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290 results about "Test distance" patented technology
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A realization method and device for multi-carrier wave power share
ActiveCN101242664AIncrease power sharingIncrease coveragePower managementRadio/inductive link selection arrangementsCoupling lossCarrier signal
The invention discloses a implementing method and device for multi-carrier power sharing. The inventive method includes steps of: generating output power modulating instruction according to test distance between user terminal and base station, or coupling loss, or available signal power intensity of base station; sending the mentioned output power modulating instruction to base station, so as to instruct base station to distribute output power of multi-carrier for sharing according to the instruction. The invention dynamically modulates output power of carrier, improves power sharing, equivalently enhances coverage, reduces cost through scheduling of base station according to distance between user terminal and base station, coupling loss and intensity of available signal power received by user terminal, without changes on main hardware such as power amplifier.
Owner:HUAWEI TECH CO LTD
Automatic classification of media entities according to melodic movement properties
InactiveUS20060111801A1Easy to classifyDigital data information retrievalSpecial data processing applicationsDigital signal processingData mining
In connection with a classification system for classifying media entities that merges perceptual classification techniques and digital signal processing classification techniques for improved classification of media entities, a system and methods are provided for automatically classifying and characterizing melodic movement properties of media entities. Such a system and methods may be useful for the indexing of a database or other storage collection of media entities, such as media entities that are audio files, or have portions that are audio files. The methods also help to determine media entities that have similar, or dissimilar as a request may indicate, melodic movement by utilizing classification chain techniques that test distances between media entities in terms of their properties. For example, a neighborhood of songs may be determined within which each song has similar melodic movement properties.
Owner:MICROSOFT TECH LICENSING LLC
System and methods for providing automatic classification of media entities according to tempo
In connection with a classification system for classifying media entities that merges perceptual classification techniques and digital signal processing classification techniques for improved classification of media entities, a system and methods are provided for automatically classifying and characterizing tempo properties of media entities. Such a system and methods may be useful for the indexing of a database or other storage collection of media entities, such as media entities that are audio files, or have portions that are audio files. The methods also help to determine media entities that have similar, or dissimilar as a request may indicate, tempo(s) by utilizing classification chain techniques that test distances between media entities in terms of their properties. For example, a neighborhood of songs may be determined within which each song has similar tempo characteristics.
Owner:MICROSOFT TECH LICENSING LLC
System and methods for providing automatic classification of media entities according to tempo properties
In connection with a classification system for classifying media entities that merges perceptual classification techniques and digital signal processing classification techniques for improved classification of media entities, a system and methods are provided for automatically classifying and characterizing tempo properties of media entities. Such a system and methods may be useful for the indexing of a database or other storage collection of media entities, such as media entities that are audio files, or have portions that are audio files. The methods also help to determine media entities that have similar, or dissimilar as a request may indicate, tempo(s) by utilizing classification chain techniques that test distances between media entities in terms of their properties. For example, a neighborhood of songs may be determined within which each song has similar tempo characteristics.
Owner:MICROSOFT TECH LICENSING LLC
Method for sensing position of object in Internet of things
InactiveCN102184436ARelative error stabilityReduce ranging errorCo-operative working arrangementsRadio wave reradiation/reflectionPhase differenceThe Internet
The invention discloses a method for sensing a position of an object in the Internet of things, which is characterized by comprising the following steps of: establishing a three-dimensional coordinate system, and positioning a system for sensing the position of the object in the Internet of things, wherein the system consists of four ultra high frequency radio frequency identification (UHF RFID) reader-writers, an electronic tag and a general node module; determining the three-dimensional coordinate position of each UHF RFID reader-writer in the three-dimensional coordinate system; attaching the electronic tag to a tested object; testing a distance primarily to acquire a primarily-tested distance value d; solving an accurate actual distance d'; and solving the accurate position of the electronic tag. The method has the advantages that: by a phase difference of arrival (PDOA) distance measurement method with a dynamic frequency difference, the relative error of a measurement system can be stable, and a distance measurement error can be reduced when the actual distance is small.
Owner:BEIJING PICOHOOD TECH
Distributed optical frequency domain reflection magnetic field sensing device based on magnetostriction and demodulation method
ActiveCN104155619AIncrease test distanceImprove spatial resolutionMagnetic field measurement using magneto-optic devicesFiberRayleigh scattering
The invention discloses a distributed optical frequency domain reflection magnetic field sensing device based on magnetostriction and a demodulation method, relating to the technical field of distributed optical fiber sensing instruments. The device comprises a main interferometer which obtains a sensing signal and an auxiliary interferometer which provides a clock trigger signal for a collection device, and a detected sensing fiber is packaged on a magnetostriction material. The method comprises the steps of obtaining different beat frequency signals at main interference through a light source of linear tuning, and converting wavelength domain information to distance domain information of each position in a corresponding sensing fiber by using rapid Fourier transform. The signal on the sensing fiber is selected through a mobile window, and then the conversion to a wavelength domain is carried out through plural rapid Fourier inverse transform, namely the Rayleigh scattering spectra. According to the distributed optical frequency domain reflection magnetic field sensing device and the demodulation method, the testing distance is raised, the spatial resolution and high, the accurate positioning of a multiple-point magnetic field can be carried out at the same time, the magnetic field strength can be measured at 5.3mT to the minimum, the testing distance can reach more than 300meters, and the magnetic field positioning accuracy can reach 14centimeters.
Owner:TIANJIN UNIV
System and methods for providing automatic classification of media entities according to consonance properties
In connection with a classification system for classifying media entities that merges perceptual classification techniques and digital signal processing classification techniques for improved classification of media entities, a system and methods are provided for automatically classifying and characterizing musical consonance properties of media entities. Such a system and methods may be useful for the indexing of a database or other storage collection of media entities, such as media entities that are audio files, or have portions that are audio files. The methods also help to determine media entities that have similar consonance by utilizing classification chain techniques that test distances between media entities in terms of their properties. For example, a neighborhood of songs may be determined within which each song has a similar consonance.
Owner:MICROSOFT TECH LICENSING LLC
Cement concrete self-restriction contraction stress test approach
InactiveCN101221164ATest accurateEasy to testUsing mechanical meansMaterial testing goodsLong axisPrism
A concrete self-restriction shrinkage stress detecting method relates to a method for detecting the concrete self-restriction shrinkage stress. The method aims at solving the problem of generating the self-restriction shrinkage stress caused by the shrinkage deformation difference at various positions in a concrete sample that is not considered by the existing concrete shrinkage stress detecting method. The method is provided with a humidity sensor arranged in a preformed hole of a first concrete sample with a prism shape, embedded with a plurality of groups of metal gauge heads at the two ends of an axes of a long axis of a second concrete sample with a prism shape in advance, respectively embedded with a metal gauge head along two ends of an axis of a thin slice shape sample, respectively detects relative humidity value, shrinkage value, and completely free shrinkage and deformation value at the location with a distance of h from the surface of the concrete, thereby calculating the self-shrinkage capacity at the location with the distance of h from the surface of the concrete. The detecting method of the invention can accurately and conveniently detect the self-shrinkage capacity of the concrete generated by the shrinkage and deformation at different positions of the inner and outer layers under different environmental conditions.
Owner:甘肃土木工程科学研究院有限公司
Automatic test method for directional diagram of short-wave large-scale antenna array
The invention discloses an automatic test method for a directional diagram of a short-wave large-scale antenna array. The method includes the following steps: (1) 2D<2> / Lambda is used as a minimum test distance, wherein R is a distance between a to-be-tested antenna and a signal source, D is a maximum aperture of the antenna array and Lambda is a work wavelength; a test track is concentric circles which rise gradually with radiuses being reduced gradually; (2) test field intensity data and space GPS orientation data are combined and interferences and noise signals are removed and then through an algorithm, an overall directional diagram is calculated in an inversion manner. In the automatic test method, the whole system adopts a radio communication means to carry out whole-journey remote control on a test process so that test efficiency is improved and a function which cannot be achieved by the prior manual tests is realized; and at the same time, intervention of an automation device reduces errors caused by the manual tests and the accuracy and precision are improved.
Owner:THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
Antenna directional pattern testing method based on spherical surface near-field scanning extrapolation
InactiveCN103245841AClear analysisEasy to analyzeAntenna radiation diagramsCylindrical waveAcoustics
The invention relates to an antenna directional pattern testing method based on spherical surface near-field scanning extrapolation. Through near field testing, a far-field directional pattern can be obtained by subjecting obtained data to arithmetic extrapolation, so the testing distance is reduced and plane wave conditions required by cylindrical wave test are not required. A three-dimensional direction pattern obtained finally can analyze performance of an antenna more clearly and visually, and has great engineering practical value. The testing method can realize effective close-range antenna testing, saves testing cost, lowers testing difficulty, and meanwhile aims to obtain the three-dimensional direction pattern of a tested antenna so as to analyze performance of the antenna more accurately.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
System and methods for providing automatic classification of media entities according to melodic movement properties
InactiveUS20060096447A1Easy to classifyElectrophonic musical instrumentsDigital data information retrievalDigital signal processingData mining
In connection with a classification system for classifying media entities that merges perceptual classification techniques and digital signal processing classification techniques for improved classification of media entities, a system and methods are provided for automatically classifying and characterizing melodic movement properties of media entities. Such a system and methods may be useful for the indexing of a database or other storage collection of media entities, such as media entities that are audio files, or have portions that are audio files. The methods also help to determine media entities that have similar, or dissimilar as a request may indicate, melodic movement by utilizing classification chain techniques that test distances between media entities in terms of their properties. For example, a neighborhood of songs may be determined within which each song has similar melodic movement properties.
Owner:MICROSOFT TECH LICENSING LLC
Far field test system and test method for digital array secondary radar antenna pattern
ActiveCN103743960AHigh precisionProcessing speedAntenna radiation diagramsLocal oscillatorTester device
Owner:四川九洲空管科技有限责任公司
Device and method for calibrating non-contact type electrostatic voltmeter
The invention provides a device and method for calibrating a non-contact type electrostatic voltmeter. The method includes the steps that a direct-current high-voltage power supply and metal plate electrodes are utilized to acquire a standard static filed at local space near the centers of the electrodes, the voltage of the non-contact type electrostatic voltmeter can be traced to the direct-current voltage standard, and an experimental method that the edge effect is increased is adopted to test the edge effect of the metal plate electrodes. The risks that people get an electric shock are reduced through a glass flat plate support which bears the metal plate electrodes and through a protective resistor, and a perpendicular moving mechanism can adjust the test distance of a calibrated meter. A detachable vernier caliper is adopted, and therefore tracing is convenient to conduct.
Owner:BEIJING DONGFANG MEASUREMENT & TEST INST
System and method for implementing reliable short-range communication by detector array
ActiveCN101329399ALow costEnsure safetySubstation equipmentUsing reradiationDetector arrayComputer terminal
A system (10) for realizing the reliable near field communication by utilizing a detector array is characterized in that the system (10) comprises a radio frequency mobile terminal (12) containing a radio frequency SIM card (11) and a radio frequency control terminal (13); a method comprises the following steps: a communication state database of each type of the radio frequency mobile terminal (12) is established; the communication between the radio frequency mobile terminal (12) to be tested and the radio frequency control terminal (13) is carried out, the radio frequency mobile terminal (12) carries out the communication with a plurality of groups of detectors (131) of the radio frequency control terminal (13) at a certain testing distance; the actual test results and the situations recorded by the communication state database are compared, therefore, the approximate range of the communication distance between the radio frequency mobile terminal (12) and the radio frequency control terminal (13) is judged. The method and the proposal of the invention can allow the data communication distance between a radio frequency communication terminal and a radio frequency communication device to be reliably controlled in the near field range, thereby ensuring the transaction safety and fundamentally ensuring the reliability of the communication.
Owner:NATIONZ TECH INC
Vehicle driving deviation automatic detection method based on vehicle-mounted image sensor
ActiveCN110008893AMeet the test requirementsHigh degree of automationInternal combustion piston enginesCharacter and pattern recognitionEngineeringVehicle driving
The invention discloses a vehicle driving deviation automatic detection method based on a vehicle-mounted image sensor. The vehicle driving deviation automatic detection method comprises the followingsteps: 1) collecting images of a vehicle running to two measuring points in a running deviation test area through the vehicle-mounted image sensor, wherein a lane center line for identification, a first measuring point and a second measuring point are arranged in the running deviation test area; 2) identifying and processing the acquired image comprising the lane center line to obtain the pixel coordinates of the vehicle at the first measuring point and the second measuring point, and extracting the pixel coordinates of the feature point of the lane center line; 3) calibrating the camera, andcalculating a conversion matrix for converting pixel coordinates into world coordinates; and 4) according to the world coordinates corresponding to the two measuring points, obtaining the driving deviation amount of the vehicle in the test distance, and the test distance being the interval distance between the two measuring points. The method is high in detection efficiency, can determine the vehicle driving-in angle during initial triggering, does not need other triggering points, and is simple and convenient in test field layout.
Owner:WUHAN UNIV OF TECH
Hand-held automatic cable fault location device
ActiveCN106707103ASolve test problemsHigh positioning accuracyFault location by conductor typesInformation technology support systemTest efficiencyUser needs
The invention discloses a hand-held automatic cable fault location device. The type of a cable fault can be judged automatically, the fault distance can be located automatically, and the test range can be selected according to the splitting condition of a cable. By manually selecting the test distance of a to-be-tested cable through a rotary switch, the problem on how to test a split cable can be solved. High-speed sampling is realized through a four-channel AD9288 chip, and the positioning accuracy and the system stability are improved. By setting a three-meter test extension line, the accuracy of short-distance fault location is improved, and the problem concerning test in a test blind area is solved. Test signals are calculated in real time through built-in SOPC, the fault type and the fault distance are calculated automatically, and the test efficiency is improved. Based on the design of SOPC, high flexibility is achieved, and upgrading can be carried out at any time according to user needs. By setting a screen locking key, test data can be locked in real time, and convenience is brought to users in test result recording.
Owner:NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
Range-finding calibration tool and range-finding calibration method and device
The invention discloses a range-finding calibration tool and a range-finding calibration method and device. The range-finding calibration tool comprises a placing platform and a calibration substrate over the placing platform. The placing platform and the calibration substrate are in parallel. A mobile terminal is placed on the placing platform in order that an ultrasonic sensor of the mobile terminal emits ultrasonic to the calibration substrate. The calibration substrate is used for reflecting received ultrasonic back to the ultrasonic sensor of the mobile terminal in order that the mobile terminal may generate a test distance between the placing platform and the calibration substrate and generates a range-finding calibration parameter according to the test distance and a preset standard distance. According to the technical scheme provided by the embodiment of the invention, the range-finding calibration tool calibrates the range-finding function of the ultrasonic sensor of the mobile terminal and increases the range-finding accuracy of the ultrasonic sensor of the mobile terminal after the mobile terminal is used.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD
Diode photoelectricity test method
ActiveCN104360256AAvoid prone to short circuitsAvoid short circuitIndividual semiconductor device testingPower flowCharge rate
The invention belongs to the field of diodes and discloses a diode photoelectricity test method. The method includes: determining a diode wafer test distance; selecting to-be-tested chips on a wafer of a to-be-tested diode according to the test distance before the wafer of the to-be-tested diode is scratched; subjecting the selected to-be-tested chips to photoelectricity test respectively. The step of subjecting the selected to-be-tested chips to photoelectricity test respectively includes: connecting a first test probe into a P-electrode of the current to-be-tested chip; connecting a second test probe into an N-electrode of a first chip, wherein the first chip and the current to-be-tested chip are both positioned on the wafer of the to-be-tested diode; charging rated current or rated voltage to the first test probe and the second test probe; detecting photoelectric parameters of the to-be-tested chips by measurement equipment.
Owner:HC SEMITEK SUZHOU
Full-solar-blind ultraviolet imaging quantified detection method based on photon counting technology
A full-solar-blind ultraviolet imaging quantified detection method based on a photon counting technology comprises the steps of: obtaining an ultraviolet photon counting equivalent value by adopting a formula shown in the specification; fixing a gain set value of a full-solar-blind ultraviolet detection instrument to the 60% position of a measuring range in a photon counting process; and carrying out photon counting in a specific area object, and carrying out counting on only a single discharge position, wherein a counting area covers all continuous points and more than 90% of stay points caused by rayleigh scattering. According to the invention, a full-solar-blind ultraviolet imaging instrument is used for detecting corona discharging, the specific position of corona discharging in a high-voltage electric device is obtained through an ultraviolet and visible light two-channel fused image in the ultraviolet imaging instrument, then ultraviolet photons at the corona discharging position are counted so as to carry out quantified analysis on the corona discharging, the influences factors such as the detecting distance, the environment humidity and the voltage level are modified, and an ultraviolet photon detection and correction formula superior to an existing standard.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
Visual acuity testing apparatus
A visual acuity testing apparatus capable of performing visual acuity testing under substantially uniform conditions even when a test distance and an installation distance vary has a projection optical unit including a disk whereon a chart is placed, an illumination light source, and variable projection lenses which are moved so as to change an image-forming position and an image size of an image of the chart, an input unit into which an installation distance between the screen and the visual acuity testing apparatus and a test distance between the screen and an examinee are inputted, a projection lens driving unit which moves the variable projection lenses based on the installation distance and the test distance, and a light intensity adjusting unit which adjusts light intensity based on the installation distance and the test distance so that brightness of the chart image falls within a predetermined reference range.
Owner:NIDEK CO LTD
Automatic three-dimensional radio frequency identification (RFID) test device
InactiveCN102213752AAccurate and effective testingAccurate and effective electromagnetic field distributionMagnetic measurementsElectrostatic field measurementsSignal waveElectromagnetic field
Owner:叶永嘉
Method for assessing technical parameters of narrow-band non-contact ultrasonic partial discharge testing instruments for power systems
A method for assessing technical parameters of narrow-band non-contact ultrasonic partial discharge testing instruments for power systems is characterized in that sinusoidal analog voltage signals which are outputted by a function generator, are adjustable in amplitude value and have the frequency of 40 kHz are used for driving a narrow-band ultrasonic emitter to generate space ultrasonic waves of which the radiant power can change in the forward direction; and for an ultrasonic testing instrument adopting a narrow-band non-contact manner, the sensitivity amplitude value, the directional included angle, the effective testing distance, the rangeability and other technical parameters are assessed practically. The method is combines the characteristic of integrative packaging number value display of a narrow-band non-contact ultrasonic partial discharge testing instrument, starts with the spread principle of space ultrasonic radiation, aims at the core technical parameters such as sensitivity, directionality, attenuation characteristic and rangeability, utilizes the function generator to solve the assessment problem of such equipment from the angle of space ultrasonic radiation, and has the remarkable advantages of portability, intuitiveness, accuracy, quantification, capability of repetition measurement, and the like.
Owner:YUN NAN ELECTRIC TEST & RES INST GRP CO LTD ELECTRIC INST +1
Correction method based on multi-distance auto focusing
The invention discloses a correction method based on multi-distance auto focusing. Through a mode of combining coarse adjustment and fine adjustment, large and small step sampling is carried out, curve fitting is carried out, the clearest position is searched, a depth of field table of a lens is used and the clearest position in the current test distance is combined to position coarse adjustment positions in other test distances, high-frame rate small-pixel parameters are adopted, central area interception is carried out on a full-size image, the correction precision is improved, the correction time for a single distance is shortened, multi-distance test is realized, and the production efficiency of products can be effectively enhanced.
Owner:NINGBO SUNNY OPOTECH CO LTD
Method of acquiring target RCS by using high resolution imaging
InactiveCN106569191AReflect the scattering propertiesGuaranteed calculation accuracyWave based measurement systemsHigh resolution imagingImaging processing
The invention provides a method of acquiring a target RCS by using high resolution imaging. Firstly, a filtered-back projection algorithm is adopted to carry out imaging processing on target near field echo data; then, through a CLEAN algorithm, scattering centers are extracted from a two-dimensional image sequentially from strong to weak; and finally, each scattering center serves as a discrete point scattering source for vector composition to rebuild a target scattering field, and thus, the target RCS is calculated and obtained. As the filtered-back projection algorithm is high in imaging precision, the position information and the strength value of each scattering center of the target can be accurately presented; as the rebuilt scattering field is generated by a limited number of scattering centers extracted through the CLEAN algorithm, the scattering features of the target can be restored completely, and environment noise outside the target is not introduced. As no far field testing distance problem exists for the scattering centers, the scattering features obtained through vector composition are the far field scattering features of the target, and the target RCS calculation precision is ensured.
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Speed-testing distance-measuring method for railway trains
InactiveCN110871827AGuaranteed reliabilityGuaranteed accuracyRailway signalling and safetyAccelerometerTest distance
The embodiment of the invention provides a speed-testing distance-measuring method for railway trains. The method comprises the steps of respectively obtaining first driving data and second driving data through a speed sensor module and an accelerometer module, wherein the first driving data comprises a first speed and a first distance, and the second driving data comprises a second speed and a second distance; and according to the first driving data and the second driving data, judging whether an idling slippage condition is met, according to the judgment result, determining to adopt the first speed and the first distance, or according to the second speed and the second distance, obtaining current speed-testing distance-measuring results. According to the embodiment of the invention, thefirst driving data of a speed collecting module and the second driving data of the accelerometer module are obtained, whether the predetermined idling slippage condition is met is judged, and according to the judgment result, the speed-testing distance-measuring results of the railway train are obtained according to the first driving data or the second driving data, so that the reliability and theaccuracy of the speed-testing distance-measuring results can be guaranteed.
Owner:通号城市轨道交通技术有限公司
Near-field testing method for reconstructing antenna array far-field directional diagram in radiating near-field region
ActiveCN108594026AShorten the test distanceReduce complexityAntenna radiation diagramsPhase correctionMimo antenna
The invention discloses a near-field testing method for reconstructing an antenna array far-field directional diagram in a radiating near-field region, and belongs to the technical field of antenna measurement. The method comprises the steps: carrying out the phase correction of all antenna units in a to-be-detected antenna array; and reconstructing the antenna array far-field directional diagramin the radiating near-field region under a given distance, wherein the phase correction indicates that the beam pointing direction (shown in the description) of the antenna array far-field directionaldiagram and a near-field testing distance R jointly determine the phase distribution of all antenna units. According to the invention, a far-field directional diagram of a large-scale MIMO antenna array is directly reconstructed at a position with the testing distance R in the radiating near-field region, and the method does not need the near-field to far-field conversion. Afterwards, the methodcan achieve the direct measurement of the far-field directional diagram at the near-field testing distance R. Therefore, the method shortens the testing distance of the large-scale MIMO antenna array,and also reduces the complexity of a near-field measurement system.
Owner:TSINGHUA UNIV
Visual functional detection system and method based on smart phone
InactiveCN107198505AReal-time measurementAccurate measurementDevices with voice recognitionSubstation equipmentDiseaseVisual function
The invention provides a visual functional detection system and method based on a smart phone. The system comprises a sighting mark display unit, a voice unit, an analysis and judgment unit, a real-time calculation unit, a sighting mark conversion unit, a real-time distance monitoring unit, a result display unit and a comprehensive analysis unit. The method includes the steps of utilizing mobile software to control visual functional detection, analysis, judgment and other procedures, utilizing a front-facing camera of the phone to real-timely monitor the testing distance between users' eyes and the sighting mark at the same time, and calculating a visual value corresponding to the presently displayed sighting mark according to the distance obtained from monitoring. The visual functional detection system and method based on the smart phone have the advantages of providing a fast and reasonable method for sighting mark conversion and definition judgment, achieving visual functional detection in any testing distance and real-time mobile detection of visual functions without an influence on precision of the detection, reducing system requirements for detection environment, effectively accelerating detection, enhancing randomness of occurrence of the sighting mark, and having a significant meaning for visual protection and prevention of visual diseases.
Owner:天津市天中依脉科技开发有限公司
Test device for testing distance between centers of two through holes
InactiveUS20120266477A1Mechanical clearance measurementsOther workshop equipmentSoftware engineeringTest fixture
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
Dehydration rotary speed controlling device for washing machine and controlling method thereof
ActiveCN1924160AAdjust the spin speedImprove dehydration efficiencyControl devices for washing apparatusTextiles and paperMicrocontrollerDriver circuit
This invention discloses one washing machine drying speed control device, which comprises outside barrel and Hall displacement sensor and matched magnetic elements. This invention discloses one drying speed control method, which comprises the following steps: a, testing distance between washing machine outside cylinder and case; b, computing current bias reference values according to washing machine self parameters and current speed and clothes volume; c, judging the distance between outside barrel and case within current reference parameters range; if yes, then entering step d, if not then entering step e; d, improving speed; e, lowering rotation speed.
Owner:HAIER GRP CORP +1
Sensor obstacle avoiding system and method capable of detecting orientation of obstacle
PendingCN108020846ARealize the recognition and bypass functionEasy to moveElectromagnetic wave reradiationComputer moduleLight signal
The invention provides a sensor obstacle avoiding system and method capable of detecting orientation of an obstacle. The system comprises a processor, a signal splitter, a multiple-path emitter, an emission signal processing module, a reception signal processing module and a receiver. The processor comprises a TOF chip. The emission signal processing module is arranged in the transmitting direction of the multiple-path emitter. The reception signal processing module is arranged in the optical signal receiving direction. The receiver is arranged in the light condensation direction of the reception signal processing module, and the receiver is connected with the processor. The multiple-path emitter sends infrared light signals having phase modulation in sequence according to time sequence.The emission signal processing module carries out spatial modulation on the multiple paths of infrared light signals to realize infrared light signal emission in the specific direction according to the fixed azimuth angle. The processor processes and calculates each orientation test distance information, and carries out analysis on all orientation distance information to obtain barrier distance, orientation and size information, thereby facilitating motion of a movement device and realizing an obstacle identification and detouring function.
Owner:SHANGHAI LANBAO SENSING TECH
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