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57results about How to "Judging authenticity" patented technology
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Data sharing method and system, blockchain system, and computing equipment
The invention discloses a data sharing method and system, a blockchain system, and computing equipment. The data sharing method comprises the following steps: after receiving data from a data owner, a data storer stores the data and submits basic information of the data to the blockchain system; when receiving an access request from a user, the data storer judges whether the user sending the access request has an access authority or not according to the basic information stored in the blockchain system and the access authority of the user for the data; and if the user has the access authority for the data for which the access request is sent, the data storer provides the data to the user according to the access authority. The data sharing method and system, the blockchain system and the computing equipment adopting the technical scheme have the advantages that costs and resource input can be greatly reduced, and global sharing control for the data can be achieved.
Owner:深圳和信中欧科技有限公司
Human face comparison method
InactiveCN101964064AImprove accuracyImprove robustnessImage analysisCharacter and pattern recognitionPattern recognitionMultiple frame
The invention discloses a human face characteristic comparison method. The method comprises the following steps of: tracking a human face to acquire characteristic points and extracting detailed human face characteristic data; comparing human faces, namely comparing the human face characteristic data with the characteristic data of each human face in a human face database to acquire the similarity; judging whether a matched face has been found, wherein delta is a similarity threshold value; if Smax is more than delta, judging that the input face is matched with the face k' in the database; judging whether an expression is changed obviously or not; performing analysis according to continuous multi-frame human face characteristic points which comprise but not limited to the opening and the closing of a mouth and the opening and the closing of eyes; and judging whether the human face expression is changed obviously or not and outputting the compared human face. The human face characteristic comparison method belongs to the technical field of biological feature identification, is applied to human face tracking and comparison and is widely applied to various human face comparison systems.
Owner:SHANGHAI YINGSUI NETWORK TECH
Knowledge graph guided false news detection method
ActiveCN111061843AJudging authenticityNatural language data processingNeural architecturesAttention modelData set
The invention discloses a knowledge graph guided false news detection method which comprises the following steps: step 1, based on a false news detection data set, constructing a knowledge graph as background knowledge of false news detection, and pre-training a knowledge graph embedding model; step 2, extracting entities in a news text to be detected, and connecting the entities to the knowledgegraph; step 3, based on the news text and the entity, obtaining word level enhanced representation of the news text, and extracting news text word level features based on an attention mechanism; step4, obtaining news text word level representation, and extracting news text word level features based on an attention mechanism; step 5, based on the entity attention model, extracting entity featuresin the news text; and step 6, fusing the word-level features, the character-level features and the entity features of the news text to be detected, and performing authenticity detection on the news text to be detected. According to the method, the knowledge graph is introduced to guide the deep learning model to perform false news detection, so that the model recognition accuracy and generalization performance are improved.
Owner:WUHAN UNIV
Campus personnel safety management system based on deep learning and face recognition features
InactiveCN110910549ARapid and Accurate CollectionEliminate the effects ofRegistering/indicating time of eventsCharacter and pattern recognitionEngineeringKnowledge management
The invention relates to a campus personnel safety management system based on deep learning and face recognition features, which comprises a background management system and a channel group consistingof a plurality of access control systems, the background management system comprises teacher and student card information and attendance management, embedded equipment information maintenance and face acquisition App; the channel groups are divided into barrier channel groups and barrier-free channel groups, wherein the barrier channel is provided with card swiping equipment or video recognitionequipment, the barrier-free channel group is provided with video identification equipment and a high-definition monitoring camera; when students and teachers swipe campus cards and pass through the barrier channel group, the card swiping equipment collects information of campus cards or the video recognition equipment collects face images of passing persons. The identification equipment carries out comparison and identification on campus card identification codes preset in a background system database by students and teachers or personal photo information stored in the database according to anidentification method, so as to judge whether the students enter school, leave school, get in and out of dormitories through the channel group and whether the students and teachers normally work or not.
Owner:江苏高泰软件技术有限公司 +1
Message authentication method, equipment, system and medium
InactiveCN109639431AJudging authenticityUser identity/authority verificationComputer hardwareMessage authentication code
The invention provides a message authentication method. The method includes a first terminal, a second terminal and a third terminal, and includes: using scalability of a civil navigation message format to write a key K<m-i>, which is of encrypting [m-i]-th navigation data, into a later-generated m-th authentication navigation signal by the second terminal, writing an encryption result into a m-iauthentication navigation signal, and sending the same to the third terminal; extracting the key K<m-i> in the received m-th authentication navigation signal by the third terminal, using the key K<m-i> to re-encrypt received [m-i]-th navigation data, and if an encryption result is the same as the encryption result in the m-i authentication navigation signal, determining that the [m-i]-th navigation data pass verification, and if the encryption results are not the same, determining that the [m-i]-th navigation data do not pass verification. An effect of completing verification on the navigationdata in a case of not increasing equipment complexity is realized. On another aspect, the invention also provides electronic equipment, a system and a computer-readable medium which execute or storethe above authentication method.
Owner:ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI
Multi-wavelength near-infrared fluorescence quantum dot detection device
InactiveCN102661940AJudging authenticityEasy to productizeFluorescence/phosphorescenceMicrocontrollerMicrocomputer
The invention discloses a multi-wavelength near-infrared fluorescence quantum dot detection device, comprising a fluorescence scanning module, a translation motor and a signal analysis processing module. The fluorescence scanning module comprises a laser diode, a light filter, a stepping motor, a chromatic dispersion device and a photomultiplier; the laser diode is arranged in front of a fluorescence quantum dot bar-shaped code, and an emitted light direction of the laser diode is vertical with the surface of the bar-shaped code; the light filter, the chromatic dispersion device and the photomultiplier are sequentially arranged along a reflection fluorescence direction; the translation motor drives the fluorescence scanning module to entirely move; the signal analysis processing module comprises an A / D (Analogue / Digital) converting module, a single chip microcomputer module, a key module and a display module; the A / D converting module carries out A / D conversion on electric signals of the photomultiplier, and then sends the converted electric signals into the single chip microcomputer module; and a result is sent to the display module after judgment. The detection device can scan the one-dimensional bar-shaped code with the multi-wavelength near-infrared fluorescence quantum dot to obtain encoded fluorescence information contained in the bar-shaped code, and can carry out analysis comparison and judge whether merchandise is true or false.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
False news identification method based on news-comment correlation analysis
PendingCN111639252AImprove predictive performanceAccurately obtainedNatural language data processingNeural architecturesFeature vectorAlgorithm
The invention belongs to the field of news detection, in particular to a false news recognition method based on news-comment relevance analysis. The method comprises the following steps: constructinga two-dimensional news feature matrix based on the content of each text clause in news, constructing a one-dimensional feature vector of each comment according to the content of each comment, and constructing a plurality of comment trees by taking each initial comment as a root node and each reply comment as a sub-node; combining each node feature vector in each comment tree with the father node context associated feature vector thereof, calculating all leaf node context associated feature vectors in the comment tree and performing weighted calculation to obtain a comment tree feature vector,and forming a two-dimensional comment feature matrix by all the comment tree feature vectors; and matching the relevance between the news feature matrix and the comment feature matrix to obtain a newsfeature vector and a comment feature vector so as to judge the authenticity of news. The method makes full use of news texts and information generated in the propagation process of the news texts, ishigh in accuracy and adapts to large-scale social networks.
Owner:HUAZHONG UNIV OF SCI & TECH
Channel management method and system
The embodiment of the invention provides a channel management method and system, belonging to the data processing field. The method comprises the following steps: obtaining a reporting request from achannel broker terminal device, wherein the reporting request includes basic information of a reporting user and basic information of a channel broker; obtaining the distance between the channel broker terminal equipment and the building disk based on the request for submission and standby; obtaining a first judgment result for characterizing whether the distance is greater than a preset distancebased on the distance and the preset distance; when the first determination result is yes, determining that the backup request is successful. By judging whether the distance between the channel brokerterminal and the building is greater than the preset distance, when yes, it is judged that the reporting request sent by the channel broker terminal is successful, so that the authenticity of the reporting request sent by the channel broker terminal can be accurately judged, and the channel broker can be prevented from defrauding the commission by reporting the naturally visited customer in the channel reporting manner.
Owner:重庆锐云科技有限公司
Composition for Anti-counterfeit ink, Anti-counterfeit ink, printed article for counterfeit prevention, and method of producing composition for Anti-counterfeit ink
ActiveCN108779357AIncrease contrastGood light fastnessInksTungsten compoundsNanotechnologyVisible spectrum
Provided are a composition for anti-counterfeit ink, said composition transmitting visible light and absorbing infrared light, thereby allowing the authenticity of a printed article to be judged. Alsoprovided are an anti-counterfeit ink and a printed article for counterfeit prevention. The present invention provides a composition for anti-counterfeit ink, said composition including ultrafine particles of a complex tungsten oxide, wherein, when the XRD peak intensity associated with a (220) surface of a silicon powder reference sample (640c, manufactured by NIST) is given a value of 1, the relative value of the XRD peak top intensity of the ultrafine particles of the complex tungsten oxide is 0.13 or greater. The present invention also provides an anti-counterfeit ink, a printed article for counterfeit prevention, and a method of producing the composition for anti-counterfeit ink.
Owner:SUMITOMO METAL MINING CO LTD
Rolling bearing fault diagnosis method based on SA-ACWGAN-GP
PendingCN113869208AGood fault diagnosisEasy to learnMachine part testingCharacter and pattern recognitionCategory recognitionNeural network nn
The invention discloses a rolling bearing fault diagnosis method based on SA-ACWGAN-GP, and relates to the technical field of fault diagnosis. The method comprises the steps: firstly collecting one-dimensional time domain vibration data of a bearing, converting the one-dimensional time domain vibration data into a two-dimensional frequency domain feature gray-scale map through fast Fourier transform, and taking a convolutional neural network as a network structure of a model to avoid gradient disappearance; secondly, constructing a model with a proper number of layers and initializing parameters, and inputting the training set into the model for training until the number of iterations is reached; and finally, applying the trained model to rolling bearing fault diagnosis. According to the method, an original ACGAN framework is improved, a Wasserstein distance and gradient penalty are introduced, the characteristics of periodicity and time sequence of a rolling bearing vibration signal are considered, and the precision of bearing fault feature extraction and fault category recognition is improved by combining a self-attention mechanism and ACWGAN-GP.
Owner:JIANGNAN UNIV
Fingerprint anti-counterfeiting method and fingerprint identification device
InactiveCN104794461AImprove anti-counterfeitingJudging authenticityCharacter and pattern recognitionPattern recognitionTransmittance
The invention discloses a fingerprint anti-counterfeiting method and a fingerprint identification device. The fingerprint anti-counterfeiting method is suitable for the fingerprint identification device provided with a photosensitive element. The fingerprint anti-counterfeiting method comprises the following steps detecting a variable quantity of transmittance of a finger, judging whether the finger is real according to whether the variable quantity of the transmittance of the finger is in a preset scope, and performing fingerprint induction on the finger when the finger is judged to be real. Through detection of the variable quantity of the transmittance of the finger, and according to the fact that whether the detected variable quantity of the transmittance is in the preset scope, whether is finger is real is judged.
Owner:AU OPTRONICS CORP
Address information verification method and device
PendingCN111274408AJudging authenticityGeographical information databasesText database queryingGraph basedEngineering
The embodiment of the invention discloses an address information verification method and device. The method comprises the steps that first address information provided by a user is received, and the first address information is compared with at least one piece of second address information, obtained from different channels, of the user; when the comparison result difference exceeds a preset threshold value, a first sub-graph based on the first address information and a second sub-graph based on the second address information are constructed from a user relationship graph; and calculating the similarity between the first sub-map and the second sub-map, and determining the authenticity of the first address information.
Owner:广州拉卡拉信息技术有限公司
Community detection method based on block chain social platform
ActiveCN110009519AValid and Reasonable Abnormal BehaviorJudging authenticityData processing applicationsCharacter and pattern recognitionDirected graphInternet privacy
The invention discloses a community detection method based on a block chain social platform, and the method comprises the following steps: 1, obtaining all user addresses and account transfer information of the user addresses on the block chain social platform, and building an account transfer relation digraph according to the account transfer relation among the user addresses; 2, finding out abnormal points and / or abnormal paths appearing in the transfer relation directed graph, and confirming abnormal user information with abnormal transfer behaviors according to the found abnormal points and / or abnormal paths; 3, acquiring operation information of all users on the block chain social platform; 4, performing clustering analysis on the acquired operation information according to the time dimension, and searching for outlier user information which is greatly different from the normal behavior mode; and 5, aggregating the abnormal user information and the outlier user information in a weighted summation manner to obtain non-real user information and / or user information with low activeness. The abnormal behavior of the user is effectively and reasonably detected so as to judge the authenticity and effectiveness of the user.
Owner:上海七印信息科技有限公司
A method and a system for identifying behavior characteristic credibility based on a constructed comparison threshold
InactiveCN109636233AJudging authenticityJudgment of credibilityResourcesMarket data gatheringPositive sampleThird party
The invention discloses a method and a system for identifying behavior characteristic credibility based on a constructed comparison threshold, belongs to the technical field of sample data acquisitionand analysis, and solves the problem that the authenticity and credibility of data cannot be judged by comparing information with third-party data or performing data cross comparison in the prior art. The method comprises the following steps of: acquiring data parameters of answers familiar to a user from a text input control, namely acquiring a positive sample; Carrying out derivative variable analysis on the collected positive sample, and expanding a targeted variable; And finding out the universality of targeted variables to serve as a final comparison threshold range; Comparing the inputinformation of the user to be identified with the threshold range to obtain an abnormality judgment.. The text input content collecting method and the text input content collecting device are used forcollecting the text input content at the mobile device end.
Owner:SICHUAN XW BANK CO LTD
Thermal transfer printer, upper computer, consumable encryption system and consumable encryption method
PendingCN111125740AEliminate the possibility of exposure to third partiesImplement sync verificationDigital data protectionDigital data authenticationThird partyComputer printing
The invention discloses a thermal transfer printer, an upper computer, a consumable encryption system and a consumable encryption method, and relates to the field of thermal transfer printing. The thermal transfer printer comprises a printer mainboard and at least one card reader, an onboard IC card and a micro-control unit are arranged on the printer mainboard, the micro-control unit is connectedwith the onboard IC card and each card reader, and the micro-control unit is further connected with an upper computer; the card reader is used for acquiring first encrypted data of an external IC card arranged on the consumable; and the micro-control unit is used for reading the second encrypted data of the onboard IC card, sending the first encrypted data and the second encrypted data to the upper computer, and receiving the authenticity of the consumable returned by the upper computer and judged according to the first encrypted data and the second encrypted data. The thermal transfer printer is suitable for heat transfer printing, an attacker can be prevented from intercepting plaintext information from a printer mainboard and cracking the plaintext information, the safety is higher, and the possibility that an encryption and decryption algorithm is exposed to a third party due to cracking of the onboard micro-control unit is eradicated.
Owner:湖南鼎一致远科技发展有限公司
Apparatus and method for inlaying machine-readable watermark into picture
InactiveCN1837955AEasy to distinguishJudging authenticityPhotography auxillary processesCharacter and pattern recognitionPattern recognitionGraphics
This invention relates to an apparatus and method for inlaying machine-readable watermark into picture. To embed an invisible false proof mark, with a special illuminating beam coder and coding background screen, embedding a random illuminated coded watermark pattern and background coded watermark pattern, as well as the (1) object shape, (2) character and false proof mark, and (3) self-defined mark of the shooting field, all into the photo in the exposing moment based on the optical synthesis principle. To check the mark, converting the photo into a digital image by a photo-electric device, and using the machine-read device to extract the watermark and hidden information with the key for decision. This invention provides technical guarantee to opposite department.
Owner:HUNAN TONGSEN TECH
Card-making device, server and card-making method of artwork anti-fake smart card
ActiveCN104933580ADoes not affect aestheticsJudging authenticityNear-field transmissionCommerceCommunication unitSmart card
The application discloses a card-making device of an artwork anti-fake smart card. The card-making device comprises a processor, a storage unit, a communication unit, an interacting unit, an artwork information acquiring unit and a card printer; an id and a device public key are stored in the storage unit; the artwork information acquiring unit comprises a chamber, a rotary table for loading the artwork is arranged in the chamber; the top, the bottom and the sides of the chambers are provided with at least one camera device; the artwork information acquiring unit further comprises a weighing device for acquiring the weight of the artwork; the card printer is used for reading-writing the smart card to finish the manufacturing of the artwork anti-fake smart card. The application further discloses a server and card-making method of the artwork anti-fake smart card. One anti-fake smart card can be manufactured for each artwork in the premise of not damaging the artwork and not influencing the appearance of the artwork, and detailed information of the artwork is stored in the server. The anti-fake smart card is used for displaying and transacting together with the artwork and can be used for judging the true or false of the artwork.
Owner:沈文俊
Holographic paper information anti-counterfeit label
InactiveCN104751735ASolve non-degradableOvercoming the problem of not being able to print barcodesStampsIdentification meansBiochemical engineeringPaper based
The invention provides a holographic paper information anti-counterfeit label and belongs to the field of anti-counterfeit labels. The holographic paper information anti-counterfeit label comprises a paper base layer; base paper, an adhesive layer, a coloring layer, an anti-counterfeit code layer and an isolation layer are arranged below the paper base layer from bottom to up in turn; a holographic layer, a printing layer, a variable digital layer and a protection layer are arranged above the paper base layer from bottom to top in turn; the holographic layer can be degraded and cannot be utilized again. According to the holographic paper information anti-counterfeit label, the problem that the anti-counterfeiting is cracked can be solved due to the multiple anti-counterfeiting.
Owner:SHANDONG TAIBAO PREVENTING COUNTERFEIT
System and method for judging authenticity of automotive air conditioner refrigerant
ActiveCN104807507AJudging authenticityAdd signal processing moduleMeasurement devicesAutomobile air conditioningDisplay device
The invention discloses a system and a method for judging authenticity of an automotive air conditioner refrigerant. The system comprises a refrigerant temperature sensor, a refrigerant pressure sensor and a signal processing module, wherein the refrigerant temperature sensor is used for collecting temperature signals of the refrigerant; the refrigerant pressure sensor is used for collecting pressure signals of the refrigerant; the signal processing module comprises a memorizer, a controller and a display; the controller is respectively connected to the refrigerant temperature sensor, the refrigerant pressure sensor, the memorizer and the display; the controller is used for receiving pressure signals and judging whether the pressure value of the refrigerant is gradually increased from being zero or near zero to a predetermined pressure value, and if yes, determining that the air conditioner system is refilled with the refrigerant once; the controller is further used for judging whether the same group of collected pressure values is in the allowable pressure range according to collected temperature; if the same group of collected pressure values is in the allowable pressure range, the refrigerant is true and a timer starts a new turn of timing; if the same group of collected pressure values is not in the allowable pressure range, the refrigerant is false and the timer starts timing. The system and the method are capable of judging the authenticity of the filled refrigerant.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD
Ticket printing method and device, and application
The invention relates to the field of communication, and discloses a ticket printing method and device, and application. According to the invention, the method comprises the following steps: obtaining the start space coordinates of a vehicle at a start point when a signal for representing the start is detected; obtaining the end space coordinates of the vehicle at an end point when a signal for representing the end is detected; generating a graphical recognition code, wherein the graphical recognition code comprises the information of the start and end space coordinates; and printing the graphical recognition code on a ticket. The method can bring convenience to an auditor for judging the authenticity of reimbursing bill information, and protects the travel privacy of the user to a certain degree.
Owner:QIANXUN SPATIAL INTELLIGENCE INC
Anti-counterfeiting recognition device and method for filter element
PendingCN111967553AEasy to read and writeAvoid duplication of illegal useCo-operative working arrangementsWater/sewage treatmentIdentification deviceEmbedded system
The invention relates to an anti-counterfeiting recognition device and method for a filter element. The anti-counterfeiting recognition device for the filter element comprises a water purifier body, afilter element body, a label, a read-write module, a WIFI module and a main control board, the main control board can obtain data in the label through the read-write module and transmit the data to acloud or an app through the WIFI module; and the main control board can record the use duration of the filter element body according to the working duration of the water purifier body, and write theuse duration information data of the filter element body into the label through the read-write module. The service life of the filter element body and the service life of the filter element are checked through the cloud or the app, so that the authenticity of the filter element is distinguished, and whether the filter element is used or not is distinguished.
Owner:GUANGDONG WATER SHIELD HEALTH TECH CO LTD
OCT fingerprint section image authenticity detection method based on reconstruction difference
PendingCN114581963AReduce the cost of trainingImprove feature discriminationNeural learning methodsAcquiring/reconising fingerprints/palmprintsCollection systemEngineering
The invention discloses an OCT fingerprint section image authenticity detection method based on reconstruction difference, and the method comprises the steps: S1, constructing a full convolutional neural network model which comprises an encoder, a generator and a feature extractor; s2, collecting images collected by an OCT system, and after preprocessing is completed, randomly selecting 70% of positive sample images as training data; selecting the other 30% of positive sample images and negative sample images, and taking the images as test data after quantity equalization; s3, training a network model; selecting the divided training image as input data, and setting a loss function for optimizing an encoder and a generator; setting comparison loss for optimizing the feature extractor; performing multi-round training on the established network model, updating and optimizing model weight parameters through back propagation until a loss function tends to converge, and stopping training; s4, testing the network model; and applying the trained network model, selecting a test data input model for testing, and performing authenticity judgment on an input image according to a set threshold value.
Owner:ZHEJIANG UNIV OF TECH
Transaction snapshot verification method and device, and computer-readable storage medium
ActiveCN109544170AJudging authenticityGuarantee property securityProtocol authorisationValidation methodsApplication software
The invention discloses a transaction snapshot verification method and device and a computer-readable storage medium, wherein, the method comprises the steps of monitoring transaction information andextracting a transaction snapshot in the transaction information; Then, identifying transaction attributes of the transaction snapshot, wherein the transaction attributes include a transaction platform, a transaction type, a transaction object, and a transaction result; Then, caling an application program corresponding to the transaction platform, and obtaining a reference snapshot according to the transaction type and the transaction object simulation; Finally, comparing the transaction snapshot and the reference snapshot, and if the transaction snapshot and the reference snapshot are the same, generating a verification identification of the transaction result. A humanized transaction snapshot verification method is implemented, which enables the user to quickly and conveniently judge theauthenticity of the transaction snapshot when receiving the transaction snapshot sent by the other party, thereby ensuring the property security of the user.
Owner:NUBIA TECHNOLOGY CO LTD
Method and device for detecting motion states of robot joints
ActiveCN113043325ATrue dynamic motion characteristicsJudging authenticityProgramme-controlled manipulatorJoints movementDynamic motion
The invention relates to the technical field of automatic detection, and provides a method and a device for detecting motion states of robot joints. The method comprises the following steps: detecting a circle center coordinate of an inertia loading unit, a coordinate of a tail end and a coordinate of the tail end after rating of standard inertia M through the inertia loading unit; separately calculating a theoretical value and an actual value of a strain signal acquisition unit in a signal acquisition module according to the coordinate of the tail end and the circle center coordinate; and controlling motion of detected joints according to instructions of an upper computer, and recording torques Tn of different motion moments in movement processes of the detected joints so as to determine the motion states of the detected joints according to the torques. Through the detection method provided by the invention, the stress states of collaborative robot joints at every moment can be accurately measured, and through calculation of a formula, the real dynamic motion properties of the joints can be acquired, and deviation of the instructions input by a driver can be contrasted by utilizing the calculated real-time motion properties of the joints, so that the actual performance of the joints can be quickly judged.
Owner:SHENYANG SIASUN ROBOT & AUTOMATION
QR code anti-counterfeiting method and device based on multi-code one-item product
PendingCN112308576AJudging authenticityScanning time is lateCo-operative working arrangementsCommerceProgramming languageAlgorithm
Owner:BEIJING JINHER SOFTWARE
Method for comparing steel seal integrity by comparing pixels in point-to-point
InactiveCN102044074ASolve the problem of comparison troubleJudging authenticityImage analysisPattern recognitionErrors and residuals
The invention relates to actual application of a technology for comparing pixels in point-to-point to the public security traffic control industry. In a system with a C / S (Client / Server) architecture, the comparison of the authenticity of scanning pictures of two seals or steel seals by naked eyes is always trouble and the errors exist. According to the technology, the two scanning pictures are divided into a plurality of pixel points according to the sizes of the images and each pixel point is numbered by using an API (Application Program Interface) technology of WINDOWS, then the pixels at the same position are subjected to three primary-color comparison and the similarity can be calculated. Since the completely identity of the two scanning parts is impossible, various similarities are accumulated, the average value of the similarities is solved and finally the authenticity of the two seals can be judged by the user according to the similarity value.
Owner:ZHENJIANG JINGYING SOFTWARE TECH
False data identification method based on digital watermarking technology
InactiveCN102647713AImprove securityJudging authenticityNetwork topologiesSecurity arrangementMessage authentication codeData mining
The invention relates to a false data identification method based on a digital watermarking technology. The false data identification method comprises the following steps: converging perceptual data sent by each collecting node by a cluster-head node after a network is initialized; searching identification watermark information of converged data from nodes in the cluster; processing witness watermark information provided by t witness nodes, and embedding the witness watermark information into the converged data; and after the data reaches a base station, extracting and generating witness watermarks from the received data by the base station so as to judge whether the converged data is false data or not. According to the false data identification method, the false data can be effectively identified without depending on the message authentication code (MAC) in the traditional identification method.
Owner:NANJING UNIV OF POSTS & TELECOMM
Performance testing device for pressure sensor production
ActiveCN114061831AJudgment reliabilityJudging authenticityFluid pressure measurementEngineeringMechanical engineering
Owner:WUHAN FINEMEMS
Handwriting recognition and judgment method and system based on knowledge transfer learning
InactiveCN119649390Ajudging authenticityDescribe shape characteristics accuratelyBiological modelsEnergy efficient computingPattern recognitionHandwriting
The invention discloses a handwriting recognition and judgment method and system based on knowledge transfer learning, and relates to the field of handwriting recognition. Establishing a rectangular plane coordinate system, calculating a curvature and an average curvature, comparing the curvature and the average curvature with a preset threshold value, judging stroke types, and counting linear strokes and the total stroke number; calculating a vector included angle and an angle average value; the total handwriting length, the average acceleration and the handwriting generation rate are obtained in combination with real handwriting sample data, and then a comprehensive index is calculated; respectively calculating an average pressure value and a pressure variance, further calculating a comprehensive pressure index, and calculating a handwriting feature index and a writer identity authenticity score according to the comprehensive pressure index; calculating a score average value and a score standard deviation of the identity authenticity of the writer, and obtaining a handwriting authenticity index threshold value; calculating an identity authenticity score of the to-be-judged writer, and comparing the score with a handwriting authenticity index threshold to judge the authenticity of the handwriting; according to the method, handwriting recognition and authenticity judgment can be more accurately carried out.
Owner:GUANGZHOU CITY CONSTR COLLEGE
Bank note processing device capable of discriminating issuing dates of bank notes
InactiveCN104036580AJudging authenticityValid readComplete banking machinesPaper-money testing devicesEngineeringExternal database
The invention discloses a bank note processing device capable of discriminating issuing dates of bank notes. The bank note processing device capable of discriminating the issuing dates of the tank notes comprises a bottom belt, a push plate and a temporary storage box. The surface of the bottom belt, which is arranged above a bottom plate, supports the bottom surfaces of the bank notes; the push plate pushes and presses the paper notes in a gathering direction; the temporary storage box is composed of a top late and side walls. The bank note processing device also comprises a deviation operating device, which rotates from the protrusion of the bottom belt to the center of the deviation operating device; when being in contact with the deviation operating device, the bank notes gathered in the temporary storage box move towards the center of the temporary storage box through the friction force of the deviation operating device. The bank note processing device further comprises a detecting sensor for discriminating the issuing dates of the bank notes, which is arranged inside the temporary storage box. By means of an infrared sensor, the bank note processing device capable of discriminating the issuing dates of the bank notes can effectively read the issuing dates of the bank notes, then transmit and store the information data of the issuing dates into a recording module, and achieve signal connection with an external database through the recording module.
Owner:SHANGHAI GOOAO ELECTRONIC TECHNOLOGY CORP