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48results about How to "Solve the difficulty of choosing" patented technology
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Eye movement interaction method, system and device based on eye movement tracking technology
ActiveCN111949131ASolve the problem of not being able to accurately locate the targetImprove operational efficiencyInput/output for user-computer interactionSound input/outputOptometryEye tracking on the ISS
The invention belongs to the technical field of eye movement tracking, and discloses an eye movement interaction method, system and device based on eye movement tracking technology, and the method comprises the steps: setting a passive adsorption gaze cursor or an eye movement interaction intention of a sensing area and predicting an active adsorption gaze cursor to select a target; setting corresponding sensing areas, namely effective clicking areas, for different targets, when the cursor makes contact with or covers the sensing area of a certain target, whether eye movement behaviors such aseye tremor exists or not, detecting whether the glancing distance exceeds a threshold value or not at the same time, and absorbing or highlighting then the target object. A machine learning algorithmis adopted to train the eye movement behavior data of the user, the data is filtered, processed and analyzed, an eye movement behavior rule is trained, and a subjective consciousness eye movement interaction intention model of the user is obtained. Through the method, the stability and accuracy in the eye movement interaction process are improved, and the user experience of eye movement interaction is improved.
Owner:陈涛
Intelligent audio-video selection method
InactiveCN104796481AImprove driving safetySolve the difficulty of choosingTransmissionSpecial data processing applicationsDriving safetyDriver Distractions
The invention discloses an intelligent audio-video selection method and relates to the field of vehicle-mounted and mobile terminals. According to the method, geographical location information of a user is acquired according to location information of the user, detailed scenes of the place where the user is located are analyzed, audio and video files belonging to scene types of the user are actively recommended to the user, the corresponding audio and video files are regulated automatically according to feedback of the user, and listening and watching habits of the user are adapted and matched automatically, so that the problem of difficulty in selecting from massive audio and video resources by the user is solved, meanwhile the problem of driver distraction caused by manual regulation and audio-video change in the driving process is solved, and driving safety is improved.
Owner:孙岳铮
Unsupervised image division method based on multi-target immune cluster integration
InactiveCN101847263AThe amount of computing data is smallComprehensive evaluation indicatorsImage analysisGenetic modelsFeature vectorTest sample
The invention discloses an unsupervised image division method based on a multi-target immune cluster integration technology, which mainly solves the problems of poor global optimization capability, single evaluation index, single division scheme form and difficult selection of a plurality of division schemes in the traditional technology. The method comprises the following steps of: (1) extracting gray scale information and wavelet energy information of an image to be divided; (2) sampling the image by using an area-based sampling policy to generate a test sample set; (3) selecting different characteristic vectors to form a plurality of test sample sets; (3) generating a primary division scheme by using an evolution cluster based on a multi-target immune algorithm; (5) integrating and learning an optimal division scheme in the primary division scheme; (6) marking the class of the pixel points of the image according to the selected division scheme; and (7) outputting the image division result. The invention has advantages of high average accuracy in image division and strong robustness and is applicable to the obtaining of image information and the division of image texture.
Owner:XIDIAN UNIV
Television based application program recommending method
ActiveCN102750169AAdd funSolve the difficulty of choosingProgram loading/initiatingSelective content distributionApplication softwareData library
Owner:深圳华康创展科技控股集团有限公司
Interactive guiding and identifying intelligent wardrobe and using method
InactiveCN109998286ASolve the difficulty of choosingSolve the problem of finding clothesWardrobesDigital data information retrievalClothes hangerCollocation
The invention discloses an interactive guiding and identifying intelligent wardrobe and a using method. The intelligent wardrobe includes a hardware device and a software system. The hardware device includes an intelligent clothes hanger, a camera, a displayer, a computer and a storage device, wherein the intelligent clothes hanger is arranged in a wardrobe body and has an indicator light guidingand identifying function, and the camera, the displayer and the computer are arranged outside the wardrobe body; the software system is deployed in the computer and includes a clothing identificationmodule, a clothing management module, a reference information module, a guiding and identifying module, a clothing collocation module, a human-computer interaction module and a user management module.The interactive guiding and identifying intelligent wardrobe identifies and reads clothing information through an image identification system, achieves intelligent classification and intelligent collocation on clothes of a user, guides the user to find the location of the clothes as soon as possible through an indicator light guiding scheme, and solves the problem of difficulty of the user in finding the clothes.
Owner:HUBEI UNIV OF TECH
Dense medium suspension liquid coal slurry content determination method by using principal component analysis and support vector machine
InactiveCN101608994AAchieve dimensionality reductionSolve the difficulty of choosingSpecific gravity by measuring pressure differencesGenetic modelsDimensionality reductionPrincipal component analysis
The invention relates to a dense medium suspension liquid coal slurry content determination method by using principal component analysis and a support vector machine, which belongs to coal slurry content industrial detection methods. The method is characterized in that a plurality of principal components are constructed by utilizing the principal component analysis method, so as to facilitate the dimensionality reduction treatment of high-dimensional pressure difference data in the static settling process of dense medium suspension liquid, and a training sample is formed after extracting the principal components; an epsilon type support vector regression machine is further used for establishing a coal slurry content measurement module, and the basic genetic algorithm is used for realizing the selection of optimal parameters of the support vector machine during the modeling process. The error of the coal slurry content measured by the method is + / -4%.
Owner:TSINGHUA UNIV
Grounding line selection method based on HHT signal analysis
InactiveCN108802566ASolve the difficulty of choosingOvercome the shortcomings of low line selection accuracyFault location by conductor typesFrequency spectrumLow-pass filter
The invention relates to a grounding line selection method based on HHT signal analysis, which comprises the steps of 1) performing single-phase grounding fault analysis and fault line selection on aneural point non-effective grounding system by adopting HHT; 2) introducing an EEMD (Ensemble Empirical Mode Decomposition) method into signal sudden change detection, detecting the moment when a zero-sequence current signal of a signal feeder reaches a bus, and starting fault line selection; 3) extracting zero-sequence current transient signals, designing a low-pass filter with the window being apower frequency so as to filter out steady state signals in the zero-sequence current of each line and extract transient signals; 4) performing EEMD analysis on transient current i0k(t), that is, performing EEMD analysis on the zero-sequence transient current i0k(t), decomposing the zero-sequence current transient component i0k(t) containing various frequencies into a series of current IMFn components with different central frequencies, and searching a main frequency component concentration IMF; 5) performing time-frequency spectrum (Hilbert spectrum) analysis on the zero-sequence current signal of the feeder, that is, performing normalized Hilbert transform on the maximum IMFi obtained by EEMD analysis to obtain a time-frequency spectrum (Hilbert spectrum) of the zero-sequence current signal of the feeder.
Owner:HEFEI UNIV OF TECH +1
Molecular marker related to prawn WSSV resistance and application thereof
ActiveCN105821155ASolve the difficulty of choosingEasy to operateMicrobiological testing/measurementDNA/RNA fragmentationDiseaseAgricultural science
The invention belongs to the technical field of aquatic organisms and particularly relates to a molecular marker related to prawn WSSV character resistance and application thereof. The molecular marker remarkably related to prawn WSSV character resistance is located at the 139 bp position of the DNA sequence SEQ ID TRAF 6g of the TRAF 6 gene and is A>G type mutation, a relation analysis method is utilized to identify that the locus is remarkably related to the prawn WSSV resistance character, gene frequency of the AA gene type in the resistance group is higher than that of a vulnerable group (p<0.05), and it is prompted that the AA gene type is a resistance advantage gene type. The marker can serve as the molecular marker for prawn disease resistance breeding and assists in selected genetic breeding of prawns.
Owner:INST OF OCEANOLOGY - CHINESE ACAD OF SCI
Variable-step photovoltaic MPPT (Maximum Power Point Tracking) control method based on angle of contingence
ActiveCN103744468ASimple designSolve the difficulty of choosingPhotovoltaic energy generationElectric variable regulationPerturbation and observationSpeed factor
The invention discloses a variable-step photovoltaic MPPT (Maximum Power Point Tracking) control method based on an angle of contingence. The variable-step photovoltaic MPPT control method based on the angle of contingence comprises the following steps: (1), obtaining the power-voltage characteristic curve of a photovoltaic cell; (2), obtaining a speed factor NL=1-costheta by the power-voltage characteristic curve, wherein theta=arctan(dP / du) is the angle of contingence of the power-voltage characteristic curve, P is the output power of the photovoltaic cell, and u is the output voltage of the photovoltaic cell; (3), obtaining the step Di by the speed factor NL; (4), according to the basal principle of a perturbation and observation method, obtaining the reference voltage of a proportional-integral controller Uref(i+1)=Uref(i)+ / -Di, and thus achieving the maximum power point tracking. According to the method, the problems of difficulty to select the maximum step and of appearance of dead regions or misconvergence of MPP right tracking caused by improper parameter design in current variable-step control method are solved, the maximum power point tracking speed and accuracy can be simultaneously considered, and the maximum power point output by a photovoltaic array can be accurately and rapidly tracked.
Owner:HUAZHONG UNIV OF SCI & TECH
Enterprise service recommendation method based on enterprise feature propagation
ActiveCN113342904ASolve the difficulty of choosingSolve problems such as poor recommendation effectData processing applicationsRelational databasesBusiness enterpriseEngineering
An enterprise service recommendation method based on enterprise feature propagation performs feature propagation on enterprises in an interaction record by using a knowledge graph associated between enterprise features and a target service, automatically mines enterprise association paths, depicts associated features between the enterprises, and combines the associated features with the enterprise features. And the new loss function is combined with deep learning to obtain the interaction probability of the enterprise and the service, so that the problem of poor recommendation effect caused by deviation from the relationship between the enterprises due to the fact that a general framework only uses interaction data and basic information can be solved, and accurate recommendation of the service scheme of the enterprise is realized. Through automatic mining of relationships between enterprises, discovery of association paths between the enterprises, interaction prediction scoring of enterprise features, and feature propagation of the enterprises in interaction records by target services and an interaction framework, the problem that the enterprises are difficult to select service schemes is solved.
Owner:SHANDONG ARTIFICIAL INTELLIGENCE INST +2
Underground coal separation method and system
InactiveCN107127051ASmall footprintSolve the difficulty of choosingSolid separationCycloneEngineering
The invention discloses an underground coal separation method and a system. According to the method, a coal preparation plant is integrally built under the ground, a plurality of coal products are conveyed to a product storehouse on the ground through a lifting system or a belt conveyor after washing, and washed gangue is directly used for filling goaf under the ground. According to the coal separation process, a torbanite dense-medium shallow slot is used for separation, slack coal is not washed, coarse slime is recycled by adopting a thickening and classifying cyclone and a high-frequency screen, and fine slime is recycled by adopting a filter press. According to the underground coal separation method, the coal preparation plant is built under the ground, so that the occupied area of an industrial site on the ground is greatly reduced. In addition, the washed gangue is not discharged from a mine, so that the invalid lifting and the transportation cost are reduced, the actual capacity of the mine is increased, additionally, the gangue stacking and processing cost on the ground is reduced, and environmental hazards are reduced. According to the underground coal separation method, the washing process of most coal preparation plants can be satisfied, the application range is wide, and for the construction of coal mines in mountain ravines, limited areas or land difficult to remove, the problem of difficulty in plant location is solved.
Owner:中煤能源研究院有限责任公司
Optical correlator based on modal dispersion
InactiveCN103856266AReduce lossSolve the difficulty of choosingDistortion/dispersion eliminationMultimode transmissionSpatial light modulatorFocal position
The embodiment of the invention provides an optical correlator based on modal dispersion, and belongs to the field of optical fiber communication. The optical correlator based on modal dispersion is characterized in that a light source (1) is located at the focal position of a convergent lens (2), the back of the convergent lens (2) is a light input port (4a) of a spatial light modulator (4), an electric input port (4b) of the spatial light modulator (4) is connected with a signal source (3), the back of a light output port (4c) of the spatial light modulator is a convergent lens (5), the focal position of the convergent lens is the input end of a multi-mode optical fiber (6), and the output end of the multi-mode optical fiber (6) is connected with a photoelectric detector (7). The optical correlator based on modal dispersion is basically characterized in that the modal dispersion of the multi-mode optical fiber is used for manufacturing the correlator and has the advantage of being simple in structure, and the optical fiber is short, so that the energy loss in the transmission process of light signals is reduced. The light source bears the signals to be detected, the use of a high-speed modulator is avoided, and system cost is avoided. The use of the multi-mode light source overcomes the defect that an existing optical correlator based on modal dispersion has a high requirement for the bandwidth of the light source, and the optical correlator based on modal dispersion has broad application prospects on the aspect of light signal processing.
Owner:BEIJING JIAOTONG UNIV
Badminton self-service vending machine
PendingCN109979088ASolve the difficulty of choosingReduce labor costsCoin-freed apparatus detailsApparatus for dispensing discrete articlesControl systemSimulation
The invention discloses a badminton self-service vending machine. The badminton self-service vending machine is provided with a temperature and humidity sensor for detecting an external motion environment. After data is transmitted to a control system, the control system can display the data on a touch screen and / or display badmintons meeting the current motion environment on the touch screen forusers to select, and after the users select the badmintons on the touch screen, the control system controls a single-badminton delivery device that stores a plurality of bulk badmintons to deliver theselected badminton type. After the vending machine is applied to the sports field, the labor cost can be reduced, the selling unit price can be further reduced, and a reasonable price can be ensured;when the users go to the badminton sports field, the process of preparing the badmintons in advance is not required, and meanwhile, a variety of badmintons can be selected, the price is low and the use is more convenient, the problem of selection difficulties of the users can also be solved, the users can adjust the type of badmintons in time, and the sports experience can be improved.
Owner:崔浩
Three-dimensional movable precast concrete component production system
PendingCN110524695ASolve the difficulty of choosingSmall footprintMouldsAuxillary shaping apparatusMovable typeSmall footprint
The invention relates to the field of fabricated buildings, in particular to a three-dimensional movable type precast concrete component production system which is built on a construction site of a fabricated building and comprises mold bedplates, pouring frames and supporting pieces. A plurality of mold bedplates are vertically stacked at intervals; every two adjacent mold bedplates are supportedthrough the multiple supporting pieces. The supporting pieces are detachably assembled with the mold bedplates, the upper surfaces of the mold bedplates are flat, the pouring frames are fixed to theupper surfaces of the mold bedplates to form pouring cavities of precast concrete components, and the height of the pouring frames is smaller than the interlayer height between every two adjacent moldbedplates. The system has the effects that the structure is firm, the system can be directly built on a construction site, the occupied area is small, and long-distance transportation of prefabricated parts is not needed.
Owner:深圳市胜德建筑科技有限公司
Communication information generating method and device
ActiveCN105515938ASolve the difficulty of choosingReduce input burdenData switching networksSpecial data processing applicationsUser inputTerminal equipment
Owner:BEIJING SAMSUNG TELECOM R&D CENT +1
GNSS-IR height measurement method suitable for navigation receiver
PendingCN113805208ASolve the difficulty of choosingAccurately reflectHeight/levelling measurementSatellite radio beaconingMoving averageFrequency spectrum
The invention discloses a GNSS-IR height measurement method suitable for a navigation receiver. The method comprises the following steps of: acquiring a satellite in-orbit position coordinate, a signal-to-noise ratio and a user receiver position coordinate by using observation data of a common navigation type GNSS receiver, and calculating a satellite elevation angle and an azimuth angle according to original observed quantity; screening proper satellites according to space-time distribution of an observation scene, and preprocessing a signal-to-noise ratio time sequence by using a moving average method; separating reflection components in a signal-to-noise ratio of each satellite by using a local weighted regression method, performing spectral analysis on the signal-to-noise ratio sequence residual error based on elevation angle reordering, estimating the oscillation frequency of the signal-to-noise ratio of a reflection signal, and calculating the reflection height corresponding to a single satellite according to the oscillation frequency; and optimizing a measurement result of the reflection height through weighting. According to the GNSS-IR height measurement method, the application range is expanded, data resources of the navigation type receiver are fully utilized, the under-fitting problem of a traditional low-order polynomial method can be effectively solved, and the measurement precision and stability are improved.
Owner:HANGZHOU DIANZI UNIV
Magnetically controlled reactor vibration noise measurement and control method
ActiveCN112558650ACancel noiseSolve the difficulty of choosingMechanical oscillations controlSubsonic/sonic/ultrasonic wave measurementControl cellProcess engineering
The invention discloses a magnetically controlled reactor vibration noise measurement and control method. According to the technical scheme, a vibration sensor is tightly attached to the outer surfaceof an oil tank of a magnetically controlled reactor and used for collecting vibration noise signals; an industrial personal computer processes acquired vibration noise signals by adopting a signal decomposition algorithm based on signal vibration attributes; and the method specifically comprises the following steps: constructing dictionaries with different oscillation attributes by adjusting quality factors, extracting harmonic components in the vibration noise signals, and analyzing and processing the extracted vibration noise signals to generate damping adjustment signals; and transmittingthe damping adjustment signal to a damping-adjustable shock absorber control unit to adjust the damping parameter of the damping-adjustable shock absorber, so that the damping of the damping-adjustable shock absorber is adjusted and controlled. The vibration detection and control method of the magnetically controlled reactor is established by utilizing signal decomposition based on signal oscillation attributes, so that vibration and noise reduction and safe operation of the magnetically controlled reactor are realized.
Owner:ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
Transient voltage stability monitoring method based on phase correction Lyapunov exponent
ActiveCN112510688AEffectively distinguish transient voltage steady stateDiscrimination of transient voltage steady stateAc network circuit arrangementsTransient stateVoltage amplitude
The invention discloses a transient voltage stability monitoring method based on a phase correction Lyapunov exponent. The method comprises the steps: carrying out mode analysis on an obtained initialtime window voltage track, determining various parameters of a dominant oscillation mode, and calculating the maximum value of a voltage amplitude change rate; adopting step length control parametersand the number of mean voltage measurement points in a mean value method to eliminate the influence of measurement errors of adjacent voltage tracks, and calculating the change rate of adjacent voltage amplitudes; and judging the transient voltage stable state of the power system according to the maximum value of the voltage amplitude change rate and the adjacent voltage amplitude change rate. According to the invention, the defect that an MLE initial time window and an observation window need to be preset in the prior art is overcome, and high universality and practicability are achieved.
Owner:NORTHEAST DIANLI UNIVERSITY +2
Combustion-supporting fan linkage control system and method
ActiveCN104775022ARealize linkage controlSolve the difficulty of choosingHeat treatment process controlPump controlThrottle controlControl system
The invention discloses a combustion-supporting fan linkage control system and method, wherein the system includes an air pressure detection device, a throttle control device, a power control unit, a human-computer interaction interface and a PLC device. The PLC device controls an opening degree of throttles of combustion-supporting fans according to an air pressure value outputted by the air pressure detection device and judges whether a supplemental combustion-supporting fan is required to be started or a running combustion-supporting fan is required to be stopped according to the air pressure value and the opening degree of the throttles. According to the system and the method, the waste of electric energy brought because the best starting number of the combustion-supporting fans cannot be determined is reduced, at the same time, the choice difficulty of the combustion-supporting fans during load fluctuation is overcome, and the work load of operators is reduced.
Owner:BAOSHAN IRON & STEEL CO LTD
Hotel reservation processing method and system, electronic equipment and storage medium
PendingCN114254783ASolve the difficulty of choosingCheck in quicklyDigital data information retrievalReservationsOperations researchDatabase
The invention discloses a hotel reservation processing method and system, electronic equipment and a storage medium. The hotel reservation processing method comprises the following steps: acquiring check-in information input by a user; outputting a selectable quotation according to the check-in information; obtaining an expected quotation selected by the user from the selectable quotation; outputting a hotel list corresponding to the expected quotation; obtaining a target hotel selected by the user from the hotel list; and sending the order request to the target hotel and generating an order in response to a determination instruction of the target hotel. According to the invention, by setting the quotation range in advance, the user can reasonably provide the bid, then the hotel matched with the bid is screened, and the hotel can also select whether to receive the order, so that the hotel sells the own empty room at a relatively reasonable price, the idle room resource is effectively distributed, and in the booking process, the user experience is improved. The hotel is recommended to the user according to the historical consumption data of the user and the evaluation parameters of the hotel, and the problem that the user booking process is difficult to select is solved.
Owner:上海蒜芽信息科技有限公司
Intelligent pod system for three-dimensional monitoring of atmospheric environment
PendingCN113075897AGuaranteed accuracyAdjust the extraction flow in real timeProgramme controlAircraft componentsEngineeringTwo-way communication
The invention discloses an intelligent pod system for three-dimensional monitoring of an atmospheric environment, and solves the defects that the monitoring precision is low and the reliability is seriously influenced due to factors such as temperature and sampling gas when an unmanned aerial vehicle is used for monitoring the atmospheric environment at present. According to the technical scheme, the system is characterized by comprising a pod subsystem, a terminal subsystem and a server subsystem, wherein the pod subsystem and the terminal subsystem are installed on the unmanned aerial vehicle, and the server subsystem is in two-way communication connection between the pod subsystem and the terminal subsystem; the pod subsystem comprises a pod body with a cabin for monitoring the atmospheric environment, and further comprises an air inlet drainage unit, a sensor group unit, a central processing unit, a pod temperature control unit, a vacuum air exhaust unit, a data transmission unit and a network access unit, and is coupled to the central processing unit and is in communication connection with the server subsystem for two-way communication; according to the intelligent pod system for three-dimensional monitoring of the atmospheric environment, temperature control can be stably carried out in real time, air inlet drainage is stable, and the monitoring result is reliable.
Owner:SHANGHAI JIAO TONG UNIV
Unsupervised image division method based on multi-target immune cluster integration
InactiveCN101847263BThe amount of computing data is smallComprehensive evaluation indicatorsImage analysisGenetic modelsFeature vectorTest sample
The invention discloses an unsupervised image division method based on a multi-target immune cluster integration technology, which mainly solves the problems of poor global optimization capability, single evaluation index, single division scheme form and difficult selection of a plurality of division schemes in the traditional technology. The method comprises the following steps of: (1) extracting gray scale information and wavelet energy information of an image to be divided; (2) sampling the image by using an area-based sampling policy to generate a test sample set; (3) selecting different characteristic vectors to form a plurality of test sample sets; (3) generating a primary division scheme by using an evolution cluster based on a multi-target immune algorithm; (5) integrating and learning an optimal division scheme in the primary division scheme; (6) marking the class of the pixel points of the image according to the selected division scheme; and (7) outputting the image divisionresult. The invention has advantages of high average accuracy in image division and strong robustness and is applicable to the obtaining of image information and the division of image texture.
Owner:XIDIAN UNIV
Prefabricated assembly type steel-concrete mixed cantilever structure system for widening road and construction method
PendingCN113718570AEven settlementSolve the difficulty of choosingSingle unit pavingsSidewalk pavingsArchitectural engineeringCantilever
The invention discloses a prefabricated assembly type steel-concrete mixed cantilever structure system for widening a road, and relates to the field of steel-concrete mixed structures in road structures. The system comprises a cantilever beam which comprises a first-section concrete precast block, a third-section concrete precast block, a second-section concrete precast block and a plurality of steel member joint devices. The steel member joint devices are arranged at the two ends of the second-section concrete precast block; the first-section concrete precast block is connected with the steel member joint device at one end of the second-section concrete precast block, and the third-section concrete precast block is connected with the steel member joint device at the other end of the second-section concrete precast block. The cantilever beam is cut, partitioned and prefabricated, the weight of each partitioned block can be controlled according to needs, and the problem that a storage site, transportation equipment and hoisting equipment are difficult to select due to the fact that the weight and the size are too large is solved. The invention further relates to a construction method of the prefabricated assembly type steel-concrete mixed cantilever structure system for widening the road.
Owner:CHANGJIANG SURVEY PLANNING DESIGN & RES
40.5 kV vertical open-type disconnecting switch
PendingCN114188177ASolve the difficulty of choosingImprove flow capacityAir-break switch detailsBi layerStructural engineering
The invention discloses a 40.5 kV vertical open-type disconnecting switch, which comprises a bottom frame, a transmission case, a double-layer conductive arm, a transmission insulator and a driving mechanism, and is characterized in that a plurality of pairs of supporting insulators and a main conductive base are arranged on the bottom frame side by side; and the transmission crank arm is used for controlling the transmission insulator to rotate so as to control the double-layer conductive arm and the static side base to perform switching-on and switching-off actions in the vertical direction. The isolating switch is high in through-current capacity, the conducting arm of the isolating switch is of a double-layer conducting arm structure, the sectional area of each layer of conducting arm is small, and the problem that conducting materials with large-current parameters larger than 6300 kA are difficult to select can be effectively solved; the operation is flexible, controllable and stable, the impact on the static side during closing is reduced, and the device can stop at any position and has a certain static retention force; and the electric mechanism of the isolating switch is simple in structure, can be used in severe environments such as dusty and humid environments, and is convenient for daily maintenance.
Owner:山东泰开隔离开关有限公司
Power switching network implementation method based on wave rotor equipment
ActiveCN114562341AIncrease pressureAvoid wastingCombination enginesJet pumpsThermodynamicsPower switching
The invention discloses a power switching network implementation method based on wave rotor equipment, and relates to the technical field of engineering energy conservation. Pressure energy is directly transmitted through unsteady gas waves, expansion cooling of public engineering steam and the work exchange process of high-pressure steam and low-pressure steam are achieved, a flexible and diversified public steam work exchange network is formed with the assistance of a high-expansion-ratio injection supercharger, and the energy-saving purpose is achieved; the wave rotor and the jet pressurizer are arranged in different forms according to working characteristics, so that the functions of an expansion cooling process of high-pressure steam, a pressurizing and warming process of low-quality steam, a work exchange process of high-pressure steam and low-pressure steam and the like are realized, and external shaft work does not need to be consumed; the practical problems of current industrial pressure reduction, temperature reduction pressure energy loss and low extra steam production amount are solved, the sustainable development principle is met, and energy consumption reduction of an industrial process device is facilitated.
Owner:艾肯(江苏)工业技术有限公司 +1
Shared mobile terminal file off-line downloading system and method, storage medium and equipment
ActiveCN113162975AAvoid the impact of network fluctuationsImprove user experienceDigital data information retrievalTransmissionQos quality of serviceMobile end
The invention belongs to the technical field of file off-line downloading, and discloses a shared mobile terminal file off-line downloading system and method, a storage medium and equipment. The system is composed of a downloading host and user equipment, and the shared mobile terminal file off-line downloading system comprises a downloading host module, a user use and personalized content customization module and a file analysis synchronization module. According to the invention, the shared USB flash disk is creatively adopted as an offline storage medium, the influence of network interruption or fluctuation on the service quality is fundamentally avoided, and meanwhile, the user experience is improved by combining individual selection of the user with personalized recommendation in advance. The downloading host provided by the invention is connected with a plurality of shared USB flash disks to provide services for a plurality of users, data sharing is carried out between the shared USB flash disks and the built-in storage of the downloading host, the flow is also saved, and the downloading host can be widely applied to scenes without network access, weak network access or high network access cost, and high-quality interactive multimedia services are provided for users in the scene.
Owner:XIDIAN UNIV
A method for measuring and controlling vibration and noise of a magnetron reactor
ActiveCN112558650BCancel noiseSolve the difficulty of choosingMechanical oscillations controlSubsonic/sonic/ultrasonic wave measurementControl cellFuel tank
Owner:ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
A kind of method for selectively recovering copper from chloride mixed solution
InactiveCN109929999BReduce adsorption efficiencySolve the difficulty of choosingProcess efficiency improvementCu2 ionsCopper chloride
Owner:CENT SOUTH UNIV
A method for preparing thin films by transferring sublimable materials from bulk to substrate under non-vacuum conditions
ActiveCN109411612BThickness is easy to controlSolve the difficulty of choosingFinal product manufactureSolid-state devicesThin membraneVacuum evaporation
The invention relates to a method for preparing a thin film by transferring a sublimable material from a body to a substrate under non-vacuum conditions. The molecular weight of the sublimable material is less than or equal to 1000 g / mol. The preparation method includes the following steps: preparing the sublimable material on the surface of the body Film or make a sheet, and then align the side of the body containing the above-mentioned sublimable material with the side of the substrate that needs to be filmed, and heat the side of the body that is not in contact with the sublimable material under non-vacuum conditions to ensure the transfer of the sublimable material. To the substrate, a thin film is prepared on the surface of the substrate material. The method of the invention can prepare single-layer or continuous multi-layer films under non-vacuum conditions, and the film thickness is controllable, which solves the difficulty of selecting orthogonal solvents in the process of using solution processing methods in the preparation of multi-layer thin film devices in the prior art problems and the high cost of vacuum evaporation.
Owner:WUHAN UNIV
Combustion fan linkage control system and method
ActiveCN104775022BRealize linkage controlSolve the difficulty of choosingHeat treatment process controlPump controlThrottle controlControl system
The invention discloses a combustion-supporting fan linkage control system and method, wherein the system includes an air pressure detection device, a throttle control device, a power control unit, a human-computer interaction interface and a PLC device. The PLC device controls an opening degree of throttles of combustion-supporting fans according to an air pressure value outputted by the air pressure detection device and judges whether a supplemental combustion-supporting fan is required to be started or a running combustion-supporting fan is required to be stopped according to the air pressure value and the opening degree of the throttles. According to the system and the method, the waste of electric energy brought because the best starting number of the combustion-supporting fans cannot be determined is reduced, at the same time, the choice difficulty of the combustion-supporting fans during load fluctuation is overcome, and the work load of operators is reduced.
Owner:BAOSHAN IRON & STEEL CO LTD
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