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40results about How to "Fast positioning" patented technology

Fault upstream and downstream judgment method based on instantaneous symmetric component method

The invention discloses a fault upstream and downstream judgment method based on an instantaneous symmetric component method. The fault upstream and downstream judgment method comprises the following steps: S1, monitoring current data of each node of a power distribution network in real time; s2, calculating an instantaneous positive sequence current and an instantaneous negative sequence current of the real-time data by adopting an improved instantaneous symmetric component method; s3, performing primary difference on the instantaneous positive-sequence current and the instantaneous negative-sequence current respectively; s4, comparing the primary differential value of the instantaneous negative-sequence current with a set threshold value, and judging whether the directions of the instantaneous positive-sequence current and the instantaneous negative-sequence current are the same or not; and S5, performing fault section judgment by combining the direction of the instantaneous positive and negative sequence current and the topological structure of the power distribution network. The improved instantaneous symmetric component method is used to obtain the instantaneous positive-sequence current and the instantaneous negative-sequence current, the directions of the instantaneous positive-sequence current and the instantaneous negative-sequence current are analyzed, the fault section can be quickly and accurately positioned, and the cost is reduced.
Owner:SICHUAN UNIV +1

A positioning method of a mobile printing robot, a chip and a robot

This invention discloses a positioning method, chip, and robot for a mobile printing robot, comprising: the mobile printing robot starting to work on paper, acquiring an image of the current walking surface through a camera, and then determining a first boundary of the paper based on the acquired image of the current walking surface; the mobile printing robot determining a second boundary of the paper based on the first boundary, and then determining an initial printing position based on the first and second boundaries of the paper. The mobile printing robot can independently acquire the paper boundaries for positioning, without the need for additional positioning tools, making it convenient to use and reducing the overall cost of the machine.
Owner:AMICRO SEMICONDUCTOR CO LTD

Single-phase earth fault positioning method and system based on zero-sequence current integration

The invention discloses a single-phase earth fault positioning method and system based on zero-sequence current integration, and the method comprises the steps: recording fault transient zero-sequence current data within 0.04 s after a fault occurs at each detection point on a line after the single-phase earth occurs on the line; the method comprises the following steps: firstly, filtering fault transient zero-sequence current data acquired by each detection point within a set period to obtain transient data, then calculating an amplitude within a set time period after a fault, and generating a transient zero-sequence current amplitude sequence of each detection point; the main station calculates a transient zero-sequence current amplitude integral coefficient and an amplitude comprehensive difference coefficient of the detection points at the two ends of each section on the fault line by using the uploaded transient zero-sequence current amplitude sequence data; and the master station carries out positioning according to the calculated transient zero-sequence current amplitude integral coefficient and amplitude comprehensive difference coefficient of each section. The system comprises a data acquisition module, a data processing module, a calculation module and a positioning module. The method can judge the fault section according to the amplitude integral coefficient.
Owner:XIAN THERMAL POWER RES INST CO LTD

High-value target rapid detection and positioning method and system based on ultra-wide rotary scanning remote sensing image

The invention discloses a high-value target rapid detection and positioning method and system based on an ultra-wide rotary scanning remote sensing image, belongs to the technical field of computer algorithms, and is used for realizing high-value target rapid identification and positioning under the remote sensing image. The method comprises the following steps: acquiring an ultra-wide swing-scan remote sensing image, and timestamps, remote sensing satellite orbit data and swing-scan camera parameters corresponding to each column of pixels of the image; according to the data, calculating an overlapping proportion required by a corresponding pixel position in real time, and segmenting the ultra-wide swing-scanning remote sensing image into a plurality of slices with different sizes; taking a plurality of slices with different sizes as the input of a detector, outputting a target detection frame, and mapping the detection frame back to the ultra-wide remote sensing image according to the positions of the slices in the original image; and taking the pixel coordinate of the center of the target detection frame as the image position of the target, and mapping the pixel coordinate of the target to a WGS84 coordinate to complete the detection and positioning of the high-value target. The method is suitable for rapid identification and positioning of high-value targets under remote sensing images.
Owner:HARBIN INST OF TECH

Auxiliary positioning method, device and system for mobile terminal

The invention is suitable for the technical field of mobile positioning, and provides an auxiliary positioning method, device and system for a mobile terminal, and the method comprises the steps: starting a positioning module after a positioning demand is obtained, and transmitting a first type of data string based on a Bluetooth module, the first type of data string comprising a device ID and a position cooperation request; after the positioning module obtains the real coordinate of the current equipment, a second type of data string is sent based on the Bluetooth module, and the second type of data string comprises the equipment ID and the real coordinate of the current equipment; when the Bluetooth module obtains a second type of data string transmitted by other equipment, the real coordinates of the other equipment contained in the second type of data string are analyzed into the virtual coordinates of the current equipment; and successively generating a motion route based on the time sequence of the real coordinate and the virtual coordinate of the current equipment. According to the method, coordinate interaction is carried out by utilizing Bluetooth, so that positioning is assisted, the terminal equipment with slow positioning speed is helped to realize rapid position coordinate acquisition, and the positioning speed is accelerated.
Owner:Z-TECH COMM (SZ) CO LTD

A method, device, equipment and medium for locating a short circuit fault of a converter valve area

The application provides a converter valve area short-circuit fault positioning method, device, equipment and medium, the method comprises the following steps: dividing the converter valve fault into eight typical valve area short-circuit faults; RTDS simulation analysis, according to the different converter protection action results, dividing into three types of protection actions, giving the typical fault characteristic quantity of the valve difference protection action for positioning the valve area fault and the eight typical valve area short-circuit quick criterion; according to whether the actual converter protection action occurs in the rectifying station or the inverting station, confirming the valve area short-circuit fault occurring station; according to the converter protection action event of the monitoring background, confirming the converter protection action type and the valve area fault converter bridge; calling the built-in fault recording of the DC control protection, analyzing the converter protection action waveform, analyzing the fault characteristics of the current waveform of the valve side of the converter bridge and the outlet current waveform of the DC side, positioning the valve area short-circuit fault point according to the typical fault characteristic quantity of the valve difference protection action and the eight typical valve area short-circuit quick criterion; and has the advantages of fast positioning speed and simple analysis method.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD MAINTENANCE BRANCH

Automatic positioning device for medium frequency heating belt

The utility model relates to pipeline welding auxiliary device technical field, is a kind of automatic in position device of medium-frequency heating band, including medium-frequency heating band and the welding shed covered in the upper portion of medium-frequency heating band, further including winch, first pulley, second pulley, first wire rope and second wire rope, first pulley and second pulley are symmetrically installed in the upper portion left and right interval of medium-frequency heating band, first fixed seat is installed in the inside of the upper portion of welding shed corresponding the position above first pulley, first guide pulley is rotatably installed in first fixed seat.The utility model is reasonable and compact, the quick lifting and positioning of medium-frequency heating band are realized by the start-stop of winch control, the medium-frequency heating band can be evenly wrapped on the outside of pipeline, the pipeline is heated, and it can be completed by single operation, the efficiency is improved by 3 to 5 times compared with manual winding mode, and falling injury accident and scald accident easily caused under high temperature environment during manual operation can also be avoided.
Owner:XINJIANG PETROLEUM ENG DESIGN CO LTD +2

Method for optimizing SQL (Structured Query Language) execution efficiency in data warehouse

The invention discloses an SQL execution efficiency optimization method in a data warehouse, and relates to the technical field of database management and data processing. Comprising the following steps: based on a database protocol, according to rule configuration, identifying a data source, carrying out data source adaptation, sequentially carrying out SQL grammar analysis, SQL routing identification and SQL rewriting, forming an execution plan, caching the execution plan for repeated execution and calling, mapping data to a plurality of data storage partitions during write operation, and avoiding data inclination during write; during reading operation, a data scanning algorithm is utilized to automatically adapt to a data source, fragment query is rewritten, and empty scanning is reduced; submitting the execution plan to an SQL (Structured Query Language) execution engine, performing standard grammar execution and complex grammar analysis by the execution engine, generating a secondary execution plan, and if write operation is performed, performing partition storage of hot data and regularly performing cold data archiving by the execution plan; if the read operation is carried out, partition pruning optimization is carried out, and data merging and assembling are carried out through an SQL execution engine: returned data is merged, and if the read operation is carried out, an execution plan is dynamically analyzed, memory distribution of index data is adjusted, and high-frequency data is cached; and if the operation is the write operation, compressing and storing the data, and adjusting the index.
Owner:浪潮智慧城市科技有限公司

Wafer film coating device for integrated circuit manufacturing

The utility model discloses a wafer film covering device for integrated circuit manufacturing relates to the field of integrated circuit manufacturing, including closed box, be provided with the film covering mechanism in the upper end in closed box, be provided with wafer bearing mechanism in the lower end in closed box, be provided with the loading positioning mechanism in closed box, and the loading positioning mechanism includes the positioning support, a plurality of circumferentially uniformly arranged deflection rods are rotationally connected on the positioning support, the cross connecting disc is fixed in the top of deflection rod, and the adjacent cross connecting disc is hinged through the connecting rod, and the other end fixed with the material receiving tray of deflection rod, and the material receiving tray is fixed with the positioning ring, and the positioning cylinder is hinged between one deflection rod on the positioning support. The beneficial effect lies in: before loading, the wafer is supported through a plurality of circumferentially uniformly arranged material receiving trays, and then a plurality of positioning rings synchronous movement is centered clamped to the wafer, thereby realizing the centring positioning of wafer, and this positioning mode has high centring accuracy, positioning speed is fast, and is convenient for taking and placing.
Owner:SHENZHEN BAGE ELECTRONICS CO LTD

Tool for calibrating CT (Computed Tomography) external laser lamp

ActiveCN222584526Ufast positioningImprove calibration efficiencyLaser lightWasher
The utility model discloses a tool for calibrating a CT (Computed Tomography) external laser lamp, which belongs to the technical field of CT equipment and is characterized in that a first datum line and a second datum line are arranged on the surface of a calibration cylinder, a leveling instrument platform is arranged at one end of the calibration cylinder, a positioning rod is fixedly connected to the other end of the calibration cylinder, and a first spring washer and a mounting plate are movably sleeved on the surface of the positioning rod; according to the tool for calibrating the CT external laser lamp, through two side holes formed in a mounting plate, two connecting rods arranged on two connecting arms, a second adjusting sleeve and a third adjusting sleeve, the mounting plate has a rotary adjusting function, and then the horizontal position of a calibration cylinder is adjusted; and through a center hole formed in the mounting plate and a positioning rod and a first adjusting sleeve arranged on the calibration barrel, the calibration barrel has a rotating function, the position of the leveling instrument platform is adjusted, the positioning speed of the calibration tool is greatly increased, and the calibration efficiency of the CT external laser lamp is improved.
Owner:许威华

Aligning and positioning tool for laminated processing of metal plates

The utility model relates to the technical field of metal processing auxiliary equipment, and discloses an aligning and positioning tool for laminated processing of metal plates, which comprises a square guide rail, a sliding guide rail and a positioning component. A protruding block is arranged on the inner side of the square guide rail and connected with the two sliding guide rails in a sliding mode, a vertically-sliding positioning piece is arranged in each sliding guide rail, each positioning piece is composed of a sliding part and a rotating part, and the rotating parts are in rolling contact with the plate through the limiting holes. An elastic telescopic rod is arranged between the sliding guide rails to achieve self-adaptive adjustment, and the square guide rails drive the sliding guide rails to move oppositely through electric push rods. The working panel is provided with a guide groove and a slidable positioning sleeve, and plates are diagonally fixed through bolts. According to the tool, the electric push rod drives the positioning piece to conduct multi-direction linkage, the elastic telescopic rod and the rolling contact structure are combined, four-direction automatic positioning of the plate is achieved, the problems that a traditional tool is low in positioning efficiency and poor in precision are effectively solved, and the tool has the advantages of being capable of rapidly adapting to plates of different sizes, stable in multiple angles, capable of preventing deviation and capable of improving the machining precision.
Owner:XIAMEN JINGYIJING IND & TRADE CO LTD

Battery swapping station

ActiveCN224277120USolve the technical shortcomings of full-attitude precise positioninglow costCharging stationsElectric propulsion mountingPoint cloudElectrical battery
This application provides a battery swapping station. It includes: an object sensing platform for detecting the presence of a vehicle in a preset area, and sending a collection signal to a non-repetitive scanning LiDAR when a vehicle is confirmed to be present; the non-repetitive scanning LiDAR for performing point cloud acquisition upon receiving the collection signal to collect point cloud data of the vehicle's battery box and transmitting it to an attitude positioning device; and an attitude positioning device for determining the spatial position and attitude information of the battery box based on the point cloud data. This invention achieves precise positioning of the battery box across its entire attitude by fixing a single non-repetitive scanning LiDAR to the battery swapping station. It features a simple structure, convenient installation, fast positioning speed, and easy maintenance, reducing the cost of the battery swapping station while improving its stability.
Owner:ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY CO LTD

Current freezing acquisition system based on synchronous triggering of different sites

The invention belongs to the technical field of power line loss detection and monitoring, and particularly relates to a current freezing acquisition system based on synchronous triggering of different sites, which comprises an upper computer and current freezing acquisition units, and is characterized in that each current freezing acquisition unit comprises a low-voltage side assembly and a high-voltage side assembly; the low-voltage side assembly comprises a GPS, a low-voltage photoelectric conversion circuit, a data receiving module, a data processing module, an effective value calculation module and a data uploading module, and the high-voltage side assembly comprises a high-voltage photoelectric conversion circuit, a trigger control circuit, a current sampling assembly and a data sending module. According to the invention, the plurality of current freezing acquisition units synchronously acquire the instantaneous current values of the line at the same time according to the set time, and transverse comparison is carried out, so that the line loss can be analyzed in a synchronous instantaneous current subsection metering mode; the defects that long time needs to be waited for subsection metering through an electricity quantity method, power failure operation needs to be carried out for obtaining line high voltage, and the specific time point of line high loss cannot be determined are overcome.
Owner:STATE GRID LIAONING COMPREHENSIVE ENERGY SERVICE CO LTD +1

Online detection device for latex screw pump

PendingCN121854414Aachieve positioning effectfast positioningRotary piston pumpsRotary piston liquid enginesLatex rubberElectric machinery
The invention relates to the technical field of detection devices, and discloses a latex screw pump online detection device which comprises a screw pump body, a stirring screw is rotatably connected to the interior of the screw pump body, a processing pipeline is fixedly connected to the side, close to the stirring screw, of the screw pump body, and a feeding pipe fixedly communicates with the top of the processing pipeline. The side, away from the screw pump body, of the machining pipeline fixedly communicates with a discharging pipe. An inner cavity of the machining pipeline is provided with a detection positioning assembly for detecting whether the interior of the pipeline is blocked or not. Through the arrangement of the detection positioning assembly, a rotating motor is started to drive a rotating shaft and a sleeving ring to continuously rotate, the rotation is finally converted into the reciprocating linear motion of a sliding block, when a temperature sensor detects the temperature change, the motion is stopped, the effect of positioning the blockage is achieved, manual positioning is replaced with temperature sensing, and the working efficiency is improved. Not only is the blocking object positioning speed improved, but also the effect of saving manpower is achieved, so that the repair and maintenance cost is reduced.
Owner:JIANGXI FUZHOU GUOTAI SPECIAL CHEM IND CO LTD

Method and system for positioning single-phase grounding fault section of small-current grounding system

ActiveCN121978468ANot affected by transition resistanceNot affected by line changesShort-circuit testingFault locationLocation detectionElectrical resistance and conductance
The invention belongs to the technical field of power distribution network single-phase earth fault positioning, and particularly discloses a low-current grounding system single-phase earth fault section positioning method and system. The method comprises the steps of determining whether to start detection of single-phase earth fault section positioning or not based on abrupt changes of zero-sequence voltage and zero-sequence current at an outlet of a protected section; if the detection is started, the outlet of each section of the small current grounding system respectively calculates the transient zero sequence power of the outlet; determining an integral time window by using a zero-cross detection and continuity check mechanism, and integrating the transient zero-sequence power in the corresponding time window to obtain generalized transient zero-sequence energy; and judging whether the fault point is located at the upstream or downstream of the current measurement point based on the positive and negative generalized transient zero-sequence energy at the outlet of the protected section, and further judging whether the section between the two measurement points is a fault section. According to the method, the polarity difference of generalized transient zero-sequence energy of the fault section and the non-fault section is maximized, and the method is not influenced by transition resistance and line changes.
Owner:SHANDONG UNIV

Numerical control lathe tool turret test run control system

The invention discloses a numerical control lathe tool turret test run control system which comprises a tool turret running-in table and a control electric box, and a spindle servo motor and a tool turret installed at the output end of the spindle servo motor are arranged at the top of the tool turret running-in table; a tool turret servo driver, an IO control circuit board, a power-on brake circuit board, a 220V branching circuit board and an electric control piece are arranged in the control electric box. The control system is mainly used for detecting the tool changing process of a tool turret and detecting whether hydraulic loosening and locking signals of the tool turret can be detected or not. Through the design, test running of the newly-assembled tool turret can be achieved, the percent of pass and safety of the newly-assembled tool turret can be guaranteed, the working efficiency of operators is improved, the high reliability of the newly-assembled tool turret can be improved, and the working efficiency of the operators is improved. And meanwhile, the newly assembled tool turret has the characteristics of high positioning precision, high positioning speed and stable tool changing process.
Owner:NINGXIA QIAOFENG MASCH MFG CO LTD

A multi-station laser welding equipment for automobile parts

The present invention belongs to the technical field of laser welding, and discloses a multi-station laser welding device for automobile parts. The multi-station laser welding device for automobile parts comprises a bracket, a linear guide rail 1 is fixedly connected to the bracket, and a driving block 1 is slidably connected to the linear guide rail 1, a hydraulic cylinder 1 is fixedly connected to the driving block 1, and a rectangular frame is fixedly connected to the output end of the hydraulic cylinder 1, and a welding mechanism is arranged on the rectangular frame. The multi-station laser welding device for automobile parts can well limit the size of the shock-absorbing plate and the friction plate through the design of the welding mechanism, and limit them with the clamping mechanism, and can accurately position the weld, thereby improving the positioning speed of the weld, avoiding deviation, and reducing the damage to other parts of the workpiece caused by welding size deviation, thereby improving a certain production and processing efficiency and improving welding accuracy.
Owner:CHANGSHA OCEAN MASCH MFG CO LTD

A camera spatial positioning method based on a single image

The present invention discloses a camera space positioning method based on a single image, the method comprising the following steps: obtaining a straight line cluster or an approximate rectangle in an original image scene; obtaining a plane homography matrix, transforming the image through the plane homography matrix, and obtaining a transformed image; setting feature points on the transformed image, inversely projecting the feature points to the original image, and obtaining the image coordinates of the feature points in the original image; obtaining the position and posture of the camera through the PnP method according to the coordinates of the feature points in the transformed image and the coordinates of the feature points on the original image. The present invention discloses a camera space positioning method based on a single image, which only requires a single picture and can realize camera space positioning without three-dimensional reconstruction.
Owner:BEIJING DIEHUAN 3D TECH CO LTD

Anti-floating anchor positioning device

ActiveCN224186735URapid mechanical clamping positioningfast positioningProtective foundationBulkheads/pilesElectric machineryStructural engineering
The utility model discloses an anti-floating anchor rod positioning device which comprises a positioning plate, two positioning discs are arranged above the positioning plate, arc-shaped positioning blocks are fixedly connected to the upper surfaces of the two positioning discs, two vertical plates are fixedly connected to the upper surface of the positioning plate, and the arc-shaped positioning blocks are fixedly connected to the upper surface of the positioning plate. Driving covers are fixedly connected to the side faces, away from each other, of the two vertical plates, driving motors are fixedly installed on the inner side walls of the two driving covers, transmission plates are fixedly connected to the side faces, away from each other, of the two arc-shaped positioning blocks, and transmission rods are fixedly installed at the output ends of the two driving motors; the upper surfaces of the two positioning discs are each provided with two grouting holes, positioning through holes are formed in the bottom face of the positioning plate, a plurality of grouting through holes are formed in the upper surface of the positioning plate, and the grouting holes are located above the grouting through holes. According to the anchor bar positioning device, the anchor bar can be quickly and mechanically clamped and positioned, the positioning speed of the anchor bar is increased, and follow-up grouting is facilitated.
Owner:GUANGDONG HUANKE SPECIAL CONSTR ENG CO LTD

Positioning structure and positioning method for positioning between horizontal grating and vertical grating

The invention discloses a positioning structure and a positioning method for positioning between a horizontal grid and a vertical grid. The positioning structure comprises a first support body, a second support body and a positioning device, a first supporting body is fixedly connected to one transverse side end of the horizontal grating, and the upper end face of the first supporting body and the upper end face of the top plate are parallel and located at the same height; the transverse length of the first supporting bodies is larger than or equal to the transverse width of the vertical grids. A second support body corresponding to the first support is fixedly arranged on the bottom side of the vertical grid; the lower end of the second supporting body is flush with the bottom end of the vertical grating and abuts against the upper end face of the first supporting body in parallel. The positioning devices are L-shaped, a plurality of positioning devices are arranged on the top plate at intervals in the longitudinal direction, and a plurality of groups of connecting holes and positioning holes matched with the positioning devices are formed in the horizontal grating and the vertical grating at intervals in the longitudinal direction; and the positioning device is detachably connected with the horizontal grating and the vertical grating respectively. The positioning device has the advantages of being simple in structure, high in positioning precision and high in positioning speed.
Owner:THE FIRST ENG CO LTD OF CTCE GRP +3

Wafer detection mark positioning method and application

ActiveCN116258666BImprove positioning accuracyImprove the problem of prone to incorrect positioningImage enhancementImage analysisTemplate matchingEngineering
The application discloses a wafer detection Mark point positioning method, comprising the following steps: acquiring all picture images under the same index of a wafer detection image, and performing coarse positioning on the corresponding picture images through a first template covering information around a to-be-detected Mark point; cutting out a coarse positioning area according to a coarse positioning result, and performing fine positioning on the corresponding coarse positioning area through a second template containing only the to-be-detected Mark point; calculating a matching score of each to-be-detected Mark point according to the coarse positioning result and the fine positioning result, sorting the matching scores, and selecting a to-be-detected Mark point with the highest score as a target Mark point for accurate positioning. The method can solve the problem that a traditional Mark point positioning method adopts single template matching calculation, and error positioning is prone to occur in the case that a Mark point and a non-Mark point background are very similar.
Owner:WUHAN JINGLI ELECTRONICS TECH +2

Positioning method, detection method and detection system

A positioning method, a detection method and a detection system, the positioning method comprises the following steps: detecting at least two adjacent reference points on the surface of a to-be-detected object, obtaining first coordinate information of a first to-be-detected area in a first coordinate system; obtaining a conversion relationship between the first coordinate system and a second coordinate system; and obtaining second coordinate information of the first to-be-detected area and other to-be-detected areas in the second coordinate system according to the conversion relationship, the first coordinate information of the first to-be-detected area in the first coordinate system and a periodic distribution rule of the to-be-detected areas. Since the detection is performed on a limited number of reference points, the positioning speed of the to-be-detected area can be improved, accurate positioning of the to-be-detected point can be realized according to the coordinate information of the to-be-detected area in the second coordinate system, and therefore, rapid and high-precision detection of the to-be-detected area of the to-be-detected object can be realized.
Owner:SKYVERSE TECH CO LTD

Vertical drilling machine

The utility model discloses a vertical drilling machine which comprises an installation frame, a drilling machine body arranged on the installation frame in an up-down sliding mode, a feeding mechanism driving the drilling machine body to slide up and down, a clamping mechanism clamping a steel rail during drilling and a positioning mechanism. The clamping mechanism is arranged on the mounting frame in a vertical sliding mode, the positioning mechanism is provided with a positioning face abutting against the end face, to be drilled, of the steel rail during drilling, a positioning hole penetrating through the positioning mechanism is formed in the positioning mechanism, the position of the positioning hole corresponds to that of the drill bit, the central axes of the positioning hole and the drill bit are collinear, and the diameter of the positioning hole is larger than the diameter of the drilled hole. The drilling machine is high in positioning speed, high in efficiency and high in precision during drilling. And the drilling machine can be fixed to the steel rail through cooperation of the positioning mechanism and the clamping mechanism, so that the drilling machine is fixed stably, the shaking phenomenon is not likely to occur in the drilling process, the drilling position is not likely to deviate in the drilling process, and the drilling position precision can be further guaranteed.
Owner:SUZHOU KEBOLI INTELLIGENT EQUIPMENT CO LTD

XY axis rapid positioning mechanism for soft-pack battery cells

ActiveCN224767782Ueasy maintenancelow cost
This utility model provides a rapid XY-axis positioning mechanism for soft-pack battery cells, including a base support assembly, a soft-pack battery cell placement platform, an XY-axis positioning baffle, an X-axis pushing cylinder assembly, and a Y-axis pushing cylinder assembly. The soft-pack battery cell placement platform is located on the top of the base support assembly, and soft-pack battery cells are placed on the platform. An XY-axis positioning baffle is located on the right side of the platform to prevent the soft-pack battery cells from falling off. An X-axis pushing cylinder assembly is located at the left end of the platform, and a Y-axis pushing cylinder assembly is located at the rear end. The advantages of this utility model are: the mechanism achieves accurate edge positioning of the soft-pack battery cells through the pushing cylinder assemblies with two degrees of freedom along the X and Y axes, resulting in fast positioning speed and high efficiency. The mechanism is simple, reliable, easy to maintain, and low in cost, providing a good foundation for subsequent accurate material handling or soft-pack battery cell testing processes.
Owner:NEWARE TECH LTD

Crane ladle turning trolley for slow cooling process of slag ladle

The invention discloses a crane ladle turning trolley for a slag ladle slow cooling procedure, which comprises a walking trolley, a lifting appliance, a rail car assembly, a first lifting mechanism and a second lifting mechanism, the lifting appliance is put down through the first lifting mechanism, and then the second lifting mechanism is used for unhooking and ladle turning operation. Compared with an existing lifting hook and an existing rope which are easy to swing and not easy to take off the hook, when the device is used, hooking and unhooking can be achieved only by adjusting the position of the lifting appliance, enabling the cinder ladle to be located between the two side frames and driving the lifting hook, the swing amplitude is smaller, positioning is more accurate, and the positioning speed is higher and more convenient. And the swing arm beam can also achieve the purpose of turning over the ladle, so that the turning and dumping efficiency of the slag ladle is effectively improved, and the treatment efficiency of slag is improved.
Owner:ORITCRANES BEIJING CO LTD

A single station terminal fingerprint positioning method based on square weighted K nearest neighbor algorithm

ActiveCN116033334BImprove location recognitionHigh positioning accuracy
The application discloses a single station terminal fingerprint positioning method based on a square weighted K nearest neighbor algorithm and belongs to the technical field of fingerprint positioning. The method comprises the following steps: based on a channel frequency response (CFR) matrix, a position fingerprint matrix (FRCPM) with higher positioning precision is extracted; a fingerprint compression is performed on the fingerprint matrix (FRCPM) to obtain a compressed fingerprint (FCPV) with smaller data scale and being more beneficial to improving positioning speed; and a square weighted K nearest neighbor matching method with higher positioning precision is obtained by improving the weighted K nearest neighbor method.
Owner:SOUTHEAST UNIV

Oil tanker frame oil top positioning fixture

This utility model discloses a positioning fixture for the oil tanker frame's oil cap, relating to the field of shipbuilding fixture technology. It includes a connecting part and a positioning part. The connecting part is used to hook onto the edge of the longitudinal rib through-hole in the rib plate, and the positioning part connects to the connecting part and is used to position the oil cap. This utility model achieves oil cap positioning and force transmission by having the connecting part hook onto the edge of the longitudinal rib through-hole in the rib plate, and the positioning part positions the oil cap. The base of the oil cap acts on the positioning part, and the piston of the oil cap acts on the longitudinal rib. The force is applied to the longitudinal rib through-hole in the rib plate via the connecting part, thus realizing the positioning of the oil cap and the transmission of force. This allows for convenient and rapid adjustment of the relative position of the longitudinal rib and the rib plate via the oil cap. This application can reduce workload, increase positioning speed, and thus improve construction efficiency.
Owner:恒力造船(大连)有限公司

Positioning method of virtual reality equipment and virtual reality equipment

The invention relates to the technical field of VR, provides a positioning method of virtual reality equipment and the virtual reality equipment, and is used for improving the accuracy and robustness of SLAM positioning. According to an interaction scene with illumination variation, environment images synchronously collected by a multi-view camera are spliced into a spliced image, so that the edge features of the environment images collected by a monocular camera are fully utilized, the subsequent calculation accuracy of a 6Dof pose based on feature point matching is improved, meanwhile, the calling frequency of an image exposure adjustment algorithm is reduced, and the image exposure adjustment efficiency is improved. And therefore, the SLAM positioning algorithm can stably and efficiently run in a robust manner. For the overexposure or underexposure spliced image with the light intensity ratio not within the preset interval, different algorithms are adopted to adjust the image brightness so as to improve the contrast ratio of the image in the illumination change scene, so that the feature difference between different spliced images is more obvious, the feature discrimination degree is effectively improved, and the image quality is improved. And thus, the accuracy and robustness of the subsequent 6Dof pose based on feature point matching are improved.
Owner:HISENSE ELECTRONICS TECH SHENZHEN CO LTD

A pole rebar cutting and unloading device

This utility model discloses a rebar cutting and unloading device for utility poles, relating to the field of utility pole recycling technology. The utility model includes a guide rail, with an unloading mechanism on one side of the top of the guide rail and a support platform on the other side. An axial adjustment assembly is located on one side of the support platform. The axial adjustment assembly includes a hydraulic telescopic cylinder fixedly connected to the top of the support platform, a support plate fixedly connected to the telescopic end of the hydraulic telescopic cylinder, a movable plate on the top of the support plate, a groove on one side of the movable plate, and a mounting plate movably connected to the inner cavity of the groove via a rotating shaft. This utility model achieves digital programming of the cutting trajectory through the linkage control of the axial adjustment assembly and the angle adjustment assembly. A servo motor drives a threaded rod for fine-tuning the angle, and a three-point adjusting rod provides rigid support, ensuring that the cutting plane and the rebar tangent precisely form an optimal 15-degree cutting angle, thus improving processing efficiency.
Owner:TIANSHUI CHENGDA ELECTRIC CO LTD