24results about How to "Ensure data consistency" patented technology

The application discloses a kind of highway maintenance digital twinborn application system construction method and system, it is related to digital twinborn technical field, the steps of this method include: real-time acquisition of the multi-source perception data of highway section, and introduce constraint engine, to highway three-dimensional entity construction, generate several three-dimensional sub-image model;Among them, multi-source perception data includes highway image, highway laser point cloud and component attribute;Based on three-dimensional sub-image model, abstractly constructed to form topological space, adopt interpolation algorithm to generate datum curve, and combine the grid vertex of three-dimensional sub-image model, identify envelope boundary, to execute cross section scanning and generate target rendering road;Based on target rendering road, identify disease area, and based on disease area introduce preset maintenance rule, through semantic mounting mapping back to topological space, form digital twinborn application system;The application improves the efficiency of highway maintenance management, improves the computing power and rendering performance of three-dimensional rendering.

The invention discloses an ice rink detection trolley based on UWB positioning and a detection method thereof, and relates to the technical field of automatic detection robots. The intelligent trolley body realizes motion control through a path planning result, the vehicle-mounted NUC lower computer cooperates with the remote control upper computer to realize remote control and data reading, the UWB positioning module cooperates with the UWB base station to solve the current position, the laser radar sensor is used for obstacle detection and local path re-planning, the IMU attitude sensor acquires an attitude angle, and the vehicle-mounted NUC lower computer cooperates with the remote control upper computer to realize remote control and data reading. The temperature and humidity sensor, the illumination sensor and the infrared temperature sensor are used for respectively measuring environment temperature and humidity, illumination intensity above the ice surface and ice surface temperature, and the communication module is used for realizing real-time data transmission. Multiple sensors are integrated and carried on the basis of an intelligent trolley body, the automation degree is improved, manual intervention is reduced, the positioning precision and repeatability of a detection point location can be guaranteed, the dynamic obstacle avoidance capacity is achieved in combination with path planning, and one-time synchronous collection of multiple parameters of a single point location is achieved.

This invention relates to a constant pressure control system for an optical cavity based on pump-valve coordination and water immersion sensing, and its active protection method. Belonging to the fields of precision instrument control and industrial automation, the system integrates an electronically controlled proportional valve and an air pump through a pump-valve coordinated pressure control unit. It dynamically adjusts the intake and exhaust flow rates based on an adaptive PID algorithm and a coordinated allocation function, achieving high-precision, rapid, bidirectional adjustment of the optical cavity pressure. Simultaneously, it employs a dual environmental sensing unit including visual perception and capacitive liquid level sensing, which executes constant pressure control and active anti-intrusion monitoring in parallel through an intelligent coordinated control unit. When visual detection identifies a risk of water intrusion, the system proactively limits the pump speed; when the capacitive sensor detects liquid water intrusion, it immediately executes an emergency shutdown. This solves the problem of difficulty in coordinating pressure control and safety assurance in traditional technologies, achieving a unified approach of long-term precise constant pressure and active contamination protection, significantly improving the system's reliability, safety, and intelligence level under complex operating conditions.

The application provides an execution body data online synchronization system, method, medium, program product and node device suitable for a mimic environment, and an innovative solution is proposed for the business continuity problem in the execution body synchronization process, which greatly improves the efficiency and reliability of data synchronization. By adopting advanced synchronization technology, the application can realize instant online synchronization of data during the online process of the execution body, and ensure seamless connection of the business process. Specifically, the application significantly reduces the business interruption time to below 10 milliseconds, which not only meets the efficient business demand, but also reaches the level of almost imperceptible business interruption for users. This almost imperceptible synchronization technology not only improves the user experience, but also provides strong protection for the business continuity and data consistency of enterprises. In the wave of digital transformation, the application of the application will bring revolutionary changes to various industries.

The invention relates to the technical field of databases, and discloses a database table foreign key association reconstruction method and device. The method comprises the steps that columns of multiple target data tables are combined in pairs to generate column pairs, and a first set is constructed based on all the column pairs; pruning the first set based on the target unique key through the target large language model; constructing a second set based on column pairs reserved after pruning; performing foreign key association detection on the column pairs in the second set through the target large language model to obtain a detection result; traversing all the column pairs with foreign key association, and deleting at least one column pair with foreign key association through the target large language model under the condition that foreign key conflicts exist between the column pairs so as to eliminate the foreign key conflicts; under the condition that foreign key conflicts do not exist between the column pairs, foreign key association is reconstructed for the multiple target data tables. By adopting the method, the accuracy and generalization of foreign key association reconstruction of the database can be improved, and the reconstruction quality is improved.

The application discloses a kind of multi-source big data acquisition and pre-processing database construction method and system, it is related to database technical field, the present application completes multi-source heterogeneous data acquisition using edge-center two-level distributed architecture, and the security of data transmission is guaranteed by transmission encryption and integrity check mechanism, hierarchical pre-processing is carried out to data to realize heterogeneous data semantic alignment and multidimensional fusion;Distributed hybrid storage architecture is constructed, adaptive database index mechanism is set, and through multidimensional data quality evaluation, the incremental update and full-amount synchronization of database are realized.The present application can realize the unified collection of various source data, standardized processing, effectively break the data island barrier, significantly improve data processing efficiency and storage running performance, and stably guarantee the overall data quality and data consistency of database.

The application relates to the computer technical field, and provides a cache break protection method and system, an electronic device and a storage medium, the method comprises the following steps: responding to a data request, and analyzing out to-be-requested data in the data request; querying the to-be-requested data in redis to obtain a query result; querying a first mysql according to the query result; the first mysql is a temporary key value storage position. The cache break protection method provided by the application queries through the interaction and cooperation of redis and mysql, the number of times of occurrence of the cache break condition is reduced, server unavailability accidents are avoided, the risk of avoiding deadlocks is realized, and data consistency is ensured.

The invention belongs to the technical field of workstation systems, and particularly relates to a work ticket self-service system and a use method thereof. Through the cooperation of the execution item login system and the execution permission approval unit, the user permission is locked from an execution port corresponding to the permission, and secondary approval is performed in combination with the real-time state of the equipment read by the wired signal acquisition unit in the cabinet, so that a complete and safe application chain is formed. The self-service operation instruction is synchronously stored in the corresponding terminal parameter storage unit and can be kept synchronous with the transaction processing terminal system, so that the lending and returning operation time, the specific workstation, the user identity, the operation content and the corresponding equipment state can be completely recorded; therefore, the management traceability is realized, and meanwhile, the data uniformity among a plurality of work stations is ensured.

This invention provides a method and system for synchronizing data between a cache and a database. The data synchronization system includes an application service, RabbitMQ middleware, a cache, and a database. The application service updates target data in the database; the application service deletes the target data from the cache; when the RabbitMQ middleware receives a cache deletion failure message from the application service, it triggers the application service to delete the target data from the cache again until the target data in the cache is successfully deleted. By updating the data first and then deleting the cache, data consistency between the cache and the database is guaranteed.

This invention provides a multi-sensor fusion positioning method, comprising: processing ultra-wideband measurement data to obtain ultra-wideband positioning data; fusing inertial navigation data and satellite navigation data to obtain fused positioning data; processing laser point cloud data by combining inertial navigation data and prior maps to obtain laser point cloud positioning data; and fusing odometer data, fused positioning data, ultra-wideband positioning data, and laser point cloud positioning data to obtain a motion state estimation result for the target object. This invention solves the problem of low accuracy in vehicle navigation systems in existing technologies, especially the positioning drift problem in complex scenarios. This invention improves the robustness of the positioning system in complex scenarios (underground mining) by evaluating the information quality of different sensors and through efficient multi-source data fusion and collaborative positioning algorithms.

The invention discloses a fuel collection and preparation whole-process information security management and control system based on dynamic authority and physical isolation. The system comprises a central management and control platform, a security isolation gatekeeper, a field operation terminal and a physical execution unit. The platform generates a dynamic authorization instruction based on the four-dimensional feature model, and unidirectionally transmits the dynamic authorization instruction to the terminal after passing through a gatekeeper stripping protocol; the terminal verifies the timeliness of the instruction and the validity of the spatial features, and sends a driving signal to the physical equipment in combination with the identity information of the operator; physical equipment adopts an electromechanical locking and composite authentication mechanism, and can be unlocked only by receiving a driving signal and an entity identity certificate at the same time. According to the method, a network attack path is isolated and cut off through a protocol, and man-machine refined management and control are realized by utilizing a dynamic permission and physical interlocking mechanism, so that data counterfeiting and violation intervention in a fuel collection and preparation process are effectively prevented.

The application relates to the technical field of AI engine and discloses a cross-modal AI processing platform and a method thereof, wherein the method comprises the following steps: generating a relay context carrying a modal type set and a target model name according to a platform API key in a request header, and determining target channel configuration information and an alternative channel identifier from a registered channel in a channel capability table; performing message list field structured remapping, non-support parameter elimination and channel API key injection processing on a request body to obtain a target channel format request message and send the target channel format request message to a service endpoint in the target channel configuration information to obtain a downstream channel response message; and performing reverse structured remapping and streaming push data frame standardization processing to obtain a standard format response message and return the standard format response message to a request initiator, so that the technical problem of repeated development of multiple sets of protocol adaptation codes in the prior art is solved, and fine operation control of the cross-modal AI engine aggregation platform is realized.

This invention provides an intelligent early warning system for temporary road rescue in rapid emergency response, relating to the field of traffic engineering construction technology. It includes: a location acquisition module, an offset recognition module, a device activation module, a coordinate transformation module, and an early warning execution module. The location acquisition module reads the latitude and longitude values ​​output by the vibration sensor and positioning chip, acquires real-time latitude and longitude and triaxial acceleration values, and stitches the triaxial acceleration values ​​together. The offset recognition module compares the intervals of longitude and latitude changes and identifies the spatial change status, focusing on the longitude and latitude changes within the change segments. The device activation module compares the amplitude of vibration change information. The coordinate transformation module divides longitude segments, performs precision division on latitude values, and compensates the interface offset parameters to the latitude and longitude values ​​according to the corresponding longitude and latitude numbers. The early warning execution module stitches the latitude and longitude values ​​and assigns status values, controlling the communication component to send the stitching results to the map interface.

The invention discloses a main and standby database switching method and system based on performance self-adaptive evaluation. According to the method, multi-dimensional performance indexes of main and standby database nodes are collected in real time, the service health score of each node is dynamically calculated based on an adaptive weight model, and the fundamental transformation from recovery after failure to prevention before performance degradation is realized. And when the health score of the main node is continuously lower than a preset threshold value and a standby node with obviously higher health score exists, the system automatically triggers a preventive switching instruction and sequentially executes an elegant degradation process of write protection, data chasing, flow switching and role flipping. According to the method, the problems of single state judgment dimension, switching trigger lagging and extensive process control of a traditional heartbeat mechanism are effectively solved, the sub-health risk that the process survives but the service is unavailable can be accurately identified, the data consistency and the service continuity in the switching process are guaranteed, the service influence is remarkably reduced, and the user experience is improved. The method is suitable for key business scenes with strict high-availability requirements, such as finance and telecommunication.

The invention provides a smart card equipment management and instruction interaction method and device, and relates to the technical field of smart cards. The method comprises the following steps: monitoring a USB equipment event reported by an operating system; responding to the event, starting an event merging processing flow, and generating a trigger signal after the event is merged in a preset time window; in response to the trigger signal, executing device discovery through the PC / SC interface to obtain a unique identifier of the smart card device, and updating a device resource table; after a service request containing an APDU instruction is received, an exclusive lock is applied for target equipment, and persistent communication connection is obtained; when the exclusive lock is held, APDU instructions are sent in sequence through persistent connection, and results are received; and after completion, releasing the exclusive lock and returning a result. According to the method, the problems of resource consumption and real-time performance of timed polling are solved, event storm is avoided through event merging processing, and correctness and efficiency of high-concurrency services are guaranteed through the exclusive lock and the persistent connection.

This application discloses a real-time file synchronization method and system, relating to the fields of data transmission and distributed system consistency technology. The method includes: a server monitoring changes in the source file, using a sliding window to perform rolling hash calculations, dividing the file into multiple data blocks and calculating content hash values; generating block metadata for each data block, and connecting all block metadata through predecessor and successor identifiers to form a doubly linked list structure; comparing the differences in content between the old and new data blocks; and a client performing XOR restoration on incremental block type messages using locally cached old data block content, directly caching full block type messages, and concatenating them into a complete file based on the doubly linked list structure. This application reduces bandwidth consumption through intra-block XOR increments, achieves efficient version management using a linked list structure, optimizes anomaly recovery through snapshot chains, and provides industrial-grade lifecycle management capabilities, significantly improving the real-time performance, integrity, and system availability of data transmission.

The application provides a tab page data synchronization method and device and electronic equipment, and relates to the field of coordination computing and distributed coordination. In the application, concurrent operation conflict detection is performed on initial state change operations respectively initiated by a target object within a set time range for any two active tab pages in a browser to obtain a conflict detection result. If the conflict detection result indicates that the two initial state change operations have concurrent operation conflicts, a target conflict resolution strategy matching the two initial state change operations is selected from a plurality of candidate conflict resolution strategies. Operation conversion is performed on the two initial state change operations based on the target conflict resolution strategy to obtain a target state change operation. The target state change operation is applied to the any two active tab pages respectively, so that the any two active tab pages are synchronized with a tab page state corresponding to the target state change operation. In this way, complex concurrent operation conflicts can be effectively handled.

The application provides a BIM-based pressurized air supply system diagram automatic drawing and intelligent labeling method and system, which comprises the following steps: a user customizes setting of drawing parameters of the pressurized air supply system diagram; a BIM model is read, and spatial relationship information and geometric attribute information of the pressurized air supply system are analyzed and extracted; according to the drawing parameters and the information extracted from the BIM model, a preset rule library is called, and a two-dimensional system diagram and labeling are generated; whether the generated labeling has overlap is checked, and intelligent arrangement and avoidance of the labeling are realized; when the BIM model is changed, the changed part is automatically identified, and corresponding graph elements and labeling in the two-dimensional system diagram are driven to realize linkage update, so that the diagram and the model are consistent. The application effectively solves the problems of information fragmentation and loss, low collaborative efficiency and the like, breaks through the data flow from the three-dimensional model to the two-dimensional drawing, and significantly improves the design efficiency and the drawing quality.

The invention belongs to the field of electric power engineering cost, and mainly relates to a local area network electric power engineering cost collaborative compilation method, which comprises the following steps of: installing electric power engineering cost compilation software on a plurality of computer devices, initiating an engineering collaborative compilation request from a main device, and establishing a local area network collaborative compilation network; a plurality of devices can share and edit files in real time; designing and initializing an engineering file structure adapted to multi-user cooperation; according to division of labor of project participants, file parts responsible for the project participants are divided, and smooth file editing is ensured by locking authority control and a transaction data processing mechanism; integrating and synchronizing modified contents of all parties through an operation module of the software, and finally updating and modifying the file through a version control mechanism; according to the method, the cooperation efficiency, the data accuracy and the real-time performance of electric power engineering cost compilation are effectively improved.

The application relates to the technical field of rail transit detection, and particularly discloses an integrated intelligent detection system for a contact network based on multi-sensor fusion, which comprises a multi-source heterogeneous sensor array, an edge computing gateway, a data fusion and feature decoupling center, an interpretable fault diagnosis engine and a decision and visualization platform. Through a cross-modal attention fusion network and a variational autoencoder feature decoupling module, deep and interpretable data fusion is realized, fault features are decoupled into independent factors corresponding to different physical modes, and accurate classification, positioning and evaluation are carried out by the diagnosis engine. The application improves the transparency, accuracy and early warning capability of fault diagnosis.

This application discloses an electromagnetic environment simulation modeling method, apparatus, device, medium, and product, relating to the field of simulation modeling. The method includes: obtaining simulation modeling requirements; extracting target waveform data from a standardized waveform database based on the simulation modeling requirements, wherein the standardized waveform database includes waveform data of various electromagnetic environment waveforms; determining a target description file based on the target waveform data and simulation setting parameters, wherein the simulation setting parameters are included in the simulation modeling requirements; and determining an executable file based on the target description file and simulation modeling requirements, wherein the executable file is used to instruct target simulation software to generate an electromagnetic environment model. This application solves the technical problems of inconsistent modeling methods and cumbersome modeling processes in existing electromagnetic environment simulation modeling methods.

The application discloses a high-availability and anti-split-brain industrial data acquisition system, comprising: a basic server cluster, which comprises a business server cluster and a history server cluster, the business server cluster comprises a plurality of business instances, the business instances are used for undertaking business logic processing tasks, the business instances are separately deployed from a database master node, and at least one special master node is included in the plurality of business instances; and an acquisition server cluster, which is used for acquiring real-time data from field devices or IoT terminals; wherein the business server cluster is based on an election mechanism of a Redis cluster, and when network partitioning occurs, an external coordinator is used for judging and forcibly closing the write permission of a non-master node. Compared with the prior art, the business service and the database master node are separately deployed, and a three-node anti-split-brain mechanism is introduced, so that the stability and data consistency of the system in a complex network environment are remarkably improved.

The application relates to a data synchronization method and device, computer equipment, a storage medium and a computer program product, and relates to the technical field of cloud computing. The method comprises the following steps: acquiring a first application business table and a first transaction log reconciliation table of a platform database, and a second application business table and a second transaction log reconciliation table of a host database; the first transaction log reconciliation table and the second transaction log reconciliation table are used for recording the transaction state of each transaction; log data in the first transaction log reconciliation table and the second transaction log reconciliation table is compared to obtain a log comparison result, and business data in the first application business table and the second application business table is compared according to a preset comparison rule to obtain a data comparison result; and data compensation processing is performed on the platform database or the host database according to the log comparison result, the data comparison result and a preset data compensation mechanism. The method can guarantee the data consistency of the host database and the platform database, and ensure normal operation of transactions.