57 results about "Radiation angle" patented technology

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 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 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.

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 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 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.

This application discloses a ceramic heating device, comprising: a heating mechanism, an adjusting mechanism, and a lifting mechanism. The heating mechanism includes one or more heating components, each of which includes a heating housing and multiple heating plates sequentially mounted on the heating housing in a left-right direction. The adjusting mechanism includes a pair of arc-shaped support plates arranged opposite each other, each arc-shaped support plate having an arc-shaped groove. The one or more heating components are arranged sequentially along the extension direction of the arc-shaped groove, and the two ends of each heating housing are respectively rotatably and slidably engaged with the arc-shaped grooves of the pair of arc-shaped support plates. The lifting mechanism includes a pair of lifting components that drive the pair of arc-shaped support plates to move synchronously in a up-down direction. The lifting mechanism and adjusting mechanism of this application work together to adjust the radiation range and radiation angle of the heating mechanism, realizing multi-angle and multi-directional heating of the sheet on the rollers of the three-roll calender, reducing energy consumption, and facilitating the cleaning and maintenance of the rollers.

A communication apparatus includes a communication unit and a control unit. The communication unit forms a beam and performs communication with another communication apparatus. The control unit acquires identification information of the beam used for the communication with the another communication apparatus. The control unit displays radiation information regarding at least one of a radiation angle or a radiation direction of the beam corresponding to the identification information on a display apparatus.

The invention relates to a method and a device for projecting a laser image (18) on a workpiece (22). The method comprises the following steps: providing a laser projection system (10) having a laser projection unit (11) by means of which a laser beam (14) can be generated; a deflection device (16), by means of which the radiation angle of the laser beam (14) can be adjusted and by means of which at least one light-sensitive detection device (13) can be detected, the laser projection system (10) comprising a plurality of light-emitting devices (15), by means of which light detected by the detection device (13) can be generated, and wherein the light-emitting devices (15) are arranged such that the light-sensitive detection device (13) can be detected by means of the deflection device (16). The lighting means (15) each have a control unit, by means of which the lighting means (15) can be activated and deactivated; arranging the light-emitting device (15) on the workpiece (22) and / or in a fixed positional relationship with the workpiece (22) in such a way that light energy generated by means of the light-emitting device (15) is detected by means of the detection device (13); activating one or more light-emitting devices (15) in such a way that the activated light-emitting devices (15) emit light that can be detected by means of the detection device (13); detecting light emitted by at least some of the activated light-emitting devices (15) by means of the detection device (13); determining a spatial relationship between the workpiece (22) and the laser projection unit (11), the spatial position of the lighting device (15) detected by means of the detection device (13) being evaluated in order to determine the spatial relationship between the workpiece (22) and the laser projection unit (11); a laser projection is generated on the basis of the determined spatial relationship between the workpiece (22) and the laser projection unit (11).

To provide a firearm (10) with an illumination module (1) and a holster (100) to accommodate a firearm (10), wherein practicality and efficiency of the firearm (10) and the holster (100) is improved while also increasing gun safety in using said firearm (10) and holster (100), wherein the illumination module (1) comprises a lens array (2) with at least two lenses (21, 22), wherein a first one of the at least two lenses (21, 22) of the lens array (2) emitting a first cone-shaped light beam (LB1) with a first radiation angle (α1) and a second one of the at least two lenses (21, 22) of the lens array (2) emitting a second cone-shaped light beam (LB2) with a second radiation angle (α2), wherein the first radiation angle (α1) of the first light beam (LB1) and the second radiation angle (α2) of the second light beam (LB2) are different and in that the holster (100) comprises a locking mechanism (110) with a locking element (120) and an actuator element (130), wherein the locking element (120) is movable between a locking position (LP), in which the firearm (10) is locked in the holster (100), and an unlocking position (UP), in which the firearm (10) may be removed from the holster (100).

This application provides a circularly polarized antenna and an electronic device. The circularly polarized antenna includes a ring radiator, a feeding assembly, and a second adjustment assembly. The ring radiator consists of multiple arc-shaped radiating segments, adjacent of which are connected by the first adjustment assembly. The first adjustment assembly adjusts the capacitance parameters between adjacent arc-shaped radiating segments. The feeding assembly is connected to a feeding point located at one end of an arc-shaped radiating segment. The ring radiator and the feeding assembly form a first-band antenna to receive signals at a first frequency. The second adjustment assembly is connected to a ground point on the ring radiator and adjusts the equivalent length of a second-band antenna to receive signals at a second frequency. The ground point is located on an arc-shaped radiating segment, and the second-band antenna includes an arc-shaped radiating segment between the feeding point and the ground point and the first adjustment assembly. The circularly polarized antenna of this application can solve the problem of limited radiation angle in traditional circularly polarized antennas.

The invention provides a small medical institution medical waste intelligent temporary storage supervision method, which comprises the following steps: acquiring ultraviolet radiation intensity data of a plurality of positions in a medical waste accumulation area, analyzing a local shielding effect caused by an accumulation geometrical shape and a surface roughness degree, and obtaining spatial non-uniform distribution data of ultraviolet radiation; acquiring air humidity and dust concentration data in the medical waste accumulation area, and calculating an environmental interference factor; according to the deviation degree, the lamp tube performance reduction degree and the environmental interference factor, a decision tree algorithm is adopted, the radiation intensity gradient, the dose saturation point and the tolerance corresponding to the pathogenic microorganism type are input, and an optimized disinfection duration parameter is obtained; by optimizing disinfection duration parameters and updating automatic switch control logic, an ultraviolet disinfection lamp operation time table based on radiation angle deviation adjustment is generated, and a dynamic disinfection task plan is determined.

The invention discloses a transition radiation polarized wave regulation and control method and system based on an isotropic material. The regulation and control method comprises the following steps: calculating an equivalent current according to an oblique incidence electronic pulse velocity vector and converting the current into a frequency and wave number space; calculating an electron radiation field equation and an interface radiation field equation according to the Maxwell equation set; solving the electron radiation field equation and the interface radiation field equation to obtain an electron radiation field and an interface radiation field; adopting a phase matching algorithm to calculate a total field on two sides of the regulation and control material interface; calculating a transverse magnetic wave far-field radiation angular spectrum and a transverse electric wave far-field radiation angular spectrum excited during electron incidence by adopting boundary phase matching; and regulating and controlling the separation of the transition radiation polarized waves in space according to the relationship between the calculated energy angular spectrum spatial distribution of the transition radiation field and the incident angle of the electronic pulse and / or the electromagnetic parameters of the regulation and control material. According to the invention, the problem that excitation of different modes of transition radiation waves and separation of different modes of radiation fields in space are difficult to autonomously regulate and control in the prior art is solved.

The invention discloses a bottom material monitoring device for a spent fuel dissolving device, and relates to the technical field of nuclear chemical engineering, and the bottom material monitoring device comprises an outer shielding shell which is internally provided with an accommodating space and is externally provided with a groove for accommodating the bottom of the spent fuel dissolving device; the moderation body is arranged in the accommodating space and surrounds the bottom of the groove; the neutron detectors are arranged in the moderator and surround the bottom of the groove, and in the technical scheme, the neutron detectors surround the bottom of the groove, so that the neutron detectors cover a larger radiation angle of a material area at the bottom; and the sediment signal capturing efficiency is obviously improved. According to the arrangement mode, bottom signals can be focused, side wall and top interference is reduced, neutron flux can reflect the material condition in a more concentrated mode, and therefore the measurement precision of the spent fuel dissolving device bottom material mass is improved.

An example electronic device for controlling a base station antenna in a wireless communication system includes a communication unit; and at least one control unit electrically connected to the communication unit. The at least one control unit may be configured so as to acquire location information of another electronic device, determine a threshold value based on the location information, determine a radiation angle corresponding to the threshold value, transmit a steering instruction to a base station so as to control an antenna based on the radiation angle, and determine whether the steering of the antenna based on the radiation angle has been carried out or not.

The invention discloses a radar-based target detection method, electronic equipment, a vehicle, a computer readable storage medium and a computer program product. The method comprises the steps that a radiation pattern is determined according to radar data, and the radiation pattern is used for indicating the mapping relation between the radiation angle and the radiation power; and according to the radiation angle and / or radiation power of the lobes in the radiation pattern, a target detection result is determined, and the target detection result comprises the number of the detection targets. Thus, the target detection result is determined according to the radiation angle or the radiation power of the lobes in the radiation pattern obtained based on the radar data, and the accuracy of judgment of the number of detected targets can be improved. Moreover, compared with a mode of judging single and double targets based on machine learning, the target detection result can be determined according to the radiation angle or the radiation power of the lobes in the radiation pattern, so that the calculation amount and the complexity are reduced to a certain extent, and the calculation efficiency is improved.