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43 results about "Internetwork protocol" patented technology

In networking, a communications protocol or network protocol is the specification of a set of rules for a particular type of communication. Multiple protocols often describe different aspects of a single communication. A group of protocols designed to work together are known as a protocol suite; when implemented in software they are a protocol stack. The terms are often intermingled; people may use the term "protocol" to refer to a software implementation, or use "protocol stack" to refer to the specification. Most recent protocols are assigned by the IETF for Internet communications, and the IEEE, or the ISO organizations for other types. The ITU-T handles telecommunications protocols and formats for the PSTN. As the PSTN and Internet converge, the two sets of standards are also being driven towards convergence.

Data management method, device and equipment and readable storage medium

The invention provides a data management method, device and equipment and a readable storage medium, and the method comprises the steps: obtaining key value cache data generated by a first type of computing power unit in a pre-filling stage, transmitting the key value cache data to a memory pool, and caching the key value cache data in the memory pool; and in response to a data acquisition demand of the second type of computing power unit in a decoding stage, transmitting the specified key value cache data cached in the memory pool to the second type of computing power unit according to the data acquisition demand. According to the technical scheme of the invention, the memory pool is arranged and the aggregated transmission channel is utilized, so that the transmission efficiency of the key value cache data between the computing power devices is effectively improved, the data transmission delay is reduced, and the network transmission protocol overhead is reduced, thereby improving the data interaction efficiency of the computing power devices in a pre-filling stage and a decoding stage, and improving the user experience. The utilization of computing power resources is optimized, and the throughput and performance of large model reasoning are improved.
Owner:XINHUASAN INFORMATION TECH CO LTD

Data storage method and device, equipment and storage medium

The embodiment of the invention relates to the technical field of data storage, in particular to a data storage method and device, equipment and a storage medium, and aims at improving the data read-write efficiency of distributed storage. The method comprises the following steps: receiving a data writing request sent by a client; performing erasure code calculation on business data corresponding to the data writing request to obtain storage data; through a preset network transmission protocol, the storage data is written into a hard disk space pre-applied from at least one data storage node, and the minimum storage unit of the hard disk space is a data block; and recording a mapping relationship between the business object range corresponding to the storage data and the internal object range in the data storage node in the metadata storage node.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Distributed storage management method, electronic equipment, storage medium and program product

The invention discloses a distributed storage management method, an electronic device, a storage medium and a program product, and relates to the technical field of distributed storage. Cyclic redundancy check codes corresponding to data are written into metadata, the amount of metadata written into a distributed key value storage database is reduced, the performance of the distributed key value storage database is improved, and the reliability of the distributed key value storage database is improved. According to the method, the network transmission protocol is expanded, the metadata separation transmission mode is supported, the data logic block pointer and the independent metadata logic block pointer are supported when the distributed storage protocol access layer processes the read-write request, data copying of distributed storage is reduced through the metadata separation transmission mode, and the read-write performance is improved.
Owner:JINAN INSPUR DATA TECH CO LTD

Network transmission protocol intrusion detection method and system

The invention relates to the technical field of network security detection, and discloses a network transmission protocol intrusion detection method and system. The method comprises the following steps: acquiring a network transmission protocol data stream, extracting head features and load features of a data packet, and integrating to form an original feature set; the original feature set is classified according to protocol types, different protocol clusters are divided, and corresponding identifiers are marked; constructing a dynamic feature filter based on the protocol cluster identifier, and screening a feature subset associated with the current protocol cluster from the original feature set; inputting the feature subset into a protocol state analysis model, and outputting a protocol state vector and abnormal behavior probability distribution by the model; and generating an intrusion detection result according to the two, and triggering a corresponding defense response instruction. According to the method, different protocol characteristics are adapted through protocol cluster classification and dynamic characteristic screening, accurate identification of protocol intrusion behaviors is realized, and the method can be applied to various scenes depending on a network transmission protocol.
Owner:XI'AN PETROLEUM UNIVERSITY

Performance diagnosis method and device of network transmission protocol, electronic equipment and storage medium

The invention provides a performance diagnosis method and device for a network transmission protocol, electronic equipment and a storage medium, and the method comprises the steps: obtaining a log file of the network transmission protocol through a sliding window, wherein the log file is in a target log format; obtaining multi-dimensional time series data based on the log file; the multi-dimensional time sequence data comprises a plurality of fields representing the performance of the network transmission protocol; performing multi-dimensional index calculation on one or more fields in the multi-dimensional time sequence data, and obtaining an anomaly detection result of the network transmission protocol according to a multi-dimensional index calculation result; and under the condition that the anomaly detection result is abnormal, determining the performance anomaly type of the network transmission protocol according to the anomaly detection result based on a pre-trained anomaly positioning model. The method not only can meet the anomaly positioning timeliness of the network transmission protocol, but also can fully cope with a complex and changeable protocol stack core algorithm anomaly scene, and can accurately position the anomaly without learning a specific protocol stack core algorithm anomaly scene.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Apparatus and method for transmitting acknowledgement in network transport protocol

Aspects of the disclosed embodiments relate to a protocol for ensuring data reliability in a communication network. To this end, a first network device is proposed, the first network device being configured to: send a data packet and a polling message to a second network device; in response to each polling message, at least one status message is received from the second network device, the at least one status message indicating which of the data packets sent prior to the polling message have been correctly received and / or lost at the second network device. Specifically, the first network device is used for adjusting the rate of sending the polling message based on a parameter set. Furthermore, a second network device is proposed, the second network device being configured to: receive a data packet from the first network device; in some conditions, at least one proactive status message is sent to the first network device.
Owner:HUAWEI TECH CO LTD

Application software remote deployment method and device of railway signal general safety system

The invention provides an application software remote deployment method and device of a railway signal general safety system, and relates to the technical field of software deploying.The method comprises the steps that firstly, network transmission protocols supported by all servers and all clients in the railway signal general safety system are determined; then deploying the network transmission protocol to all the servers and all the clients; and finally, remotely deploying the application software in all the servers by using any one of all the clients. According to the application software remote deployment method of the railway signal general safety system, storage hardware equipment is not needed, manual updating on each server is not needed, time and resources are saved, and convenience, safety and isolation of remote deployment of the application software of the railway signal general safety system are improved.
Owner:CRSC URBAN RAIL TRANSIT TECH CO LTD

Remote file processing method and device, equipment, medium and program product

The invention discloses a remote file processing method, device and equipment, a medium and a program product. Comprising the steps that through a file database, when it is determined that a user side initiates a downloading request for a first file, a plurality of binary stream blocks are generated according to the first file, and the binary stream blocks are sent to a server side; the binary stream blocks are grouped according to the number of the ports through the server side, the corresponding relation between each block group and each port is established, and the binary stream blocks are transmitted to the user side through the ports corresponding to the block groups and a first network transmission protocol; and through the user side, after it is determined that the binary stream blocks are received, the first file is restored according to the binary stream blocks, and the first file is stored. According to the technical scheme, the method and the device are suitable for the field of distributed technologies, remote downloading of the ultra-large file can be achieved, and the transmission stability of the ultra-large file is improved.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

Serialization and deserialization method of IPU acceleration service grid based on FPGA

The present disclosure provides a serialization and deserialization method of an FPGA-based IPU acceleration service grid. The serialization and deserialization method of the FPGA-based IPU acceleration service grid comprises: determining all message objects of remote procedure calls to be sent and received; allocating a sending descriptor ring and a receiving descriptor ring and configuring a control register through a memory-mapped I / O operation; defining a message format of a remote procedure call through a domain-specific language for serialization and deserialization; when in a transmission mode, creating a sending descriptor and filling it into the sending descriptor ring; the FPGA obtains the sending descriptor from the sending descriptor ring and sends encoded data to a system-on-chip; and the system-on-chip sends the encoded data through a network transmission protocol. The embodiments of the present disclosure solve the problems of performance bottleneck, high delay and high CPU resource occupation in the prior art.
Owner:SHANGHAI ORIENTAL COMPUTER TECHNOLOGY CO LTD

A method for heterogeneous calling of the 3D computing power of GPUs through API software

The present invention belongs to the field of GPU computing in computers and relates to a method for heterogeneously invoking the 3D computing capabilities of a GPU through API software, comprising the following steps: S1. Calculate the capabilities of the API to call the GPU process, including command storage, loading, and encoding and parsing. Among them, the data interaction channel is heterogeneously processed by software to perform virtual encapsulation; S2. According to the needs of users, the single-precision calculation, double-precision calculation, and vector calculation requirement pools are respectively divided and marked to form calculation packages; S3. Provide them to remote users through the network. The remote users decompress and decompose the encapsulated calculation package process to realize the demand operations for different remote users. The advantages of the present invention are as follows: Regardless of the classification requirements of any type, they will be encapsulated through this network protocol, and then the compatibility of the network transmission protocol is improved, and computing power is calculated based on the needs of users.
Owner:DEEP THINKING COMPUTER (QINGDAO) CO LTD

An Industrial Internet of Things Sub-service Platform Data Aggregation System and Method

This solution belongs to the technical field of industrial Internet of Things, and specifically relates to a data aggregation system and method for an industrial Internet of Things sub-service platform. The method includes the following steps: Step 1: Multiple collection devices in the object platform collect industrial data of multiple industrial devices with multiple communication methods and multiple protocol specifications and transmit it to the sensor network sub-platform; Step 2: The sensor network sub-platform performs protocol conversion on the industrial data, and then after packet processing, transmits it to the sensor network main platform; Step 3: The sensor network main platform uploads the industrial data uploaded in packets to the data aggregation interface through the UDP network transmission protocol of the data collection interface. This solution can meet the high-concurrency access of large-scale sensing devices in different application fields, with multiple communication channels and multiple communication protocols, and realize the real-time parallel transmission and processing of massive collected data.
Owner:CHENGDU QINCHUAN IOT TECH CO LTD

Message forwarding method and device, switch equipment and storage medium

The invention relates to the field of message forwarding, and discloses a message forwarding method and device, switch equipment and a storage medium. According to the message forwarding method, when a message arrives at a switch and is successfully received, the message state is obtained through a network transmission protocol module, and when the message state accords with a preset state, the message is forwarded to the switch equipment; a message is forwarded from a first port of a switch to a second port, then a forwarding decision of the message is obtained through an exchange processing module, a forwarding outlet of the message is determined, and if the forwarding outlet of the message is consistent with a preset outlet, the message is forwarded to the first port through the second port and sent to a network transmission protocol module to be copied. And then the data is sent to the backup port so as to complete backup transmission. According to the message forwarding method provided by the invention, on the premise of not increasing the network construction cost and reducing the CPU consumption, the three-layer forwarding function of the HSR / PRP message is realized on one switch by combining the port loopback and port isolation technologies.
Owner:深圳市三旺通信股份有限公司

Firmware upgrading method and related equipment

The embodiment of the invention discloses a firmware upgrading method and related equipment, and is used for the technical field of firmware processing. In the embodiment of the invention, the method comprises the following steps: obtaining the volume of a firmware differential package required by a target device for firmware upgrading and obtaining the network quality of a communication network used for downloading the firmware differential package from an upgrading server, and the upgrading server is used for generating the firmware differential package; based on the volume of the firmware differential packet and the network quality of the communication network, selecting a target network transmission protocol with the optimal data transmission rate under the communication network from a plurality of network transmission protocols; controlling the target device to download a firmware differential packet from the upgrade server based on the target network transmission protocol; the speed of downloading the firmware differential package by the target equipment can be improved, and the firmware upgrading speed of the target equipment is effectively improved.
Owner:FIBOCOM TECHNOLOGY CO LTD

Link detection system and method for serializer / deserializer

The invention provides a link detection system and method for a serializer / deserializer, and belongs to the technical field of link detection, and the link detection system runs in a system on chip, and comprises a detection module which comprises a register configured in the serializer / deserializer and based on a transmission control protocol / internetwork protocol, the detection module is used for periodically reading a register through an integrated circuit bus and generating a detection message; and the judgment module is connected with the detection module and is used for receiving the detection message and determining the connection state of the physical transmission link of the image acquisition data according to the detection message. The link detection mechanism of the serializer / deserializer provided by the invention has the beneficial effects that a TCP / IP protocol stack does not need to be integrated, the register configured in the serializer / deserializer is directly read through the integrated circuit bus of the system on chip so as to detect the connection state of a physical transmission link of image acquisition data, link faults can be timely and accurately detected, and the detection efficiency is improved. And meanwhile, the system power consumption increase caused by frequent link detection is avoided.
Owner:MOTORCOMM (SHANGHAI) ELECTRONIC TECH CO LTD

Network transmission protocol intrusion detection method and system

The application relates to the technical field of network security detection, and discloses a network transmission protocol intrusion detection method and system. The method comprises the following steps: collecting network transmission protocol data streams, extracting packet header features and payload features, and integrating to form an original feature set; classifying the original feature set according to protocol types, dividing different protocol clusters and marking corresponding identifiers; constructing a dynamic feature filter based on the protocol cluster identifiers, screening a feature subset associated with the current protocol cluster from the original feature set; inputting the feature subset into a protocol state analysis model, outputting a protocol state vector and an abnormal behavior probability distribution from the model; generating an intrusion detection result according to the two, and triggering a corresponding defense response instruction. Through protocol cluster classification and dynamic feature screening, the method adapts to different protocol characteristics, realizes accurate identification of protocol intrusion behaviors, and can be applied to various scenes relying on network transmission protocols.
Owner:XI'AN PETROLEUM UNIVERSITY

5G Internet of Things communication data processing system based on smart city

The invention discloses a 5G Internet of Things communication data processing system based on a smart city, and relates to the technical field of data processing, the system comprises a communication center, and the communication center is in communication connection with a data acquisition module, a data processing module, a data analysis module and a communication loading module; communication data acquisition optimization is performed through data source selection, sampling rate optimization, data stream processing and network transmission protocol optimization of the data acquisition module; carrying out calculation optimization scheduling, encryption operation and node verification through the data processing module; the data analysis module is provided with a data reprocessing unit, a data modeling unit and a data visualization unit; and the communication loading module is provided with loading queues and queuing queues, and loading of the communication data as required is realized by increasing or decreasing the number of the loading queues, so that the purpose of processing the communication data is realized.
Owner:YINGKOU HONGYUN TECHNOLOGY CO LTD

Method, system and device for finely adjusting and intelligently processing and storing machine room dynamic environment data in combination with large model

The invention discloses an intelligent processing and storage method, system and device for machine room dynamic environment data combined with large model fine tuning, and the method comprises the steps: carrying out the grid division of the machine room dynamic environment data collected through a plurality of network transmission protocols through an intelligent grid segmentation method, and adjusting the size of a grid based on the use density of the grid; calculating the comprehensive score of each grid and the comprehensive score of each area to obtain a difference value between the comprehensive score of the grid and the comprehensive score of each area, and evaluating the performance state of the grid according to the difference value; and storing the processed data in a database, training a large model by using the processed data, performing first-stage fine adjustment and second-stage fine adjustment, storing the whole-process data, and performing regular backup. The system comprises a data acquisition and grid division module, a performance analysis module, a data caching module and a large model training and safety fine tuning module. According to the invention, high-efficiency collection, intelligent analysis and accurate control of machine room dynamic environment data are realized, and the intelligent level of energy efficiency management and the stability of system operation are effectively improved.
Owner:CHINA TELECOM DIGITAL INTELLIGENCE TECH CO LTD

5G Internet of Things communication data processing system based on smart city

The invention discloses a 5G Internet of Things communication data processing system based on a smart city, and relates to the technical field of data processing, the system comprises a communication center, and the communication center is in communication connection with a data acquisition module, a data processing module, a data analysis module and a communication loading module; communication data acquisition optimization is performed through data source selection, sampling rate optimization, data stream processing and network transmission protocol optimization of the data acquisition module; carrying out calculation optimization scheduling, encryption operation and node verification through the data processing module; the data analysis module is provided with a data reprocessing unit, a data modeling unit and a data visualization unit; and the communication loading module is provided with loading queues and queuing queues, and loading of the communication data as required is realized by increasing or decreasing the number of the loading queues, so that the purpose of processing the communication data is realized.
Owner:深圳市智慧企业服务有限公司

Satellite network transmission protocol timer adaptive adjustment method

The application discloses a kind of satellite network transmission protocol timer adaptive adjustment method.For the problem that ACK feedback is extremely sparse in satellite network, leading to the difficulty of end-to-end delay estimation and timely convergence, the application obtains the delay cycle table of transmission path between any source-destination node pair based on the periodic topology link planning of satellite network, and maintains it locally in each node.During the connection establishment and operation of the transmission protocol, the transmission path delay of the current time window is obtained by searching the table in real time, and this is used as a reference to configure the time class timing parameters of the satellite network transmission protocol, and it is adaptively reconfigured when the delay cycle switches.The application makes the timer parameters of the transmission protocol consistent with the actual link, eliminates false timeout judgment and redundant retransmission, and improves the link utilization efficiency and end-to-end transmission performance.
Owner:NANJING UNIV

Serialization and deserialization method of IPU acceleration service grid based on FPGA

The invention provides a serialization and deserialization method of an IPU acceleration service grid based on an FPGA (Field Programmable Gate Array). The serialization and deserialization method of the IPU acceleration service grid based on the FPGA comprises the following steps: determining all to-be-sent and to-be-received message objects called by a remote procedure; distributing a sending descriptor ring and a receiving descriptor ring, and configuring a control register through memory mapping I / O operation; defining a message format of the remote procedure call through a domain-specific language for serialization and deserialization; when in the transmission mode, the application creates a transmission descriptor and fills the transmission descriptor ring with the transmission descriptor; the FPGA obtains the sending descriptor from the sending descriptor ring and sends the coded data to a system-level chip; and the system-on-chip sends the coded data through a network transmission protocol. According to the embodiment of the invention, the problems of performance bottleneck, high delay and too high CPU resource occupation in the prior art are solved.
Owner:SHANGHAI ORIENTAL COMPUTER TECHNOLOGY CO LTD

Network transmission protocol optimization method and system based on distributed soft bus

The invention provides a network transmission protocol optimization method and system based on a distributed soft bus, and belongs to the field of communication. The method comprises the following steps: dividing data to be transmitted into a plurality of data segments, grouping the segmented data, sending the grouped data in sequence, confirming the grouped data by a receiver, and calculating an integrity index; according to the partial confirmation or complete confirmation sent by the receiver, dynamically adjusting the packet size, calculating the network quality score, and realizing a self-adaptive network environment; different transmission priorities are set for different types of data, and priority and timely transmission of key data is ensured by calculating priority scores; and optimizing the network transmission protocol through the three parameters of the integrity index, the priority score and the network quality score. According to the method, various dynamic optimization mechanisms are effectively integrated and applied to the field of data transmission.
Owner:WEAPON EQUIP RES INST OF CHINA NAT WEAPON EQUIP GRP

A federated training acceleration method based on an unreliable transmission protocol

The application relates to the technical field of machine learning and computer networks, and discloses a federated training acceleration method based on an unreliable transmission protocol, which solves how to maximize the receiving rate of a complete layer under uncertain packet loss by designing a congestion feedback-based unreliable layer transmission algorithm; and guarantees the model precision of the federated training under parameter loss by designing a federated freezing training framework based on layer parameters. The federated training acceleration method based on the unreliable transmission protocol designs a wearable federated training acceleration technology based on the unreliable transmission protocol. The key idea is to directly ignore the network-side lost parameters instead of performing complex detection and retransmission operations on the network transmission protocol, so that the end-to-end network throughput is greatly improved; then, based on the parameter redundancy characteristics of machine learning training, the receiving end replaces the network packet loss with the previous round of parameters, and adopts a layer freezing training technology to realize high-precision training of the federated learning under parameter loss.
Owner:SHENZHEN RES INST OF BEIJING UNIV OF POSTS & TELECOMM

A method for transmitting a code stream, an electronic device, and a computer-readable storage medium

This application provides a method for transmitting video streams, an electronic device, and a computer-readable storage medium. The electronic device can be a smart screen or other device that includes video transmission interfaces such as HDMI and DP and is capable of acquiring online live streaming content. Whether the HDMI or other video transmission interface of the smart screen is in a working state or not, the original HDMI video stream can be copied, stored, and decoded to obtain the image data and / or audio data corresponding to the clean HDMI video stream. Then, the image data and / or audio data are standardized and encoded, and the HDMI video standard stream including image data and / or audio data is transmitted to devices such as mobile phones and tablets, enabling the devices to play HDMI video. This process shields the hardware differences between different electronic devices, can obtain customized video streams input from external devices, and, in conjunction with network transmission protocols, extends independent audio and video encoded data to other devices for playback.
Owner:HUAWEI TECH CO LTD

Distributed storage management method, electronic device, storage medium, and program product

The application discloses a distributed storage management method, an electronic device, a storage medium and a program product, relates to the technical field of distributed storage, and writes a cyclic redundancy check code corresponding to data into metadata, reduces the amount of metadata written into a distributed key-value storage database, and improves the performance of the distributed key-value storage database. The application extends a network transmission protocol, supports a metadata separate transmission mode, supports a data logical block pointer and an independent metadata logical block pointer when a distributed storage protocol access layer processes a read-write request, reduces data copying of the distributed storage through the metadata separate transmission mode, and improves read-write performance.
Owner:JINAN INSPUR DATA TECH CO LTD

A remote file processing method, device, equipment, medium and program product

The application discloses a remote file processing method, device, equipment, medium and program product. The method comprises the following steps: when it is determined that a user end initiates a download request for a first file, a plurality of binary stream cut blocks are generated according to the first file through a file database, and the binary stream cut blocks are sent to a server; the binary stream cut blocks are grouped according to the number of ports through the server, a corresponding relationship between each cut block group and each port is established, and the binary stream cut blocks are transmitted to the user end through the ports corresponding to each cut block group respectively and a first network transmission protocol; after it is determined that the binary stream cut blocks are received, the first file is restored according to the binary stream cut blocks through the user end, and the first file is stored. The technical scheme is suitable for the distributed technology field, can realize remote downloading of a super large file, and improves the transmission stability of the super large file.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

Apparatus and method for transmitting an acknowledgment in a network transport protocol

Aspects of the disclosed embodiments relate to protocols for ensuring data reliability in a communication network. To this end, a first network device is proposed, which is configured to: send data packets and polling messages to a second network device; in response to each polling message, receive from the second network device at least one status message indicating which of the data packets sent before the polling message have been correctly received and / or have been lost at the second network device. Specifically, the first network device is configured to adjust the rate of sending the polling messages based on a set of parameters. In addition, a second network device is proposed, which is configured to: receive data packets from a first network device; and under certain conditions, send at least one proactive status message to the first network device.
Owner:HUAWEI TECH CO LTD

Multi-tool remote log gathering and copying method and system based on disk adaptation

The invention discloses a multi-tool remote log gathering and copying method and system based on disk adaptation, and belongs to the technical field of log management. The method comprises the following steps: in a remote command sending and receiving stage, a control end generates a specific log copying command for different tools according to a preset rule of log storage positions of the tools, and sends the specific log copying command to a corresponding test end host through a network protocol; in the log copying and transmitting stage, according to the analysis result, an obtaining mode is selected to obtain a log, log copying operation is executed, then the test end host carries out data encryption on a log file, and then the log file is sent back to the control end through a network transmission protocol; and a log processing and downloading stage: after receiving the log files from each test end host, the control end automatically classifies and arranges the log files according to a preset classification rule, and provides a log downloading interface for a user. For different types of tools, the system automatically matches the optimal acquisition mode, and compared with manual judgment and operation, the efficiency is greatly improved.
Owner:JIANGSU XINSHENG INTELLIGENT TECH CO LTD

Seamless roaming communication system for mining auxiliary transport vehicle

The utility model relates to the technical field of coal mine communication, in particular to a seamless roaming communication system for a mining auxiliary transport vehicle, which comprises a vehicle-mounted network terminal device arranged on a mining trackless rubber-tyred vehicle, and an IAPM fast switching WiFi module is arranged in the vehicle-mounted network terminal device; and the ground network server is connected with the IAPM fast switching WiFi module through a ring network. 802.11 k / v / r network transmission protocols are loaded in the vehicle-mounted network terminal equipment and the base stations, the base station which is closest to the IAPM fast switching WiFi module and has the best signal strength in the base stations is defined as a main connection base station, the next base station is defined as a standby connection base station, the IAPM fast switching WiFi module can be continuously switched to be connected with different main connection base stations when the mining trackless rubber-tyred vehicle travels, and the IAPM fast switching WiFi module can be continuously switched to be connected with the different standby connection base stations when the mining trackless rubber-tyred vehicle travels. And keeping communication with a ground network server. Through the active station switching function of the IAPM fast switching WiFi module and the real-time monitoring and auxiliary control station switching functions of the roaming control service of the server side, data and video uploading in the driving process do not lose packets, and communication is not interrupted.
Owner:TIANDI CHANGZHOU AUTOMATION +1

Satellite network transmission protocol timer adaptive adjustment method

The invention discloses a satellite network transmission protocol timer adaptive adjustment method. In order to solve the problem that end-to-end time delay estimation is difficult to converge in time due to extremely sparse ACK feedback in a satellite network, a time delay periodic table of a transmission path between any source and destination node pairs is obtained based on satellite network periodic topology link planning, and local maintenance is carried out on each node. In the connection establishment and operation process of the transmission protocol, the table is searched in real time to obtain the transmission path time delay of the current time window, the transmission path time delay is used as a reference to configure the time type timing parameter of the satellite network transmission protocol, and self-adaptive reconfiguration is carried out when the time delay period is switched. According to the invention, the timer parameter of the transmission protocol is consistent with the actual link, error overtime judgment and redundant retransmission are eliminated, and the link utilization efficiency and the end-to-end transmission performance are improved.
Owner:NANJING UNIV

JSON (JavaScript Object Notation) network transmission protocol zero-code universal interface method and system

The invention relates to the technical field of software development and network transmission protocols, in particular to a JSON (JavaScript Object Notation) network transmission protocol zero-code universal interface method and a JSON network transmission protocol zero-code universal interface system, which comprise the following steps of: (1) designing a JSON network transmission protocol; (2) a zero-code universal interface; (3) implementation of an ORM library; and (4) designing an efficient error processing mechanism. By designing an efficient JSON (JavaScript Object Notation) network transmission protocol, realizing a zero-code universal interface, constructing an advanced ORM (Object Recognition Model) library and supporting a real-time change characteristic, the invention provides a complete set of perfect tool for developers, and aims to obviously improve the development efficiency, reduce the maintenance cost and improve the flexibility and expansibility of the system. The design concepts and the implementation methods not only provide powerful support for traditional Web application, but also inject new vitality and motivation in the digital transformation process of modern enterprises.
Owner:CHINA TRANSPORT INFORMATION TECH GRP CO LTD