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287 results about "Far distance" patented technology
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A method for numerically sorting material properties using distance and reflection intensity
ActiveCN116256337BScattering properties measurementsManufacturing computing systemsFar distanceOptics
Owner:ZHONGSHAN KEWEI PHOTOELECTRIC TECH CO LTD
Wide-range high-precision multi-structure optical sensor calibration method and system
The invention discloses a wide-range high-precision multi-structure optical sensor calibration method and system. The method comprises the following steps: completing combined installation of an optical platform; the guide rail is controlled to move away from the device from the initial distance, after movement is completed according to the preset step length, data are sequentially collected through the structured light sensor, the grating ruler position of the calibration block is recorded, and all data are collected until the calibration block moves to the farthest distance; recording an X coordinate corresponding to each circle center on the calibration block, and recording a moving coordinate of the guide rail as a Y coordinate by a grating ruler; all circle centers are recognized on the 2D image of each position, coordinates of the circle centers in a camera coordinate system are obtained, world coordinates on the calibration blocks are combined, world coordinates corresponding to all 3D coordinates output by the camera are calculated through interpolation, and a calibration record table is formed; and combined calibration of multiple sensors is completed. And reliable technical support is provided for multi-sensor fusion measurement.
Owner:WUHAN HANNING TECH
Positioning mapping method combined with attitude of unmanned ship
The invention relates to the technical field of navigation and positioning, in particular to an unmanned ship attitude-combined positioning mapping method, which comprises the following steps of: acquiring laser point cloud data and ship attitude information; constructing a dynamic height filtering window, and eliminating water surface reflection noise points; density clustering parameters are adjusted, and spatial isolated point clusters are eliminated; positioning and mapping are realized through tight coupling optimization; in the prior art, a fixed threshold filtering scheme is adopted, and inshore structure reservation and long-distance noise elimination are difficult to consider, so that wharfs, reefs and other characteristics in lake surface mapping are mistakenly deleted or a large number of water surface false points are remained; according to the scheme, a ship attitude adaptive dynamic height filtering window is innovatively provided, the filtering boundary is intelligently scaled in a wave disturbance environment through fusion of radar real-time height, point cloud statistics and a horizontal distance segmentation adjustment mechanism, specular reflection false points and wave false point clusters are accurately eliminated, and nearshore topographic features are completely reserved; and the structural integrity and the space authenticity of the water surface map are obviously improved.
Owner:JIANGSU UNIV OF SCI & TECH
Far-field simulator and optical test system including same
PCT designated stageWO2025244205A1Satellite communication transmissionOptical elementsFar distanceBeam splitter
Disclosed in the present invention are: a far-field simulator that simulates a beam in a form of propagation from a remote point; and an optical test system including same. The far-field simulator comprises: a beam splitter configured to split an incident beam into a first beam and a second beam; a first far-field simulation unit configured to increase the curvature of a wavefront of the first beam passing through the beam splitter to simulate the first beam in a form of propagation from a remote point; and a second far-field simulation unit configured to increase the curvature of a wavefront of the second beam passing through the beam splitter to simulate the second beam in a form of propagation from a remote point, wherein the first beam emitted through the first far-field simulation unit is formed to have a greater diameter than the diameter of the second beam emitted through the second far-field simulation unit.
Owner:TELEPIX CO LTD
intercoms
1. The name of the designed product: intercom. 2. The use of the designed product: for long-distance communication. 3. The design points of the designed product: in shape. 4. The picture or photo that best shows the design points: Design 1, perspective view 1. 5. Design 1 is designated as the basic design.
Owner:HYTERA COMM CORP
Hand-held telescope rangefinder (SW-1000X)
1. The name of the design product: hand-held telescope range finder (SW-1000X). 2. The use of the design product: for long-distance observation and has ranging function. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.
Owner:SNDWAY TECH (GUANGDONG) CO LTD
Underwater radio frequency communication and imaging through surface electromagnetic waves
PendingUS20260121768A1Individually energised antenna arraysTransmissionFar distanceCommunications system
Methods, systems, and devices for underwater communication are described. In some examples, a communication system may comprise a transmitter configured to excite surface electromagnetic waves along a water surface, utilizing the water surface as a superlens to focus the intensity of the excited surface electromagnetic waves from an object plane of the transmitter through the water surface. The transmitter may be further configured to communicatively couple with a receiver that may be configured to detect the surface electromagnetic waves propagated from the transmitter across the water surface. Some implementations enable efficient underwater radio communication and imaging over significant distances, leveraging the superlensing effect of surface electromagnetic waves for enhanced signal propagation and reception.
Owner:SALTENNA LLC
Onboard reader (drone RFID)
1. Name of the design product: airborne reader-writer (drone RFID). 2. Use of the design product: used on drones to achieve long-distance reading of tower labels. 3. Design points of the design product: combination of shape and pattern. 4. Picture or photo best indicating the design points: perspective view.
Owner:BEIJING SMARTCHIP MICROELECTRONICS TECHNOLOGY CO LTD
Method, device and electronic equipment for locating a distant target
The application provides a positioning method and device for a long-distance target and electronic equipment, and belongs to the technical field of target identification and positioning. In the positioning method, a sparse point cloud that cannot be identified at a long distance is utilized, the sparse point cloud is screened, a screened sparse point cloud is obtained, the longitude and latitude coordinates of the screened sparse point cloud and the real-world longitude and latitude coordinates of a to-be-determined region are determined, target sparse point clouds belonging to the to-be-determined region in the screened sparse point cloud are determined, the target sparse point clouds are part of the point cloud of the long-distance target, the longitude and latitude coordinates of the frontmost point cloud in the target sparse point cloud are taken as the outer contour position of the long-distance target, and the outer contour of the long-distance target can be accurately positioned.
Owner:中电信数字城市科技有限公司
Binoculars (ZT059)
1. The name of the design product: binoculars (ZT059). 2. The use of the design product: binoculars for observing things at a distance. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.
Owner:GUANGZHOU MINGYUAN OPTICAL TECH CO LTD
intercoms (T330-T338)
1. The name of the design product: intercom (T330-T338). 2. The use of the design product: for long-distance communication. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: Design 1 perspective view 1. 5. Design 1 is designated as the basic design.
Owner:ZHONGRUIKE TECH CO LTD
Autonomous recovery method and system for underwater robot based on binocular vision and multi-source fusion
This invention relates to the field of underwater robot technology, specifically to an autonomous recovery method and system for underwater robots based on binocular vision and multi-source fusion. The system includes an AUV and a recovery platform. The AUV is equipped with a binocular camera, IMU, DVL, and USBL. The recovery platform is equipped with a guide light array, an auxiliary light source, a pressure sensor array, and a recovery cage. The method includes four stages: long-distance repositioning, high-precision visual guidance, multi-source fusion control in the visual failure zone, docking determination, and fixation. In the visual failure zone, the system activates the bottom auxiliary light source and constructs a multi-source fusion framework. It deeply fuses the two-dimensional deflection angle of the auxiliary vision, the high-frequency attitude of the IMU, the three-dimensional velocity of the DVL, and the absolute position of the USBL, and outputs the six-degree-of-freedom pose of the AUV in real time. This ensures end-effector attitude stability, improves system robustness and environmental adaptability, and solves the problems of not being able to provide complete attitude information and poor anti-disturbance capability in the near-range visual failure zone.
Owner:SU ZHOU SHI HANG ZHI NENG KE JI YOU XIAN GONG SI
Drones (Katana 6-1)
1. The name of the design product: unmanned aerial vehicle (jianmi 6-1). 2. The use of the design product: for an unmanned aerial vehicle, which can realize long-distance cruising, short-distance hovering, aerial photography, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.
Owner:FEIJIAN TECHNOLOGY (SHENZHEN) CO LTD
Intercom (HX-718B)
1.The name of the design product: intercom (HX-718B). 2.The use of the design product: the intercom for realizing long-distance communication. 3.The design points of the design product: the combination of shape and pattern. 4.The picture or photo that best shows the design points: perspective view. 5.The design claimed contains color.
Owner:QUANZHOU NEPTUNE COMM EQUIP CO LTD
intercom (G1)
1. The name of the design product: intercom (G1). 2. The use of the design product: the design product is used for long-distance communication. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.
Owner:SINORISE TECH (SHENZHEN) CO LTD
Multifocal intraocular lens
The multifocal intraocular lens 100 includes a first arm 105, a second arm 110 and an optic 115. The lens 100 is positioned on the pupil 120 instead of the cataractous natural lens of the eye. The optic 115 of the lens 100 has three different zones, each zone is defined with different degrees as per the user's requirement. The first zone 125 provide distance vision, the second zone 130 provides intermediate vision and the third zone 135 provides near vision. The zones defined on the optic 115 are adaptable to contraction and expansion of the pupil 120 and provide clear vision in both said states of the pupil 120.
Owner:BHALE VIKRANT
body of the range finder telescope (PFHM5)
1. The name of the design product: the main body of range finder telescope (PFHM5). 2. The use of the design product: the design product is used for measuring the distance of objects and long-distance observation; wherein the part of the product is used for the main body of range finder telescope. 3. The design points of the design product: in the shape of the claimed part. 4. The picture or photo that best shows the design points: perspective view 1. 5. Other circumstances that need to be explained: the part of the product is claimed for the design, wherein the dotted line part does not constitute the part of the claimed design, and the solid line part is the part claimed for the design.
Owner:SHENZHEN MILESEEY TECH
Apparatus and method for measuring atmospheric transmittance
The application relates to the technical field of atmospheric detection, and particularly provides a device and a method for measuring atmospheric transmittance, the device comprising a sensing and executing layer and a supporting layer, wherein the sensing and executing layer comprises a long-distance subsystem, a short-distance subsystem and a meteorological detection device; the distance between the long-distance subsystem and a measurement target is equal to a to-be-measured distance of the atmospheric transmittance; the distance between the long-distance subsystem and the measurement target is greater than the distance between the short-distance subsystem and the measurement target; the long-distance subsystem and the short-distance subsystem both comprise a multi-spectrum device; the multi-spectrum device of the long-distance subsystem collects a first multi-spectrum radiation image of the measurement target; at the same time, the multi-spectrum device of the short-distance subsystem collects a second multi-spectrum image of the measurement target; the atmospheric transmittance is calculated based on the radiation path difference of the first and second multi-spectrum radiation images; and the meteorological detection device is used for collecting meteorological data of a measurement environment, and the meteorological data is used for compensating for the environmental error of the atmospheric transmittance.
Owner:CHANGCHUN UP OPTOTECH
A wide-range high-precision multi-structured light sensor calibration method and system
The application discloses a wide-range high-precision multi-structure light sensor calibration method and system, and the method comprises the following steps: completing the combined installation of an optical platform; controlling a guide rail to move away from the equipment from an initial distance, and after completing the movement according to a preset step length, sequentially collecting data by using a structure light sensor, and recording the grating ruler position of a calibration block until all the data are collected after moving to the farthest distance; recording the X coordinate corresponding to each circle center on the calibration block, and the coordinate of the guide rail movement is recorded as the Y coordinate; identifying all the circle centers on the 2D image at each position and obtaining the coordinates of the circle centers in the camera coordinate system, combining the world coordinates on the calibration block, calculating the world coordinates corresponding to each 3D coordinate output by the camera by interpolation, and forming a calibration record table; and completing the joint calibration of the multi-sensor.
Owner:WUHAN HANNING TECH
Laser range-finding binoculars
1. Name of the product in this design: Laser rangefinder binoculars. 2. Purpose of this design: This design is an observation device used for long-distance observation and distance measurement. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.
Owner:CHENGDU JINGPIN NIGHT VISION OPTOELECTRONICS TECHNOLOGY CO LTD
walkie-talkie
1. Name of the product in this design: Walkie-Talkie. 2. Purpose of this design: for long-distance communication. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.
Owner:HYTERA COMM CORP
intercoms
1. The name of the designed product: intercom. 2. The use of the designed product: for long-distance communication. 3. The design points of the designed product: in shape. 4. The picture or photo that best shows the design points: Design 1, perspective view 1. 5. Design 1 is designated as the basic design.
Owner:HYTERA COMM CORP
Distance measurement method and electronic equipment
The present application discloses a ranging method and electronic device. The preservation of photons is controlled according to the intensity of the ambient light. When the ambient light intensity is strong, the probability of preserving long-distance photons is increased through a first preset operation, breaking the inherent implementation method of preferentially preserving short-distance photons, and avoiding the problem that long-distance photons cannot be successfully preserved under strong ambient light conditions. When measuring distance, the present application resists interference from strong light environments, improves the probability of preserving photons returned from distant targets, and then generates a dTOF histogram that is more balanced in the time dimension, thereby improving the ranging performance for distant targets. Moreover, when the ranging method is specifically implemented, the exposure time is short, the number of exposures is small, laser energy is not wasted, and the frame rate is high and the ranging time is short. In addition, there is no need to increase additional hardware costs.
Owner:HUAWEI TECH CO LTD
Directional broadcast speaker
1. The name of the designed product: directional broadcast speaker. 2. The use of the designed product: long-distance directional sound wave emitting equipment. 3. The design points of the designed product: the combination of shape and color. 4. The picture or photo that best shows the design points: perspective view. 5. The design contains colors.
Owner:BEIJING HENGXINGKETONG S&T TECH CO LTD
In-situ non-destructive measurement method, medium and device for elastic parameters of multi-thin-layer heterogeneous materials
The application discloses a kind of multi-thin-layer heterogeneous material elastic parameter in-situ nondestructive measurement method, medium and equipment, belong to ultrasonic measurement technical field.The method includes: for the structure to be measured, establish multi-mode ultrasonic propagation multi-parameter model, and calculate the propagation time theoretical value corresponding to each ultrasonic mode, the structure to be measured is multi-thin-layer heterogeneous structure;For the structure to be measured, laser ultrasonic linear scanning is carried out, and the ultrasonic signals of each ultrasonic mode propagating along different directions are collected to obtain linear scanning ultrasonic data set;For selected ultrasonic mode, the propagation time experimental value under different excitation-receiving point combinations is extracted in the ultrasonic signal of the linear scanning ultrasonic data set;For the selected ultrasonic mode, the difference between the propagation time theoretical value and the propagation time experimental value is used as the objective function to minimize, and the elastic parameters of the structure to be measured are inverted using parameter optimization algorithm.The application can realize long-distance, non-contact in-situ nondestructive measurement, and simple operation.
Owner:SHENZHEN INST OF ADVANCED TECH
5G network ultra-remote coverage method, system and device for marine economy, and medium
PendingCN121968118AConfiguration refinementImprove energy efficiency ratioSpatial transmit diversityTransmission monitoringFar distanceAntenna gain
The invention discloses a 5G network ultra-far coverage method, system and device for marine economy and a medium, and belongs to the technical field of wireless communication, and the method comprises the steps: building a geometric propagation relation based on the earth curvature according to the hanging height of an antenna and the height of a terminal device, and calculating a sight distance coverage distance through a geometric figure formed by a base station antenna, a terminal and the earth center; adaptively selecting a working frequency band according to the sight distance coverage distance and the service bandwidth requirement, determining an antenna gain requirement and a beam width requirement according to the wavelength characteristic of the working frequency band, and selecting an antenna; when a time division duplex system is adopted, the cyclic prefix length and the guard interval length are configured according to the propagation time delay so as to expand the coverage distance; and when the frequency of the working frequency band is relatively high, a multi-cell joint receiving and uplink channel quality enhancement technology is configured. According to the method, the sight distance coverage range is accurately calculated by establishing the geometric propagation model based on the earth curvature, and ultra-long-distance coverage of the sea area is realized through frequency band antenna collaborative optimization and frame structure parameter configuration.
Owner:HUANDIAN (FUJIAN) WIND POWER CO LTD