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80results about How to "Flexible extraction" patented technology

Polarization multiplexing microwave photon radar detection method and system based on photon sampling

ActiveCN111538028AChange working frequency bandImplement de-FM processingElectromagnetic wave reradiationRadar systemsIntermediate frequency
The invention discloses a polarization multiplexing microwave photon radar detection method and system based on photon sampling. The detection method comprises the steps that an optical frequency combsignal is divided into two paths, the baseband linear frequency modulation signal and the target echo signal respectively modulate one path of optical frequency comb signal to obtain an emission modulation optical signal and a reception modulation optical signal with orthogonal polarization states; the emission modulation optical signal and the reception modulation optical signal are combined into one path of polarization multiplexing optical signal and then are divided into two paths; two paths of signals are respectively analyzed to obtain an emission modulation optical signal and a composite optical signal containing the emission modulation optical signal and the reception modulation optical signal, the composite optical signal is subjected to photoelectric conversion and low-pass filtering to obtain an intermediate frequency signal, and the intermediate frequency signal is processed to obtain detection target information. Through a photon sampling technology and a photon polarization multiplexing technology, broadband and frequency band adjustable radar signals are generated and received, and a radar system is compact and simple and can be integrated.
Owner:ZHEJIANG LAB

3D (Three-Dimensional) image storage method and display method and 3D image file format

The invention provides a 3D (Three-Dimensional) image storage method and display method and a 3D image file format. The 3D image storage method comprises the following steps: obtaining a source image, and labeling the source image as a zeroth layer; then, obtaining the image element of the source image of the layer, dividing the source image data of the layer into data blocks of a 256*256 dimension in the length direction* width direction of the source image data, and later, independently recording a coordinate position corresponding to the starting point position of each layer of slice image in the source image; taking the starting point position of the previous layer of source image and any one slice image as a base point, reducing the sizes of lines and rows according to a preset image compression ratio to form a new source image; sampling and labeling the layer number of the new source image which is currently formed; and independently carrying out statistics on the width d' and the length 1' of the new source image, comparing d', 1' and a numerical value 256 to finally obtain the tower-like storage image information of a 3D scanning image. The 3D image storage method can improve a rate for a user to check a relevant scanning image.
Owner:曲阜裕隆生物科技有限公司

Video-based non-linear on-line expression pre-detection method and device

The invention discloses a video-based non-linear on-line expression pre-detection method and device thereof. The method includes performing preprocessing on video data and extracting feature information of each frame of image; video segments with different lengths are extracted from the training samples, and the nonlinear mapping between the segments and the detection function is constructed. Therepresentation of fragments is based on multi-instance learning, fully mining the effective expression information, and constructing a constraint pair for every two video fragments according to the size of the mapping value to obtain training data; at each time point, the OKMEFD model is updated with all the constraints of the current sample. By minimizing the experience loss and model complexityon the current training data set, the model is optimized with stochastic gradient descent algorithm to obtain the online updating criteria of the model, and the nonlinear expression pre-detection function at each time point is further obtained. The pre-detection method is that the data is read frame by frame to the test sample and the corresponding detection value is output. When the value is greater than the set threshold value, the expression event is considered to be pre-detected. The invention realizes the pre-detection before the end of the expression video. The invention effectively improve the timeliness of expression recognition.
Owner:SOUTHEAST UNIV

Euipment for lifting municipal rain perforated strainer

The invention relates to equipment for lifting a rain perforated strainer, in particular to equipment for lifting a municipal rain perforated strainer, and aims to provide the equipment which can liftthe municipal rain perforated strainer more quickly with less effort without damaging the municipal rain perforated strainer. According to the technical scheme, the equipment comprises a connecting plate and other components; the left side and the right side of the bottom of the connecting plate are each provided with a moving and fixing device correspondingly; the left side and the right side ofthe upper side of the connecting plate are each connected with a swinging rod in a hinged mode; a chute is formed in middle of each swinging rod; a lifting device is arranged in the middle of the connecting plate; and the swinging rod on the left side is hinged to the upper part of the rear side of the lifting device. According to the equipment, the moving and fixing devices is arranged, so thatthe equipment performs fixing and moving operations more flexibly; and a V-shaped rod and a rotating plate are arranged as well, and the rotating plate is driven by the V-shaped rod to move up and down and is capable of rotating flexibly so as to fix the rain perforated strainer, and thus, the effect of conveniently and flexibly lifting the rain perforated strainer is achieved through the cooperation of the V-shaped rod and the rotating plate.
Owner:嘉兴鼎尚信息科技有限公司

High-speed data extracting method achieving input and output arranged in sequence based on FPGA

The invention provides a high-speed data extracting method achieving input and output arranged in sequence based on an FPGA. Direct extraction at a certain extraction ratio is carried out on GHz and higher high-speed original sampling data in the FPGA, the method requires that input data are a set of high-speed A / D collection data fields arranged in sequence, and output extraction data sets are achieved in output, wherein the output extraction data sets are identical with the input data in sequence and width, and the speed of the output extraction data sets is reduced to the fraction of the extraction ratio. The high-speed data extracting method achieving the input and output arranged in sequence based on the FPGA is mainly applied to the situation that a high-speed sampling system carries out extraction on the high-speed A / D original sampling data, the sequence of SRAM storage carried out on the high-speed sampling data is not disorganized due to the fact that the input data and the output data are identical in sequence arranging mode, convenience is brought for the SRAM data storage and subsequent digital signal processing and analysis, data extraction is carried out according to the certain extraction ratio, and the data speed is made to be reduced to the fraction of the original speed. Through the utilization of the scheme, the problems of the random extraction ratio and the extraction mobility of the data direct extraction in multi-path output of a high-speed converter are solved successfully, and extraction modes are flexible.
Owner:CHINA ELECTRONIS TECH INSTR CO LTD

Finite element modeling method and computer storage medium

The invention relates to a finite element modeling method and a computer storage medium, and belongs to the field of computer-aided engineering. The method comprises the following steps: grouping a plurality of input geometric objects, respectively carrying out grid generation processing to obtain a surface grid corresponding to each group of geometric objects, and respectively carrying out error repair processing on the surface grid corresponding to each group of geometric objects to obtain an independent surface grid corresponding to each group of geometric objects; carrying out compatibility processing on all the independent surface grids to obtain a preliminary surface grid system, carrying out grid re-division processing on the preliminary surface grid system to obtain a surface grid system, and carrying out feature extraction on the surface grid system to obtain feature information; and establishing a three-dimensional finite element model according to the surface grid system and the feature information. By means of the method, rapid finite element modeling of the multi-project object coupling system can be achieved, and the efficiency and the function integration degree of the whole finite element modeling process are effectively improved.
Owner:WUHAN INSTITUTE OF TECHNOLOGY

Duty and network management transparent transfer device and transparent transfer method on basis of ASON (automatically switched optical network)

The invention discloses a duty and network management transparent transfer device and a transparent transfer method on the basis of an ASON (automatically switched optical network). The duty and network management transparent transfer device comprise an optical signal processing module, an SDH (synchronous digital hierarchy) overhead processing module and a DCC (data communication channel) overhead processing module. Second equipment of a factory B is further arranged between first equipment and third equipment of a factory A in the ASON and is different from equipment of the factory A, and the duty and network management transparent transfer device is connected with the first equipment, the second equipment and the third equipment by optical fibers. Optical signals of the first equipmentcan be transmitted into the optical signal processing module of the duty and network management transparent transfer device and can be converted into SDH data of electric signals, DCC overhead data inthe SDH data can be extracted in the SDH overhead processing module to obtain duty and network management information, the duty and network management information can be processed by the DCC overheadprocessing module, and overhead bytes can be retransmitted into overhead bus according to network management commands and related time sequences by the DCC overhead processing module. The DCC overhead data and business information are multiplexed and framed to obtain the SDH data, the SDN data can be converted into optical signals, and the optical signals can be transmitted to the third equipment. Duty and network management information can be transparently transferred between the first equipment and the third equipment of the factory A across the equipment of the factory B while normal business information communication is carried out.
Owner:NO 34 RES INST OF CHINA ELECTRONICS TECH GRP

Questionnaire generation method and device, computer equipment and storage medium

PendingCN114239524AFlexible extraction and storageQuestionnaire generation is efficientDatabase management systemsNatural language data processingComputer equipmentComputer program
The invention relates to a questionnaire generation method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: in response to a request instruction containing a questionnaire type, extracting a target questionnaire template corresponding to the questionnaire type in a database; in response to an editing operation on the target questionnaire template, obtaining multiple pieces of configuration information corresponding to the questionnaire architecture; respectively storing each piece of configuration information into a corresponding questionnaire information table in a database, and receiving current identification information returned by the database; historical configuration information corresponding to all historical questionnaires is stored in each questionnaire information table; target identification information is determined, and corresponding target configuration information is extracted from all questionnaire information tables of a database according to the target identification information; and combining the target configuration information according to the questionnaire architecture to generate a complete questionnaire. By adopting the method, the questionnaire generation efficiency can be improved, and questionnaire sharing and multiplexing among different users can be realized.
Owner:CHINA CONSTRUCTION BANK +1

Chart information extraction method and device and storage medium

The invention discloses a chart information extraction method and device and a storage medium, and the method comprises the steps of obtaining a to-be-extracted information chart, and carrying out thepreprocessing of the to-be-extracted information chart; extracting a transverse frame line and a longitudinal frame line of the preprocessed to-be-extracted information chart based on an opening andclosing operation principle; performing intersection operation on the extracted transverse frame lines and the extracted longitudinal frame lines, and obtaining intersection points of the to-be-extracted information chart; determining a minimum identification unit of the to-be-extracted information chart based on the intersection point, the transverse frame line and the longitudinal frame line ofthe to-be-extracted information chart; and performing text recognition on each minimum recognition unit in the to-be-extracted information chart to obtain chart information of the to-be-extracted information chart. The key information in the image table can be efficiently, flexibly and accurately extracted, and the technical effect of improving the working efficiency of power grid safety monitoring personnel for examining the related image table is achieved.
Owner:QINGYUAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID CO LTD

Leak plate molding mold and molding production method thereof

PendingCN107457886AExcellent compressive strengthAvoid corrosionDischarging arrangementMouldsRebarCorrosion
The invention discloses a leak plate molding mold and a molding production method thereof. The leak plate molding mold comprises a mold groove; and multiple sets of convex bars are arranged in the mold groove side by side. The leak plate molding mold further comprises positioning rods; and a positioning hole set for horizontally positioning the positioning rods for overhead support of reinforcement nets for molding leak plates is formed in the side wall of the mold groove. In the process of molding the leak plates, the reinforcement nets in the leak plates use the positioning rods for stable overhead support; proper gaps can be formed between the reinforcement nets and the side walls of the mold groove; the positioning rods can be flexibly pulled out at proper time in the molding process; the reinforcement nets are still kept in horizontal suspension positions under the effect of semi-molded materials after pulling; by dint of internal reinforcement of the reinforcement nets, the finally produced leak plates achieve excellent pressure resistance; and the reinforcement nets are totally wrapped in the plates to prevent corrosion by such bad environments as acid, alkali and moisture, so that the long-time use intensity of the leak plates is guaranteed, and the service life of the leak plates is greatly prolonged.
Owner:福建省东方水泥制品有限公司
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