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264results about How to "Continuous detection" patented technology
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Intelligent detection device of defects of mobile phone outer shell based on machine vision
InactiveCN102218406AGuaranteed accuracyQuick checkOptically investigating flaws/contaminationSortingEngineeringFrontage
The invention discloses an intelligent detection device of defects of a mobile phone outer shell based on machine vision. The device comprises a transmitting device, detection systems, a degraded product unit and a computer; the transmitting device comprises two transmitting strips and a diversion air cylinder; each detection system respectively detects the frontage side, the left side, the rightside, the front side and the rear side of the mobile phone outer shell; each detection system comprises an illumination unit and an image collecting unit; the illumination unit illuminates one side of the outer shell of the mobile phone, and the image collecting unit photographs; collected image signals are transmitted to the computer; the computer recognizes the degraded mobile outer shell, and transmits the serial numbers of the mobile outer shell with defects to a degraded product rejecting unit; and the degraded product rejecting unit rejects the mobile phone outer shell with defects. According to the invention, defects such as scratches, burr, discoloration, dent, bubbles of the mobile phone outer shell can be detected, the degraded products are separated automatically, and the device has the characteristics of intelligence, high efficiency, stability and high accuracy.
Owner:SOUTH CHINA UNIV OF TECH
Methods of calibrating an imaging system using calibration beads
InactiveUS6906792B2Improve liquidityEasy procedureImage analysisIndividual particle analysisPoint spreadSmall sample
When utilized in a flow imaging instrument, calibration beads provide a known data source that can be employed in various self-diagnostic, calibration and quality metric applications for the both the optical system of the flow imaging instrument, as well as the flow cell of the flow imaging instrument. Such data can be used to determine point spread functions associated with an imaging system, to determine a sensitivity of an imaging system, and to determine a focal point of the imaging system. Imagery collected from calibration beads can be used to determine core size and stability and TDI / flow speed synchronization. Calibration beads can be beneficially employed to enable stable system operation, even when very low sample concentration, or very small sample sizes are to be analyzed.
Owner:AMNIS CORP
Base wave and harmonic detecting method based on Nuttall window double peak interpolation FFT
InactiveCN101113995AOvercome the effects of frequency fluctuationsQuick checkFrequency analysisUltrasound attenuationHarmonic
The invention discloses a fundamental wave and harmonic detection method based on a Nuttall window bimodal interpolation FFT (Fast Fourier Transform): a measured signal is carried out the modulus conversion and the low-pass filter wave processing, the signal is operated adding windows by adopting the low side petal voltage and rapid attenuation speed Nuttall window, the bimodal interpolation arithmetic is used for detecting the fundamental wave and the harmonic in the detected signal. The invention comprises the aspects of: (1) modulus conversion and digital low-pass filter wave; (2) FFT operation based on the Nuttall window; (3) bimodal interpolation and polynomial fitting to solve the fundamental wave and harmonic parameters.
Owner:HUNAN UNIV
Exercise monitoring and management system applied to diabetes rehabilitation
ActiveCN104305977AAvoid excessive exerciseAvoid dangerSensorsTelemetric patient monitoringEngineeringBluetooth
The invention provides an exercise monitoring and management system applied to diabetes rehabilitation, which is capable of obtaining physiological parameters and environmental parameters of a diabetic in an exercise process in real time and carrying out real-time processing and feedback on the data. The exercise monitoring and management system comprises front-end monitoring equipment used for obtaining the physiological parameters and the environmental parameters of the diabetic in the exercise process in real time, and then uploading the data to a mobile phone client through a Bluetooth module with low power consumption, wherein the mobile phone client is capable of locally storing and initially processing the data, displaying a result on an interactive interface and transmitting the monitoring information to a remote health management system in real time through a mobile communication network; the health management system is capable of comprehensively analyzing based on an exercise management theory of the diabetes and feeding an analysis result back to a doctor and a patient, so that danger caused by the excessive exercise during exercise is avoided, and the exercise rehabilitation condition of the patient can be conveniently monitored and counted for a long time.
Owner:爱多特(广东)网络技术有限公司
Reciprocating microfluidic pump system for chemical or biological agents
InactiveUS7195465B2Raise the potentialLong processPositive displacement pump componentsFlexible member pumpsFuel tankElectron microscope
A miniature pump has at least one controllable expansion-and-contraction chamber, and associated pair of tiny ducts interconnecting a fluid source and destination. The ducts communicate with the chamber(s); an linking tunnel links the ducts. Valves interact with fluid pressures due to expansion and contraction, imposing directionality on flow in the ducts and tunnel. Preferences: making the valve a passive flapper, implanting the pump in a creature, making the source a medication reservoir for supplying the creature; making the source a fuel tank and destination a tiny engine; making the source provide a specimen for assay and destination an observation slide; human or automatic examination of the slide under a microscope (e. g. electron microscope); making the source a reagent and destination a process stream; making the source a colorant and destination a colorant application system. Preferably included is an optical channel with intersecting fluid duct for optically monitoring pumped fluid.
Owner:KANE DAVID +1
Vibration control with operating state measurement
ActiveUS20060276949A1Reliably recognizeLower requirementVehicle testingAnalogue computers for trafficVibration controlMoving parts
The invention relates to a monitoring device and to a method for monitoring the function of the components of an agricultural implement, with a vibration sensor for providing signal values containing information on mechanical vibrations generated by moving components of the implement, an operating state detecting device for providing a signal containing information on the operating state of components of the implement, and a calculating device for generating state information on the basis of the state of the components of the implement. The calculating device can be operated to divide the signal values of the vibration sensor on the basis of the corresponding signals of the operating state detecting device into different classes, which correspond to different combinations of the operating states of the components in the detection of the signal values, and to compare the signal values divided into classes or data derived from these signal values with comparison values for generating state information.
Owner:DEERE & CO
Base wave and harmonic detection method based on fiver item Rife-Vincent(1)window double spectral line interpolation FFT
InactiveCN101261292AOvercome the effects of frequency fluctuationsQuick checkSpectral/fourier analysisAnalog to digital conversionFft fast fourier transform
The invention discloses a fundamental wave and harmonic wave detecting method based on five Rife-Vincent (I) windows doublet interpolation FFT (fast Fourier transform): detected signals are processed with analog-to-digital conversion and low-pass filtering, the five Rife-Vincent (I) windows which adopt a low sidelobe level and a rapid decay rate of the sidelobe carry out window-adding FFT operation on the detected signals, and the doublet interpolation calculating method is used for detecting the quantity of the fundamental wave and each harmonic wave of the detected signals. The fundamental wave and harmonic wave detecting method includes the following aspects: (1) analog-to-digital conversion and digital low-pass filtering; (2) FFT calculation based on the five Rife-Vincent (I) windows; (3) the doublet interpolation and the fitting of polynomial to obtain the parameter of the fundamental wave and the harmonic wave.
Owner:HUNAN UNIV
Method and device for detecting voltage fluctuation and flicker based on energy operator and spectrum correction
InactiveCN103116064AContinuous detectionLong-term detectionSpectral/fourier analysisMeasurement using digital techniquesFrequency spectrumEngineering
The invention discloses a method and device for detecting voltage fluctuation and flicker based on an energy operator and spectrum correction. The method comprises the steps of: extracting an envelope signal of a voltage flicker signal by utilizing a Teager-Kaiser energy operator, and speeding up an operational speed to overcome influences from change of parameters such as a signal frequency, a waveform, an amplitude value and a sampled data length during the extraction of the flicker envelope signal and realize rapid and real-time detection of the flicker signal; and performing improved FFT (Fast Fourier Transform) spectrum correction analysis on the voltage flicker signal by adopting a Kaiser window function with a freely selectable proportion of a width of a main lobe to a height of a side lobe, and exactly obtaining the frequency and the amplitude component of the voltage flicker signal when the frequency, the waveform and the amplitude value of the flicker signal are changed excessively. The device based on the method comprises a signal conditioning unit, a data processing unit and a data storage and display unit all of which are connected in order. The detecting method is convenient for rapid and in-time detection process of the signal; and the device has a simple structure and is easy to realize.
Owner:HUNAN UNIV
Base wave and harmonic detecting method based on Kaiser window double-line spectrum insert value FFT
InactiveCN101441233AOvercome the effects of frequency fluctuationsQuick checkSpectral/fourier analysisWave detectionHarmonic
The invention discloses a fundamental wave based on Kaiser Window bispectrum line interpolation FFT (Fast Fourier Transform) and a harmonic wave detection method. The method comprises the following steps: analog-to-digital conversion and low-pass filtration treatment is conducted on the signal to be detected; the Kaiser Window with free proportion selection between the attenuation of a main lobe and side lobes, flexible design realization, low side lobe level and quick attenuation speed is adopted to conduct windowing FFT operation on the signal; and bispectrum line interpolation algorithm is used for detecting base wave and harmonic quantities of the detected signal. The following aspects are included: (1) analog-to-digital conversion and low-pass filtration; (2) the FFT operation based on the Kaiser Window; (3) base wave and harmonic wave parameters derived by bispectrum line interpolation and polynomial fitting.
Owner:湖南海兴电器有限责任公司
Signal detecting device for detecting a difference signal for an electrical measurement of a vital parameter of a living being, electrode arrangement and method
ActiveUS20110125002A1Increase contact rateFacilitate continuous detectionElectrocardiographySensorsElectricityBiological body
What is described are a signal detecting device for detecting a vital parameter of a living being, having a plurality of electrodes and an electrode selecting device for selecting a pair of electrodes from the plurality of electrodes such that a difference signal suitable for measuring the vital parameter is derivable, an electrode arrangement and a method.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
Apparatus and method for reading out a differential capacity with a first and second partial capacity
InactiveUS7356423B2Continuous detectionSimple processPulse automatic controlDigital computer detailsElectrical and Electronics engineering
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
Fuel reforming apparatus
ActiveUS20100300382A1Accurate CalibrationContinuous detectionInternal combustion piston enginesGas modification by gas mixingHydrogen concentrationEngineering
Fuel reforming catalysts 28 generate a hydrogen-containing reformed gas when they come into contact with exhaust gas that contains a reforming fuel. Upstream and downstream air-fuel ratio sensors 58, 60 are respectively installed upstream and downstream of the fuel reforming catalysts 28. The upstream air-fuel ratio sensor 58 outputs a upstream sensor signal in accordance with oxygen concentration. The downstream air-fuel ratio sensor 60 outputs a downstream sensor signal in accordance with oxygen concentration and hydrogen concentration by using zirconia's oxygen detection capability and a change of a diffusion layer's hydrogen-concentration-dependent oxygen detection capability. An ECU 50 detects the hydrogen concentration without being affected by the oxygen concentration through the use of the upstream sensor signal in which only the oxygen concentration is reflected and the downstream sensor signal in which the oxygen concentration and hydrogen concentration are reflected. This makes it possible to establish a hydrogen concentration detection system with the common air-fuel ratio sensors 58, 60.
Owner:TOYOTA JIDOSHA KK
Container crane, and method of determining and correcting a misalignment between a load-carrying frame and a transport vehicle
ActiveUS7289876B2Quick correctionQuick identificationDigital data processing detailsArticle unpackingContainer craneEngineering
A container crane includes a movable trolley and a load-carrying frame pendantly connected to the trolley and comprised of a spreader and a head block, for transfer of a container from or to a transport vehicle. Plural optical detectors are mounted on the trolley for identifying longitudinal and transversal edges of the head block or spreader and the transport vehicle. Operatively connected to the detectors is a processing device for determining a spatial position of the edges and calculating a position of longitudinal and transversal center lines of the head block or spreader and the transport vehicle and their spatial positions in relation to one another. In this way a possible offset of the center lines of the head block or spreader with regard to those of the transport vehicle in longitudinal and transversal directions as well as a rotation angle of the center lines can be determined, whereby a detected offset or rotation angle is compensated by displacing the spreader relative to the head block.
Owner:SIEMENS AG
Magnetic sensing device, method of forming the same, magnetic sensor, and ammeter
ActiveCN1657967ASuppression hysteresisReduce offsetNanostructure applicationNanomagnetismHysteresisElectrical resistance and conductance
Owner:TDK CORPARATION
Living body inspection apparatus
ActiveUS20050065422A1Realize quantitative measurementContinuous detectionPerson identificationSensorsBiological bodyLow-pass filter
A living body inspection apparatus including an oscillation coil which passes an AC current, a detection coil which detects an AC magnetic field generated from the detection coil, an amplification circuit which amplifies a voltage generated by the magnetic field induced by the detection coil, a detecting unit for detecting the output signal of the amplification circuit, a low pass filter to which the output signal of the detecting unit is input, a unit for setting the oscillation coil and detection coil in first and second regions of the living body, a recording unit for recording the output of the low pass filter while the first region and the second region of the living body are moving and a displaying unit for displaying the data recorded in the recording unit or results of analysis of the recorded data.
Owner:HITACHI LTD
Vehicle-mounted air quality monitoring device and method
InactiveCN104713598AContinuous detectionEfficient detectionAir-treating devicesMeasurement devicesAir quality monitoringEngineering
Owner:SHANGHAI HANGSHENG IND
Linear scale, linear motor, and linear motor controller
ActiveUS20110109252A1Continuous detectionDC motor speed/torque controlAC motor controlWave shapeLeg length
Disclosed is a linear scale for obtaining a distance from a reference point. A scale detection mechanism is adapted to output waveform signals of the same phase. Also the scale detection mechanism corresponds to a magnetic flux density generated by magnetic bodies of a scale element. The scale detection mechanism may be sensors. The sensors are arranged at even intervals corresponding to a scale length of the scale element. The sensors are adapted to output sine-wave signals having the same phase to continuously detect the scale element in a movement direction of the scale element. The scale element has opposite ends each has the same polarity and configured such that an output voltage of the single sensor detecting the end of the scale element is reduced to one-half of an output voltage of the single sensor detecting the remaining portion of the scale element.
Owner:YAMAHA MOTOR CO LTD
Short tube flexible gear harmonic reducer of rigid wheel tooth dip angle and transmission rigidity testing device thereof
ActiveCN102777546AEasy meshImprove transmission stiffnessMachine gearing/transmission testingToothed gearingsDiameter ratioEngineering
The invention discloses a short tube flexible gear harmonic reducer of a rigid wheel tooth dip angle and a transmission rigidity testing device thereof, and relates to the technical field of harmonic reducers. According to the invention, the deflection of the flexible wheel gear teeth is caused by the reduction of the axial size of the short tube flexible gear harmonic reducer, so as to realize the reduction of the surface area between the rigid wheel gear teeth and the flexible wheel gear teeth, and to realize the lowering of the transmission rigidity; the problem of complicated operating process of the existing harmonic drive rigidity experiment testing device is solved; and the length diameter ratio of a soft wheel is 1 / 4 to 3 / 5 of a short tube wheel, the inner wheel of the rigid wheel with a dip angle is the wheel teeth with the dip angle alpha along the rigid wheel axial direction, and the deflection direction and the field angle direction of the soft wheel on a long shaft are coincident. The transmission rigidity testing device of the short tube flexible gear harmonic reducer implements current control namely torque control through a computer and a servo driver, and the harmonic drive output end realizes continuous loading unloading; and the harmonic drive rigidity of the short tube soft wheel is obtained, and the transmission rigidity is serially, rapidly accurately obtained.
Owner:DONGGUAN RICHTEK ELECTRONICS CO LTD
Steel cylinder supersonic flaw detecting machine
InactiveCN101339163AContinuous detectionStable detectionAnalysing solids using sonic/ultrasonic/infrasonic wavesElectrical controlWater circulation
The invention relates to a device for using ultrasonic wave to detect the manufacture defect of objects, in particular to a steel cylinder ultrasonic flaw-detecting machine which can also be used for the flaw detection of a steel tube; the device of the invention comprises an electrical control device, a front feeding device, a rear material-moving device, a steel cylinder conveying mechanism, a flaw detection host, a flaw detector, a mark printing mechanism and a water circulation system, wherein, at least three flaw detection hosts are arranged on the steel cylinder conveying mechanism, a driving device of the flaw detection host drives the detected steel cylinder to forward in a screw mode and coupling agents are filled between a probe and the detected steel cylinder. As the flaw detection is carried out by a mode of immerging the ultrasonic probe and the detected steel cylinder into the coupling agent, the flaw-detecting machine of the invention saves the procedures of plugging the mouth of the cylinder and pulling out the stopper, can carry out detection to the steel cylinder continuously and stably, improve the detection efficiency effectively and realize the automatic ultrasonic detection.
Owner:无锡莱林检测机械有限公司
Digital amplitude-integrated cerebral function monitor
ActiveCN101627909ALow environmental requirementsStrong anti-interferenceDiagnostic recording/measuringSensorsAudio power amplifierElectroencephalography
The invention provides a digital amplitude-integrated cerebral function monitor (CFM). The CFM comprises a signal acquisition system, a signal amplification system and a signal processing system, and signals are acquired by the signal acquisition system, amplified by the signal amplification system and further processed by the signal processing system, thereby obtaining an amplitude-integrated electroencephalogram (aEEG), wherein, the signal acquisition system is a single-lead or double-lead system; the signal amplification system comprises an isolation amplifier and a main amplifier; and the signal processing system comprises a CFM filter module, an amplitude-squeezing module and a peak detecting and smoothing module. The digital amplitude-integrated CFM provided by the invention has the advantages of low environmental requirements and high anti-interference and anti-drifting performance, and can achieve the continuous bedside detection on a real-time basis for a long time and reflect the changes in the cerebral function of patients on a timely basis.
Owner:CHILDRENS HOSPITAL OF FUDAN UNIV +2
Patternization based radar data analyzing method
ActiveCN101183495AIntuitive target imageWide range of radar typesWave based measurement systemsAircraft traffic controlTransmission protocolData file
The invention relates to a radar data analyzing method based on the figures, belonging to the computer application field of radar data process and transmission in the automatic system of air traffic control, the steps are as follows: (1) reading the radar parameter table from the parameter files, reading the map data from different layer files; (2) selecting a radar to be analyzed; (3) setting the central point coordinate of the selected radar as a central point, calculating by the coordinate projection on the map data, obtaining the coordinate value XY that the map is relative to the central point, calculating the screen coordinate according to the current display scale and displaying on the map according to the customer selected layer; (4) selecting radar history data for analysis; (5) reading the radar data file and analyzing according to the radar transmission protocol applied by the selected radar; (6) obtaining: first, a static display for radar data, second, a dynamic playback for radar data, third, text file output, as well as radar data analysis, map display of air traffic control, and the static display for radar data, namely target filtering display, radar position and magnetic deviation.
Owner:WISESOFT CO LTD
Radar apparatus, and program therefor
InactiveUS6970129B2Stably and continuously detecting targetStable detectionVehicle fittingsAnti-collision systemsRadarReflected waves
Provided is a radar apparatus capable of continuously and stably making a detection of a target even if a reflected wave from a target already detected falls into obscurity due to the presence of low-frequency noises or reflected waves from other targets. An estimated value of information on a target to be obtained when the target is detected in the present cycle are acquired from the target detected in a previous cycle. When a peak compatible with the estimated value is detected in only one of a frequency-rising section and a frequency falling section of a radar wave, if the frequency of the non-detected peak pertains a low-frequency noise domain or if a side-by-side travel flag is set with respect to the target detected in the previous cycle, the non-detected peak is considered as buried by low-frequency noises or peaks of other targets, and a peak pair corresponding to the detected target is extrapolated.
Owner:DENSO CORP
Apparatus and method for detecting harmonic current
InactiveCN101634669AFast convergenceFast dynamic responseMeasurement using digital techniquesSignal-to-noise ratio (imaging)Voltage
The invention discloses an apparatus and a method for detecting harmonic current. Voltage and current signals measured by a sensor enters a sampling maintaining A / D converting circuit through an anti-aliasing filtering circuit; a lock phase loop synchronization pulse generating circuit provides a conversion signal for the sampling maintaining A / D converting circuit; a digital signal processor uses an LMS / LMF self-adaptive harmonic current detection algorithm to detect a harmonic current value in load current; a keyboard circuit and a colorful liquid crystal display realize a man-machine conversation; and a ferroelectric storage stores data. The invention uses the improved LMS / LMF algorithm to update weight and uses the self-correlation estimation of the normalized prior error signal and the last error signal during a step-size iteration, thereby effectively avoiding the influence caused by a lower signal-to-noise ratio and obtaining the better stable effect. The invention uses a TMS320F2812 chip to realize on the specific algorithm; a DSP program is easy to operate to continuously detect signals to be detected for a long time; and the hardware circuit of the whole apparatus is simple, small and convenient to carry and store data.
Owner:JIANGSU VOLT ELECTRIC
Device for Measuring Administered Dose in a Target
InactiveUS20080292054A1Leveling precisionContinuous detectionDiagnosticsSurgical navigation systemsLiving bodyRadiation monitoring
The present invention relates to a radiation monitoring device 2; 20; 30; 40; 50; 60; 79, such as an implant or plaster, fixable relative to a target area 1; 73; 84 within a living body 10; 74. The radiation monitoring device is provided with at least one internal element Tx; Tx / Rx; 61, 62 for tracking variations of a position of the device relative to a radiation source 76, 82 arranged outside said target area 1, 73, 84. The radiation monitoring device is further provided with a dose measuring device to detect an administrated dose from the radiation source.
Owner:MICROPOS MEDICAL
Circulating microfluidic pump system for chemical or biological agents
InactiveUS20050249605A1Raise the potentialLong processPositive displacement pump componentsFlexible member pumpsFuel tankEngineering
A miniature pump has at least one controllable expansion-and-contraction chamber, and associated pair of tiny ducts interconnecting a fluid source and destination. The ducts communicate with the chamber(s); an linking tunnel links the ducts. Valves interact with fluid pressures due to expansion and contraction, imposing directionality on flow in the ducts and tunnel. Preferences: making the valve a passive flapper, implanting the pump in a creature, making the source a medication reservoir for supplying the creature; making the source a fuel tank and destination a tiny engine; making the source provide a specimen for assay and destination an observation slide; human or automatic examination of the slide under a microscope (e. g. electron microscope); making the source a reagent and destination a process stream; making the source a colorant and destination a colorant application system. Preferably included is an optical channel with intersecting fluid duct for optically monitoring pumped fluid.
Owner:KANE DAVID +1
Gray bus and its signal detection method
InactiveCN1844848AMeet the needs of precise positioningContinuous detectionCode conversionUsing electrical meansElectromagnetic couplingStandard line
The invention relates to a check device, especially providing a check bus arranged in Gray code method as Gray bus, and the method for detecting its signal. The invention comprises a cable sheath, a cable core and a mode core. Wherein, said core comprises at least two couples of core, while one couple is two parallel standard lines, and others are the address lines that crossed in each step; the step of each couple address lines are different, as 2i times of minimum step, while i=0, 1, 2, etc. Said Gray bus and the antenna are communicated via the electromagnetic couple, while detecting the position of antenna at the length direction of Gray bus. The invention uses the electromagnetic couple between the antenna and the Gray bus to transmit information, to realize non-contact position detecting, absolute position detecting with high anti-disturb ability.
Owner:WUHAN LEADDO MEASURING & CONTROL CO LTD
Method and monitoring device for the detection and monitoring of the contamination of an optical component in a device for laser material processing
ActiveUS20130258321A1Continuous detectionReflective surface testingOptically investigating flaws/contaminationLight sourceAngle of incidence
A method and device for the detection and monitoring of the contamination of an optical component in a device for laser material processing, which emits a process laser beam through or onto the optical component. A measurement beam emitted by a light source is projected under an angle of incidence onto an optical surface of the optical component. The beam reflected from the outer surface of the protective window under the angle of reflection corresponding to the angle of incidence is conducted through an aperture stop onto a first light-sensitive detector so as to record the intensity of the reflected beam. The intensity of the scattered radiation, scattered diffusely from the optical surface of the component under a scattering angle, is recorded by a second light-sensitive detector. The degree of the contamination of the component is determined from the recorded intensities of the reflected beam and the scattered radiation.
Owner:JURCA MARIUS
Vibration control with operating state measurement
ActiveUS8600627B2Reliably recognizeLower requirementVehicle testingAnalogue computers for trafficVibration controlEngineering
The invention relates to a monitoring device and to a method for monitoring the function of the components of an agricultural implement, with a vibration sensor for providing signal values containing information on mechanical vibrations generated by moving components of the implement, an operating state detecting device for providing a signal containing information on the operating state of components of the implement, and a calculating device for generating state information on the basis of the state of the components of the implement. The calculating device can be operated to divide the signal values of the vibration sensor on the basis of the corresponding signals of the operating state detecting device into different classes, which correspond to different combinations of the operating states of the components in the detection of the signal values, and to compare the signal values divided into classes or data derived from these signal values with comparison values for generating state information.
Owner:DEERE & CO
Complete and high-resolution test method for motion characteristics of particles in turbid media
InactiveCN101980000AReal-time detectionContinuous detectionScattering properties measurementsApplicability domainTemporal resolution
The invention discloses a complete and high-resolution test method for the motion characteristics of particles in turbid media. The method comprises the following steps of: performing continuous, complete and real-time detection on the motion characteristics of the particles in the process of 'solution-colloid-sediment' of the turbid media by combining the resolution relation between the characteristic value of a speckle pattern and particle motion and utilizing a dynamic speckle test light path according to the particle light scattering theory; simultaneously, performing transient study on different critical points of the particle motion in the process by using a femtosecond laser test light path to perform the analysis of high spatial and temporal resolution on transient dynamics of the particles in the turbid media; and combining the two steps to realize the complete test with high spatial and temporal resolution characteristic on motion images of the particles in the process of 'solution-colloid-sediment' of the turbid media finally. The method is a non-contact, high-accuracy and real-time online detection method, has the characteristics that the operation is simple and the application range is wide, and can be widely used in the fields of medical science, pharmacy, chemical production and the like.
Owner:HENAN UNIV OF SCI & TECH
Robot, map construction method, positioning method, electronic equipment and storage medium
ActiveCN109682368AReduce power consumptionLow costNavigation instrumentsVehicle position/course/altitude controlImage extractionVision sensor
The invention provides a robot, a map construction method, a positioning method, electronic equipment and a storage medium. The map construction method of the robot includes the steps that the robot traverses a working region according to a preset rule, and an initial map is constructed according to images which are collected in real time when the robot traverses the working region, and comprisesa first map body and a second map body, wherein the first map body includes mapping of the working region and a map coordinate system, and the second map body includes extracted scene features based on the collected images and a geometric quantity of the scene features. The map is constructed without active signals by the adoption of a passive vision sensor, the vision sensor is low in power consumption and cost, the quantity of obtained signals is large, and the map construction of the intelligent robot is optimized.
Owner:NEXTVPU SHANGHAI CO LTD
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