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141results about How to "High Acquisition Accuracy" patented technology
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Liquid cooling server intelligent temperature control method based on local software monitoring and liquid cooling server
InactiveCN119536482AHigh Acquisition AccuracyImprove real-time performanceDigital data processing detailsHardware monitoringTemperature controlPrediction algorithms
The invention relates to the technical field of server temperature control, and discloses a liquid cooling server intelligent temperature control method based on local software monitoring, and the method comprises the following steps: data collection: collecting hardware temperature data and task load data of a liquid cooling server through an embedded real-time monitoring module; temperature prediction: based on the hardware temperature data and the task load data, utilizing a prediction algorithm to analyze the temperature change trend of the server in a period of time in the future; regulation and control decision making: according to the temperature change trend, generating regulation and control parameters for regulating the flow of the cooling liquid and the target temperature of the cooling liquid; the invention further discloses a liquid cooling server which comprises an embedded real-time monitoring module, a distributed control unit, a cooling loop module and a local off-line temperature control module. Through the dynamic temperature control algorithm, the distributed control unit and the local temperature control module, real-time accurate regulation and control, efficient response and independent operation under the condition of network disconnection are achieved, and the reliability and adaptability of the system are improved.
Owner:BEIJING QIBU TIANXIA TECH CO LTD
Bridge structure detection method based on unmanned aerial vehicle, product, medium and equipment
PendingCN119510419AEnsure safe operationImprove efficiencyInternal combustion piston enginesNavigational calculation instrumentsUncrewed vehicleEngineering
The invention discloses a bridge structure detection method based on an unmanned aerial vehicle, a product, a medium and equipment, and relates to the technical field of bridge structure detection, and the method comprises the steps: obtaining the basic data of a bridge structure, and constructing a three-dimensional model according to the basic data; layering the three-dimensional model of the bridge structure according to a preset interval, and calculating an initial path of the unmanned aerial vehicle; optimizing the initial path by adopting a gradient descent method to obtain an optimal path of the unmanned aerial vehicle; acquiring to-be-detected data of the bridge structure based on the optimal path of the unmanned aerial vehicle; preprocessing the to-be-detected data to obtain preprocessed to-be-detected data; and performing crack detection and deformation detection based on the preprocessed to-be-detected data to realize bridge structure detection. According to the bridge structure detection method based on the unmanned aerial vehicle, the product, the medium and the equipment, efficient and accurate detection of the bridge structure can be realized.
Owner:ZHEJIANG UNIV
Multispectral LED detection light source synchronous control method, device and equipment and storage medium
ActiveCN119676904AAchieve precise synchronizationHigh Acquisition AccuracyElectrical apparatusSpectrum investigationEngineeringCrosstalk
The invention relates to the technical field of light source control, and discloses a multispectral LED detection light source synchronous control method, device and equipment and a storage medium. The method comprises the following steps: carrying out double-interlaced spectral data sampling on a light source, and carrying out baseline extraction and compensation correction on preset three-dimensional spectral parameters; mapping of multi-dimensional mixed domain time sequence characteristics and decomposition of working characteristic tensors are carried out on the corrected calibration spectrum data, and modulation of recursive phases and group delay compensation calculation are carried out; performing crosstalk compensation of a multi-stage LED light source channel and suppression reconstruction of a multi-harmonic component on the light source phase compensation vector subjected to compensation calculation to generate light source correction control data; and performing light source driving signal synthesis on the light source correction control data to obtain a light source driving waveform sequence, and performing light source channel distribution and synchronous adjustment on the light source driving waveform sequence to generate a light source synchronous control result of the target multispectral LED detection light source. According to the invention, high-precision synchronous control of the multispectral LED detection light source is realized.
Owner:SHENZHEN KINGUNION LIGHTING CO LTD
Pressure control method and device for accurately adjusting air pressure intensity
ActiveCN119472824ARealize adaptive adjustmentHigh Acquisition AccuracyFluid pressure controlControllers with particular characteristicsFrequency spectrumPressure data
The invention relates to the technical field of air pressure intensity adjustment, and discloses a pressure control method and device for accurately adjusting air pressure intensity, and the method comprises the steps: carrying out the digital conversion and temperature and humidity compensation of an original pressure signal collected by a pressure sensing array, and obtaining a pressure data matrix and a pressure gradient matrix; calculating a pressure distribution mass center and a pressure fluctuation frequency spectrum to obtain a pressure space distribution characteristic matrix and a pressure time domain characteristic matrix; inputting a three-state Markov model for dynamic state identification to obtain a pressure state transition probability matrix and a pressure response prediction matrix; constructing an objective function containing a pressure tracking error term and an organization safety constraint term, and solving to obtain a PID control parameter matrix and a pressure safety limit matrix; and constructing a three-stage control system comprising a basic controller, an interference compensator and a safety protector, and outputting an air pressure regulation driving signal. According to the method, high-precision pressure sensing control is realized.
Owner:SHENZHEN DONGJILIAN MEDICAL TECH CO LTD
Integrated airborne communication antenna equipment and communication method
ActiveCN119628694Aefficient compressionGuaranteed normal transmissionSpatial transmit diversityBiological modelsPrecodingData stream
The invention relates to integrated airborne communication antenna equipment and a communication method. The method comprises the following steps: carrying out CSI data acquisition and space-time focus modulation on a communication channel to obtain CSI space-time characteristic data; performing residual vector quantization operation to generate a quantized data stream, and performing recursive coding processing to obtain a target data stream; mapping the target data stream to a three-dimensional tensor space, constructing a real value tensor model, and performing iterative operation to obtain a CSI feature vector; performing fractional order wavelet transform decomposition on the CSI feature vector to obtain a radio frequency feature set, and inputting the radio frequency feature set into a federal fractional scattering network for feature processing to obtain an identity authentication result; and calculating an amplitude-phase weight coefficient of the antenna array, generating a beam parameter, and performing compensation matrix operation on the beam parameter according to the CSI feature vector to obtain a pre-coded signal. According to the invention, the dynamic adjustment of the antenna beam parameters is realized, and the accuracy and anti-interference capability of beam forming are improved.
Owner:SHENZHEN ASIA PACIFIC AVIATION TECH CO LTD
Photovoltaic panel defect detection system and method based on unmanned aerial vehicle and machine vision
PendingCN119515799AHigh Acquisition AccuracyImage enhancementImage analysisImaging processingMachine vision
The invention discloses a photovoltaic panel defect detection system and method based on unmanned aerial vehicle and machine vision, the system comprises an unmanned aerial vehicle, a visible light lens and an EL lens, the EL lens is connected with the input end of an image collection module through a wireless network, and the output end of the image collection module is connected with the input end of an image processing module; the output end of the central processor is connected with the defect discrimination module; the unmanned aerial vehicle firstly carries a visible light lens and is used for automatically planning a route according to a given area range to carry out primary high-altitude aerial photography and simulated mesoscale aerial photography; secondly, carrying an EL lens, and carrying out multi-view adaptive directional high-precision shooting according to a route planning path; the image processing module is used for correcting a photovoltaic panel image collected by an EL lens, defect features are extracted through a SimAM-OfficientNetV2 network model, a sample set is classified into a defect-free sample and a defect sample, high-precision real-time detection is carried out on various defects existing in the image through a YOLOV9 network model, and rapid discrimination of the defects is achieved.
Owner:SUZHOU UNIV OF SCI & TECH
Device and method for low-speed wind tunnel gust or flutter half-mode test
ActiveCN119437636AReduce the number of layoutsReduce processing costsAerodynamic testingSustainable transportationMarine engineeringClockwork
The invention discloses a device and a method for a low-speed wind tunnel gust or flutter half-mode test, belongs to the field of wind tunnel tests, and aims to solve the problems that an existing gust or flutter half-mode test device cannot realize complete release of heaving and pitching degrees of freedom and is difficult to share the two tests. The device comprises an overall frame, the overall frame is installed in a wind tunnel test section, two sliding rails are vertically arranged on the front end face of the overall frame, two sliding block sets are arranged on the left side and the right side of the rear end face of a tackle, the two sliding block sets are in sliding fit with the two sliding rails in a one-to-one correspondence mode, two spring seats are arranged at the top end of the overall frame, and horizontal shafts are arranged on the spring seats. The inner ring ends of the two clockwork springs are connected with the horizontal shafts of the two spring seats in a one-to-one correspondence manner, the outer ring ends of the two clockwork springs respectively droop to be connected with the pulley, and the model mounting seat is cylindrical and is in running fit with the pulley; the device can be used for a gust load retarding test and a body degree of freedom flutter test, and can be shared by the two tests.
Owner:CHINA AVIATION IND CORP HARBIN AERODYNAMICS RESEARCH INSTITUTE
Real-time monitoring system and method for coal mine electromechanical operation faults
InactiveCN119442000AReduce signal interferenceImprove stabilityElectrical testingInterference resistanceData acquisition
The invention discloses a coal mine electromechanical operation fault real-time monitoring system and method, and the system comprises a multi-sensor module which obtains the multi-source information of the operation state of coal mine electromechanical equipment based on a multi-sensor fusion technology, and a signal processing module carries out the noise filtering processing of the multi-source information, so as to reduce the signal interference in a complex environment. The fault diagnosis module establishes a fault diagnosis model based on the filtered data to realize real-time monitoring of faults; the coal mine electromechanical operation fault real-time monitoring system and method solve the problems that in the prior art, the anti-interference capacity is limited, the reliability of data collection is insufficient, the fault monitoring effect is directly affected, how to reduce the interference degree through reasonable sensor layout and network transmission mechanism design, and in the algorithm level, the real-time monitoring of the coal mine electromechanical operation fault is achieved. The problems that an existing analysis method is limited in noise suppression capacity and the actual application effect of a monitoring system is limited are solved.
Owner:PINGDINGSHAN RUIPING COAL & ELECTRICITY CO LTD PISHAN COAL MINE
Property service response method and system based on voice robot
ActiveCN119580741AEnhance feature expressionHigh Acquisition AccuracyData processing applicationsBiological modelsSound sourcesEngineering
The invention discloses a property service response method and system based on a voice robot, and relates to the technical field of voice recognition, and the method comprises the steps: collecting a voice signal, generating a spectrogram feature, generating keyword category prediction based on the spectrogram feature, and carrying out the signal screening according to a prediction result; and positioning a signal sound source direction based on a screening result, extracting a target voice signal, performing voice enhancement on the target voice signal, converting the voice into a text, performing semantic analysis on the text, and generating a user instruction. Through voice signal acquisition and adaptive noise suppression of the multi-channel microphone array, the signal acquisition precision is improved, based on an improved spectrogram feature generation mechanism, the feature expression ability of voice signals is improved, and the service response speed and accuracy are remarkably improved.
Owner:ANLIZHI INTELLIGENT ROBOT TECH (BEIJING) CO LTD
Track-based hollowing collection method and detection surface hollowing collection method
ActiveCN119595755AGet it quickly and accuratelyImprove collection efficiencyAnalysing solids using sonic/ultrasonic/infrasonic wavesElectromagnetic wave reradiationPoint cloudEngineering
The invention provides a track-based hollowing collection method and a detection surface hollowing collection method, and the method comprises the steps: carrying out the push-broom of a detection surface along a current track, and collecting the point cloud data and echo data corresponding to each sampling point in the current track; based on the coordinate information of the point cloud data, obtaining the position information of each sampling point on the detection surface; obtaining the hollowing degree corresponding to each sampling point by extracting sound wave characteristics in the echo data; based on the hollowing degree corresponding to each sampling point on the current track, acquiring a hollowing acquisition result corresponding to the current track; according to the invention, the collection efficiency is effectively improved, and the collection precision and accuracy are greatly improved.
Owner:NINGBO UNIV +2
Voltage transformer online thermal stress monitoring system based on LSTM neural network
PendingCN119618444AHigh Acquisition Accuracyeasy to handleThermometer applicationsApparatus for force/torque/work measurementElectric power systemControl cell
The invention relates to the technical field of power system equipment monitoring, in particular to a voltage transformer online thermal stress monitoring system based on an LSTM neural network, which comprises a control unit, a state display unit, a thermal stress monitoring unit, a voice alarm unit and a data storage unit, wherein the control unit is respectively connected with the state display unit, the thermal stress monitoring unit, the voice alarm unit and the data storage unit and is used for receiving and processing data information transmitted by the units and sending command data information to the units to control the units to complete corresponding functions. The units of the constructed monitoring module perform real-time monitoring cooperatively, the overall operation is simple and convenient, user experience is emphasized, the working efficiency is improved, the LSTM network is good at processing sequence data and capturing a thermal stress related time dependency relationship, dependence on a traditional method is reduced, the prediction efficiency is improved, and the parallel computing capability of the LSTM network can quickly process data, calculate thermal stress and perform early warning. And equipment faults caused by overlarge thermal stress are prevented.
Owner:SUIXI COUNTY POWER SUPPLY CO OF STATE GRID ANHUI ELECTRIC POWER CO LTD +1
Blade battery
ActiveCN222637596ULower internal resistancereduce spanCell component detailsElectrical batteryInternal resistance
The utility model provides a blade battery which comprises a battery shell and a pole roll, the pole roll is arranged in the battery shell, and the battery shell is provided with a first side and a second side which are oppositely arranged; the at least two pole column pairs are connected with the pole roll, and each pole column pair in the at least two pole column pairs comprises a positive pole column and a negative pole column which are arranged at an interval; wherein one of the at least two pole pairs is arranged on the first side, and the other one of the at least two pole pairs is arranged on the second side. By adopting the technical scheme provided by the utility model, the technical problem that the internal resistance of a blade battery in the prior art is relatively large can be solved.
Owner:WEICHAI POWER CO LTD +2
Construction project quality whole-process monitoring method and system based on Internet of Things
InactiveCN119443981AAcquisition speed is fastHigh Acquisition AccuracyData processing applicationsCharacter and pattern recognitionInformation sharingThe Internet
The invention discloses a construction project quality whole-process monitoring method and system based on the Internet of Things, and relates to the technical field of intelligent supervision. Comprising the following steps: S1, determining a quality monitoring target and requirement, and formulating a quality monitoring scheme based on the Internet of Things; s2, implementing the formulated quality monitoring scheme; s3, performing quality analysis processing on the construction data based on a machine learning algorithm, and performing corresponding quality early warning; and S4, carrying out whole-process collaborative management by utilizing the whole-process collaborative management platform. A large number of sensors are deployed in combination with the Internet of Things technology, engineering quality related data can be obtained in real time in the whole construction process, the data collection speed and precision are high, data processing and analysis are conducted in combination with a machine learning algorithm, and the quality problem in engineering can be rapidly and accurately analyzed; corresponding quality early warning is carried out; and a whole-process collaborative management platform is further established to realize information sharing and collaborative decision among all parties, so that the quality problem processing efficiency is improved.
Owner:GUIYANG JINYANG CONSTR DATA SERVICE CO LTD
Marine disaster risk prevention and control early warning system
PendingCN119672912AImprove collection efficiencyHigh Acquisition AccuracyAlarmsICT adaptationEarly warning systemData acquisition
The invention discloses a marine disaster risk prevention and control early warning system, which comprises a control center, a data acquisition unit, a data transmission unit, a data processing and analysis unit, an early warning model construction unit and an early warning release unit, a signal channel of the control center communicates with signal channels of the data acquisition unit, the data processing and analysis unit, the early warning model construction unit and the early warning issuing unit through the data transmission unit. By integrating the multi-source sensor network and the advanced remote sensing technology, all-directional, multi-dimensional and high-precision real-time monitoring of the marine environment can be realized, the monitoring coverage range is greatly expanded, the data acquisition efficiency and precision are improved, and the real-time monitoring of the marine environment can be realized by constructing a set of efficient early warning model. The models can deeply mine potential laws and relevance in data, the occurrence probability and the possible influence range of marine disasters are accurately predicted, continuous learning and optimization are achieved, and the accuracy and timeliness of the early warning model are remarkably improved.
Owner:SECOND INST OF OCEANOGRAPHY MNR
Ecological economic value assessment method based on data analysis
ActiveCN119476723AEvaluation results are intuitiveRealize evaluationResourcesEvaluation resultEnvironmental engineering
The invention discloses an ecological economic value evaluation method based on data analysis, and relates to the technical field of value evaluation.The method comprises the steps that during operation, multi-dimensional data related to an ecological system is collected, ecological resource utilization efficiency data, environmental protection contribution situation and environmental loss data are obtained, the collected multi-dimensional parameters are preprocessed, and the value of the ecological economic value is evaluated; a resource utilization benefit coefficient Rutil, an environment protection contribution coefficient Penv, an environment loss coefficient Eloss and an ecological economic value evaluation index Stjj are calculated, the ecological economic value evaluation index Stjj is compared with a preset first threshold V and a preset second threshold B, the future development direction and potential risks are evaluated, an ecological economic value evaluation report is automatically generated, and the ecological economic value evaluation efficiency is improved. The content of the report comprises detailed analysis of each coefficient, a trend analysis result, an ecological economic value evaluation index Stjj and a comparison result with a preset threshold value, the report adopts a form of combining charts, data and characters, and the evaluation result is visually displayed.
Owner:NANKAI UNIV
Camera capable of being automatically turned on and off
The utility model discloses a camera capable of automatically switching on and off, which belongs to the technical field of communication and comprises a camera module, a controller module, an infrared sensor module, a communication module, a storage module, a clock module, an interface module and a switching power supply module. The camera module, the infrared sensor module, the communication module, the storage module, the clock module, the interface module and the switching power supply module are respectively connected with the controller module; the camera module comprises an AR0230CS sensor and an SLVS interface, the storage module comprises a 256Mb Flash module and a 4Gb DDR3 module, the AR0230CS sensor is connected with the main control module through the SLVS interface, the Flash module and the DDR3 module are respectively connected with the main control module, the leaving and leaving states of people are judged through images and infrared rays, automatic on-off of a power supply of the intelligent socket is achieved, and then work of electric appliances is controlled.
Owner:GUANGZHOU YIWANG COMPUTER CO LTD
Brain-computer interface smart zoom glasses and visual adaptive adjustment system
ActiveCN121857977BHigh Acquisition AccuracyImprove anti-interference abilityMedical communicationInput/output for user-computer interactionData packSmartglasses
This invention discloses a brain-computer interface (BCI) smart zoom glasses and a visual adaptive adjustment system, relating to the field of smart glasses technology. It includes an EEG signal acquisition module that attaches to the user's head to collect signals, extracts feature vectors after noise reduction, and transmits them to a core control module; a visual environment perception module that collects target and environmental data, generates structured data packets, and transmits them synchronously; a core control module that integrates multi-source data, identifies visual intent, and decides on adjustment parameters; a smart zoom execution module that adjusts the lens focal length and provides closed-loop feedback to calibrate accuracy; a visual adaptive adjustment module that adjusts lens parameters based on the environment and fatigue state; a human-computer interaction module that supports manual operation, status display, and vibration feedback; and a data storage and update module that stores data and iteratively optimizes the model. This invention achieves accurate visual intent recognition through brain-computer interaction; personalized modeling adapts to different user needs, meeting the product development and application requirements of the wearable smart device manufacturing field.
Owner:GUANGDONG LIANGJINGJING TECH CO LTD
Strength monitoring equipment based on bridge safety detection
ActiveCN224245800UAchieve large-scale horizontal movementincrease diversityStands/trestlesGear wheelElectric machinery
Owner:JIANGSU KEDI CONSTR ENG QUALITY INSPECTION CO LTD
Endoscope image recognition method
PendingCN119579859Aquality improvementImprove efficiencyImage enhancementImage analysisNuclear medicineEndoscopy
The invention relates to an endoscope image recognition method which comprises the following steps: acquiring an endoscope detection item, and determining a recognition area, a recognition target and recognition precision of the endoscope detection item; performing image acquisition on the recognition area through the endoscope; the collected endoscope image is preprocessed; according to the endoscope detection item, the preprocessed image is recognized through a preset image recognition model, and a recognized recognition target is output. The method has the effect of improving the endoscope image recognition efficiency and recognition precision.
Owner:SHANGHAI AILU SENSING TECH CO LTD
Method and System for Constructing 3D Models of Construction Sites by Integrating Multiple Data Sources
ActiveCN121527338BEnsure Radiation ConsistencyRealize precise identificationImage enhancementImage analysisBlind zoneEngineering
This invention provides a method and system for constructing a 3D model of a construction site by combining multiple data sources. It relates to the field of data processing technology. The method includes: retrieving satellite imagery at a preset resolution to obtain a full-area stereo image pair dataset; performing radiometric correction to generate a regional surface model and a regional elevation model; performing raster-level modeling defect detection to locate distributed blind zone blocks; fitting obstacle avoidance paths to generate optimized obstacle avoidance flight trajectories; driving a UAV to perform multi-angle surround scanning to directionally collect dense point clouds in the distributed blind zones; constructing a distributed blind zone model; and performing microscopic overlay to output a 3D model of the construction site. This invention solves the technical problems of existing construction site modeling methods, which have limitations in coverage, modeling efficiency, and data real-time performance, and rely on a single data source, failing to provide a comprehensive and accurate 3D model of the construction site, thus affecting construction progress and decision-making.
Owner:BEIJING HUALIAN POWER ENG SUPERVISION CO +1
A drilling retrievable microseismic sensor installation method
ActiveCN118295008Bimprove protectiongood injectabilitySurveyAcoustic presence detectionMining engineeringMechanical engineering
The present invention discloses a drilling recyclable microseismic sensor installation method, comprising the following steps: S1: making a sensor installation base and a hole protection steel pipe; S2: drilling a hole in the rock mass of the monitoring area; S3: assembling the microseismic sensor, the installation base, and the hole protection steel pipe and placing them in the borehole; S4: sealing the borehole and grouting; S5: connecting a collector and performing microseismic monitoring; S6: recovering the microseismic sensor. The present invention aims at the problems of high ground stress, soft and broken rock mass, and large mining impact in underground engineering, realizes the protection, recovery and recycling of microseismic sensors, and improves the coupling effect of drilling installation of microseismic sensors and the quality of signal acquisition.
Owner:CHINA UNIV OF MINING & TECH
Outdoor 20-kilovolt lightweight voltage transformer
ActiveCN224203946Ureduce volumereduce weightTransformersClimate change adaptationTransformerStructural engineering
The utility model belongs to the technical field of voltage transformers, and particularly relates to an outdoor 20-kilovolt lightweight voltage transformer. The transformer comprises a rectangular iron core on which a primary coil and a secondary coil are wound; a cast aluminum junction box is arranged on the side surface of the totally-closed shell; a stainless steel waterproof joint is arranged on one side of the totally-closed shell; a steel wire type lead sealing rope is fixedly arranged outside the cast aluminum junction box for locking; the primary coil is connected with an A-phase connecting line; the A-item connecting line is connected with an M10 primary bolt; the N-phase connecting line is connected to the M8N terminal bolt, the secondary coil is connected with two secondary an connecting lines, the two secondary an connecting lines are connected to the M6 secondary terminal bolt, and the front grounding connecting line is connected to the M8 grounding bolt. The anti-theft door is light in weight, high in protection performance, easy to install, high in anti-theft performance, high in reliability and good in safety and economical efficiency.
Owner:DALIAN HUAYI ELECTRIC POWER & ELECTRIC APPLIANCE CO LTD
A method, device and system for dynamically collecting railway data using on-board equipment
ActiveCN119262003BGuaranteed accuracyensure safetyMeasurement devicesParticular environment based services
The present invention discloses a method, device and system for dynamically collecting railway data using on-board equipment, and relates to the technical field of railway data collection. The method comprises: a train monitoring device outputs the current running data of the train in real time, and a Beidou positioning module outputs the current positioning data of the train in real time; a central processing unit receives the data output by the train monitoring device and the Beidou positioning module in real time, and uploads it to a public network server; the public network server packages the received valid collected data in real time and sends it to an intranet map server in the railway intranet; the intranet map server extracts the line number, line type, mileage data and longitude and latitude data from the valid collected data, and integrates them into map data; and automatically generates and updates the railway map based on the established map data. Compared with the existing coordinate collection method, the automatic collection method of the present invention ensures data accuracy, avoids cumbersome manual collection methods, and improves collection efficiency and accuracy.
Owner:BEIJING SANLING JIYE TECH DEV CO LTD
Method and device for correcting signal crosstalk between layers of a multi-layer detector, and electronic device
This application relates to the field of radiation imaging technology, and particularly to a method, apparatus, and electronic device for interlayer crosstalk correction in a multilayer detector. The method includes: acquiring projection signals of each layer from the multilayer detector under target scanning parameters; determining interlayer crosstalk correction convolution kernels for different layers in the multilayer detector based on the structural parameters of the multilayer detector and the target scanning parameters, wherein the interlayer crosstalk correction convolution kernels represent a first mapping relationship between the interlayer crosstalk signal and the projection signal; estimating the interlayer crosstalk signal in the multilayer detector based on the projection signals of each layer and the interlayer crosstalk correction convolution kernels; and correcting the projection signals of each layer based on the interlayer crosstalk signal, thereby achieving interlayer crosstalk signal correction. This solves the problems of interlayer signal crosstalk caused by interlayer radiation scattering within the multilayer detector and the resulting artifacts in the energy spectrum reconstruction image in related technologies.
Owner:TSINGHUA UNIVERSITY
An optical power harvesting device and method
The application discloses an optical power collection device and method, relates to the technical field of optical signal detection, and comprises the following: a photoelectric detector for converting an optical signal into a current signal; a transimpedance amplifier for converting the current signal into a pulse voltage signal; a peak detector for detecting the peak value of the pulse voltage signal; an RC filter network for filtering noise of the pulse voltage signal; a low-frequency amplifier for amplifying the low-frequency pulse voltage signal; an ADC collection module for converting the amplified pulse voltage signal into a digital signal; a first feedback network for adjusting the gain of the transimpedance amplifier; a second feedback network for adjusting the gain of the low-frequency amplifier; and a microcontroller for controlling the first feedback network to adjust the gain of the transimpedance amplifier according to the peak value of the pulse voltage signal and for controlling the second feedback network to adjust the gain of the low-frequency amplifier according to the digital signal.
Owner:ZHUHAI GUANGHENG TECH CO LTD
Delay test system and method based on hall switch devices
ActiveCN121410522BAccurately test latency characteristicsimprove accuracyCircuit interrupters testingCommunication interfaceTemperature control
The application provides a delay test system and method based on a Hall switch device, comprising: a magnetic field generation module containing a programmable current source and a coil to generate a precisely controlled magnetic field change; a temperature control module integrating a temperature sensor and a heating / cooling device to realize constant temperature or temperature scanning test; a signal acquisition module using a high-frequency sampling device to collect Hall device output signals; a data processing module using an embedded processor to realize automatic threshold detection and delay calculation; a general test interface using a test seat with replaceable probes to adapt to different packaged devices; a digital communication interface using an SPI or I2C interface to output test results; in the application, the main structures include a magnetic field generation module, a temperature control module, a signal acquisition module, a data processing module, a general test interface, a digital communication interface and a threshold calibration module, and these modules cooperate with each other to provide a solid foundation for precisely testing the delay characteristics of the Hall switch device.
Owner:NANTONG PUZHIXIN TECHNOLOGY CO LTD
Impedance sampling device applied to matcher and semiconductor process equipment
PendingCN119555981AHigh Acquisition AccuracyReduce measurement errorElectric discharge tubesResistance/reactance/impedenceSignal processing circuitsHemt circuits
The invention provides an impedance sampling device applied to a matcher, an automatic matcher and semiconductor process equipment, and relates to the technical field of semiconductors, the impedance sampling device comprises a current sampling circuit, a voltage sampling circuit and a signal processing circuit; the current sampling circuit is used for collecting a current signal of a main loop and transmitting the current signal to the signal processing circuit; the voltage sampling circuit is used for collecting a voltage signal of a main loop and transmitting the voltage signal to the signal processing circuit; the signal processing circuit is used for calculating impedance based on the current signal and the voltage signal; the signal processing circuit is also used for adjusting the current coupling coefficient of the current sampling circuit according to the current signal so as to control the current measurement range of the current sampling circuit; the signal processing circuit is also used for adjusting the voltage coupling coefficient of the voltage sampling circuit according to the voltage signal so as to control the voltage measurement range of the voltage sampling circuit. The signal acquisition precision of the current signal and the voltage signal is improved, and the impedance calculation error can be reduced.
Owner:BEIJING AURASKY ELECTRONICS CO LTD
Natural gas comprehensive operation and management platform based on the Internet of Things
ActiveCN119356454BRealize automatic generationHigh Acquisition AccuracyData processing applicationsPipeline systems
The present invention discloses a natural gas comprehensive operation and control platform based on the Internet of Things, which relates to the field of natural gas management technology, and includes: a cloud server; a data acquisition unit, which is used to collect the operating parameters of each node of the natural gas pipeline network and transmit them to the cloud server; a simulation modeling unit, which constructs a virtual model of the natural gas pipeline network according to the operating parameters and performs simulation analysis; a solution generation unit, which uses an optimization algorithm to calculate a control instruction set based on the simulation results and combines them into a natural gas operation and control solution; a pipeline network control unit, which is used to receive the natural gas operation and control solution, adjust the valve opening, and detect the physical quantity deviation value during the adjustment process, and feed the physical quantity deviation value back to the cloud server to update the natural gas operation and control solution. The present invention improves the acquisition accuracy and comprehensiveness of pipeline network operation data, realizes real-time monitoring of gas components, and improves the operation efficiency, safety and reliability of the natural gas pipeline network.
Owner:ANHUI PROVINCE NATURAL GAS DEV CO LTD
A 3D model fitting generation device and a defect detection method for cable defects
The application discloses a kind of 3D model fitting generation device and defect detection method of cable defect;Through the combination of two groups of ray machines and DR imaging plates, the 360° internal structure profile of each layer of cable is obtained, and the cable surface modeling is obtained by two laser camera modules;Two modeling superimposes to form the model to be evaluated;Through artificial synthesis and difficult-to-obtain defect pattern merging conventional defect pattern, a more complete defect model training library is constructed, a cable defect deep learning model is formed using the training library deep learning neural network training, and a more complete and accurate defect evaluation report is obtained by comparing the model to be evaluated with the defect deep learning model;The structure of the device is simple, and compared with the traditional CT machine rotating structure, it is lighter and has lower cost;And the defect model library is more perfect than the conventional model library, so the defect evaluation is more accurate.
Owner:INNOVATION & INNOVATION CENT OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD +1
An automatic logging device
ActiveCN119373433BAchieve high-frequency batch processingquality improvementConstructionsFlushingMining engineeringImaging analysis
This application belongs to the field of geological logging technology, specifically disclosing an automated logging device, including a circulating transport mechanism, a feeding mechanism, a vibration mechanism, a drilling fluid recovery mechanism, a cuttings cleaning mechanism, an imaging analysis mechanism, a drying and storage mechanism, and a screen cleaning mechanism. The circulating transport mechanism includes multiple screens arranged in sequence, which circulate along a closed path to perform the following operations: the feeding mechanism injects material into the screens; the drilling fluid recovery mechanism recovers drilling fluid from the material in the screens; the cuttings cleaning mechanism cleans the material in the screens to leave clean cuttings; the imaging analysis mechanism performs imaging analysis on the clean cuttings in the screens; the drying and storage mechanism receives, dries, and stores the clean cuttings in the screens; and the screen cleaning mechanism cleans the screens. The vibration mechanism applies a vibration force to the screens at the drilling fluid recovery mechanism and the cuttings cleaning mechanism. The automated logging device of this application can continuously process drilling materials in batches.
Owner:WUHAN SHIP COMM RES INST (NO 722 RES INST OF CHINA STATE SHIPBUILDING CORP)