20 results about "Session layer" patented technology

This disclosure provides a method and system for automotive diagnostic services based on a modular UDS protocol, relating to the field of automotive UDS development technology, including a host computer, PCAN, and an electronic control unit (ECU). The ECU includes a network layer and a session layer. The host computer sends diagnostic messages to the ECU via PCAN. After receiving the diagnostic message from the host computer, the ECU distinguishes the network protocol control information type of the diagnostic message, determines whether the current network state of the network layer allows receiving the diagnostic message frame, and determines whether the addressing mode, session mode, and security level are equal to the ECU's configuration information. If the network layer allows reception, the session layer determines whether the ECU supports the service. After the session layer confirms the response type to be sent, the network layer sends one or more frames according to the protocol type. This disclosure enables rapid iteration when adding or removing UDS services, reducing code modifications.

The invention relates to the technical field of military simulation data engineering, and discloses a military simulation-oriented multi-dimensional semantic knowledge graph framework construction method, which comprises the following steps of: analyzing an object model extension component of a high-level system structure to construct a simulation object model increment state sequence, mapping the multi-dimensional coordinates for data distribution management into a discretized grid data routing domain; analyzing a federal protocol session layer log to determine a member connection reliability index, and calibrating a data accessibility index of each grid unit in combination with a grid data routing domain; generating an extended semantic type identifier for the semantic assertion, and constructing a semantic missing tendency evaluation model associated with the extended semantic type identifier and the data accessibility index to calculate a missing risk metric value for the incremental semantic field; and generating a global consistency compensation factor based on the missing risk metric and fusing the global consistency compensation factor with the semantic triple.

The invention relates to the technical field of vehicle-mounted Ethernet testing, in particular to a method for automatically testing the protocol consistency of a vehicle-mounted Ethernet. The method comprises the following steps: acquiring multi-controller protocols of a network layer, a transmission layer, a session layer, a presentation layer and an application layer in a vehicle-mounted Ethernet controller such as 10 base-T1, 100 base-T1 / TX and 1000 base-T1; the method comprises the following steps: connecting a vehicle-mounted Ethernet controller with test equipment, and debugging data of multiple controllers; debugging a test project in the test equipment, and verifying whether the script logic is consistent with the TCB specification or not; checking case triggering conditions, interaction processes and judgment standards; running the debugged test project, and synchronously scheduling each channel for parallel test in a multi-controller test scene; after the test is completed, automatically exporting a content analysis report and a log containing Ethernet packet capture data and environmental parameters; and according to a report viewing result, analyzing a test failure item reason in combination with a log.

The invention provides a software online operation and maintenance platform, which is characterized in that a heterogeneous system is connected with a session layer to shield differences of different operating systems of a software bottom layer, and software and a host are managed through a standardized application life cycle management interface; the heterogeneous system connection session layer supports the input of a script language and an operation and maintenance platform integration instruction of each operation system; the operation and maintenance platform integration instruction is a logic script obtained after the operation and maintenance platform abstracts a script language of each operation system; and after the heterogeneous system connection session layer is identified as an operation and maintenance platform integration instruction, translating the operation and maintenance platform integration instruction into a corresponding operation system script instruction according to a target operation system transmitted to the operation and maintenance platform integration instruction as required. According to the platform, the heterogeneous system is connected with the session layer to shield the difference of different operating systems at the bottom layer, and a set of standardized application life cycle management interface is defined to realize the comprehensive system and extensible management of software and a host, so that the workload of operation and maintenance personnel is greatly reduced, and the efficiency is improved.

The embodiment of the invention discloses a communication protocol architecture and a communication method applied to communication between large language models. The communication protocol architecture comprises a transmission layer, a semantic layer and a session layer, wherein the transmission layer is used for carrying out communication data transmission between large language models based on a rapid UDP internet connection QUIC and / or a hypertext transfer protocol HTTP-3; the session layer is used for session negotiation between large language models; and the semantic layer is used for converting the session negotiation result generated by the session layer into a data frame form so as to carry out information interaction between large language models through the data frame. According to the technical scheme, communication data transmission between the large language models and session negotiation between the large language models of the session layer are carried out through the transmission layer based on QUIC and / or HTTP-3, and the session negotiation result generated by the session layer is converted into the data frame through the semantic layer, so that information interaction between the large language models is carried out through the data frame; on the basis of reducing resource consumption, timely and accurate data sharing between models can be realized.

Methods, systems, and computer programs are presented for stitching a meta session with an underlying trail fragmented across multiple distributed sessions. One method includes receiving telemetry signals from entities in a session environment that includes at least one identity of a user engaged with applications via respective meta sessions. An underlying trail for each meta session is determined, where the underlying trail is fragmented across two or more sessions with two or more entities. For a first meta session with a first application for the identity of the user, several operations are performed, including correlating a signal hierarchy based on the telemetry signals; constructing, based on the correlated signal hierarchy, a session hierarchy underlying the first meta session distributed across the one or more entities; determining a posture of the first meta session based on the constructed session hierarchy; and enforcing a security policy based on the determined posture.

The application relates to the technical field of military simulation data engineering, and discloses a multi-dimensional semantic knowledge graph framework construction method for military simulation, which comprises the following steps: analyzing an object model extension component of a high-level architecture to construct a simulation object model incremental state sequence, and mapping a multi-dimensional coordinate of data distribution management into a discretized grid data routing domain; analyzing a federal protocol session layer log to determine a member connection reliability index, and combining the grid data routing domain to calibrate a data reachability index of each grid unit; generating an extended semantic type identifier for a semantic assertion, constructing a semantic missing tendency evaluation model associated with the extended semantic type identifier and the data reachability index, and calculating a missing risk measurement value for an incremental semantic field; and generating a global consistency compensation factor based on the missing risk measurement value and fusing the semantic triple.

The invention relates to the technical field of computer simulation, and discloses a military simulation scenario description method based on a knowledge graph, which comprises the following steps: acquiring command and control message data and electromagnetic environment link state data, and dividing command session sets according to message header identifiers; constructing a multi-layer associated knowledge graph comprising a session layer, a statement layer and a traceability layer; counting accumulated link connection duration according to the electromagnetic environment link state data, triggering a scenario grounding operation when a preset threshold is met, and generating an execution element layer in the atlas; statistics is carried out on the pixel scale change amplitude before and after each grounding operation, and a session traceability expansion index is generated through weighting processing; and finally, establishing a complexity identification node bearing the index, writing the complexity identification node into a graph, and outputting a final knowledge graph file, a command and control message sequence capable of being played back and a simulation executable scene package. The structure expansion risk caused by the environment and the protocol mechanism can be quantified in the description stage, and the method is suitable for large-scale simulation interoperation.

The invention discloses an implementation method of a sequence recommendation system based on session popularity applied to a smart hotel, and the method is based on session popularity calculation of interaction time difference division, the interaction history of a user is divided into a plurality of sessions, and the item popularity is calculated at the session level, so that the dynamic updating of the popularity is realized, and the user experience is improved. And a user popularity preference embedded network is provided, firstly, a user preference matrix is constructed based on session popularity, and secondly, the user preference matrix is compressed and fused by adopting a neural network to obtain a user preference vector, so that the potential tendency of a user to items with different popularity levels is quantified. In order to integrate popularity features into a USPP-SR model, the method is based on a popularity self-attention sequence recommendation framework, and the framework integrates interaction time difference, popularity features and user preference information into an embedded layer to obtain a comprehensive embedded vector; a plurality of self-attention blocks combined with a hybrid expert mechanism are stacked, potential interests of target users are mined in a multi-dimensional mode, and personalized recommendation services are provided.

The invention discloses a communication data processing method, which comprises a data hierarchical processing module, a data conversion control module, a receiving end reverse processing module and a data expansion fusion module, and is characterized in that the data hierarchical processing module is based on an OSI seven-layer model, and data is packaged layer by layer at a sending end; the data hierarchical processing module comprises an application layer, a presentation layer, a session layer, a transmission layer, a network layer, a data link layer and a physical layer, the application layer generates user data, defines service logic and supports FTP / SMTP application protocols, and the presentation layer encrypts TLS data, compresses JPEG and converts formats. The method covers integration of data hierarchical encapsulation, a core processing technology, a reverse de-encapsulation process and a modern extension technology, is not only suitable for a traditional communication network, but also widely applied to emerging communication scenes such as 5G, Internet of Things and edge computing, and aims at solving the problems of data transmission efficiency, compatibility and expansibility in a complex network environment.

A device comprises a computing device, including one or more processors, several peripheral communication devices of different communication protocol types, operationally connected to the one or more processors, and a memory for storing processor-executable instructions of an application-layer protocol stack. The processor-executable instructions are adapted so that, when executed by the one or more processors, they cause the one or more processors to perform operations for the respective secure communication sessions to be established with the respective target devices via the respective of the several peripheral communication devices.The processes involve establishing the respective secure communication sessions with the respective target devices via the respective of the multiple peripheral communication devices according to a message exchange of a mutual authentication and key exchange protocol common to the multiple peripheral communication devices.

According to one embodiment, a method, computer system, and computer program product for establishing identity-based hierarchical sessions on a hardware security module (HSM) for binding secure keys to a guest system, is disclosed. The present invention may include establishing a communication channel between the guest system and the HSM, wherein the communication channel is identity-based, end-to-end and encrypted, thereby establishing a session, transferring login information of the guest system through the communication channel to the HSM, maintaining a predefined security level throughout a hierarchy of the sessions, wherein no child session has a higher security level than its parent session, and performing a challenge-response protocol based on a session ownership verification with the guest, such that an HSM generated and secured key is bound to a related session.

The invention provides a traffic application protocol identification method. According to the invention, through the load balancing architecture of the intelligent sampling and traffic identification unit of the convergence and shunting device, and in combination with the real-time protocol knowledge base constructed by the traffic learning unit, high-speed protocol identification in a large-traffic scene is realized. The sampling mechanism greatly reduces the calculation load of deep packet detection; traditional packet-by-packet analysis is replaced by a knowledge base comparison strategy, so that the identification process can be completed only by session layer data; a dynamic aging mechanism guarantees the timeliness of the knowledge base; the load balancing and closed loop feedback design improves the flexibility of the system. According to the scheme, on the premise that the recognition precision is guaranteed, the equipment scale, the computing resource consumption and the operation and maintenance cost are remarkably reduced, and efficient support is provided for operator high-concurrency traffic analysis.

An apparatus comprises a computing device including one or more processors, multiple peripheral communication devices of different communication protocol types operably connected to the one or more processors, and a memory to store processor-executable instructions of an application layer protocol stack. The processor-executable instructions are adapted such that, when executed by the one or more processors, cause the one or more processors to perform operations for respective ones of secure communication sessions to be established with respective destination devices via respective ones of the multiple peripheral communication devices. The operations comprise establishing the respective ones of secure communication sessions with the respective destination devices via the respective ones of the multiple peripheral communication devices according to an exchange of messages of a mutual authentication and key exchange protocol that is common to the multiple peripheral communication devices.

Various embodiments relate to network capabilities. Devices of a network can have different capabilities. The network can provide artificial intelligence (AI) enabled, machine learning (ML) enabled, deep learning (DL) enabled networked access to these capabilities. The capabilities can share a common AI / ML / DL-enabled open layer-based net-centric logical protocol architecture. Also, different features can be achieved through different layers. As an example, AI enabled access can be achieved through the application layer, ML enabled access and DL enabled access can be achieved through the presentation layer and the session layer, and network access is achieved through the transport layer, the network layer, the link layer, and the physical layer.

The invention relates to the technical field of quantum security, and discloses a quantum key secure transmission method and device, a medium and equipment. The method comprises the following steps: establishing a communication connection between a quantum key charging machine and a quantum key management server, wherein the communication connection comprises a channel layer transceiving service and one or more session layer transceiving services based on the channel layer; the quantum key charging machine creates a quantum key file distribution session using the session layer transmit-receive service, and obtains a quantum key from the quantum key management server based on the quantum key file distribution session. According to the invention, the security, adaptability and expandability of quantum key secure transmission can be improved.

The application relates to a FRU equipment management method based on soft bus soft and hard decoupling. On one hand, a distributed soft bus is arranged in a transmission layer, then the distributed soft bus is taken as a center, access of at least one FRU equipment node and a management equipment node into a physical layer to a network layer of an OSI seven-layer architecture is realized, and discovery, connection, networking and establishment of a transmission channel between the management equipment node and the at least one FRU equipment node are realized, so that the equipment with the bus interface can be easily accessed, the access efficiency is greatly improved, and the self-discovery function of the distributed soft bus can also improve the flexibility and expansibility of the management equipment interconnection. On the other hand, an RPC framework is arranged in a session layer, a hardware isolated development platform is provided for application from the session layer to an application layer through RPC technology, the soft and hard isolation development can reduce the complexity of development and design, reduce the design difficulty, and improve the implementation efficiency and stability of application management.

The invention discloses a vehicle-mounted SOME / IP communication processing method and device, and the method comprises the steps: converting a vehicle signal from a CAN bus into SOME / IP service through a target gateway, and providing the SOME / IP service to the outside, and the SOME / IP service comprises a method interface, an event interface or a field interface; aiming at the SOME / IP service converted and generated by the target gateway, respectively collecting communication indexes of a transmission layer, a session layer and a service layer; based on the communication index and the enhanced heartbeat information, a health score of the SOME / IP service is calculated, and when the health score is lower than a preset score threshold, an exception handling mechanism of a communication link is triggered, and the communication link refers to a communication link for converting a vehicle signal into the SOME / IP service. Therefore, a conversion path from the CAN signal to the SOME / IP service can be shortened, communication full-link performance observability is realized, dynamic health assessment and self-healing are supported, and the problems of high communication delay, difficulty in fault positioning and poor service reliability are solved.

The application relates to the technical field of computer simulation, and discloses a military simulation scenario description method based on a knowledge graph, which comprises the following steps: acquiring command message data and electromagnetic environment link state data, and dividing a command session set according to message header identification; constructing a multi-layer associated knowledge graph comprising a session layer, a sentence layer and a traceability layer; according to the electromagnetic environment link state data, the cumulative link connection duration is counted, and when a preset threshold is met, a scenario grounding operation is triggered, and an execution element layer is generated in the graph; the graph element scale change amplitude before and after each grounding operation is counted, and a session traceability inflation index is generated through weighted processing; finally, a complexity identification node carrying the index is established and written into the graph, and the final knowledge graph file, the replayable command message sequence and the simulation executable scene package are output. The application can quantify the structural inflation risk caused by the environment and the protocol mechanism in the description stage, and is suitable for large-scale simulation interoperation.

The application provides an AI active care intelligent interaction method based on long-term memory and multi-round dialogue, and belongs to the technical field of natural language processing.The application realizes fine-grained distinction of the importance of information in long dialogue history by constructing a weighted memory tensor based on an exponential decay mechanism, retains complete interaction tracks and highlights recent semantic contributions, and effectively solves the long dependence information loss problem caused by fixed window truncation; through deep fusion of entity embedding, weighted features of the appearance round and dialogue theme evolution path, joint encoding with timing perception ability is generated and stored in a session layer dictionary, which significantly enhances the system's ability to capture user interest migration; further, through a dynamic window detection mechanism, semantic missing areas in the dialogue are automatically identified and memory enhancement based on linear interpolation is performed, filling the information gap and improving the coherence and pertinence of active questioning.