29results about How to "Improve positioning reliability" patented technology

A locking mechanism for a diagonal tie rod in an outward-opening, top-hung hardware system is disclosed. The diagonal tie rod includes a movable tie rod slidably mounted on a base for positioning a first connecting rod. The base has a first connecting rod with a limiting groove at one end near the base. The positioning device includes a limiting block with a locking part. When the window sash needs to be opened to its maximum position, the locking part extends out of the base and engages with the limiting groove to form a limiting connection, thus locking the window sash. The movable tie rod has an unlocking part. When the window sash needs to be closed, the locking part slides within the base driven by the handle. The unlocking part abuts against the limiting block, creating a lever effect that disengages the locking part from the limiting groove, thereby releasing the locked state of the window sash.

This invention discloses a positioning and clamping device for thin-walled parts, including a hydraulic clamping module and a quick positioning module. The hydraulic clamping module includes a base, and an expansion sleeve is installed in the inner cavity of the base, forming a sealed hydraulic oil chamber between the expansion sleeve and the inner cavity sidewall of the base. The quick positioning module includes a positioning shaft, and a disc is coaxially arranged at the lower part of the positioning shaft. The bottom of the positioning shaft passes through the disc and mates with a central positioning hole on the bottom surface of the inner cavity of the base. The positioning shaft is assembled in the inner cavity of the base. An installation hole is opened on the side of the disc and extends into the disc. A positioning block is installed in the installation hole by a spring. The front end of the positioning block has a toothed structure, and the spring can push the front end of the positioning block to the outside of the disc. A connecting groove communicating with the installation hole is opened on the upper surface of the disc. The lower end of the handle is inserted into the connecting groove and connected to the positioning block by a pin. A through groove is opened on the positioning shaft. The handle passes through the through groove, and the middle part of the handle is installed in the through groove by a pin.

The present application relates to a kind of additive manufacturing process crack real-time monitoring method, device, equipment and medium, comprising: S1.in the additive manufacturing process, the laser radiation signal for forming piece is collected in real time and conversion, and the converted electric radiation characteristic signal is handled, and the radiation signal thermogram of forming piece is obtained;S2.to the forming piece simultaneously carries out CT scanning and obtains image data, and after processing, crack characteristic distribution chart is obtained;S3.radiation signal thermogram and crack characteristic distribution chart correspond with the layer number of forming piece, and the radiation signal crack characteristic data set corresponding to layer by layer point by point is obtained;S4.data set is used to train machine learning or deep learning model, and crack determination model is obtained;S5.crack determination model is used for online monitoring to carry out crack identification.The method of the present application can form the radiation signal crack database corresponding to layer by layer point by point in three-dimensional space, and the data consistency and migratability are improved.

The utility model relates to electronic product assembly technical field discloses a kind of electrically-conductive parts mounting equipment, comprising: bearing, including insertion section and exposed section, insertion section is connected with exposed section and is equipped with via, bearing is equipped with cavity and bearing surface, bearing surface is at least partially located insertion section, for bearing electrically-conductive parts, via is through bearing surface, cavity is communicated with via and is through the surface of exposed section;Limit protrusion, be located at the outer circumferential surface of exposed section;Jacking part, insert in cavity, and from exposed section, jacking part has jacking protrusion, jacking protrusion is movably inserted in via.The electrically-conductive parts mounting equipment of the utility model has the advantages of simple operation, electrically-conductive parts is not easy to deviate, yield and production efficiency is high.

This utility model relates to the field of production line material stacking technology and discloses a production line material stacking positioning card. The upper end of the base is fixedly installed with a surrounding plate. The two sides of the surrounding plate are symmetrically provided with storage slots. The bottom of the two storage slots is fixedly installed with two connecting seats. The upper end of the two connecting seats is provided with a groove. By setting a lifting mechanism composed of a bidirectional adjusting screw, a movable block and a diamond-shaped folding plate, when the handle is turned to drive the bidirectional adjusting screw to rotate, the reverse threads at both ends drive the movable block to move towards or away from each other, causing the folding plate to rotate around the shaft as the fulcrum. The horizontal displacement of the movable block is efficiently converted into the vertical lifting of the connecting seat, realizing precise adjustment of the lower pressure plate height. Because of the action inside the storage slot, the folding plate can be completely stored in the storage slot when folding, greatly reducing the axial space occupation in the non-working state and solving the installation and operation limitations in a space-constrained environment.

This application provides a method and system for high-precision positioning and correction of unmanned aerial vehicles (UAVs) based on BeiDou tri-frequency signals. The method first receives a tri-frequency signal group transmitted by the BeiDou satellite navigation system. Then, utilizing the dispersion characteristics of the tri-frequency signal group propagating in the ionosphere, a real-time correction value for ionospheric delay error is generated. Next, multipath effect characteristic data caused by terrain undulations during agricultural surveying operations is acquired. Then, the multipath effect characteristic data is coupled with the real-time correction value to construct a dynamic error suppression model. Finally, the dynamic error suppression model is used to correct the original positioning trajectory of the UAV point by point to output a high-precision positioning result. The technical solution provided by this application not only effectively solves the combined interference problem of ionospheric delay and multipath effect, but also achieves high-precision positioning of UAVs in complex agricultural terrain environments, significantly improving the accuracy and environmental adaptability of the positioning results.

This application provides a model training method, a method and device for predicting the acetabular prosthesis implantation angle, belonging to the field of deep learning technology. Addressing the current problems of high material costs, high time costs, and low accuracy in individualized positioning, it trains a first convolutional neural network model using acetabular prosthesis images and acetabular prosthesis implantation positioning data from different patient samples to obtain a target acetabular prosthesis implantation angle prediction model. When using this model for targeted positioning of target patients, it can save on the high material and time costs associated with computer modeling simulation testing and 3D printing. Simultaneously, it can avoid excessive subjective assessment errors by doctors to a certain extent, thereby improving the positioning accuracy and reliability of acetabular prosthesis implantation angle prediction.

The application discloses a kind of automatic following method and system based on hybrid positioning comprising, set up ultra-wideband signal label on the surface of the followed object, set up ultra-wideband signal anchor on the upper surface of the follower, and range-finding module is set up on the surface of the follower in the following direction;According to the data of ultra-wideband signal label, ultra-wideband signal anchor and range-finding module, three base stations are positioned, and the following angle is obtained;According to the following angle, determine the following state, and the follower is controlled in combination with the following state.The application uses hybrid positioning scheme to make the following effect more stable, more reliable, improve the user's use experience, reduce the risk of collision of following robot.

This invention relates to the field of satellite navigation and intelligent positioning technology, and discloses an indoor positioning method and system based on BeiDou dual-frequency signals. The method receives BeiDou B1I and B1C dual-frequency signals through adaptive signal enhancement and preprocessing, and uses dual-frequency differential carrier phase extraction technology to form ionospherically independent combined observations, eliminating ionospheric delay errors. Multipath interference is identified and suppressed through a statistical feature-based multipath suppression method, and multi-sensor information fusion positioning is achieved by fusing BeiDou dual-frequency observations and IMU inertial data using an extended Kalman filter algorithm. Soft constraints are established using building geometric features to optimize the positioning results, and a multi-dimensional accuracy evaluation model is established to predict positioning accuracy and adaptively output the results. This invention achieves sub-meter positioning accuracy and millisecond-level response time in complex indoor environments, providing an effective solution for indoor positioning technology.

The utility model discloses an electric wheel rear axle box maintenance cover, including maintenance cover subassembly, hinged mechanism, set up maintaining opening on rear axle box, maintenance cover subassembly includes apron, sets up the inner baffle ring and outer baffle ring of apron inboard, and the inner baffle ring and outer baffle ring are sequentially arranged from the center of apron to the outer edge, and the wallboard of maintaining opening is inserted between the inner baffle ring and outer baffle ring, and one end of hinged mechanism is fixedly connected with apron outside, and the other end is fixedly connected with the rear axle box outer wall at maintaining opening, and apron is opened and closed along the horizontal direction rotation through hinged mechanism. Through the collaborative design of double baffle ring insertion type sealing structure and horizontal rotation hinge, improve the dynamic sealing performance and the ability of resisting foreign matter invasion of rear axle box maintaining opening, improve the opening and closing operation efficiency and structural stability of large maintenance cover, effectively adapt to the extreme vibration working condition of mining area and reduce the maintenance complexity, can satisfy the requirement of high frequency maintenance convenience, precision component protection reliability and heavy equipment structure durability of mine electric wheel rear axle box.

This application provides a method for intelligent fire hydrant leakage prediction and location based on multi-source data fusion, specifically relating to the field of fire hydrant leakage prediction and location technology. The method first acquires the target fire pipeline network topology data and multi-source monitoring time-series data collected in real time from multiple monitoring points, extracting operational features reflecting the pipeline network's operating status and time-series features at multiple preset time scales for each monitoring point. The time-series features and operational features are input into a dynamic fusion module to generate dynamic fusion features. These dynamic fusion features are then input into a pre-trained leakage prediction network, which outputs initial leakage prediction probabilities and initial spatial coordinates in parallel. The initial spatial coordinates and topology data are input into a pre-trained adversarial task network for topology consistency judgment. Based on the judgment results, the initial spatial coordinates are optimized, and combined with the initial leakage prediction probability, leakage warning and location information are generated and output, improving the timeliness of warnings and the reliability of location.

The application discloses a double gear pump, a front pump assembly comprises a front pump body and a front cover, a rear pump assembly comprises a rear pump body, the front cover is fixedly connected with the front pump body, the front pump body is fixedly connected with the rear pump body, a front pump connecting portion is arranged between the front cover and the front pump body, a rear pump connecting portion is arranged between the front pump body and the rear pump body, and the front pump connecting portion and the rear pump connecting portion are both provided with a first connecting assembly and a second connecting assembly. The front pump body and the front cover are positioned and connected through the front pump connecting portion, the front pump body and the rear pump body are positioned and connected through the rear pump connecting portion, there is no intermediate body structure between the front pump and the rear pump, and the overall structural compactness and connection stability are improved. Since the second connecting assembly is arranged between the front cover and the front pump body and between the front pump body and the rear pump body, the first connecting assembly of the front pump body and the rear pump body can both achieve the effect of inhibiting movement, the positioning precision and transmission precision of the gear pump are improved, and the volumetric efficiency under various rotational speeds and pressures is improved.

The utility model provides a kind of welding tool for air conditioner pipeline, the welding tool includes: support, first positioning assembly and second positioning assembly, first positioning assembly is set on support;First positioning assembly is provided with first locating groove;First locating groove is horizontally arranged, and its one side is open setting;First locating groove is configured to place the straight pipe section of main pipe body;Second positioning assembly includes: clamping piece and locking piece, clamping piece is set on support, and clamping piece can rotate around the axis perpendicular to the axis of first locating groove;Clamping piece is configured to clamp the bending section of main pipe body;Locking piece is configured to be able to limit the rotation of clamping piece.The welding tool of the utility model not only has higher reliability of positioning, but also can be adapted to different specifications of air conditioner pipeline.

The embodiment of the application provides a Beidou positioning device operation state intelligent diagnosis method considering power tower monitoring, and belongs to the technical field of power tower monitoring. The method comprises the following steps: obtaining operation state sample data of a Beidou positioning device of a power tower, wherein the operation state sample data comprises Beidou positioning quality data, combined positioning quality data and data link state data; the method constructs a Beidou positioning device operation state diagnosis model of the power tower, corrects the operation state diagnosis model according to the operation state sample data, inputs real-time data of the Beidou positioning device of the power tower into the Beidou positioning device operation state diagnosis model of the power tower for real-time analysis, so as to realize diagnosis on the operation state of the positioning device of the power tower, can accurately judge whether the current Beidou positioning device is abnormal, and further effectively improves the positioning precision and reliability of the Beidou positioning device.

This application discloses a target detection method, apparatus, electronic device, and storage medium. The method includes acquiring a fisheye image captured by a fisheye camera; obtaining a target detection bounding box for a target in the fisheye image based on a target detection model; determining a positional offset of the target based on a first position point in the fisheye image and a second position point in the target detection bounding box; correcting the second position point in the target detection bounding box based on the target's positional offset to obtain a third position point in the target detection bounding box, and using the third position point as the positioning result of the target in the fisheye image. The target detection method of this application reduces positioning deviation and improves positioning reliability.

This invention provides a method, apparatus, medium, chip, and wafer dicing equipment for processing wafer calibration ports, relating to the field of chip processing technology. The wafer calibration port processing method includes: acquiring shape parameters of a calibration port matching the wafer to be processed, including notch depth parameters, notch angle parameters, and fillet parameters; controlling the movement of the dicing spindle until the grinding wheel covers the wafer in the thickness direction, and the axis of the wafer is perpendicular to the axis of the grinding wheel; determining the processing curve path of the grinding wheel based on the shape parameters, with both ends of the processing curve path located at the edge of the wafer; and controlling the movement of the dicing spindle and / or the stage according to the processing curve path to process the calibration port at the edge of the wafer. This invention reduces reliance on manual labor and experience-based adjustments, lowers processing quality fluctuations, and improves processing efficiency and yield.

The application relates to the technical field of robot perception and autonomous navigation. The application discloses a target searching method and system based on robot central scene memory, a robot and a storage medium, which can improve the searching efficiency and positioning reliability of a target object and improve user experience. The method comprises the following steps: acquiring a robot central scene memory map and query features of a target object; the robot central scene memory map is updated in real time with the movement of the robot; similarity calculation and processing are performed on each filled grid unit in the robot central scene memory map and the query features, so that a first similarity score corresponding to each filled grid unit is obtained; all the first similarity scores are filtered according to a preset rule, a plurality of target scores are obtained, and each filled grid unit corresponding to each target score is used as a candidate unit; and the positioning information of the target object is searched based on all the candidate units.

This invention relates to the field of power system technology, and provides a method, device, electronic device, and storage medium for locating lightning strike faults in transmission lines. The method includes: acquiring transient voltage data after a direct lightning strike on a transmission line; defining a set of possible fault locations based on historical fault data; converting the transient voltage into a transient current; injecting the transient current in reverse from the same observation point into a simulation model of the transmission system to simulate the transverse branch current at each possible fault location; calculating the time-domain similarity between the transient current and the transverse branch current at each possible fault location, and determining the fault location with the highest similarity as the lightning strike fault location. This application only requires the installation of a single measurement point at the main substation to achieve high-precision lightning strike fault location with high reliability. It is applicable not only to lossless systems but also to lossy transmission lines.

This invention discloses an automatic personnel trajectory tracking method and system in hazardous areas, relating to the field of navigation technology. It involves synchronously acquiring satellite data and inertial measurement data, and using a Kalman filter for state prediction based on the inertial data. The availability of satellite data is evaluated; if available, multi-system fusion calculations are performed to calculate the observation error; if unavailable, pseudo-observation errors are generated using historical inertial data and a pre-trained error prediction model. The observation error or pseudo-observation error is then used to correct the state prediction using a Kalman filter, outputting optimal position information, and the generated trajectory is visualized in real-time on an offline map. This method can continuously correct inertial navigation drift even when satellites are unavailable, achieving continuous and reliable personnel trajectory tracking.

This invention relates to the field of vehicle technology and discloses a current ripple counting method and a vehicle. The method includes: acquiring the current ripple waveform of a component motor under current operating conditions; calculating the target cancellation delay of the anti-pinch trigger reverse angular displacement in the current ripple waveform; and counting the ripple waveform of the anti-pinch execution phase in the current ripple waveform based on the target cancellation delay to obtain a target ripple count. This invention solves the problem that the lack of accurate calculation of the angular displacement cancellation delay during the motor reverse phase after anti-pinch triggering leads to inaccurate ripple counting during the anti-pinch execution phase, affecting window positioning and anti-pinch function response.

This utility model discloses an automatic assembly equipment for loading and unloading fixtures, chips, and carrier tapes. It includes a worktable with a fixture transfer component for transferring the fixtures, chips, and carrier tapes. A fixture loading and unloading component for loading the fixtures is connected to one end of the worktable, and a fixture feeding component for feeding the fixtures is located on one side of the fixture loading and unloading component on the worktable. During implementation, the entire process of carrier tape loading into the fixture, chip placement, and fixture locking is automated without manual intervention. Multiple chips can be placed simultaneously at a time, and it can adapt to different sizes, meeting the core requirements of semiconductors for "smaller chips, higher precision, and faster line changes." It enables the carrier tape carrying the chips to be quickly, accurately, and reliably positioned and fixed in the fixture, and achieves high-precision, high-speed placement of the chips within the carrier tape.

The utility model relates to the technical field of beverage production discloses a bottle body variable frequency speed regulation conveying device, including the conveyer belt, the both sides of conveyer belt are pasted with the protection box, and the variable speed drive mechanism is installed in the inside of protection box for the transmission and speed regulation of conveyer belt, the both ends outside symmetry of protection box are installed with the support frame, and the adjusting limiting mechanism is symmetrically arranged in the top of conveyer belt for the positioning of bottle body conveying, this bottle body variable frequency speed regulation conveying device passes through the rolling pole design of adjusting limiting mechanism, and the sliding friction of bottle body and limiting structure is converted into rolling contact, significantly reduces bottle body surface wear and tear and conveying resistance, adjusts the spacing of positioning of different diameter bottle body through the cooperation of first adjusting lever and limiting lever, ensures the central positioning in the bottle body conveying process, and height adjusting mechanism utilizes the transmission structure of 'X' linkage plate and second adjusting screw, can according to bottle body height flexible adjustment movable plate vertical position.

The utility model provides a kind of feeding mechanism for packaging bag, it is related to semi-automatic product packaging technical field, including sectional frame, one end of sectional frame top is provided with mounting plate, the top surface of mounting plate is symmetrically provided with switch mounting seat, the top of two groups of switch mounting seat is uniformly provided with photoelectric detection switch, one end of mounting plate top is provided with four groups of limit posts, the surface of four groups of limit posts is slidably connected with tooling plate, one end of tooling plate top is provided with four groups of clamping grooves, the inside of four groups of clamping grooves is clamped with packaging bag material box, the inside of packaging bag material box is clamped with packaging bag, realize precision transmission using servo motor drive screw, cooperate photoelectric detection switch to carry out real-time monitoring to material position, simultaneously utilize sliding rod structure to ensure stability and guiding accuracy in movement process, to effectively improve the positioning accuracy and feeding reliability of packaging bag feeding, realize automatic accurate feeding.

The application discloses a high-efficiency filtering and flow resisting integrated filter, and belongs to the technical field of pneumatic conveying pipelines. The high-efficiency filtering and flow resisting integrated filter comprises a one-way valve body and a one-way valve core assembly, the one-way valve core assembly is installed in the one-way valve body, air inlet pipes and air outlet pipes are respectively connected to the two ends of the one-way valve body, and a gas filtering assembly is installed in the air outlet pipe. The one-way valve core assembly and the gas filtering assembly are integrated in the same valve body, the functions of air inlet filtering and ash returning flow resisting are integrated, the pipeline is simplified, space is saved, the insertable gas filtering assembly is adopted, the filter screen can be individually taken out for cleaning and replacement without disassembling the pipeline, maintenance is convenient, pressure gauges are respectively installed on the air inlet pipe and the air outlet pipe, filtering effect visualization is realized, equipment damage caused by untimely blockage discovery is avoided, the supporting frame enhances the stability of the pipeline, the sealing gasket layer and the conical limiting ring improve the sealing and positioning reliability, the filtering effect is stabilized, and the maintenance frequency is reduced.

The application provides a wristband-based inpatient tracking and tracing management system, from inpatient registration (automatic information association), wristband distribution (ID verification + automatic locking), real-time monitoring (positioning-filtering-alarm linkage) to discharge unlocking (cost signal triggering), recovery tracing (disinfection-state updating-reuse), the whole process does not need manual recording, the operation efficiency is improved, and the human error rate is reduced. The extended Kalman filtering algorithm is used to process GPS data, the positioning accuracy is improved, the electronic fence supports polygon customization and multi-level alarm, and the efficiency is improved compared with manual inspection. Through real-time linkage of the electromagnetic lock control module and the HIS system, the closed-loop management of "inpatient automatic locking-cost settlement automatic unlocking" is realized, the risk of patient's off hospital due to arrears is eliminated, and the bad debt loss is reduced annually.

The utility model provides a kind of positioning device of mould, belong to mould manufacturing technical field, the positioning device of this mould includes positioning seat body, positioning column, adjusting mechanism, locking mechanism and guiding mechanism;Positioning seat body is hollow cylinder, bottom is equipped with bottom surface, and circular through-hole is opened in the center of bottom surface;Stepped positioning column is composed of lower section cylinder and the upper section cylinder of greater diameter;Adjusting mechanism contains adjusting seat and adjusting screw rod, adjusting seat is fixed in seat body side wall, adjusting screw rod passes through adjusting seat and extends into seat body interior, and its end abuts on the side wall of upper section cylinder to adjust height;Locking mechanism is composed of locking bolt and locking block, locking block is placed in seat body, locking bolt is connected with locking block by thread in radial through seat body side wall, and locking block inner arc surface and upper section cylinder outer wall are pasted to realize lock solid;Guiding mechanism contains guide sleeve and guide rod, guide sleeve is fixed in seat body top end, guide rod passes through guide sleeve and is fixedly connected with the top end of upper section cylinder, and it is ensured that column lifting direction is accurate and unbiased.