow convection coupling modeling with low computing overhead, improves the calculation precision and efficiency of time sensitive target.

The present invention relates to an apparatus and a method for generating a virtual environment having a simulated artificial sky, the present invention comprising: a transparent display for displaying one or more sky images; a light source unit comprising a directional light source having a predetermined radiation angle; a reflection mirror disposed on the rear surface of the transparent display and formed so as to reflect light radiated from the light source; and a control unit for controlling the transparent display so as to display a sky image selected among the one or more sky images by a user, and controlling the light source unit so as to change the intensity and color temperature of the light source in accordance with the selected sky image.

The utility model discloses a half-amplitude progressive attenuation horn column loudspeaker box, which relates to the field of column loudspeaker boxes and comprises a column loudspeaker main body, a plurality of horns are mounted in the column loudspeaker main body, a horn plate is arranged on the outer wall of each horn, a beam splitter device is mounted on the outer surface of each horn plate, and a splicing assembly is arranged on the column loudspeaker main body. The splicing assembly comprises a slot and a groove which are arranged at two sides of the top of one sound post main body, and insertion blocks which are arranged at two sides of the bottom of the other sound post main body. According to the utility model, the 12 3-inch full-frequency loudspeakers are adopted, the radiation angle of the box body is set to be 17 degrees, and the deflection angle of the adjacent loudspeakers is 0.75 degree; setting four loudspeakers at the upper end as a standard, and gradually attenuating towards the other end; the device is applied to a relatively large space; and a plane mirror image type application can be realized, namely a suspended column loudspeaker box with 24 3-inch horns is formed, and the use effect of the column loudspeaker box is improved.

The invention provides a satellite guiding method and device for a terminal, the terminal and a readable storage medium, and relates to the technical field of terminals. The method comprises: in a satellite communication mode, first indication information is displayed in response to an operation of opening a first application, the first indication information is used for indicating a relative position between a communication satellite and a first radiation range of a satellite antenna, and the first radiation range is related to signal quality required by the first application; second indication information is displayed in response to the operation of opening the second application, the second indication information is used for indicating the relative position between the communication satellite and a second radiation range of the satellite antenna, and the second radiation range is related to the signal quality required by the second application; the first radiation angle of the first radiation range is different from the second radiation angle of the second radiation range, so that the terminal guides a user to adjust the direction of the terminal through the indication information corresponding to different satellite applications, and the signal quality of the terminal meets the signal quality required when the satellite applications run.

The embodiment of the invention provides a temperature prediction method and device for a phased-array antenna, equipment, a medium and a product. The method comprises the following steps: determining radiation angle change data between a satellite orbit plane and solar incident light, respectively determining external heat flow of a satellite under a high-temperature / low-temperature working condition according to the radiation angle change data and acquired solar motion change data, and further determining a change interval of external heat flow of a satellite orbit according to the external heat flow, and predicting the surface temperature change interval of the phased-array antenna of the satellite according to the determined change interval of the external heat flow of the satellite orbit, the thermophysical property parameters of the phased-array antenna and a pre-established thermal model of the phased-array antenna of the satellite. According to the invention, the accuracy of surface temperature prediction of the phased-array antenna is improved.

The present disclosure provides an ultra-high dose rate radiation method, comprising: controlling a plurality of beam modules to be located at a plurality of target positions in a one-to-one correspondence, so as to form different radiation angles relative to a same target portion; when a region to be irradiated of a target object is located at the target portion, controlling the plurality of beam modules to alternately emit a plurality of radiation beams toward the target portion from the different radiation angles, wherein each of the plurality of radiation beams has an ultra-high dose rate. The present disclosure further provides an ultra-high dose rate radiation apparatus.

The invention provides a continuous casting roller temperature field obtaining method and system, and the method comprises the steps: obtaining the visibility of a surface grid unit from a casting blank to a roller under a finite volume grid; according to the visibility, the radiation angle coefficient between the casting blank and the roller is obtained through Pyview factor; fixing the computational grid on a roller, and numbering boundary grid units of the computational grid; recording boundary condition numbers of the boundary grid units and a radiation angle coefficient corresponding to each boundary condition number by adopting a circular queue mode; iteratively solving the unsteady state heat conduction equation set according to the set boundary condition number and the corresponding radiation angle coefficient to obtain a temperature field of the roller under the set boundary condition; and iteratively solving the unsteady state heat conduction equation set and obtaining the temperature field of the roller under the current boundary condition through rotation of the roller. By means of the method, various technical problems existing in calculation of the temperature field of the continuous casting roller in the prior art can be solved.

The invention discloses an inclined grating radiation modulation type all-fiber current sensor with dielectric film filtering. The inclined grating radiation modulation type all-fiber current sensor comprises a broadband light source, a 45-degree inclined fiber grating, a lens system, a movable fiber with a dielectric film coating, a fixed fiber, a photoelectric detector and a signal processing unit. The 45-degree inclined fiber bragg grating outputs the S polarization component at a wavelength-dependent radiation angle, and the S polarization component is focused to the end face of a movable optical fiber plated with a dielectric film coating through a lens; the side wall of the movable optical fiber is plated with a permanent magnet alloy layer, the movable optical fiber generates transverse micro-displacement under the action of an alternating magnetic field of current to be measured, and meanwhile, the radiation light receiving efficiency of the movable optical fiber and the coupling efficiency between the movable optical fiber and the fixed optical fiber are modulated; the photoelectric detector detects the light intensity change, and the signal processing unit accurately inverts the current value according to the light intensity change. Compared with the prior art, the current sensor has the advantages of being all-fiber passive, resistant to electromagnetic interference and ambient light interference, good in temperature stability and high in sensitivity, and is suitable for high-precision current detection in complex illumination and electromagnetic environments.

A light emitting device includes plural light sources each having plural light emitting sections configured to emit light individually, in which the plural light sources is driven to light only first light emitting sections that radiate the light toward one region, and the plural light sources includes a partial light source having a radiation angle larger than a radiation angle of another light source.

The lens component (4) radiates light from a light source (2), and the light source (2) has a directional characteristic in which the light intensity decreases as it moves away from the optical axis. The lens component (4) includes a light-guiding radiation portion (20) having a central axis (C1). The first axis (Y) and the second axis (Z) are orthogonal to the central axis (C1) and are orthogonal to each other. The light-guiding radiation portion (20) includes a light incident portion (N) and a plurality of radiation mechanisms (H). The light incident portion (N) has an incident surface (27) for incident light from a light source arranged at a light source position (Q), and the plurality of radiation mechanisms (H) radiate in a plurality of radiation angle ranges (HA). The incident surface (27) includes a near-side incident area (KNA) close to the optical axis (AX1) and a far-side incident area (ENA) arranged farther from the optical axis (AX1) than the near-side incident area (KNA). The radiation angle range (HA) includes a near-side radiation angle range (KHA) and a far-side radiation angle range (EHA). The near-side radiation angle range (KHA) is closer to the first axis (Y) than the second axis (Z), while the far-side radiation angle range (EHA) is farther from the first axis (Y) than the near-side radiation angle range (KHA). Light incident on the near-side incident area (KNA) is radiated toward the far-side radiation angle range (EHA) via the corresponding far-side radiating mechanism (EH). Light incident on the far-side incident area (ENA) is radiated toward the near-side radiation angle range (KHA) via the corresponding near-side radiating mechanism (KH).