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29results about How to "Fix inaccurate positioning" patented technology

Automatic flexible butt joint oil extraction system and method for transformer

The invention belongs to the technical field of power robots. The transformer automatic flexible butt joint oil taking system comprises an oil taking box and an oil taking robot, the oil taking robot comprises an oil taking robot chassis, an automatic butt joint device and an oil sample extracting device, and the automatic butt joint device and the oil sample extracting device are installed on the oil taking robot chassis; the oil taking tank comprises a flexible butt joint oil taking opening fixed to an oil taking tank body, a fixed rod and a movable rod assembly, the automatic butt joint device comprises a guiding butt joint mechanism and a flexible butt joint oil taking mechanism, and the guiding butt joint mechanism is used for being matched with the fixed rod and the movable rod assembly for guiding butt joint. The flexible butt joint oil taking mechanism is used for being in flexible butt joint with the flexible butt joint oil taking opening. Manual operation is replaced through automatic cooperation of the oil taking robot and the oil taking tank, the automatic docking device is applied, the operation process is optimized, the operation and maintenance efficiency and safety of the electric power system are improved, and the risk of manual operation is reduced.
Owner:STATE GRID INTELLIGENCE TECHNOLOGY CO LTD

Line inspection method and system for unmanned aerial vehicle airborne power grid X-ray detection equipment

The invention belongs to the technical field of positioning and navigation, and particularly relates to a line inspection method and system for unmanned aerial vehicle airborne power grid X-ray detection equipment. According to the method, a positioning unmanned aerial vehicle is used for determining a hovering point of a transportation unmanned aerial vehicle on a power transmission line, after the hovering point is sent to a positioning navigation unit, the positioning navigation unit carries out coordinate system unification and flight path planning, and the transportation unmanned aerial vehicle receives a flight instruction sent by the positioning navigation unit; carrying the power grid X-ray detection equipment to fly to a hovering point according to the path planning of the positioning navigation unit; and releasing the power grid X-ray detection equipment, analyzing the acquired X-ray image by the power grid X-ray detection equipment, and transporting the unmanned aerial vehicle recovery equipment after the acquisition task is completed. According to the invention, the difficulty in releasing and recovering the power grid X-ray detection equipment can be reduced, and the detection efficiency is improved.
Owner:NANCHANG KECHEN ELECTRIC POWER TEST & RES CO LTD +1

Cable tensioning device for electric power iron tower cable installation

The invention relates to a cable tensioning device for cable installation of an electric power iron tower, and the device comprises an installation frame, and the front end of the installation frame is provided with an installation groove in a penetrating manner; the wire feeding assembly is arranged in the mounting groove; the combined frame is connected with the connecting part of the wire feeding assembly, and a fastening sleeve is arranged at one end of the combined frame; the tensioning assembly is arranged at the top of the mounting frame, the tensioning assembly comprises a supporting seat, a multi-section rod capable of adjusting the angle and a tensioning rope capable of buffering the tensioning force, at least two adjusting grooves are formed in the top of the supporting seat, the bottom end of the multi-section rod is rotationally arranged in the adjusting grooves, and a buckle is arranged at the bottom end of the tensioning rope. According to the cable tensioning device, it can be ensured that the tensioning degree of the cable is uniform, the problem that the cable is damaged or loosened due to improper tensioning is solved, the cable feeding assembly and the tensioning assembly are used in cooperation, and the effect of cable installation complexity is reduced.
Owner:QINGDAO FANCHANG POWER EQUIP FACTORY CO LTD

Transformer oil sample active acquisition robot system and method

The invention belongs to the technical field of power robots. The invention provides an active acquisition robot system and method for a transformer oil sample. The system comprises an oil taking tank and an oil taking robot, the oil taking tank comprises an oil taking tank body and an oil sample extracting device located in the oil taking tank body, and the oil taking robot comprises a robot chassis and an automatic docking device arranged on the robot chassis; the oil sample extraction device comprises an injector rotating mechanism, a plurality of injectors for oil sample extraction are arranged on the injector rotating mechanism, the automatic docking device comprises a telescopic mechanism and a grabbing mechanism located on the telescopic mechanism, and the grabbing mechanism is used for taking out the injectors from the oil extraction tank body; potential safety hazards caused by frequent oil way butt joint are avoided, and the oil extraction efficiency is greatly improved.
Owner:STATE GRID INTELLIGENCE TECHNOLOGY CO LTD +1

User positioning method and device, electronic equipment and storage medium

The embodiment of the invention provides a user positioning method and device, electronic equipment and a storage medium. The user positioning method comprises the following steps: collecting first session information of a first session established by a target user; based on the first session information, judging whether the first session meets a forced update requirement, and when the first session meets the forced update requirement, forcibly releasing the first session; acquiring second session information of a second session reestablished by the target user after the first session is released, and acquiring information of a second cell where the target user is located from the second session information; and when the second cell information is successfully acquired, determining position information of the target user based on the second cell information. In the embodiment of the invention, the problem of inaccurate positioning caused by the fact that the target user cannot report the cell information in time when switching the cell in the same tracking area can be solved, the accuracy of user positioning is improved, and the universality of user positioning is improved.
Owner:CHINA TELECOM CORP LTD

Control method and device of automatic driving vehicle and automatic driving system

ActiveCN115503757BEnsure driving safetyReduce the level of automatic drivingControl devicescomputer scienceAutopilot
The present application provides a control method, device and automatic driving system for an autonomous driving vehicle, the method comprising: during the driving process of the autonomous driving vehicle, when the autonomous driving vehicle meets predetermined conditions, calibrating the predetermined parameters of the target sensor to obtain the target parameters, wherein the predetermined parameters include at least one of the yaw angle and the pitch angle, and the predetermined conditions include: the rate of change of the yaw angle of the autonomous driving vehicle is less than a first threshold, and the rate of change of the predetermined acceleration is less than a second threshold, and / or the rate of change of the slope of the road where the autonomous driving vehicle is located is less than a third threshold; when the target parameter is within a first predetermined range, correcting the position information of the obstacle measured by the target sensor according to the target parameter; when the target parameter is not within the first predetermined range, reducing the automatic driving level of the autonomous driving vehicle. The present application solves the problem of inaccurate sensor positioning of autonomous driving vehicles as the driving time increases.
Owner:SUZHOU ZHITU TECH CO LTD

Fusion positioning method and device based on inertial navigation system and global navigation satellite system

The invention relates to the technical field of intelligent driving, and discloses a fusion positioning method and device based on an inertial navigation system and a global navigation satellite system, and the method comprises the steps: obtaining first positioning data through the global navigation satellite system; acquiring second positioning data through the inertial navigation system; performing data filtering processing on the first positioning data by adopting second positioning data to obtain third positioning data; and carrying out fusion processing on the second positioning data and the third positioning data by adopting a Kalman filter to obtain target positioning data. According to the invention, the first positioning data is screened to eliminate interference data, and the Kalman filter is combined to carry out data fusion on the second positioning data and the first positioning data, so that the positioning precision of the system is improved; therefore, the problem of inaccurate positioning of the inertial navigation system and the global navigation satellite system under the condition that the signal of the global navigation satellite system is weakly interfered is solved.
Owner:CHONGQING COLLEGE OF ELECTRONICS ENG

Fin feeding machine

The invention relates to the field of mechanical automatic assembly, in particular to a fin feeding machine. The fin feeding machine comprises a feeding mechanism, a conveying mechanism, a fin discharging mechanism, an assembling mechanism and a carrying mechanism, the feeding mechanism is used for conveying fin materials, the conveying mechanism receives the fin materials and continues to convey the fin materials, and the fin discharging mechanism clamps the fin materials and presses the fin materials down to fall into the assembling mechanism; the assembling mechanism assembles fin materials and flat tube materials at intervals, and the carrying mechanism enables the equipment to automatically carry the flat tube materials or assembled finished products to a target position. According to the fin assembling device, the fin feeding efficiency and the quality of assembled products can be improved, and meanwhile the assembling requirements of fins and flat pipes of different specifications can be met.
Owner:SHENZHEN HAISIKE AUTOMATION TECH

Method, system and equipment for repairing new energy grid-connected broadband oscillation data and medium

The invention relates to the technical field of power systems, in particular to a new energy grid-connected broadband oscillation data restoration method, system and device and a medium, and the method comprises the steps: simulating a new energy grid-connected system through a simulation model, obtaining an original broadband oscillation data set, and carrying out the preprocessing of the original broadband oscillation data set, obtaining a preprocessed broadband oscillation data set; simulating and generating a broadband oscillation missing and abnormal data set according to the preprocessed broadband oscillation data set; and repairing the broadband oscillation missing and abnormal data set by using a local-global two-stage correlation learning repair model to obtain broadband oscillation repair data. According to the method, efficient and accurate restoration of missing and abnormal values in the new energy grid-connected broadband oscillation data is realized based on a two-stage restoration strategy of deep learning, the problem of inaccurate positioning caused by the missing and abnormal broadband oscillation data can be effectively solved, and stable operation of a new energy base grid-connected and delivery system is ensured.
Owner:STATE GRID ECONOMIC TECH RES INST CO LTD +1

Power socket and double-sided socket module thereof

The utility model relates to the technical field of electrical equipment, in particular to a power socket and a double-sided socket module thereof. The double-sided socket module comprises two groups of socket units which are arranged back to back and are fixedly connected, and an L-pole conductive strip and an N-pole conductive strip which are arranged between the two groups of socket units, and the two groups of socket units are each consistently equipped with at least one power taking potential; and when the two groups of socket units are fixedly connected in a back-to-back manner, the contacts in the socket units are conducted with the L-pole conductive strips and the N-pole conductive strips. According to the scheme, on one hand, two groups of socket units opposite to each other can be fixedly connected without a socket shell, and on the other hand, the mounting structure can be simplified.
Owner:CIXI MINGYE COMMUNICATING & ELECTRONICS

Intelligent making and evaluating device and system for inspection route of household photovoltaic power station

The utility model discloses a household photovoltaic power station inspection route intelligent formulating and evaluating device and system, comprising a positioning device, the positioning device is internally provided with a microcontroller and a 4G module, the microcontroller is an ESP8266NodeMCU, and the microcontroller is connected with an SIM800L4G module through a serial port; a battery state monitoring module is arranged in the positioning equipment, and the battery state monitoring module is connected with the photovoltaic cell panel through a connecting line; the positioning device further comprises a GPS module, the microcontroller is connected with the GPS module through a serial port, the GPS module adopts a UBloxNEO-6MGPS module, the battery state monitoring module adopts an LM358 voltage comparator module, and the battery state monitoring module monitors the battery state of the photovoltaic cell panel in real time. According to the utility model, the accuracy, efficiency and sustainability of routing inspection are improved, and remarkable progress is brought to the operation and maintenance management of the household photovoltaic power station.
Owner:SOLWAY ONLINE (BEIJING) NEW ENERGY TECHNOLOGY CO LTD

GNSS drift suppression method, electronic device, storage medium and program product

PendingCN119535511AFix inaccurate positioningSatellite radio beaconingData setEngineering
The embodiment of the invention provides a GNSS drift suppression method, an electronic device, a storage medium and a program product, a GNSS data queue is obtained according to a historical GNSS data set, and the GNSS data queue comprises at least two historical GNSS data arranged based on time sequence information within a preset duration; according to the vehicle operation information and the GNSS data queue, obtaining predicted GNSS data, the vehicle operation information representing a motion driving state of the vehicle, and the predicted GNSS data including at least one predicted GNSS value of the vehicle at the target time point; according to the method, the target GNSS data is obtained according to the current GNSS data and the predicted GNSS data, the target GNSS data is the GNSS data obtained by performing drift suppression on the current GNSS data at the target time point, that is, the position of the vehicle at the corresponding time point is determined, and the problem of inaccurate vehicle positioning caused by the scheme of the prior art is solved.
Owner:QUECLINK WIRELESS SOLUTIONS

Quick positioning and welding device for tunnel arch connecting flange plate

ActiveCN224737569UGuaranteed smooth assemblyQuick Position Welding
This utility model relates to the field of tunnel construction equipment technology, specifically to a rapid positioning and welding device for tunnel arch frame connecting flange plates. It includes clamping rods and positioning clamping plates. The two clamping rods are hinged together at the middle, with a clamping side and an operating side on either side of the hinge point. The positioning clamping plates are fixedly connected to the clamping sides of the clamping rods. The inner sides of the two positioning clamping plates are provided with positioning cavities matching the shape of the arch frame. An elastic element is provided between the two clamping rods on the operating side to maintain a clamping tendency. Positioning structures corresponding to the flange holes of the arch frame connecting flange plates are provided on the sides of the positioning clamping plates. This rapid positioning and welding device for tunnel arch frame connecting flange plates, through the cooperation of the positioning clamping plates and positioning structures, can quickly and accurately achieve the positioning and welding of the arch frame connecting flange plates, avoiding many problems caused by inaccurate positioning and ensuring the rapid and smooth assembly of the tunnel arch frame.
Owner:CHINA RAILWAY 20TH BUREAU GROUP CO LTD

Microstrip ternary antenna array for ultra wide band

ActiveCN222191135UDetermine the problem of zero depression directly belowlow costRadiating elements structural formsAntenna earthingsUltra-widebandOmnidirectional antenna
The microstrip ternary antenna array comprises at least one radiation sheet, a first dielectric plate, a second dielectric plate, a third dielectric plate and at least one metal ground, the first dielectric plate, the second dielectric plate and the third dielectric plate are stacked up and down, and an air gap is reserved between the second dielectric plate and the third dielectric plate. The radiation sheet is arranged on the top layer of the first dielectric plate, and the metal ground is arranged on the bottom layer of the third dielectric plate. The radiation sheet is provided with a microstrip line. According to the microstrip ternary antenna array for the ultra wide band, the microstrip structure radiation sheet is adopted, the radiation pattern is hemispherical, the microstrip ternary antenna array has the advantages of large gain, low profile, dual polarization and the like, the problem of null trap under an omnidirectional antenna array is solved, the profile is much lower than that of a monopole structure antenna array, and the antenna array is more compact. The dual-polarization characteristic can solve the problem of inaccurate positioning of the tag in different attitudes, and the antenna is more suitable for being used as a built-in antenna.
Owner:ZHENGZHOU LOCARIS ELECTRONICS TECH CO LTD

Communication positioning system and method in tunnel

The invention provides an in-tunnel communication positioning system and method. The in-tunnel communication positioning system comprises a positioning device, a positioning server, a scheduling management system and a plurality of wireless APs. The plurality of wireless APs are arranged in the tunnel at intervals; the positioning device comprises a device shell; the signal intensity sensor is wirelessly connected with the plurality of wireless APs; the positioning processing module is electrically connected with the signal intensity sensor; the storage module is electrically connected with the positioning processing module; the control module is electrically connected with the positioning processing module and the storage module; the interaction module is electrically connected with the control module; the power supply module is used for providing power; the positioning processing module is wirelessly connected with the positioning server; the control module is wirelessly connected with the scheduling management system; the wireless AP is arranged in the tunnel, the signal intensity sensor is used for acquiring the signal intensity data of the wireless AP, and the positioning processing unit is used for processing the signal intensity data, so that the position of an operator is accurately positioned, and the problem of inaccurate positioning caused by weak signals in the tunnel is effectively solved.
Owner:STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED +1

Control method of intelligent terminal and intelligent terminal

This invention discloses a control method and a smart terminal, relating to the field of smart terminal technology. The control steps are as follows: S1, acquiring the user's eye gaze position based on a camera and converting the gaze direction into specific position coordinates on the screen; S2, detecting the user's touch position on the screen based on a touchscreen sensor and acquiring the coordinates of the touch position; S3, comparing the acquired gaze position coordinates with the touch position coordinates, determining whether the gaze position is within the range defined by the touch position, establishing a judgment range threshold, and performing the comparison; S4, if the gaze position and the touch position are consistent, responding to the user's touch and executing operation control. In terms of interaction accuracy, this invention integrates the gaze position coordinates acquired by the camera and the touch position coordinates of the touchscreen, solving the problem of inaccurate target object positioning caused by large touchscreen partitions, improving the accuracy of touchscreen touch response, and preventing misoperation.
Owner:SHENZHEN YANJIANG INTELLIGENT TECH CO LTD

Train fusion positioning method based on multi-dimensional data

A train fusion positioning method based on multi-dimensional data relates to the technical field of high-speed railway detection, and comprises the following steps: acquiring basic data formed according to manually input line data and multi-dimensional data for positioning a rod; after a trigger signal is received, corresponding expected rods are generated for all dimensions in the multi-dimensional data, and corresponding original weights are distributed to all the expected rods; according to the result of each expected rod, adding the original weights corresponding to the expected rods with the same result to obtain a comprehensive weight; calibrating each expected rod as a fine positioning rod or an initial positioning rod according to whether the comprehensive weight exceeds a threshold value or not; the basic data and the fine positioning rods are adopted to obtain actual line rods, and the initial positioning rods are matched according to the actual line rods; correcting the initial positioning rod into a successfully matched actual line rod, and generating one-rod one-gear data in combination with the fine positioning rod; the problem of low train positioning precision can be solved.
Owner:CHENG DOU JIAO DA GUANG MANG SHI YE YOU XIAN GONG SI

Extrusion drying equipment for synthetic leather production

The utility model discloses extrusion drying equipment for synthetic leather production, which comprises a support frame, an upper extrusion roller and a lower extrusion roller, the upper extrusion roller is arranged above the lower extrusion roller in an up-down sliding manner, and a telescopic rod for driving the upper extrusion roller to move up and down is arranged on the support frame. The telescopic rod is used for adjusting the distance between the upper extrusion roller and the lower extrusion roller; the device further comprises a humidity detection assembly used for detecting the humidity of the synthetic leather, the humidity detection assembly is installed on one side of the supporting frame, and the humidity detection assembly makes contact with the synthetic leather and is used for detecting the humidity of the synthetic leather. The utility model belongs to the technical field of drying equipment, and particularly provides extrusion drying equipment for synthetic leather production, which is used for solving the problems of inaccurate positioning, poor drainage effect and low drying efficiency caused by elastic positioning.
Owner:FUJIAN HONG ZHENG LI SYNTHETIC LEATHER CO LTD

Multi-station laser welding mechanism capable of being operated efficiently

The invention relates to the technical field of industry, in particular to a multi-station laser welding mechanism capable of being operated efficiently, and solves the problem that in the prior art, an existing double-station laser welding machine usually lacks a shifting structure capable of rapidly replacing products to be welded. Due to the lack of the structure, in the welding process, after a group of products are welded, an operator needs to spend more time and effort to replace a new product to be welded. The problems that the non-value-added time in the production process is prolonged, the effective utilization rate of equipment is reduced, the labor intensity of operators is increased, and the overall production efficiency is affected are solved. A multi-station laser welding mechanism capable of being operated efficiently comprises a bottom bin and a rotating column. And a mounting cavity penetrating through the rotating column is formed in one side of the rotating column. By optimizing the design and improving the structure, the overall efficiency and flexibility of the production line are improved, the labor intensity of operators is reduced, and the welding quality and effect are improved.
Owner:YANCHENG HUAYING LASER TECHNOLOGY CO LTD

A rapid prototyping system for electric porcelain insulators

PendingCN122275131APreliminary shaping is accuratePrecise dockingTemperature controlCommunication unit
This invention discloses a rapid prototyping system for porcelain insulators, relating to the field of porcelain insulator technology. It includes a workbench with a lifting assembly fixedly connected above it via a mounting bracket. An upper mold is fixed to the movable part at the bottom of the lifting assembly. A lower mold is fixed directly below the upper mold on the workbench. Vertical guide rods are provided at the four corners of the lower mold, with guide cones at the top (narrower at the top, wider at the bottom) and the same size as the guide rods at the bottom. Vertical through-type limiting tubes are provided at the four corners of the upper mold, with the inner wall of the limiting tubes slidingly fitting against the outer wall of the guide rods. Both the upper and lower molds are equipped with temperature control mechanisms, including heating grids and temperature sensors. The temperature sensors detect the temperature of the heating grids, and the power of the heating grids is controlled by a first control unit according to a preset temperature. The two first control units communicate in real time via a wireless communication unit to ensure that the heating grid temperatures are the same. The upper and lower molds and their heating grids are the same size. This invention allows for rapid preliminary shaping, accurate positioning, and uniform heating.
Owner:JIANGXI SAIVIS ELECTRIC CO LTD

Method for tracking a trajectory of a person, tracking device thereof and tracking system thereof

The application provides a tracking method of personnel trajectory, a tracking device thereof and a tracking system thereof. The method comprises the following steps: firstly, obtaining multiple image information and multiple parameter information of multiple preliminary shooting devices in a predetermined space; then, determining predetermined coordinate information of personnel in each image information according to the parameter information and the image information, wherein the predetermined coordinate information is three-dimensional coordinate information of the personnel in the image information; subsequently, obtaining identity information corresponding to the personnel in each image information; then, determining a target shooting device group from the multiple preliminary shooting devices according to the predetermined coordinate information and the identity information, wherein the target shooting device group is a shooting device without failure in the multiple preliminary shooting devices; finally, determining target coordinate information of the personnel in the target shooting device group as the predetermined coordinate information. The accuracy of tracking the personnel trajectory in the predetermined space is high, and the problem of inaccurate positioning of indoor personnel in the prior art is solved.
Owner:SHENHUA SHENDONG COAL GRP +1

Sampler for soil monitoring

The utility model discloses and provides a sampler for soil monitoring, which comprises a grip, the bottom end of the grip is connected with a first connecting rod, one end of the first connecting rod is movably connected with a second connecting rod, the bottom end of the second connecting rod is connected with a sampling tube, the outer surface of the second connecting rod is movably provided with a connecting plate, and the outer surface of the connecting plate is movably provided with a connecting rod. A plurality of groups of positioning rods are fixedly mounted on the outer surface of the external connecting plate, two groups of sliding grooves are formed in the outer surface of the sampling pipe, sliding blocks are movably mounted in the sliding grooves, one end of each sliding block is connected with a scraping plate, and one end of each sliding block is connected with a handle. The problem that a traditional sampling method is inaccurate in positioning is solved. The insertion of the positioning rod can ensure that the sampler is stably fixed at a preset sampling position, so that the accuracy of a sampling point is greatly improved, and more reliable data support is provided for subsequent soil monitoring and analysis.
Owner:QINGDAO ZHONGBO HUAKE TESTING TECH CO LTD

Methods, systems, equipment, and media for repairing broadband oscillation data of new energy grid-connected systems.

The present invention relates to the technical field of electric power systems, and in particular to a method, system, device and medium for repairing broadband oscillation data of new energy grid-connected systems, including simulating a new energy grid-connected system using a simulation model to obtain an original broadband oscillation data set, and preprocessing the original broadband oscillation data set to obtain a preprocessed broadband oscillation data set; simulating and generating a broadband oscillation missing and abnormal data set based on the preprocessed broadband oscillation data set; and repairing the broadband oscillation missing and abnormal data set using a local-global two-stage association learning repair model to obtain broadband oscillation repair data. The present invention is based on a two-stage repair strategy based on deep learning, which realizes efficient and accurate repair of missing and abnormal values ​​in broadband oscillation data of new energy grid-connected systems, and can effectively solve the problem of inaccurate positioning caused by missing and abnormal broadband oscillation data, and ensure the stable operation of the grid-connected and external transmission systems of new energy bases.
Owner:STATE GRID ECONOMIC TECH RES INST CO LTD +1

Follow-up walking precise distance measurement and positioning device used in four-way shuttle

ActiveCN114194691BFix inaccurate positioningGuaranteed ranging accuracyControl theoryMechanical engineering
The invention discloses a follow-up type precise distance measurement and positioning device for a four-way shuttle vehicle, comprising a follow-up distance measuring wheel swing arm (3) movably arranged on a body (1) of the four-way shuttle vehicle, one end of the follow-up distance measuring wheel swing arm (3) being movably fixed by a swing arm rotating shaft (4) fixedly arranged on the body (1) of the four-way shuttle vehicle, and the follow-up distance measuring wheel swing arm (3) being freely rotatable around the swing arm rotating shaft (4), the other end of the follow-up distance measuring wheel swing arm (3) being fixedly arranged with a rotating shaft sleeve (18), the follow-up distance measuring wheel (5) being fixedly arranged on one end of the follow-up distance measuring wheel rotating shaft (6), and being movably arranged in the rotating shaft sleeve (18) by the follow-up distance measuring wheel rotating shaft (6), and the problem of inaccurate distance measurement and inaccurate positioning caused by deformation, wear, slippage and the like of the travel wheel during long-distance operation of the four-way shuttle vehicle is solved by the separately arranged follow-up distance measuring wheel.
Owner:SHANXI ORIENTAL MATERIAL HANDLING

Positioning support of automobile threshold guard plate

ActiveCN222328116UFix inaccurate positioningavoid damageWork benchesControl engineeringElectric machinery
The utility model relates to the technical field of automobile supports, in particular to a positioning support of an automobile doorsill guard plate, which comprises a box body, a workbench, a clamping mechanism and a rotating mechanism, the clamping mechanism is arranged at the top of the workbench and used for clamping and fixing the automobile doorsill guard plate, and the rotating mechanism is arranged in the box body and used for clamping and fixing the automobile doorsill guard plate. The clamping mechanism is used for driving the workbench to rotate and comprises a first motor, a two-way threaded rod, a connecting block, a through groove, a connecting plate and a clamping plate. Materials are fixed through the clamping mechanism, so that the problem that positioning is inaccurate in the machining or installing process of the automobile doorsill protection plate is solved, meanwhile, the clamping plate can flexibly clamp the plate, and therefore the plate is prevented from being damaged in the clamping process; and the materials can be conveniently machined at different angles, and the material machining accuracy is improved.
Owner:JIANGSU ZESHENG AUTO PARTS CO LTD

Object detection method, device, equipment, medium and product

The invention discloses an object detection method and device, equipment, a medium and a product, which are applied to mobile equipment, and the method comprises the following steps: in a process that the mobile equipment moves along a target direction, obtaining first information, the first information indicating phase information of reflection signals sent by a to-be-detected object to the mobile equipment within a plurality of times; based on the first information, a curve corresponding to the target direction is determined, and the curve is a curve with phase information changing along with time; and determining the position of the to-be-detected object based on the curve.
Owner:CHINA MOBILE COMM LTD RES INST +1

Echo feature point positioning method and device of ultrasonic water meter and storage medium

The invention relates to an echo feature point positioning method and device of an ultrasonic water meter and a storage medium. The method comprises the steps that a reference flight time value is corrected; sorting the data sequences of the plurality of feature flight times; performing multivariate probability coding on the sorted data sequence, and calculating an average value of candidate combination probability amplitudes; performing pulse time sequence coding and competitive characteristic significance detection on the sorted data sequence; variational global optimization is carried out on the sorted data sequence, a first candidate feature point combination is screened out from the time sequence position combination, and the reconstruction matching degree of the first candidate feature point combination is calculated; performing physical constraint check on the first candidate feature point combination; and according to the statistical evidence, the pulse confidence, the reconstruction matching degree and the physical constraint score, determining an echo feature point positioning result of the ultrasonic water meter from the first candidate feature point combination. According to the invention, accurate positioning of the echo signal feature points is realized, and the problem of inaccurate positioning of the echo signal feature points in the prior art is solved.
Owner:CHINA JILIANG UNIV

A method, apparatus, electronic device and storage medium for location-based reliability processing

This application provides a method, apparatus, electronic device, and storage medium for location reliability processing. The method includes: first, acquiring first point cloud data; then, filtering the first point cloud data to reduce the number of points while maintaining shape features, to obtain second point cloud data; smoothing a first grid map to eliminate noise, to obtain a second grid map; then, calculating the matching degree of each current point based on the second point cloud data and the second grid map; obtaining the actual matching degree of each current point by multiplying by a preset coefficient, and calculating the root mean square error to obtain a second laser matching degree; finally, using the second laser matching degree as the robot's location reliability. This application can obtain more accurate location reliability.
Owner:GUANGDONG LYRIC ROBOT INTELLIGENT AUTOMATION CO LTD +1

Bow blowing positioning control method for trailing suction hopper dredger

PendingCN121976577AImprove global exploration capabilities of the environmentMitigating Diversity DeclineMachines/dredgers working methodsMechanical machines/dredgersClassical mechanicsReinforcement learning algorithm
The invention provides a bow blowing positioning control method for a trailing suction hopper dredger. According to the method, a mechanism environment during bow jet operation of the trailing suction dredger is constructed based on a simplified ship three-degree-of-freedom dynamics and kinematics model, and a reinforcement learning network is constructed by adopting a maximum entropy reinforcement learning algorithm, so that the environment global exploration capability of the model is greatly improved, and the method has relatively high robustness and is suitable for popularization and application. A priority experience playback mechanism, a mixed sampling factor and strategy delay update are introduced into the model, on the basis of keeping priority experience playback efficient focusing key samples, the problem of sample diversity reduction caused by excessive bias is relieved by using the mixed sampling factor, meanwhile, the interference of value estimation errors on strategy update is reduced through DPU, and the accuracy of strategy updating is improved. The dredger can continuously adjust the thrust according to the bow jet reaction force, the position and the heading during bow jet operation are kept, and the problem that a traditional drag suction dredger is inaccurate in bow jet operation positioning is solved.
Owner:JIANGSU UNIV OF SCI & TECH