33 results about "Digital reference" patented technology

The invention discloses a soft rock tunnel deformation monitoring method, and relates to the technical field of tunnel construction.A target image set of a soft rock tunnel is obtained by carrying out photography and video recording on the soft rock tunnel subjected to excavation construction, and then a three-dimensional digital reference model of the soft rock tunnel is established according to the target image set; continuously carrying out photography and video recording operation on the soft rock tunnel to obtain a current image set corresponding to each acquisition moment, importing the current image set into the unit digital reference model, and comparing and analyzing the current joint trend with the joint trend model to obtain the current displacement of the geologic body; and finally, the deformation monitoring result of the soft rock tunnel is obtained according to the current displacement, so that the deformation condition of the geologic body of the soft rock tunnel can be identified in a photographing and video recording mode, a sensor does not need to be installed in the geologic body of the excavated and formed soft rock tunnel, and the monitoring cost is reduced.

The invention relates to the technical field of data reasoning, and discloses a landscape planning progress tracking method and system, and the method comprises the steps: packaging a timestamp and a geographic coordinate tag on a multi-modal original data set in a landscape planning process, and obtaining a space-time tagging original data package; eliminating noise and inconsistency in the space-time tagging original data packet; constructing a project progress state graph; identifying an attribute difference value between the project progress state map and a pre-stored project plan digital benchmark; mapping the attribute difference value to a historical multi-layer progress deviation identification rule base, judging a root source and an influence level, and generating a structured deviation analysis report; self-adaptive early warning and decision support information is generated by matching case features in the structured deviation analysis report and the historical coping strategy knowledge base; self-adaptive early warning and decision support information is transmitted to a landscape planning terminal, and a project plan digital reference is driven to be visually updated; the landscape planning progress tracking efficiency can be improved.

An integrated circuit includes a continuous time delta sigma analog-to-digital converter (CTDS ADC) and a test circuit for testing the CTDS ADC. The test circuit converts multibit digital reference data to a single-bit digital stream. The test circuit then passes the single-bit digital stream to a finite impulse response digital-to-analog converter (FIR DAC). The FIR DAC converts the single-bit digital stream to an analog test signal. The analog test signal is then passed to the CTDS ADC. The CTDS ADC converts the analog test signal to digital test data. The test circuit analyzes the digital test data to determine the accuracy of the CTDS ADC.

This invention provides a vision-based method for repairing vehicle sheet metal. The method includes: S1, constructing a 3D digital reference model of the sheet metal to be repaired, and obtaining the geometric dimensions, paint properties, and substrate mechanical parameters of intact sheet metal of the same model; S2, scanning the sheet metal to be repaired using a multimodal vision acquisition device, comparing the scanned data with the 3D digital reference model, and locating the coordinates of the area to be repaired and the type of defect; S3, starting a repair robot for targeted repair, collecting current repair data in real time during the repair process as visual feedback and core input for the reinforcement learning reward function, and dynamically adjusting the repair parameters to meet preset standards. This invention uses reinforcement learning to continuously align the repair operation with the 3D digital reference model, improving the consistency of repair quality; relying on precise scanning and positioning and real-time repair data feedback, it effectively avoids problems such as uneven paint thickness and can flexibly adapt to repair needs of different damage levels.

The invention relates to a conformity control installation (1a) for a manufacturing line of cast concrete segments comprising at least one mold (2) including a base (3) and side walls (4, 5) and means (30) for automated in-person and dimensional control of said mold (2) before the pouring of fluid concrete into it, said means comprising a movable digital image acquisition element (33) for extracting a plurality of predetermined control points, and a computer terminal (40) integrating image processing software that retrieves the plurality of captured points to generate a three-dimensional map of the inside of the mold in the form of a point cloud and then compares this map with a digital reference model in order to detect any geometric differences and indicate whether the mold conforms to said model. Figure for the abstract: Fig. 3

The invention provides a method and apparatus for receiving a simulated decoration template into a decoration print. The method comprises a similarity comparison between at least one reference image of (1) to n hyper-spectral digital reference images of a simulated decoration template and at least one actual image of (1) to n hyper-spectral digital actual images of a carrier material provided with a decoration, in which a decoration-specific contour target is adjusted, a digital template of the simulated decoration template can be output to the carrier material via the output medium such that a color deviation between at least one reference image of (1) to n reference images of the simulated decoration template and at least one actual image of (1) to n actual images of the carrier material provided with the decoration is lower than a predetermined desired value.

The invention discloses an expressway tunnel construction safety monitoring method and system, and belongs to the field of data processing.The expressway tunnel construction safety monitoring method comprises the following steps that a tunnel is logically divided into a plurality of continuous monitoring areas according to construction drawings, equipment positioning and process plans, and each independent area is divided into a plurality of continuous monitoring areas; the method has the beneficial effects that by constructing the multi-factor digital reference model library, lag judgment singly depending on a gas concentration threshold value is abandoned, and by monitoring a prospective index, namely the change rate of the gas concentration in real time, early warning can be immediately performed when the gas has an abnormal change trend due to the reduction of the ventilation efficiency; the absolute value of the gas concentration does not exceed the standard; the risk is identified before diffusion is completed in the early stage of danger accumulation, so that a time blind area from ventilation failure to traditional concentration threshold alarm is completely filled, and the timeliness of emergency response and the overall operation safety level are remarkably improved.

The invention relates to a radian control hot press molding method for an arc-shaped plate of an insulating ring of a generator. The method comprises the following steps: S1, establishing a digital reference; s2, preparing a mold; s3, blank preparation and die filling; s4, performing real-time data acquisition and cooperative control; and S5, curing and forming. The method has the following advantages that by coordinating the flow choking and guiding functions of the blank and the multi-unit collaborative segmented pressurizing procedure, glue solution overflow is effectively restrained, and the radian forming precision of the arc-shaped plate is improved.

The present application belongs to the field of automobile remanufacturing and advanced maintenance process, and particularly relates to a flexible repairing method for automobile leaf plate based on reversible thermoplastic mold, which comprises the following steps: step S100, digitizing reference surface: obtaining original surface data of automobile leaf plate through 3D scanning to generate a digital reference model; step S200, rapid generation and circulation of customized mold: material selection and pretreatment, flexible heat treatment, surface negative pressure / pressure covering plastic forming, rigidification cooling and shaping, mold resetting; step S300, clamping and in-mold precise shaping repair: using a pneumatic hammer to perform impact repair under the precise constraint of the mold; step S400, post-processing and quality verification: disassembling the mold and performing quality inspection on the repaired leaf plate; the present application realizes rapid customization and unlimited resetting of the mold by using the reversible thermoplasticity of PCL, and realizes efficient, high-precision and low-cost repair of automobile leaf plate sheet metal damage.

The invention relates to the field of partition wall construction, and particularly discloses a partition wall construction template alignment precision monitoring method and system, and the method comprises the following steps: building a BIM-based digital reference coordinate system, laying a multi-source sensor network, collecting data in real time, and carrying out environment compensation. The actual space pose of the template is obtained through data fusion and space pose calculation, deviation analysis is carried out, a grading early warning signal is generated, an adjustment scheme is automatically generated, automatic adjustment of the template is achieved through an electric adjustment device, and adjustment parameters are optimized through a machine learning algorithm; the system comprises a reference establishment module, a sensor network, a data processing center, an analysis early warning module, an adjustment execution mechanism and a human-computer interaction interface. High-precision real-time monitoring and automatic adjustment of the position and posture of the formwork can be achieved, the construction efficiency and safety are improved, and the system is suitable for various complex construction environments.

The present invention provides a method and apparatus for receiving a simulated decorative template into a decorative printing process. The method includes performing a similarity comparison between at least one reference image among (1) to n hyperspectral digital reference images of the simulated decorative template and at least one actual image among (1) to n hyperspectral digital actual images of a carrier material with decoration, wherein a decoration-specific contour target is adjusted such that a digital template of the simulated decorative template can be output onto the carrier material via an output medium, and the color deviation between at least one reference image among (1) to n reference images of the simulated decorative template and at least one actual image among (1) to n actual images of the carrier material with decoration is lower than a preset expected value.

The invention relates to a method for producing element templates for forming a template when checking value documents, in particular banknotes, of a predetermined value document type, wherein the value documents of the predetermined value document type have at least two predetermined manufacturing elements, in particular print layers and / or security elements, which partially overlap if necessary, and the element templates correspond to the manufacturing elements, wherein digital training images of training value documents of the predetermined value document type and digital reference images of reference value documents of the predetermined value document type are used, which each have pixels which are each assigned pixel data, the method having the following steps: for the training images, the positions of the manufacturing elements are each determined, and the pixels of the respective training images are assigned to the manufacturing elements using the reference images and taking into account the manufacturing element positions determined each time, for each manufacturing element, a first element template is produced which contains those pixels which are assigned to the respective manufacturing element in all training images, and for each manufacturing element, a second element template is produced which contains those pixels which are assigned to the respective manufacturing element in one or more training images. Furthermore, a checking method is described in which the element templates are used.

Systems and methods provide techniques for improving incident investigation efficiency. In various embodiments, a method includes obtaining historical query inputs associated with historical incident investigations; generating an incident investigation dataset based on the historical query inputs and respective metadata associated with the historical incident investigations; receiving, from a computing device via an application programming interface (API), a query search string; generating a response based on the query search string and the incident investigation dataset, the request response comprising a historical query input and a digital reference to the metadata for a respective historical incident investigation associated with the historical query input, wherein metadata or historical query input are within a threshold similarity to the query search string; and provisioning the response to the computing device via the API, wherein the request response causes the computing device to render a graphical user interface comprising the historical query input and digital reference.

A method for controlling presentation of metadata regarding media. A system could generate query fingerprints representing media content being presented, the media content having been identified as being a first media-content item. The system could further detect a threshold mismatch comprising at least one of the query fingerprints not matching any of first reference fingerprints known to represent the first media-content item. In response, the system could engage in new media identification, establishing that the media content is a second media-content item, and could obtain both second reference fingerprints known to represent the second media-content item and metadata regarding the second media-content item. Further, the system could validate the new identification as a condition precedent to presenting the obtained metadata, the validating including comparing with the obtained second digital reference fingerprints the at least one digital query fingerprint that did not match any of the first digital reference fingerprints.

The invention discloses a phase shift measurement method based on Moire profilometry, and the method comprises the steps: enabling a camera to synchronously collect deformation fringes containing the deformation information of an object during the projection of coding fringes; establishing a digital twinborn model of a measured object, and generating a digital reference stripe with prior contour information according to the digital twinborn model; performing digital multiplicative superposition on the reference fringes and the deformed fringes to generate moire fringes for phase calculation, and extracting moire fringe information through Butterworth low-pass filtering; and finally, a real phase is obtained through phase unwrapping and unwrapping processing and is used for actual measurement and calibration. According to the method, the strategy of'digital twin reference fringes + multi-step phase shift 'is combined, intensity noise and nonlinear errors are effectively suppressed, and the measurement precision is remarkably improved. The method is suitable for industrial detection scenes such as satellite antenna thermal deformation and the like, and micron-scale precision deformation measurement can be realized under the condition of no microscopic optical path view field.

A method and system for helping to facilitate fingerprint-based automatic content recognition when audio may be subject to dialog enhancement (DE). An example method includes, for each of multiple audio time segments, (a) a computing system generating alternate digital reference fingerprint data representing the audio time segment, including at least (i) non-DE reference fingerprint data representing the audio time segment without the audio time segment being dialog enhanced and (ii) DE reference fingerprint data representing the audio time segment with the audio time segment being dialog enhanced and (b) providing the generated alternate digital reference fingerprint data for storage in a reference-fingerprint library for use in fingerprint matching. Including the DE reference fingerprint data may help to facilitate more robust matching of query fingerprint data that represents dialog enhanced audio content.

The invention discloses a positioning construction method for a tunnel reserved rock ballast channel, and belongs to the technical field of tunnel engineering construction. According to the method, before a main tunnel is excavated, a rock ballast channel three-dimensional digital reference is established based on a design model; during construction, a total station, a laser orientation instrument and an inertial navigation system are fused for multi-source cooperative measurement, and the spatial position of a channel is obtained in real time; comparing measured data with a design model through a digital twin platform, dynamically generating a deviation correction instruction, and linking tunneling or supporting equipment to automatically adjust operation parameters; and meanwhile, the channel supporting opportunity and strength are adaptively optimized in combination with surrounding rock deformation monitoring data. According to the method, closed-loop management of measurement, analysis, regulation and verification is achieved, accumulative errors are effectively restrained, the positioning precision and the construction efficiency are improved, and the method is suitable for long and large tunnel engineering with various section forms such as a round section form, a rectangular section form and a horseshoe section form.

The invention provides a method and apparatus for adopting analog decoration templates in decoration printing, comprising comparing the similarity between at least one of (1) an hyperspectral digital reference images of the analog decoration template and at least one of (1) an actual hyperspectral digital images of a decorated substrate, wherein a decoration-specific profile target is set so that the digital template of the analog decoration template can be printed onto a substrate through an output means such that the color deviation between at least one of (1) an analog decoration template reference images and at least one of (1) an actual images of the decorated substrate is less than a specified target value.

The invention provides a satellite navigation ground base station data processing and sharing method and related equipment. The method comprises the following steps: acquiring reference information of a ground base station, wherein the reference information comprises at least one of the following items: a first grid point coordinate, a data integrity rate, a pseudo-range multipath error and a cycle slip ratio; determining a target ground base station of the digital base station from the ground base stations according to the reference information of the ground base stations; and obtaining first observation data of the target ground base station, and processing and encrypting the first observation data of the target ground base station to obtain second observation data of the digital base station. The method is used for screening out a target ground base station with relatively good observation data quality from a plurality of ground base stations, so as to generate second observation data based on first observation data of the target ground base station and provide the second observation data to a data user. Therefore, the quality of the data received by the data user can be effectively improved, and the security of the second encrypted data is ensured through encryption of the first observation data.

The invention relates to a precise grinding method and system for a glue filling area of a display module, and the method comprises the steps: carrying out the three-dimensional shape scanning of the display module containing the glue filling area, and obtaining the data of a current working surface shape; performing registration and subtraction on the current working surface shape data and the global digital reference model to generate a material margin three-dimensional distribution diagram; a three-dimensional self-adaptive machining path is generated based on the material allowance three-dimensional distribution diagram; according to the three-dimensional self-adaptive machining path, the glue supplementing area of the display module is polished; and if it is measured that the current state does not reach the target state, the steps of generating the three-dimensional self-adaptive machining path and conducting polishing machining are repeated till the target state is reached. Closed-loop control is adopted, the polishing area reaches the target state, the uncertainty of open-loop machining is eliminated, over-polishing and under-polishing are almost eradicated, and the technical problem of over-polishing or under-polishing risks in the related technology is solved.

A system and method for verifying a signature in real-time when authenticating a card-based transaction. Initially, a digital reference signature is captured on a mobile device, sent in hashed form to a rules engine, and evaluated for features such as length, time, orientation, area, and pressure changes. Subsequently, a digital transaction signature is captured on a POS terminal, sent in hashed form to the rules engine via an acquirer, and evaluated for the same features. The rules engine compares the features of the signatures. If the transaction signature is verified, the rules engine sends an authentication token to the acquirer, and the acquirer sends the token and an authorization request to an issuer. If not, the acquirer sends a denial message to the merchant. If the power level of the POS terminal is insufficient to properly capture the transaction signature for effective evaluation, then an alternative authentication method is used.

A method for producing a garment or bag that is better adapted to the body shape of the consumer whilst reducing the use of raw material as well as the time and costs involved in the creative process is disclosed. The methodincludes recording a digital reference template,generating a digital production template for the garment or bag,recording the digital production template in a database,and repeating the recording of a digital reference templated and the generation of a digital production. The method further includesEstablishing at least one selection criterion,Selecting, from the database, at least two digital production templates corresponding to the at least one selection criterion,determining the final digital production template from among the selected digital production templates, andproducing the garment or bag in accordance with the final digital production template.

Nested analog-to-digital converter (ADC) comprising: a reference ADC (310) coupled to receive an analog signal (302), the reference ADC (310) generating a digital reference output (305); a plurality of sub-ADCs (104; 304) coupled to receive the analog signal (302), the plurality of sub-ADCs (104; 304) sampling the analog signal (302) at sampling positions responsive to a clock (402, 404, 406) and generating a plurality of digital signals corresponding to a sampled portion of the analog signal (302); a calibration block (108; 308; 1016) coupled to receive the plurality of digital signals and the digital reference output (305), wherein the calibration block (108; 308; 1016) identifies at least one error value (506) between the plurality of digital signals and the digital reference output (305); and wherein a correlation basis function (510; 702) is applied to the at least one error value (506) to generate an error estimate signal (516) used to compensate for the at least one error value (506), the error value (506) being determined by a difference between at least one of the plurality of digital signals and the digital reference output (305).

A method for controlling presentation of metadata regarding media. A system could generate query fingerprints representing media content being presented, the media content having been identified as being a first media-content item. The system could further detect a threshold mismatch comprising at least one of the query fingerprints not matching any of first reference fingerprints known to represent the first media-content item. In response, the system could engage in new media identification, establishing that the media content is a second media-content item, and could obtain both second reference fingerprints known to represent the second media-content item and metadata regarding the second media-content item. Further, the system could validate the new identification as a condition precedent to presenting the obtained metadata, the validating including comparing with the obtained second digital reference fingerprints the at least one digital query fingerprint that did not match any of the first digital reference fingerprints.

Systems and methods provide techniques for improving incident investigation efficiency. In various embodiments, a method includes obtaining historical query inputs associated with historical incident investigations; generating an incident investigation dataset based on the historical query inputs and respective metadata associated with the historical incident investigations; receiving, from a computing device via an application programming interface (API), a query search string; generating a response based on the query search string and the incident investigation dataset, the request response comprising a historical query input and a digital reference to the metadata for a respective historical incident investigation associated with the historical query input, wherein metadata or historical query input are within a threshold similarity to the query search string; and provisioning the response to the computing device via the API, wherein the request response causes the computing device to render a graphical user interface comprising the historical query input and digital reference.

The invention provides a vehicle iron sheet repairing method based on visual perception, and the method comprises the steps: S1, constructing a 3D digital reference model of a to-be-repaired vehicle iron sheet, and obtaining the geometric dimension, paint surface attributes and base material mechanical parameters of the same model of intact iron sheets; s2, scanning a to-be-repaired iron sheet by adopting multi-modal visual acquisition equipment, comparing scanning data with the 3D digital reference model, and positioning coordinates of a to-be-repaired area and defect types; and S3, starting the repair robot to perform targeted repair, collecting current repair data in real time during repair as visual feedback and reinforcement learning reward function core input, and dynamically adjusting repair parameters to meet a preset standard. According to the method, the repair operation is continuously close to the 3D digital reference model through reinforcement learning, so that the repair quality consistency is improved; by means of accurate scanning positioning and real-time repair data feedback, the problems that the thickness of a paint surface is not uniform and the like are effectively solved, and the repair requirements of different damage degrees can be flexibly met.

The application discloses a method for constructing a dental restoration model based on an intraoral scanner, and applies to the technical field of data processing, and comprises the following steps: a desktop scanner is used to scan a prepared body model to obtain a digital reference model; an intraoral scanner is used to scan the prepared body model to obtain a digital experimental model, and 3D comparison analysis is performed on the model to determine the mean absolute deviation, the maximum positive average deviation and the maximum negative average deviation and obtain a color-coded graph; 3D analysis is repeatedly performed according to preset analysis conditions; all 3D analysis results are stored in a database, data deviation value analysis is performed, and a modeling data deviation adjustment library is determined; user scanning data is obtained, the user scanning data is adjusted by using the modeling data deviation adjustment library to determine modeling correction data, and the modeling correction data is used to construct a restoration model. The technical problem that the intraoral scanner has low modeling precision and poor dental restoration effect when modeling the internal structure of the oral cavity in the prior art is solved.

An analog-to-digital converter, ADC, is provided. The ADC comprises a comparator having a first input and a second input. The ADC further comprises a first digital-to-analog converter, DAC, and a second DAC configured to receive a first and a second digital reference signal, respectively. The digital reference signals (Dref) represent a signed binary value. The ADC is configured to compare input voltages (Vin), based on a first sampled input signal of a differential input signal and the first digital reference signal, and based on a second sampled input signal of the differential input signal and the second digital reference signal and, based on said comparison, adjust the reference voltage so as to approximate the differential input signal.

The present invention relates to the fields of metrology and reference material management. Disclosed is a machine-readable digital reference material certificate generation method, comprising: obtaining management data, core data, an annotation, and a document attachment on the basis of original information of a reference material; and performing timestamp endorsement and CA certificate signing to obtain a digital signature, encapsulating the management data, the core data, the annotation, the document attachment, and the digital signature to obtain a complete digital reference material certificate, and validating same to complete generation of a digital reference material certificate. In the present invention, a traditional paper-based and PDF-format reference material certificate can be converted into a machine-readable digital reference material certificate in XML format, and original information of a reference material therein can be extracted and encapsulated into a digital reference material certificate, thereby improving the management and utilization efficiency of reference material certificates in the digital world, and enabling application of the reference material certificates in various application scenarios.