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118results about How to "Avoid accuracy" patented technology
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User information input method and system in intelligent television all-in-one machine
ActiveCN119676493Aaccurate analysisAccurate processingInput/output for user-computer interactionCharacter and pattern recognitionUser inputEngineering
The invention relates to the technical field of television image communication, in particular to a user information input method and system in an intelligent television all-in-one machine. The method comprises the following steps: collecting a user image, carrying out white balance correction and focusing processing, generating a moving object focusing image, carrying out identification and attention tendency analysis on a character in the focusing image, obtaining character tendency data, analyzing a historical interaction image, identifying an interaction mode and constructing a user intention prediction model, and obtaining a user intention prediction result. And when the tendency data shows that the user preferences the television content, intention drilling and auxiliary adjustment are performed on the current image based on the prediction model, predicted user input information is generated, logic conflicts in the predicted information are detected, feedback optimization is performed, and final user input information is output. According to the invention, a more accurate and more flexible user information input method is realized.
Owner:SHENZHEN MEIJIA TECH CO LTD
Searching method and device, electronic equipment and readable storage medium
PendingCN119513282Aeasy to handleImprove experienceDigital data information retrievalSemantic analysisEngineeringData mining
The invention relates to the technical field of artificial intelligence, and provides a search method and device, electronic equipment and a readable storage medium. The method comprises the following steps: acquiring a search term for searching; matching the search terms through a preset database to obtain an initial matching result; obtaining a target search term according to the search term and the initial matching result, and performing semantic extension on the target search term to obtain at least one extended search term; searching by utilizing a target search term and at least one extended search term to obtain a first search result corresponding to the target search term and a second search result corresponding to the at least one extended search term; and determining a target search result corresponding to the search term according to the first search result and the second search result. Through initial semantic matching, semantic extension and comprehensive analysis, a more accurate and comprehensive search result meeting the search intention of the user can be provided for the user.
Owner:BEIJING LONGZHI DIGITAL TECH CO LTD
Elevator door change gear detection device
InactiveCN119394638Aautomatic replacementeasy to useMachine part testingMaterial strength using repeated/pulsating forcesDrive wheelElectric machinery
The invention relates to the field of elevator door change gear detection, in particular to an elevator door change gear detection device, which solves the problem that a door change gear can be automatically replaced while the elevator door change gear detection device is suitable for simultaneous detection of various door change gears with different sizes, and comprises a cabinet body and a driving motor, and an output shaft is fixedly installed at the output end of the driving motor, a plurality of driving wheels are fixedly installed on the outer wall of the output shaft, and the driving wheels are installed at equal intervals. According to the device, the function of automatically adjusting the height of the change gear seat can be achieved, the device can be conveniently suitable for door change gears with different sizes and diameters, the device can conveniently detect the door change gears with different sizes at the same time, a replacement box of the device can achieve automatic replacement when the door change gears descend after detection is completed, and the detection efficiency is improved. Manual operation is not needed, and the detection efficiency of the device can be improved on the premise of ensuring safety.
Owner:RUIAN ZHANPENG MACHINERY CO LTD
Large language model training method and device, computer equipment and storage medium
ActiveCN119397010Aprevent overfittingavoid accuracySemantic analysisKnowledge representationProgramming languageLinguistic model
The embodiment of the invention discloses a big language model training method and device, computer equipment and a storage medium, and belongs to the technical field of computers. According to the method, a first abstract text and a second abstract text are introduced in the training process of a large language model, more learnable information is provided for model training, meanwhile, due to the fact that the first abstract text and the second abstract text contain different information amounts, and the first abstract text contains correct statements and error statements, the learnable information is more learnable. Compared with the prior art, the two different abstract texts of the same sample text are subjected to comparative learning, and correct statements and wrong statements in the first abstract text are learned in a differentiated manner, so that the problems of model overfitting, inaccurate generation and the like caused by single abstract text are avoided, the generalization performance of the model is improved, and the accuracy of the model is also improved.
Owner:TENCENT TECHNOLOGY (SHENZHEN) CO LTD
Port occupation detection method and device, equipment, storage medium and program product
PendingCN119625275AImprove the accuracy of quality inspectionavoid efficiencyCharacter and pattern recognitionBiological modelsAlgorithmThresholding
The invention relates to the technical field of artificial intelligence, and provides an occupied port detection method and device, equipment, a storage medium and a product. The method comprises the steps of obtaining a to-be-detected image; inputting the to-be-detected image into the target detection model to obtain a port position detection result; based on the port position detection result, determining a currently occupied port of the optical cable cross connecting cabinet to be subjected to quality inspection; the target detection model is obtained by pre-training an initial model constructed based on a YOLO-EF algorithm based on a preset loss function, a sample detection image and a sample port position detection result; the sample port position detection result is used for adjusting model parameters of the initial model, so that the preset loss function conforms to a preset threshold value. Through the above mode, a semantic segmentation model does not need to be adopted, the problems of low detection efficiency and low accuracy of the semantic segmentation model can be avoided, accurate detection of the ports occupied by the optical cable cross connecting cabinet is realized by using the deep learning model, and improvement of the quality inspection accuracy of the optical cable cross connecting cabinet is facilitated.
Owner:CHINA MOBILE COMM GRP SHAANXI CO LTD +1
Method and device for predicting sealing performance of electrical penetration assembly and storage medium
ActiveCN119673497Aavoid wastingavoid accuracyDetection of fluid at leakage pointMeasurement of fluid loss/gain rateThermodynamicsMechanical engineering
The invention discloses a method and device for predicting the sealing performance of an electrical penetration assembly and a storage medium, and the method comprises the steps: obtaining the structure attribute information of a target electrical penetration assembly in response to a prediction signal of the sealing performance of the target electrical penetration assembly, external environment attribute information of the target electrical penetration assembly at different moments and gas attribute information of gas in a barrel of the target electrical penetration assembly at different moments are collected in real time, and the gas attribute information comprises gas temperature and gas pressure of the gas in the barrel of the target electrical penetration assembly at different moments; based on the gas temperature, judging whether the target electrical penetration assembly meets a preset condition of sealing performance monitoring or not; and if the target electrical penetration assembly meets the preset condition, predicting the sealing performance of the target electrical penetration assembly based on the structure attribute information, the external environment attribute information and the gas attribute information.
Owner:NUCLEAR POWER INSTITUTE OF CHINA
Building pipeline quality detection equipment
PendingCN119666588Aavoid accuracyeasy to useDetection of fluid at leakage pointMaterial strength using tensile/compressive forcesConstruction engineeringRotating disc
The invention relates to the technical field of pipeline quality detection, and discloses building pipeline quality detection equipment, which comprises a base, and further comprises a fixed disc fixedly mounted at the top of the base; the rotating disc is rotationally mounted in the center of the top of the fixed disc; the L-shaped frame is fixedly mounted at the top of the base; the detection assembly is mounted at the top of the rotary table and used for detecting the building pipeline; the sealing assembly is arranged on the L-shaped frame and the base, and the sealing assembly is used for sealing the detection assembly. According to the invention, pressure resistance and crack damage detection can be synchronously carried out on the building pipeline, the situations of inaccurate detection and troublesome detection are avoided, in addition, the building pipeline with air leakage can be marked by a brush, and the disassembled pipeline with unqualified pressure resistance can directly fall onto the fixed disc, so that the detection result of the building pipeline is clear and visual, and the detection efficiency is improved. And the use effect of the equipment is improved.
Owner:JIANGSU JINCHENG CONSTR CO LTD
Machine tool cutter space pose on-machine measuring device and measuring method thereof
ActiveCN119609766AAchieving Absolute Measurementsavoid physical deformationMeasurement/indication equipmentsMeasurement deviceGalvanometer
The invention discloses a machine tool cutter space pose on-machine measurement device and a measurement method thereof, and the device comprises a calibration module which is installed at one side of a cutter handle of a cutter; a frequency-modulated continuous wave laser interference system and a galvanometer are installed on a vibration isolation workbench of the machine tool, light beams emitted by the frequency-modulated continuous wave laser interference system achieve conversion of a set angle through the galvanometer so as to cover the calibration module, and a space positioning algorithm is adopted to fit the plane where the target ball is located. And obtaining a deviation value between the mass center and the normal vector in two measurement results before and after machining, and taking the deviation value as the tool space pose error before and after machining of the machine tool, so that rapid and high-precision direct measurement of the tool space pose error is realized. The method has the advantages of being large in measurement range, high in measurement precision, simple in structure and low in cost, and the defect that in an existing method, the position and pose errors of the tool are indirectly calculated through an error model is overcome.
Owner:XI AN JIAOTONG UNIV
Welding spot positioning method for underground diaphragm wall reinforcement cage
The invention belongs to the technical field of robot welding, and discloses a welding spot positioning method for an underground diaphragm wall reinforcement cage, which is used for positioning a welding spot between a transverse bar and profile steel, and comprises the following steps: establishing a three-dimensional coordinate system, and obtaining a three-dimensional point cloud data set of the transverse bar and the profile steel, processing the three-dimensional point cloud data set to form a first point set, determining a starting point coordinate of a center line of the connection section according to the first point set, processing the three-dimensional point cloud data set to form a second point set, determining an end point coordinate of the center line of the connection section according to the second point set, and determining the end point coordinate of the center line of the connection section according to the starting point coordinate and the end point coordinate of the center line of the connection section. And determining starting point coordinates and terminal point coordinates of a welding seam between the connecting section and the profile steel. By means of the arrangement, the welding spot positioning method for the underground diaphragm wall reinforcement cage can achieve accurate positioning of the welding spot position, and the welding quality and the operation efficiency can be improved easily.
Owner:SHANGHAI MECHANIZED CONSTR GRP
Coaxiality adjusting device for hydraulic oil pump coupler
The utility model discloses a hydraulic oil pump coupling coaxiality adjusting device, and relates to the technical field of coaxiality adjustment. Comprising a hydraulic oil pump base, an oil pump arranged at one end of the hydraulic oil pump base, a motor base arranged at the other end of the hydraulic oil pump base, a driving motor installed on the motor base, and a coupler connected with the output end of the driving motor and a connecting shaft of the oil pump. The throw measuring assembly is arranged on the coupler and used for measuring the radial and axial throw of the coupler, and the coaxiality adjusting assembly is used for adjusting the transverse and longitudinal positions of the motor base so as to adjust the coaxiality of the coupler. When the motor base is transversely adjusted, according to data measured by the radial dial indicator and the axial dial indicator at the position of the coupler, the first dial indicator is adopted to accurately monitor the movement condition of the motor base while the transverse adjusting jack is used for adjustment, inaccurate adjustment and repeated adjustment are avoided, and the coaxiality deviation of the coupler of the pressure oil pump is small after adjustment is completed.
Owner:THREE GORGES JINSHAJIANG CHUANYUN HYDROPOWER DEV CO LTD
Fraud gang identification method and system based on knowledge graph
PendingCN119599674Aimprove accuracyavoid accuracyFinanceSpecial data processing applicationsFinancial transactionRelationship extraction
The invention relates to the technical field of financial data analysis, and discloses a fraud gang identification method and system based on a knowledge graph. The method comprises the following steps: extracting financial transaction entities in equipment fingerprint data and transaction data generated in a financial transaction process and a relationship between the financial transaction entities based on an entity identification technology and a relationship extraction technology, and constructing a financial transaction knowledge graph; and carrying out financial transaction feature analysis on the financial transaction knowledge graph based on a graph analysis technology, identifying target nodes with an association relationship, and determining a financial fraud gang. On the basis of the knowledge graph constructed by utilizing the equipment fingerprint data and the transaction data, the graph analysis technology is adopted, the incidence relation between entities in the financial data can be comprehensively analyzed, potential fraud gangs are identified, and the problem that the fraud gangs in different financial fields cannot be identified is solved. And the hidden association and behavior pattern are difficult to capture by a single data feature, so that the accuracy of cross-domain financial fraud gang identification is improved.
Owner:HUNAN SANXIANG BANK CO LTD
Heat exchange station equipment operation information acquisition and generation method based on big data analysis
InactiveCN119617503AImprove processing efficiencyAccurate evaluationThermometers using mean/integrated valuesLighting and heating apparatusInformation processingThermodynamics
The invention relates to the field of data processing, in particular to a heat exchange station equipment operation information acquisition and generation method based on big data analysis, which comprises the following steps: periodically detecting a temperature reference value of each target heating user to obtain an average temperature reference value and a temperature difference value; a temperature analysis mode is determined according to the average temperature reference value and the temperature difference value, and the temperature analysis mode comprises the steps that detection is conducted on temperature fluctuation values in a preset fluctuation detection range, and whether compensation analysis is conducted on the temperature reference values of all the target heating users or not is determined according to the distribution state of all the types of users; determining a setting mode of an early warning time period according to the heating effect trend and the temperature difference value; and if the equipment state is under the heat exchange early warning condition, equipment state early warning is carried out, and the equipment operation information processing efficiency in the equipment operation maintenance process is improved.
Owner:BEIJING DISTRICT HEATING GRP CO LTD
Multi-modal analysis and diagnosis model based on combination of multi-source data fusion and large model
PendingCN119416140AReduce development costsshorten development timeObject oriented databasesKnowledge representationShardMulti source data
The embodiment of the invention discloses a multi-modal analysis and diagnosis model based on combination of multi-source data fusion and a large model, and belongs to the technical field of large models, and the model comprises a scene model module which is used for calling different function modules according to different tasks and scenes; the industry large model module is used for establishing different industry large models according to different industry requirements; the task execution module is used for calling different task models and function applications according to different task requirements; the matching tool module is used for providing tools or engines according to task requirements; the data knowledge module is used for establishing various databases and storing different data in the corresponding databases in a classified mode, diversified and fragmented AI application requirements can be rapidly met, the development cost and time can be reduced, the development efficiency can be improved, information and value in the data can be fully mined, and the development efficiency can be improved. And the influence caused by insufficiency or inaccuracy of the annotated data can be avoided.
Owner:BEIJING AEROSPACE ZHIKONG MONITORING TECH INST
Foundation treatment process
PendingCN119392690AGuaranteed accuracyavoid accuracyGeometric CADFoundation testingArchitectural engineeringKarst
The invention provides a foundation treatment process, and relates to the technical field of foundation treatment. The foundation treatment process specifically comprises the following steps: S1, geological survey and three-dimensional modeling; s2, establishing a micro-seismic monitoring system; s3, applying a self-healing material; s4, construction of a rotary drilling rig; s5, performing real-time construction monitoring and adjustment; s6, detecting the hole forming quality of the pile foundation; s7, concrete is poured, and a self-healing material is injected; and S8, geological treatment and acceptance after construction. Safety and accuracy of the construction process can be guaranteed by monitoring changes of underground rock strata and karst caves in real time, the construction quality of each pile foundation is guaranteed through data analysis and dynamic adjustment of a construction scheme, self-repairing of the material can be achieved through the fungus self-healing cement-based material, durability and stability of the pile foundations are enhanced, and the construction quality of the pile foundations is improved. The long-term effect of foundation treatment is improved, the later maintenance cost is reduced, the pile foundation construction quality under the complex karst geological condition can be ensured, the construction efficiency is improved, the cost is reduced, and the engineering safety and stability are ensured.
Owner:中国电建集团贵州工程有限公司
Polishing cloth trepanning device and method
The invention discloses a polishing cloth trepanning device and method, and relates to the technical field of polishing machines, the polishing cloth trepanning device comprises a bracket and an adjusting seat, the bracket is provided with a first cutter body, a cloth pressing body and an expansion body, the bracket is installed from the outlet end of a liquid guide hole of a polishing disc, the first cutter body is used for cutting the polishing cloth at the outlet end of the liquid guide hole, and the cloth pressing body is used for pressing the cloth at the outlet end of the liquid guide hole. The cloth pressing body is used for pressing the cutting edge of the polishing cloth into the liquid guide hole and abutting against the inner wall of the outlet end of the liquid guide hole. The adjusting seat is arranged from the inlet end of the liquid guide hole, and the adjusting seat is matched with the expansion body, so that the expansion body is tightly supported on the inner wall of the liquid guide hole after being matched, and the bracket is fixed in the liquid guide hole. According to the polishing cloth tapping device, accurate finishing and fixing of the polishing cloth at the position of the liquid guide hole are achieved, and the problems that the polishing cloth is degummed and a wafer is scratched due to improper manual finishing are effectively avoided.
Owner:BEIJING CHIPTRON TECH CO LTD
Fault stress disturbance physical simulation system and method
PendingCN119672239Aavoid accuracyVerify accuracyDesign optimisation/simulationCAD numerical modellingAlgorithmOptimal modeling
The invention discloses a fault stress disturbance physical simulation system and method, and relates to the technical field of oil and gas field development. A physical simulation system for disturbance of a fault stress field comprises a strain calculation module which is used for calculating data of a 3D displacement field, a 3D strain field and a 3D deformation field of an object to be measured in the loading process through three-dimensional reconstruction and a digital image correlation algorithm according to surface feature changes of an image of the object to be measured; and the model optimization module is used for adjusting a digital modeling design method according to the data of the 3D displacement field, the 3D strain field and the 3D deformation field to obtain an optimal modeling method. In addition, the invention further discloses a fault stress field disturbance physical simulation system based on the system. According to the method, the problem of verifying the accuracy of a finite element solution result is solved, the modeling technology is optimized and adjusted, the optimal modeling method is conveniently obtained and popularized and applied to three-dimensional modeling, and therefore the disturbance rule of a fault on ground stress is found out.
Owner:PETROCHINA CO LTD
Adjustable water gate device for water conservancy project
PendingCN119593361AImprove cleanlinessHigh control precisionBarrages/weirsWater resourcesWater quality
The invention relates to an adjustable water gate device for a water conservancy project, and relates to the field of water conservancy projects, and the adjustable water gate device for the water conservancy project comprises a gate chamber used for being mounted to a dam body; the gate is slidably connected to the gate chamber in the height direction, a lifting device used for driving the gate to move up and down is arranged between the dam body and the gate, and a plurality of impurity removal openings are formed in the position, close to the top of the gate, of the gate in the height direction at intervals; the multi-stage opening and closing mechanism is arranged on the gate and used for controlling opening or closing of the single impurity removal opening; and the impurity removing mechanism is arranged on one side of the impurity removing opening and used for intercepting and removing impurities floating on the water surface. The device has the effects that in the process of conveying water resources to the downstream, floating garbage and algae are not prone to being gradually accumulated on the water surface close to one side of the gate, the floating garbage and algae are prevented from being accumulated and fermented for a long time to generate a large amount of unpleasant smell, and pollution to water quality is reduced.
Owner:CANGZHOU WATER CONSERVANCY ENG CHU
Microchannel plate heat exchanger performance test system
ActiveCN222528960UImprove heat transfer effectimprove performanceStructural/machines measurementFlow transducerPlate heat exchanger
The utility model provides a micro-channel plate heat exchanger performance test system which comprises an upper cover plate, a heat source chip support, a heat source chip, an inlet channel connecting piece, an outlet channel connecting piece and a lower cover plate, and a single heat exchange plate, the heat source chip and the heat source chip support are installed between the upper cover plate and the lower cover plate. The heat source chip is arranged below the heat exchange area of the single heat exchange plate and is positioned in the mounting groove of the heat source chip support; the left and right ends of the upper cover plate and the lower cover plate are respectively and hermetically provided with an inlet channel connecting piece and an outlet channel connecting piece; a pressure sensor and a threaded thermal resistor are arranged near a liquid inlet / outlet of the single heat exchange plate and are used for measuring inlet / outlet pressure and inlet / outlet temperature; the inlet channel connecting piece is connected with a fluid supply pipeline and is provided with a flow sensor. The test system is used for carrying out heat exchange performance measurement on a single plate to ensure that the performance of the single heat exchange plate is improved, so that the whole heat exchanger is optimized.
Owner:HEBEI UNIV OF TECH
Engineering quantity list processing method and system based on double analysis correction
ActiveCN119623476AImprove recognition accuracyImprove recognition efficiencyMathematical modelsSemantic analysisLinguistic modelTheoretical computer science
The invention provides an engineering quantity list processing method and system based on double analysis and correction, and relates to the technical field of data processing, and the method comprises the steps: obtaining an engineering quantity list; carrying out electronic version conversion on the paper version engineering quantity list; extracting a plurality of identification engineering categories of the target engineering quantity list and the identification engineering quantity of each identification engineering category based on a target detection algorithm; extracting an initial text of the target bill of quantity in combination with a Bayesian algorithm; performing semantic analysis on the initial text in combination with a large language model taking dynamic context lexical elements as input data, and outputting a semantic text of a target bill of quantity; aligning each identification project category and each analysis project category to a target entity; comparing the identification work amount and the analysis work amount which belong to the same target entity; and under the condition that the comparison results are consistent, outputting the semantic text as an engineering quantity list processing result, otherwise, marking a comparison difference result in the semantic text. And the compiling efficiency and accuracy of the bill of quantity are improved.
Owner:ZHEJIANG YUANDA ENG CONSULTING CO LTD
Autonomous mobile device, control method and device thereof and storage medium
PendingCN119512064AImprove recognition accuracyHigh degree of intelligenceImage enhancementImage analysisPoint cloudEngineering
The present disclosure relates to an autonomous mobile device, a control method and apparatus thereof, and a storage medium, the method comprising: a shooting step of shooting an image of a working environment of the autonomous mobile device; a distance measurement step: obtaining point cloud data of a working environment of the autonomous mobile device; an identification step: inputting the image into an image object identification model for identification to obtain an object in the image and a space range of a detection frame where the object is located; an obtaining step: obtaining the number of the point cloud data in the space range of the detection frame; a judgment step: judging whether the quantity of the point cloud data exceeds a preset quantity threshold value or not; and an object positioning step of calculating the spatial position of the detection frame according to the point cloud data in the spatial range of the detection frame under the condition that the number of the point cloud data exceeds a preset number threshold. Therefore, wrong object recognition or wrong object position judgment can be avoided, the accuracy of obstacle recognition and obstacle avoidance of the autonomous mobile equipment is improved, and thus the intelligent degree of the autonomous mobile equipment is improved.
Owner:SUGAN TECH BEIJING
Self-repairing structure for integrated circuits
This utility model provides a self-repairing structure for integrated circuits, relating to the field of circuit board repair equipment technology. It includes a repair equipment base and a clamping plate. The clamping plate is located on the top of the repair equipment base. A repair component slot is formed on the top of the repair equipment base. Two bearing through holes are formed through the inner wall of the repair component slot. Bearing rods are provided on the inner walls of both bearing through holes. A support plate is fixed to one side of each bearing rod, and a support frame is fixed to one side of the support plate. The clamping plate is located on top of the support frame. A sliding adjustment groove 1 and a sliding adjustment groove 2 are formed through the top and bottom of the support frame. A fixing rod 1 is provided on the inner wall of the sliding adjustment groove 1 and is fixed to the bottom of the clamping plate. A fixing rod 2 is provided on the inner wall of the sliding adjustment groove 2 and is fixed to the bottom of the clamping plate. A locking knob 1 is threaded onto the surface of the fixing rod 1, and a locking knob 2 is threaded onto the surface of the fixing rod 2. An integrated circuit board clamping groove is formed on one side of the clamping plate.
Owner:ACDC CORP
Unbiased recommendation method based on auxiliary information learning invariance and environmental preference
PendingCN119441628Aavoid inaccuraciesavoid accuracyDigital data information retrievalSpecial data processing applicationsData miningBiology
Owner:JILIN UNIVERSITY
Power plant safety production management method and device
PendingCN119539499Aefficient managementavoid accuracyData processing applicationsInformation technology support systemPlant safetyProduction risk
The invention belongs to the technical field of power production safety, and discloses a power plant safety production management method and device. The method comprises the steps of obtaining safety information data of a power plant from a database; identifying safety production risk factors existing in the power plant based on the safety information data; analyzing the safety production risk factors to determine the relevance between the safety production risk factors and each safety accident type; extracting a key safety production risk factor corresponding to each safety accident type from the safety production risk factors based on the relevance; and performing risk assessment based on the key safety production risk factors, and performing safety production management based on a risk assessment result. Through the above mode, the risk can be effectively and comprehensively detected, the problem that risk identification is not timely and accurate due to a manual management mode is avoided, and effective management of safety production of a power plant is ensured.
Owner:新疆准能投资有限公司
Calibration-free gas sensing chip based on infrared absorption spectrum technology
ActiveCN119470321AHigh precisionhigh sensitivityMaterial analysis by optical meansEngineeringLaser light
The invention discloses a calibration-free gas sensing chip based on an infrared absorption spectrum technology. The calibration-free gas sensing chip comprises an on-chip laser light source, a transmission waveguide, an on-chip optical switch, a gas sensing waveguide array and an on-chip optical detector, the on-chip laser light source is arranged at the light input end of the transmission waveguide; the on-chip optical switch is arranged between the transmission waveguide and the gas sensing waveguide array; the gas sensing waveguide array is composed of a series of waveguides with different structural parameters, and light in the waveguides is in contact with environment gas through an evanescent field; and the on-chip optical detector is arranged at the light output end of the gas sensing waveguide array and is used for receiving the optical signal, converting the optical signal into an electric signal, inversely calculating the gas concentration through the electric signal and regulating and controlling the switching condition of the on-chip optical switch. The gas sensing chip has the gas concentration measurement advantages of high precision, self-calibration and the like, and lays a foundation for realizing the application of a miniaturized gas sensor.
Owner:TIANJIN UNIV
Method and system for rapidly determining nicotine content in cigarette oil using near infrared spectroscopy
The present invention relates to the field of infrared light analysis technology, and in particular to a method and system for rapidly determining the nicotine content in a cigarette oil using near infrared spectroscopy. The method obtains characteristic correlation coefficients between wavelength and component based on the difference in the degree of abnormality between the spectral data of the cigarette oil sample and the content sequence, and the degree of correlation between the wavelength in the spectral data and the component in the cigarette oil sample; determines the correlation coefficient between the wavelength and nicotine based on the relative size of the characteristic correlation coefficients between the wavelength and nicotine and the remaining components, and selects a characteristic wavelength based on the projection relationship between different wavelengths; determines a nicotine content prediction model based on the response value of the characteristic wavelength in the spectral data of the cigarette oil sample and the nicotine content, and uses the model to determine the nicotine content in the cigarette oil to be tested. The present invention considers the correlation between wavelength and nicotine in the process of selecting the characteristic wavelength, improves the expression effect of the characteristic wavelength on nicotine, and increases the accuracy of determining the nicotine content in the cigarette oil.
Owner:SHENZHEN CIGREAT TECH CO LTD
Channel switching method and device, electronic equipment and storage medium
PendingCN119603731Aavoid accuracyavoid efficiencyWireless communicationTelecommunicationsWireless network
The invention relates to a channel switching method and device, electronic equipment and a storage medium, and the method comprises the steps: determining channel information corresponding to a plurality of channels in a network environment around target equipment when the target equipment works in a first channel; for each channel, determining a first interference degree corresponding to the channel according to the channel information corresponding to the channel, the first interference degree representing the interference degree of the channel to the wireless network of the target device; determining a second channel from the plurality of channels according to the first interference degrees corresponding to the plurality of channels, the second channel being used for channel switching of the target device; and switching the target equipment from the first channel to the second channel to work. According to the method and the device, the problems of inaccurate channel switching and low efficiency caused by manual switching of the second channel are avoided, and the accuracy and the efficiency of channel switching are improved.
Owner:SHENZHEN SKYWORTH DISPLAY TECH CO LTD
A model training method, cognitive impairment prediction method and device
The application provides a model training method and device and a cognitive dysfunction prediction method, belongs to the technical field of deep learning, and can construct a tear index vector through a patient tear sample and a cognitive impairment grade label; a multi-level graph neural network model is used for predicting a CDR index; the total loss of the model is calculated, the parameters of the multi-level graph neural network model are adjusted, a trained target cognitive dysfunction grade prediction model and a marker importance matrix are obtained; and finally, the cognitive dysfunction of a patient can be predicted through the target cognitive dysfunction grade prediction model, the problem of poor accuracy and stability caused by subjective judgment of doctors is avoided, and the accuracy of cognitive dysfunction grade prediction is improved.
Owner:CHINESE PEOPLES LIBERATION ARMY ARMY 83RD GRP MILITARY HOSPITAL
Plywood forming treatment equipment
ActiveCN222521573UPrecise position controlstable positionPlywood pressesVeneer pressesHydraulic cylinderHydraulic pump
The utility model relates to the technical field of plywood processing, and discloses plywood forming processing equipment which comprises an equipment frame, a top plate, a driving motor and a hot pressing plate, a rail mounting plate is fixedly connected to the lower end of the inner side face of the equipment frame, a mounting bottom plate is fixedly connected to the rail mounting plate, and a moving device is arranged on the mounting bottom plate; a clamping device is arranged on the moving device, the moving device is composed of a transverse moving structure and a longitudinal moving structure and used for driving the clamping device to move transversely or longitudinally, and the transverse moving structure comprises a connecting block, a pressing table, a hydraulic cylinder and a hydraulic pump. The accurate relative position between the plywood and the hot pressing plate in the hot pressing process can be ensured, and the problem of uneven pressing or inaccurate forming caused by position deviation is avoided.
Owner:HUAIYANG COUNTY YONGHUI WOOD IND CO LTD