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Method for calculating pressure of passive lateral rocks for jointed rocks on outwardly-inclined bedding slope
ActiveCN106547942AReliable data referenceAccurate Data ReferenceDesign optimisation/simulationSpecial data processing applicationsSoil mechanicsEngineering
The invention relates to a method for calculating pressure of passive lateral rocks for jointed rocks on an outwardly-inclined bedding slope, pertaining to the technical field of rock pressure analyses in rock and soil mechanics. The method comprises following steps: dispersing bedding joint rocks based on joint surfaces into rigid rocks in a definite number by taking jointed rocks on the outwardly-inclined bedding slope as an object of study; taking pressure of passive lateral rocks as an objective function and shearing force and normal force of joint surfaces as unknown quantities based on a Pan Jiazheng maximum principle to create an equilibrium equation satisfying damaged rocks, yield conditions of joint surfaces, and yield conditions of contact surfaces for rocks and supporting structures; and solving them to obtain the maximum limit value for passive lateral rocks for jointed rocks the an outwardly-inclined bedding slope. The method for calculating pressure of passive lateral rocks for jointed rocks on the outwardly-inclined bedding slope has following beneficial effects: the method is accurate in concept, high in calculation precision, and easy and convenient in engineering application and can be applied to design of structures for retaining walls on jointed rock slopes, slide-resistant piles and pile-anchor supports.
Owner:KUNMING UNIV OF SCI & TECH
Method for on-line monitoring of load current of GIS bus of substation
ActiveCN103995172AGuaranteed uptimeImprove reliabilityCurrent/voltage measurementElectric power systemState parameter
The invention provides a method for on-line monitoring of a load current of a GIS bus of a substation. The method comprises the steps that a distribution diagram of GIS device intervals is drawn according to site layout information of a GIS of the substation, and the GIS bus is sectioned according to the distribution diagram and the actual physical information of the substation; the load current of each line and the quantity of states of switches and disconnecting links of the substation are obtained from an EMS system; the load current of each subsection of the GIS bus is calculated according to the Kirchhoff law, the load currents and the quantity of states; on-line monitoring is conducted on the GIS bus according to the load current of each subsection of the GIS bus of the substation. According to the technical scheme, real-time on-line monitoring of the load current of each subsection of the GIS bus of the substation is achieved, more direct state parameters in the GIS operation process are obtained, more reliable data reference is provided for infrared detection and GIS tests, stable operation of the GIS device is guaranteed, and the reliability of power supply of the power system is improved.
Owner:FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
System and method of testing high-voltage circuit breaker
InactiveCN105589030AImprove reliabilityGuaranteed uptimeCircuit interrupters testingCurrent sensorData acquisition
The present invention discloses a system and method of testing a high-voltage circuit breaker. The system comprises a speed measurement sensor, a distance measurement sensor, a current sensor, a data acquisition and processing system and an industrial control computer. The insulation characteristics, the electrical characteristics and the mechanical characteristics, measured by the speed measurement sensor, the distance measurement sensor and the current sensor, of a high-voltage circuit breaker are sent to the industrial control computer through the data acquisition and processing system; the insulation characteristics are the leakage current and the insulation resistor of the high-voltage circuit breaker; the electrical characteristics are the opening and closing current and the measurement current; and the mechanical characteristics are the total motion time, the motion amount and the motion merge-joint direction of the high-voltage circuit breaker, and the accelerated speed, the acceleration time, the uniform motion speed, the uniform motion time, the deceleration process of the motion, the overshoot of the motion and the overshoot time when the motion starts. The system and method of testing a high-voltage circuit breaker are able to discover an abnormal state and predicate a fault period at the early state of the fault so as to fully make a service preparation and provide a technology basis for reasonably making the maintenance plan of a device, therefore the operation reliability of the power grid is improved.
Owner:JINZHOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +1
Noise equivalent temperature difference test method and system of infrared thermal imager
ActiveCN110095193AAccurate measurementAccurately reflectRadiation pyrometrySignal responseThermodynamics
The invention provides a noise equivalent temperature difference test method and system of an infrared thermal imager, and belongs to the technical field of optical detection. A blackbody temperaturedifference scope is set according to the dynamic range of the infrared thermal imager, at least two temperature points are selected in the blackbody temperature difference scope, signal response dataof a calculation area including the temperature points with the blackbody temperature difference scope is collected after that the temperature is table and a mean value is calculated, a mean value andtemperature difference curve is drafted according to the signal response data, a curve gradient, namely the responsivity value, is fit by a least square method, and the noise equivalent temperature difference (NETD) of the infrared thermal imager is obtained according to the responsivity value and test noise. Thus, the NETD of an infrared product is measured accurately, the real NETD level of theinfrared product is reflected more accurately, a unified NETD test system platform is formed, and real and reliable data reference is provided for test aimed at knowing the real situation at the early stage of bidding.
Owner:WUHAN GAOXIN TECH
Method for calculating flow of mudslide behind dam and application thereof
ActiveCN107423484AGuarantee the effect of disaster prevention and mitigationAccurate calculationGeometric CADClimate change adaptationStress factorComputer science
The invention discloses a method for calculating flow of mudslide behind a dam and application thereof, belonging to the field of mudslide prevention and control projects. The method comprises the following steps of a. obtaining incoming mudslide total W and mudslide peak flow Q through hydrologic calculation, and investigating on the side to determine a storage capacity C of the dam, a yield stress Tau of the mudslide, a volume weight Rho of the mudslide and a characteristic particle size D<90> of mudslide; and b. calculating the flow Q of mudslide behind the dam according to the incoming mudslide total W, the mudslide peak flow Q, the storage capacity C of the dam, the yield stress Tau of the mudslide, the volume weight Rho of the mudslide, the characteristic particle size D<90> of mudslide, and a dimensionless yield stress factor Tau*. The method is applicable to outdoor large scale actual calculation, can calculate the flow of the mudslide behind the dam accurately, provides reliable data reference for the mudslide prevention and control project, and ensures disaster prevention and mitigation effects in mudslide regions.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
Method and equipment for monitoring fall damage of farm houses in earthquake stricken area
InactiveCN105279199ASolve the problem of downfallTimely resultsSpecial data processing applicationsSensing dataDisaster area
The invention discloses a method and equipment for monitoring fall damage of farm houses in an earthquake stricken area. The method comprises the following steps of identifying house structures of the farm houses according to remote-sensing images before the disaster; dividing the farm houses with the same house structure in the same seismic intensity area into the same block; interpreting remote-sensing images after the disaster and determining a first ratio of the farm houses of different damage types in each block according to an interpreted result; determining a second ratio of the farm houses of different damage types in each block according to survey data of a disaster scene; and determining a final ratio of the farm houses of different damage types in each block according to the first ratio and the second ratio. According to the method and the equipment, the damage condition of the farm houses in the disaster area can be more objectively and accurately mastered, and the damage condition of the farm houses in the whole disaster area can be mastered by utilizing the incomplete remote-sensing data especially under the condition that the remote-sensing data cannot cover the whole disaster area.
Owner:MIN OF CIVIL AFFAIRS NAT DISASTER REDUCTION CENT +1
Study monitoring system based on myopic glasses
InactiveCN110623631ATimely reminder of safe distancePrevent myopiaDiagnostic recording/measuringSensorsFeature extractionComputer module
The invention discloses a study monitoring system based on myopic glasses. The study monitoring system based on myopic glasses comprises a study monitoring terminal and a service analysis terminal, wherein the study monitoring terminal and the service analysis terminal are connected through a wireless communication network; the service analysis terminal comprises a data preprocessing module, a screening obtaining module, a feature extraction module, a management server, a feature database and a display module; the data preprocessing module is respectively connected with the screening obtainingmodule and the feature extraction module; and the management server is respectively connected with the screening obtaining module, the feature extraction module, the feature database and the displaymodule. The study monitoring system based on myopic glasses can remind a wearer of a safe distance from the eyes to a desktop so as to protect the eyesight; a sitting posture normalization evaluationcoefficient and a study state conformity coefficient of the wearer in a wearing duration can be evaluated; the sitting posture and the study state of the wearer are intuitively shown; the monitoring management on the study process of the wearer is realized; and the characteristic of high detection accuracy is realized.
Owner:刘靖哲
Calibration device and calibration method of fiber bragg grating water-soil boundary sensing probe
ActiveCN103308124ASimple structureMaterials are readily availableTesting/calibration apparatusGratingFiber Bragg grating
The invention discloses a calibration device and a calibration method of a fiber bragg grating water-soil boundary sensing probe. The calibration device comprises a water pressure calibration device and a water-soil pressure calibration device, wherein the water pressure calibration device comprises a first transparent water tank, a first ruler, a first sensing probe and a support; the first transparent water tank is of a U-shaped structure; a first hole is formed in the bottom of the first transparent water tank; the first ruler is vertically arranged on an inner wall on one side of the first transparent water tank; the first sensing probe is embedded into the first hole in the bottom of the first transparent water tank; the support is arranged on two sides at the outer end of the bottom of the first transparent water tank; the water-soil pressure calibration device comprises a second transparent water tank, a second ruler, a second sensing probe and a partition plate; the second transparent water tank is of a U-shaped structure; the second ruler is vertically arranged on an inner wall on one side of the second transparent water tank; the partition plate is vertically arranged inside the second transparent water tank; a second hole is formed in the partition plate; and the second sensing probe is embedded into the second hole. The calibration device is simple in structure and capable of calibrating precisely.
Owner:JIANGSU PROVINCIAL COMM PLANNING & DESIGN INST
Automatic identification system for outdoor advertising medium angle tilt and offset
InactiveCN110132214AMonitor drift in real timeReal-time monitor tilt statusMeasurement devicesData acquisitionNetwork communication
The invention relates to an automatic identification system for outdoor advertising medium angle tilt and offset, and the system adopts the following hardware facilities including a gravity center sensing terminal, a cloud server and an alarm receiving terminal, wherein the gravity center sensing terminal is composed of a tilt angle sensor module and a mobile network communication module; the tiltangle sensor module integrates data acquisition and record of dynamic acceleration and static acceleration, and collects and uploads the change values of the accelerations on the three X, Y and Z axes of the monitored billboards; the mobile network communication module uploads the data to the cloud server in real time for storage and recording; and the cloud server compares the transmitted data with the initially recorded tilt angle data of the initial position to generate angle tilt distribution models of the installing position of the monitored billboard, compares and analyzes with the deviation value with the initial data, and sends an alarm to the alarm receiving terminal. The automatic identification system for outdoor advertising medium angle tilt and offset can monitor the offset and tilt condition of outdoor billboards in real time, and eliminate potential safety hazards.
Owner:广东博媒广告传播有限公司
Adjustable foot-shaped scanner
ActiveCN106377014AGain advantageEasy to develop and designFoot measurement devicesDiagnostic recording/measuringMan machineFoot supports
The invention relates to an adjustable foot-shaped scanner. The technical scheme is that the adjustable foot-shaped scanner comprises a shell part, a scanner rotating part, a scanner machine head and a controller part, wherein the shell part is provided with a sectional foot support part and a heel height adjusting part; the outer side of the shell part is connected with the scanner machine head through the scanner rotating part so as to rotationally scan the sectional foot support part. According to the adjustable foot-shaped scanner disclosed by the invention, foot shapes, especially, deformation generated under the situation that the body weight is borne by feet, in various status can be scanned, so that scanned foot shape data accord more with an actual situation; compared with a common scanner and a foot-shaped scanner which can just stand horizontally, the adjustable foot-shaped scanner has the obvious advantage in respect of obtaining foot shape data; reliable data are provided for subsequently utilizing the foot shape data, convenience is provided for development design and manufacturing of shoemaking industry, and more reliable data reference can be provided for the fields of medical foot shape correction, man-machine engineering foot shape statistics, human body foot research and the like.
Owner:郑士超
Minimally invasive scalpel for urinary surgery and control method thereof
ActiveCN110584772AEasy to graspImprove stabilitySurgical navigation systemsEndoscopesLess invasive surgeryPower flow
The invention belongs to the technical field of medical instruments, and discloses a minimally invasive scalpel for urinary surgery and a control method thereof. A hollow supporting rod is welded to the right end of a telescopic handle, a supporting rod is welded to the right end of the hollow supporting rod, an oval stirring protruding point is fixed to the upper end of the supporting rod througha screw, a camera is embedded in the oval stirring protruding point, and the lower end of the supporting rod is connected to a cutting disc through a connecting rod; and the telescopic handle is provided with a telescopic outer cylinder, a telescopic inner rod is sleeved by the telescopic outer cylinder, a through hole is formed in the telescopic outer cylinder, a groove is formed in the telescopic inner rod, the bottom of the groove is connected to a clamping block through a spring, and the clamping block is clamped in the through hole. The scalpel is provided with the telescopic handle, sothat the length of the telescopic handle can be adjusted according to the size of the palm of a doctor, the handle is convenient to grasp, and the operation stability is improved; and the scalpel is provided with a current sensor, so that the current on electric wires is detected in the burning and cutting process of focus tissues, and reliable data reference is provided for burning and cutting the focus tissues.
Owner:QINGDAO MUNICIPAL HOSPITAL
Drinking water filtering device
InactiveCN110937737AAvoid filteringFully filteredWater treatment parameter controlWater/sewage treatment by irradiationPotable waterWater filter
The invention belongs to the technical field of drinking water production and discloses a drinking water filtering device including: a water inlet, of which the lower end is connected to a central pipe; the lower end of the central pipe is connected with a lid through glue; a packing column is connected to the lower end of the lid; a first filtering unit is arranged on the upper end in the packingcolumn and is connected to the lid through glue; a second filtering unit is fixed to the lower end in the packing column through a bolt, wherein the bottom of the second filtering unit is fixed to awater distributing plate; an end lid is connected to the packing column internally; a water outlet hole is fixed to one side surface; an aeration pipe is fixed to the center of the bottom. The first filtering unit includes a water outlet hole and a first filtering core; the second filtering unit includes a second filtering core. The device has simple structure and only employs two filtering units,is convenient to detach and low in production cost, can ensure complete and uniform filtration of water, and can avoid excessive single water flow and insufficient filtration thereby.
Owner:赵世航
Threshold setting method and device in spectral similarity matching classification
PendingCN112418314AImprove regulation efficiencyImprove practicalityCharacter and pattern recognitionAlgorithmThresholding
The invention belongs to the technical field of image data processing, and particularly relates to a threshold setting method and device in spectral similarity matching classification, and the methodcomprises the steps: obtaining a target region of interest selected from a hyperspectral image of a pre-selected object; calculating an actual similarity value between the spectral data of each pixelin the target region of interest and standard spectral data of each category in a preset spectral library; calculating a mean value and a variance of each actual similarity value; and obtaining the following threshold setting range according to the mean value and the variance of each actual similarity value. According to the method and device, reliable data reference is provided for threshold setting according to the mean value and the variance, threshold adjusting efficiency is improved, useless and irrelevant threshold setting steps are filtered out, the threshold setting process is simplified, classification efficiency is improved, and extremely high practicability is achieved.
Owner:GUANGDONG GONGYE TECH CO LTD
System and method for online indirect measurement of pitch and yaw moment of wind energy or tidal current energy generator set
ActiveCN114458516AAvoid difficultyLow costHydro energy generationMachines/enginesMotor speedImpeller
The invention discloses an online indirect measurement system and method for pitch and yaw moment of a wind energy or tidal current energy generator set. Comprising an incoming flow velocity measurement module, a generator rotation speed measurement module, a pitch angle measurement module and a computer. The incoming flow velocity measurement module measures the flow velocity at the center of the impeller; the generator rotating speed measurement module measures the generator rotating speed; the pitch angle measuring module measures the pitch angle of each blade; and the computer receives the flow velocity, the rotating speed and the pitch angle signals, obtains the pitching moment and the yawing moment of the generator set through online calculation, and displays and stores the measured and calculated data in real time. According to the invention, reliable pitching and yawing moment online measurement of the generator set is realized, key data is provided for real-time operation state monitoring and active load control of the generator set, the safety and reliability of whole machine operation are improved, reliable data reference is provided for the optimization design process of the generator set, and the design cost of the generator set is reduced; the measurement system and method are low in implementation difficulty, low in cost and high in reliability.
Owner:ZHEJIANG UNIV
Indoor gyratory compaction test method for MOH semi-flexible materials
InactiveCN106644624AReliable data referenceImprove compactnessPreparing sample for investigationVoid ratioMixed materials
The invention discloses an indoor gyratory compaction test method for MOH semi-flexible materials. A mixed material comprises, by mass, 1 part of mineral aggregate, 0.01-0.03 part of cement, 0.0218-0.0396 part of water and 0.0804-0.0982 part of emulsified asphalt and is obtained by means of manual cold mixing, mixing time is controlled within 2 minutes, and a perforated test mould is filled with the mixed material for gyratory compaction. The indoor gyratory compaction test method for the MOH semi-flexible materials has the advantages that through a rubbing method, a test piece is subjected to gyratory compaction under three main technical conditions including a constant vertical pressure, a constant compaction angle and a specified compaction rotation speed, aggregate of a formed test piece can be hardly broken into pieces basically, and grading schemes are judged comprehensively through two indexes including void ratio and compressive strength.
Owner:CHANGAN UNIV
Flue gas waste heat recovery system and method for air pollution control
InactiveCN110201467ACompact structureSimple structureHuman health protectionGas treatmentActivated carbonSurface layer
The invention belongs to the technical field of flue gas waste heat recovery, and discloses a flue gas waste heat recovery system and method for air pollution control. A water tank is installed at thetop of a case body, and a pressure gauge and a temperature gauge are arranged at the two sides of the water tank respectively and used for monitoring the change conditions of the pressure and temperature in the water tank in real time; meanwhile, a water inlet valve and a water outlet valve are installed at the outer portion of the water tank, and the water inlet valve is connected with a water inlet pipe. The water inlet valve and the water outlet valve are connected with the water tank through pipeline through rings. An activated carbon filtering net layer and a drawer-type filtering surface layer are laid in a filtering device in the case body and can effectively adsorb small solid particles or sulfur dioxide and other gas in waste flue gas and improve the working efficiency. The pipeline through rings between the water inlet valve and the water outlet valve can activate water molecules, prevent the formation of scales and reduce the water corrosion to pipelines. Two symmetrical bases are installed at the bottom of the case body to achieve a symmetric effect.
Owner:JILIN JIANZHU UNIVERSITY
Hydrological service operation method and device, computer equipment and storage medium
PendingCN112541306AHigh precisionGuaranteed normal executionDesign optimisation/simulationRainoutComputer device
The embodiment of the invention provides a hydrological service operation method and device, computer equipment and a storage medium. The method comprises the steps of obtaining hydrological and meteorological data of all areas in a preset drainage basin; calculating efficiency coefficients of water vapor between the air and the ground in the area according to the hydrometeorological data; calculating the distance between an effective rainfall layer and the ground in the area according to the hydrometeorological data; calculating a dynamic coefficient of condensing water vapor into a cloud layer in the area according to the hydrometeorological data; calculating a target value representing the artificial precipitation potential according to an efficiency coefficient, the distance and a dynamic coefficient; and executing hydrological service operation according to the target value. Three factors of conversion of water vapor between air and ground, different distances between an effectivelayer of the water vapor in the air and the ground and power required for forming cloud by the water vapor to cause rain are coupled, so that the accuracy of a target value for representing the artificial precipitation potential is improved, the operability of hydrological service based on the target value is enhanced, and more reliable data reference is provided for hydrological service operation.
Owner:TSINGHUA UNIV +1
On-line Monitoring Method of Substation GIS Bus Load Current
ActiveCN103995172BGuaranteed uptimeImprove reliabilityCurrent/voltage measurementElectric power systemState parameter
The invention provides a method for on-line monitoring of a load current of a GIS bus of a substation. The method comprises the steps that a distribution diagram of GIS device intervals is drawn according to site layout information of a GIS of the substation, and the GIS bus is sectioned according to the distribution diagram and the actual physical information of the substation; the load current of each line and the quantity of states of switches and disconnecting links of the substation are obtained from an EMS system; the load current of each subsection of the GIS bus is calculated according to the Kirchhoff law, the load currents and the quantity of states; on-line monitoring is conducted on the GIS bus according to the load current of each subsection of the GIS bus of the substation. According to the technical scheme, real-time on-line monitoring of the load current of each subsection of the GIS bus of the substation is achieved, more direct state parameters in the GIS operation process are obtained, more reliable data reference is provided for infrared detection and GIS tests, stable operation of the GIS device is guaranteed, and the reliability of power supply of the power system is improved.
Owner:FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
A method for measuring and warning the working distance of a crane lifting vehicle near potential
ActiveCN105301596BRealize distance measurement without dead angleReliable data referenceTransmission systemsAcoustic wave reradiationUltrasonic sensorCharged body
The invention belongs to the fields of high-voltage live-line safe work construction safety monitoring and wireless communication, and discloses a distance measuring and alarming method for potential approaching work of a crane lifting car. The method is characterized in that based on distance measurement, information wireless transmission and data fusion, the real-time accurate measurement of the distance from construction personnel and equipment to a charged body and safety alarming are realized, accidents such as an electric shock caused by close contact with the charged body are prevented, serious safety accidents such as property loss and personnel casualties are prevented, the level of construction safety is simultaneously increased, the maintenance efficiency is substantially improved, and the construction safety is enhanced. The distance measuring and alarming method for the potential approaching work of the crane lifting car is used for high-voltage live-line safe work construction safety monitoring, and measurement without blind angles is realized by multi-angle ultrasonic sensors; a WiFi hot spot wireless network is flexibly installed; in addition, a control room can obtain construction on-site information at any time, a distance measuring and safety alarming system is formed, and the safety distance measuring problem of high-voltage live-line safe work construction is fundamentally solved.
Owner:STATE GRID HUBEI ELECTRIC POWER CO LTD MAINTENANCE CO
Leg exercising device for cheerleading dancing and control method of leg exercising device
InactiveCN112675493AComprehensive detection of running statusImprove accuracyPhysical therapies and activitiesMedical simulationMotor speedHuman body
The invention belongs to the technical field of leg training, and discloses a leg exercising device for cheerleading dancing and a control method of the leg exercise device. The leg exercising device comprises a lifting tension detection module, a position detection module, a motor rotating speed detection module, a man-machine interaction module, a display module, a central control module, a signal transmission module, a cloud service module, a leg exercising simulation module, a human body state analysis module, a leg training adjustment module and a vibratory massage module. By means of the lifting tension detection module, the position detection module and the motor rotating speed detection module, the running state of the training device can be comprehensively detected, and the leg exercising accuracy and quality are improved; and intelligent control is achieved through the man-machine interaction module and the multiple integrated devices. Through the cloud service module, the big data processing technology is used for processing and analyzing the data, and the data processing efficiency is improved.
Owner:JISHOU UNIVERSITY
Bearing capacity load test system and method for rock slope foundation
ActiveCN113235671AImprove accuracyReliable data referenceClimate change adaptationFoundation testingStructural engineeringCloud storage
The invention belongs to the technical field of rock slope foundation selection, and discloses a bearing capacity load test system and method for a rock slope foundation. The bearing capacity load test system for the rock slope foundation comprises a rock foundation test selection module, a rock foundation punching module, a stress area detection module, a tension detection module, a display module, a central processing module, a wireless signal receiving and transmitting module, a mobile terminal, a bearing capacity curve drawing module, a bearing capacity evaluation module, a cloud storage module and a big data processing module. According to the bearing capacity load test system, the big data processing module transmits the data detected by the whole system to the network for big data processing, so that the accuracy of the bearing capacity load test of the rock slope foundation is improved, and reliable data reference is provided for selection of the rock slope foundation; and meanwhile, the system is connected with the mobile terminal through the wireless signal receiving and transmitting module, data of the rock foundation test system are transmitted to the mobile terminal, and remote monitoring and control are achieved.
Owner:SOUTHWESTERN ARCHITECTURAL DESIGN INST
Hydrothermal uranium ore deep detection method and system
InactiveCN111399025AAvoid errorsSimple and fast operationMaterial analysis using wave/particle radiationDosimetersMining engineeringRadon gas
The invention belongs to the technical field of uranium ore deep detection, and discloses a hydrothermal type uranium ore deep detection method and system, and the method comprises the steps: a uranium ore detection module obtaining the uranium ore information under the earth surface through detecting the content of radon gas; meanwhile, the depth measurement module performing electromagnetic measurement on the uranium ore depth through an electromagnetic instrument; collecting a corresponding uranium ore according to the obtained uranium ore related information; identifying the uranium ore through identification equipment in the uranium ore identification module; according to the uranium ore identification information, determining the formation age of the uranium ore through determinationequipment in a determination module; and evaluating the uranium ore quality through an evaluation program in a uranium ore quality evaluation module according to the measured related information. Themethod has no complex sample preparation process, avoids errors in the preparation process, and has the analysis advantages of simplicity and convenience in operation, short determination time, highsensitivity and the like.
Owner:EAST CHINA UNIV OF TECH
Automobile radar test tool and test method thereof
InactiveCN114384546AFast testImprove precise controlElectromagnetic wave reradiationRadarEngineering
The invention provides an automobile radar test tool and a test method thereof.The automobile radar test tool comprises a base, a door frame, a mounting plate, a sliding block and a plate clamp and further comprises a first laser tube, a second laser tube and a third laser tube, the first laser tube is mounted below the rear end of the mounting plate through a right-angle support, the first laser tube is parallel to the mounting plate, and the second laser tube is parallel to the third laser tube; the second laser tube is installed on the left side face of the sliding block through a right-angle support and is perpendicular to the lower end face of the sliding block, and the third laser tube is installed on the plate clamp through a right-angle support and is parallel to the front end face of the plate clamp. The radar can be automatically driven to rotate in the horizontal direction and the vertical direction according to the control instruction, the testing speed of the radar can be greatly increased, meanwhile, accurate control over the measurement angle is improved, more accurate data can be obtained, and reliable data reference is provided for debugging of the radar by technicians.
Owner:合肥楚航科技发展有限公司
Calibration method of fiber grating water-soil interface sensor probe
ActiveCN103308124BSimple structureMaterials are readily availableTesting/calibration apparatusGratingWater pressure
The invention discloses a calibration device and a calibration method of a fiber bragg grating water-soil boundary sensing probe. The calibration device comprises a water pressure calibration device and a water-soil pressure calibration device, wherein the water pressure calibration device comprises a first transparent water tank, a first ruler, a first sensing probe and a support; the first transparent water tank is of a U-shaped structure; a first hole is formed in the bottom of the first transparent water tank; the first ruler is vertically arranged on an inner wall on one side of the first transparent water tank; the first sensing probe is embedded into the first hole in the bottom of the first transparent water tank; the support is arranged on two sides at the outer end of the bottom of the first transparent water tank; the water-soil pressure calibration device comprises a second transparent water tank, a second ruler, a second sensing probe and a partition plate; the second transparent water tank is of a U-shaped structure; the second ruler is vertically arranged on an inner wall on one side of the second transparent water tank; the partition plate is vertically arranged inside the second transparent water tank; a second hole is formed in the partition plate; and the second sensing probe is embedded into the second hole. The calibration device is simple in structure and capable of calibrating precisely.
Owner:JIANGSU PROVINCIAL COMM PLANNING & DESIGN INST
Four-index rapid assessment method for danger of barrier body
ActiveCN113191653AIntuitive risk assessment resultsReliable data referenceClimate change adaptationResourcesEnvironmental engineeringReservoir capacity
The invention discloses a four-index rapid assessment method for danger of a barrier body. The method comprises the following steps that: step 1, the reservoir capacity of a barrier lake, the upstream incoming water amount, the material composition of the barrier body and the form of the barrier body serve as four indexes for barrier body danger division, and data of the four indexes are collected respectively; step 2, the reservoir capacity of the barrier lake, the upstream incoming water amount, the material composition of the barrier body and the numerical range of the barrier body form corresponding to different danger levels are set; step 3, according to the numerical value ranges corresponding to different danger levels set in the step 2, the danger levels of the collected data of the reservoir capacity of the barrier lake, the upstream incoming water amount, the material composition of the barrier body and the form of the barrier body are judged respectively, and the assigned values of the danger levels are determined; step 4, based on a weighting algorithm, a barrier body danger comprehensive discrimination value is obtained; and step 5, the danger of the barrier body is evaluated according to the barrier body danger comprehensive judgment value obtained in the step 4. The method has the advantages of comprehensiveness and integrity.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES +1
A Calculation Method for Passive Lateral Rock Pressure of Outwardly Dipping Bedding Jointed Rock Mass
ActiveCN106547942BReliable data referenceAccurate Data ReferenceDesign optimisation/simulationSpecial data processing applicationsSoil mechanicsLimit value
The invention relates to a method for calculating pressure of passive lateral rocks for jointed rocks on an outwardly-inclined bedding slope, pertaining to the technical field of rock pressure analyses in rock and soil mechanics. The method comprises following steps: dispersing bedding joint rocks based on joint surfaces into rigid rocks in a definite number by taking jointed rocks on the outwardly-inclined bedding slope as an object of study; taking pressure of passive lateral rocks as an objective function and shearing force and normal force of joint surfaces as unknown quantities based on a Pan Jiazheng maximum principle to create an equilibrium equation satisfying damaged rocks, yield conditions of joint surfaces, and yield conditions of contact surfaces for rocks and supporting structures; and solving them to obtain the maximum limit value for passive lateral rocks for jointed rocks the an outwardly-inclined bedding slope. The method for calculating pressure of passive lateral rocks for jointed rocks on the outwardly-inclined bedding slope has following beneficial effects: the method is accurate in concept, high in calculation precision, and easy and convenient in engineering application and can be applied to design of structures for retaining walls on jointed rock slopes, slide-resistant piles and pile-anchor supports.
Owner:KUNMING UNIV OF SCI & TECH
A minimally invasive scalpel for urology and its control method
ActiveCN110584772BEasy to graspImprove stabilitySurgical navigation systemsEndoscopesCircular discMinimal invasive surgery
The invention belongs to the technical field of medical devices, and discloses a minimally invasive scalpel for urology and a control method thereof. The right end of the telescopic handle is welded with a hollow strut, the right end of the hollow strut is welded with a support rod, and the upper end of the support rod is fixed with an ellipse Toggle bumps, ellipse toggle bumps are embedded with a camera, the lower end of the support rod is connected to the disc knife through a connecting rod; the telescopic handle is provided with a telescopic outer cylinder, and the telescopic outer cylinder is sleeved with a telescopic inner rod, and the telescopic outer cylinder A through hole is opened on the top, a groove is arranged on the telescopic inner rod, the bottom of the groove is connected with the clamping block through a spring, and the clamping block is clamped in the through hole. The present invention is equipped with a telescopic handle, which can adjust the length of the telescopic handle according to the size of the doctor's palm, which is convenient for grasping the handle and improves the stability of operation; , to detect the magnitude of the current on the wire, and provide reliable data reference for burning and cutting lesion tissue.
Owner:QINGDAO MUNICIPAL HOSPITAL
Real estate sales target automatic setting method and device, server and storage medium
PendingCN111260406AReliable data referenceScientific and reasonable sales tasksMarketingTransaction dataData mining
The invention provides a real estate sales target automatic setting method and device, a server and a storage medium, and the method comprises the steps: obtaining historical transaction data, and generating a state time sequence according to a preset corresponding relation between a transaction volume and a state value; selecting a reference time period; respectively determining lag time betweeneach reference time period and the to-be-predicted time period, and determining an initial state value corresponding to each reference time period; determining transition probabilities of transition from the initial state value to different states according to the time delay, and weights corresponding to the reference time periods respectively; calculating the weighted sum of the transition to thesame state as the final transition probability of the same state; and selecting the state with the maximum final transition probability as a target transition state, determining a set transaction volume corresponding to the target transition state according to a preset corresponding relationship, and setting the sales task volume of the to-be-predicted time period according to the set transactionvolume. The future transaction volume can be effectively predicted, and reliable data reference is provided for developers, so that scientific and reasonable sales tasks are formulated.
Owner:李琦
Bean salt tolerance determination method
PendingCN114720635AExact growth stateAccurately obtain the growth statusTelevision system detailsTransmission systemsCamera moduleData pre-processing
The invention belongs to the technical field of plant salt tolerance determination, and discloses a bean salt tolerance determination method, which comprises the following steps: a bean growth environment detection module detects environmental parameters and soil salinity in a culture box through a detection sensor; meanwhile, the growth state of the beans in each time period is obtained through a camera module; the main control module arranges and stores the data through the controller and coordinates the normal operation of each module; the data preprocessing module preprocesses the acquired data through a data preprocessing program; the execution adjustment module is used for adjusting the bean growth environment in the breeding box by installing temperature, illumination intensity and humidity adjustment equipment in the breeding box; and the data analysis module analyzes the acquired data through a data analysis program to obtain the salt tolerance of the beans. According to the invention, the environmental parameters and soil salinity in the breeding box and the growth state of beans in each time period can be accurately obtained, and a more reliable data reference is provided for a bean salt tolerance experiment.
Owner:曲靖市农业科学院
A method and device for monitoring the collapse of farm buildings in earthquake-stricken areas
InactiveCN105279199BSolve the problem of downfallTimely resultsSpecial data processing applicationsDisaster areaSensing data
The invention discloses a method and equipment for monitoring fall damage of farm houses in an earthquake stricken area. The method comprises the following steps of identifying house structures of the farm houses according to remote-sensing images before the disaster; dividing the farm houses with the same house structure in the same seismic intensity area into the same block; interpreting remote-sensing images after the disaster and determining a first ratio of the farm houses of different damage types in each block according to an interpreted result; determining a second ratio of the farm houses of different damage types in each block according to survey data of a disaster scene; and determining a final ratio of the farm houses of different damage types in each block according to the first ratio and the second ratio. According to the method and the equipment, the damage condition of the farm houses in the disaster area can be more objectively and accurately mastered, and the damage condition of the farm houses in the whole disaster area can be mastered by utilizing the incomplete remote-sensing data especially under the condition that the remote-sensing data cannot cover the whole disaster area.
Owner:MIN OF CIVIL AFFAIRS NAT DISASTER REDUCTION CENT +1
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