24 results about "Protocol design" patented technology

The embodiments described herein implement a protocol decoder tool designed by a hardware engineer in a hardware description language (HDL) in a simulator tool for testing and / or in a signal analysis system for decoding protocols in real-time. For example, a user (e.g., hardware engineer, hardware designer, protocol designer) may design a protocol using an HDL and design a protocol decoder tool for decoding the protocol in the HDL. Register transfer level (RTL) files with protocol decoder logic in the HDL may be converted from the HDL to a second language by a converter, compiled into a decoder module by a compiler, and executed in a signal analysis system as the protocol decoder tool. As such, errors in misinterpretation of protocol specifications may be reduced.

The invention provides a multi-protocol communication electric meter intelligent acquisition terminal, and relates to the technical field of intelligent electric meter acquisition terminals, the multi-protocol communication electric meter intelligent acquisition terminal comprises a hardware module, the hardware module is composed of an installation assembly and a positioning assembly, the terminal module adopts a multi-interface and multi-protocol design, the problem that a traditional gateway is difficult to be compatible with different protocol electric meters is solved, and the compatibility between the terminal module and the intelligent electric meter acquisition terminal is improved. Hybrid networking of old electricity meters and novel equipment is supported, the migration cost of a user is greatly reduced, a protective cover of a hardware module has two installation modes of quick assembly and disassembly, the terminal module can be installed and used in different environments while maintenance, overhaul and replacement operations of the terminal module are facilitated, and the terminal module is convenient to use. The problems that an existing acquisition terminal is insufficient in protocol compatibility and single in communication technology, and a protective cover is tedious to mount and dismount are solved.

The invention relates to the technical field of networks, in particular to an interpretation language generation method and device suitable for protocol decoding and a medium, and provides an interpretation language suitable for protocol decoding. The method supports the description of logic combination and complex nested structures, has strong expression ability and good readability, is simple enough in design, greatly reduces the manufacturing difficulty and reading difficulty of decoding scripts and the total amount of codes, and greatly shortens the development period. Meanwhile, in protocol decoding, each network protocol is regarded as a formal language, abstraction is carried out to describe most protocols, an interpretation language which is concise in design is designed to standardize and describe basic logic and combination of the formal language, a plain text protocol decoding script is used for replacing a traditional hard coding decoder, and a complete three-level grammar system of words, sentences and segments is constructed.

This disclosure relates to the field of communication technology, specifically to a resource determination method and apparatus, a terminal, network equipment, and a storage medium. The resource determination method includes: determining a first resource of the Physical Uplink Shared Channel (PUSCH) for transmitting Uplink Control Information (UCI) based on indication information or predefined rules sent by the network equipment. According to this disclosure, the terminal can accurately determine the first resource of the PUSCH used for transmitting UCI, and thus can transmit UCI via the PUSCH on the first resource, instead of transmitting UCI via the PUSCH. This avoids the complexity issues in protocol design, terminal implementation, and network implementation associated with carrying UCI via the PUSCH.

The present disclosure relates to the technical field of communications, and in particular to resource determination methods, a resource determination apparatus, a terminal, a network device and a storage medium. A resource determination method comprises: on the basis of a predefined rule or indication information from a network device, determining a first resource of a candidate physical uplink shared channel (PUSCH) in a time unit that is used for transmitting uplink control information (UCI), wherein the first resource comprises at least one of the following: a time-domain resource and a frequency-domain resource. In the present disclosure, a terminal can determine a first resource of a PUSCH in a time-domain unit that is used for sending UCI, and can then send the UCI on the determined first resource by means of the PUSCH, without the need for sending the UCI by means of a PUCCH, thereby avoiding the complexity problems in aspects such as protocol design, terminal implementation and network implementation that are caused by carrying UCI by means of a PUCCH.

Aspects of the disclosure relate to discovery in a wireless communication network. According to one aspect, a user equipment (UE) may determine to use a service associated with a sidelink communication, determine a contents of a discovery message including an indication of the message being the discovery message for the service, and determine a sidelink resource for use to transmit the discovery message. The UE may then transmit over a user plane using the determined sidelink resource the discovery message including the indication of the message being the discovery message for the service. Other aspects, embodiments, and features are also claimed and described.

The invention provides a CAN (Controller Area Network) bus-based retransmittable ECU (Electronic Control Unit) software online upgrading method, which comprises the following steps of: compiling a new user program to generate a BIN file, reading the to-be-programmed BIN file by upper computer software, adding a file identification head, a file byte length and verification information to the BIN file, calculating the number of blocks of the whole file according to the size of 511 * 8 bytes transmitted by a single block, and updating the number of the blocks of the whole file according to the size of 511 * 8 bytes; the number of bytes of the last block of data, the number of CAN messages of the last block, the data verification value of the whole file and the verification value of each block of data; the BIN file is packaged into a start transmission command, a single block transmission command, a single block transmission end command and a block transmission end command after being subjected to data processing, and compared with the prior art, efficient and safe remote upgrading is realized through an innovative protocol design and a fault-tolerant mechanism on the basis of a low-cost CAN bus, so that the remote upgrading efficiency is improved. A standardized solution is provided for embedded system maintenance, and the method has a wide industrial application prospect.

The application discloses a network protocol design knowledge automatic extraction method based on RFC documents, and comprises the following steps: acquiring a chapter list of the RFC document and a line list in each chapter; acquiring a structured description in the chapter list and the line list to generate a key line list; analyzing the structured description in the key line list to obtain a formatted field list containing partial information and / or an undefined name list of an automaton; supplementing the formatted field list containing partial information and / or the undefined name list of the automaton based on chapter content to which a key line corresponding to the structured description belongs; and obtaining a network protocol design knowledge extraction result based on the formatted field list containing complete information and the automaton migration list. The application can automatically extract relevant network protocol design information.

The present disclosure relates to the technical field of communications, and in particular relates to a resource determination method and apparatus, a terminal, a network device, and a storage medium. The resource determination method comprises: on the basis of indication information sent by a network device or a predefined rule, determining a first resource for a physical uplink shared channel (PUSCH) used to send uplink control information (UCI). According to the present disclosure, a terminal can accurately determine a first resource for a PUSCH used to send UCI, and can further send the UCI via the PUSCH on the first resource without needing to send the UCI via a PUCCH. Accordingly, complexity issues in terms of protocol design, terminal implementation, and network implementation caused by carrying UCI via the PUCCH can be avoided.

This invention relates to the field of communication technology, specifically to a VSOME / IP-based service communication design system, comprising a service requirement decomposition module, an SOA service design module, and a service development and testing module. The service requirement decomposition module selects the SOA service communication function development method based on relevant requirements; the SOA service communication function development method is divided into top-down development and bottom-up development. The SOA service design module includes communication protocol design, communication method design, and service ID design. The service development and testing module includes service development and service testing. Service development is divided into server-side application development and client-side application development. Service testing includes functional debugging and network testing. Functional debugging is performed using LOG files or control terminal printouts. Network testing utilizes CANOE hardware or Wireshark software to monitor and analyze network packets, determining the correctness of the client-server interaction service discovery process and service data communication process, and finally outputting a service test report.

The invention provides a BDSBAS hybrid authentication method fusing a domestic cryptographic algorithm and a TESLA protocol. According to the method, strong authentication of terrestrial broadcast node identities and generation of message digests are realized by introducing an SM3 hash algorithm, and efficient broadcast authentication of enhanced messages is realized by combining a time window delay release mechanism based on a symmetric key chain construction mode of a TESLA protocol. In the aspect of key management, the system generates a root key through a key management center, constructs a TESLA authentication chain through a Hash function, supports regular rotation, and ensures the security and traceability of the key. In the aspect of protocol design, compatible expansion and low-overhead receiving verification of a telegraph text structure are realized. The mechanism has the advantages of low calculation complexity, good broadcast adaptability and high security, is suitable for a large-range broadcast scene of the BDSBAS in civil aviation navigation enhancement, and effectively defends attacks such as data forgery and the like.

The present embodiment discloses a novel process and system for storing versioned data on the Bitcoin blockchain network. This process involves generating derived public keys linked to specific versions and data parts using a key tweaking method, and storing each data part on the blockchain using its associated derived public key. Information about versions and parts are stored in root transactions. An API is provided for managing the stored data, with options for encryption, checksums, data anchoring, timestamping, segmentation, and digital signatures. AIDIOS, a data protocol designed for direct storage and retrieval on the Bitcoin blockchain, is also included. This system allows for significant amounts of data to be stored directly on the blockchain.

This invention provides a general architecture and system for protecting privacy. The general architecture includes a secure computation server and several participating servers, each pre-configured with the same random number generator. The random number generator generates random numbers for each corresponding participating server. The specific steps for the participating servers to perform federated computation are as follows: determining the application scenario of the federated computation; determining a masking scheme based on the application scenario of the participating servers; the masking scheme includes a joint addition protocol, a joint multiplication protocol, a joint division protocol, a joint exponentiation protocol, and a joint comparison protocol. Based on these basic protocols, secure computation schemes for various activation functions are designed, along with a horizontal federated algorithm and a vertical linear regression algorithm. This invention solves the problem of limited adaptability of existing privacy-preserving general architectures to various scenarios.

The application discloses a hybrid networking protocol design method and device, electronic equipment and a storage medium. The method comprises the following steps: obtaining to-be-sent data based on a sending end; wherein the to-be-sent data comprises at least one of service data and message data; constructing the to-be-sent data according to a data structure of a hybrid networking protocol to obtain target data, and sending the target data to a receiving end; wherein the data structure comprises a data type, a data label and grouped data. The technical scheme can solve the efficiency of sending service data to a controller area network node, link security consistency, data sending mode and data concurrent conversion routing problems, effectively improve the feasibility of service data and message data transmission, improve the transmission efficiency of service data and message data, and guarantee the security and consistency of the communication link.

The invention discloses a test software architecture design method based on an adapter mode. The test software architecture design method comprises the following steps of S1, overall architecture design, the system comprises an adapter layer, an adapter interface layer, an adapter implementation layer, an Adapter Manager layer and a test management layer. S2, key module design including adapter interface standard design, dynamic loading and management mechanism design and data conversion and communication protocol design; and S3, designing a communication mechanism between the modules: realizing asynchronous communication between the modules through a message queue or event bus mode, reducing the coupling degree and improving the response speed of the system. According to the method, the problems of compatibility and flexibility of traditional test software in the aspects of cross-platform, multi-environment and function extension are solved.

The application belongs to the field of industrial internet of things, and particularly relates to a cross-domain trust management method for industrial internet of things based on block chain. The basic idea is that: assuming that device A in domain 1 needs to query the trust ticket of device B in domain 2, device A in domain 1 sends the trust ticket query request for device B in domain 2 to the trust management center through the user module, the trust management center starts the trust ticket generator to generate the current trust ticket for device B after receiving the request, and sends the generated trust ticket to the consensus engine, and uses the trust-enhanced practical Byzantine fault tolerance consensus protocol designed by us to perform consensus verification, and finally, the trust ticket query result is sent to device A. The application establishes the trust relationship between the devices in different domains through the trust ticket, and effectively solves the cross-domain trust management problem of industrial internet of things. In addition, a plurality of sub-block chains are introduced to manage the trust, which not only improves the throughput, but also greatly reduces the delay of consensus verification.

The invention provides a CAN bus-based multi-node parallel upgrade protocol design method, which comprises the following steps of: S1, processing a program file of firmware needing to be upgraded, segmenting a firmware program into page sizes, and distinguishing each page; s2, nodes of the same type needing to be upgraded are selected through the upper computer, the application of the nodes jumps to Bootloader, and then the nodes are controlled to enter a Bootloader program; s3, for the selected nodes of the same type, controlling the nodes of the same type to erase Flash; s4, erasing query is carried out, and it is determined that Flash is successfully erased by nodes of the same type; s5, through a broadcast command, performing page transmission of a firmware program on the same type of nodes needing to be upgraded; s6, for the transmitted firmware program, the upper computer carries out page query after transmission of each page is completed; s7, when the upper computer judges that no page transmission exists, upgrading of the nodes of the same type at this time is ended; and S8, repeating the steps S1-S7 for other nodes of the same type which need to be upgraded. The method is suitable for a scene in which firmware updating needs to be carried out on a plurality of embedded control nodes, and particularly has wide application value in the fields of industrial control, automotive electronics, intelligent equipment and the like which depend on a CAN bus to realize data communication.

The application discloses a kind of multi-priority service-oriented underwater acoustic communication network time slot MAC protocol design method, comprising: center node obtains corresponding propagation delay by interacting PING packet with each terminal node, time slot allocation is carried out based on propagation delay;Multi-service scheduling process is modeled as non-preemptive multi-priority M / D / 1 queuing model, the maximum queuing length limit of each priority service is calculated in combination with time slot allocation result;In each round of scheduling period, each priority service is traversed, and a task scheduling function is constructed according to the remaining time and priority weight of each priority service, the highest score of the comprehensive score of the task to be sent is selected as the scheduling task of the current period;Conflict analysis mechanism is introduced, and the scheduling priority of the current queuing task is dynamically evaluated and adjusted;The selected scheduling task, the center node sends data packet according to the allocated time slot, and the receiving node returns ACK response in the preset confirmation time slot, and the unselected scheduling task waits for the next scheduling period.

The application provides a kind of multi-layer anti-quantum security protocol generation verification system and method based on hash drive, defines security target, selects the cryptographic primitive pool with anti-quantum hash function as core, and constructs active network enemy model containing quantum query capability;Based on the cryptographic primitive pool, a multi-layer protocol logic framework is constructed, and specific protocol interaction message sequence is generated;Formal modeling is a computational model that can be processed by automated theorem proving tools;The automated theorem proving tool is used to deduce and verify the computational model, if the verification is not passed, return to iterate and optimize the protocol interaction message sequence, until the final protocol specification that meets all the security targets and can be proved safe is generated.The application integrates protocol design, multi-layer architecture construction and formal verification into one, forms a closed-loop engineering process, and aims to automatically generate and strictly verify security protocols with anti-quantum capability and deep defense characteristics.

The invention discloses a multi-core particle system for an embedded system and a working method. The system comprises a main functional core particle ring, a secondary functional core particle ring and an interface core particle ring, and the main functional core particle ring, the secondary functional core particle ring and the interface core particle ring adopt hierarchical topology and are connected in a point-to-point manner or in a transfer manner. According to the method, the communication reliability and robustness are improved, through the distributed main function core particle ring and the multi-level interconnection structure, dependence on single-center interconnection core particles is avoided, and under the specific data multi-core particle interconnection protocol design, certain multi-core particle system function stability can be guaranteed.

The invention provides an RDMA transmission method and system based on a sliding window. The RDMA transmission method and system are used for controlling the size of an RDMA sending window and forward movement of the sliding window. The method relates to a request end and a response end, the number of in-transit data messages sent by the request end is equal to the size of a sliding window, an acknowledgement packet sent by the response end triggers forward movement of the sliding window, and continuous sending of the data messages of the request end is achieved; the size of the sliding window can be configured in real time; when the sliding window moves forwards, if the number of the in-transit data packets is larger than or equal to the size of the sliding window, the request end does not send the packets, otherwise, the difference between the number of the sliding window and the number of the in-transit data packets is taken as the forward moving amount of the sliding window, and data packets of the number of the forward moving amount of the sliding window are manufactured and sent. The transmission method based on the sliding window is designed for the RDMA protocol, the algorithm performance is high, and the effect of RDMA sending flow control is achieved.

The invention belongs to the technical field of computer application, particularly relates to a node discovery method in a multicast limited environment, and solves the problem that nodes cannot be mutually discovered due to multicast limitation during cross-network segment deployment of a DDS (Data Distribution Service). According to the method, a centralized discovery agent is introduced, the default UDP multicast communication in the DDS domain participant discovery stage is changed into controllable unicast transmission, meanwhile, the end point discovery stage is kept to completely follow a standard real-time publishing and subscribing protocol, and the system compatibility is ensured. Compared with a traditional distributed agent mechanism, the method has the advantages that complex private protocol design is omitted, seamless compatibility with a standard RTPS protocol is achieved, deployment and maintenance cost and technical migration risks are reduced, system reliability is improved, and the method has remarkable practical value and application prospects in multicast limited scenes such as command control and distributed simulation.

This invention discloses a two-layer satellite constellation network topology sampling method and system with controllable delay jitter. It primarily addresses the problem that existing technologies suffer from inaccurate discrete topology delay jitter representation due to the highly dynamic operation of low-Earth orbit satellite networks, failing to meet the delay error constraints of deterministic services. The implementation scheme involves: acquiring the basic constellation parameters of the two-layer satellites and preset service error tolerances; obtaining the network physical motion limit characteristics within and between layers; constructing a total jitter rate physical model reflecting the upper limit of the cumulative delay jitter characteristics of the entire network; mapping the service error tolerance to the maximum safe sampling time step that meets physical fidelity requirements, and using this time step to periodically capture network states, generating a discrete topology snapshot sequence with a time continuity index. This invention improves the accuracy of delay representation in discrete topology modeling, ensuring that the sampled sequence meets the requirements of deterministic networks, and can be used for protocol design, performance evaluation, and system simulation of highly dynamic satellite networks.

The embodiment of the invention provides an LCU system architecture with function safety, a control method and equipment, and is applied to the technical field of power electronics. The system architecture comprises at least two security hosts, IO board cards corresponding to the security hosts and a backboard parallel bus used for connecting the security hosts and the corresponding IO board cards. Wherein the security host comprises a processor, the IO board card is a non-intelligent board card without a processor, and the security host directly accesses and controls each input and output point location on the IO board card in an address mapping mode through the backboard parallel bus. According to the invention, the system is centralized to the security host, the IO board card is degraded into a pure and program-free logic combination circuit, the host directly controls each IO point location through the parallel bus in an address mapping mode, a processor on the IO board card is canceled, software development, protocol design and field configuration work related to the IO board card are fundamentally eliminated, the operation process is simplified, and the operation efficiency is improved. And potential software fault points are reduced.