Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

306 results about "Life detection" patented technology

Method and system for monitoring health state and estimating service life of battery of electric vehicle

The invention provides an electric vehicle battery health state monitoring and service life estimation method and system, and the method comprises the steps: S1, obtaining a real-time data flow of a battery during the operation of a vehicle, extracting the original records of charging and discharging depth, temperature change, internal resistance parameters and capacity data from the real-time data flow, a dynamic monitoring sample is calculated through voltage, current and temperature values collected by a sensor; s3, calculating a capacity attenuation rule through the time sequence feature set, analyzing the decrease amplitude of the capacity after each charge-discharge cycle by adopting an exponential attenuation model, obtaining a long-term operation trend from historical data, and obtaining a dynamic curve of capacity attenuation; and S8, if the confidence interval of the final estimation probability distribution is greater than a preset threshold value, recollecting data with higher frequency for the dynamic monitoring sample, and performing iterative optimization on the life estimation model through the updated sample to obtain an adjusted life detection result.
Owner:GUANGDONG VIP AUTO E-COMMERCE CO LTD

Deep learning-based wounded rescue life detection and positioning method

The invention discloses a wounded rescue life detection and positioning method based on deep learning. The method comprises the steps that S1, multi-view RGB-D images, laser radar point clouds, millimeter wave vital sign radar data and infrared thermal image data are collected and subjected to time synchronization; s2, outputting a pixel-level semantic mask; s3, generating a semantic point cloud of the wounded; s4, forming a metric-semantic double-map data set; s5, generating vital sign scores and writing the vital sign scores into a metric-semantic double-map data set; s6, updating wounded dynamic anchor point attributes in the measurement-semantic double-map data set; and S7, based on the updated metric-semantic double-map data set, calculating the three-dimensional coordinate and rescue priority sequence of each wounded dynamic anchor point, and generating an obstacle avoidance optimized navigation path for avoiding the risk semantic region. The rescue efficiency and safety are effectively improved.
Owner:THE FIRST MEDICAL CENT CHINESE PLA GENERAL HOSPITAL

Full-aviation life intelligent detection and emergency rescue decision-making method and system

The invention discloses a full-aviation life intelligent detection and emergency rescue decision-making method and system. The method comprises the following steps: dividing emergency rescue scene gridding partitions; identifying the disaster degree and the number of affected people; combining an identification result with the gridding partition map to form a red, yellow, blue and green post-disaster gridding partition map; a full-aviation transient electromagnetic method life detector, an optical personnel detection device and a microwave radar life detection device are sequentially adopted to carry out step-by-step detection on the potential affected area, and a final replacement result of red, yellow, blue and green gridding target marking is formed; determining the priority level of ground rescue entering search and rescue according to the gridding partition map and the final replacement result; searching and inputting rescue result information of ground rescue entering search and rescue, and forming box counting statistics of grid information; a rescue decision suggestion is automatically generated according to a box counting statistical result, and efficient cooperation with a ground rescue team is formed; the method can effectively overcome the limitation of a single detection method in complex terrains and extreme environments.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +2

Multi-modal data fusion human body target identification method based on automatic control

The invention relates to the technical field of target identification based on multi-modal data fusion, and aims to solve the problems that an existing life detection system is difficult to effectively distinguish spatial distribution of a human body target and a hot pseudo target and cannot realize real-time synchronous analysis of multi-source heterogeneous data, so that the target positioning reliability in an extreme environment is seriously restricted. The invention provides a multi-modal data fusion human body target recognition method based on automatic control, and the method comprises the steps: constructing a feature complementation and interference suppression model based on a deep neural network through fusing the cross-modal data of infrared thermal imaging and visible light imaging, and employing a multi-scale anti-interference network based on wavelet graph convolution and an attention mechanism to recognize a human body target. The environment noise broadband interference is suppressed through the time-frequency localization characteristic, high-robustness recognition of a human body target in severe environments such as dense smoke shielding and thermal radiation interference is achieved, and accurate distinguishing of the human body and a thermal pseudo target in a complex fire scene environment is achieved.
Owner:山西科技学院

Petroleum pipeline service life prediction system based on 3D technology

The invention discloses a petroleum pipeline service life prediction system based on a 3D technology, and relates to the technical field of pipeline service life detection, and the system comprises a contour reconstruction module S11 which is used for obtaining the surface three-dimensional point cloud image data of a petroleum pipeline housing in an actual operation environment, and carrying out the surface contour reconstruction processing based on the three-dimensional point cloud image data, extracting space geometric structure data containing a local deformation defect area; the force-heat coupling analysis module S12 is used for constructing a finite element analysis grid according to the space geometric structure data and loading operation condition data into corresponding grid nodes to generate a force-heat coupling stress field, and the operation condition data comprises a periodic internal working pressure value, along-line temperature field data and an axial disturbance stress tensor; the feature extraction module S13 is used for calculating an equivalent stress distribution value of a defect area node based on a force-heat coupling stress field; according to the invention, accurate quantification of fatigue damage evolution of the defect area is realized.
Owner:NANTONG CHENGDA METAL EQUIP MFG CO LTD

Temperature control water nozzle service life testing machine

The utility model discloses a temperature control water nozzle service life testing machine, and relates to the technical field of temperature control water nozzle service life detection. The temperature control water nozzle service life testing machine comprises a testing stand and a constant temperature water nozzle body, a fixing frame is fixed to the rear side of the top of the testing stand, a water supply pipe is embedded in the fixing frame, a water outlet pipe is arranged on the front side of the water supply pipe, a threaded sleeve is rotationally connected to the front end of the water outlet pipe and is in threaded fit with the constant temperature water nozzle body, and a hose is connected between the water supply pipe and the water outlet pipe. A screw rod is obliquely arranged on the inner side of the fixing frame, a movable block is arranged on the screw rod in a threaded mode, an elastic assembly is connected to the bottom of the movable block, a U-shaped frame is connected to the lower end of the elastic assembly, a pressing wheel is rotationally installed on the inner side of the U-shaped frame through a rotating shaft, and the pressing wheel is matched with a hose. By combining the elastic effect of the elastic assembly, the pressing wheel extrudes the hose, the size of the drift diameter of the hose is changed, the purpose of adjusting the water flow speed is achieved, the structure is simple, and use is convenient.
Owner:ANHUI INST OF PROD QUALITY SUPERVISION & INSPECTION

Capacitor service life detection method, device, equipment and medium

The invention relates to the technical field of capacitor life detection. The capacitor service life detection method comprises the steps of obtaining electrical performance response information of a capacitor under a multi-excitation condition, constructing a dynamic response behavior path of the capacitor in a state space based on the electrical performance response information, obtaining an evolution behavior sequence, and calculating the service life of the capacitor according to the evolution behavior sequence. And matching the evolution behavior sequence with the aging behavior path in the aging trajectory library, identifying a corresponding degradation trend type, obtaining current detection condition information, inputting the degradation trend type into a life evaluation model, and performing analysis in combination with the current detection condition information to obtain a life evaluation result. The method has the effect of improving the accuracy of service life evaluation of the capacitor.
Owner:FUZHIQING ELECTRONICS (SHENZHEN) CO LTD

New energy charging pile charging gun service life detection device

The invention discloses a device for detecting the service life of a charging gun of a new energy charging pile. The device comprises a base, a charging interface and the charging gun, the device further comprises a plugging service life detection assembly, the plugging service life detection assembly comprises a lantern ring, the charging interface is fixedly arranged at the top end of one side of the base in a penetrating mode, the charging gun is arranged on the other side of the top end of the top side, the lantern ring is fixedly arranged on the peripheral side of the charging gun in a sleeving mode, and two first piston rods are oppositely arranged on the peripheral side of the charging interface. When the improved charging gun service life detection device is used, cooling processing of the head end of the charging gun and the charging interface can be synchronously completed in the process of completing connection of the charging gun and the charging interface so as to simulate that the charging gun and the charging interface can be reused after being charged for a long time after completing single time; therefore, the influence of an electric connection structure in the charging gun and the flashlight interface on the detection effect is avoided, and the plugging service life detection result of the charging gun is more accurate.
Owner:GANZHOU ANRONG NEW ENERGY TECHNOLOGY DEVELOPMENT CO LTD

Method and device for detecting service life of button switch and medium

The invention discloses a button switch service life detection method, a detection device and a medium, button use parameters and physical response signals are collected in real time, instantaneous pressing force and accumulated fatigue damage amount are separated by adopting a signal decoupling technology, and a composite damage index is calculated based on a nonlinear rule. And the life prediction module dynamically selects an exponential decay model or a power law decay model in combination with the total damage amount, and outputs a residual life evaluation result. A calibration unit is arranged in the device, standard pressure is periodically applied, response signals are collected, the model sensitivity coefficient and fatigue parameters are dynamically adjusted through a recursive optimization algorithm, and long-term stability of prediction precision is guaranteed. According to the method, full-process closed-loop control from data acquisition, damage feature extraction to intelligent prediction is realized, the accuracy and real-time performance of button service life evaluation are remarkably improved, and the equipment shutdown risk and maintenance cost caused by button failure are effectively reduced.
Owner:红波按钮制造有限公司

Fuel cell performance evaluation method, system, equipment and medium

The invention belongs to the technical field of battery detection, and particularly discloses a fuel cell performance evaluation method, system and device and a medium, and the method comprises the steps: collecting the multi-source feature data of a to-be-detected fuel cell in real time; carrying out preprocessing on the multi-source feature data; inputting the preprocessed multi-source characteristic data into an electrochemical-thermodynamic coupling model, and calculating to obtain an activation polarization voltage, an ohmic loss voltage and a concentration polarization voltage; and inputting the multi-modal input features into a pre-trained fuel cell performance health state evaluation model to evaluate the health state index and the remaining service life of the fuel cell to be tested. The accuracy of fuel cell health state and service life detection can be improved.
Owner:SOUTHWEST PETROLEUM UNIV

Filter life detection via dynamic pressure measurement

A sensor coupled to a computer can sense a pressure of a buffer tank. A computer can determine a start of dispensing a beverage from a beverage dispenser. The computer can determine that an elapsed time from the start of dispensing the beverage reaches a predefined duration threshold. The computer can measure a particular pressure of the buffer tank when determining that the elapsed time reaches the predefined duration threshold. The computer can determine that the particular pressure falls below a predefined pressure threshold. The computer can generate an order to replace a water filter of the beverage dispense in response to the particular pressure at the elapsed time falling below the predefined pressure threshold.
Owner:HYDRATION LABS INC

Vehicle windscreen wiper service life detection method and device, vehicle and program product

The invention discloses a vehicle windscreen wiper service life detection method and device, a vehicle and a program product, and the method comprises the steps: building a residual life prediction model of a vehicle windscreen wiper through an end-to-end deep neural network model, and enabling the model to take the state data of a windscreen wiper rubber strip and the parameter characteristics of the environment where the vehicle is located as the input; and outputting the predicted residual life of the windscreen wiper rubber strip. The input of the model comprises the multi-mode state data, obtained in the current detection period, of the windscreen wiper rubber strip of the vehicle and the parameter characteristics of the environment where the windscreen wiper rubber strip is located after the windscreen wiper rubber strip is replaced last time. When the vehicle is in different external environments, the aging speeds of the windscreen wiper rubber strip are different, the parameter characteristics of the environment where the vehicle is located serve as the input parameters of the model, and the model can be guided to dynamically predict the remaining life of the windscreen wiper rubber strip according to the parameter characteristics of the environment where the vehicle is located. Therefore, the accuracy of predicting the residual life of the windscreen wiper rubber strip is further improved.
Owner:IFLYTEK CO LTD

Intelligent circuit breaker electrical endurance detection method and system based on data analysis

The invention relates to the technical field of electrical equipment state monitoring, in particular to an intelligent circuit breaker electrical life detection method and system based on data analysis. The method comprises the following steps: synchronously acquiring opening coil voltage and current sequences, a main loop current sequence and environment temperature data when a circuit breaker acts, extracting actually measured action time based on the coil data, and calculating a mechanical health degree factor by combining the environment temperature and the actually measured action time; after decoupling correction is carried out on an electrodynamic force interference factor derived by a peak current of a main loop, a mechanism wear state index is obtained; a nonlinear damage model containing basic electric heat loss and mechanical degradation acceleration factors is constructed, a single-time electric life loss value is calculated, historical loss values are accumulated, a dynamic threshold value is combined to realize full-life-cycle prediction, and evaluation interference of environmental factors and large-current electrodynamic force is eliminated through deep data analysis. The nonlinear acceleration effect of mechanism hysteresis on contact ablation is quantified, and the detection precision is remarkably improved.
Owner:SUZHOU MEILANRILAN ELECTRICAL CO LTD

Battery life detection method and system, intelligent terminal and storage medium

The invention relates to the technical field of battery detection, in particular to a battery life detection method and system, an intelligent terminal and a storage medium, and the method comprises the steps: collecting operation data in real time through a multi-source sensor array disposed in a charging pile; the multi-source sensor array comprises a multi-point temperature sensor, a current waveform sensor and a displacement sensor; performing dynamic feature extraction on the collected operation data to generate a dynamic feature set; inputting the dynamic feature set into a multi-parameter coupling health analysis model to generate a whole machine health state; the health state of the whole machine is recognized, and when it is recognized that the health state is attenuated, a maintenance instruction is output; the maintenance instruction includes a faulty component identifier and a remaining life predictor. The method has the effects of dynamically and quantitatively sensing the performance state of the key internal components of the charging pile, positioning the fault component and predicting the residual service life of the charging pile.
Owner:ZHEJIANG MAILANG ELECTRIC

High-speed rail axle box bearing full-life-cycle test bench and test method

The invention relates to the technical field of fault diagnosis and bearing life detection, in particular to a high-speed rail axle box bearing life cycle test bench and a test method.The test bench comprises a test bench body, a test head, a driving system, a loading system, a temperature control system, an electrical control system, a computer monitoring system and a data acquisition system; the speed spectrum and the load spectrum can be preset through program control, complex and strong load conditions and variable environment temperatures of a high-speed train can be comprehensively simulated, full-life-cycle tests can be carried out on high-speed rail axle box bearings of various models under high-speed, heavy-load and high-frequency vibration conditions, and the device has the advantages of being easy to operate, safe, reliable and efficient in testing and has a wide application prospect. The problems that in the prior art, the high-speed rail axle box bearing operation environment simulation is incomplete, and the service life evaluation credibility is low can be effectively solved.
Owner:HUNAN UNIV +1

Robot joint module service life detection device

The invention discloses a robot joint module service life detection device, and relates to the technical field of joint module detection, the robot joint module service life detection device comprises a detection table, the top end of the detection table is provided with a connecting assembly, and the output end of the connecting assembly is provided with a torque applying and detecting assembly used for carrying out torque loading and detection on a joint module; a radial force applying and detecting assembly is arranged on one side of the outer wall of the connecting assembly and used for applying and detecting radial force to the joint module; the connecting assembly comprises a joint module body and a welding fixing frame base of the joint module body, an output flange is fixedly installed at the output end of the joint module body, a connecting flange is fixedly installed at one end of the output flange, and a torque sensor is fixedly installed at the other end of the connecting flange. A pressure sensor is mounted on one side of the outer wall of the output flange; the variable load test is carried out on the radial force and the rotating torque, the constant load can be realized, the variable load test can be realized at the same time, compared with the traditional constant load test, the stress state of the joint module in the actual work can be reflected more truly, and the service life detection result has higher reference value.
Owner:CHONGQING MAP AUTOMATION MACHINERY CO LTD

Sensitive component service life detection method and system

The invention provides a sensitive component service life detection method and system, and relates to the field of sensitive component service life detection, and the method comprises the steps: recording the factory UTC time of a sensitive component and the initial performance data of the sensitive component during factory leaving; based on a preset timed monitoring period, obtaining current UTC time and average performance data of the sensitive component in the timed monitoring period when each timed monitoring period is ended; adjusting weight coefficients corresponding to different timing monitoring periods according to the environment data and the load parameters of the sensitive components; performing weighted summation on the average performance data according to the weight coefficient to obtain a total integral value; when it is detected that the total integral value is larger than or equal to a preset integral threshold value, or the variable value of the average performance data exceeds a preset amplitude threshold value, alarm information that the service life reaches the limit is triggered. By implementing the method, the performance change of the sensitive component under different environments and load conditions can be dynamically responded, so that the life end point of the sensitive component can be predicted more accurately.
Owner:CHENLING SEMICONDUCTOR (JIAXING) CO LTD

High frequency resistant nuisance tripping GFCI and with self-test and end of life (STEOL) circuits

A high-frequency resistant ground fault circuit interrupter (HF-GFCI) with self-test and end-of-life detection is disclosed. The invention incorporates a noise-resistant fault detection circuit, an auto-test module, and an end-of-life shutdown mechanism to ensure reliable protection. The device minimizes false tripping due to high-frequency noise and enhances safety through continuous self-monitoring. Experimental validation confirms improved immunity to leakage currents and transient voltage disturbances. The HF-GFCI also provides an LED circuit having dual functionality: an LED indicator circuit and neutral to ground detection on the load side of the HF-GFCI.
Owner:TOWER MFG CORP

Lithium battery residual life detection method and device, electronic equipment and storage medium

The invention provides a lithium battery residual life detection method and apparatus, an electronic device and a storage medium. The method comprises the steps of performing correlation analysis on a voltage battery capacity curve of each charging interval and a battery health state to obtain a correlation coefficient; when the absolute value of the correlation coefficient is greater than a preset value, constructing a battery voltage characteristic sample set through the battery voltage and the battery capacity of the charging interval, and taking impedance spectrum data corresponding to each charging interval in the battery voltage capacity characteristic sample set as an impedance spectrum characteristic sample set; inputting the battery voltage characteristic sample set into a deep learning model to obtain a predicted impedance spectrum, and training the deep learning model based on the predicted impedance spectrum and the impedance spectrum characteristic sample set; and inputting the charging data of a to-be-predicted lithium battery into the trained deep learning model to obtain a target predicted impedance spectrum, and determining the predicted residual life of the lithium battery based on the equivalent circuit model and the target predicted impedance spectrum. The detection efficiency is improved by detecting the battery voltage characteristics of the lithium battery.
Owner:WUHAN UNIV OF TECH

Mine rescue multivariate information life detection system and method

The invention relates to the technical field of mine rescue detection, and discloses a mine rescue multivariate information life detection system and method.The mine rescue multivariate information life detection method comprises the steps that a heterogeneous sensor network is deployed, a belief propagation algorithm is applied to construct a self-organizing network, and dynamic topological optimization is achieved; an environment adaptability calibration system is constructed, and dynamic calibration of the sensor in complex environment changes is achieved; the sensor performance is quantified through a functional space model, degradation evaluation is carried out, and intelligent redistribution of sensing tasks is achieved; constructing a cooperative detection framework by using a belief propagation algorithm, and fusing multi-sensor data through a distributed decision algorithm; performing multi-dimensional feature extraction and analysis on the life signal, performing reliability evaluation on a result, and outputting a high-reliability detection result; according to the invention, the technical problems of sensor performance drift, function degradation and insufficient topological structure adaptability of a traditional mine rescue detection system in a complex environment are solved.
Owner:SHANXI CHINA COAL HUAJIN ENERGY CO LTD

Thermal fatigue life detection equipment for die-casting die

The invention discloses a die-casting die thermal fatigue life detection device, and relates to the technical field of die-casting die detection, the die-casting die thermal fatigue life detection device comprises a detection machine body and a control platform, and the top of the detection machine body is provided with a material thermal fatigue detection assembly and a mechanical load mechanism. When the device is used, the electric push rod pushes the heat insulation sleeve to penetrate through the penetrating hole and continue to move, and the movable turning cover is jacked upwards. Under the combination of the vacuum cavity, the honeycomb-shaped porous heat insulation plate and the metal foil reflecting screen, the heat insulation sleeve forms a triple barrier of reflection, vacuum and porous heat insulation, heat transfer is blocked, and it is guaranteed that cold air is not affected by heat of an air cooling opening when blown. When the material thermal fatigue detection assembly works, the cold air pipe and the heat insulation sleeve are located outside the detection box, the heat absorption temperature of the cold air pipe is prevented from increasing in the heating process, and the mold thermal fatigue detection precision and efficiency can be improved.
Owner:ANHUI SANCHUANG PRECISION MOLD CO LTD

Perfume system service life detection method based on working condition parameters

The invention provides a fragrance system service life detection method based on working condition parameters. The fragrance system service life detection method comprises the steps of obtaining fan rotating speed parameters, environment temperature parameters and working time delta t under the working condition when a fragrance system actually works; based on the fan rotating speed parameter and the environment temperature parameter, determining a corresponding preset fragrance rotating speed consumption coefficient Kr and a preset fragrance environment temperature consumption coefficient Kt; according to the working time delta t, the fragrance rotating speed consumption coefficient Kr and the fragrance environment temperature consumption coefficient Kt, the equivalent life consumption sub-time delta Tequiv relative to the fragrance system under the reference working condition is calculated; accumulating the sum of the equivalent life consumption sub-time delta Tequiv of the fragrance system under a plurality of working conditions, and generating the total equivalent life consumption time Ttotalquiv of the fragrance system; and when the total equivalent life consumption time Ttotalquiv of the fragrance system exceeds a preset life threshold value Tthreshold of the fragrance system, judging that the life of the fragrance is ended. According to the method, the fan rotating speed and the environment temperature which influence the fragrance consumption rate are calculated, so that the service life detection is more accurate.
Owner:HANLIN AUTOMOTIVE TECH (JIANGSU) CO LTD

Foot type robot walking control method, device and equipment and medium

The invention relates to the technical field of robots, and provides a walking control method, device and equipment for a foot type robot and a medium. Multi-source ground sensing information of the advancing direction of the foot type robot is obtained; determining the current ground type of the advancing direction according to the multi-source ground sensing information; generating a target gait parameter matched with the current ground type through a gait parameter mapping model corresponding to the current ground type; the target gait parameters are converted into joint control instructions, and joints of the foot type robot are driven to move according to the joint control instructions. The walking control scheme of the foot-type robot is suitable for complex terrains such as mountainous regions, ruins, gullies and muddy zones, the adaptive capacity and walking stability of the foot-type robot in the different complex terrains can be improved, and the foot-type robot can be better applied to on-site investigation and loss assessment of insurance claim settlement in the field of financial science and technology; and life detection, rescue and other tasks in the field of medical science and technology.
Owner:PING AN TECH (SHENZHEN) CO LTD

Drilling rescue ultra wide band radar life detection imaging system and method

The invention discloses a drilling rescue ultra wide band radar life detection imaging system and method. The system comprises a life information detection unit, a scroll wireless communication unit and a life information display unit. The life information detection unit is used for collecting life information inside and around a drill hole, the reel wireless communication unit is responsible for lowering and lifting the life information detection unit and transmitting data obtained by the life information detection unit to the life information display unit, and the life information display unit transmits the received data to the control unit. Information is projected into the air by using an aerial imaging technology, a clear three-dimensional life information image is displayed in the air, a rescue worker controls the detection direction of the life information detection unit by rotating eyeballs, and life information detection in different directions is realized. According to the method, the multi-dimensional information of the interior of the drill hole and the surrounding environment of the drill hole can be rapidly and comprehensively obtained, real-time, datamation and visualization of life information are achieved, a reliable auxiliary decision-making basis is provided for drill hole rescue, and the rescue efficiency and accuracy are improved.
Owner:XIAN UNIV OF SCI & TECH +1

Battery life detection under dynamic wireless charging and related equipment

The invention provides battery life detection under dynamic wireless charging and related equipment, and relates to the field of electric digital data processing. According to the method, characteristic curves of similar batteries of a target battery in different stages are obtained, the operation process is divided into a plurality of time slices, state classification is carried out, and state changes of the batteries under different working conditions can be captured. And determining a corresponding characteristic curve according to a classification result and extracting life influence data, so that the influence of each time slice on the life of the battery can be accurately reflected. And integrating the data of all time slices to form a life influence data set, and calculating the service life of the battery according to the life influence data set, thereby realizing the detection of the service life of the battery under the dynamic wireless charging system. According to the method, the complex working condition of dynamic wireless charging is decomposed into a plurality of simple working conditions, and the influence of each simple working condition is calculated, so that the accuracy of battery life detection under the dynamic wireless charging condition is improved.
Owner:HUIZHOU FUJI ENERGY TECH CO LTD

System for detecting service life of machine tool cutter

The invention discloses a machine tool cutter service life detection system, which belongs to the technical field of machine tool machining cutter detection, and comprises a magnetic sensor for generating a pulse signal when a tool rest completes a workpiece machining cycle; the signal processing module receives the pulse signal and executes a counting algorithm; the tool wear detection module comprises an optical sensor group for acquiring cutting surface images, a vibration sensor for acquiring vibration signals of a tool rest main shaft, a current sensor for acquiring current fluctuation of a tool feeding motor and an acoustic emission sensor for acquiring acoustic emission energy of a cutting frequency band; the analysis early warning module is used for training a dynamic threshold model based on the feature vector and outputting a wear level; the cutter life prediction module predicts the remaining service life of the cutter; and the execution module outputs a machine tool machining signal according to the tool wear grade and the remaining service life of the tool. According to the invention, various different types of sensors are integrated at the same time for comprehensive wear detection; the problems of single monitoring dimension and low precision in the prior art are solved.
Owner:XIAN QINGAN POULTRY EQUIP CO LTD

Equipment and method for detecting fatigue life of corrugated pipe

The invention relates to the technical field of corrugated pipe detection, and discloses corrugated pipe fatigue life detection equipment and a corrugated pipe fatigue life detection method, and the corrugated pipe fatigue life detection method comprises the following steps: building an acoustic-electric topological coupling detection unit through an acoustic metamaterial electromagnetic impedance topological coupling model; constructing a sensor network with topology protection boundary characteristics; obtaining a topological characteristic data set of the state of the corrugated pipe through a topological protection boundary sensing equation; generating a spatial distribution mapping graph of corrugated pipe damage; inputting the topological characteristic data set and the spatial distribution mapping graph into a topological characteristic spectrum pattern recognition algorithm, and outputting the type and severity of the fatigue damage of the corrugated pipe; according to the invention, a series of technical problems in corrugated pipe fatigue damage detection are innovatively solved through the deep coupling acoustic metamaterial and electromagnetic impedance technology and introduction of a physical cellular automaton theory and a topology protection mechanism.
Owner:JIANGSU ZHIFEI CONSTR CO LTD

Method and system for detecting service life of filter element of water purifier

The invention discloses a water purifier filter element service life detection method and system, and relates to the technical field of intelligent household appliance sensor crossing, and the method comprises the steps: carrying out the voiceprint detection according to a water quality entropy change mark, and carrying out the adjustment according to a filter element reference voiceprint library, and obtaining a voiceprint detection parameter set; according to the voiceprint detection parameter set, water flow voiceprint signals are collected in real time, spectral analysis is carried out, and a real-time voiceprint spectrogram is generated; calculating a high-frequency attenuation index based on the real-time voiceprint spectrogram, recognizing a blockage level, performing graded early warning according to the blockage level, and generating a hardware control signal set; and calculating the residual life of the filter element based on the blockage level and the current information entropy value, and generating a filter element life detection report in combination with the hardware control signal set. According to the method, the response delay bottleneck of fixed period detection is broken through, misjudgment caused by individual difference of the filter elements is eliminated, and dynamic optimization of a detection strategy is realized.
Owner:SHENZHEN XINSHENG ELECTRIC APPLIANCE CO LTD

Life significance sense detection method and device

The invention relates to the technical field of artificial intelligence, and discloses a life significance sense detection method and device. The method comprises the following steps: constructing a knowledge graph based on multiple scientific literatures; obtaining text data for training; taking the knowledge graph as background knowledge of a large language model, and generating a knowledge description text corresponding to the text data through the large language model; generating a synthetic text based on the text data and the knowledge description text, and converting the synthetic text into a corresponding fusion vector; training a life significance sense detection model based on the fusion vector; and through the trained life significance sense detection model, detecting a fusion vector generated based on the social text. By adopting the method, the accuracy of life sense sense detection can be improved.
Owner:BEIJING NORMAL UNIVERSITY

A method and system for detecting the lifetime of a sensitive component

ActiveCN120252814BMachine learningComponent LoadAlarm message
The application provides a sensitive component life detection method and system, and relates to the field of sensitive component life detection.The method comprises the following steps: recording the factory UTC time of a sensitive component and initial performance data at the factory; based on a preset timing monitoring period, acquiring the current UTC time and average performance data of the sensitive component in the timing monitoring period at the end of each timing monitoring period; adjusting the weight coefficient corresponding to different timing monitoring periods according to environmental data and sensitive component load parameters; performing weighted summation on the average performance data according to the weight coefficient to obtain a total integral value; when it is detected that the total integral value is greater than or equal to a preset integral threshold value or the variable value of the average performance data exceeds a preset amplitude threshold value, triggering alarm information that the life has reached the limit. By implementing the method, the performance change of the sensitive component under different environmental and load conditions can be dynamically responded, and the life end of the sensitive component can be more accurately predicted.
Owner:CHENLING SEMICONDUCTOR (JIAXING) CO LTD