475results about How to "Ensure accuracy and" patented technology

The invention belongs to the technical field of pipeline welding, and relates to a pipeline welding operation position deviation real-time monitoring and correcting system and method. The method comprises the following steps: fitting a central axis through a pipe end centering module to calculate a residual error and converting the residual error into a welding gun tool coordinate system to obtain a pose compensation amount; constructing a displacement change track, and screening a low-frequency axis offset coordinate sequence based on a pipeline mechanical motion inertia characteristic setting direction and acceleration constraint condition; and after the space offset is superposed with the compensation amount, a correction instruction is generated through a PID control algorithm. The problems of welding gun shaking caused by high-frequency noise interference in suspended pipeline welding, error accumulation and amplification caused by initial fixed deviation and dynamic deviation mixed compensation, and control overshoot or slow convergence caused by large rigid response difference of pipelines of different specifications are solved. Static residual error pre-compensation and dynamic offset decoupling are achieved, synchronous following of the real displacement trend is ensured, misjudgment interference is effectively avoided, and the stability and trajectory tracking precision of the welding process under the complex working condition are improved.

The invention provides a pipeline welding real-time feedback control method and system based on machine vision. According to the method, multi-modal data such as a three-dimensional point cloud, a temperature field and a welding seam image are synchronously collected, and key characteristics such as a pose deviation gradient, a cooling rate curve and a welding seam size sequence are extracted after time sequence alignment, filtering and correction fusion. And a CNN and LSTM mixed adaptive deep learning model is utilized to analyze the welding quality state in real time, and sub-optimal parameters are dynamically optimized based on a reinforcement learning strategy, or a three-level response mechanism including heat reduction input, expert knowledge base matching and precise repair is triggered to process defect early warning. The system has an incremental learning capability and can be self-optimized along with a control period. The full-flow intelligent monitoring, real-time feedback and self-adaptive accurate control of the welding process are achieved, and the welding quality and the automation level are remarkably improved.

The invention discloses a printing method, device and equipment for any-fold ink quantity output and a storage medium, and relates to the technical field of ink-jet printing. The method comprises the steps that the reciprocating scanning frequency, initial stepping information and ink amount adjusting information of a to-be-printed task are obtained; actual printing stepping information is obtained according to the reciprocating scanning times and the ink amount adjusting information; processing the to-be-printed data corresponding to each type of to-be-adjusted ink according to the reciprocating scanning times and the ink amount adjustment multiple to obtain actual printing data; and controlling a printing nozzle and a printing medium to move relative to each other according to the actual printing stepping information, and performing ink jetting in the moving process according to the actual printing data. The technical problem that an existing printing method cannot conveniently and accurately output the doubled ink amount with any multiple can be solved.

The invention relates to the technical field of photoelectric detection and radars, in particular to a calibration method, system and device for a radar and a laser anti-collision device and a medium, and aims to track and lock the same dynamic non-cooperative target through the laser anti-collision device and the phased array radar. Synchronously acquiring spherical coordinate observation data of the dynamic targets in the public view field under respective coordinate systems; and after the spherical coordinates are converted into rectangular coordinates, calculating a point set centroid, constructing a covariance matrix and performing singular value decomposition based on a rigid body transformation model, and directly solving a rotation matrix and a translation vector from a radar coordinate system to a laser anti-equipment-free coordinate system, thereby completing calibration. No external absolute coordinate reference is needed, only relative observation data of equipment is utilized, and the method has the advantages of being rapid in deployment, high in environmental adaptability, low in cost and high in calibration speed. The problems that in the prior art, a calibration system depends on RTK or a high-precision map, the environmental adaptability is poor, and the deployment requirement is high are solved.

The invention provides a real-time disaster situation multi-dimensional verification alarm method and system based on a large model, and relates to the technical field of disaster situation response, and the method comprises the steps: carrying out the backtracking and calling of multi-source disaster situation associated data after a disaster situation early warning signal is received, and obtaining a heterogeneous disaster situation data set; starting a dynamic task chain scheduling mechanism, executing multi-priority thread trend analysis, and outputting a multi-dimensional index analysis result; executing multi-dimensional index cross verification, and outputting a disaster verification conclusion; disaster decision making is carried out, and a disaster decision instruction is generated; carrying out township-level disaster situation grid positioning, and outputting a disaster boundary coordinate set; after the thermal rescue target spot is framed, geological disaster avoidance analysis is carried out, and a safety buffer area is positioned; and executing an alarm verification response. The technical problems that in the prior art, a disaster monitoring and early warning system mainly depends on a step-by-step reporting mechanism, so that disaster information transmission is lagged, accuracy is lost, and timeliness and accuracy of post-disaster rescue work are affected are solved.

The invention provides an obstacle association method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining measurement data from at least one sensor, and enabling the measurement data to comprise a plurality of obstacle measurements and detection information thereof; for each obstacle measurement to be associated, selecting a target reference point type from a plurality of predefined candidate reference point types according to detection information of the obstacle measurement to be associated; determining a measurement reference point from the detection information of the obstacle measurement based on a target reference point type selected for each obstacle measurement; determining a matching measure between a measurement reference point and a track reference point based on the measurement reference point measured by the obstacle and the track reference point determined for the fused track; according to the calculation result of the matching measurement between all the obstacle measurements and all the fused tracks, the association relationship between the obstacle measurements and the fused tracks is determined, and the accuracy and the reliability of obstacle association can be remarkably improved by adopting the method.

The utility model relates to the technical field of steel member machining, in particular to a steel member environment-friendly cutting device which comprises a shell, a first hydraulic cylinder is fixedly arranged at the upper end of the inner side of the shell, a lifting plate is fixedly arranged at the lower end of the first hydraulic cylinder, a second motor is fixedly arranged at the lower end of the lifting plate, and a lead screw is arranged at the output end of one side of the second motor in a transmission mode. The surface of the lead screw is in threaded connection with an internal thread block, the lower end of the internal thread block is fixedly provided with a smoke suction hood through a first connecting rod, the lower end of the smoke suction hood is fixedly connected with a first motor through a second connecting rod, the output end of the first motor is provided with a laser cutting head in a transmission mode, and a first hydraulic cylinder drives a lifting plate to descend to adjust the longitudinal cutting height. The second motor drives the lead screw to rotate, and the internal thread block adjusts the transverse cutting position in the sliding groove through the sliding block. The first motor drives the laser cutting head to rotate to adjust the cutting angle. The multi-stage adjusting mechanism ensures high precision and stability of cutting, and the cutting quality of the steel member is improved.

The invention discloses a high-precision coordinate calculation method based on Matlab, and belongs to the field of coordinate calculation technology and data processing, and the method comprises the steps: firstly, obtaining the combination of all points and vectors through a specific combination generation function, and then initializing a result vector; aiming at each combination, calculating intersection point coordinates and parameters by virtue of an accurate geometric intersection point calculation function, storing the intersection point coordinates and parameters in a result vector, and distributing the intersection point coordinates and parameters to a working area according to a rule by virtue of a working area assignment function; then, a midpoint coordinate matrix is obtained by applying a midpoint calculation function based on the coordinates of the intersection points, the distance between the points is calculated, a clustering center is determined by adopting a clustering algorithm, points of an intersection point concentrated area are screened out according to distance characteristics in a cluster, and finally, high-precision coordinates are calculated through a weighted average calculation function in combination with priori knowledge and weights. According to the method, the coordinate calculation precision can be effectively improved, good noise immunity is achieved, priori knowledge can be fully fused, and the method is suitable for numerous fields with high coordinate precision requirements.

The utility model discloses a take inner wall cleaning structure's toning machine belongs to toning machine technical field, including mounting panel, and the mounting panel is fixedly connected through bolt no.

The utility model relates to the field of automation, in particular to an adjustable motor screw heading device. The utility model provides an adjustable motor screw heading device which comprises a cabinet, a screw heading machine, an electric turntable, a mounting frame, a screw rod, a guide rod and the like, the screw heading machine is mounted at the top of the cabinet, the electric turntable is mounted at the top of the cabinet, the mounting frame is mounted at the top of the cabinet, and the screw rod is rotatably connected in the mounting frame. Guide rods are connected to the mounting frame in a bilateral symmetry mode. The guide ring can be adjusted to the position suitable for the size of a workpiece through the lead screw, so that the clamping distance of the fixing frames is accurately adjusted, then in the rotating process of the electric rotating disc, the second rolling wheel makes contact with the inclined face of the guide ring, and the two fixing frames automatically move towards the inner side through the synergistic effect of the guide ring, the first rolling wheel and the second rolling wheel; the workpiece is firmly clamped, the stability and precision of the workpiece in the screw driving process are ensured, manual intervention is not needed, and the automation level and the operation efficiency are improved.

This utility model belongs to the field of bathroom technology, specifically relating to an explosion-proof overhead shower. The invention employs a double-ring gradient connection structure consisting of a main connecting ring and an auxiliary connecting ring. The main connecting ring comprises 2-8 spaced main connecting seats, providing high pre-tightening positioning. The auxiliary connecting ring, located outside the main connecting ring and composed of 12-30 spaced auxiliary connecting seats, is used to equalize circumferential stress. A positioning ring with an annular groove is provided on the inner side of the housing, cooperating with a positioning ring on the water outlet panel to achieve pre-positioning constraint during assembly. A pressure plate is sandwiched between the housing and the water outlet panel, with an integrally formed protrusion at the bottom of its pressure hole inserted into the positioning hole of the housing. The protrusion contains a water outlet hole with a diameter smaller than the pressure hole, forming an integrated throttling and pressure-stabilizing positioning unit. The main and auxiliary connecting parts are locked to their corresponding connecting holes by fasteners, achieving a rigid connection. This structure synergistically improves mechanical load-bearing capacity, assembly accuracy, and hydraulic buffering capacity, significantly enhancing explosion-proof reliability.

The invention provides a wall recognition method and a storage medium, and the method comprises the steps: dividing an indoor building region and a peripheral region, and processing the proportional scale information and wall feature information, so as to achieve the precise separation of the indoor building region and a peripheral irrelevant region, and prevent the interference information of the peripheral region from affecting the wall recognition process; automatic and accurate acquisition of the scale is realized by using natural reference scale features generally contained in a peripheral area, and extra manual labeling or intervention is not needed; vectorization data and thickness parameters of the wall are extracted in a targeted mode, and the integrity and accuracy of wall feature information are ensured; according to the method, the identification result of the wall is jointly determined based on the proportional scale information, the vectorized data and the thickness parameters, so that fusion application of multi-dimensional key information is realized, dimensions, forms and physical attributes required by wall identification are comprehensively covered, and the identification reliability in a complex environment is improved.

The application discloses a precise intelligent agricultural greenhouse control system based on Zigbee transmission technology and relates to the technical field of intelligent agricultural greenhouse environment control. The system continuously monitors leaf surface temperature, air temperature and humidity and breeze speed, identifies local dewing risks by combining the change track of the leaf surface temperature to the dew point temperature and the influence of the breeze speed on the leaf surface air boundary layer, constructs link congestion states by combining the node retransmission times and the cache queue occupation amount, and realizes the priority scheduling of the control instruction and the environment data transmission. In the case that the dewing risk is increased and the link is congested, the anti-dewing control instruction is preferentially issued to the local microcirculation fan and the top ventilation window, and the non-key sensing node report is dynamically suspended, so that the high precision, real-time performance and spatial positioning of the anti-dewing control are realized. The application can prevent the local low wind speed area from dewing in advance, improves the yield and quality of the greenhouse crops, and effectively reduces the local disease risk.

The invention discloses a data generation method of a photoetching pattern, an electron beam exposure system, a medium and a product, which are applied to the technical field of photoetching. The method is applied to an electron beam exposure system comprising an upper computer and a lower computer. The method comprises the following steps: receiving first original coordinate data and second original coordinate data of a layout transmitted by the upper computer; performing linear interpolation based on the first original coordinate data and the second original coordinate data to obtain a plurality of pieces of original intermediate coordinate data; respectively mapping the first original coordinate data, the second original coordinate data and each piece of original intermediate coordinate data into first mapping coordinate data, second mapping coordinate data and each piece of mapping intermediate coordinate data of a lower computer; and performing exposure operation based on the first mapping coordinate data, the second mapping coordinate data and the mapping intermediate coordinate data. The data transmission quantity between the upper computer and the lower computer can be reduced, the bandwidth occupation and delay of data transmission are reduced, and the exposure efficiency is improved while the exposure precision is guaranteed.

This utility model discloses an ultrasonic paint coating quick-drying device, including a drying device, a conveying device at the lower end of the drying device, and a wooden board at the upper end of the conveying device. The drying device includes two fixed frames, a box at the upper end of the fixed frames, a blower at the upper end of the box, a heating box connected to the output end of the blower, an air supply pipe connected to the heating box, and a fixed connection between the output end of the air supply pipe and the top of the box. Several fans are installed at two opposite ends inside the box, and a circulating exhaust fan is installed on one side of the top of the box. When the fan is turned on, it forms a gas convection circulation, accelerating the movement of hot air. The circulating exhaust fan reintroduces the circulated hot air into the heating box to reduce energy consumption. A serpentine heating tube is installed at the bottom of the box. Product advantages: It adopts an upper and lower double serpentine heating structure, with a laminar flow hot air curtain in the top box and a contact serpentine heat conduction module in the bottom conveyor belt, forming a three-dimensional heat field coverage to ensure uniform heating of the board.

The invention discloses a point cloud registration method and device, electronic equipment and a storage medium, and the method comprises the steps: firstly obtaining an image collected by image collection equipment and point cloud data synchronously collected by a laser radar; the image and the point cloud data are preprocessed to obtain a corrected image and a corrected point cloud, so that unnecessary interference of other data on point cloud registration is avoided; when registration is carried out, coarse registration is carried out on the corrected point clouds based on each frame of image in the corrected image and the corresponding corrected point clouds to obtain coarse registration point clouds, so that the registration precision of the coarse registration is ensured; after coarse registration is completed, a search radius is set, fine registration is performed on the coarse registration point cloud based on the search radius, and a target point cloud corresponding to each frame of image in the corrected image is obtained, so that the point clouds of dynamic objects at different positions in adjacent frames can be effectively proposed, and the efficiency of searching for corresponding points can be improved; therefore, the precision and efficiency of registration are ensured.

The utility model relates to the technical field of hairdressing equipment, in particular to a rotary adjustable hair curling rod which comprises a shell, a hair curling assembly, a rotary shifting piece and an upper limiting block. The gear set of the rotary base is meshed with the driven gear, and the second gear teeth of the rotary shifting piece are meshed with the gear set, so that accurate rotation control over the curling iron is achieved, the curling angle and the curling direction can be adjusted more flexibly and stably, the curling effect and the user experience are improved, and the practicability is high. The heating piece is guided through the first moving guide rail and the second moving guide rail, the stability and accuracy of the heating piece in the hair curling process are guaranteed, the problems that a traditional hair curling rod is uneven in heating and unsmooth in hair curling are solved, the hair curling quality is effectively improved, and the upper limiting block and the top cover improve the structural stability of the hair curling rod and improve the hair curling efficiency. And in addition, the use safety is improved, the heating piece is prevented from accidentally falling off or shifting, and safer and more reliable use experience is provided for a user.

The utility model provides a kind of vacuum chamber sealing door, including sealing cover and lifting mechanism, the front and back of sealing cover are equipped with the opening allowing material to go in and out;Two vertical sliding rails are equipped on the inner side wall of sealing cover, door frame is slidably installed on sliding rail, door body is slidably installed in door frame, limit block is equipped in sealing cover inside;Guiding hole is equipped in the side wall of door frame, guiding pin matched with guiding hole is equipped in the side wall of door body, sealing ring is equipped on the abutting surface of door body and sealing cover.The utility model determines the height position of door body by limit block, and utilizes the constraint of guiding hole, forcibly drives door body to move horizontally when door frame continues to drop, so that it is automatically pressed in the inner side of sealing cover opening, converts lifting movement directly into sealing pressing force, without additional pressing device, simplify overall structure and improve action reliability, significantly reduce the complexity of equipment, manufacturing cost and maintenance difficulty, while ensuring that sealing performance meets the stringent requirements of vacuum chamber.

This utility model provides an integrated muffler mold that reduces impact damage, relating to the field of mold technology. It includes: an integrated mold body with a mold hole at the center of its top and a mold mounting groove at its bottom; a guide groove at a corresponding position on the outer side of the integrated mold body; a spring installed at the bottom inner side of the guide groove, and a guide slide plate installed therethrough; and a protective cover installed on the outer side of the guide slide plate. The protective cover moves upward above the top of the integrated mold body, providing comprehensive and effective protection for the mold hole. In complex workshop environments, the protective cover effectively blocks falling metal objects and other foreign objects, preventing damage to the mold hole from impacts and scratches, thus ensuring the integrity of the mold hole and solving the problem of potential damage to the mold edges caused by accidentally falling metal instruments.

The invention relates to the field of carbon emission prediction, in particular to a subway station construction stage carbon emission prediction method and system. Measuring and calculating carbon emission of the subway integrated station at different stages according to a carbon emission coefficient method, and performing data preprocessing to obtain carbon emission monitoring data; performing feature and target variable separation on the carbon emission monitoring data to obtain a feature matrix and a target variable vector; constructing a carbon emission prediction model to perform feature processing on the carbon emission monitoring data to obtain carbon emission feature data; the method comprises the following steps: constructing a carbon emission prediction integrated model based on LightGBM and XGBoost, identifying carbon emission characteristic data through the carbon emission prediction integrated model, and optimizing parameters in the LightGBM model and the XGBoost model by using grid search to obtain a carbon emission prediction amount in a subway station construction stage.

This utility model discloses a shearing device for residual injection molded parts gates, comprising a rotary feeding system consisting of bottom support legs, a machine base, a rotating table, and a product placement slot; a shearing mechanism consisting of pneumatic shears and a drive unit; a clamping mechanism consisting of a lead screw, a movable rod, and a clamping block; and a waste collection system consisting of a through hole, a collection box, and a cleaning strip. This device achieves efficient and safe treatment of injection molded parts gates through its integrated design of continuous rotary feeding, automatic shearing and clamping, and directional waste collection. This utility model has advantages such as high production efficiency, safe operation, and thorough waste collection, and is suitable for mass production of various injection molded parts.

The application provides a telescopic supporting clamp for milling off to 90-degree machining and a profile machining device, which is applied to the technical field of profile machining and is arranged in a sawing area of the profile machining device. The profile machining device further comprises at least a feeding area and a discharging area. After being machined in the sawing area, the profile workpiece is sent to the discharging area for discharging. The supporting clamp comprises a Z-axis clamping module arranged on the side of a 90-degree saw blade and used for clamping the profile workpiece when the 90-degree saw blade mills off; and a Y-axis driving module connected with the Z-axis clamping module and used for driving the Z-axis clamping module to telescopically extend in the Y-axis direction. By additionally arranging a clamp capable of telescopically extending in the Z-axis direction on the side of the 90-degree saw blade, the clamp extends out to clamp the profile when the 90-degree saw blade cuts off, thereby playing an auxiliary supporting and fixing role, reducing the deformation of the workpiece during machining and improving machining precision.

The invention discloses a vacuum extrusion device for preparing titanium and titanium alloy, relates to the technical field of titanium and titanium alloy preparation, and aims at solving the problems that an existing device is prone to sealing failure, not thorough in cleaning and low in temperature control precision. The device comprises a vacuum chamber, an extrusion rod, an air passage system, an air source distributor, a temperature monitoring module and an external control module. The working section of the extrusion rod is provided with three sections of spiral grooves, and precise coupling of dynamic sealing, self-cleaning and temperature field regulation and control is achieved through cooperation of an air channel system and multiple air channels. The first section of main sealing spiral groove forms a high-pressure air curtain, the second section of temperature control spiral groove adjusts the temperature in a self-adaptive mode through a shape memory alloy ring, and the third section of cleaning spiral groove conducts deep cleaning through the reverse suction effect. And the external control module adaptively regulates and controls each gas path according to temperature and impurity concentration monitoring data, so that the structure is simplified, the efficiency is improved, the product quality stability is guaranteed, and the batch production requirements of high-quality titanium and titanium alloy are met.

The utility model discloses a disc-shaped material conversion system with an automatic centering function, which comprises a conveying module used for conveying disc-shaped materials; the material bearing table is arranged at the tail end of the conveying module and used for bearing materials; the centering mechanism is installed above the material bearing table and comprises at least three sets of positioning assemblies distributed in the circumferential direction and linkage assemblies connected between the positioning assemblies in a transmission mode, each set of positioning assembly is provided with a positioning clamping jaw capable of sliding in the radial direction, and the linkage assemblies work to conduct centering on the material bearing table. All the positioning clamping jaws can be synchronously driven to synchronously move inwards in the radial direction; the jacking mechanism is arranged below the material bearing table and used for driving the material bearing table to move upwards so that the clamping mechanism can be conveniently converted to take away the disc-shaped materials. The device has the beneficial effects that the position of the material can be automatically corrected, and the accuracy and the stability of a subsequent transfer process are ensured.

The invention discloses a stamping process-oriented defect feedback and digital simulation closed-loop control system and method, and relates to the technical field of closed-loop control. The system comprises a working condition synchronous sensing and feature coding module, a digital simulation prediction module, a defect feedback and decision control module, a process parameter execution module and an online learning and model evolution module. According to the method, multi-source operation data are collected, a working condition feature packet is generated, material parameters are dynamically matched after a formed digital simulation model is input, initial disturbance is injected, and defect prediction parallel to physical stamping is achieved; calculating a prediction confidence coefficient by combining measured data, and generating a precise process adjustment decision by linking defect risk distribution and applying the decision to a next period; and based on actually measured and predicted errors, continuously updating a material parameter library and forming digital simulation model parameters through online learning. According to the method, the problems that traditional stamping simulation and reality are disjointed, and process adjustment is blind are effectively solved, the product defect rate is greatly reduced, and meanwhile the production efficiency and the quality stability are improved.

The invention provides a high-temperature superconducting induction heating control method and system based on multi-physics field coupling, and the method comprises the steps: driving a heat conduction model through eddy-current loss data outputted by a three-dimensional electromagnetic field model, and feeding back the temperature distribution data of the heat conduction model to the three-dimensional electromagnetic field model for parameter correction. Meanwhile, the temperature distribution data and the eddy-current loss data respectively drive a stress-strain model to calculate structural deformation to form a closed-loop link, finally, multi-field data dynamic interactive convergence is realized by adopting an iterative solution algorithm, and consistency and precision of output data of each physical field are ensured through a preset threshold value. Finally, cooperative control over temperature field uniformity, structural stability and energy efficiency in the heating process is achieved.

The utility model provides a kind of uncoiling equipment of double-end alternate feeding, including rack assembly, reel assembly, rotating mechanism and feeding trolley.Rack rotating box of rack assembly is respectively assembled reel assembly on both sides, and rack rotating box is rotated by rotating mechanism drive.Racking trolley is cooperated with rotating mechanism, and the reel assembly of both sides can be fed to coil.Rotating mechanism includes rotating executor, gear transmission mechanism and positioning assembly, and positioning assembly is cooperated with guide flange and locks rack rotating box by positioning pin shaft.Reel assembly uses different shaft structure's long main shaft, and is equipped with pressure arm device.Feeding trolley includes driving wheel group, driven wheel group, feeding seat, guide structure and feeding executor, realizes the horizontal movement and vertical jacking of coil.The utility model is fed by both ends synchronously, significantly shortens the time of changing material, improves production efficiency, optimizes space utilization, enhances bearing capacity and operating stability, and ensures operation precision and safety.

The utility model discloses a kind of ultra-thin FPC function test fixture, specifically related to FPC test technical field, comprising: lower mould, the lower mould is provided with the placement area matched with FPC appearance on, the edge of the placement area is equipped with multiple positioning pins;Upper mould, the upper mould is located above lower mould;FPC connects flat cable, one end of the FPC connecting flat cable is connected with test mainboard, the other end of the FPC connecting flat cable is equipped with the contact PAD corresponding with FPC gold finger.The utility model is provided with lower mould, upper mould and FPC connecting flat cable, FPC is fixed on lower mould, one end of FPC connecting flat cable is connected with test mainboard, the contact PAD of the other end is contacted with FPC gold finger under the pressing of upper mould, solve the gold surface pressure point problem caused by FPC and fixture direct plug, simultaneously avoid repeatedly plugging connection to cause test mainboard damaged.