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276 results about "File verification" patented technology

File verification is the process of using an algorithm for verifying the integrity of a computer file. This can be done by comparing two files bit-by-bit, but requires two copies of the same file, and may miss systematic corruptions which might occur to both files. A more popular approach is to generate a hash of the copied file and comparing that to the hash of the original file.

Automatic file quality inspection method, device and equipment, medium and product

The invention belongs to the technical field of office automation, and particularly relates to an automatic file quality inspection method, device and equipment, a medium and a product. The method comprises the following steps: acquiring an archive to be subjected to quality inspection, wherein the archive to be subjected to quality inspection comprises electronic archive metadata and an electronic archive image; determining an archive management type according to the quality inspection subject item list; according to the archive management type, obtaining a verification rule corresponding to the archive management type according to an archive verification directory; according to the archive checking catalog, extracting key contents required by checking from the electronic archive metadata and the electronic archive image; and verifying the key content according to a verification rule. Based on the method, automatic quality inspection of the electronic file metadata and the electronic file images is achieved, and meanwhile the method is easy to expand and high in universality.
Owner:DAREWAY SOFTWARE

Intelligent substation configuration file checking method and system based on artificial intelligence

The invention discloses an intelligent substation configuration file checking method and system based on artificial intelligence, and relates to the field of artificial intelligence, and the method comprises the steps: responding to an input signal of a to-be-checked configuration file, extracting n character strings of the to-be-checked configuration file, carrying out the semantic analysis of each character string, and obtaining a semantic analysis result, n is an integer greater than 1; key features of the analysis result are extracted from the semantic analysis result, feature learning is conducted on each key feature through a preset feature learning algorithm, and high-level feature representation of each key feature is obtained; combining all high-level feature representations of the analysis result to obtain a feature set; and inputting the feature set into an artificial intelligence model to obtain a proofreading result of the to-be-checked configuration file and a preset reference configuration file. According to the method and the device, the problem of huge resource consumption caused by a traditional checking mode can be solved in the face of large-scale data or complex comparison requirements.
Owner:国网甘肃省电力公司金昌供电公司

Device for detecting firmware tampering vulnerability based on static analysis technology

The invention discloses a device for detecting firmware tampering vulnerabilities based on a static analysis technology, and belongs to the field of information security. The system specifically comprises a firmware updating security detection module and a verification algorithm security detection module. When one piece of firmware is detected, firstly, the firmware is unpacked by using an unpacking layer of the firmware update security detection module to obtain a file system input analysis layer, and an input source function and a firmware update function of the device for receiving user data through an HTTP protocol are found. Path exploration is carried out through symbolic execution and taint analysis, and when Source is reachable to Sink, a data link from an input source function to a firmware updating function is found; variable constraints are collected in the path exploration process, constraint analysis is carried out, whether control variables can be influenced by taint variables controlled by a user or not is judged, and finally a detection result report is generated. And the verification algorithm security detection module is used for identifying the type of the file verification algorithm. According to the invention, the detection efficiency is improved, and the labor cost of detection is reduced.
Owner:BEIJING TIMES XINWEI INFORMATION TECH CO LTD +1

Process-level multi-dimensional coding construction file detection system and method

The invention relates to the technical field of engineering construction informatization, in particular to a process-level multi-dimensional coding construction file detection system and method, and the system comprises a four-dimensional dynamic coding engine, an intelligent file verification module, a block chain evidence storage and restoration module and a dynamic tracing platform. The four-dimensional dynamic coding engine generates a unique code and verifies process logic; the intelligent file verification module identifies missing files based on an engineering file template library and a weighting algorithm; the block chain evidence storage and repair module carries out cochain evidence storage on missing records and sets a time-limited completion mechanism; the dynamic tracing platform realizes bidirectional mapping and visual monitoring of the construction file and the BIM model; according to the method, through cooperation of all the modules, code generation verification, file integrity detection, missing evidence storage repair and construction whole process tracing are completed. The method solves the problems that traditional construction file management is low in efficiency, difficult in process supervision, difficult in data tracing and collaboration and the like, promotes digital transformation of project management, and improves project quality and management efficiency.
Owner:CHISS

SD card-based power distribution terminal upgrading method, system, equipment and medium

The invention discloses a power distribution terminal upgrading method, system and device based on an SD card and a medium. The method specifically comprises the steps of generating an incremental package of a Linux kernel and / or a root file system, calculating a hash value file of the incremental package, and generating a block chain certificate with a timestamp; encrypting and packaging the incremental package, the hash value file and the block chain certificate into a container mirror image, performing digital signature to form an upgrade package, and writing the upgrade package into an SD card; after it is detected that the SD card is inserted, mounting a boot partition, analyzing metadata of an upgrade package, and setting an upgrade flag bit and an upgrade operation type of Boot; and performing digital signature verification, hash value file verification and block chain certificate verification on the upgrade package in the SD card, if the verification is passed, backing up user parameters to the encrypted storage area, and restarting to enter the Recovery OS to complete replacement upgrade of the Linux kernel and / or the root file system. According to the method, safe, efficient and flexible upgrading of the operating system of the power distribution automation terminal is achieved, the rollback function is achieved, and the upgrading risk and cost are effectively reduced.
Owner:ZHUHAI COPOWER ELECTRIC

File integrity monitoring method, electronic equipment and storage medium

PendingCN120743861ADigital data protectionFile/folder operationsFile integrity monitoringEdge node
The invention discloses a file integrity monitoring method, electronic equipment and a storage medium. The method comprises the steps of sending a verification request to a scheduling node through a user node when a file integrity verification condition is triggered; determining an edge node group through the scheduling node according to the edge node load condition, and distributing an audit task corresponding to the verification request to each edge node in the edge node group; searching corresponding integrity evidence according to the auditing task through the edge node, and sending the integrity evidence to the scheduling node; consistency verification is carried out through the scheduling node according to the integrity evidence fed back by each edge node, and if the consistency verification is passed, the integrity evidence is sent to the user node; and performing local verification through the user node according to the integrity evidence, and determining a corresponding file verification result. By means of the method, the safety, traceability and credibility of file integrity monitoring in the domestic terminal environment are effectively improved, resource occupation is low, and compatibility is high.
Owner:INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER +1

File uploading method and device, file processing method and device, file verification method and device and equipment

The invention provides a file uploading method and device, a file processing method and device, a file verification method and device, equipment, a medium and a program product. A specific embodiment of the file verification method in the application comprises the following steps: sending a file acquisition request to a server; receiving a file fragment set and a first verification value of the file sent by the server; calculating a third verification value of the file fragment in the file fragment set; combining the third verification values of the file fragments in the file fragment set to generate a third verification value of the file; and comparing the first verification value and the third verification value of the file to generate a verification result of the file. According to the embodiment, the file verification efficiency is improved.
Owner:SHANGHAI BILIBILI TECH CO LTD

Artificial intelligence-based system and method for automating job matching

The present artificial intelligence-based system (100) automates job matching by evaluating each candidate's resume against job requirements. It includes a user interface (102) for administrators to upload job descriptions and candidate resumes, a database directory module (104) for data storage, a document extension module (106) for file verification, and a processing module (108) with a Large Language Model (110), at least one vector database (118), and a Scoring module (112). The processing module interprets resume contents through machine-readable instructions, performs similarity searches, and scores candidates in real-time based on their suitability for each job requirement. The method (200) of the present invention involves receiving and managing job descriptions and resumes, verifying document formats, processing resumes and job descriptions, and displaying ranked results. Within the processing step (208), the method further encompasses processing and interpreting resume contents, scoring candidates for real-time suitability, and comparing qualifications and skills against job descriptions.
Owner:MYQUICKHR SDN BHD

Method and system for exporting Allegro file packages in batches based on Python

The invention provides a method and a system for exporting Allegro file packages in batches based on Python. The method comprises the following steps: configuring an Allegro executable file path and a pre-recorded Skill script path; selecting a target export directory through a graphical interface, and updating export path parameters in the Skill script; selecting Allegro PCB files to be processed in batches through a graphical interface; verifying the file list and the export path, and starting batch processing after confirmation; traversing the file list, and executing the following steps on each Allegro PCB file to be processed: calling an Allegro command line tool, and opening the PCB file in a batch processing mode; automatically loading a pre-recorded Skill script to execute a packaging and exporting operation; and capturing and feeding back a command line execution state. The efficiency can be improved, multi-file batch automatic processing is supported, and manual operation is reduced; human errors are avoided through automatic path configuration and an exception capture mechanism; the interaction is friendly, and the operation threshold is reduced while the operation steps are simplified.
Owner:SHENZHEN COLORFUL YUGONG TECH DEV CO LTD

License authorization management method for software platform

The invention discloses a license authorization management method for a software platform, which comprises the following steps of: storing files or data by adopting a multi-way tree type storage structure, granting a user permission of a corresponding node level according to different nodes of the multi-way tree type storage structure, generating a unique machine code according to the user permission and server hardware information, and storing the unique machine code into a server; performing digital signature on the machine code to generate a legal authorization file; finally, when the user accesses the corresponding node, performing authorization file verification, and judging whether the authorization file verification is passed or not; and the effect of browsing, viewing or modifying hierarchical management aiming at users with different permissions is realized.
Owner:GUANGDONG ZHONGKE YIXING IOT TECHNOLOGY CO LTD

Safe starting method and system of trusted controller

The invention discloses a secure startup method and system of a trusted controller, and belongs to the technical field of industrial control system security, and the method comprises the steps: configuring a secure startup strategy in U-Boot, and executing the secure startup strategy in the startup process of the trusted controller through a trusted controller drive; when the trusted controller is started, the security starting strategy is verified by adopting the first-level security strategy, and corresponding security check is executed according to the security starting strategy after verification is passed; after the trusted controller is started, the security starting strategy establishes a trusted chain according to the trusted files, measurement verification is carried out on all the trusted files of the trusted chain, and when all the trusted files pass verification, the trusted controller passes trusted verification; according to the secure starting method of the trusted controller, the reliability of the system is improved through establishment and verification of the trusted chain, a flexible protected area and comprehensive trusted file verification, and comprehensive security guarantee is provided for the system.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

Verification method and device of network-on-chip design file, equipment and storage medium

In the embodiment of the invention, the excitation component is sent to the reference model unit from the excitation generation unit through the compatible interface, so that the excitation generation unit can interact with the reference model unit through the compatible interface, send the excitation component to the reference model unit, and store the excitation component in a memory area allocated by the reference model unit in the excitation component; the reference model unit does not need to read a pre-written input source file from a hard disk, interaction of the hard disk is reduced, the problem of resource shortage in the development process is relieved, meanwhile, the excitation assembly is sent to the verification unit, and an actual measurement result obtained by the verification unit is compared with a reference result obtained by the reference model unit. According to the network-on-chip design file verification method and device, interaction between the excitation generation unit and the reference model is achieved through the compatible interface, it is avoided that the reference model unit reads data from a hard disk, the problem of resource shortage is solved, and the system performance is improved.
Owner:BEIJING INSTITUTE OF OPEN SOURCE CHIP

Archive middle table system

The invention discloses a file-in-file system, which relates to the technical field of file management and document processing, and comprises the following modules: a file category configuration module which is used as a system basis and provides refined classification management of large categories and small categories of files; the attachment management module comprises a watermark configuration sub-module, an attachment list configuration sub-module and a file verification sub-module; the document printing management module comprises a template management subsystem, a template change sub-module and a printing function and template index configuration subsystem; and the file operation module comprises file uploading and downloading, file previewing, online editing and document state control button display. According to the file transfer system, efficient and safe file management is automatically and configuratively realized through file category, attachment configuration and flexible management of a file printing template, final unified storage of files which are archived, generated by the system and manually uploaded is realized, binding with service nodes is supported, and rich interfaces are provided for integration of a service system.
Owner:YONYOU FINANCIAL INFORMATION TECH

Cross-heterogeneous platform law supervision system based on XML and semantic matching

The invention discloses a cross-heterogeneous platform law supervision system based on XML and semantic matching. The cross-heterogeneous platform law supervision system comprises a data standardization module and a cross-heterogeneous platform execution system. The cross-heterogeneous platform execution system comprises a heterogeneous platform data import module, an XML file verification module and a supervision function execution module; the data standardization module is used for realizing standardization of cross-platform legal supervision data on the basis of intermediate description language technical specifications; the heterogeneous platform data import module comprises two independent heterogeneous platform data import platforms and is used for realizing data import and converting heterogeneous data of different platforms into a unified XML (Extensible Markup Language) file; the XML file verification module is used for carrying out mutual matching of an XML file and an XSD file based on an XSD specification file given by an XML specification and the XML format file so as to realize XML file verification; and the supervision function execution module is used for executing a legal supervision function corresponding to the XML file after the XML file passes verification.
Owner:XI AN JIAOTONG UNIV

Calibration method, system and equipment for nuclear power design file and medium

The invention provides a nuclear power design file verification method, system and device and a medium, and the verification method comprises the steps: obtaining a to-be-verified file, and extracting the metadata of the to-be-verified file; based on the metadata, performing static rule check on the to-be-checked file to generate rule check data; performing dynamic technical check on the to-be-checked file through a preset check model to generate technical check data; and generating file verification data based on the rule check data and the technical check data, and performing graded early warning prompt based on the file verification data. According to the method, the file quality and compliance are remarkably improved, the human error risk is reduced, the technical verification efficiency is improved, the responsible person is directionally pushed through graded early warning, the examination period is shortened, and the accuracy and efficiency of nuclear power engineering construction are ensured.
Owner:CHINA NUCLEAR POWER DESIGN COMPANY +1

Image tampering detection and positioning method based on multiple scales and attention

The invention discloses an image tampering detection and positioning method based on multiple scales and attention, and aims to solve the problems of insufficient positioning precision, limited generalization ability and the like in unknown tampering type, complex scene and cross-device data processing in the prior art. According to the method, an EGANet network is constructed, a picture is input into a model for training after being subjected to data enhancement, a backbone network and an auxiliary feature extraction branch of the model extract deep semantic features and structural difference information respectively, features are enhanced through a double-gate cross module, edge information is enhanced through an edge perception enhancement module, and an edge perception enhancement model is formed. Generating edge-guided semantic features through an edge attention module, and finally fusing multi-source features through a global semantic fusion module and outputting a tampering positioning result. And by adopting end-to-end joint optimization, the positioning precision, boundary definition and complex tampering identification capability of a tampered area are improved, and the method is suitable for scenes such as news verification, government affair and judicial electronic file verification and the like.
Owner:NANJING TECH UNIV

Data backup method and device, electronic equipment and storage medium

The invention discloses a data backup method and device, electronic equipment and a storage medium, and relates to the technical field of computers, the data backup method comprises the steps that a cloud hard disk backup interface of a block storage service is expanded, a local backup directory is configured, a snapshot reserved space can be dynamically calculated to optimize storage resource utilization, and the data backup efficiency is improved. In addition, unnecessary directories are eliminated through file system level incremental backup, redundant data transmission is reduced, backup file verification is calculated, data reliability is guaranteed, and therefore the technical problems that in an existing cloud hard disk backup method, due to the fact that a full disk backup strategy is adopted, backup efficiency is low, and storage space is seriously wasted can be solved. The technical effects of improving the backup efficiency of the cloud hard disk, reducing the waste of storage space and guaranteeing the consistency of backup data are achieved.
Owner:JINAN INSPUR DATA TECH CO LTD

Electronic file evidence storage method and device and electronic file verification method and device

The invention provides an electronic file evidence storage method and device and an electronic file verification method and device, and relates to the technical field of computers. The electronic file evidence storage method comprises the steps that a first electronic file needing to be stored is acquired; generating an anti-counterfeiting image based on the first electronic file, wherein the anti-counterfeiting image comprises a unique identifier and traceability information of the first electronic file; embedding the anti-counterfeiting image into the first electronic file to obtain a second electronic file; performing hash processing on the second electronic file to obtain a first hash value; and based on a preset first asymmetric encryption private key, performing encryption processing on the first hash value to obtain an electronic signature, and embedding the electronic signature into a second electronic file to obtain an evidence storage file. According to the electronic file evidence storage method, the electronic file verification method and the electronic file verification device, the authenticity and the integrity of the electronic file can be verified, the strong anti-fake capability is achieved, and therefore the high efficiency, the safety and the credibility of the electronic file are guaranteed.
Owner:BEIJING SHENZHOU LOONGSON ANCHUANG INFORMATION TECH CO LTD

Purchase file verification method and device based on multi-mode and rule optimization

The invention discloses a purchase file verification method and device based on multi-mode and rule optimization. The purchase file verification method comprises the steps of obtaining an electric power purchase file to be verified; extracting image features and non-image features in the to-be-verified power purchase file, and aligning the image features and the non-image features; performing semantic coding on the non-image features to obtain purchase semantic features; splicing the purchasing semantic features and the image features through a semantic and visual collaborative feature extraction strategy to obtain a purchasing vector; and based on a pre-constructed purchase audit decision model, in combination with the differentiable reward function, analyzing and judging the purchase vector, giving a purchase file verification result, marking the power purchase to-be-verified file, and generating a purchase file verification report. Efficient cooperative processing of multi-modal data in purchase file verification is achieved by extracting and aligning multi-modal features, semantic and visual association of purchase files is captured by using a semantic and visual cooperative feature extraction strategy, and the accuracy and robustness of auditing are improved.
Owner:JIANGSU ELECTRIC POWER INFORMATION TECH

Automatic data protocol system based on semantic standardization and application method thereof

The invention discloses an automatic data protocol system based on semantic standardization and an application method thereof. The automatic data protocol system comprises a content acquisition engine which receives source data and preprocesses the source data; the file analysis and classification engine carries out standardization processing on the preprocessed source data to obtain a modularized semantic unit; the semantic engine converts the standardized content of the modular semantic unit into structured multi-layer semantic data; the semantic network engine constructs a complexdot semantic relationship network based on the multilayer semantic data; the path generation engine is used for constructing a transformpath semantic track on the basis of a complexdot semantic relationship network; the file generation engine packages the multi-layer semantic data to generate a. Oqi file; the verification engine verifies the semantic structure and integrity of the. Oqi file; and the AI interface gateway issues the verified. Oqi file to an AI native platform. The. Oqi file has structured and queriable semantic data, and it is ensured that different AI systems can conduct access, indexing and semantic comparison on the. Oqi file.
Owner:ITAL SCI & TECH DONGGUAN CO LTD

File verification method, device and equipment for content distribution network, medium and product

The invention relates to the technical field of computers, and discloses a file verification method and device for a content distribution network, equipment, a medium and a product, and the method comprises the steps that a source station carries out abstract operation on a target file to obtain a first abstract file, and constructs a first protection file of the first abstract file; wherein the filename of the first protection file is obtained by encrypting the filename of the first abstract file based on a first encryption key corresponding to the target file, and the first protection file is used for verifying the accuracy of the first abstract file. In response to an access request for a target file, the source station sends the target file, the first digest file, and the first protection file to the content distribution network. And the content distribution network performs accuracy verification on the received target file based on the first abstract file and the first protection file. According to the invention, the problem of file transmission errors caused by tampering of the file transmitted by the content distribution network can be solved.
Owner:BEIJING VOLCANO ENGINE TECH CO LTD

Updating an edge device operating in a secure computing environment

Described herein is a technique to update an edge device deployed in a secure computing network. A repository connected to a public network stores build contents configured to update software installed on the edge device; the public network is inaccessible to devices within the secure computing environment. A second device connected to the public network acquires the build contents in a signed lockbox file. An edge device management service generates a lockbox file containing the build contents and a trusted signer outside the secure computing network signs the lockbox file. The second device connects to secure computing network and establishes communications with the edge device. The edge device verifies the signed lockbox file provided by the second device. Upon verification, the edge device extracts the contents of the signed lockbox file and updates the software installed on the edge device.
Owner:CISCO TECHNOLOGY INC

DWG-to-PDF conversion and batch printing method and system based on database

The invention belongs to the technical field of computer aided design software, and provides a DWG-to-PDF conversion and batch printing method and system based on a database. The method comprises the following steps of: defining and recording drawing label information in CAD software through a database module, and accessing and identifying a pre-converted DWG file; the intelligent drawing frame module identifies the drawing frame boundary of the drawing and adjusts the size and the position; identifying a text, a block or a preset layer in the pre-converted DWG file through an intelligent picture and label information module, positioning picture and label information, and supplementing or modifying the picture and label information at the same time; the electronic signature module records the electronic signature file uploaded by the user to a database, and adds the electronic signature file in the database to a specified position of the PDF file; and the verification module performs picture signature information verification, format verification and electronic signature file verification on the content of the PDF file converted by the verification module. According to the method, the DWG files are converted and printed into the PDF files in batches, the working efficiency of an engineering project is improved, and the operation process is simplified.
Owner:POWERCHINA BEIJING ENG CORP

Vehicle central domain controller software upgrading method and system based on flashing diagnostic instrument

The invention provides a vehicle central domain controller software upgrading method and system based on a flash diagnostic instrument. The method comprises the following steps that the flash diagnostic instrument is connected to a Switch through an Ethernet ETH network cable; establishing UDP (User Datagram Protocol) connection with the MPU; initiating an identity verification request to the MPU; verifying whether the identity of the flash diagnostic instrument is legal; initiating a file transmission request to the MPU, and sending the controller flash program compressed file to the MPU; receiving and storing the compressed file; sending the file verification value; the MPU receives the file verification value and calculates the file verification value; the MPU compares whether the verification values of the two files are consistent or not; initiating an installation request to the MPU; the MPU decompresses the compressed file and analyzes the file content; judging whether the decompressed file content is legal or not; the MPU downloads the MCU flash program file to the Nor Flash, downloads the communication SoC flash program file to the internal memory of the communication SoC, writes the MPU flash program file to the eMMC, and respectively performs flash updating; sending an installation result to the flashing diagnostic apparatus; and the flash diagnostic instrument resets the central domain controller.
Owner:ZHIZI AUTOMOTIVE TECHNOLOGY CO LTD

Firmware security hot update method and electronic equipment

The invention discloses a firmware security hot update method and electronic equipment, and relates to the technical field of computers.The firmware security hot update method comprises the steps that a differential patch file is generated by comparing a target firmware mirror image with a current firmware mirror image, the integrity and the source of a patch are verified, a rollback voucher is created after the patch behavior is verified to be credible through a shadow execution environment, and firmware update is carried out; the behavior credibility and integrity of the patch file are verified in the shadow execution environment, so that the influence of wrong or malicious patches on the stability and safety of the system is avoided; the rollback mechanism ensures that the system state can be quickly recovered when abnormity occurs, the risk in the updating process is reduced to the maximum extent, and non-inductive recovery can be realized without restarting.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Multi-stage cascade semantic analysis framework for kernel security level control code generation tool

The invention discloses a multi-stage cascade semantic analysis framework of a nuclear security level control code generation tool, which comprises an input layer, an analysis module layer, an error processing layer and an output layer, and is characterized in that the input layer is used for receiving and preprocessing a control model xml file, verifying a file format and preliminarily checking grammar; the analysis module layer is used for analyzing post grammar, namespace, type, clock, causal relationship and initialized semantic analysis tasks of the file after receiving the analysis request to obtain analysis results; the error processing layer is used for collecting, classifying, positioning and report generating various error information appearing in the analysis module layer; and the output layer is used for generating and outputting a standardized analysis report and an optimization suggestion. And a pipelined cascade structure is adopted, so that efficient semantic analysis is realized. Through an innovative error processing mechanism and an optimization strategy, the analysis efficiency and accuracy are remarkably improved, and a reliable guarantee is provided for software development of a digital instrument control system of the nuclear power station.
Owner:NUCLEAR POWER INSTITUTE OF CHINA

A root key file verification method and device

The present invention discloses a root key file verification method and device. The method of the present application generates a verification request message through a terminal. The key distribution end performs identity authentication on the terminal according to the hash value of the root key ciphertext file and the device ID in the received verification request message, and returns the hash value of the root key plaintext file and the key extension parameter for decrypting the root key ciphertext file after the identity authentication is legal; the terminal obtains the decryption key according to the key extension parameter to decrypt the root key ciphertext file to obtain the root key plaintext file, and performs a hash verification on it again; the verification method is based on the hash verification of the root key ciphertext file and the root key plaintext file, which effectively ensures the integrity and correctness of the root key file; the verification device of the present application mainly includes: a reading module and a verification module; wherein the reading module is used to read the attribute information corresponding to the root key file, and the verification module is used for hash verification.
Owner:MATRICTIME DIGITAL TECH CO LTD

Multi-module upgrading method and system of in-vehicle infotainment system, terminal and storage medium

The invention discloses a multi-module upgrading method and system of an in-vehicle infotainment system, a terminal and a storage medium, and the method comprises the steps: obtaining a module compression package file of the in-vehicle infotainment system when the in-vehicle infotainment system is detected to be updated, and carrying out the verification processing of the module compression package file, and obtaining a file verification result; if the file verification result is that verification is passed, performing decompression identification on the module package file to obtain to-be-upgraded file information; and if the to-be-upgraded file information shows that a plurality of to-be-upgraded files exist, synchronously upgrading the plurality of to-be-upgraded files to obtain an upgrading result, and restarting the in-vehicle infotainment system according to the upgrading result to obtain the in-vehicle infotainment system of a target version. According to the method, all the upgrading modules are packaged into the compressed file, only one-time complete verification needs to be carried out, all the modules can be upgraded at the same time, the total time is saved, only different modules are upgraded, and therefore the upgrading efficiency of the vehicle machine system is improved.
Owner:SUZHOU ZHIXING CHANGLIAN TECH CO LTD

Unified monitoring method and system for file interaction links of power grid dispatching automation system

The invention discloses a unified monitoring method and system for file interaction links of a power grid dispatching automation system, and the method relates to information collection of file interaction links between systems and in the systems, verification of interaction files at a link source end and a link destination end, abnormal alarm and diagnosis analysis of the interaction links and visual display of the interaction links. The method aims at comprehensively monitoring the file interaction link state of the power grid dispatching automation system, expanding the operation and maintenance range of the automation system and guaranteeing efficient and stable operation of the power grid dispatching automation system.
Owner:NARI TECH CO LTD

Software remote online upgrade device and method based on dual DSP

ActiveCN119440595BSoftware engineeringDsp architectureselect
The present invention discloses a remote online software upgrade device and method based on dual DSPs. DSP1 receives a host computer instruction via the CAN bus and, based on the instruction, selects to jump to DSP1's Bootloader program and upgrade DSP1's APP program in the Bootloader program. Alternatively, based on the instruction, the DSP program file is sent to DSP2 via the serial port. DSP2, based on the instruction, jumps to DSP2's Bootloader program and upgrades DSP2's APP program in the Bootloader program. After the program file upgrade is complete, the host computer issues a verification and comparison instruction. The DSP calculates the received program file verification instruction and compares it byte by byte with the verification instruction sent by the host computer. The comparison result is reported. If it is completely correct, the program upgrade is complete. This device adopts a dual DSP architecture, with DSP1 running at a 150MHz main frequency and DSP2 running at a 100MHz main frequency. To load program files more efficiently, the SCI communication baud rate is specially designed to be 125,000 bit / s.
Owner:TIANSHUI 749 ELECTRONICS