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114results about How to "Eliminate randomness" patented technology
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Vehicle gear-shifting quality evaluation testing method and system
The invention discloses a vehicle gear-shifting quality evaluation testing method, which comprises the steps of: 1) at a vehicle gear-shifting quality evaluation testing preparation stage: establishing a vehicle database by adopting an SQL (structured query language) server; establishing a vehicle gear-shifting quality evaluation module by adopting MATLAB / Simulink and determining the core algorithm of the vehicle gear-shifting quality evaluation module; and selecting the type of a vehicle to be tested and a testing system to be used; 2) at a vehicle gear-shifting quality testing stage: conducting gear-shifting rule testing, Tip in testing, Tip out testing, Fast Off testing, brake control logic testing, operability testing, start testing, acceleration testing and driving during a traffic jam; and 3) at a vehicle gear-shifting quality evaluation stage: calling data of the vehicle database as data input of the vehicle gear-shifting quality evaluation model and obtaining an evaluation result through data processing and the like; and outputting the evaluation result a graphical user and result display interface. The invention additionally provides a vehicle gear-shifting quality evaluation testing system.
Owner:JILIN UNIV
Density and closeness clustering based user moving behavior determination method
InactiveCN105404648AEliminate randomnessRemove outliersCharacter and pattern recognitionSpecial data processing applicationsDensity basedData mining
The invention discloses a density and closeness clustering based user moving behavior determination method and belongs to the field of data businesses. The method comprises: introducing a time window, performing time window division on a moving sequence of a user, and dividing the continuous moving sequence into a plurality of window sequences discrete in time; according to a definition of a moving locus, mining out a plurality of moving loci of the user from the window sequences; according to a definition of a characteristic locus set, performing division on the moving loci, including similar loci in a same characteristic locus set, and removing noise data; and according to a definition of a characteristic locus, selecting corresponding central loci as characteristic loci from the characteristic locus set, and finally determining a moving behavior of the user. The method can be applied to practical mobile communication data, so that the randomness and abnormal points of moving of the user can be eliminated; and the determined moving behavior of the user can serve as an input of a position service based position module and also can serve as an input of a mobile recommendation system, so that personalized services can be provided.
Owner:NORTHEASTERN UNIV LIAONING
Method for selecting multi-user sensing channel in cognitive sensor network
ActiveCN102457338AOptimal Normalized ThroughputLarge Normalized ThroughputBaseband system detailsTransmission monitoringFrequency spectrumMinimization problem
In cognitive radio, frequency spectrum sensing is an important premise and a core link for realizing the frequency spectrum dynamic access. The invention aims to provide a method for selecting a multi-user sensing channel in a cognitive sensor network, which comprises the following steps of: on an energy detection method, sensing normalized throughput acquired by a primary user channel from a maximized secondary user; using a detection time optimal scheme to budget the maximum throughput of all the secondary users and the selected channels of the secondary users; constructing a maximum throughput matrix; using a bidiagraph to express the channel selection problem under a multi-user multi-channel environment; converting a maximization and minimization problem into a unified minimization solution problem; and under the limit of target detection probability, adopting an improved Hungarian algorithm for the optimal selection of the sensing channel. By the method disclosed by the invention, the minimized throughput of the whole secondary user network can be greatly improved.
Owner:NANJING UNIV OF POSTS & TELECOMM
Statistical estimation of ultrasonic propagation parameters for aberration correction
InactiveUS20060064012A1Improve focusRandomness of the scattering is eliminatedUltrasonic/sonic/infrasonic diagnosticsAnalysing solids using sonic/ultrasonic/infrasonic wavesFrequency domainUltrasound
In estimation of an aberration in propagation of an ultrasonic wave from an aperture through an aberration path, the aperture is modeled as a plurality of sources and receivers. The frequency-domain magnitude of the aberration is estimated by normalizing the scattered signal power spectrum. The frequency-domain phase of the aberration is estimated by a recursion using cross spectra of signals at neighboring receivers.
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
Disk media, and method of and device for recording and playing back information on or from a disk media
InactiveUS20050089312A1Reduce time spentIncrease speedTelevision system detailsDisc-shaped record carriersDigital videoRecovery record
In a video disk recording / playback device for converting a digital video signal or the like into high-efficiency coded data and recording the coded data on a video disk, or for restoring high-efficiency coded data recorded on the video disk and reproducing an output image, wherein said digital video signal is composed of a succession of video signals of a plurality of frames and including an I picture encoded within a frame, a P picture interframe coded by forward motion compensation with reference to said I picture and / or another P picture, and a B picture interframe coded by motion compensation in both directions with reference to said I and / or P pictures temporally preceding and succeeding the B picture, there are further provided a means for recording in an image information table set up on said video disk all of the start addresses of coded data representing selected images such as images to be retrieved and the start addresses of data containing information required for reproducing the coded data. With the above configuration, retrieval of all kinds of images of I, P, and B pictures is possible by recording all of the start addresses of coded data representing selected images such as images to be retrieved and the start addresses of data containing information required for reproducing the coded data in the image information table on the video disk.
Owner:MITSUBISHI ELECTRIC CORP
Solar cell sheet electric sheet-splitting device
ActiveCN103337554AImplement the shard functionEliminate randomnessFinal product manufactureSemiconductor/solid-state device manufacturingEngineeringCam
Owner:TRINASOLAR CO LTD
Multi-character selection breeding method of fish and shrimp
ActiveCN102823528AReduce subjectivityEliminate randomnessClimate change adaptationPisciculture and aquariaShrimpHeritability
The invention discloses multi-character selection breeding method of fish and shrimps. The method comprises the following steps of: firstly obtaining individual selection indexes and family selection indexes according to measured values of breeding target characters, then reserving stocks and hybridizing according to the selection indexes, building family mating groups and finally obtaining bred populations of the next generation. Moreover, when the individual selection indexes are obtained, the stock reservation rate and the heritability of breeding target characters are firstly calculated according to the measured values of the breeding target characters, expected selection intensity is calculated according to the stock reservation rate, then an expected selection response and a corresponding weighted value of each breeding target character are obtained according to the expected selection intensity, the heritability and the standard difference of a standardized breeding value, and finally the individual selection indexes are obtained by using the weighted value. Therefore, the subjectivity and the randomness during calculation of the weighted value are eliminated, the reliability and the accuracy of the breeding method are high, and the comprehensive genetic progress of multi-character selection is improved.
Owner:YELLOW SEA FISHERIES RES INST CHINESE ACAD OF FISHERIES SCI
Secondary printing alignment method of silicon solar cell
ActiveCN103640349AAchieve precisionEliminate randomness and numerical judgment errorsOther printing apparatusElectrical and Electronics engineeringSecond screen
The invention discloses a secondary printing alignment method of a silicon solar cell. The method includes the following steps that a, a first screen printing plate with a first locating identification mark group is provided; b, the first screen printing plate is used for conducting primary printing through a first printing machine to obtain a silicon wafer with a first locating pattern group, and the first locating pattern group is matched with the first locating identification mark group; c, a second screen printing plate with a second locating identification mark group is provided, second locating marks of the second locating identification mark group correspond to first locating identification marks of the first locating identification mark group one by one; d, the second screen printing plate is used for conducting secondary printing on the silicon wafer printed for the first time in the step b) through a second printing machine, a silicon wafer with a second locating pattern group is obtained, the silicon wafer is also provided with the first locating pattern group, and the second locating pattern group is matched with the second locating identification mark group. By means of the method, precision and numerical valve location of locating patterns in secondary printing can be achieved, artificial randomness and numerical value judgment errors are removed, aligning precision is improved, overstriking ratio of silk-screen printing is reduced, and production yield is improved.
Owner:盐城天合国能光伏科技有限公司
Construction thermal environment and construction energy-saving control method in air-conditioning construction
InactiveCN101476754ALow input costEliminate randomnessLighting and heating apparatusSpace heating and ventilation detailsBuilding energyData information
The invention relates to a method for controlling building thermal environment and building energy conservation in an air-conditioning building, which comprises the following steps: calculating out the comprehensive temperature average value and the corresponding wave amplitude value thereof of a horizontal external surface and the west wall external surface of a local building roof according to data information that the temperature average value t0 of the outdoor air in a local air-conditioning building in continuous 5 days in the lately 10 years is more than or equal to 28 DEG C; determining the thermal transmission resistance control index of a roof and a wall in the process of heat preservation in the air-conditioning building; determining the heat insulation and energy conservation three-element control index of the wall, the roof and a window in the air-conditioning building; and controlling the hot working performances of the wall, the roof and the window according to the heat insulation and energy conservation three-element control index. The method gives full play to the use value of the existing meteorological data, adopts a simple method to make the calculation of the control indexes of each energy conservation aspect simple and fast, and has small investment cost. The method applied to the designs of the building thermal environment and the building energy conservation can greatly improve the energy conservation efficiency of the building.
Owner:孝感学院
Confirming method for turbine standard backpressure in thermal power generating unit energy consumption assessment and coal consumption check test
InactiveCN103063354AUnderstanding Backpressure ConditionsIncrease reflectionFluid pressure measurementCooling towerEngineering
The invention relates to a confirming method for turbine standard backpressure in a thermal power generating unit energy consumption assessment and a coal consumption check test. The standard backpressure is used for replacing rated backpressure with large deviation. The confirming method includes the steps that actual performance data of a cooling tower and a condenser are obtained through the test, circulation water amount and temperature rise data of the condenser are obtained, by means of combination of the test with calculation, the data obtained by the test and other design data of parameters are adopted, the standard backpressure is calculated and confirmed according to a general process, and circulation water schedule is based on an actual schedule way of an annual mean weather condition during testing. The obtained backpressure data results are truer than those of the rated backpressure, randomness of the current rated backpressure data results is avoided, backpressure conditions and equipment states of a machine set can be deeply understood, comparison with other machine sets is particularly facilitated, the confirming method is used for obtaining the accurate standard backpressure, the assessment of the situations and energy-saving potential of the machine set can be objective and deep, and the confirming method plays an important role.
Owner:ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER +1
Seed gas bubble micro heat exchanger and seed gas bubble micro heat exchanger system
InactiveCN101447467AEliminate randomnessNon-repeatable eliminationSemiconductor/solid-state device detailsSolid-state devicesElectricityVoltage generator
The invention discloses a seed gas bubble micro heat exchanger system. The system comprises an IC chip to be cooled, a heat exchanger body for cooling the IC chip, a control circuit, a liquid supply circuit which is used for supplying liquid to a micro heat exchanger and is communicated to two ends of the heat exchanger body, an impulse voltage generator which is electrically connected with the heat exchanger body and used for supplying an exciting voltage signal to the heat exchanger body, and a final cold trap radiator which is connected with the liquid supply circuit and is used for releasing heat absorbed by the liquid supply circuit to the atmospheric environment, and the control circuit is electrically connected with the impulse voltage generator. The seed gas bubble micro heat exchanger system can trigger phase change heat transfer in micro-channels as quickly as possible, which thoroughly solves a difficult problem that high boiling starting point temperature, ensures that a micro heat transfer system is not over heated when being started, avoids burning down the chip to be cooled and greatly prolongs the service life of the chip to be cooled.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
Cellular network positioning method and cellular network positioning device
InactiveCN101938690AHigh precisionEliminate randomnessLocation information based serviceTime differenceKalman filter
The invention discloses a cellular network positioning method and a cellular network positioning device. The cellular network positioning method comprises the following steps of: establishing wireless communication connection among a mobile unit to be positioned, a first positioning base station and a second positioning base station; detecting a first time difference from positioning signals emitted by the mobile unit to be positioned to the first positioning base station and a service base station of the mobile unit to be positioned and a second time difference from positioning signals to the second positioning base station and the service base station; performing Kalman filtering on the first time difference and the second time difference to obtain a first estimation value and a second estimation value; and calculating the position coordinate of the mobile unit to be positioned according to the pre-stored position information of the first positioning base station, the second positioning base station and the service base station, the first estimation value and the second estimation value. The cellular network positioning method can eliminate the randomness of NLOS error and the influence of positive deviation by performing Kalman filtering on the first time difference and the second time difference, and improve the cellular network positioning precision.
Owner:MACAU UNIV OF SCI & TECH
Device and method for automatically cleaving battery pieces
InactiveCN104900757AAchieve standardizationFully automatedFinal product manufactureSemiconductor/solid-state device manufacturingSignal onLaser scribing
The invention relates to a device and a method for automatically cleaving battery pieces, and belongs to the technical field of solar battery pieces. The device for automatically cleaving battery pieces mainly comprises a support, a vacuum adsorption assembly and a cleaving assembly. The vacuum adsorption assembly comprises two sucking discs, each sucking disc is provided with a plurality of vacuum adsorption holes for sucking a battery piece, and the sucking discs are connected with air pressure sensors and drive a motor of the cleaving assembly to rotate after receiving signals; a position sensor is arranged on the cleaving assembly; when receiving sensors signals on the sucking discs, the cleaving assembly controls a drive motor to drive a cam to move; and the cam rolls opposite to a bearing follower in the vacuum adsorption assembly, so that a guide rod connected with the bearing follower moves up to jack the middle position of the two sucking discs in the vacuum adsorption assembly to realize cleaving. The device and the method can be used for automatically cleaving battery pieces after laser scribing, are high in efficiency with respect to manual cleaving, good in section uniformity and low in breaking rate, and can be applied to battery pieces with different size and different type.
Owner:WUHAN DR LASER TECH CORP LTD
System and method for estimating initial channel quality in a multirate system
ActiveUS7200171B2Eliminate randomnessChannel quality estimationError detection/prevention using signal quality detectorLine-faulsts/interference reductionHysteresisMulti rate
Owner:SONY CORP
Disk media, and method of and device for recording and playing back information on or from a disk media
InactiveUS7212728B2High speed searchFast spinTelevision system detailsDisc-shaped record carriersDigital videoRecovery record
In a video disk recording / playback device for converting a digital video signal or the like into high-efficiency coded data and recording the coded data on a video disk, or for restoring high-efficiency coded data recorded on the video disk and reproducing an output image, wherein said digital video signal is composed of a succession of video signals of a plurality of frames and including an I picture encoded within a frame, a P picture interframe coded by forward motion compensation with reference to said I picture and / or another P picture, and a B picture interframe coded by motion compensation in both directions with reference to said I and / or P pictures temporally preceding and succeeding the B picture, there are further provided a means for recording in an image information table set up on said video disk all of the start addresses of coded data representing selected images such as images to be retrieved and the start addresses of data containing information required for reproducing the coded data. With the above configuration, retrieval of all kinds of images of I, P, and B pictures is possible by recording all of the start addresses of coded data representing selected images such as images to be retrieved and the start addresses of data containing information required for reproducing the coded data in the image information table on the video disk.
Owner:MITSUBISHI ELECTRIC CORP
Disk media, and method of and device for recording and playing back information on or from a disk media
InactiveUS7406249B2High speed searchFast spinTelevision system detailsDisc-shaped record carriersDigital videoRecovery record
Owner:MITSUBISHI ELECTRIC CORP
Community discovery method based on node intimacy and label propagation
InactiveCN108809709AImprove accuracy and stabilityEliminate randomnessData switching networksComplex network analysisLabel propagation
The invention provides a community discovery method based on node intimacy and label propagation. The method belongs to the field of complex network analysis. The main technical feature of the methodcomprises the steps of estimating intimacy among adjacent nodes in a network through utilization of local topology information, and establishing an intimacy matrix based on the intimacy; estimating importance of the nodes in the network based on the intimacy matrix, and ensuring that the nodes are updated based on the importance in a descending order; in an iterative updating process, updating a label of each node as the label with the greatest influence in neighbors, and determining the unique label through calculation of the intimacy of the labels if a plurality of labels with the greatest influence exist; and when an algorithm satisfies a stop condition, jumping out of a label propagation process, and subjecting the nodes wit the same label to the same community. The method is reasonable in design; a high quality community can be rapidly detected; the robustness of the label propagation method can be effectively improved; and the method can be widely applied to fields such as protein function prediction, epidemic surveillance and electronic commerce precise recommendation.
Owner:SHANDONG UNIV +1
Lock foot pile support structure for controlling tunnel initial support settlement convergence
PendingCN106979027ASimple processLess impact from process changeoverUnderground chambersTunnel liningArchitectural engineeringSteel frame
The invention discloses a lock foot pile support structure for controlling tunnel initial support settlement convergence. The structure comprises an initial support in the tunnel grotto. A tilted lock foot pile is arranged at the outer wall of the initial support; the lock foot pile comprises a rotary jetting pile body, and the rotary jetting pile body is connected to an L-shaped steel core material. The other end of the L-shaped steel core material is connected with a connecting steel bar. The connecting steel bar is connected to an I beam steel frame of the initial support. The lock foot pile support structure for controlling the tunnel initial support settlement convergence has the advantages that the technical process is simple; the effected interference to the process conversion is less, the operation is convenient; the work efficiency is improved; the problems that the excavations of middle and lower steps cause the arch foot to be vacant, the side wall of the tunnel is unstable or the slippage and the grouting and anchorage effect of lock foot are poor are overcome; the stability of the palm surface, the deformation and settlement of the control cavern and the mechanized construction are achieved.
Owner:CHINA RAILWAY DESIGN GRP CO LTD
Distributed intelligent guiding system and method for parking lot
PendingCN109191906ASolve the problem of poor informationSolve blindnessTicket-issuing apparatusIndication of parksing free spacesVideo monitoringParking space
The invention belongs to the technical field of guide of parking lots and discloses a distributed intelligent guiding system and method for a parking lot. The distributed intelligent guiding system for the parking lot comprises a video monitoring module, an information collecting module, a parking space monitoring module, a central control module, an anti-blocking module, a path guide module, an early warning module, a parking charging module, a data protection module and a display module. The distributed intelligent guiding system and method for a parking lot in the invention can dynamicallymonitor the parking space and prevent the problem of battling for a parking space from occurring; the parking fee of an unlicensed vehicle generated in the parking lot is accurately worked out throughthe parking charging module; the problem that a sentry box terminal cannot normally complete the operations such as entrance and charging which affect the normal operation of the parking lot is solved through the data protection module when the parking lot has problems such as computer breakdown, abnormal power failure, database file damage and the like, thereby greatly reducing the loss of the parking lot caused by failures.
Owner:GUANGXI NORMAL UNIV FOR NATITIES
Method and system for transmitting multimedia broadcast multicast service (MBMS) control signaling
ActiveCN101854589ASolve the problem of configuring MBMS control channelOptimize schedulingNetwork traffic/resource managementAssess restrictionMultimedia Broadcast Multicast ServiceTransport system
The invention discloses a method for transmitting a multimedia broadcast multicast service (MBMS) control signaling. In the method, a network side transmits the indicating information of a wireless frame and / or subframe carrying an MBMS control channel to a terminal by a high-level signaling and transmits an MBMS control signaling to the terminal by the wireless frame and / or subframe carrying the MBMS control channel; and the terminal analyzes the wireless frame and / or subframe carrying the MBMS control channel according to the indicating information of the obtained wireless frame and / or subframe and reads the MBMS control signaling from the wireless frame and / or subframe. The invention also discloses a system for transmitting the MBMS control signaling. The invention solves the problem that a system side is configured with the MBMS control channel, provides the method for the transmission of the MBMS control signaling and eliminates the randomness for transmitting the MBMS control signaling at the system side and receiving the MBMS control signaling at the terminal with less signalingexpense.
Owner:ZTE CORP
Blasting construction method adopting equal-distance fan-shaped hole distributing method for tunnel slotting and enlarging area
The invention discloses a blasting construction method adopting an equal-distance fan-shaped hole distributing method for a tunnel slotting and enlarging area. The blasting construction method is characterized in that a graphing method is adopted for performing equal-distance hole distributing for face holes, hole toes and the like, so that a joint of extending lines of blast holes with fan-shapeddistributed holes is taken as a precise reference point for drilling. Mapping results are utilized for perpendicularly drawing out a perpendicular line on a profile surface at the position of the joint, a sampling rod or an existing anchor rod is fixedly arranged on the perpendicular line; a hanging nylon rope is taken as a drilling and sampling line, and fan-shaped sampling is adopted on the horizontal plane, so that hole-bottom resisting lines between cutting holes and enlarging holes are uniformly distributed at equal distance according to fan-shaped characteristics; and each row of blastholes has evidence in drilling direction, angle, depth and position, and the theoretical method and practice can verify and inspect with each other. The construction method can eliminate an uneven hole distributing phenomenon of three-dimensional blind-region holes in bottoms of the blast holes between an inclined-hole wedge-shaped slotting area and the enlarging area, so that explosive energy distribution in the inclined-hole wedge-shaped slotting area and the enlarging area is uniform and reasonable, and therefore, combined effects of holes is further strengthened.
Owner:CCCC FIRST HIGHWAY XIAMEN ENG
Optimization preparation method of experiment speckle field
The present invention discloses an optimization preparation method of an experiment speckle field. The method comprises: selecting an optimal digital speckle field according to the computer speckle design program and the speckle quality assessment criterion, employing indirect preparation method such as transfer print (hydrographics transfer printing, heat transfer printing and the like), laser cutting, silk screen printing, photosensitive stamp, hollow template to transfer the integrated information of the digital speckle field to the surface of an object to be measured for providing high-precision and good-consistency speckle field for digital image relation measurement. Through optimization selection and direct transferring of the digital speckle field generated by the computer, the problems are solved that the digital image relation method measurement precision is undetermined caused by unstable quality of the speckle field and the traditional spraying making random speckle field method and others depend on the technicians' operation skill levels so as to ensure the reliability of the digital image relation method in the scientific research and the real engineering measurement.
Owner:SOUTHEAST UNIV
A microblog social circle mining method and system based on an artificial immune network
ActiveCN109597924AImprove reliabilityImprove robustnessData processing applicationsWeb data indexingSocial circleInformation processing
The invention belongs to the technical field of network information processing. The invention discloses a microblog social circle mining method and system based on an artificial immune network, and the method comprises the steps: carrying out the calculation of the similarity between users through the analysis of social information and interest information between the users, measuring the relationship strength between the users through the similarity, and carrying out the comprehensive description of the relationship strength between the users; And on the basis, constructing a microblog undirected weighted network taking the users as nodes and the relationship strength as weights, and removing edges with relatively low relationship strength in the undirected weighted network to obtain a microblog user similarity network. According to the invention, an artificial immunization method with relatively high adaptability and self-adjustability is adopted; A principle and an action mechanismof a biological immune network are applied to similarity clustering of microblog users, users with high relationship strength are divided together, and one user is allowed to belong to a plurality ofsocial circles at the same time during division, so that mining of overlapped social circles is realized.
Owner:HUBEI UNIV
Synchronously-triggered pulse signal regeneration device and operation method thereof
ActiveCN108647173AEliminate randomnessHigh measurement accuracyElectric digital data processingElectricityPhase difference
The invention discloses a synchronously-triggered pulse signal regeneration device and an operation method thereof. The device comprises a reference clock generation module, a time interval measurement module, an input delay regulation module, an output delay regulation module and an FPGA module. According to the operation method of the device, the reference clock generation module tracks and locks an input clock signal and generates a system clock signal; the time interval measurement module measures the time difference between a reference clock signal and an external synchronously-triggeredsignal and calculates a delay control quantity; and the FPGA module regulates a delay value of the input delay regulation module according to the delay control quantity. Through the device and the method, the synchronously-triggered pulse signal is regenerated, multiple synchronously-triggered pulse signals are output, the repetition frequency, pulse width and delay of the signals can be regulatedindependently, it is ensured that the phase difference between the synchronously-triggered pulse signal output after power-on every time and the input pulse signal is smaller than 200ps, delay regulation resolution is improved, and time jitter between output and input of the synchronously-triggered pulse signals is reduced.
Owner:NO 34 RES INST OF CHINA ELECTRONICS TECH GRP
Blast furnace molten iron sampling device
ActiveCN105258974AEliminate randomnessReduce instabilityWithdrawing sample devicesInsertion depthInstability
The invention discloses a blast furnace molten iron sampling device, which comprises a fixing support frame (2) arranged at the molten iron groove part, wherein a rotating testing gun (5) is arranged on the fixing support frame (2); the end part of the rotating testing gun (5) is provided with a sampler (1); when the rotating testing gun (5) rotates, molten iron in the molten iron groove can be scooped up through a sampler (1) arranged at the end part of the rotating testing gun (5); the molten iron sample can be put into a sample collecting device (4). The blast furnace molten iron sampling device has the advantages that the sampling position and the insertion depth are relatively fixed; the danger of personnel performing high-temperature operation near the molten iron groove can be reduced; the random performance, the instability and the like of the conventional sampling mode are avoided.
Owner:BERIS ENG & RES CORP
Statistical estimation of ultrasonic propagation parameters for aberration correction
InactiveUS7867166B2Randomness of the scattering is eliminatedAvoid excessive computationUltrasonic/sonic/infrasonic diagnosticsAnalysing solids using sonic/ultrasonic/infrasonic wavesUltrasonic propagationUltrasound
In estimation of an aberration in propagation of an ultrasonic wave from an aperture through an aberration path, the aperture is modeled as a plurality of sources and receivers. The frequency-domain magnitude of the aberration is estimated by normalizing the scattered signal power spectrum. The frequency-domain phase of the aberration is estimated by a recursion using cross spectra of signals at neighboring receivers.
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
An AC/DC hybrid microgrid topology design method based on energy router
InactiveCN109038539AImprove utilization efficiencyEliminate output intermittencyClimate change adaptationSingle network parallel feeding arrangementsThermal energyMicrogrid
The invention relates to an AC / DC hybrid microgrid topology design method based on an energy router. The design method can separate a plurality of AC / DC submicrogrids, and directionally simulate various microgrid topological structures at present and in the future, so as to meet various requirements of microgrid research, including an urban campus-type microgrid, island-type microgrid, and family-type microgrid. The design and implementation of AC / DC hybrid microgrid, on the one hand, can effectively eliminate the negative characteristics such as intermittency and randomness of renewable energy output, provide reliable power supply to distribution network, and improve the efficiency of energy utilization; On the other hand, facing the future, the microgrid will gradually change from a single regional power supply system based on electric energy conversion, storage and transmission to an energy hub with simultaneous integration of multi-energy conversion and interaction such as naturalgas and thermal energy utilization. The hybrid AC / DC microgrid based on the energy router can integrate multiple types of energy systems, which lays a foundation for this.
Owner:天津大学(青岛)海洋工程研究院有限公司
Household energy optimization system and method based on multi-user networking shared energy storage
ActiveCN111369385AReduce energy storage capacityImprove energy storage space utilizationData processing applicationsComputer networkEngineering
The invention discloses a household energy optimization system and method based on multi-user networking shared energy storage, and the system comprises a centralized shared energy storage module which consists of a power electronic device and a group of single storage batteries, and is used for the power utilization and energy storage of a plurality of household users; the internal power supply module which is formed by networking a plurality of home users and is used for direct energy circulation among different users; the energy optimization module which is used for investing, maintaining and managing the centralized shared energy storage module, maintaining the power balance of the internal power supply module and providing power utilization and energy storage optimization services forusers; the home user side module which is used for arranging a next-day home appliance power utilization plan and carrying out information exchange and online payment with the energy optimization module; the external power supply module which is communicated with external power supply equipment and used for supplying power to the whole system, energy storage equipment originally scattered in a user home is changed into centralized shared energy storage system coordination optimization, and compared with original scattered energy storage equipment, the total energy storage capacity is reduced,and the energy storage space utilization rate is increased.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER
A Paramics accurate traffic simulation scene construction method based on bayonet data
ActiveCN109711026AEliminate the defect of random startEliminate start defectsInternal combustion piston enginesSpecial data processing applicationsSimulationTraffic simulation
The invention discloses a Paramics accurate traffic simulation scene construction method based on bayonet data. According to the method, an accurate simulation plug-in is constructed through secondarydevelopment of the Paramics plug-in; the method is used for eliminating the defect of Paramics random departure. the accurate departure module enables the departure instruction of the simulation vehicle to accord with the departure instruction in the vehicle travel path table; and the accurate travel path selection behavior module is used for eliminating the defect that the Paramics randomly specify the travel path selection behavior of the vehicle, so that the travel path selection behavior of the simulation vehicle conforms to the travel path exit sequence in the vehicle travel path table.And meanwhile, accurate traffic simulation scene construction is achieved through gate data extraction processing, the simulation scene has the advantages of accurate vehicle individual generation andpath selection behaviors, the randomness of simulating traffic generation and travel path selection behaviors in the prior art is eliminated, and the traffic simulation precision is improved.
Owner:SUN YAT SEN UNIV
Immune complex fluorescence detection method based on image self-adaption division
InactiveCN104730050AHigh precisionGood repeatabilityFluorescence/phosphorescencePattern recognitionLuminous intensity
The invention provides an immune complex fluorescence detection method based on image self-adaption division. The immune complex fluorescence detection method comprises the following steps: step 1, pre-processing an image, namely carrying out median filtering processing on a fluorescence immune image, reducing noise point interferences and keeping the edge steep; step 2, carrying out image binaryzation, namely estimating a division threshold value according to an immune fluorescence region light intensity curve and then carrying out the binaryzation on the image; step 3, positioning a target position, namely positioning the target position based on target positioning of narrow strip characteristics; step 4, calculating a target gray value, namely after the position of the target region is obtained, calculating a gray value and a background gray value of the target region; and step 5, outputting the gray value to obtain the content of a detected object. According to the light detection method provided by the invention, the randomness and the inconsistency of shapes of an immune fluorescence composite distribution region can be eliminated and the interferences caused by background region reflection are eliminated, and the precision and the repeatability of immune complex fluorescence detection are improved; and meanwhile, the detection processing speed is also increased.
Owner:SHENZHEN KINGFOCUS BIOMDICAL ENG CO LTD
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