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8652results about How to "Accurate judgment" patented technology
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Controller for hybrid vehicle
InactiveUS6018694AGreat torque balanceStable vehicle behaviorWindingsPlural diverse prime-mover propulsion mountingElectricityControl system
A gas-sparing vehicle is achieved by a control system for a hybrid vehicle equipped at least with: a hybrid engine which includes at least a first rotary electric unit for deciding the rpm of the engine and a second rotary electric unit for deciding the driving force of the vehicle and which has power converting means connected to the output shaft of the engine; and electricity storing means. In one embodiment, a hybrid controller 16 controls the drive of a first rotary electric unit 2000 according to a startup torque command value which is decided based on the rpm of an engine at the time of engine startup and which decreases as the rpm increases; it also determines that the complete explosion in an engine 1 has occurred when the startup torque command value falls below a predetermined complete explosion judgment value.
Owner:DENSO CORP
Vehicle environment monitoring device
ActiveUS20050063565A1Improve resource utilizationAccurate judgmentImage enhancementImage analysisHeight differenceState of the Environment
A vehicle environment monitoring device identifies objects from an image taken by an infrared camera. Object extraction from images is performed in accordance with the state of the environment as determined by measurements extracted from the images as follows: N1 binarized objects are extracted from a single frame. Height of a grayscale objects corresponding to one of the binarized objects are calculated. If a ratio of the number of binarized objects C, where the absolute value of the height difference is less than the predetermined value ΔH, to the total number N1 of binarized objects, is greater than a predetermined value X1, the image frame is determined to be rainfall-affected. If the ratio is less than the predetermined value X1, the image frame is determined to be a normal frame. A warning is provided if it is determined that the object is a pedestrian and if a collision is likely.
Owner:ARRIVER SOFTWARE AB
Particle beam irradiation apparatus and particle beam irradiation method
ActiveUS7709818B2Guaranteed accuracyAccurate judgmentThermometer detailsBeam/ray focussing/reflecting arrangementsTransport systemParticle beam
To ensure irradiation accuracy and safety, even when an irradiation device employing a different irradiation method is used, disclosed is herein a charged particle beam irradiation apparatus that irradiates an irradiation target with charged particle beams includes:a charged particle beam generator for generating the charged particle beams; a passive scattering irradiation device and a scanning irradiation device, both for irradiating the irradiation target with the charged particle beams; a beam transport system for transporting the charged particles beam extracted from the charged particle beam generator, to selected one of the two irradiation devices; and a central controller that modifies operating parameters on the charged particle beam generator, according to the irradiation method adopted for the selected irradiation device.
Owner:HITACHI LTD
Human-simulated external skeleton robot assisting lower limbs
ActiveCN103610568ARealize the safety requirements of mechanical limitConvenient and accurate adjustment of telescopic lengthChiropractic devicesWalking aidsThighExoskeleton robot
The invention relates to an external skeleton robot, in particular to a human-simulated external skeleton robot assisting the lower limbs. The human-simulated external skeleton robot assisting the lower limbs aims to solve the problems that an existing external skeleton robot is low in coupling degree of motion space and poor in wearing comfort, reliability and adaptation, and power needed by a motor is large. The human-simulated external skeleton robot assisting the lower limbs comprises an upper body back part, a left leg and a right leg. The left leg and the right leg respectively comprise a hip drive system, a knee drive system and a foot wearing system. A rear side connection board of the waist is in rotating connection with a load installation board. Each hip joint supporting board is provided with a first motor and a first reducer, wherein the first motor is provided with an encoder, and the output end of the first motor provided with the encoder is connected with the input end of the first reducer. Each hip joint connecting board can rotate in the vertical plane. Each thigh stretching board is in detachable connection with the corresponding hip joint connecting board. The output end of a main drive mechanism is connected with each crus connecting board. The lower surfaces of elastic boards are bonded with the upper surfaces of the rubber soles of the feet. The human-simulated external skeleton robot assisting the lower limbs can assist in walking.
Owner:HARBIN INST OF TECH
Wrist-type vital sign monitoring device and monitoring method thereof
ActiveCN103417202AImprove convenienceTo achieve the practical purpose of real-time monitoringCatheterDiagnostic recording/measuringComputer moduleEngineering
The invention discloses a wrist-type vital sign monitoring device and a monitoring method thereof. A central processing unit, a human-computer interaction module, a communication module, a positioning module, a signal processing module and a vital sign collecting detector set are integrated in a wrist-type watch, and the wrist-type watch is worn on a wrist through a watchband. The vital sign collecting detector set comprises a plurality of physiological index sensors, and each physiological index sensor is arranged in the wrist-type watch in an integrated or detachably replaced mode. The portable device which has a positioning function and can monitor the physiological signal monitoring value of a user in real time is contrasted with pre-stored normal index parameters aiming at the user, and when a disease sign is found, the device sends out a prompt for the user and meanwhile sends the current related physiological signal monitoring values of the user, the physiological signal monitoring values in the recent period and the current geographical location information of the user to a service center, so that the precious time is earned for the user obtaining the timely salvation.
Owner:赵蕴博
Method and device for head tracking
InactiveUS20050256675A1Accurate judgmentEasy accessInput/output for user-computer interactionTelevision system detailsClassical mechanicsDisplay device
When the three-dimensional direction the head faces is detected by three axes, that is, a yaw angle that is an angle turning around an erect axis erected on the horizontal surface of the head, and a pitch angle and a roll angle that are angles formed by the above erect axis and two axes perpendicular thereto, a gyro sensor 11 which detects the yaw angle from the integral value of the acceleration, a tilt sensor 12 which detects the inclination of a plane that intersects the direction of the erect axis at right angles, and calculation element 14 which calculates the pitch angle and the roll angle from the output of a tilt sensor are provided, so that the direction that the head faces can be detected with a simple detecting structure including the two sensors, in a head mounted display or the like.
Owner:SONY CORP
On-line negotiations with dynamic profiling
InactiveUS6886000B1Judge the customer more accuratelyEnhance the imagePayment architectureMarketingPersonal detailsE-commerce
An e-commerce mechanism tries to dynamically estimate or refine a profile of a buyer and hence change their negotiation strategy in a dynamic and an on-line manner. An e-commerce site can negotiate with a customer based on his or her profile. The e-commerce site may sell one or more types of items to various customers. These customers may be brokers, other intermediaries, businesses or consumers. Similarly, the e-commerce site may be a broker, an auctioneer, an intermediary, a seller, or even a manufacturer. In one specific case of this invention, the existing data on various customers' past purchases, buying behavior, demographics and other parameters is studied to arrive at attributes which are then used to segment customers into various profiles. The profiles depend not only on the demographic factors but also on factors like the season, the time of day, the geographical area and the cultural upbringing. When a new customer comes to the e-commerce site, the customer is assigned to a pre-specified profile in an on-line manner. The e-commerce site then negotiates with the customer according to the customer's present profile. As the customer negotiates, the customer's profile is dynamically updated to incorporate the customer's actions. Different profiles may yield different negotiation strategies and also different results, i.e., value, price, points, delivery dates, etc. Both the customer and the e-commerce site can negotiate on the basis of each other's dynamic profiles and come to a mutually agreed settlement.
Owner:IBM CORP
Method for preventing evacuation of plunger pump based on monitoring of output pressure
ActiveCN106438310AImprove protectionThe detection method is accuratePump testingPump controlData acquisitionEngineering
The invention relates to the technical field of monitoring of plunger pumps, in particular to a method for preventing evacuation of a plunger pump based on monitoring of the output pressure. The method relates to the plunger and an output pipeline, and is characterized in that a pressure data acquisition control device is arranged on the outlet pipeline; and a data processing method comprises the following steps that (1) the average value P0 of the output pressure is obtained, specifically, the output pressure setting tolerance delta P is set, the domain above a P0+delta P line is called a peak domain, and the domain below a P0-delta P line is called a valley domain; a peak domain counter A and a valley domain counter B are set correspondingly; the allowable difference value between the peak domain counter A and the valley domain counter B is the numerical value C; and an out-of-tolerance time counter D and an upper limit E are set; (2) pressure data Px is acquired; (3) abnormal data are removed; (4) the number of times of Px falling into the peak domain and the valley domain is calculated; and (5) whether the out-of-tolerance time D of the difference value between the peak domain counter A and the valley domain counter B exceeds a preset value E or not is judged, and if yes, an evacuation alarm is given out. Compared with a detection method in the prior art, the method is accurate and reliable, and false alarms are avoided.
Owner:JEREH OIL & GAS ENG
Swing analyzing apparatus
ActiveUS20120157241A1Simple configurationEasy to handleGymnastic exercisingTeaching apparatusAngular velocityPhysics
A swing analyzing apparatus includes at least an angular velocity sensor, an impact detection section, an angular velocity information calculation section, and an impact state judgment section. The impact detection section detects the timing of impact in a swing of a sporting good. The angular velocity information calculation section calculates at least one of the amount of change in angular velocity with respect to a predetermined axis in a predetermined period after the impact timing and the greatest value of the angular velocity based on data outputted form the angular velocity sensor. The impact state judgment section judges the state of impact based on the result calculated by the angular velocity information calculation section.
Owner:SEIKO EPSON CORP
Movement human abnormal behavior identification method based on template matching
InactiveCN101719216AGood effectThe effect is accurateCharacter and pattern recognitionVisual technologyAnomalous behavior
The invention relates to a movement human abnormal behavior identification method based on template matching, which mainly comprises the steps of: video image acquisition and behavior characteristic extraction. The movement human abnormal behavior identification method is a mode identification technology based on statistical learning of samples. The movement of a human is analyzed and comprehended by using a computer vision technology, the behavior identification is directly carried out based on geometric calculation of a movement region and recording and alarming are carried out; the Gaussian filtering denoising and the neighborhood denoising are combined for realizing the denoising, thereby improving the independent analysis property and the intelligent monitoring capacity of an intelligent monitoring system, achieving higher identification accuracy for abnormal behaviors, effectively removing the complex background and the noise of a vision acquired image, and improving the efficiency and the robustness of the detection algorithm. The invention has simple modeling, simple algorithm and accurate detection, can be widely applied to occasions of banks, museums and the like, and is also helpful to improve the safety monitoring level of public occasions.
Owner:XIDIAN UNIV
A method for preventing plunger pump from pumping out based on monitoring output pressure
ActiveCN106438310BImprove protectionThe detection method is accuratePump testingPump controlData acquisitionEngineering
Owner:JEREH OIL & GAS ENG
Method for detecting lane lines based on grayscale estimation and cascade Hough transform
InactiveCN101608924AAccurate Threshold SegmentationEfficient extractionInstruments for road network navigationImage analysisVanishing pointImage segmentation
The invention provides a method for detecting lane lines based on grayscale estimation and cascade Hough transform, belonging to the technical field of image processing, and relating to image segmentation, image line geometrical characteristics detection and intelligent vehicle navigation simultaneously, which is mainly applicable to an auxiliary safety drive system. The method comprises the following steps: carrying out grayscale estimation on sensitive areas of an original image I of the collected vehicle road conditions ahead; dividing the sensitive areas into a vehicle shadow region, a roadway non-mark region and a roadway mark region (including the area of the car body of the vehicles ahead); adopting a mathematical morphology method to obtain a boundary image from the roadway mark region in the areas divided by the grayscale estimation; then carrying out Hough transform on the obtained boundary image of the roadway mark region to extract line image characteristics therein; and finally realizing the detection of the lane lines by searching end points of roadway mark boundary. Compared with the congeneric method, the method in the invention has stronger stability and wider application occasions and the like.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA
Digital camera having subject judgment function
InactiveUS20050089218A1Reduce in quantityReduce loadTelevision system detailsImage analysisCorrelation coefficientStill camera
A subject judgment program is capable of reducing the calculation load on a computer functioning as a device for judging the subject in a subject image. In a controller of a digital still camera, when a CPU running the subject judgment program (stored in a flash memory) obtains image data from an A / D converter via a first interface circuit, the CPU generates two-dimensional distribution data of product-moment correlation coefficients for each of model image data stored in the flash memory by successively calculating the product-moment correlation coefficient between the model image data and each part of the obtained image data, identifies a piece of model image data corresponding to two-dimensional distribution data having the highest maximum value, and thereby identifies subject information which has been associated with the identified model image data.
Owner:RICOH IMAGING COMPANY
Multi-round automatic chat and conversation method and system based on deep learning
InactiveCN107193978AImprove user experienceAccurate judgmentCharacter and pattern recognitionSpecial data processing applicationsHuman–computer interactionData library
The invention discloses a multi-round automatic chat and conversation method and system based on deep learning. The method comprises the following steps that: on the basis of the current input processing result of a user, using a deep learning model to mine the current input intention of the user; according to the current input intention of the user, the chat theme of a previous round of conversation and the current input processing result of the user, using the deep learning model to judge whether the current input intention of the user is consistent with the chat theme of the previous round of conversation, updating entity information according to a judgment result, then, obtaining response contents according to the current input intention of the user from a preset response database, and sending the response contents to the user. The method has the beneficial effects that the contents and the context scene information of the current round of conversation and the previous round of conversation can be simultaneously considered when a chatting robot carries out continuous multi-round conversations with the user, more accurate contents can be responded to the user, and answering quality is improved.
Owner:WUHAN TIPDM INTELLIGENT TECH
Comprehensive measuring and controlling device of high voltage pole tower
InactiveCN101989767AReduce pollutionReduce power consumptionCircuit arrangementsIndication of weather conditions using multiple variablesGeneral Packet Radio ServiceSmart grid
The invention relates to a comprehensive measuring and controlling device of a high voltage pole tower, mainly comprising a power supply unit, an intelligent bird driving unit, a flashover and lightning stroke location detection unit, a pole tower inclination detection unit, a pole tower meteorological environment detection unit, a pole tower intrusion alarm unit, an transmission line icing parameter detection unit, a central controller, a wireless transceiving device and a thermostat, wherein the power supply unit comprises two parts which are a solar battery and a wind turbine, the wind turbine also fulfills the functions of wind speed and wind direction detection and is an important component part of the pole tower meteorological environment detection unit, the power supply unit stores collected electric quantity into a storage battery through a collection circuit and supplies the power to the device, and the wireless transceiving device sends information collected in situ to a distant monitor center through a GPRS (General Packet Radio Service) or a wireless local network. The invention can fulfill the functions of intelligent bird driving, flashover and lightning stroke location, pole tower inclination detection, meteorological environment detection, intrusion alarm, icing parameter detection and the like and has strong environment adaptability because the wind power and the solar power generation accord with the environment self-powered requirement, thereby enhancing the maintenance free performance of a system. The device is an important component part of an intelligent power grid, accords with the requirement of intelligent power grid establishment of a national power grid and has higher practical value and wide application prospect.
Owner:中电国科技术有限公司 +1
Relay welding detector and detecting method
InactiveUS20020070608A1Frequently performedReduce voltageAC motor controlElectric devicesVoltmeterEngineering
Frequency of judgment of welding of relays is increased to increase likelihood of early detection of welding. It is determined that a battery 22 is not being recharged or discharged when a vehicle speed V of an electric vehicle is approximately 0 and a brake pedal 54 is pressed, and a switching element of an inverter 24 is controlled to be switched to discharge electric charges which are stored in a capacitor 44. After discharging, relays 30, 32 are turned off, and voltages RV1, RV2 between the terminals of the relays 30, 32 are detected by voltmeters 40, 42 to judge whether either of the voltages RV1, RV2 has a threshold value RVref (approximate value 0) or less. When it is so determined, it is judged that the relays 30, 32 are welded, and an LED 70 is illuminated.
Owner:TOYOTA JIDOSHA KK
Vehicle surroundings monitoring apparatus
ActiveUS20050276447A1Easy to judgeAccurate judgmentImage enhancementImage analysisSpatial correlationLightness
A vehicle surroundings monitoring apparatus recognizes a pedestrian from existence of a leg, in the case in which a width in real space of a binarized object is suitable as a pedestrian's leg, the binarized object has longwise shape, the lower end position of the binarized object exists in the lower part (lower half) of a gray scale object region, and a serial luminance transition exists in the binarized object. The vehicle surroundings monitoring apparatus also recognizes a pedestrian from existence of an umbrella held up by the pedestrian, in the case in which an umbrella region with a low temperature exists above the binarized object, the width of the umbrella region is suitable as a pedestrian's umbrella, and, the spatial correlation between the centroid position of the umbrella region and the centroid position of the binarized object is suitable as a spatial relationship between a pedestrian and his / her umbrella.
Owner:ARRIVER SOFTWARE AB
Collision avoidance device
ActiveUS20100030426A1Accurate judgmentPreventing wasteful collision avoidance controlDigital data processing detailsAnti-collision systemsWhite lineSteering control
A collision avoidance ECU estimates a traveling locus based on an estimated curve radius of an own vehicle in a basic traveling locus estimating unit, and in a changed traveling locus estimating unit, obtains separation distances between an own vehicle and white lines based on the relative positional relationship between an own vehicle and the white lines, and estimates, as a changed traveling locus, a route along the white lines with the obtained separation distances maintained. In a collision judging unit, when auto-steering control and departure warning control are not performed, collision judgment is performed based on the basic traveling locus estimated in the basic traveling locus estimating unit, and when the auto-steering control and departure warning control are performed, the traveling locus is changed to the changed traveling locus estimated in the changed traveling locus estimating unit and collision judgment is performed.
Owner:TOYOTA JIDOSHA KK
Fatigue testing device of button switch
InactiveCN101750224AIncrease productivityEasy to useStructural/machines measurementPush switchTest fixture
The invention relates to a fatigue testing device of a button switch, comprising a worktable (1) and a bracket (2) fixed on the worktable (1). A holding device for placing the button switch to be tested is arranged on the worktable (1), a cylinder (9) is arranged above the holding device, and the lower end of a piston of the cylinder (9) is connected with a pressing pole (10) for pressing the key of the button switch to be tested. The testing device also comprises a control device which is connected with the cylinder (9), used for controlling the cylinder (9) and setting testing parameters. The fatigue testing device of the button switch has the advantages that the button switch is automatically pressed by utilizing the cylinder, wherein the pressing force and the pressing frequency are kept highly consistent, and the pressing force, the pressing time interval and the pressing times all can be adjusted and set, thereby the invention has the advantages of very convenient use, good testing effect and high efficiency.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD
Recognition method of on-line monitoring of power consumption of non-intrusive household appliances
InactiveCN103217603AWill not affect normal operationAccurate judgmentElectrical testingTransient stateEngineering
The invention discloses a recognition method of on-line monitoring of power consumption of non-intrusive household appliances, and belongs to the field of recognition of the power consumption of the household appliances. By means of an intelligent electricity meter in a family close to the outdoor, instantaneous currents or instantaneous power signals are obtained, the obtained signals are processed, steady state / approximately steady state or transient state characteristics of the signals are obtained, characteristic information of the signals is compared with information in a feature library by means of the crossed weighted method, and therefore equipment which is invested or removed can be recognized. The recognition method is simple in algorithm and accurate in judgment, and does not influence normal operation of the household appliance equipment.
Owner:CHONGQING UNIV
Spot welding system and dressing determination method
ActiveUS20110240605A1Easy to operateAccurate judgmentElectrode supporting devicesElectrode maintenanceImaging processingEngineering
A spot welding system including a welding gun with an openable / closable electrode pair; and a dressing determination device determining a quality of a shaping process applied to an electrode of the electrode pair. The dressing determination device includes a visual sensor obtaining an image of the electrode, identifying a base and a tip of the electrode on the image and measuring a distance between the base and the tip on the image, by image processing; a visual sensor control section allowing the visual sensor to measure the distance immediately before and after the shaping process is performed; a cut amount calculation section calculating a difference between the distances measured by the visual sensor immediately before and after the shaping process is performed, as a cut amount of the electrode; and a cut amount judgment section judging whether the calculated cut amount is within a predetermined acceptable range.
Owner:FANUC LTD
Vibration signal identification method for optical fiber perimeter system
ActiveCN102045120AAccurate judgmentReduce false alarm rateFibre transmissionTransmission monitoringBandpass filteringWavelet denoising
The invention relates to a vibration signal identification method for an optical fiber perimeter system, which comprises the following steps of: (1) signal acquisition; (2) windowing treatment; (3) bandpass filtering; (4) wavelet denoising; (5) vibration event detection; (6) characteristic parameter extraction; and (7) pattern matching and classification. The invention has the advantages that the method introduces more characteristic parameters such as short-term energy E, short-time average magnitude M, short-term average zero-crossing rate Z, each wavelet decomposition scale detail signal energy Ew and vibration signal power spectrum P in comparison with the prior art, accurately judges the classification of external vibration signals, and reduces the probability of false alarm.
Owner:CHENGDU JIUZHOU ELECTRONIC INFORMATION SYSTEM CO LTD
Method and Device for Detecting Safe Driving State of Driver
ActiveUS20170001648A1Simple principleEasy to implementCharacter and pattern recognitionExternal condition input parametersDriver/operatorTraffic crash
Disclosure is a method for detecting the safety driving state of a driver, the method comprises the following steps: (a) detecting the current sight direction of a driver in real time and acquiring a scene image signal in a front view field of the driver when a vehicle runs; (b) processing the acquired current road scene image signal according to a visual attention calculation model to obtain the expected attention distribution of the driver under the current road scene; and (c) performing fusion analysis on the real-time detected current sight direction of the driver in the step (a) and the calculated expected attention distribution of the driver in step (b), and judging whether the current driver is in a normal driving state and whether the driver can timely make a proper response to the sudden road traffic accident. The device is used for implementing the method and has the advantages of simple principle, easy realization, direct reflection of the real driving state of a driver, and improvement of the driving safety.
Owner:NAT UNIV OF DEFENSE TECH
Asynchronous motor stator winding inter-turn short circuit failure on-line detecting method and device
InactiveCN101025434AGuaranteed safe operationAvoid adverse effects of fault detectionDynamo-electric machine testingStator voltageInduction motor
The invention relates to a online testing process for shorted fault of asynchronous motor's stator winding, which is belong to Detecting Technology. It was designed to solve the detecting problem of stator winding. The project is that it figures out the voltage and current of negative sequence and positive sequence of the stator winding by collecting three-phase stator voltage, instantaneous-current signal. Then using of normal motor sample reference document estimated the filter value of the stator negative sequence, figured out the stator negative sequence current fault component. And then base on the threshold of the stator negative sequence current fault component educe failure exponent. Finally according to the index judge whether to exist short circuit failure or not. This invention also gave corresponding detection device. Not only can high sensitivity, high reliability and on-line measurement asynchronous motor stator windings at the beginning of the early short circuit fault, but also can judge short circuit phase. This can effectively ensure the asynchronous motor operating safely.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Method and system for judging double-end conversation and method and system for eliminating echo
ActiveCN101719969AEliminate high frequency effectsAccurate judgmentTwo-way loud-speaking telephone systemsCommunications systemMicrophone signal
The invention provides a method and a system for eliminating echo in a communication system with a loudspeaker and a microphone, the method comprises the following steps: carry out the noise energy estimation processing to a near-end microphone signal to obtain an estimated noise signal, wherein, the near-end microphone signal comprises a possible near-end speech signal, a possible background noise signal, an echo signal which is formed by outputting a possible far-end speech signal from the loudspeaker and being received by the microphone; carry out the echo estimation processing to the far-end speech signal to obtain an estimated echo signal, wherein, the far-end speech signal is output from the loudspeaker; obtain an error signal by the difference of the near-end microphone signal and the estimated echo signal; calculate the variance of the error signal and the variance of the estimated noise signal; calculate an judging factor, wherein, the judging factor corresponds to the variance of the error signal and the variance of the estimated noise signal; compare the judging factor and a predetermined threshold value, when the judging factor is less than the predetermined threshold value, judge a conversation which is not a double-end conversation, otherwise, judge the conversation which is the double-end conversation.
Owner:APPLE INC
Vehicle information detecting and recognizing system under multilane condition
ActiveCN103279996AImprove detection accuracyEasy to identifyTicket-issuing apparatusRoad vehicles traffic controlDot matrixLaser scanning
The invention discloses a vehicle information detecting and recognizing system under the multilane condition. The vehicle information detecting and recognizing system comprises a computer system and a portal frame stretching over lanes, wherein a laser scanner and a high-definition license plate recognition device are arranged on the portal frame, a first dot matrix type wheel shaft sensor, a shaft weight sensor and a second dot matrix type wheel shaft sensor are sequentially arranged on the lane under the portal frame, and the laser scanner, the high-definition license plate recognition device, the first dot matrix type wheel shaft sensor, the shaft weight sensor and the second dot matrix type wheel shaft sensor are respectively connected with the computer system. The vehicle information detecting and recognizing system has the advantages that the two-dimension cross section size and the running position of a vehicle are detected through the laser scanner, and the vehicle three-dimension reconstitution and the vehicle separation are realized; the license plate information and the human face information are precisely collected through the license plate recognition device; the vehicle information such as the shaft distance, the shaft length, the shaft number, the shaft type, the wheel distance, the wheel width and the wheel number are measured according to signals output after a vehicle tyre presses the wheel shaft sensor; and the shaft weight and the total weight are measured through the shaft weight sensor.
Owner:广州顺如电子科技有限公司
Bayesian statistical model based network anomaly detection method
InactiveCN101060444AFlexible approachHigh degree of intelligenceData switching networksNetwork packetAnomaly detection
The related network abnormal detection method based Bayes statistical model comprises: 1. grasping TCP / IP flow data package by bypass interception way; 2. decomposing attributes to form a data matrix; 3. mining data to build normal training matrix, known-abnormal training matrix, and unknown-abnormal training matrix; 4. continual grasping the TCP / IP package to detect them with Bayes evaluator; and 5. alarming the abnormal condition and filling into the known-abnormal training matrix by self-learning way; or else, back to step 4. This invention overcomes defects in prior art.
Owner:西安交大捷普网络科技有限公司
Normalizing chromosomes for the determination and verification of common and rare chromosomal aneuploidies
Owner:VERINATA HEALTH INC
Wavelet transformation and deep learning-based rolling bearing weak fault diagnosis method
The invention discloses a wavelet transformation and deep learning-based rolling bearing weak fault diagnosis method. The method comprises the following steps: a rolling bearing vibration signal is obtained, and the acquired vibration signal is subjected to continuous wavelet transformation to obtain a time-frequency diagram; autocorrelation operation is performed on wavelet coefficients corresponding to each frequency on the time-frequency diagram to filter out noise interference and extract periodic fault components; the Hilbert transformation is used to perform envelope demodulation to obtain a fault characteristic frequency; a processed time-frequency diagram is input as a feature diagram, and categories of early faults are determined by training a deep learning classification model. Theoretical and experimental results show that fault categories can be determined accurately at an early stage when weak fault of a rolling bearing occur based on an improved wavelet time-frequency diagram used as the classification model for input training, right determination results can be given when the method is applied to different bearings, high training speed can be realized, and high actual application value can be achieved.
Owner:绍兴声科科技有限公司
Fail judging method and analyzer
InactiveUS20050067301A1Ensure proper implementationAccurate judgmentImmobilised enzymesBioreactor/fermenter combinationsCurrent analysisReagent
An analyzer (A) includes a current measurer (42) for measuring the current flowing between paired electrodes (22a), (22b) when a sample is introduced to the reagent layer (23) of a sensor (2) and voltage is applied across the electrodes, while also including a processor (3) for analyzing the sample based on the current after a predetermined reference time point. The analyzer (A) further includes a fail determiner (44) which monitors the change of the current before and after the reference time point and determines that the sensor (2) is improper when the current change does not correspond to a predetermined current change.
Owner:PHC CORP +1
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