24results about How to "Meet accuracy requirements" patented technology

This utility model relates to the field of electrical energy detection technology, and proposes a high-current electrical energy detection device with closed-loop control function. The device includes: a programmable power source module, including an output drive unit for outputting current, voltage signals, and waveforms within a large current range; a standard measurement module connected to the output drive unit for detecting the current, voltage signals, and waveform parameters output by the output drive unit; a waveform sampling module connected to the output drive unit for sampling the waveform output by the output drive unit; a closed-loop control module bidirectionally connected to the programmable power source module and the waveform sampling module for adjusting the current, voltage signals, and waveforms; and an external device detection interface connected to the output terminal of the output drive unit for connecting different types of high-current metering devices. This utility model solves the problems of measurement error superposition, unstable output, and insufficient measurement range in traditional detection devices.

This invention belongs to the field of numerical electromagnetic field solution, specifically a mesh adaptive method based on reconstructive posterior error estimation. The invention first performs finite element modeling of the target microwave component, introducing boundary conditions and excitations to establish a corresponding electromagnetic simulation model. Then, a tetrahedral mesh is used to divide the solution domain, and finite element electromagnetic simulation analysis is performed on the model to calculate the electric field at the centroid of the four faces of the tetrahedral mesh. The least squares principle is then used to refit the electric field on the tetrahedral mesh to reconstruct a first-order linear fitting expression. Next, the reconstructed solution at the nodes is calculated using the reconstructed fitting expression, and posterior error estimation is performed based on the electric field at the nodes. Finally, the mesh is refined according to the error on the tetrahedral mesh, and finite element electromagnetic simulation analysis is performed again until the finite element solution meets the accuracy requirements. This invention has the advantages of simple engineering implementation, low computational cost, and high universality.

The invention provides an SNP (Single Nucleotide Polymorphism) molecular marker for detecting the color of watermelon pulp and application of the SNP molecular marker. The SNP molecular marker corresponds to a Chr06: 24308944 site on a No.6 chromosome of a watermelon Citrullus lanatus 97103 v2.5 genome, the polymorphism of the SNP molecular marker is G / A, and the SNP molecular marker is closely linked with the thick yellow / light yellow color character of watermelon pulp. When the basic group of the SNP site is G, the watermelon shows a thick yellow pulp character; and when the basic group is A, the watermelon shows a light yellow pulp character. The invention also provides a KASP primer group for detecting the SNP molecular marker, and a detection method based on the primer group, and KASP-PCR amplification and genetic typing are performed on a sample to be detected, so that the color character of watermelon pulp is judged. The invention also provides a kit containing the primer group and application of the kit in watermelon molecular marker-assisted breeding. The method has the advantages of being rapid in detection, high in accuracy, free of environmental influence, suitable for high-throughput application and the like, and the breeding efficiency of the yellow pulp watermelon variety is improved.

The invention discloses an ecological carbon sink monitoring data processing method and system based on a photovoltaic desertification control mode, and relates to the technical field of image data processing. Collecting cleaning operation and maintenance records, and sorting the cleaning operation and maintenance records according to time to generate a cleaning event table; obtaining array layout data and a digital elevation map, and deducing coverage classification according to the digital elevation map to generate a cleaning influence area map; constructing a cleaning disturbance indication sequence based on the cleaning event table, the cleaning influence area graph and the earth surface feature original sequence; generating a purification weight map based on the cleaning influence area map and the cleaning disturbance indication sequence, and deducting cleaning disturbance components according to the purification weight map to obtain a surface feature purification sequence; obtaining a carbon sink increment evaluation result based on the surface feature purification sequence, the array layout data and the purification weight map; according to the method, accurate identification and quantitative deduction of cleaning disturbance of the photovoltaic power station can be realized, and real ecological changes and operation and maintenance artifacts are clearly distinguished.

The utility model relates to mechanical processing technical field, concretely is a horizontal machining center workstation quick positioning locking device, include: base is provided with the sliding slot, adjusting assembly includes the sliding block, and the sliding block is connected with the sliding slot of base sliding, and the sliding block is provided with four and is provided with through -hole in the middle, fixed component, including support axle, support sleeve, connecting axle and clamping plate, support axle is welded on the sliding block and among two settings have thread, support sleeve is connected with the threaded support axle screw thread and is connected with two outer two support axle sliding, and the connecting axle bottom end is rotatably connected with the support sleeve, and the clamping plate is connected with the connecting axle sliding, and the device is through the cooperation of adjusting assembly and fixed component, realizes the quick positioning of workstation and the steady locking of object.

The application provides a real-time calibration control system of a high-frequency spark machine, and relates to the field of electric digital data processing.The system comprises an interactive processing module, an analysis control module, a state monitoring module and a calibration control module.The interactive processing module is used for inputting a processing file and displaying processing content.The analysis control module is used for analyzing the processing file and outputting basic control information.The state monitoring module is used for monitoring the state of a workpiece in a processing process.The calibration control module controls processing parameters based on the basic control information and the state of the workpiece.When the system processes the workpiece, the processing parameters can be calibrated and adjusted in real time according to the processing state, so that a high-precision processing effect is obtained.

The utility model relates to a kind of miniature direct-current brushless motor, including shell, and shell is equipped with accommodating cabin;With the motor rear cover and motor front cover of accommodating cabin seal connection;Stator core is equipped in accommodating cabin;With the rotor assembly matched with stator core;PCBA board is equipped in accommodating cabin;Motor rear cover is equipped with electric connection interface, electric connection interface is operatively electrically connected to PCBA board;The center of motor rear cover is equipped with the stator support shaft extending into accommodating cabin, stator core is fixedly sleeved on stator support shaft;Motor front cover is equipped with insert sealing joint part, insert sealing joint part is used to insert into gear box and form sealed connection with gear box;The output end of the motor shaft of rotor assembly extends outward through insert sealing joint part.It replaces traditional motor.The miniature direct-current brushless motor can effectively solve the problems in the prior art through innovative structural design, improve the performance, reliability and service life of motor in smart home device.

The utility model discloses a kind of dead angle decoration film shower coating devices, the utility model relates to decoration film shower coating technical field.It includes mounting base, the mounting base is provided with the shower coating mechanism for decoration film, shower coating mechanism includes: adjusting assembly, the utility model screw rod rotation will make slider move horizontally along slide rail support, slider moves and drives gear lever to move, because gear lever is engaged with transmission gear connection, so transmission gear will rotate in turn, and then drive support shaft rotation, support shaft rotation makes cavity pipe and its lower end shower nozzle rotate, realize the adjustment of shower nozzle angle, by the transmission of gear assembly, the angle of shower nozzle can be accurately adjusted, so that paint can be with suitable angle injection to each part of decoration film, including some complex shape dead angle area, effectively solve the problem of traditional shower coating device coating dead angle, improve the uniformity and quality of coating.

The application discloses a kind of dynamic phase shift interferometry system and method thereof, including first depolarization beam splitter, first depolarization beam splitter side is sequentially spaced with first polarizer, collimating lens, pinhole filter, first attenuator and laser, the other side is sequentially spaced with third polarizer and object, the upside of first depolarization beam splitter is sequentially spaced with second polarizer, second attenuator and first mirror, the downside of first depolarization beam splitter is sequentially spaced with imaging lens, second depolarization beam splitter, polarization grating and second mirror, the side of second depolarization beam splitter is provided with camera;Polarization grating is liquid crystal circular polarization grating, liquid crystal molecule fast axis orientation is periodic continuous gradual change along x direction, overall has λ / 2 phase delay amount.The application can ensure high-precision phase measurement results while meeting the demand of dynamic measurement.

This invention belongs to the field of durability and safety assessment, and discloses a method and apparatus for assessing the full-range fatigue life of corroded steel bars considering pitting characteristics. The method includes: calculating the long crack propagation life based on the dimensional characteristics of the steel bar to be assessed and the dimensional characteristics of pre-determined pits on its surface; calculating the nominal equivalent size of surface defects of the steel bar to be assessed based on the dimensional characteristics of the pre-determined pits; calculating the crack nucleation life based on the dimensional characteristics of the pre-determined pits and the nominal equivalent size of surface defects of the steel bar to be assessed; calculating the short crack propagation life based on the nominal equivalent size of surface defects of the steel bar to be assessed and the boundary size for the transition from short cracks to long cracks; and calculating the total fatigue life based on the long crack propagation life, crack nucleation life, and short crack propagation life. This invention achieves accurate assessment of the fatigue life of corroded steel bars, meeting the accuracy and reliability requirements for assessing the full-range fatigue life of corroded steel bars.

The invention discloses a radial tire defect detection method, device and equipment, a medium and a product, and relates to the technical field of tire detection, and the method comprises the following steps: obtaining an X-ray image of a radial tire to be detected; inputting the X-ray image into a tire defect detection model to obtain a defect detection result; the defect detection result comprises a defect type and a defect position; the tire defect detection model is obtained by training a target neural network by adopting a training set; the target neural network is a neural network formed by combining a YOLOv8 network and a RepViT block; and displaying the defect detection result in real time through an image user interface. The tire defect detection efficiency can be improved.

The application provides a high-precision diaphragm precision stamping forming process method, which comprises the following steps: cutting to obtain a diaphragm blank; stamping and blanking and preforming a wave surface on the diaphragm blank; making the outer contour size of the preformed diaphragm and the R angle and wave height of the wave surface meet the preforming size requirements, and ensuring that the planes between the wave surfaces of the preformed diaphragm are wrinkle-free; performing wave surface correction on the preformed diaphragm, so that the R angle and wave height of the diaphragm wave surface meet the wave surface size and precision requirements of the diaphragm product; and processing the outer contour of the diaphragm after the wave surface correction, so that the outer contour of the diaphragm meets the outer contour size and precision requirements of the diaphragm product, and the diaphragm product is obtained. The application effectively solves the problems of poor wave surface forming precision and wrinkle generation of a high-precision diaphragm with a wave surface and a small deformation area when the stretching ratio is close to the limit, and improves the qualified rate and production efficiency of diaphragm forming.

The application discloses a circuit breaker fault diagnosis method and system and a readable computer storage medium, can more accurately reflect the condition of the signal source by combining the information obtained by different sensors, can effectively solve the problem that a single signal cannot fully distinguish different states of the circuit breaker, and improves the reliability of fault diagnosis. By calculating the power spectrum of the sound, vibration and current signals of the circuit breaker, and then training the sparse automatic coding network, the characteristic values that can best represent the signals can be extracted; by fusing the characteristic vectors of the original signals through the fusion neural network, optimal feature fusion can be realized, the characteristic values are more representative, the accuracy of judgment can be improved, the fault diagnosis fault tolerance of the circuit breaker is increased, the precision and speed requirements of the circuit breaker fault diagnosis in the field can be met, and fast and accurate identification can be realized.

The invention provides a high-power diesel engine crankshaft oil seal dynamic performance test system and method, and relates to the technical field of internal combustion engine part testing, and the system comprises a rotary loading module, a suspension and support module, a vibration load simulation module, a measurement and control and data analysis module, and a test sealing cavity assembly. The rotary loading module specifically comprises an alternating current servo motor, a coupler, a main shaft, a rolling bearing and a dynamic torque sensor; the hanging and supporting module specifically comprises a four-column support, a flexible guide mechanism, an anti-rotation connecting rod, a height fine adjustment device and a dynamometer. The vibration load simulation module specifically comprises a linear motor, a controller and a grating encoder; a controller of the measurement and control and data analysis module is used for sending a rotating speed instruction to the rotary loading module and sending a vibration instruction to the vibration load simulation module; and the rotary loading module and the vibration load simulation module are used for sending a feedback signal to the measurement and control and data analysis module to form a control closed loop.

The invention discloses a main arch section high support installation control method, which comprises the following steps: S1, obtaining design parameters of a main arch section, structure parameters of a high support and installation environment data, and preprocessing the data; s2, based on the preprocessed data, dividing installation batches of the main arch sections and supporting units of high supports, and determining the supporting positions of the high supports corresponding to the main arch sections of all the installation batches; and S3, posture data and high support stress data in the main arch segment installation process are collected, and the dynamic change rule of the data is captured through the time sequence analysis model. According to the main arch section high support installation control method, the dynamic change rule of the data can be accurately captured by collecting the attitude data of the main arch section and the stress data of the high support in real time and combining the time sequence analysis model, any abnormity in the installation process can be effectively monitored, and it is ensured that the main arch section is accurately installed according to design requirements.

The application discloses a battery X-ray Overhang measurement method and system based on target detection coarse positioning and polar plate structure prior boundary segmentation. The method comprises the following steps: acquiring an X-ray original image of a battery to be measured; performing coarse positioning on the battery area of the image and cutting the image to obtain a local image to be measured; inputting the local image to be measured into a polar plate boundary segmentation network based on polar plate structure prior, performing multi-scale feature coding, structure prior fusion and two-stage progressive boundary estimation, and outputting a polar plate boundary probability graph; performing post-processing on the probability graph, extracting positive and negative polar plate boundary position sequences, calculating layer-by-layer Overhang and alignment degree statistics, and outputting a qualified judgment result. In the reasoning stage, only a single image to be measured is required, the layer-by-layer Overhang numerical chain can be output under the condition of two-dimensional X-ray, the coarse positioning cost is reduced, and the measurement reliability in the dense polar plate scene is improved.

The utility model relates to an electric flip damper, motor assembly contains the casing of containing cabin, sealed connection rear end's motor rear cover and front end's motor front cover, and the motor front cover is equipped with the plug-in sealing joint part of extending to the front, and the stator core, rotor assembly and PCBA board are equipped in containing cabin, and the motor shaft of rotor assembly extends through plug-in sealing joint part, gear box connects motor front cover, and plug-in sealing joint part inserts gear box inner wall and forms sealed connection, and at least one planetary reduction mechanism is equipped in gear box, and its output end is connected output shaft, and the drive gear of motor shaft extension end fixation is located in gear box, and directly engages the input element of driving planetary reduction mechanism, the advantages are: plug-in sealing structure blocks the invasion of water vapor / dust, improves the reliability of severe environment, cancels the traditional flange connection, simplifies the assembly process, and reduces the processing / maintenance cost.

The application discloses a kind of methods, devices, media and systems suitable for large unmanned aerial vehicle's flight parameter autonomous analysis, belong to unmanned aerial vehicle technical field, include: analysis logic standardization encapsulation: analysis logic is standardized encapsulation by regular expression;Configuration information reading and analysis code generation: reading analysis configuration file, analysis configuration file includes each item of configuration information for flight parameter file;Flight parameter file analysis: running generated exclusive analysis code, flight parameter binary file is analyzed.The application improves analysis efficiency, accuracy and consistency, can realize the standardization of large unmanned aerial vehicle flight parameter analysis, automation, meet the strict normative requirements of large unmanned aerial vehicle development, fully reflect the strict normative of large unmanned aerial vehicle development.

This invention relates to a long-term dynamic assessment method for carbon sequestration in plantations, adaptable to various tree species, belonging to the field of plantation carbon sequestration assessment technology. It addresses the accuracy issue in long-term dynamic assessment of plantation carbon sequestration. The invention includes: identifying the area requiring carbon sequestration assessment and obtaining initial data; calculating the intrinsic vegetation growth rate and maximum biomass per unit area of ​​different plantations; constructing a formula for calculating the biomass carbon storage of plantations; verifying the calculated biomass carbon storage with that obtained from field surveys; constructing tree species coefficients corresponding to different tree species growth rates; and estimating the vegetation biomass carbon sequestration of different plantations based on the verified biomass carbon storage. This invention overcomes the errors in carbon sequestration caused by traditional prediction methods neglecting differences in tree species biomass, enabling accurate prediction of plantation carbon sequestration across various scales.

The application relates to the technical field of intelligent medical treatment and natural language processing, and discloses a special medical record robot system and method based on a vertical field large model, the method comprising the following steps: an adaptive spectral subtraction algorithm with a spectral lower limit is used in a preprocessing and noise reduction module to filter out background noise in dialogue voice signals to generate clear voice signals; a cross-modal language processing module extracts target medical sub-field labels and generates a temporary hot word set according to a context, and the temporary hot word set is reversely input into a dynamic speech recognition module to adjust a decoding graph path; the cross-modal language processing module combines semantic confidence scores and acoustic sequence metadata to jointly evaluate medical key information and assign an intention label; a medical record generation module fills medical key information with the intention label into corresponding slots of an outpatient medical record template according to the intention label to generate an outpatient medical record draft; and the application effectively filters out environmental noise, improves medical vocabulary recognition accuracy, and accurately distinguishes between confirmed and suspected signs.

The present application relates to a kind of based on artificial intelligence warehouse inventory management and optimization method, by comprehensively considering commodity storage location, tray partition, order priority and system state etc., construct new mathematical model, and use deep reinforcement learning DQN network solution, realize intelligent decision commodity pick-up location and generate optimal picking path;The method provided by the present application can effectively shorten order processing time, for the demand of small batch, multi-category order, improve warehouse efficiency, reduce stacker moving distance and pick-up frequency, reduce operating cost, and can be flexibly scheduled according to priority, adapt to system real-time state change;Compared with traditional method, after adopting the optimization strategy provided by the present application, the number of tray extraction is significantly reduced, has significant beneficial effect, can be widely applied in intelligent warehousing field, improve the automation, informatization and intelligent level of warehousing management, meet the demand of modern logistics industry to efficient warehousing system.

The utility model discloses a vacuum counting mechanism for lead-acid storage battery polar plates, belongs to the technical field of lead-acid storage battery production equipment, and solves the problems of low manual visual operation efficiency, high labor intensity, poor polar plate counting accuracy, insufficient operation safety and influence on polar plate quality in the prior art. Comprising a connecting vertical plate, an obliquely-arranged feeding conveying device is arranged on one side of the connecting vertical plate, and the driving end of the feeding conveying device is connected with a feeding conveying motor; the discharging end of the feeding conveying device is provided with a vacuum negative-pressure conveying device which is arranged obliquely downwards, the driving end of the vacuum negative-pressure conveying device is connected with a vacuum negative-pressure conveying motor, and the vacuum negative-pressure conveying device is connected with a vacuum generating device through a vacuum negative-pressure connector. And a grouping counting sensor is arranged above the stacking guide sliding plate at the lower discharging end of the vacuum negative pressure conveying device. The stacking machine is reasonable in design, compact in structure, accurate in grouping, stacking and counting, low in labor intensity, high in production efficiency, good in operation safety, coherent in mechanism action and high in practicability.

This invention relates to the field of power grid frequency regulation technology, and discloses a method, apparatus, device, and storage medium for invoking a flywheel array. The method includes: acquiring health status parameters of the flywheels in the flywheel array; evaluating the health of the flywheels based on the health status parameters to obtain their health status; acquiring the required frequency regulation power of the power grid in response to a primary frequency regulation request from the power grid connected to the flywheel array; and selecting target flywheels from the flywheel array to participate in the primary frequency regulation of the power grid based on their health status and required frequency regulation power. This invention can significantly improve frequency regulation accuracy and response speed, while also improving the operational economy and durability of the flywheel array.

A digital method, apparatus, equipment, and medium for on-site safety inspection and consultation are disclosed, relating to the technical field of on-site supervision. The method includes: receiving an inspection request carrying information to be inspected; generating an inspection instruction based on the inspection request; obtaining the current status of the inspector based on the inspection instruction; identifying inspectors currently idle as target inspectors; and sending the information to be inspected to the inspection terminal corresponding to the target inspector; receiving target images collected by the target inspector based on the information to be inspected; inputting the target images into a pre-trained image analysis model to obtain a set of target inspection reports; inputting the set of target inspection reports into a pre-trained data statistical model to obtain a visual analysis report generated based on preset statistical rules; and sending the set of target inspection reports and the visual analysis report to the user terminal that issued the inspection request. Implementing the technical solution provided in this application can digitize on-site inspection and consultation information, improving information transmission efficiency.