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81results about How to "Reduce the cost of observation" patented technology
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Seabed lateral deformation and sliding observation device and method
ActiveCN105301193AObvious lateral deformationTest accurateMaterial analysisOcean bottomMeasurement device
The invention provides a seabed lateral deformation and sliding observation device and method. The seabed lateral deformation and sliding observation device comprises an auxiliary ship and a seabed observation system, wherein the auxiliary ship is provided with an offshore drilling rig and a lifting device, and the seabed observation system is provided with a displacement measurement device, a data acquisition sealing cabin and a subsidence prevention frame. The displacement measurement device is of a rod joint combination structure with a cable, each joint point is provided with a three-axis acceleration sensor, and the displacement deviation of each joint point can be calculated according to the posture change of the corresponding three-axis acceleration sensor. The method includes the steps that the auxiliary ship is utilized for drilling a target point position so that the seabed observation system can be arranged, the seabed lateral deformation and sliding are observed and recorded through the displacement measurement device in the seabed observation system, fishing and recycling are conducted after the in-situ observation cycle is ended, and the deformation amount and the deformation process of seabed soil can be obtained by analyzing data. The seabed lateral deformation and sliding observation device and method provide a new thought and a new method for seabed lateral deformation and sliding observation and have the advantages of being long in observation cycle, capable of being repeatedly used, wide in observation range, high in accuracy and the like.
Owner:OCEAN UNIV OF CHINA
Surface flow measurement method based on monostation shipborne high-frequency ground wave radar
ActiveCN103604944AReduce angular resolutionReduce the cost of observationFluid speed measurementRadio wave reradiation/reflectionMeasurement costEstimation methods
The invention provides a surface flow measurement method based on a monostation shipborne high-frequency ground wave radar, belonging to the space-time processing field of shipborne high-frequency ground wave over-the-horizon radar signals and the ocean surface flow remote sensing field. The surface flow measurement method solves the problems of difficult synchronizing detection, small remote sensing field, high measurement cost and low observation efficiency of the traditional shore-based high-frequency ground wave radar which measures the surface flow vector field by using a two-station measurement scheme. A sea area to be measured is divided into a plurality of sector grids, and each grid is a detection unit; the position of actually measured positive / negative first-order Bragg spectral peak on each detection unit is obtained by a time-space joint spectrum estimation method and through spectrum search, and a radial flow velocity on the corresponding detection unit is obtained so that the radial flow field distribution of the measured sea area can be obtained; the optimal surface flow vector field on each unit is obtained by the least square method; the optimal surface flow vector fields which are measured in the same detection unit at a plurality of measurement moments are weighted and averaged so that the surface flow vector field of the measured sea area can be obtained. The surface flow measurement method based on the monostation shipborne high-frequency ground wave radar is specifically used for measuring the ocean surface flow.
Owner:HARBIN INST OF TECH
Method and device for observing submarine sand wave migration based on pressure meter
ActiveCN107063196ARealize long-term in-situ observationHigh reusabilityOpen water surveyWater resource assessmentMeasurement deviceObservation point
The invention discloses a method and device for observing submarine sand wave migration based on a pressure meter. The device comprises an observation system and auxiliary equipment, wherein the auxiliary equipment comprises an auxiliary ship, a lifting device and the like; the observation system is integration of a fixed device, a period observation device and a wavelength observation device; the period observation device and the wavelength observation device are balls with holes, a water depth pressure meter, an MRU three-dimensional attitude sensor and a rotary sediment profile imager are fixed in each of the period observation device and the wavelength observation device; and the principle is measuring a time interval between adjacent water pressure with extreme values and wavelengths thereof and then calculating the migration rate of a submarine sand wave. The method comprises the steps of calibrating instruments indoors; positioning a target observation point by using the auxiliary ship and laying the observation system; and observing and recording the period and the wavelength of submarine sand wave migration through the period and wavelength observation system, thereby achieving observation of submarine sand wave migration. A novel idea and method is provided for observation of submarine sand wave migration, and the device and the method have the characteristics of being simple in operation step and long in in-situ measurement period, can be repeatedly utilized, and are suitable for long-term in-situ observation of shallow submarine sand wave migration.
Owner:OCEAN UNIV OF CHINA
High precision deformation monitoring device and method based on Beidou positioning
PendingCN106526636AAccurate locationGuaranteed accuracyActive open surveying meansSatellite radio beaconingDeformation monitoringPrism
The invention provides a high precision deformation monitoring device based on Beidou positioning. The device comprises a total station instrument, portable observation stations, and a center service station. Each of the portable observation stations comprises a Beidou positioning antenna, a forced centering device, a universal prism, an optical centering device, a leveling base and a tripod arranged from the top to bottom. Through the joint measurement solution of the Beidou positioning antenna and a near CORS station, the 3D coordinate A of each observation station is obtained, a coordinate system is subjected to network adjustment, at the same time the total station instrument and the universal prism are used to position the observation stations again in the coordinate system so as to obtain the 3D coordinate B of each observation station, through the comparison calculation of two coordinates, the actual initial coordinate of each observation station is corrected, the total station instrument is removed, and the deformation monitoring of the position is carried out through the change of the coordinates obtained by the Beidou positioning antenna. The monitoring device and method are simple and practical, the precision of the data measurement is high, the real-time monitoring can be realized, and the use cost of the total station instrument can be reduced.
Owner:HUNAN LIANZHI BRIDGE & TUNNEL TECH
Method, device and system for radio wave refraction correction
ActiveCN103217177AReal-time detectionReduce volumeIndication of weather conditions using multiple variablesMitigation of undesired influencesRefractive index profileIonosphere
The invention discloses a method, a device and a system for radio wave refraction correction. The method comprises the following steps of: based on historical meteorological sounding data and ground temperature-humidity-pressure data, obtaining troposphere refractive index profile in real time; based on a GNSS (Global Navigation Satellite System) signal acquired by a ground-based singular GNSS receiver, obtaining an ionized layer vertical total electron content measured value in real time, and based on the ionized layer vertical total electron content measured value, inversing the ionized layer electron density profile through a genetic non-linear optimization algorithm; calculating the radio wave environment refraction error through a ray tracing method according to the troposphere refractive index profile and the ionized layer electron density profile; and correcting the target detection data. The method, the device and the system can improve the radio wave environment sensory capability in engineering, accurately provide the radio wave environment refraction error and effectively improve the detection precision of a target.
Owner:THE 22ND RES INST OF CHINA ELECTRONICS TECH GROUP CORP
Method for obtaining surface layer meteorological element profile cross-sectional data based on remote control airship
InactiveCN101702037AEasy to collectEasy to handleWeather condition predictionSurface layerRemote control
The invention relates to a method for obtaining surface layer meteorological element profile cross-sectional data based on a remote control airship. Through integrating the remote control airship and an meteorological element recorder, and combining with differential GPS space positioning technology, the horizontal route of the remote control airship is vertical to plot boundary lines of two land types, longitude and latitude coordinates of a plurality of horizontal routes arranged in the vertical direction are identical, through a common time item of a flight record and a measuring data, the meteorological element data is linked with the space position data. According to the delay time measured by the meteorological element recorder and combined with the flight speed data, the meteorological element measuring space position is corrected. The meteorological element vertical and horizontal profile data is sequentially processed by a mathematical curve fitting; through the uniformly-spaced dereferencing of the vertical and horizontal position variable, the meteorological element vertical and horizontal profile fitting curve is sequentially discretized. The invention can precisely and particularly obtain two-dimensional profile cross-sectional data in the vertical and the horizontal directions of the surface layer meteorological element.
Owner:NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
Precise search observation method for form and evolutionary process of crack of coal-mine roof
InactiveCN102944906AAdvantages of Observation MethodAvoid accidental deletionGeological measurementsComplete dataAnalysis data
The invention discloses a precise search observation method for the form and the evolutionary process of cracks of a coal-mine roof. The precise search observation method comprises the following steps of: (1) using a geological drill to carry out roof drilling; (2) using a rock-stratum observation recorder to search a surface crack area; (3) using a double-end water plugging device to search deep cracks in the surface crack area; (4) analyzing data and determining the positions of the deep cracks; (5) installing a multi-point displacement meter on the positions of the deep cracks to observe crack evolution data; and (6) comprehensively analyzing data obtained by the double-end water plugging device, the rock-stratum observation recorder and the multi-point displacement meter, and then determining the distribution, the form and the evolutionary process of the cracks of the roof. The precise search observation method disclosed by the invention has the advantages that in the whole observation process, the observation cost is furthest saved, the positions of the cracks, the form of the cracks on the surface, the degree of the deep cracks and the complete data of the evolutionary process of the cracks are obtained, and the result is accurate.
Owner:SHANDONG UNIV OF SCI & TECH
Metal-semiconductor composite structure, an SPPs excitation mode and preparation method
InactiveCN108666865AHigh near-field local enhancement effectImprove excitation efficiencyLaser optical resonator constructionNanotechnologyFluorescenceLong wavelength
The invention discloses a metal-semiconductor composite structure, a SPPs excitation method and a preparation method. The structure sequentially comprises a transparent substrate, a multilayer dielectric film positioned on the transparent substrate, a semiconductor nanostructure positioned on the surface of the multilayer dielectric film, a transparent dielectric thin film for covering the semiconductor nanostructure, and a metal thin film positioned on the transparent dielectric thin film; the semiconductor nanostructure is used for forming defect of a nano scale on the surface of the metal thin film, and generating a fluorescence signal to excite the metal SPPs; the transparent substrate and the multi-layer dielectric film form a double-color-mirror substrate, and the double-color mirrorsubstrate is high in laser transmittance and high in fluorescence reflection; and the excitation method comprises the steps that the laser with relatively short wavelength penetrates through the double-color-mirror substrate and then is vertically incident on the semiconductor nanostructure, so as to excite the semiconductor nanostructure to generate a single-photon fluorescence signal with relatively long wavelength, and then the SPPs of the metal film is excited by the fluorescence signal. According to the invention, the excitation efficiency of the SPPs can be improved, and the detection difficulty and the detection cost of the SPPs can be lowered.
Owner:HUAZHONG UNIV OF SCI & TECH
Deep sea shallow arenaceous sediment sampler and sampling method thereof
ActiveCN109556913AEfficient collectionSimple structureWithdrawing sample devicesOcean bottomStructure of the Earth
The invention discloses a deep sea shallow arenaceous sediment sampler and a sampling method thereof. The deep sea shallow arenaceous sediment sampler comprise a vibrating part and a sampling part which are connected with each other through a bolt, and can be separated from each other freely; the vibrating part comprises a hoisting ring, a counterweight and a sealed cabin; a battery, an acceleration sensor, a driving motor and a controller are arranged in the sealed cabin; a top cover of the sampling part is detachable; side walls and the top cover are embedded together; and rigid sheets whichare freely detachable are distributed on the side walls. The rigid sheets can be bent freely when the sampling part is inserted into the seabed, so that the insertion is hardly influenced. During removal of the sampler, the rigid sheets prevent internal arenaceous sediment from sliding downwards. A plurality of pressure relief vents are distributed in the top cover and the side walls of the sampling part in order to ensure constant pressure inside and outside a sampling box. The deep sea shallow arenaceous sediment sampler is simple in structure, and convenient to operate. The number of sidewalls can be increased and reduced as required, and the bottom of a sampling device can be sealed hermetically during removal from the sediment, so that the runoff of loose sediment samples is effectively prevented; the internal and external pressure difference is consistent; the sampling difficulty is lowered; and the sampling efficiency is improved.
Owner:OCEAN UNIV OF CHINA
All-weather meteorological detection system based on unmanned aerial vehicle
InactiveCN106443831AContinuous monitoringReduce the cost of observationTransmission systemsIndication of weather conditions using multiple variablesInductive chargingEngineering
The invention discloses an all-weather meteorological detection system based on an unmanned aerial vehicle. The system comprises an unmanned aerial vehicle detection module and a control center module. The unmanned aerial vehicle detection module comprises the spherical unmanned aerial vehicle, a sonde and a first wireless receiving and transmitting module. The sonde and the first wireless receiving and transmitting module are both carried on the unmanned aerial vehicle. The control center module comprises a second wireless receiving and transmitting module, a control center, a receiving and transmitting bin, a wireless charging device and four positioning beacons. The second wireless receiving and transmitting module, the receiving and transmitting bin, the wireless charging device and the positioning beacons are connected with the control center, the wireless charging device is arranged at the bottom of the receiving and transmitting bin, and the positioning beacons are evenly arranged around the receiving and transmitting bin. The second wireless receiving and transmitting module and the first wireless receiving and transmitting module are in wireless communication. By means of the unmanned automatic taking-off and landing unmanned aerial vehicle, long-term, fixed-point and continuous monitoring of meteorological elements of an atmospheric boundary layer is achieved, traditional sounding balloon observation can be replaced on specific observation occasions, and the observation cost is reduced.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Wave parameter inversion method utilizing high-resolution satellite optical image
ActiveCN111781146AReduce the cost of observationLower acquisition costsMaterial analysis by optical meansSatellite radio beaconingSea wavesSatellite observation
The invention relates to a wave parameter inversion method utilizing a high-resolution satellite optical image, and belongs to the technical field of ocean wave parameter extraction. The method comprises the following steps: step 1, preprocessing an original optical image; step 2, acquiring a gray value above the sea; step 3, segmenting an image window; step 4, image feature enhancement and recognition; step 5, acquiring an energy spectrum; step 6, acquiring a sea wave propagation direction; step 7, obtaining a radial wave number spectrum; step 8, acquiring a main wave length lambda; step 9, calculating a main wave frequency f and a period T; and step 10, obtaining sea wave information: carrying out window sliding to obtain sea wave propagation directions, wavelengths and periods of othersub-windows so as to obtain sea wave information of any area in a satellite observation range. According to the method, a two-dimensional Fourier window segmentation sliding technology is used so thathuman intervention calculation can be avoided, an accurate wave direction is obtained, and information such as wavelength and period can be further obtained.
Owner:THE FIRST INST OF OCEANOGRAPHY SOA
An active sensing device and method based on an unmanned ship
The invention discloses an active sensing device and a method based on an unmanned ship. The device comprises an unmanned ship navigation control unit, a ship-borne laser radar device, a camera calibration unit, a data acquisition and display unit, a data transmission unit, a shore-based server control unit and a shore-based target detection unit. The shore-based target detection unit is used fordetermining the position of the target after detecting the complex water area target; the unmanned ship navigation control unit is used for controlling the unmanned ship to navigate to the vicinity ofa target to be observed;The ship-borne laser radar device is used for detecting a specific position of a target; the camera calibration unit is used for calibrating all the cell groups through the camera. The data acquisition and display unit is used for capturing a clear image of the object; The shore-based server control unit is used for storing the image data collected by the data acquisitionand display unit. The invention can greatly improve the clarity of photographed images and videos.
Owner:WUHAN UNIV OF TECH
Atmosphere boundary layer environment autonomous detecting system of unmanned aerial vehicle and control method thereof
ActiveCN106125755AExpandable and flexibleReduce the cost of observationIndication of weather conditions using multiple variablesAttitude controlControl systemDisplay device
The invention discloses an atmosphere boundary layer environment autonomous detecting system of an unmanned aerial vehicle and a control method thereof. The atmosphere boundary layer environment autonomous detecting system comprises the components of a main controller, an attitude sensor, a wireless communication module, an unmanned aerial vehicle flight control system, an LCD display device, a temperature sensor, a humidity sensor, an air pressure sensor, a carbon dioxide sensor and an SD card. The main controller makes an M100 aerial vehicle perform a flying action according to a preset speed and a preset angle through calling a series of SDK functions. Furthermore in climbing process of the aerial vehicle, the controller acquires data according to a fixed-time manner or a fixed-height manner until a set of complete 0-500m profile measurement is finished, and then the aerial vehicle performs flight returning for landing. The atmosphere boundary layer environment autonomous detecting system of the unmanned aerial vehicle and the control method thereof have advantages of low detection cost, flexible expansion of sensor type, simple and convenient operation, high data precision, high data credibility, etc. The atmosphere boundary layer environment autonomous detecting system can replace two traditional detection manners in 0-500m boundary layer bottom layer environment detection.
Owner:SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
Seabed pore water pressure observation device based on internal solitary waves and working method thereof
ActiveCN111947826AImprove accuracyReduce the cost of observationWaterborne vesselsFluid pressure measurementPore water pressureControl cell
The invention provides a seabed pore water pressure observation device based on internal solitary waves and a working method thereof. The seabed pore water pressure observation device comprises a penetration power system, an observation system and a stabilization system. The penetration power system is composed of a recovery ring, a buoy, a Kevlar cable, a limiting cylinder, a cubic limiting block, a control unit, an annular control cabin, a heavy block and an annular iron block. The observation system is composed of a first pore pressure feeler lever, a pore pressure feeler lever storage unit, a circular-truncated-cone-shaped limiting block, a one-way limiting device, a horizontal supporting rod, a second pore pressure feeler lever, a first penetration conical tip, a pore pressure sensor,a second penetration conical tip and an annular lantern ring.According to the invention, the penetration requirement of the in-situ observation device for seabed pore pressure under the action of internal solitary waves is met; the penetration effect is guaranteed, the energy of the internal solitary waves can be used as a resource, the design and operation cost of the device is reduced, and therequirement for real-time and in-situ observation of pore water pressure changes in a seabed under the action of the internal solitary waves can be met.
Owner:青岛森科特智能仪器有限公司
Small mobile eddy correlation turbulence water and heat fluxes observation system and method
PendingCN110058326AReduce the cost of observationImprove portabilityIndication of weather conditions using multiple variablesHeat fluxRadiometer
The invention provides a small mobile eddy correlation turbulence water and heat fluxes observation system and method. The small mobile eddy correlation turbulence water and heat fluxes observation system is carriedabove a fixed-wing drone andcomprises an onboard 5-hole turbulence probing head, a thermocouple probing pin, a quick response hygrometer, a temperature and humidity sensor, a net radiometer, a photosynthetically active radiometer, an infrared thermometer, a laser altimeter, a GPS-assisted inertial navigation system, a wireless communication module, an input device, an analog / digitalsignal converter, and a data acquisition control computer. The small mobile eddy correlation turbulence water and heat fluxes observation system and method have the advantages that the small mobile eddy correlation turbulence water and heat fluxes observation system is carriedonthe fixed-wing drone and used for direct observation of earth surface turbulence water and heat fluxes at a regional scale, and the advantages of having low observation cost and good portability and flexibility are obtained. The range of the earth surface representable by flux calculation result ofeach turbulence fluxobservation windowscancommonly cover several square kilometers, and the research and application of moderate and coarse resolution remote sensing images and land surface process model grid scale can be sufficiently satisfied.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
Satellite observation method and system
ActiveCN106093943AGuaranteed imaging resolutionObservation swath increasedRadio wave reradiation/reflectionSatellite observationEcho signal
The embodiments of the invention disclose a satellite observation method. The method comprises the following steps: successively receiving echo signals of coverage areas of multiple wave positions, wherein a first interval exists along a distance direction and a second interval exits along an orientation direction between two adjacent wave position coverage areas; according to the echo signals of each wave position coverage area, generating images of each wave position coverage area; and according to the images of each wave position coverage area, obtaining observation information of an observed region. Furthermore, the embodiments of the invention disclose a satellite observation system.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI
Acoustic undersea tide gauge
InactiveCN102853823AEasy to fixSimple structureOpen water surveyMachines/enginesTransducerComputer module
The invention discloses an acoustic undersea tide gauge. The acoustic undersea tide gauge comprises an acoustic measuring unit (1) composed of a hollow column, a transducer, an emission / receiving module, a controller and a battery, an annular substrate (2), and three holding dogs (3). A transverse inner side of the annular substrate (2) is movably connected to an inner ring (5) by a first shaft (4) and is movably connected to the acoustic measuring unit (1) which is arranged vertically and is provided with the transducer on the top of the acoustic measuring unit (1) by a second shaft (6) in the inner ring (5). In the horizontal direction, the first shaft (4) and the second shaft (6) form an angle of 90 degrees. The annular substrate (2) is connected to a marker buoy (8) by a steel rope (7). The acoustic undersea tide gauge does not need a surveying vessel as an auxiliary tool in the whole measurement process and has the advantages of simple structure, lightness, flexibility, easy operation, low observation cost and high precision.
Owner:刘雁春 +2
Levelling staff capable of adjusting observation position and measurement technique thereof
ActiveCN101788285ASatisfy the high requirement of line of sightReduce setup costsHeight/levelling measurementObservation pointLevel staff
The invention discloses a levelling staff capable of adjusting the observation position, which comprises the body of the levelling staff (1) and an auxiliary holding rod, the auxiliary holding rod comprises an upper plate (10), a lower plate (18) and upright rods (15), the upright rods are connected between the upper plate and the lower plate and limit the upper plate and the lower plate, the upper plate is provided with a notch (11), and the lower end surface of the upper plate is provided with an upper contact (13); a lower contact (17) is arranged at the center of the upper end surface of the lower plate, and staff retainers (16) are also arranged around the lower contact on the upper end surface of the lower plate. The invention also discloses a technique using the levelling staff to carry out measurement, which includes steps such as checking the auxiliary holding rod, mounting the levelling staff on the auxiliary holding rod, placing the auxiliary holding rod, measuring, determining the additive constant of the holding rod and processing data. When the position of an observation point is higher than the sight line of a level, the height of the levelling staff can be reduced, and thereby the overall observation cost of a special operation situation is reduced.
Owner:LUOYANG URBAN PLANNING & ARCHITECTURE DESIGN RES INST CO LTD
GPS meteorological sounding meter design method using radio frequency to transmit data
The invention discloses a GPS meteorological sounding meter using a radio frequency to transmit data. The GPS meteorological sounding meter includes a helium balloon and a main body; the main body is hung below the helium balloon; the main body comprises a shell; the shell is internally provided with a circuit board and a battery; a GPS module connected with a GPS antenna, a single-chip microcomputer, a temperature and humidity sensor, and an atmosphere pressure sensor are arranged on the circuit board; a data output end of the GPS module of the GPS antenna is connected to a serial input end of the single-chip microcomputer; the temperature and humidity sensor, the atmosphere pressure sensor are connected with a parallel I / O port of the single-chip microcontroller; a serial output end of the single-chip microcomputer is connected with a wireless data transmission module; the wireless data transmission module is connected with a communication antenna; and the battery is connected with the circuit board by a wire. The helium balloon lifts off and then uses the wireless data transmission module to transmit the meteorological data collected by the temperature and humidity sensor and the atmosphere pressure sensor and the geographic location information collected by the GPS module to the ground information center.
Owner:XIAN TONGYING SOFTWARE TECH VOCATIONAL TRAINING SCHOOL
Seabed sand wave long-term observation device and method applied to internal wave development area
ActiveCN111721575AImprove battery lifeReduce the cost of observationWithdrawing sample devicesMeasuring open water movementSeawaterObservational method
The invention relates to the field of seabed observation, and particularly relates to a seabed sand wave long-term observation device and method applied to an internal wave development area. A supporting mechanism is in the shape of a balance and comprises a gravity anchor, hexagonal rods, an annular instrument control cabin and supporting rods, the gravity anchor is positioned at the bottom of the whole device, the gravity anchor is connected with the annular instrument control cabin above the gravity anchor through a plurality of hexagonal rods, an internal wave energy power generation mechanism is arranged in the annular instrument control cabin, two supporting rods are symmetrically fixed on the outer side of the annular instrument control cabin, one supporting rod is connected with amultifunctional observation rod through a mechanical grabbing ring at the end of the supporting rod, the other supporting rod is connected with a sandy sediment sampling rod through a mechanical grabbing ring at the end of the supporting rod, and the top of the annular instrument control cabin is connected with a subsurface buoy at a seawater boundary layer through a Kevlar cable. Ocean internal wave energy is fully utilized, long-term in-situ observation of seabed sand waves is achieved, the observation result is accurate and reliable, the observation cost is low, and collection and recoveryof seabed sand wave soil samples are achieved.
Owner:OCEAN UNIV OF CHINA
Method for observing TSV (through-silicon-via) copper crystalline grains
The invention relates to the field of microelectronics, and discloses a method for observing TSV (through-silicon-via) copper crystalline grains. In the method disclosed by the invention, a polishing treatment is performed on to-be-observed electroplating copper by virtue of an ion beam; ion etching is performed on the surface of the polished electroplating copper by virtue of an ion beam; the section of the electroplating copper is observed to obtain the size and morphology of the electroplating copper crystalline grains finally. Therefore, the to-be-observed TSV electroplating copper cannot be damaged and stained during the polishing process, and a corrosion effect and an observation effect during a corrosion process for the to-be-observed TSV electroplating copper are improved; meanwhile, the cost of observation equipment is decreased, and the resolution ratio of the observation result is increased.
Owner:FUDAN UNIV
Continuous automatic monitoring device for earth surface deformation in frozen soil area
The invention discloses a continuous automatic monitoring device for earth surface deformation in a frozen soil region, which is applied to the geography and surveying and mapping field. The device comprises the following steps that a deep drill hole in the frozen soil region is selected as a reference point, and the height change of the surrounding earth surface relative to the reference point is measured by using a high-precision linear displacement sensor to obtain natural earth surface deformation; the deformation sensor reflects the displacement amount through an electric signal so that deformation observation can reach higher precision, and an error is as low as 0.01 mm level; the sensor has the characteristics of firmness, durability and high environment adaptability so that long-term monitoring tasks can be well carried out in regions with severe and complicated environments such as frozen soil regions; and data transmission and acquisition communication with the sensor are completed based on the Internet of Things. According to the device, problems of poor deformation monitoring precision, low time resolution and high cost in a frozen soil region in the prior art are solved, and high-precision and high-time-sequence continuous monitoring of surface deformation and automatic data transmission and acquisition are realized.
Owner:NANJING UNIV OF INFORMATION SCI & TECH
Seabed surface layer deformation sliding long-term observation device and method
ActiveCN111780710ARealize in situ long-term observationMeasure the degree of deformationMeasurement devicesSurface layerClassical mechanics
The invention discloses a seabed surface layer deformation sliding long-term observation device and method, and belongs to the technical field of seabed observation. The device comprises a central measuring unit and a plurality of auxiliary measuring units, and quantitative data of seabed surface layer deformation sliding displacement and sliding orientation in a certain area range can be measuredthrough cooperation of the central measuring unit and the auxiliary measuring units. In-situ long-term observation of seabed surface sediment deformation sliding displacement and orientation can be realized, the device has large-range measurement characteristics, and the regional seabed surface sediment deformation sliding process can be measured.
Owner:OCEAN UNIV OF CHINA +1
Automatic observation method of tillering stage of sugarcane
InactiveCN109035209AImprove objectivityStrong timelinessImage enhancementImage analysisComputer scienceObservation method
The invention discloses an automatic observation method for the tillering stage of sugarcane, which comprises the following steps: obtaining a sugarcane image in real time; pre-processing the sugarcane image; extracting the image of a sugarcane plant; calculating the green pixel coverage FVC of the sugarcane plant; calculating the number of the apexes of the sugarcane plant; calculating the numberof leaves and stem crossing points of the sugarcane plant; if the green pixel coverage FVC>=coverage threshold FVCg, the number of apexes of the sugarcane plant>=the threshold of the value of the apexes of the sugarcane plant, and the number of intersections of the leaves and the stem of the sugarcane plant>= the threshold of number of intersections of the leaves and the stem of the sugarcane plant, determining that the sugarcane plants in the sugarcane images will enter the tillering stage. The green pixel coverage of the sugarcane plant, the number of the apexes of the sugarcane plant and the number of the intersecting points of the leaves and stem of the sugarcane plant are calculated by using image recognition technology to finish automatic observation of the tillering stage of sugercane, which has higher objectivity, higher timeliness and practicability than traditional manual observation method, and reduces labor intensity and production cost.
Owner:GUANGXI INST OF METEOROLOGICAL DISASTER REDUCING RES
Unmanned aerial vehicle observation system for monitoring and researching carbon-water flux of regional scale ecosystem
InactiveCN111781308AMeet the needs of observation tasksObservation is flexible and portableAircraft componentsAnalysing gaseous mixturesEcological environmentElectrical battery
The invention provides an unmanned aerial vehicle observation system for monitoring and researching carbon-water flux of a regional scale ecosystem. The unmanned aerial vehicle observation system comprises a fixed-wing unmanned aerial vehicle, scientific observation parts and a ground control monitoring station; the scientific observation parts comprise a porous turbulence probe, an open-circuit water vapor and carbon dioxide gas analyzer, a gas analyzer electronic case, a GPS / INS combined positioning and attitude determination system, an airborne control computer and a power supply battery; the scientific observation parts are all installed on a platform of the fixed-wing unmanned aerial vehicle. According to the invention, observation task requirements of most ecological systems can be met; latent heat flux and carbon dioxide flux exchange capacity of a regional ecological system can be directly observed; the invention has the advantages of low observation cost, strong expansibility,flexible and portable observation and the like, is suitable for multiple aspects such as ecological system function and current situation investigation, ecological process research, ecological environment protection and the like of a large-range space area, and provides important data support for ecological environment research and protection.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
Device and method for in-situ real-time observation of seabed sand waves
ActiveCN107631720BRealize in-situ real-time observationStable and reliable observation resultsOpen water surveyOcean bottomGrating
Owner:OCEAN UNIV OF CHINA
Surface shape measurement device and method based on structured light illumination
InactiveCN108007387AHigh speedReduce the cost of observationUsing optical meansMeasurement deviceBeam splitter
A surface shape measurement device and a method based on structured light illumination belong to the optical microscopic imaging and measurement technology field. The device comprises a structured light illumination module, an axial scanning module and a detection module. An axial scanning device formed by a polarizing beam splitter, a low aperture objective lens, a pipe mirror, a plane reflectingmirror and the like is added in a conventional structured light illumination microscope system so as to realize high speed axial movement of structured light illumination stripes in an observed sample space. Window Fourier transform is used to process images shot under different z direction position stripe projections. A correlation coefficient of each subarea image at a projection stripe frequency is calculated and each horizontal position definition axial response curve is acquired. A peak value position of the curve is a relative height of a sample at a transverse position, and finally a sample surface shape is acquired. The device and the method possesses advantages that installation and adjustment are convenient; an axial scanning speed is fast; and an influence of a sample surface reflectivity difference on a measurement result is small and a signal to noise ratio is high.
Owner:HARBIN INST OF TECH
Image-based automatic detection method of a cane stalk elongating stage and a maize jointing stage
InactiveCN107045719AReduce the cost of observationReduce the difficulty of observationImage enhancementImage analysisImaging FeatureImage based
The invention, which belongs to the technical image of image detection, relates to a detection method, particularly to an image-based automatic detection method of a cane stalk elongating stage and a maize jointing stage. A complete growth period cane crop image and a complete growth period maize crop image are obtained; according to the obtained images, an image normalization exponential time sequence curve is calculated; on the basis of the image normalization exponential time sequence curve, a first-order derivative is calculated, so that time of entrance of a cane stalk elongating stage and a maize jointing stage can be determined based on a changing rule of the first-order derivative of the image normalization exponential time sequence curve. Therefore, the observation cost is lower and the observation difficulty is reduced. Whether the cane enters the stalk elongating stage and the maize enters the jointing stage can be detected automatically based on image features; and the detection result accuracy and practicability are high.
Owner:江苏省无线电科学研究所有限公司
Culture device for classified observation of growth process of biological stem cells in each cycle
InactiveCN113388497AAchieve fixationImprove stabilityBioreactor/fermenter combinationsBiological substance pretreatmentsPetri dishEngineering
The invention provides a culture device for classified observation of the growth process of biological stem cells in each cycle. The culture device comprises an incubator, a threaded rod, a connecting rod and a culture dish, wherein the lower end of the incubator is fixedly connected with an H-shaped supporting plate; a movable cover plate is arranged at the right side of the upper end of the incubator; an observation cylinder is arranged at the left side of the upper end of the incubator; the threaded rod penetrates through the H-shaped supporting plate and is fixedly connected with a hand wheel; the upper end of the connecting rod is fixedly connected with the incubator bottom plate; the lower end of the connecting rod sequentially penetrates through the limiting disc and the rotating rod and is fixedly connected with a driven bevel gear; a liquid conveying pipe is arranged on a side plate of the incubator; and a feeding opening is formed in the upper end of the liquid conveying pipe. According to the device, a sliding plate is arranged in a way of being glidingly clamped in a limiting groove, so that when the culture dish is placed in a groove, the culture dish extrudes a clamping block into the limiting groove, a compression spring is stressed and compressed to apply counter-acting force to the sliding plate, the clamping block at the front end of the sliding plate is tightly attached to the culture dish, and the culture dish is fixed.
Owner:叶鹏超
Automatic observation method for sugarcane process maturing stage
InactiveCN109115771AImprove objectivityStrong timelinessImage enhancementImage analysisUltimate tensile strengthComputer science
The invention discloses an automatic observation method for a sugarcane process maturing stage. The automatic observation method comprises: real-timely obtaining a sugarcane image; pre-treating the sugarcane image; segmenting the sugarcane image, and extracting the sugarcane plant image; calculating the sugarcane plant coverage FVC according to the sugarcane plant image; calculating the ratio G ofthe green pixels in the whole sugarcane plant image to the pixels in the whole sugarcane plant image according to the sugarcane plant image; calculating the ratio Y of the yellow pixels in the wholesugarcane plant image to the pixels in whole sugarcane plant image according to the sugarcane plant image; calculating the growth rate V of the sugarcane plant; and determining whether the sugarcane plant enters a process maturing stage. According to the present invention, the automatic observation method has high objectivity, high timeliness and strong practicability compared to the traditional manual observation method, and further reduces labor intensity and production cost.
Owner:GUANGXI INST OF METEOROLOGICAL DISASTER REDUCING RES
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