1045 results about "Angular range" patented technology

A light emitting system includes one or more first light sources operable to illuminate an environment from a first angular range, one or more second light sources operable to illuminate the environment from a second angular range different from the first angular range, a device comprising a sensor, and one or more processors that determine ambient light properties and first light property values for a spatial zone in the environment using the sensor when directing the one or more first light sources to illuminate the environment, determine second light property values in the environment using the sensor when directing the one or more second light sources to illuminate the environment, and adjust the light flux output of the one or more first light sources and the one or more second light sources based at least on the ambient light properties and the first and second light property values.

The invention provides an aircraft landing gear dismounting and mounting device, belongs to the technical field of aviation equipment, and solves the problem that in the prior art, landing gear dismounting and mounting equipment is difficult to meet the requirements for efficient, accurate and flexible dismounting and mounting in the modern aviation maintenance field. Comprising a frame, a moving frame is arranged on the inner side of the frame, and the moving frame is driven by a first driving device; a moving plate is arranged on the frame and is driven by a second driving device; an arc-shaped guide rail is arranged on the movable plate, a supporting frame is arranged on the arc-shaped guide rail, a lifting device and a fixing device are arranged on the supporting frame, and a clamp is arranged on the top of the lifting device. According to the undercarriage disassembling and assembling device, through cooperative operation of the first driving device, the second driving device and the lifting device, all-directional flexible adjustment of the tool on the X axis, the Y axis and the Z axis is achieved. Due to the design of the arc-shaped guide rail, the supporting frame can flexibly rotate within a certain angle range, and the adaptability and flexibility of the device are further enhanced.

The technical solutions described herein are systems and methods for multi-mode image capture device operation. The system can obtain, from a first image capture device in accordance with a first mode, a first set of images corresponding to a first range of angles about an axis. The system can obtain, from a second image capture device in accordance with the first mode, a second set of images corresponding to a second range of angles about the axis. The system can cause, responsive to an interruption of the first mode, the second image capture device to obtain a third set of images corresponding to the first range of angles about the axis in accordance with a second mode.

The invention discloses a medium presser foot mechanism control method and a medium presser foot mechanism, and the method comprises the following steps: a control unit controls the rotation of a main shaft motor, a medium presser foot motor and a feeding motor according to a target pattern parameter, and obtains a target sewing stitch; the control unit obtains a given material pressing angle range from the expected material pressing angle range according to the cloth thickness and the sewing speed; the control unit obtains a given middle presser foot stroke from the expected middle presser foot stroke according to the cloth thickness and the middle presser foot height; according to the middle presser foot mechanism, a motor drives a crank, fisheye connectors A and B, a connecting rod, a pressing rod guide frame and other assemblies, and follow-up vertical movement of a middle presser foot is achieved. A motor is fixed through a support, an output shaft is connected with a driving crank, and the driving crank drives a fisheye connector A to be connected with a connecting rod and transmits motion to a pressing rod and a middle pressing foot. The pressing rod guide frame plays a guiding role and limits rotation of the pressing rod. The induction plate is arranged on the driving crank, when the middle presser foot is lifted to the highest point, the sensor can sense the induction plate, and position feedback is achieved.

The invention relates to a calibration method, device and equipment of a laser scanning galvanometer performance detection device. The method comprises the steps that a laser is controlled to emit laser, a rotating table and / or a scanning galvanometer are / is controlled to rotate until a position sensitive detector detects that a light spot of the laser is located at a preset zero point position, and the deflection angle of the rotating table is determined as an initial angle; determining an angle range based on the initial angle and a preset angle, controlling the rotating table to rotate in the angle range, and obtaining light spot positions detected by the position sensitive detectors at multiple angles in the angle range; based on the light spot positions at the multiple angles, calibration parameters in the target calibration function are solved; the solved target calibration function is used for carrying out performance detection on the scanning galvanometer. By adopting the method, the laser scanning galvanometer performance detection device can be automatically calibrated.

Endoscope has vertical bending operation wires transmitting a pulling force to a bending portion of an insertion portion, a vertical bending pulley having pulley grooves on an outer circumference, and wire guides in a partial region in a circumference direction of each pulley groove and guiding the vertical bending operation wires to be wound in the respective pulley grooves. The pulleys rotate within a 180-degree angular range, and a width of a bottom portion of each pulley groove allows each wire to be wound for at most two revolutions. The width of the bottom portion of the pulley groove is narrowed down with each wire guide so that each wire is wound only one revolution in a rotation axis direction of each pulley, and a tapered shape of each wire guide guides the wire to be wound in the partial region to the bottom portion of each pulley groove.

The present invention relates to a shield tunnel segment dislocation measurement method based on three-dimensional laser scanning, mainly solving the technical problems of low efficiency, high cost, unsafe high-altitude operation, etc., of existing manual shield tunnel segment dislocation amount measurement technology. The method comprises the steps of: S1, generating a grayscale image on the basis of tunnel laser point cloud data, and performing edge detection on the grayscale image; S2, on the basis of the edge-detected image, collecting statistics about column grayscale cumulative values of the edge-detected image, and realizing circumferential joint position identification by means of threshold determination; S3, selecting a certain angle range on the left and right of a circumferential joint to divide different intervals, collecting statistics about an interval densest radial vector, and calculating a circumferential joint dislocation amount; S4, designing a feature convolution kernel on the basis of shape features of a longitudinal joint, and using the feature convolution kernel to perform convolution calculation on a segment grayscale image in a sliding window manner to identify the position of the longitudinal joint; and S5, selecting point cloud data within a certain range on the left and right of the longitudinal joint, screening for local valid points, and calculating a longitudinal joint dislocation amount. The present invention achieves automatic identification of a longitudinal joint of shield tunnel segments and rapid measurement of a dislocation amount.

The invention relates to the technical field of geophysical exploration equipment, and particularly discloses a double-top umbrella type multi-angle adjustable transient electromagnetic transmitting coil array detection device which comprises a main supporting system, a framework supporting system, a coil system, a multi-angle adjusting mechanism and a rapid storage system. The device has the beneficial effects that accurate adjustment in a continuous angle range is realized, and the adaptability of the device to different exploration environments is improved; a double-coil system design is adopted, so that two typical working modes are realized; in structural design, a double-top umbrella type folding structure is combined with a light-weight material, so that the weight of equipment is reduced. According to the device, conversion of multiple detection modes is achieved, traditional multiple fixed angle devices are replaced, the equipment investment cost is reduced, and the equipment operation efficiency is improved.

The invention provides a light beam scanning device of an integrated photonics chip and a test method. The light beam scanning device of the integrated photonics chip comprises a chip sample table, a chip sample table base, a light beam receiver connected with a lens cone and a horizontally arranged turntable base, the lens barrel is arranged above the turntable base, and a diaphragm adjusting structure and at least four lens groups are arranged in the lens barrel; the central point of the chip sample table base is overlapped with the central point of the turntable base, the chip sample table base is positioned above the turntable base, and the chip sample table is vertically arranged at the central point of the chip sample table base. Through switching of different lens groups in the lens cone, measurement of far and near fields of the to-be-tested chip is realized by using the same lens cone, the lens cone is arranged on the turntable base, and the test angle range can be adjusted according to specific test requirements so that various chip test requirements can be met.

The invention discloses a cutting saw blade and a cutting device, and belongs to the technical field of cutting tools, the cutting saw blade comprises a saw blade body, a tool bit assembly is arranged at the outer diameter of the saw blade body, the tool bit assembly comprises a first tool bit and a second tool bit, the radial outer end points of the first tool bit and the second tool bit are located on the same circle, and the radial outer end points of the first tool bit and the second tool bit are located on the same circle. The first tool bit and the second tool bit comprise a first cutting face and a second cutting face, the first cutting face and the radius where the outer end point of the first tool bit is located form a first cutting angle, and the second cutting face and the tangent line where the outer end point of the first tool bit is located form a second cutting angle. The angle range of the first cutting angle and the second cutting angle is 10 degrees to 15 degrees. The cutting device comprises the cutting saw blade and further comprises a cutting tool and a control assembly, the cutting saw blade and the control assembly are arranged on the two sides of the cutting tool respectively, a cutting track is arranged on the cutting tool, and the cutting saw blade reciprocates along the cutting track.

A method of testing a vehicle includes positioning the vehicle on a dynamometer, operating a propulsion system to rotate drive wheels at a one or more predetermined speeds while actively adjusting a rotational position of a steering wheel to maintain straight vehicle travel on the dynamometer, measuring angle data of the steering wheel during the active adjusting of the rotational position of the steering wheel, checking the measured angle data to determine if it is outside a predetermined angular range, and outputting, in response to the angle data being outside the predetermined angular range, at least one of a repair ticket and a vehicle fault code.

The application provides an angle of arrival measurement method, an electronic device, a readable storage medium and a chip, and relates to the technical field of wireless positioning. The method is applied to an electronic device, and the electronic device comprises a first antenna and a second antenna. The antenna radiation field patterns of the first antenna and the second antenna are similar within a first angle range around the electronic device and are not similar within a second angle range around the electronic device. The method comprises the following steps: determining the difference between target parameters measured by the first antenna and the second antenna according to a wireless signal; determining the angle of arrival range of the wireless signal according to the difference; wherein the angle of arrival range is the first angle range or the second angle range; and measuring the angle of arrival of the wireless signal by using the first antenna and the second antenna according to the angle of arrival range. The technical scheme provided in the embodiment can improve the accuracy of angle of arrival measurement.

The invention provides a full-section detection method, device and equipment for reinforcing a steel rail welding seam and a storage medium, and relates to the technical field of nondestructive testing. The method comprises the following steps: respectively arranging a plurality of first phased array probes on rail head treads and rail bottom surfaces of a first steel rail and a second steel rail, and arranging a second phased array probe right above a welding seam; the detection method comprises the following steps: determining optimal parameters of a transducer based on the material of the steel rail, the size of the cross section of the steel rail and the sound pressure intensity at a preset focusing depth position; determining the optimal scanning angle range of the first phased array probe based on the propagation velocity of the ultrasonic longitudinal wave in the wedge block and the steel rail, the propagation velocity of the ultrasonic transverse wave in the steel rail and the Snell's law; and controlling the first phased array probe to carry out sector scanning imaging within the optimal scanning angle range, and controlling the second phased array probe to carry out zero-degree line scanning imaging, so as to detect the full section of the welding seam. According to the invention, the welding seam can be accurately detected without dismounting the clamping plate.

An electronic device is provided. The electronic device includes a housing including a first housing and a second housing, a hinge unit configured to enable the first housing and the second housing to rotate, a first display disposed in the first housing and the second housing, at least one camera, at least one sensor, at least one processor, and memory storing instructions, wherein the instructions, when executed by the at least one processor individually or collectively, cause the electronic device to identify, by using the at least one sensor, whether the electronic device is in a folded state within a specified angular range, identify whether an object is detected in an image acquired by means of the at least one camera, and based on the electronic device being folding within the specified angle range and the object being detected within the image, activate an auto-framing function.

The present invention provides a computer-implemented method for X-ray analysis. The method includes receiving X-ray analysis data from an X-ray detector having multiple detection channels. The X-ray analysis data includes angular scan intensity data obtained by measuring X-ray intensities when successively scanning the X-ray detector. A series of intensity measurement values ​​is acquired for each detection channel. Each series of intensity measurement values ​​is an intensity angular scan. An angular offset is determined for each detection channel. The method further includes determining, for each of a plurality of detection angle bins, an intensity contribution factor for at least one of the intensity measurements. The intensity contribution factor is determined according to an angle range associated with the detection angle bin and the angular offset of the detection channel. For each of the plurality of detection angle bins, a binned intensity is determined based on the intensity of the at least one intensity measurement value and its corresponding intensity contribution factor.

The utility model provides an optical module, a vehicle lamp and a vehicle. The optical module includes: a light source; the light shielding plate is arranged on the light emitting side, away from the light source, of the light condenser and is located in the middle of the light condensing module in the vertical direction, and a cut-off line forming structure extending in the front-back direction is arranged in the middle of the light shielding plate in the width direction; wherein the cross section of the cut-off line forming structure comprises a first inclined section AB, a horizontal section BC and a second inclined section CD which are sequentially arranged from the middle part to one side and are connected, coordinates of two ends of the horizontal section BC are respectively B (0, 0.57) and C (k, 0.57), and an included angle ABC between the first inclined section AB and the horizontal section BC is 135 degrees; the angle range alpha of the included angle BCD between the second inclined section CD and the horizontal section BC is larger than or equal to 160 degrees and smaller than 180 degrees; wherein k ranges from 2.5 to 3.5.

An impeller includes a hub having an axial direction as a rotation axis and extending from a first end to a second end, and including an end surface and a first wall. The end surface is positioned at the first end of the hub, one end of the first wall extends around an entire periphery of the end surface and radially outwardly extends at an angle toward the second end in the axial direction. A length of extension of the first wall is greater than 50% of a length of extension of the hub. The impeller further includes a plurality of blades, the proximal ends of which extend from the periphery of the hub in a radial direction. A predetermined range of angle is formed between the first wall and the axial direction, and the predetermined range of angle is between 3 degrees and 45 degrees.

The invention relates to the technical field of electron microscopic imaging, in particular to a correction method and device for geometric distortion in scanning electron microscope measurement, computer equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring a scanning electron microscope image of a standard sample; calculating an orthogonal included angle parameter and a length-width ratio parameter of the scanning electron microscope image; iteratively adjusting the angle correction parameter and the gain correction parameter under a fixed scanning rotation angle until a preset local calibration constraint condition is met; verifying the orthogonal included angle parameter and the length-width ratio parameter under each scanning rotation angle; and when the orthogonality included angle parameter and the length-width ratio parameter do not meet a preset global stability constraint condition, adjusting a relative gain coefficient, and re-executing calibration verification under each scanning rotation angle until a full-angle correction requirement is met. By adopting the method, high precision and stability of imaging correction can be kept in a full-angle range.

The invention belongs to the technical field of equipment screen angle adjustment, and aims to solve the problem of low efficiency of a method for rotating a computer screen by adjusting a mechanical bracket. The invention provides a method and a system for dynamically adjusting the posture of a notebook screen. The method comprises the following steps of: acquiring facial feature information of a user in front of the screen in real time; determining a current face rotation angle of the user based on position parameters of feature extraction points in the face feature information; obtaining an optimal angle range of a notebook computer screen based on the face rotation angle and a preset optimal vertical view field of a user; and controlling the notebook screen to perform angle adjustment based on the optimal angle range. The automatic rotation function of the screen can be achieved, the computer screen directly faces the face and eyes of a user in real time, the sitting posture of the user can be corrected, and the eyesight of the user is protected.

A level tool for use in bending electrical wiring conduits comprises a frame, a carrier coupled to the frame and rotatable relative to the frame through an angular range, and a bubble level carried by and rotatable with the carrier through the angular range. The frame includes a first face plate, a second face plate, and a spacer between the first and second face plates, wherein the spacer includes an open mouth arranged to allow a user to view the bubble level from above and from a side of the level tool. The first and / or second face plates may have a bubble window to enable viewing of the bubble level from the front and / or rear of the level tool and an indexing slot cooperating with an indexing element on the carrier for selectively setting a rotational angle of the bubble level at one of several predetermined angular settings.

The invention discloses a self-adaptive optimization method for a heading beacon directional diagram. The method comprises the following steps: initializing LOC antenna array element parameters and obstacle parameters; calculating the angle range of the LOC antenna radiation field influenced by the obstacle; respectively designing expected directional diagrams of CSB signals and SBO signals radiated by the LOC antenna; the directional diagrams of CSB signals and SBO signals radiated by the LOC antenna are adaptively optimized; and evaluating the channel performance of the optimized optimal directional diagram. According to the method, the characteristic of robustness of the adaptive processing technology is fully utilized, the feed amplitude and the feed phase of the heading beacon antenna are adaptively calculated according to the area range of the radiation field influenced by the obstacle, and the horizontal guiding performance of an existing dual-frequency heading beacon system on an airplane can be improved on the premise that the number of antenna array elements is not increased. When the course beacon system is installed and debugged, the feed amplitude and phase can be adjusted in a self-adaptive mode according to the airport environment, and the installation and debugging workload is reduced.

X-ray systems, including apparatus, methods, and medium-encoded computer program products, to obtain computed tomography scan data (e.g., for limited angle computed tomography) include: a stationary X-ray source; and at least one detector configured to obtain limited angle computed tomography scan data of an object, the limited angle computed tomography scan data including projections of the X-rays after interaction with the object having been moved through an angular range with respect to at least one straight line between the stationary X-ray source and the at least one detector, and a conveyor system moves the object in a product handling line, a component of the conveyor system rotates the object around an axis that is normal or oblique to a travel direction of the conveyor system, and the scan data includes the projections of the X-rays after the interaction with the object having been rotated through the angular range around the axis.

An eyewear display device expands a field of view by projecting display light at multiple ranges of input angles to a waveguide (600) employing multiple portions of an incoupler (514) or multiple incouplers (514, 414) corresponding to the different angular ranges of display light to guide light to an exit pupil expander (416) configured to receive the display light from the different angular ranges and an outcoupler (608) that are sized to fit within an eyeglasses lens. The display light that is input from the different angular ranges is guided by the incouplers to be overlapped at an exit pupil expander (or, in some embodiments, at multiple exit pupil expanders that are overlaid with each other) to reduce the total ray footprint at the exit pupil expander.

The invention relates to a wafer surface defect detection device, and belongs to the field of wafer surface defect detection. The wafer surface defect detection device comprises a first photoelectric conversion part and a stray light elimination part, wherein the first photoelectric conversion part is arranged to generate a first electric signal in response to scattered light in a first angle range; the stray light eliminating part is arranged in front of the first photoelectric conversion part along the light transmission direction, the stray light eliminating part is arranged to eliminate stray light signals generated by an optical machine, and the intensity of the stray light signals is greater than that of background signals caused by wafer surface roughness. The stray light eliminating component which is uniformly designed is placed in front of the first photoelectric conversion component, stray light signals generated by an optical machine can be eliminated, weak scattering signals corresponding to smaller particles are collected into the first photoelectric conversion component, one-to-one correspondence of a polaroid and a diaphragm in the spatial position does not need to be established, the overall mechanical structure is simple, and the cost is low. And the mechanical design and adjustment requirements are reduced.

Described herein are systems and techniques for underwater leak detection and monitoring. Georeferenced location information of a seafloor lander can be determined based on location information of marker buoys deployed to the seafloor surface. Acoustic sensor data can be obtained from an acoustic sensor rotatably coupled to the seafloor lander, wherein the acoustic sensor is rotated through a configured angular range one or more times. An onboard processing engine of the seafloor lander can perform in-situ detection of gaseous leaks from the seafloor surface by analyzing the acoustic sensor data. A corresponding location of the gaseous leak can be determined based on the georeferenced location information of the seafloor lander and relative position information between the acoustic sensor and the one or more gaseous leaks. The seafloor lander can transmit leak detection information indicative of the one or more gaseous leaks and the corresponding location to a surface receiver.

The invention provides a driver distracted driving detection method and device, terminal equipment and a program product, and the method comprises the steps: obtaining a real-time image of a vehicle driven by a driver when the driving speed of the vehicle is greater than a preset speed threshold value; determining a real-time head pose and a real-time sight angle corresponding to each real-time image; the real-time head pose comprises a real-time head pitch angle and a real-time head yaw angle; the real-time sight angle comprises a real-time sight pitch angle and a real-time sight yaw angle; if the continuous preset number of the real-time head poses are within the preset head pose range and the real-time sight angles exceed the preset sight angle range, it is judged that the driver has the distracted driving behavior. According to the method, whether the driver has the distracted driving behavior or not can be judged by combining the real-time head posture and the real-time sight angle of the driver in the vehicle driving process, whether the driver has the distracted driving behavior or not can be more accurately determined, and misjudgment is avoided.

The invention provides a low-scattering carrier for darkroom background level evaluation test, and relates to the technical field of target far-field electromagnetic scattering characteristic test, the low-scattering carrier is a hollow structure formed by seamless connection of an upper surface and a lower surface; the upper surface comprises a plurality of smooth curved surfaces with continuous curvatures, and the lower surface is a smooth plane; the forward direction of the low-scattering carrier is a sharp needle-shaped tip; and the lower surface is provided with a circular truncated cone hole for embedding a two-dimensional rotating top at the top end of the metal bracket and a connecting structure for connecting and fixing the two-dimensional rotating top. The forward direction of the low-scattering carrier provided by the invention is a sharp needle-shaped tip, so that the low-scattering carrier can be ensured to have a low-scattering characteristic in a relatively wide angular domain range in the forward direction, strong RCS scattering of the two-dimensional rotating top can be shielded, the RCS of the metal bracket can be measured more accurately, and a more accurate darkroom background level can be further obtained.

The invention provides an ion beam irradiation configuration optimization method based on a computer storage medium, and aims to improve treatment accuracy and effectiveness. According to the method, image data of a target area are obtained through three-dimensional scanning, three-dimensional discretization processing is carried out, and a voxel angle range matrix is constructed. The preference of each voxel for different ion beam energy is quantified by using a favor value function, and the energy layer of each angle is dynamically calculated and distributed in combination with the optimization of the irradiation angle. The system can monitor feedback data in real time, automatically adjust energy configuration and irradiation angle, and ensure optimal energy coverage of a target area. According to the method, the treatment effect is improved, damage to normal tissue is reduced by accurately controlling energy transmission, and the safety and efficiency of treatment are improved. Through the optimization and dynamic adjustment mechanism, a personalized treatment scheme can be provided for each patient, and efficient and accurate treatment on a complex target region is achieved.

The invention relates to the technical field of unmanned aerial vehicle application, and discloses a multi-degree-of-freedom dynamic light field system based on an unmanned aerial vehicle, a cooperative control method of the multi-degree-of-freedom dynamic light field system and a dynamic light field device. The ground control station is used for editing programs and sending instructions; the unmanned aerial vehicle group is composed of a plurality of unmanned aerial vehicles carrying the dynamic light field devices; the communication unit is used for establishing a data link between the ground control station and the unmanned aerial vehicle group; and the main controller on each unmanned aerial vehicle sends cooperative control signals to the flight control system, the first driving mechanism and the second driving mechanism of the unmanned aerial vehicle. Through the synergistic effect of the first driving mechanism and the second driving mechanism, the rotation of the rotating drum in the vertical direction can be controlled, and meanwhile, the rotation of each ball head assembly in the horizontal direction can also be controlled, so that irradiation of each laser module in different azimuth angles within a certain angle range can be realized, and the display effect of the unmanned aerial vehicle group light curtain is improved.

The invention discloses a regenerated wafer scanning method, and relates to the technical field of semiconductor wafer scanning, and the method comprises the steps: obtaining the identification information of a target wafer transmission box when the target wafer transmission box is detected; detecting the in-place state of the wafer through a light curtain sensor, and generating a slot mapping table; controlling a preset micro-rotation mechanism to carry out micro-rotation on the wafer at each slot position within a set angle range, and collecting an annular structure light image; constructing polar coordinates and calculating a first attitude angle of each wafer; driving a micro-rotation mechanism to adjust the wafer to a preset reference angle according to the first attitude angle to obtain a standard attitude wafer; the mechanical arms are driven to be sequentially conveyed to a scanning station; respectively controlling a rotary positioning module to rotate in a first angle range and a second angle range, and acquiring a coded image and a spectral image; the wafer code is analyzed, confidence verification is carried out, and a wafer process type label is identified; and warehousing and recording the wafer codes, the process labels and the transmission box identification information. According to the invention, the storage management efficiency of the regenerated wafer can be effectively improved.