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42results about How to "Easy to judge intuitively" patented technology
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422 bus solid-liquid power aircraft flying control testing system
ActiveCN104122885AImprove portabilityMake up for lack of interactivitySimulator controlElectric testing/monitoringFlight testSystem testing
The invention discloses a 422 bus solid-liquid power aircraft flying control testing system. The 422 bus solid-liquid power aircraft flying control testing system comprises a main control testing platform, a portable measurement and control box, a flying control computer, an emulation computer and an interface machine; the main control testing platform provides a human-computer interaction interface and sends a testing command to a flying control computer; the portable measurement and control box outputs the testing command to the flying control computer after performing isolation transferring on the testing command signal to achieve flying control computer power supply, analog acquisition output and switching value signal input and output channel functions; the flying control computer performs sub-system testing and control to perform flying control algorithm resolving and generate into rudder deflection control quantity; the emulation computer simulates the aircraft to perform model real-time resolving; the interface machine perform data fusion and sending. The 422 bus solid-liquid power aircraft flying control testing system can achieve full-system semi-real-object testing, comprehensive monitoring of bus information, real-time storage and display of data, obtains possible conditions during flying to examine in advance and lays foundation for smooth execution of flight tests.
Owner:BEIHANG UNIV
Authorizing method of form field value operating authorization
InactiveCN107315931ATo achieve separate authorizationImprove finenessDigital data protectionNatural language data processingSystems managementComputer science
Owner:CHENGDU QIANNIUCAO INFORMATION TECH CO LTD
Transient disturbance weather map and low-frequency disturbance weather map manufacturing method and application of method in weather report
ActiveCN103383471ANo precipitationEasy to identifyWeather condition predictionICT adaptationWeather mapAtmospheric variable
The invention discloses a transient disturbance weather map and low-frequency disturbance weather map manufacturing method based on atmospheric variable physical decomposition and application of the method in weather forecast. The method includes that formerly observed, recently observed and medium-term numerical weather predication modes are used for output atmospheric space three-dimensional multi-variable and time continuous grid point data, climate components and synoptic scale disturbance components of daily cycle and annual cycle are obtained through physical decomposition, and the synoptic scale disturbance components are used for manufacturing a transient disturbance weather map and a low-frequency disturbance weather map. According to the method, after climate seasonal variation field and day-by-day synoptic scale transient disturbance field physical decomposition is performed on meteorological data of the Northern Hemisphere in the past 30 years, synoptic scale transient disturbance components predicated through the recently observed and medium-term numerical weather predication modes are used for drawing a transient disturbance weather map and a low-frequency disturbance weather map. The transient disturbance weather map is suitable for manufacturing 1 to 3 days short-term weather forecast and 4 to 9 days medium-term weather forecast, the low-frequency disturbance weather map is suitable for manufacturing medium-term and 10 to 30 days elongating stage weather process forecast. A novel tool for weather forecast is provided, and accuracy of the weather forecast can be improved.
Owner:钱维宏
Ultrasonic field non-contact visualization method for nondestructive inspection and device thereof
InactiveCN103713048AImprove detection resolutionHigh bandwidthAnalysing solids using sonic/ultrasonic/infrasonic wavesSonificationHigh bandwidth
The invention relates to an ultrasonic field non-contact visualization method for nondestructive inspection and a device thereof. The method includes the steps: a to-be-detected object is placed in an effective area which can be scanned by a galvanometer scanning head; a detection area of the to-be-detected object is determined; a point on the to-be-detected object is selected as a receiving point for a laser interferometer to receive ultrasonic sound signals; a pulse laser instrument successively emits a pulse laser to each point in the detection area, so as to stimulate an ultrasonic wave at each point, and at the same time, the ultrasonic sound signals are received at the receiving point by the laser interferometer and are stored in a computer; according to a reciprocal theory, all-point sound signals which are transmitted to the detection area through stimulating the receiving point by the pulse laser instrument are obtained; and the each-point sound signal obtained by the computer corresponds to a position in the detection area model. Compared with the prior art, the method breaks through the bottleneck that a traditional ultrasonic probe needs to contact the to-be-detected object, achieves on-site nondestructive inspection, and has the advantages of high detection resolution, high bandwidth, high sensitivity and the like.
Owner:TONGJI UNIV
Autonomous ship navigation remote monitoring method and device based on three-dimensional image
ActiveCN111354226AThe display effect is intuitiveEasy to masterImage analysisMarine craft traffic controlMarine engineering3d image
The invention belongs to the field of ship navigation monitoring, particularly relates to an autonomous ship navigation remote monitoring method and device based on a three-dimensional image, and aimsto solve the problem that an existing method cannot visually display multi-dimensional information, driving state information and early warning information in ship navigation in a single display mode. The method comprises the following steps: receiving dynamic driving information, equipment operation information and environment information sent by a controlled ship; and generating a three-dimensional scene model based on a pre-stored electronic chart and navigation monitoring information, searching a pre-established three-dimensional scene state display mapping relation table, and displayingthe three-dimensional scene model in a state display mode of a three-dimensional scene corresponding to each piece of data in the received information. The three-dimensional scene of ship navigation is constructed, and the visual effect is vivid; dynamic display of various navigation monitoring information is provided, a more visual display effect is brought to an operator, and the operator can conveniently and quickly master ship navigation information.
Owner:智慧航海(青岛)科技有限公司
Adaptive active noise control display system
PendingCN107393524AConducive to promotion and expansion of applicationsFlexible layoutSound producing devicesTransducer circuitsLoudspeakerFrequency noise
The invention relates to the technical field of active noise control, particularly to an adaptive active noise control display system, so that problems that visual displaying of the existing adaptive active noise control technique can not be realized, people can not understand and master the technique conveniently, and people can not determine and sense the noise control effect conveniently are solved. The adaptive active noise control display system is composed of a display rack, a control unit, a primary sound source loudspeaker, a secondary sound source loudspeaker, an error microphone and an LCD touch screen. The control unit controls the primary sound source loudspeaker to send out single-frequency or composite-frequency noises by controlling the key of the LCD touch screen or dial switch selection, thereby forming a primary sound field; the error microphone obtains a noise signal of the primary sound field; the noise signal of the primary sound field and an error sound channel function obtained by identification are analyzed to obtain a secondary sound source signal; and the control unit controls the secondary sound source loudspeaker make sounds to realize adaptive active noise control so as to eliminate the secondary sound field noises. And changes of noises before and after active control implementation are compared visually by observing the touch screen.
Owner:JILIN UNIV
Fundus camera optical system for aligning working positions of human eyes and position aligning method
The invention discloses a fundus camera optical system for aligning working positions of human eyes and a position aligning method. The working principle of an aligning optical path is as follows: one parts of a first light beam and a second light beam which are generated by a double-beam generation device are reflected by a second beam splitter after passing through a first beam splitter, and the reflected parts are incident into the human eye via an eye objective lens after passing through a first diaphragm with a hole; the two light beams are reflected back by the corneal, passes through the eye objective lens and the first diaphragm with the hole and are incident into the second beam splitter and reflected by the second beam splitter to the first beam splitter; a probe is adjusted so that the two light beams are just gathered on an imaging device, and at the moment, the imaging device displays two spots which are overlapped on each other and generated by focusing the two light beams on the imaging device, and then the working position of the vertex of the corneal in a fundus camera is judged according to the two spots overlapped on each other. As the aligning optical path does not comprise a diopter lens, the alignment of the working position is not affected by refractive adjustment, and therefore, even for different human eyes, the vertex of the corneal in the fundus camera is well-determined.
Owner:SHENZHEN CERTAINN TECH CO LTD
Lightning-proof insulator with end metal fitting opening mark structure
ActiveCN105551697AEasy to judge intuitivelyImprove the safety of useInsulatorsEngineeringElectric power
The invention discloses a lightning-proof insulator with an end metal fitting opening mark structure. The lightning-proof insulator comprises an insulator umbrella skirt, a junction metal fitting and a grounding metal fitting; a disconnector is arranged at the bottom of the grounding metal fitting; a metal fitting opening mark structure is arranged at the joint of the insulator umbrella skirt and the grounding metal fitting; the metal fitting opening mark structure comprises a connection bracket and a grounding wire clamp arranged on the connection bracket; a vertical sliding groove is arranged on the outer wall of the insulator umbrella skirt; a movable rolling ball is arranged in the vertical sliding groove; a stress pressure spring is arranged between the movable rolling ball and the vertical sliding groove; a through hole is arranged on the top wall of the vertical sliding groove; a pull rope is arranged in the through hole; a clamping groove is arranged on the surface of the grounding metal fitting; a movable hole is arranged in the middle of the connection bracket; and a disconnection indication lead wire is arranged between each of the two ends of the grounding wire clamp and the disconnector. The lightning-proof insulator disclosed by the invention is simple in structure, good in use stability and convenient for a maintainer to intuitionally judge; therefore, the use safety and reliability of a power grid are greatly improved; and the lightning-proof insulator is good in applicability and high in practicability.
Owner:临海市锐特恩电气有限公司
Breathing mask pad for patient using breathing apparatus and breathing mask
PendingCN107007918AExtended service lifeAvoid boredomRespiratory masksMedical devicesFacial skinAdhesive
The invention relates to a breathing mask pad for a patient using a breathing apparatus and a breathing mask. The breathing mask pad comprises a pad body, the pad body comprises a unidirectional permeable layer, the side, away from the skin, of the unidirectional permeable layer is fixedly provided with a breathable water-absorbing layer, and the breathable water-absorbing layer internally includes a moisture indicating agent. According to the breathing mask pad for the patient using the breathing apparatus and the breathing mask, perspiration on the skin is absorbed by the unidirectional permeable layer, the breathable water-absorbing layer adsorbs the perspiration and is breathable to prevent the skin from being oppressed, the breathing mask pad is attached to the upper portion of the breathing mask to make the facial skin cleaned conveniently.
Owner:湖南百多岁医药科技有限公司
Risk information evaluation method and system thereof
ActiveCN107944745ASolve the problem that the business risk cannot be quantified and evaluatedSolve real-timeWeb data indexingTechnology managementTotal riskSystem matrix
The invention provides a risk information evaluation method and a system thereof. The method comprises the following steps of identifying and classifying risk information, and establishing an inner risk subsystem and an outer risk subsystem; defining a risk factor as a risk calculation factor and performing assignment on each risk calculation factor; establishing an inner risk subsystem matrix andan external risk subsystem matrix, performing direct product calculation on the inner risk subsystem matrix and the external risk subsystem matrix for obtaining a total risk matrix; and analyzing thetotal risk matrix for obtaining evaluation risk conclusion information. According to the method and the system, one calculation evaluation system is utilized; comprehensive real-time calculation andrisk evaluation are performed on all registered enterprises; problems of insufficient artificial calculation efficiency and insufficient calculation capability are settled; and accurate, comprehensiveand real-time enterprise risk evaluation conclusion is supplied for financial, business services and enterprise managers.
Owner:重庆电信系统集成有限公司 +1
Rotary wheel airtightness detecting machine
ActiveUS9562831B2Easy clampingAvoiding severe abrasionDetection of fluid at leakage pointMeasurement of fluid loss/gain rateMachineControl theory
The present invention discloses a rotary wheel airtightness detecting machine which comprises a body frame, an air cylinder, an upper seal, a lower seal, a water tank, an electric motor and a self-made air cylinder, etc. During use, the present invention can make the wheel be automatically centered between the upper seal and the lower seal, avoiding severe abrasion of equipment caused by inclination of the upper pressing plate for sealing upon biased positioning of the wheel.
Owner:CITIC DICASTAL
Detection method of grouting compactness for assembly-type shear wall pipeline
InactiveCN106645407AEasy to fixImprove detection efficiencyAnalysing solids using sonic/ultrasonic/infrasonic wavesProcessing detected response signalFrequency spectrumData acquisition
The invention relates to a detection method of grouting compactness for an assembly-type shear wall pipeline, and belongs to the technical field of the quality inspection of building engineering. The method comprises the following steps: step I, wearing a combined detection apparatus; step II, detecting an impact echo; and step III, measuring the compactness. According to the detection method, elastic wave data is acquired by virtue of a sensor, an equivalent wave velocity is calculated by adopting computing software, and spectral analysis is performed on the obtained equivalent elastic wave velocity of other test points according to the calculated equivalent wave velocity and converted to a color contour map which is convenient to intuitively judge. The detection method is high in field operability, simple in data acquisition, unapparent in response to the signal of metal materials such as steel reinforcing bars and the materials such as plastic pipelines and has clear signal response to the grouting compactness of the pipeline, the analysis can be performed according to the spectral data converted from the equivalent wave velocity, the data signal can be converted to the color contour map for convenience in intuitive display, and the beneficial effect is remarkable.
Owner:ANHUI BUILDING ENG QUALITY SUPERVISION & TESTING STATION
Mechanical type clutch control method and device and vehicle
InactiveCN110925331AEasy to understandAvoid wear and tearClutchesGearing controlClutch controlControl engineering
The invention provides a mechanical type clutch control method and device and a vehicle. The control method comprises the steps that vehicle starting state information and preset starting informationare obtained; when the vehicle starting state information does not conform to the preset starting information, first reminding information for the need for controlling a clutch in a high-gear startingstate is generated; and the first reminding information is sent to a terminal of a user and / or is displayed on a display panel of the vehicle. Whether vehicle starting meets the standards is judged by detecting the vehicle starting state, if not, the reminding information is fed back to the user, and a warning function is achieved. The user can conveniently known whether the starting state of thevehicle meets the standards, thereby starting the vehicle slowly at a low gear according to the reminding information, excessive wear of the clutch is prevented, and service life of the clutch is prolonged.
Owner:LOVOL HEAVY IND CO LTD
Resonance overvoltage eliminating device based on current-sensitive element state monitoring
InactiveCN106208024AIntuitive Fast FerroresonanceUnderstand real-time operating statusEmergency protective arrangements for limiting excess voltage/currentOvervoltageEffect assessment
A resonance overvoltage eliminating device based on current-sensitive element state monitoring comprises a monitor module, a primary resonance eliminator, a secondary resonance eliminating device and an effect evaluation module. The monitor module comprises a parameter determination unit, a state evaluation unit and an early warning unit; a current transformer is arranged in the primary resonance eliminator, and the secondary resonance eliminating device comprises a control unit, a resonance eliminating unit and a display unit. According to the device, an on-line monitoring technique and a resonance eliminating technique are combined to achieve advantage complementary, the efficiency is improved to a greatest extent, and safe and stable operation of equipment is guaranteed.
Owner:STATE GRID CORP OF CHINA +4
Method of displaying image in CT interventional therapy
InactiveCN101229064AReduce riskEasy to judge intuitivelySurgeryComputerised tomographsInterventional therapyControl system
The invention provides an image display method in CT interventional therapy. A monitor is arranged beside a checking table. The monitor is connected with an image control system and at least two rebuilding images are displayed on the monitor. The method firstly sets the arrangement sequence of the image according to the orientation of a patient on the checking table and the position of the monitor opposite to the checking table and then the image control system adjusts the arrangement sequence of the rebuilt image. Adopting the invention can lead the arrangement sequence of the image displayed on the monitor to be consistent to the orientation of the patient on the checking table all the time; consequently the image on the monitor acquired can be convenient for the intuitional judgment of a doctor for one aspect and reduce the danger of the patient for the other aspect.
Owner:SIEMENS SHANGHAI MEDICAL EQUIP LTD
Easy-to-operate method for PDF file thumbnail on webpage
InactiveCN110866374AEasy to judge intuitivelyQuick cullingNatural language data processingExecution for user interfacesProgramming languageGraphics
The invention discloses a method for easily operating a PDF file thumbnail on a webpage. The method comprises the following steps that A, enabling a user to import a PDF file into the webpage; b, converting introduced data stream into a PDF thumbnail; c, sorting and renaming the current PDF thumbnails; and D, selecting certain thumbnails from the operated PDF thumbnails to generate a character string. A required page sequence can be displayed in a graphic mode before the page thumbnail of PDF is stored, and a user can easily and visually judge the page thumbnail. Meanwhile, a PDF page deleting function is added, so that a user can conveniently and quickly remove unnecessary PDF pages. After the arrangement is finished, a string of character combinations can be regenerated according to several thumbnails selected again by the mouse, so that a programmer can code again conveniently. In terms of operation, a mouse is directly used for dragging operation, and wrong input of a PDF page ofspecific operation due to the fact that only numbers are input is avoided. Therefore, the invention has usability and operability, and the working efficiency is greatly improved.
Owner:上海互盾信息科技有限公司
A 422 bus flight control test system for solid-liquid powered aircraft
ActiveCN104122885BImprove portabilityMake up for lack of interactivitySimulator controlElectric testing/monitoringFlight testFly control
The invention discloses a 422 bus solid-liquid power aircraft flying control testing system. The 422 bus solid-liquid power aircraft flying control testing system comprises a main control testing platform, a portable measurement and control box, a flying control computer, an emulation computer and an interface machine; the main control testing platform provides a human-computer interaction interface and sends a testing command to a flying control computer; the portable measurement and control box outputs the testing command to the flying control computer after performing isolation transferring on the testing command signal to achieve flying control computer power supply, analog acquisition output and switching value signal input and output channel functions; the flying control computer performs sub-system testing and control to perform flying control algorithm resolving and generate into rudder deflection control quantity; the emulation computer simulates the aircraft to perform model real-time resolving; the interface machine perform data fusion and sending. The 422 bus solid-liquid power aircraft flying control testing system can achieve full-system semi-real-object testing, comprehensive monitoring of bus information, real-time storage and display of data, obtains possible conditions during flying to examine in advance and lays foundation for smooth execution of flight tests.
Owner:BEIHANG UNIV
Classifying dustbin with sterilizing function
PendingCN110077761AEasy to rollEasy to judge intuitivelyWaste collection and transferRefuse receptaclesEngineeringSolar power
The invention discloses a classifying dustbin with a sterilizing function. The classifying dustbin comprises a recoverable dustbin body and the other dustbin body. A square input opening is formed inthe top end of the other dustbin body. The recoverable dustbin body comprises a recoverable dustbin body box, a second side plate, a first telescopic hinge, a first waste bag shaper, a first rotary shaft, a first rear cover plate, an emitting end circuit, an emitting device, a first storage battery, a first ultraviolet sterilizing module, a first power manager, a second storage battery, a first charging controller and a solar power generating module. A round track input opening is formed in the top end of the recoverable dustbin body. The input opening of the recoverable dustbin body and the input opening of the unrecyclable dustbin body are different in shape, and intuitive judgment of a user is convenient. The two input openings are arranged up and down. The distances between the two input openings and the user are the same, and therefore the influence can be eliminated, and the user cannot throw waste into the dustbin body closer to himself / herself.
Owner:ZHEJIANG SCI-TECH UNIV
An inner circulating cooling and cutting reducer of a horizontal axis roadheader
ActiveCN112460246BIncrease volumeImprove cooling effectGearingGear lubrication/coolingDrive wheelReduction drive
The invention belongs to the technical field of parts and components of underground mining equipment in coal mines, in particular to an internal circulating cooling and cutting reducer of a horizontal axis roadheader. It includes a reducer, a pump in the casing of the reducer, the pump is connected with the pump driven wheel, the pump driven wheel is meshed with the pump power wheel, the pump power wheel and the horizontal axis of the reducer are fixed, and the casing is provided with a lubricating oil channel and The oil pool, the inlet of the lubricating oil channel is provided with a joint I, the outlet of the lubricating oil channel is connected to the high-speed stage of the reducer, the high-speed stage is connected to the oil pool through the gap, the inlet of the lubricating oil channel is connected with the pump through the hose I, and the pump is connected through the soft Pipe II is connected to the oil pool, the outlet of the hose II is provided with a joint II, the lubricating oil is directly connected to the joint I on the casing through the hose I, the pump rotates, and the lubricating oil in the oil pool is sucked into the pump through the hose II and the joint II , flows through hose I, reaches the high-speed lubrication channel, and finally reaches the high-speed bearings and seals.
Owner:TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
A resonant overvoltage elimination device based on the ability to monitor the state of current-sensitive components
InactiveCN106208024BIntuitive Fast FerroresonanceUnderstand real-time operating statusEmergency protective arrangements for limiting excess voltage/currentOvervoltageEffect assessment
Owner:STATE GRID CORP OF CHINA +4
A risk information assessment method and system
ActiveCN107944745BSolve the problem that the business risk cannot be quantified and evaluatedSolve real-timeWeb data indexingTechnology managementTotal riskRisk factor (computing)
Owner:中电智安科技有限公司 +1
A device for detecting engine faults when starting a car
ActiveCN110174272BAchieve shrinkageEasy to storeInternal-combustion engine testingHydraulic cylinderTransmission belt
The invention aims at solving a problem that a fault condition of an engine is not liable to visually judge at present, and discloses an engine fault detection device during automobile starting. The device comprises a connecting rod, a universal rod, a sliding pipe, a sliding frame, a spiral spring, a positioning disc, a positioning rod, a vibration measurer, a contact plate, a first rotating cylinder, a first rotating shaft, a first supporting rod, an ejector rod, a top plate, a conveying belt, a second rotating cylinder, a second rotating shaft, a second supporting rod, a first rotating plate, a third rotating shaft, a rotating rod, a fourth rotating shaft, a first bottom plate, a second rotating plate, a rotating disc, a fifth rotating shaft, a rocking handle, a pulling rope, a supporting plate, a friction layer, a hydraulic cylinder, a sixth rotating shaft, a rotating block and a second bottom plate. According to the device, two front wheels of the device are respectively placed onthe conveying belt through split design of the two bottom plates, and through inclined control of the supporting plate, the condition of the engine can be conveniently detected when the automobile runs on the slope; and furthermore, the device is reasonable in design and easy to operate and conforms to the social needs.
Owner:MILITARY TRANSPORTATION UNIV PLA
High-positioning-precision jig for PCD turning tool blade and using method of high-positioning-precision jig
InactiveCN114290107AEasy to judge intuitivelyFlexible and precise processingMeasurement/indication equipmentsGrinding feed controlStructural engineeringKnife blades
The high-positioning-precision jig comprises a bottom fixing frame, a moving seat, a rectangular supporting column, a lifting cross beam, a clamping and fixing structure, an adjusting structure and a positioning structure, the moving seat is slidably connected to the upper surface of the bottom fixing frame, and the clamping and fixing structure is fixedly mounted on the upper surface of the moving seat; rectangular supporting columns are fixedly connected to the two sides of the bottom fixing frame correspondingly, inner cavities are formed in the rectangular supporting columns, and adjusting structures are installed in the inner cavities of the rectangular supporting columns. The clamping and fixing structure is arranged, a part needing to be machined can be flexibly fixed through the clamping and fixing structure, the position and angle of the part can be flexibly adjusted after fixing, machining is facilitated, the adjusting structure is arranged, the height of a tool can be adjusted through the adjusting structure, and the machining precision is improved. And the cutter is matched with the clamping and fixing structure to grind the part.
Owner:江苏扬碟钻石工具有限公司
An Intuitive Evaluation Method of Fatigue Life of Materials After Laser Shot Peening Treatment
ActiveCN112329242BMeet high requirementsMeet high demanding standardsDesign optimisation/simulationSpecial data processing applicationsCrazingSurface roughness
The invention discloses an intuitive evaluation method for the fatigue life of a material after laser shot peening treatment during service, including the following process: S1, establishing a library file, which records surface microplastic deformation, residual stress, and surface roughness at different stages S2. During the service period of engineering structure materials, the microplastic morphology of the engineering structure surface is detected by surface topography or other surface detection means, and the residual stress and roughness of different service stages are evaluated based on the library files ; S3. Combined with the evaluation results of residual stress and roughness, calculate the crack growth rate at different stages according to the crack growth rate model (a) after laser peening treatment; S4. Evaluate the fatigue life of the material according to the crack growth rate at different stages. The invention has the advantages of intuitive discrimination and easy judgment, can effectively improve the efficiency of reliability evaluation, and meets the high requirements of engineering structural parts.
Owner:NANTONG UNIVERSITY
Visual evaluation method for fatigue life of material subjected to laser peening strengthening treatment
ActiveCN112329242AFatigue life judgmentMeet high requirementsDesign optimisation/simulationSpecial data processing applicationsCrazingSurface roughness
The invention discloses a visual evaluation method for fatigue life of a material subjected to laser peening strengthening treatment in a service process, which comprises the following steps of: S1, establishing a library file in which a corresponding relationship among surface micro-plastic deformation at different stages, residual stress and surface roughness is recorded; s2, during the serviceperiod of the engineering structure material, detecting the micro-plastic morphology of the engineering structure surface through a surface morphology instrument or other surface detection means, andevaluating the residual stress and roughness at different service stages based on the library file; s3, calculating crack propagation rates of different stages according to the crack propagation ratemodel (a) after laser shot blasting treatment in combination with evaluation results of residual stress and roughness; and S4, evaluating the fatigue life of the material according to the crack propagation rates of different stages. The method has the advantages of being visual in judgment, easy to judge and capable of effectively improving the reliability evaluation efficiency, and meets the high-requirement standard of engineering structure parts.
Owner:NANTONG UNIVERSITY
Experimental device and method for simulating progressive failure of aeolian sand stratum in tunnel construction
The invention discloses an experimental device and method for simulating progressive failure of an aeolian sand stratum in tunnel construction. The experimental device comprises a transparent model box and an inflatable model; a reserved tunnel hole penetrating through the front wall and the rear wall of the box is formed in the middle of the model box; the inflatable model is in a cylinder shapeand is the same as a model tunnel in size, and an air valve used for inflating and deflating is arranged at the end of the inflatable model, and the inflatable model is transversely arranged in the model box in a penetrating mode through the reserved tunnel hole; other space in the model box is filled with a model material, closely surrounding the inflatable model, used for simulating the aeoliansand stratum, the model material is particulate matter dyed in a layered mode, and cohesion of the particulate matter approximates to zero; and a camera is arranged at the position, directly facing the reserved tunnel hole, outside the model box and used for recording the change process of the model material after the inflatable model is deflated quickly. According to the experimental device, theinflatable model is used for simulating an aeolian sand tunnel, and excavation of the simulated tunnel can be achieved at a time; the model material is dyed into different colors in the layered mode,the camera is used for recording the process of progressive failure of model surrounding rock, and the rule of progressive failure of the model surrounding rock can be analyzed accurately and completely.
Owner:SOUTHWEST JIAOTONG UNIV +2
Hierarchical clustering-based maintenance order dispatching method, device, equipment and storage medium
PendingCN114037243AImprove the efficiency of repeating similar problemsEasy to judge intuitivelyCharacter and pattern recognitionOffice automationData miningTarget acquisition
The invention discloses a hierarchical clustering-based maintenance order dispatching method, a device, equipment and a storage medium. The method comprises the following steps: dividing a maintenance area into a plurality of sub-areas, and periodically executing the following steps: collecting information of orders which are not dispatched currently; obtaining the number of shared order pairs between any two sub-regions based on the order information; constructing a space sharing graph, taking the sub-regions as vertexes, and taking the number of shared order pairs of the two vertexes as the weight of a connecting edge of the two vertexes; performing clustering in the space shared graph to form a sub-graph set, and in the clustering process, taking the weight accumulation sum of connecting edges in the sub-graph set as large as possible and the weight difference of the connecting edges in the sub-graph set as small as possible as targets; and obtaining position information of the maintenance personnel, and sending order information of the service address in the sub-graph where the maintenance personnel are located to a maintenance personnel terminal. A space sharing graph is constructed, so that order cold and hot sub-regions can be visually judged, order information sent to maintenance personnel is dynamically adjusted, and the time consumed on the way is reduced.
Owner:重庆川南环保科技有限公司
Low-power illuminating system with LED (light-emitting diode) lamps
ActiveCN102413609BReduce energy lossExtended service lifeElectric light circuit arrangementEnergy saving control techniquesLow voltagePower factor
Owner:ANHUI APIG XINHUI OPTOELECTRONICS TECH
IRIG-B direct current code decoding and time synchronization automatic switching method based on FPGA
ActiveCN113791533ARealize automatic switchingAccurate timingSynchronous motors for clocksCode conversionCoding decodingEngineering
The invention relates to an IRIG-B direct current code decoding and time synchronization automatic switching method based on an FPGA, and the method employs an FPGA chip to construct a starting sequence of a preset mode, a time synchronization mode and a timing mode, and achieves the automatic switching among the preset mode, the time synchronization mode and the timing mode. According to the invention, accurate timing can be carried out on the basis of set time and the time of a correction clock can be automatically switched when external time is corrected, accurate timing can be continued on the basis of the time when the external time is corrected and the clock is stopped, second, minute, hour and day are decoded to obtain time signals of month, day, hour, minute, second and the like, and the time signals are output in the form of a serial port at the same time. The updating frequency is 1s, so that whether the time is correct or not can be conveniently and intuitively judged. The FPGA chip is mainly used as a main control chip, code portability is high, and implementation is easy.
Owner:TIANJIN NAVIGATION INSTR RES INST
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