176 results about "Packet loss" patented technology

This invention provides a method and system for testing the high-temperature transmission characteristics of low-capacitance ESD devices, comprising: connecting a low-capacitance ESD device array under test in parallel to a differential signal line of a test channel; simultaneously applying a PRBS code stream signal and a surge pulse superimposed on the PRBS code stream signal to the test channel under a preset temperature environment; extracting the instantaneous drop depth of the eye diagram opening after the surge impact and the recovery time for the eye diagram opening to return to the pre-impact level based on the aligned eye diagram opening change curve; determining that the low-capacitance ESD device array does not meet the protection requirement of no packet loss during surge impact under high-temperature conditions when the instantaneous drop depth exceeds a preset eye diagram drop threshold or the recovery time exceeds a preset recovery time threshold; and determining that the low-capacitance ESD device array does not meet the protection requirement of no packet loss during surge impact under high-temperature conditions when simulating actual working conditions. This invention can simultaneously evaluate the impact of high-temperature environment on the signal transmission quality and surge protection capability of low-capacitance ESD devices under simulated actual working conditions.

A system is provided for managing and coordinating communication between STT / TTS systems and these systems during online conferences, and for mitigating connectivity issues that may occur during online conferences to provide a seamless and reliable conference experience with real-time captioning and / or presented audio. Initially, online conference communication is transmitted via a lossy connectionless protocol / channel. Then, in response to detected connectivity issues with one or more systems involved in the online conference (e.g., which may cause jitter or packet loss), instructions are dynamically generated and processed to enable one or more of the connected systems to utilize a more reliable connection / protocol (such as a connection-oriented protocol) to transmit and / or process the online conference content. Codecs are used at the system level when it is necessary to convert speech to text with associated speech attribute information and to convert text to speech.

This invention discloses a bypass transmission architecture for encrypted network interface cards (NICs) based on parallel feature extraction. The architecture includes: a packet stream input interface, a control path unit, a data path unit, a decision window merging unit, a fragmentation-aware incremental checksum correction engine unit, and a security control unit. This invention can reduce forwarding latency, improve transmission determinism and resource utilization, and enhance packet forwarding efficiency in high-speed network scenarios. By using a deterministic delay storage module that matches worst-case latency, timing synchronization between control flow and data flow is achieved, reducing the risk of timing races and rule misjudgments. Simultaneously, the fragmentation-aware incremental checksum correction engine reduces the risks of insufficient fragmentation packet compatibility, checksum miscalculations, and resulting packet loss in traditional solutions.

This invention provides an information processing method, a node, and a computer-readable storage medium. The information processing method is applied to a first device that has a first sub-interface and a dual-homing relationship with a second device, and the second device has a second sub-interface corresponding to the first sub-interface. The information processing method includes: when it is determined that the second sub-interface is in a failed state and the main interface to which the second sub-interface belongs is in a normal state, announcing first routing information corresponding to the first sub-interface in the network, enabling a third device to send data packets to the first sub-interface according to the first routing information. According to the solution of this embodiment of the invention, when the second sub-interface is in a failed state, by announcing the first routing information corresponding to the first sub-interface, the third device can send data packets to the first sub-interface according to the first routing information, thereby solving the problem of data packet loss caused by the failure of a sub-interface of a device in related technologies.

The application relates to the field of computer data processing and discloses a traffic automatic playback method for software testing, which comprises the following steps: obtaining software traffic data and obtaining data packets and time intervals in the software traffic data; according to interval values and time sequence distribution relationships of the time intervals, a first category is obtained through multi-threshold segmentation, a third category is obtained through threshold segmentation of the first category, and all intervals except the third category in a time interval sequence are classified into a fourth category; a first compression rate of each interval in the fourth category is obtained, and a second compression rate of each interval in the third category is obtained; a correction coefficient is obtained according to the number of elements of the first category to which each interval in the fourth category belongs and packet values of adjacent data packets, and a third compression rate is obtained; and the traffic data is compressed and automatically played back according to the obtained compression rates. The application aims to solve the problems that the existing equal compression of time intervals between data packets leads to packet loss and large differences between traffic data before and after compression.

This invention discloses an intelligent early warning method and system for leased network quality. The method specifically includes: fusing multi-source packet loss time-series data using a federated learning framework and constructing a global micro-packet loss prediction model; fitting the current packet loss time-series data using the global micro-packet loss prediction model to generate a corresponding predicted data sequence; performing multi-time-scale comparative analysis based on the fused multi-source packet loss time-series data and the predicted data sequence to detect data offsets; generating a multimodal image set if an offset is detected; performing multimodal fusion recognition based on the multimodal image set to determine whether continuous fluctuation characteristics exist and to locate the root cause of the anomaly; and evaluating the alarm confidence level to trigger an alarm. This invention can promptly detect micro-packet loss problems in leased networks and accurately determine the root cause of anomalies, achieving intelligent early warning and dynamic monitoring strategy adjustment, improving the efficiency of leased network quality monitoring, enhancing user experience, and ensuring system security.

This application discloses a transmission method and apparatus on a non-primary channel, a transmission method on a primary channel, and the method supports IEEE protocols, such as 802.11be / Wi-Fi 7 / Wi-Fi 8, IEEE 802.11bf / sensing protocol, or IEEE 802.15 / UWB protocol; the method can also support the StarFlash protocol. This method can be applied to scenarios where a site can switch between NPCA mode and PCA mode. The method includes: the AP switching to a non-primary channel; determining that the first moment when the backoff counter associated with the non-primary channel decrements to 0 is earlier than the second moment when the first site switches to the non-primary channel; determining that the non-primary channel is idle from the first moment to the second moment; and sending a first data packet to the first site on the non-primary channel at the second moment; to avoid packet loss caused by the first site not yet switching to the non-primary channel when the AP sends the first data packet to the first site.

This invention discloses a method, system, medium, and product for diagnosing high-resistance faults in low-voltage distribution networks, belonging to the field of distribution network fault diagnosis technology. The method first constructs a comprehensive statistical model integrating amplitude and phase errors, time asynchrony errors, and communication packet loss to obtain measurement data with uncertainty; then, it extracts multi-dimensional node features and incorporates uncertainty to construct feature vectors; next, it constructs and trains a Bayesian graph convolutional neural network based on the power grid topology; finally, it outputs the fault probability and cognitive uncertainty, and combines dual thresholds to complete fault determination. This invention can effectively address the measurement uncertainty problem of smart meters, enhance the ability to identify weak features of high-resistance faults, reduce false alarms and missed alarms, and exhibits excellent robustness and diagnostic accuracy under different fault resistance and noise levels.

The present disclosure provides a reliability assurance method and a related apparatus. A receiving end device (watchdog) detects a continuous packet loss state, and sends the continuous packet loss state to an access network device, so that the access network device adjusts differentiated scheduling and a reliability assurance policy based on the continuous packet loss state.

The application discloses a CTC system localization hardware performance monitoring data visualization implementation method, solves the problems of poor adaptability of existing general monitoring schemes to localization hardware and railway business scenes, disconnection of data and business, weak visualization analysis and difficult special network deployment. The method ensures the improvement of data accuracy through automatic matching and multi-dimensional verification of hardware types, differentiated packet loss completion and business correlation abnormal value filtering; constructs a device-line-business three-dimensional layered model, combines railway operation diagrams for differentiated down-sampling and weighted statistics, and automatically associates business event labels to realize deep binding of performance data and business logic; through multi-index linkage visualization, pixel density detection intelligent labeling and multi-dimensional interaction filtering, the performance bottleneck positioning efficiency is improved; through three-level dependency list management, resource path mapping and static link encapsulation, an executable file that can completely run offline is generated, and the stable operation rate of the localization terminal is ensured.

This disclosure provides a communication method, a terminal, a network device, a communication system, a computer program product, and a storage medium. The method includes: discarding data packets at a first protocol layer of the terminal based on first information; wherein the first information is information obtained from a second protocol layer; the first information is used to indicate that the data packets should be discarded. The technical solution provided by this disclosure can adapt to packet loss mechanisms after the introduction of AI.

The application discloses a multi-AUV anti-communication noise mean square bounded consensus control method and system, relates to the cooperative control technical field of multi-underwater robot systems, and is based on a discrete linear dynamics model and a state measurement model of the multi-underwater robot system, designs a Kalman filter measurement base state estimator, solves filter gain and error covariance, and acquires optimal state estimation values of each robot; based on the discrete linear dynamics model and communication topology characteristics, a state estimation gain matrix and a coupling strength parameter satisfying topology constraints are solved; and based on the optimal state estimation values, the state estimation gain matrix and the coupling strength parameter, a distributed dynamic output feedback controller is designed, sufficient conditions for the multi-underwater robot system to realize mean square bounded consensus are obtained, the influence of communication packet loss and measurement noise on system consensus control is effectively inhibited, and mean square bounded state convergence of the multi-underwater robot system under a fixed undirected topology is realized.

This invention provides an automatic control collaborative data processing method and system for a drone rescue platform, relating to the field of automatic control technology. The method includes: acquiring real-time status data of each drone and environmental data of the rescue area through sensors mounted on multiple drones in a rescue formation; transmitting the status and environmental data collaboratively between the rescue formation to reduce packet loss and obtain multi-source heterogeneous data; standardizing and reorganizing the transmitted multi-source heterogeneous data to form a series of independent discrete data volumes; constructing a unified data reference framework based on the discrete data volumes, and setting a basic analysis block within the data reference framework. This invention ensures the precise, orderly, and efficient conduct of rescue operations.

This invention relates to the technical field of nitrogen pipeline end-of-pipeline monitoring systems, and discloses a nitrogen pipeline end-of-pipeline monitoring system for underground coal mines. The system includes a point confirmation module, which acquires basic mine data, constructs a nitrogen pipeline access-type pressurization model, and determines the theoretical nitrogen access point based on the model; a correction module, which corrects the theoretical nitrogen access point based on the actual mine conditions, and confirms the actual nitrogen access point; a parameter acquisition module, which acquires parameter information at the end of a pipeline branch located at the actual nitrogen access point; and a signal processing and compensation module, which constructs a corresponding signal attenuation prediction model and a wireless transmission algorithm model based on the acquired parameter information. These models are used to quantify the impact of multiple interference sources on the signal. This system can quantify the impact of multiple interference sources on the signal, predict and dynamically compensate for signal attenuation in the mine, and solve data delay and packet loss problems through the wireless transmission algorithm model.

The application provides a chip fast reset method and a programmable distributed network chip. Through pre-freezing and freezing instructions, all service modules are ensured to suspend service processing during reset, and abnormality in the reset process is avoided. Through sending a suspension frame and a cancel suspension frame to control uplink traffic, influence on upstream equipment during reset is prevented, and occurrence of a large number of packet losses is reduced. Packet cache is emptied before reset, and a downlink packet sending path is closed, so that packet loss and session abnormality are avoided. Through independent control of uplink and downlink traffic at an interface, the interface is kept in a link connection state, and greater influence caused by interface link interruption is avoided. Through parallel execution of state acquisition of multiple uFW, chip reset efficiency is improved.

This application provides a data transmission method, a network interface card (NIC) for a data receiving end, an electronic device, and a storage medium. The data transmission method is applied to the NIC of the data receiving end. The NIC writes data to the host memory of the data receiving end via a bus. The data transmission method includes: if the bus bandwidth resources required for the NIC to write the target data to the host memory exceed the bus bandwidth resources available to the NIC, then writing a portion of the target data to the NIC's NIC buffer; the NIC buffer includes a first memory buffer configured for the NIC based on its on-chip memory and a second memory buffer configured for the NIC based on its onboard memory; the data sending end sends the target data to the data receiving end via remote direct memory access; and a portion of the data is written from the NIC buffer to the host memory. The solution of this application can better avoid data packet loss problems when facing sudden traffic surges.

This invention relates to a virtual simulation method and system for limb rehabilitation training based on multimodal biosignal fusion, comprising: for a preliminary synchronization signal set, using signal interpolation technology to fill in the missing parts in data packet loss compensation, identifying the need for time axis deviation correction through delay error detection, and determining the aligned signal sequence; for a calibration feature set, if an abnormal time delay is detected by the delay threshold setting, using a signal resampling method combined with delay compensation interpolation for correction, dynamically managing and storing temporary data through a buffer, and judging the compensated signal sequence; mapping the compensated signal sequence to a virtual limb joint model, updating the joint grid coordinates using real-time correction feedback, and eliminating abrupt noise by combining signal smoothing transition processing to obtain a preliminary action frame sequence; based on the preliminary action frame sequence, analyzing the matching degree with the patient's subtle movement intentions, evaluating the residual delay impact using compensation effect verification, and determining the optimized action frame sequence.

Various aspects of the present disclosure provide methods and apparatuses for supporting communications in non-terrestrial networks to improve existing handover procedures, such as beam handover procedures. To enable the improvements, a terrestrial device can be integrated into non-terrestrial network handover procedures, such as as a relay node between a terminal device and a non-terrestrial serving cell. A cluster list and a preamble can be stored in the terrestrial device, such that a retransmission request can be issued to the terrestrial device instead of the non-terrestrial serving cell when a packet loss occurs. The terrestrial device can determine the cluster list and assign different respective preambles to respective terminal devices, such that a semi-contention free initial access procedure can be employed. The cluster list and the preambles can be shared between a source non-terrestrial serving cell and a target non-terrestrial serving cell or between neighboring terrestrial BSs, such that signaling can be reduced and contention within neighboring cells can be minimized.

The application relates to the technical field of robots, and discloses a robot data transmission method, a robot and a medium, which comprise the following steps: configuring multiple virtual local area networks, performing robot data transmission network isolation based on the virtual local area networks; obtaining load data of the virtual local area networks, adjusting data transmission priorities of the virtual local area networks based on comparison results of the load data and preset load thresholds, adjusting bandwidths of the virtual local area networks based on the adjusted data transmission priorities and the load data; and performing data transmission based on the adjusted data transmission priorities and the adjusted bandwidths. The application judges network congestion states based on load sensing of each virtual local area network in the robot, improves transmission priorities of virtual local area networks in the congestion states, makes the virtual local area networks in the congestion states transmit preferentially, can effectively avoid delay and packet loss caused by network congestion, and guarantees real-time performance of robot control responses and reliability of action execution.

This application provides an automated scheduling and control optimization method and system for shuttle parking garages, relating to the field of shuttle parking garage scheduling and control technology. It receives operational information from equipment units and calibrates their operational status based on event reports. Simultaneously, between two event reports, it actively infers the estimated operational status of the equipment units based on the previously calibrated and updated status, current task instructions, and a preset kinematic model. Finally, based on the calibrated operational status and / or the estimated operational status, it adjusts the subsequent task allocation, path planning, and timing coordination planning of the equipment units. This effectively solves the problem in existing technologies where intermittent delays or data packet loss in local wireless communication links during high-load operation lead to a time difference between the equipment status information received by the central control system and the actual situation, resulting in suboptimal scheduling decisions, increased equipment idling, task conflicts, and even system "negative optimization."

The present application relates to a kind of communication technical field, more particularly to a kind of MBS service activation method and transceiver device, comprising: generating indication information, indication information is used to indicate the current activation state of multicast session corresponding to multicast service, and / or indication information is used to indicate whether multicast service can be received by user equipment in RRC inactive state or CM inactive state after activation, indication information is sent to user equipment;It also includes: receiving indication information from network equipment, indication information is used to indicate the current activation state of multicast session corresponding to multicast service, and / or indication information is used to indicate whether multicast service can be received by user equipment in RRC inactive state or CM inactive state after activation, in RRC inactive state or CM inactive state, according to indication information, multicast service is received;By the technical scheme of the present application, system performance can be improved, user performance and user experience can be improved by avoiding packet loss or additional power consumption of user equipment.

This application provides a vehicle-cloud collaborative instruction execution method and a vehicle-cloud system. The method includes: receiving a message sent from the cloud, wherein the message includes at least one instruction; extracting the message sequence number to obtain a message sequence number, and extracting the instruction sequence number to obtain an instruction sequence number; determining that there is no packet loss when multiple message sequence numbers, multiple instruction sequence numbers, complete instructions, and the execution of the corresponding preceding instructions are all satisfied, wherein complete instructions mean that the instruction content is not missing, the preceding instructions and the corresponding instructions have a dependency relationship, and the instruction sequence number of the preceding instructions is less than the instruction sequence number of the corresponding instructions; and, given that there is no packet loss, executing the instructions sequentially according to their priority, wherein the instruction priority is positively correlated with the importance of the instructions. This solution solves the problem of poor reliability in the execution of vehicle-cloud collaborative control instructions in existing technologies.

This invention belongs to the field of gateway redundancy control, specifically relating to a method and system for lossless switching of redundant gateways. The method includes: before each message enters the transmission process, it is assembled into an event containing the message's content; each event is simultaneously written into an active queue and a mirror queue set by the sender; under normal circumstances, only the active queue is controlled to send events; when a triggering condition causing communication channel switching occurs, the mirror queue and the active queue are controlled to send in parallel; before an event enters the transmission port, a corresponding time stamp is assigned to the event according to its entry order, with the same time stamp for the same event in the mirror queue and the active queue being identical; the receiver removes duplicate data based on the time stamp; if, based on the time stamp of the received events, an abnormal situation of packet loss or out-of-order events is determined, the sender controls the mirror queue to resend all events within a set time window corresponding to the abnormal situation to the receiver according to the event entry order.

This application provides a packet loss measurement method, apparatus, device, and readable storage medium. The packet loss measurement method introduces a maintenance board collaboration mechanism and a distributed counter acquisition architecture. By having the maintenance board uniformly initiate a call request and aggregate the local transmit / receive counter values ​​of the NP chips on each LPU board, the LM measurement no longer depends on the transmit and receive interfaces being located in the same hardware resource unit. It effectively supports packet loss measurement in multi-path load balancing scenarios such as Link Aggregation (LAG) and ECMP. It allows data streams to be forwarded evenly among multiple NP chips while still providing accurate end-to-end operational observability, achieving comprehensive adaptation to complex forwarding topologies in high-performance distributed communication devices.

This invention discloses a packet loss detection method for unmanned surface vessel (USV) formations based on adaptive fuzzy membership filtering. The method includes: establishing state equations describing the motion of both the leader and follower USVs; linearizing these nonlinear equations to simplify the complex curvilinear motion relationships into linear mathematical expressions, thus obtaining simplified state equations for the entire formation system; introducing an adjustable measurement noise figure based on the simplified formation model, dynamically adjusting the filtering intensity according to the current measurement noise level, thereby more accurately estimating the real-time state of the USVs; and simultaneously detecting packet loss during state updates, combining preset communication quality indicators and real-time calculated noise levels to determine the reliability of received data. This invention achieves good detection results for packet loss in noisy channels and can be widely applied in the field of data detection.

This invention discloses a multi-standard compatible wireless display link switching method and system, relating to the fields of wireless display and multi-wireless network switching technology. It addresses the problem of frequent interruptions in wireless displays when multiple standards coexist (WLAN infrastructure, WLAN direct connection, cellular, etc.) and link quality fluctuates, making it impossible to uniformly evaluate and stably and with low interruption complete link switching. The transmitting end establishes a link context containing session numbers and timestamps. RSSI, SNR, retransmission, RTT, packet loss, throughput, and jitter are collected from the primary and auxiliary links according to a unified standard, and normalized and weighted to form a score. Based on historical window thresholds, drop rates, and trend slopes, it determines whether to trigger a switch and selects a target link. During the switching phase, adaptive redundancy and confirmation thresholds are combined with the bearer margin ratio, structural volatility, and switch execution time budget coefficient. Successful confirmation leads to switch submission; failure results in a rollback, ensuring the continuity and stability of the wireless display.

The application discloses a kind of shore base hydrophone array and underwater unmanned vehicle cooperation's underwater target pure bearing tracking system, belong to underwater passive target detection system field, system is by shore base / sea bed hydrophone static node and AUV dynamic node constitute heterogeneous observation network, each node is configured with hydrophone array, positioning and navigation, time synchronization, underwater acoustic communication, storage and processor hardware, processor runs measurement credibility evaluation module, heterogeneous space-time alignment module (fixed delay cache+pose interpolation+forward-backward smoothing), joint state estimation module (RLS+PF+IMM) and quality perception consistency fusion module;AUV node also runs observation geometry optimization control module, system is unified heterogeneous modeling to static node and dynamic node, in false alarm, delay, out of order, packet loss and pose time-varying actual underwater acoustic engineering conditions realize the high-precision, high robustness continuous passive cooperative tracking of underwater slow target.

The application relates to the technical field of data processing, and discloses a data packet loss recovery method, an electronic device and a storage medium, the method comprising the following steps: encoding video data to be encoded to obtain a video data packet; determining the redundancy corresponding to the video data packet according to a configuration mode corresponding to the video data packet; generating a redundant data packet corresponding to the video data packet according to the redundancy; and sending the video data packet and the redundant data packet to a receiving end, so that the receiving end decodes the video data packet and the redundant data packet to recover a lost video data packet. According to the application, the redundancy corresponding to the video data packet is determined according to the configuration mode corresponding to the video data packet, the redundant data packet corresponding to the video data packet is generated according to the redundancy, the video data packet and the redundant data packet are sent to the receiving end, the receiving end decodes the video data packet and the redundant data packet, and the lost video data packet is recovered, so that the recovery efficiency of the lost packet can be improved.

The application discloses a kind of based on the multi-functional interaction control method of security chip of UART communication, it belongs to chip interaction control technical field, mainboard obtains the security service to be executed, and based on the security service to be executed from instruction set matching corresponding command code, based on command code construction request frame, subsequently according to UART service protocol, request frame is sent to security chip by UART serial port, mainboard obtains the response frame transmitted by security chip, and using buffer area is checked to response frame, if check passes, extract complete message in response frame, service analysis is carried out to complete message, and the corresponding service data is obtained.The application is communicated by UART service protocol, and hardware wiring is simplified, corresponding command code is matched using instruction set, to avoid the situation that packet loss or analysis error occurs, ensure the stability of security operation, without specific security chip signal, and a variety of mainstream security chip models can be adapted by UART service protocol.