1131results about How to "Achieve matching" patented technology

The invention provides a fingerprint identification method aiming at default that present fingerprint identification system can not identify desquamate fingerprint, which relates to the fingerprint identification techinque. The method includes steps as follows: collecting fingerprint image and extracting the fingerprint characteristic, processing characteristic matching with the fingerprint characteristic and the fingerprint template; processing characteristic updating to the fingerprint template according with the fingerprint characteristic after successful matching. The invention also provides a fingerprint identification system. A technique scheme provided by the invention has merits as follows: processing characteristic updating to the latest fingerprint template according with successful matched fingerprint characteristic that can grasp the latest fingerprint characteristic information in the fingerprint desquamate process everywhen, and assorting using original fingerprint template can realize precise match in each phase of desquamate process and non-desquamate process. The scheme is realized by processing the fingerprint image and does not depend on sensor technique, so the scheme has low cost and is suitable for various fingerprint sensors.

The invention discloses a block chain-based information-authenticating and source-tracing method. The method comprises the steps of (1) acquiring the copy of the original information to be issued by an original information publishing end; (2) generating the hash value of the copy and picking the content information of the copy at the same time; (3) creating the first transaction information based on the content information of the copy and the hash value of the copy; (4) writing the first transaction information into a center database and a block chain, or writing the first transaction information into the block chain; (5) acquiring the transshipment information released by a information transshipment end, and generating the hash value of the transshipment information; (6) comparing the hash value of the transshipment information with the hash value of the copy; if the two hash values are the same, returning a first voucher for representing the information to be true or non-tampered; if the two hash values are not the same, not returning the first voucher or returning a second voucher for representing the information to be not true or tampered. The invention further discloses a corresponding system. According to the invention, the information authentication and the source tracing can be reliably realized.

The invention relates to a method for analyzing facial expressions on the basis of motion tracking, in particular to a technique for face multi-feature tracking and expression recognition. The method comprises the following steps: pre-processing an inputted video image, and carrying out the face detection and face principle point location to determine and normalize the position of the face; modeling the face and expressions by using a three-dimensional parametric face mesh model, extracting the robust features and tracking the positions, gestures and expressions of the face in the inputted video image by combining the online learning method, so as to achieve the rapid and effective face multi-feature tracking; and taking the tracked expression parameters as the features for expression analysis; and carrying out the expression analysis by using an improved fuzzy clustering algorithm based on Gaussian distance measurement, so as to provide the fuzzy description of the expression.

The invention relates to a wide-baseline visible light camera pose estimation method. The method includes the steps that firstly, the Zhang calibration method is used, and internal references of cameras are calibrated through a plane calibration board; eight datum points on a landing runway are selected in a public visual field region of the cameras and world coordinates of the datum points are accurately measured off line through a total station; in the calibration process, cooperation identification lamps are placed in the positions of the datum points and the poses of the cameras are accurately calculated through detection of the cooperation identification lamps. According to the method, the complex natural scene characteristic of an unmanned aerial vehicle landing scene and the physical light sensing characteristic of the cameras are considered, and glare flashlights are designed and used as the cooperation identification lamps of the visible light cameras; the eight datum points are arranged on the landing runway and space coordinates of the datum points are measured through the total station according to space accuracy at a 10 <-6> m level. According to the method, a calibration result is accurate and a re-projection error on an image is below 0.5 pixel.

The invention discloses a multi-port isolating bidirectional DC-DC (direct current to direct current) converter which is used for a mixed energy storing system. The converter comprises a phase-shifting transformer and a primary side circuit and a secondary side circuit which are respectively connected with a primary side and a secondary side of the phase-shifting transformer; the secondary side circuit comprises a two-path Buck / Boost converting circuit, wherein the two-path Buck / Boost converting circuit comprises two input / output ends and two bridge arm midpoints and the two bridge arm midpoints are respectively connected with two ends of the secondary side of the phase-shifting transformer; and the primary side circuit comprises at least one two-path Buck / Boost converting circuit, wherein the two-path Buck / Boost converting circuit comprises two input / output ends and two bridge arm midpoints and the two bridge arm midpoints are respectively connected with two ends of the primary side of the phase-shifting transformer. The invention further discloses a voltage matching and controlling method of the multi-port isolating bidirectional DC-DC converter and the mixed energy storing system comprising the converter. Compared with the prior art, the multi-port isolating both-way DC-DC converter can realize complete matching of voltage at two ends of a transformer and can prolong the service lives of a storage battery and a super capacitor.

The invention discloses an intelligent control method of a cabinet system. The cabinet system comprises a cabinet, an electronic coded lock, a control module, a communication module and a user intelligent terminal, wherein the control module, the communication module and the user intelligent terminal are sequentially connected; the control module is used for controlling the electronic coded lock. The cabinet system is characterized in that the communication module is connected to a server; the server is connected to the user intelligent terminal and stores the state information of the cabinet and using account information of client software of the user intelligent terminal. The intelligent control method comprises the steps of controlling storage operation and taking operation. Due to the fact that a user terminal scans the only code to be communicated with the remote server, the server sends a control signal to control the electronic coded lock to be unlocked to open the cabinet, and intelligent opening and closing operation is realized, the problems of operation complexity and long waiting time caused by manual input are solved, a client software account is very quickly and effectively matched with a specific cabinet in the server by the way, and the cabinet is also conveniently and quickly operated.

The invention belongs to the technical field of microscopic spectrum imaging, and relates to a spectroscopic pupil laser confocal Raman spectrum testing method and device, wherein a confocal microscopic technology and a Raman spectrum detecting technology are combined. A spectroscopic pupil confocal microscopic imaging system is constructed by using rayleigh scattering light discarded in confocal Raman spectrum detection, high-resolution imaging and detection of a three-dimensional geometric position of a sample are realized; and a spectrum detection system is controlled by using an extreme point of the spectroscopic pupil confocal microscopic imaging system to be capable of accurately capturing Raman spectrum information excited by a focusing point of an objective lens, and further spectroscopic pupil confocal Raman spectrum high-space-resolution imaging and detection of image and spectrum integration are realized. The spectroscopic pupil laser confocal Raman spectrum testing method and device provide a new technical approach for high-space-resolution detection of the three-dimensional geometrical position and spectrum in a microcell, can be widely applied to the fields such as physics, chemistry, biomedicine, material science, environmental sciences, petrochemical engineering, geology, medicines, foods, criminal investigation and jewelry verification, and are capable of carrying out nondestructive identification and deep spectrum analysis of a sample.

The invention discloses an automatic search controlling method, device and system of an intelligent appliance and relates to the field of intelligent appliance control. According to the arrangement, automatic search, match and connection applied to the intelligent appliance by an intelligent terminal is achieved, and automatic control of the intelligent appliance by the intelligent terminal is realized. The automatic search control method includes that the intelligent terminal sends a first broadcast message to the intelligent appliance connected with a local area network; the intelligent appliance replies a second broadcast message to the intelligent appliance; the intelligent terminal acquires an IP (internet protocol) address of the intelligent appliance according to the second broadcast message; based on the IP address of the intelligent appliance, the intelligent terminal establishes a network connection with the intelligent appliance and controls the intelligent appliance.

The invention discloses an innovation resource information integration service platform which are mainly used for acquisition, statistics, excavation, analysis and other technologies of innovation resources, information integration and database establishing of a service terminal and butt joint of the innovation resources and service resources through platform software development; By adopting the innovation resource information integration service platform, the innovation resources can be subjected to batch acquisition and integration by applying a technical means, personalized information service can be provided for the government, enterprises, scientific research institutions, specialists, other organizations and high-end talents, meanwhile a platform technology supports interconnection and interworking and collaborative innovation performed by various organizations and the talents, and information, the talents and other resource support are provided for efficient innovation of the organizations (especially the enterprises).

The invention discloses a question answering system-based information matching method and system. The method comprises the following steps of: configuring user interactive behavior representation parameters for question answering pairs in a question answering system knowledge base; dynamically updating the user interactive behavior representation parameters according to user interactive behavior feedback information, wherein the user interactive behavior feedback information is feedback which responds to question information of the question answering system; acquiring a question candidate set in the question answering system knowledge base according to question information input by a user; sorting all pieces of question information in the question candidate set by taking the user interactive behavior representation parameters of all pieces of question information in the question candidate set as an index; and returning a predetermined number of pieces of question information which are sorted on the front side to the user. According to the method and the system, information matching speed and accuracy of the question answering system can be improved.

A method for matching file in data back-up of computer net work includes carrying out differential back-up and completer back-up as per back-up interval time selected by user after first time of completer back-up is carried out, synthesizing this time of increment back-up sent locally and last time of differential back-up to be remote differential back-up and enabling to carry out remote differential back-up by only requiring small transmission increment back-up of network band width.

The invention provides a video imaging system based on a multi-scale camera array, and a video processing method. The system comprises a control cloud platform, a video processing unit and a camera array; the camera array comprises a plurality of local cameras and at least one global reference camera; the global reference camera collects a low-resolution global reference video of a predetermined scene by using a short-focus lens, and the plurality of local cameras separately collect different local high-resolution videos in the predetermined scene by using long-focus lenses; the video processing unit is used for finding a corresponding area in the global reference camera for each local camera; aligning the local videos to the corresponding areas in the global reference video by using a nonuniform image distortion algorithm; and embedding the distorted high-resolution local videos in the low-resolution global reference video to form a global video with a relatively high resolution.

The invention discloses an information processing method and an information processing system for handwriting on paper. The method comprises the following steps of: acquiring clues of a real page currently written by a user, and determining a background page according to the clues; determining the handwriting of the user and the corresponding position of the handwriting in the background page; and associating the handwriting and / or the literal contents of the handwriting and contents at the corresponding position in the background page according to the corresponding position of the handwriting in the background page. By the method and the system, the handwriting and the background page corresponding to the handwriting can be recognized.

The invention discloses a role access control-based information system data storage layer and a building method. User name, password and login times of information system registered users are stored through a user data table; a plurality of roles with access authorities of different levels are stored through a role data table; and a matching relationship between the users and the roles is stored through a user and role relationship data table. The data tables of the data storage layer are called by an information system to realize modification of system user information and matching between the users and the roles and further fulfill the purpose of endowing and controlling the access authorities of the users.

The invention discloses a loitering detecting method in video monitoring, comprising the steps of: carrying out position-based matching pursuit on targets appearing in a video monitoring area, recording presence time or appearance times of the pursued targets, and taking the targets with the presence time or appearance times longer or more than a corresponding first set threshold as candidate loitering targets; carrying out histogram-based matching pursuit on the candidate loitering targets, recording presence time or appearance times of the pursued candidate loitering targets, and taking the target with the presence time or appearance times longer or more than a corresponding second set threshold as a loitering target. In addition, the invention also discloses a loitering detecting system in the video monitoring. The technical proposal disclosed by the invention can improve the accuracy of a detection result.

The invention discloses an active detection and recognition system and method for a human gait behavior based on semantic folding. Embedded gait behavior detection and recognition system hardware with low power consumption is built by using a three-dimensional sound field positioning system, a sole force field positioning system, an HDMI high-definition camera, a high-definition video acquisition system, a microcomputer Raspberry and the like. Gait semantic energy diagrams with timing characteristics provided by the invention contain gait time information under different situations, and the learning and prediction ability of a gait behavior cognition system can be enhanced according to a lot of gait semantic energy diagrams with timing characteristics. Meanwhile, the active detection and recognition technology for a human gait behavior based on semantic folding has extensive application prospects in various fields which mainly comprises the fields such as long-distance identity recognition, abnormal gait behavior detection, pedestrian behavior prediction and mass video retrieval, and has excellent economical and social benefits.

The invention discloses a method for describing a protocol by using an XML and a protocol resolving system built by the same, namely the method for describing the protocol by using the XML and a system which is built based on the method and is used for resolving an industrial Ethernet protocol. The method for describing the protocol by using the XML comprises two aspects, wherein one is the method for describing an Ethernet protocol format by using the XML and the other one is the method for describing a protocol suite relationship by using the XML. The system for resolving the industrial Ethernet protocol comprises two parts, namely a hardware system and a software system, wherein the hardware system comprises a network adapter and a host machine; and the software system comprises five units, namely a protocol load unit, a protocol library unit, a data capture unit, a protocol match unit and a data resolving unit. The method and the system can conveniently realize the modification and expansion of protocol contents, realize the screening, match and resolving of a multi-layer protocol, and have wide practical value and application prospect in the technical field of Ethernet.

A method for generating and organizing the source data of grid electronic map and generating the target data is disclosed, it can realize the map to match with the GP8 location information is finished on the sever, use the vector map and the engine of vector map to form the grid map file with various specification, the source data of grid map is generated, the grid map file uses the database and the file index to store the coordinate and the index of the grid map file, the target grid map specification requirement and the latitude and longitude information is transmitted by the HTTP\SOCKET\message mechanism, the map generating system will search the database or file to obtain the source data of grid map, and clip and splice to generate the target grid map and transmit to the target application; the vector map is called by the vector map engine, and read the present scale and the latitude and longitude information at the left upper corner or right upper corner; copy the map as the grip file, save the all path name of file containing the stored coordinate to the appointed store items in the scale table of the database array.

The invention discloses an unmanned aerial vehicle hovering precision measurement method based on binocular vision. The method comprises the following steps that in a calibrating stage, a camera is calibrated through a Zhang zhengyou chessboard calibration method to determine a calibration parameter to definite a calibration result parameter; in a positioning stage, when unmanned aerial vehicle hovering precision measurement is performed, a sliding rail is placed under an unmanned aerial vehicle hovering point, the binocular camera is fixed on the sliding rail in parallel according to a set distance and can move in the direction of the sliding rail, camera lenses are vertically and upwards placed, the two camera imaging planes are located at the same plane, and the optical axes of the camera imaging planes are parallel to each other; a left-eye camera body and a right-eye camera body collect unmanned aerial vehicle images and transmit the images to a computer; the computer calculates the three-dimensional position coordinates of an unmanned aerial vehicle according to the left-eye images, the right-eye images and the calibration result parameter; after hovering is finished, the hovering precision is calculated according to the three-dimensional track of the unmanned aerial vehicle. The method has the advantages that target detecting, tracking, precise matching and three-dimensional positioning of the unmanned aerial vehicle are achieved.

The invention belongs to the point cloud data registration technology in a three-dimensional measurement neighborhood, and particularly relates to an adaptive markerless three-dimensional point cloud automatic registration method. The method comprises steps of search of geometric feature points, search of image feature points, building of a registration algorithm selection model, matching of the geometric feature points based on RANSAC, exclusion of mismatched image feature points by using the RANSAC, solution of a rotation and translation matrix RT by using SVD algorithm, and completion of registration of two point clouds by using the RT matrix finally. The method can be used in measurement situations in which markers can not be attached as object feature points are used for replacing the markers for registration; the method relies on a corresponding feature point to calculate transformation matrix of a multi-view point cloud and does not need to rely on the initial gesture of the point cloud, due to the building of the registration algorithm selection model, the system can adaptively select a proper matching algorithm, thereby realizing stable registration of different measured objects.

The invention relates to a four-wheel drive pure electric vehicle hardware-in-the-loop simulation experimental system. The system comprises a drive motor and controller subsystem, an electric dynamometer and controller subsystem, torque and rotational speed sensors, a vehicle dynamic model real-time simulation subsystem and a signal detection and analysis subsystem. The system achieves pure electric vehicle four-wheel independent drive via the motor and controller subsystem, and achieves simulation of vehicle travel load via the electric dynamometer and controller subsystem. Vehicle dynamic response is achieved by operating a real-time simulation model through a real-time controller, and signal input, output and conditioning of a vehicle control unit are achieved by the aid of an FPGA (field programmable gate array). The system is capable of performing hardware-in-the-loop simulation for four-wheel drive pure electric vehicles to achieve rapid development and product testing of a vehicle drive system, and has the advantages of energy saving, safety, rapidness and low cost.

The invention relates to the field of structural catalysts, in particular to an activated carbon coating / foam silicon carbide catalyst with a three-dimensional communicated structure and a preparation method for the catalyst. The invention aims to solve the problems that hole opening is discontinuous, the catalyst and reaction products are separated, a heat transfer and mass transfer effect is poor and the like in the prior art. By taking foam silicon carbide as a catalyst carrier, an activated carbon coating covers on the surface of the foam silicon carbide, wherein the activated carbon coating is between 0.1 micron and 500 microns thick, and a metal catalysis active component is loaded on the activated carbon coating. The activated carbon coating is prepared on the surface of the foam silicon carbide with the three-dimensional communicated structure, then, the metal catalysis active component is loaded, and activating treatment is performed on the metal catalysis active component to obtain the catalyst. According to the activated carbon coating / foam silicon carbide catalyst, holes in the catalyst carrier are totally communicated, thus, an enclosure space does not exist, and a heat transfer and mass transfer process of the chemical reaction can be strengthened. The activated carbon coating / foam silicon carbide catalyst has the characteristics that the temperature field distribution of the catalytic reaction is uniform, the heat inactivation rate is low, the pressure drop is low and the like.

The present invention relates to electric control system for turbocharging of engine and the variable nozzle turbocharging control method and system features that in the electric control system,target pressure value is obtained through collecting the rotation speed, oil valve position, charging pressure and intake temperature of the engine and judging the working state of the engine. In the system, stepped motor as the executor is connected to the regulating crank of turbine nozzle ring via a link. During the transition course, the nozzle ring opening is regulated to some certain value by theexecutor through open-loop predication control; and while during stable state, closed-loop digital PID control has the charging pressure signal of intake manifold as controlled target.

The invention discloses a CPU+GPU group nuclear supercomputer system and an SIFT feature matching parallel computing method. A CPU is used for interpreting instructions of a computer, processing data in computer software and carrying out high-performance computing. A north bridge chip unit is used for providing support for the type and basic frequency of the CPU, the type and maximum capacity of an internal storage, ISA / PCI / AGP slots, ECC error correction and the like. A system storage unit is used for storing information of the data. A graphics adaptor unit is used for controlling the output of computer graphs. A GPU module is installed on the graphics adaptor unit and used for carrying out a large amount of simple parallel computing and drawing the data into graphs. A GPU storage module is used for storing collected data. Through the parallel analysis, much computing is divided and performed in the CPU and the GPU, the respective computing advantage is played, the speed of the SIFT feature matching GPU parallel algorithm is improved by nearly 30 times compared with the speed of a CPU series algorithm, the time of data processing is shortened greatly, the real-time performance is improved, and extracting and matching of remote sensing image feature points are achieved.

The invention relates to a leakage inductance current slope direct control method based on an isolation type two-way three-level converter and belongs to the field of power electronics. Leakage inductance current is directly sampled at a high speed in real time to realize direct control on the leakage inductance current; even a transformer turn ratio error and circuit parasitic parameters exist, better control on leakage inductance current slope can also be realized; thus the current stress and current-circulation loss of a circuit are reduced. The low voltage side of a main circuit is formed by a current type half-bridge topology structure with an active clamping circuit; a high voltage side adopts a three-level half-bridge topology structure; a control strategy is that output voltage, input current and the leakage inductance current are sampled, operation is performed by a digital operation controller (DSP (digital signal processor)), a duty ratio and a phase shift angle are generated by a digital PI regulator, switching tubes of primary and secondary sides are controlled, the circuit power transmission direction and the leakage inductance current slope are directly controlled, and thus the less current stress and current-circulation loss and seamless switching of two-way operation of the circuit are realized.

The invention discloses a system and method for automatic matching and remote centralized interpretation of intelligent channels for travel inspection, and the system comprises an automatic matching and remote centralized interpretation system AMRSS and an automatic basket returning system ABRS that are connected together. The method, by matching uniquely identification tag of the facial feature information and the tray, achieves accurate matching of passenger information, identification tags and image information, realizes the automatic recheck of suspicious luggage and reduces the labor intensity of the security inspectors. Through the design and allocation of multiple basket taking stages, interpretation of multiple operators and recheck of multiple openers, the efficiency of security inspection is improved, the number of passengers and the waiting time of passengers can be predicted, and the waiting time of passengers can be reduced. The cooperation of the automatic matching and remote centralized interpretation system and the automatic transmission subsystem for the travel inspection completes the jobs of people-baggage correspondence, centralized interpretation, baggage sorting and tray recycling, improves the pass rate of passengers in the travel inspection channels, realizes the management of people-baggage correspondence, and reduces the labor intensity of security inspectors.

The invention discloses a method for translating dimensions on a two-dimensional engineering drawing to a three-dimensional CAD (computer aided design) model. The method is used for solving a technical problem that a three-dimensional CAD model dimension marking method in prior art is low in efficiency. The technical scheme of the method is as follows: projecting the three-dimensional CAD model to obtain a projection view of the three-dimensional CAD model; then respectively extracting pixel information of the projection view and the two-dimensional engineering drawing, and respectively representing the projection view and the two-dimensional engineering drawing in a spatial relation drawing structure with a pixel as an apex; and finally carrying out accurate pixel matching on two spatial relation drawings. A test result shows that the method can realize accurate pixel matching and can correctly realize dimension tolerance mapping from the two-dimensional engineering drawing to the three-dimensional model. By using the method, a high-efficiency and intelligent method is provided for a condition that the three-dimensional CAD model and the two-dimensional engineering drawing which are separate in prior arts are translated into a single model with three-dimensional dimension marks.

The invention provides a charging pile system based on the internet of things and a control method of the charging pile system. The charging pile system comprises a charging station control center, a communication module, a charging pile and a battery pack information storage device. After an electric automobile is in communication connection with the charging station control center, a charging port suitable for the electric automobile is matched by the charging station control center, pairing of the electric automobile and the charging pile is completed, and the electric automobile is guided by generated pairing information to the charging position of the charging pile. According to the charging pile system based on the internet of things and the control method of the charging pile system, an applicable charging instruction is obtained through matching of the battery pack information storage device and electric automobile battery information, unstable influence on the power grid load caused by charging of the electric automobile is effectively avoided, and both the expectations of consumers for the driving distance, the performance and the reliability of the electric automobile and the expectations of an accumulator of the electric automobile for the time, the cost and the convenience which are related to charging are improved; and the pairing information guides the electric automobile to a charging area, the charging convenience and rapidness of the electric automobile are improved, and the applicability of the electric automobile in the process of generalization and popularization is guaranteed.

The invention provides a rotary ultrasonic-assisted fine electrolytic grinding and broaching device and method. According to the rotary ultrasonic-assisted fine electrolytic grinding and broaching device and method, on the basis that a pre-formed hole is obtained through electrolytic drilling and grinding by a fine electrolytic machine tool, online tool-changing operation is conducted on the machine tool to avoid positioning errors, axial ultrasonic vibration is applied to a rotary spindle of the machine tool, and electrolytic grinding and broaching are conducted on the pre-formed hole througha high-frequency pulse power supply. An electrolyte is disturbed through the cavatition and enhanced mass transfer effect of ultrasonic vibration to promote separated-out gas and other electrolytic products in a machining area to be discharged in time, so that the gas flow field and the gap electric field are more uniform, and the machining efficiency, the repeated machining precision and the surface machining quality are improved. Slight removal of workpieces is achieved through the high-frequency pulse power supply, so that the machining locality and the dimension controllability are improved, and precise adjustment of matching between electrolytic machining and mechanical grinding is facilitated. By adoption of the rotary ultrasonic-assisted fine electrolytic grinding and broaching device and method, the small hole machining precision and the surface machining quality are improved while the machining efficiency is ensured.