1096 results about "Datagram" patented technology

The invention relates to the technical field of synchronization in data communication, and provides a PTP protocol-based chip-level hardware timestamp generation method and system, and the method comprises the steps: 1, receiving a synchronization message and a delay request message from a main clock, carrying out the evaluation of a physical layer signal, and recording a first hardware timestamp; 2, responding to the received delay request message, generating and sending a delay response message, acquiring bidirectional transmission delay data by exchanging the delay request and the delay response message, and calculating clock skew in combination with the first hardware timestamp and the bidirectional transmission delay data; 3, adjusting the local clock frequency according to the clock skew; 4, after the synchronization is completed, associating the second hardware timestamp with the corresponding data message, and storing the associated data in a buffer area in the chip; and 5, generating standardized timestamp information, and outputting the standardized timestamp information through a chip interface. And high-precision time synchronization and timestamp generation are realized.

Embodiments of the present disclosure provide a fuzz testing method, an electronic device, and a computer readable storage medium. The fuzz testing method comprises: acquiring a data packet; generating a protocol rule tree model on the basis of the data packet; generating a test case on the basis of the protocol rule tree model; sending the test case to a device under test; and determining a test result on the basis of response information of the device under test.

The invention discloses an anti-drowning early warning system of a self-adaptive dynamic virtual electronic fence, and aims to solve the problems that an existing anti-drowning early warning system cannot adapt to water level changes and early warning lags behind. The virtual electronic fence setting module is used for setting static and dynamic virtual electronic fences, identifying and analyzing personnel behaviors and controlling alarms; the data acquisition module is used for acquiring environment data information and video monitoring information; and the data storage module is used for storing data, alarm information, virtual electronic fence setting information and water level change information of the virtual electronic fence according to the water level change adjustment range. The system is based on real-time detection of a YOLOv8 model and is combined with a virtual electronic fence technology, has the characteristics of high-precision identification, low-delay response, field environment adaptability and the like, can effectively reduce the occurrence rate of drowning accidents, and is a set of intelligent, efficient and convenient-to-maintain system.

The invention belongs to the technical field of communication, and particularly relates to an NFC (Near Field Communication) encrypted IMS (IP Multimedia Subsystem) server security data exchange method, which comprises the following steps of: in response to a near field communication connection event, acquiring an original service data message of service equipment to be opened and physical environment data monitored when the event occurs, forming a seed data set, executing Hash operation to generate an initial data fingerprint, and sending the initial data fingerprint to a server; and generating a symmetric session key through a key derivation algorithm by combining a device identifier in the original service data message, so as to encrypt the original service data message, packaging an encrypted data packet and the initial data fingerprint into a transmission data packet, sending the transmission data packet to an IMS server, reconstructing the session key by the server based on expected service parameters stored locally, and sending the session key to the IMS server. According to the method, decryption verification of the encrypted data packet is carried out, and service opening is executed after the verification is passed, so that deep binding of an encryption process and data integrity verification is realized, and the security of data exchange and the system processing efficiency are improved.

The invention relates to the technical field of communication security, in particular to a communication encryption method and device, equipment, a storage medium and a computer program product. The method comprises the following steps: dynamically generating a main session key between two communication parties based on a preset key negotiation protocol; dynamically generating sub-keys according to a preset time interval based on the main session key and the key sequence; performing encryption processing on each data block in the communication data stream based on the sub-key and the encryption strategy; generating a message authentication code for each encrypted data block; adding timestamp information based on the message authentication code, and introducing a random offset into the timestamp information; and the encrypted data blocks, the message authentication code and the timestamp information are packaged into the target data message, so that the transmission security of the communication data is improved.

The invention discloses a malicious traffic message interception and retention method based on threat intelligence, and the method comprises the following steps: S1, importing a threat intelligence data set, generating an intelligence label dictionary, and caching the intelligence label dictionary; s2, receiving a network data packet through a traffic mirroring device or an acquisition probe, and aggregating the network data packet into a traffic aggregation object based on a quintuple; s3, modeling and recording a state transition sequence based on a protocol state machine; s4, detecting a state transition sequence by using the information label dictionary, and identifying potential malicious traffic; s5, extracting data messages corresponding to the key nodes to form an extracted message set; s6, grouping according to the information labels and encrypting by using an improved AES symmetric encryption algorithm to generate an encrypted message file; s7, constructing an index data table containing a quintuple, capture time and an information label, and associating the index data table with the encrypted message file; and S8, storing the encrypted message file and the index data table in a separated storage system, and updating the index data table regularly. The method and the device are suitable for a threat-driven encrypted message processing scene.

The invention provides an intelligent self-adaptive RDMA message processing method for power grid data transmission, and the method comprises the steps: S1, obtaining parameters, carrying out the initialization of a credit line value and a retransmission priority, and creating a data transmission task; s2, sending the data message to a second RDMA network card of an opposite terminal device through the first RDMA network card; after receiving the data message, the second RDMA network card generates a corresponding response message and sends the response message back to the sending end; s3, analyzing the response message, determining the type of the response message, and storing correctly received data; s4, performing error detection and retransmission processing by analyzing the PSN serial number of the RDMA message; and S5, dynamically adjusting and optimizing the credit line and the retransmission priority of the data message. According to the method, resource allocation can be dynamically optimized according to the real-time state of the network, priority transmission of high-priority data including power control instructions and the like is ensured, and the transmission efficiency and reliability of key data are remarkably improved.

The invention provides a communication method and a communication device, and the method relates to the technical field of communication, and the method comprises the steps: a first UPF receives a first data message, the first data message comes from a first terminal, the first data message is a data message of a first group of services, the target IP address of the first data message is a first IP address, and the target IP address is a second IP address; the first IP address is a large network IP address of the second terminal, and both the first terminal and the second terminal sign a first group of services; and a second data message is sent to a second user plane function UPF, the second UPF is the UPF of the park where the second terminal is located, the second data message is generated based on the first data message, the target IP address of the second data message is a second IP address, and the second IP address is obtained based on the first IP address. The second IP address is a private network IP address applied by the second terminal based on the first group of services. Based on the method, the service access delay of the terminal can be reduced.

The invention discloses an intelligent data report generation system and method based on a large language model, and relates to the field of computer software and artificial intelligence. A natural language processing module in the system is used for analyzing user requirements and judging whether a data source of the user requirements is a data storage module or an enterprise knowledge base module; the database query module is used for generating structured data of the SQL statement query data storage module; the database query module queries a database; the knowledge document retrieval module retrieves unstructured data of the enterprise knowledge base module; the knowledge document retrieval module retrieves a knowledge base by using an RAG technology; the report generation module is used for generating a visual chart according to a user demand and a query result; the data storage module is used for storing the structured data and the generated visual chart; and the enterprise knowledge base module stores the vectorized unstructured knowledge document. According to the method, the data report making and querying efficiency and accuracy can be improved.

The present application provides a congestion control method, which can be applied to a data center. The method is applied to a source device. The source device comprises a plurality of queues. The method comprises: transmitting a plurality of probe packets, wherein the plurality of probe packets are used for probing, for the plurality of queues, allocated bandwidth on a target path between the source device and a destination device; receiving a plurality of acknowledges from the destination device, wherein the plurality of acknowledges are used for indicating available bandwidth probed by the plurality of probe packets, and the available bandwidth is bandwidth capable of being used for transmitting data packets in the plurality of queues among the allocated bandwidth; and transmitting the data packets in the plurality of queues to the destination device by using the available bandwidth. According to the solution provided in the present application, by simply using a set of probe packet resources for probing, the data packets in the plurality of queues can be transmitted, and there is no need to configure a set of resources for probing for each queue, reducing the resources used for probing, and reducing the probability of congestion on the target path from the source.

The invention relates to a message retransmission method, a message retransmission device and a chip. The method comprises the following steps that: destination end equipment receives a first data message sent by source end equipment, wherein the first data message comprises an identifier of a target transmission path for transmitting the first data message and a packet sequence number of the first data message; the destination end device determines a currently missing second data message corresponding to the target transmission path according to the packet serial number of the first data message; and the destination end equipment sends a selection confirmation message to the source end equipment, wherein the selection confirmation message is used for indicating the source end equipment to retransmit the second data message. By adopting the method, the transmission efficiency of the data message can be improved.

The invention relates to the technical field of data processing, and particularly provides an industrial data report self-adaptive generation method, system and device and a storage medium, and the method comprises the steps: obtaining heterogeneous data from a plurality of data sources, and converting the heterogeneous data into industrial data in a unified format; generating a dynamic boundary value based on the industrial data as an index by using an adaptive dynamic boundary model; and analyzing the industrial data based on the dynamic boundary value of the index, and generating a report based on an analysis result. According to the method, the report is automatically generated based on intelligent analysis of the dynamic boundary, so that the current real operation state is objectively reflected, potential risks and performance changes can be revealed in time, and a more accurate and more time-efficient decision basis is provided for management personnel.

An integrated circuit formed on (i) a single semiconductor die or (ii) a plurality semiconductor dies that are integrated into a single package. The integrated circuit may include a communication interface including a serializer / deserializer (SerDes) interface; a fabric adapter communicatively coupled to the communication interface; a plurality of inference engine clusters, each inference engine cluster including a respective memory element and / or memory interface; and a data interconnect communicatively coupling each respective memory element and / or memory interfaces of the plurality of inference engine clusters to the fabric adapter. The fabric adapter may be configured to facilitate remote direct memory access (RDMA) read and write services and / or datagram communication over a cell-based switch fabric to and from the respective memory elements and / or memory interfaces of the plurality of inference engine clusters via the data interconnect.

The invention relates to an IPv4 data message processing method and device based on longest prefix matching. The method comprises the following steps: acquiring an IPv4 data message, and extracting a destination IP address in the message; based on a longest prefix matching mode, extracting a preset number of bits from the high order of the destination IP address; generating a search index through the preset number of bits; determining a corresponding table item in a pre-stored FPGA rule matching table according to the lookup index; extracting a message processing rule according to pre-stored information of the table item; and executing a subsequent processing action on the IPv4 data message based on the message processing rule. According to the method and the device, the IPv4 message prefix matching can be carried out through FPGA hardware acceleration, a matching result is generated through single query, linear speed processing under million-level rules is supported, and meanwhile, the longest prefix priority principle is automatically maintained when the rules are changed through a CPU-FPGA collaborative updating mechanism.

The invention provides a method and device for extracting report data based on a large model technology, and relates to the field of batch data processing, and the method comprises the steps: carrying out the intelligent table splitting processing of obtained report image data through a pre-constructed intelligent report prompt word project, and obtaining an effective target report; carrying out metadata dynamic extraction processing on the effective target report by utilizing a pre-constructed data extraction cue word project to obtain a report label; performing multi-dimensional data integration processing on the effective target report by utilizing a pre-constructed data integration prompt word project and the report label to obtain a report data dictionary; and performing subject semantic mapping on the effective target report according to the report data dictionary to obtain a required data report. According to the method, a complete automatic processing flow can be constructed, and intelligent report splitting, metadata dynamic extraction, multi-dimensional data integration, subject semantic mapping and the like are realized by combining an optical symbol recognition technology with a large model technology.

The invention provides a financial statement automatic generation method and system based on machine learning, and the method comprises the steps: carrying out the matching and conversion of semantics of different fields through employing an intelligent recognition technology according to a preliminary data format difference classification result, generating a standardized data structure set, and obtaining a unified field mapping relation; performing dynamic recombination on the cross-system business process by adopting a process tracking algorithm through a complete business data link, obtaining a time sequence relation and a data flow path of each business link, and obtaining a complete process tracking graph; key financial indexes and associated data of all links are obtained through the repaired process data set, and a data integration module is adopted for multi-dimensional summarization to obtain a preliminary financial data report framework; and through the final financial data content, obtaining a preset report template and an output rule, and generating a financial report output result conforming to a specification.

The invention relates to the field of communication protocol analysis, and provides a medical equipment communication protocol standardization method and system based on a large language model, and the method comprises the following steps: S1, collecting the monitoring data of each medical equipment in real time, and transmitting the monitoring data to a data integration platform in the form of a data message through an original communication protocol of the medical equipment; s2, the data integration platform inputs the preprocessed data message into a large language model to obtain a structured semantic tag; S2.1, the large language model is trained; s2.2, guiding the large language model to analyze and output a structured semantic tag by designing a cue word; and S3, the data integration platform maps the structured semantic tag to a unified equipment data model of the medical structure, and automatically accesses an equipment management system of the medical structure. The invention aims to solve the problem that a medical equipment communication protocol cannot be quickly and accurately analyzed and standardized in the prior art.

The invention relates to the technical field of computer networks, and discloses a communication method and device for a computing node, equipment and a storage medium. The method is applied to a computing node, the computing node comprises a virtual switch and a physical network card, a plurality of virtual network interfaces are created in the virtual switch, the plurality of virtual network interfaces are in one-to-one correspondence with a plurality of service networks, and the physical network card is connected with at least one other node. The method comprises the following steps: receiving a target data message of a target service network through a target virtual network interface of a virtual switch; and sending the target data message to a corresponding node in the at least one other node through the physical network card. A plurality of virtual network interfaces are created in the virtual switch, and one virtual network interface corresponds to one service network, so that deployment of a plurality of service networks in the virtual switch is realized, network multiplexing in the virtual switch is realized, and the problem that physical network card resources of computing nodes are insufficient is solved. And a plurality of virtualized networks cannot be provided.

The invention discloses a vehicle transportation management system based on Beidou positioning, which belongs to the technical field of vehicle transportation and comprises a Beidou positioning module, a data processing module, a multi-source heterogeneous data fusion module, a vehicle state monitoring module, a data analysis module, a transportation route planning module, a transportation route optimization module and a data report generation module. Through the high-precision positioning function of the Beidou positioning module and in combination with the error correction technology, more accurate vehicle position information can be provided, the accuracy and reliability of transportation are improved, the received data including satellite orbit errors, atmospheric delay errors and the like are processed, the positioning accuracy is further improved, and the positioning accuracy is improved. A comprehensive vehicle running state view is formed by combining Beidou positioning information with a vehicle sensor and an external data source, so that information from different data sources can be compared and analyzed on a common time axis, and the accuracy and effectiveness of data analysis are improved.

An integrated circuit formed on (i) a single semiconductor die or (ii) a plurality semiconductor dies that are integrated into a single package. The integrated circuit may include a communication interface including a serializer / deserializer (SerDes) interface; a fabric adapter communicatively coupled to the communication interface; a plurality of inference engine clusters, each inference engine cluster including a respective memory element and / or memory interface; and a data interconnect communicatively coupling each respective memory element and / or memory interfaces of the plurality of inference engine clusters to the fabric adapter. The fabric adapter may be configured to facilitate remote direct memory access (RDMA) read and write services and / or datagram communication over a cell-based switch fabric to and from the respective memory elements and / or memory interfaces of the plurality of inference engine clusters via the data interconnect.

The invention discloses a data message forwarding method and device in an SRv6 network, a medium and equipment. The invention belongs to the technical field of data transmission. The method comprises the following steps: after a data message is received, acquiring data identification information of the data message; analyzing the data identification information to obtain transmission demand information of data elements; mapping the transmission demand information to a network identifier, and packaging the transmission demand information to the head of a data message; and forwarding the data message according to the network identifier. By adopting the technical scheme, the equipment node at the network level can know the transmission requirement of the data element and forward the data element according to the transmission requirement, and the subsequent node can analyze the header content of the data message to obtain the transmission requirement, so that the data message forwarding link can meet the transmission requirement, and the transmission efficiency is improved. And the transmission requirement of the data element is perceived at the network level, so that the security and effectiveness of data transmission are ensured.

The present application relates to the technical field of communications, and particularly to a congestion control method and apparatus, and a readable storage medium. The method comprises: a data sender sends a data packet 1, wherein the data packet 1 carries window information 1 that is used for requesting to adjust a transmission window of data; a base station determines window information 2 on the basis of the window information 1 and a sensed air interface resource, wherein the window information 2 is used for indicating a transmission window of data; the base station sends the window information 2 to the data sender; the data sender determines the transmission window of the data on the basis of the window information 2. Use of the embodiments of the present application can reduce packet loss in a network, and can reduce the time delay of data transmission and improve the reliability of the data transmission.

The present invention relates to a multipath redundant communication method and apparatus, an electronic device, and a storage medium. The method comprises: in response to a topic subscription sent by a subscriber application, obtaining service data corresponding to the topic subscription and at least two communication links configured on the basis of a DDS adjustment protocol; encapsulating the service data on the basis of a DDS adjustment protocol to obtain target data packets corresponding to the at least two communication links; and respectively sending the plurality of target data packets to the subscriber application by means of the at least two communication links. In the above process, the reliability of data transmission based on a DDS adjustment protocol is improved.

The invention discloses a high-low voltage power distribution cabinet operation monitoring management method and system based on big data analysis and electronic equipment, and relates to the technical field of intelligent operation and maintenance of high-low voltage power distribution cabinets. The method comprises the following steps: acquiring various parameters based on deployed various types of sensors, and performing protocol conversion on acquired data through an intelligent gateway; carrying out local preprocessing on the data, and generating a standardized data message; uploading the data to a cloud platform, performing association analysis on multi-source data through a big data fusion algorithm, establishing multi-baseline monitoring of an equipment operation state, performing fault mode identification on abnormal data deviating from baselines, and generating fault early warning information; and automatically generating an operation and maintenance strategy according to the fault early warning information in combination with a preset operation and maintenance rule base. According to the technical scheme, comprehensive and real-time monitoring of the operation state of the high-low voltage power distribution cabinet is achieved, multiple parameters are collected through multiple types of sensors, the big data analysis technology is combined, and the abnormal situation in the equipment operation process can be accurately captured.

The invention provides a forwarding proof obtaining method and device and a forwarding proof verification method and device, and belongs to the field of network security. In the application, the forwarding proof is obtained by combining the expected sequence position of the forwarding node in the forwarding path and the identity of the forwarding node, so that the position binding of the forwarding proof and the fault tolerance for the non-key node are realized. The forwarding proof is not only related to the identity of the forwarding node, but also related to the expected sequential position of the forwarding node. The correct forwarding proof can be calculated by the node with the correct identity when the data message is forwarded to the correct sequence position on the forwarding path, so that the forwarding proof is strongly bound with the real forwarding condition of the data message. If an expected node is skipped or redundant unexpected nodes are passed in the forwarding process, the identity of the node is not matched with the sequence position of the node, so that the forwarding proof obtained based on the identity of the node and the sequence position of the node cannot pass the verification, and the credibility of the forwarding proof is improved.

The invention discloses an edge cloud cluster dynamic conversion and service sharing method, system and device. The method comprises the following steps: determining a network quality index between nodes in an edge cloud cluster; under the condition that the number of the first nodes in the edge cloud cluster is greater than a first preset number, converting the edge cloud cluster into a master-free cluster; under the condition that the edge cloud cluster is a main-free cluster, each node shares the application service and the resource utilization rate of the own node with adjacent nodes in a preset range in a mode of broadcasting a user datagram protocol data packet; and under the condition that the edge cloud cluster is a master-free cluster, if any node detects that the network quality index between the node and other nodes with a preset number is greater than a preset threshold value, electing a master node from the nodes. According to the invention, the technical problems that the edge cloud cluster depends on the central cloud and the service between the nodes is unreliable in a high-mobility environment and a network limited condition are solved.

The invention relates to the technical field of artificial intelligence, and discloses a data processing method and device based on a mirror data layer, computer equipment and a storage medium, and the method comprises the steps: obtaining to-be-submitted data, generating submission batch information for the to-be-submitted data based on a data exit layer, and carrying out the partition management of the to-be-submitted data, and submitting the to-be-submitted data to a specified mechanism, when it is detected that the to-be-submitted data is submitted successfully, obtaining storage receipt information returned by the specified mechanism after receiving the to-be-submitted data; and when determining that the to-be-submitted data is successfully stored based on the storage receipt information, writing the to-be-submitted data into the mirror image data layer, and performing partition management on the to-be-submitted data according to the submission batch information to complete data submission of the to-be-submitted data. In the financial insurance field, especially in the life insurance business, the mirror image data layer provides a reliable data basis for data auditing and compliance inspection, the accuracy in the data management process is ensured, manual intervention is reduced, and an insurance company is helped to meet supervision requirements.

The invention provides a real-time high-frequency sensor data acquisition system, which comprises an acquirer firmware program and an upper computer software program, and is characterized in that the acquirer firmware program acquires sensor data according to set integral time, encapsulates data acquired in a single or segmented manner into a private message format, and sends the data to an upper computer in real time through a communication module. The upper computer software is provided with a high-priority communication receiving thread and is used for receiving the segmented data messages, splicing the segmented data messages into complete frame data and storing the complete frame data into a first-level cache region; the system further comprises a plurality of data processing threads and corresponding second-level cache regions, and the data processing threads are used for processing frame data in parallel. The system supports sensors in different acquisition modes, has high-frequency data acquisition capability, improves data processing efficiency through dynamic thread scheduling, and solves the problems of data frame loss and incapability of real-time processing in a traditional architecture.

The invention discloses a lightweight identity authentication and data security interaction method, system, equipment and medium for a protection measurement and control device, and relates to the technical field of power system information security. The method comprises the steps that the protection measurement and control device and an edge gateway carry out bidirectional identity authentication based on a preset shared master key and random numbers generated by the protection measurement and control device and the edge gateway; after the authentication succeeds, the two parties derive a session key of the communication based on the random number; between the protection measurement and control device and the edge gateway, service data is encrypted by using a session key, an integrity check code is generated, and a security data message is constructed for transmission; the receiver performs integrity verification and decryption on the security data message to obtain plaintext data; and receiving a key updating instruction from the cloud based on the secure channel, and performing secure updating on a preset shared master key. According to the invention, a mechanism of combining the pre-shared master key with the dynamic session key is adopted, so that the complex certificate chain verification overhead of a PKI system is avoided.

The application discloses a kind of transformer substation in-station instrument automatic meter reading method and system, it is related to power station inspection technical field, including: meter reading work is completed by transformer substation in-station instrument meter reading software, including automatic meter reading module and meter reading photo analysis module;Automatic meter reading module is used to use mobile terminal and main control room computer to establish network communication, obtains meter reading photo by photographing field instrument to mobile terminal, and is returned to main control room computer, is downloaded and is transmitted to meter reading photo analysis module calculation;Meter reading photo analysis module is used to initialize meter reading photo, position target and calculate the instrument contained in meter reading photo, extract the outline of target, identify the edge coordinates of instrument pointer by contour matching mode, calculate the instrument reading pointed by instrument pointer by looking up black and white boundary in binary image.The application can replace artificial field meter reading, automatically obtain the reading of transformer substation instrument by field photo identification, generates instrument data report.