51 results about "Bandwidth throttling" patented technology

The invention discloses a federated learning image classification method based on time extension gradient cumulative average. Each client uses a local data set to train a local model to obtain gradient information of a current communication round, and uploads the gradient information to the central server after compression; the client continues to perform local training in a time period from the time when the client starts to upload the compression gradient information of the current communication round to the time when the server completes the compression gradient information aggregation of the current communication round; the central server side aggregates the compression gradient information to obtain average compression gradient information of the current communication round, and issues the average compression gradient information to the client side to update a local model of the (t + beta) th communication round; and repeating the steps until the training is completed, and inputting the to-be-detected image into the local model to obtain an image classification result. The method shows excellent performance under various data sets and different compression levels, has higher convergence speed and model precision, and solves the problem of low communication efficiency caused by network delay and bandwidth limitation in image classification of federated learning.

The invention provides a data transmission method, device and equipment and a readable storage medium, and the method comprises the steps: monitoring the data flow of each calculation unit communicating with the outside, and configuring a data channel between a busy calculation unit and an idle calculation unit to be opened; issuing a first shunting instruction to the busy computing unit, and shunting the data message of the busy computing unit to the idle computing unit; and issuing a second shunting instruction to the idle computing unit, and forwarding the second shunting instruction outwards through a data channel of communication between the idle computing unit and the outside. According to the technical scheme of the invention, the BMC intelligently monitors the flow, and dynamically opens the data channel between the calculation units, so that the overload calculation unit can distribute the data to the idle unit for forwarding, thereby effectively breaking through the bandwidth limitation of the physical port of the single calculation unit, solving the problem of local flow congestion, and improving the reliability of the system. And the network throughput and the resource utilization efficiency of the whole machine system are obviously improved.

The invention provides a PCDN terminal identification and control method and device, equipment and a medium, and the method comprises the steps: obtaining a multi-dimensional behavior feature based on the communication behavior data of a target terminal, and constructing a multi-dimensional behavior feature vector based on the multi-dimensional behavior feature; inputting the multi-dimensional behavior feature vector into a pre-trained classification model to obtain an identification result of whether the target terminal is a suspicious terminal; in response to the identification result that the target terminal is a suspicious terminal, analyzing each communication flow of the target terminal in the global flow table one by one, and judging whether each communication flow is a P2P uplink flow with a content distribution intention; a bandwidth limiting measure is applied in the upstream direction of a communication flow with respect to a P2P upstream stream having a content distribution intention. According to the embodiment of the invention, the method can achieve the high-accuracy recognition of the PCDN terminal and the corresponding P2P uplink flow, and achieves the flow control with the minimum intrusiveness.

The invention relates to a traffic flow prediction method and system based on space-time delay and heterogeneity modeling, and belongs to the technical field of intelligent traffic. The method aims to solve the problem of insufficient prediction precision caused by difficulty in capturing time-space propagation delay and spatial heterogeneity of traffic flow in the existing prediction technology. According to the technical scheme, the method comprises the following steps: explicitly quantifying and fusing space-time delay information by using a dynamic time warping algorithm with bandwidth limitation through a space-time dynamic delay capture module; fusing multi-granularity time periodicity and spatial characteristics through a space-time embedding module; generating dynamic weight and bias parameters of self-adaptive spatial-temporal heterogeneity through a dynamic parameter optimization module; and finally, the optimized parameters are fused into a Transform framework to carry out space-time modeling and prediction. According to the method, the complex dynamic characteristics of the traffic flow can be described more accurately, the accuracy and generalization ability of the prediction model are remarkably improved, and more reliable decision support is provided for intelligent traffic management.

The invention provides a dynamic resource isolation method and device, electronic equipment and a storage medium, and relates to the technical field of communication. A resource allocation strategy containing a private network slice minimum bandwidth reservation proportion and a public network user maximum bandwidth limit proportion can be generated based on the service type identification result and the service flow prediction data; and base station scheduling parameters and core network flow routing can be adjusted according to the strategy so as to realize public and private network user resource isolation through a dynamic bandwidth allocation mechanism and network slice mapping, and meanwhile, network state changes are evaluated regularly and a resource allocation strategy is adjusted based on an evaluation result. The problem that in the prior art, resource allocation cannot adapt to dynamic service requirements can be solved.

The invention discloses a coplanar waveguide feed-based T-shaped ultra-wideband transparent antenna and a design method thereof, and belongs to the technical field of ultra-wideband transparent antennae, the coplanar waveguide feed-based T-shaped ultra-wideband transparent antenna comprises a transparent dielectric substrate, and a coplanar waveguide feed structure, a radiation unit and a grounding plate structure are integrated on the same surface of the transparent dielectric substrate; the radiation unit is a T-shaped composite radiation patch; the grounding plate structure comprises two L-shaped windows, and the L-shaped windows are formed in the large-area grounding plane; and the two L-shaped windows are symmetrically distributed about the central longitudinal axis of the antenna and form partial projection overlapping with the T-shaped composite radiation patch. Through the collaborative design of the specific T-shaped composite radiation patch and the symmetrical L-shaped window, a plurality of resonant modes are effectively excited and deeply fused, so that the bandwidth limitation of the transparent antenna is overcome, and a key component is provided for a transparent integrated communication terminal; the whole structure is compact, the transparency is high, and stable and efficient ultra-wideband work can be achieved within the frequency band ranging from 4.7 GHz to 7.45 GHz.

A storage system includes at least one oversubscription-protected storage group and at least one non-protected storage group. Some or all of the primary path ports of the non-protected storage group are secondary path ports for the protected storage group. The secondary port paths are normally inactive for the protected storage group. When aggregate bandwidth on the primary port paths of the protected storage group reaches a threshold condition or is forecasted to reach the threshold condition, the secondary port paths are activated for the protected storage group. While the secondary port paths are activated for the protected storage group, both the protected storage group and the non-protected storage group are accessible via the shared ports. Access to the protected storage group and the non-protected storage group via the shared ports may be bandwidth-limited such that sharing in a predetermined ratio is ensured.

The invention discloses a graphics card online health assessment and scheduling method and device, electronic equipment and a storage medium, and relates to the technical field of computer hardware fault processing and automatic control. According to the method, health scores are calculated based on error event counting, average access delay, temperature, power consumption and access utilization rate of video memory particles, and the health score of each video memory particle is mapped into a corresponding health state grade; the video memory particles in the excellent state execute the current scheduling strategy and serve as priority target particles for task migration; starting an enhanced monitoring mode for the video memory particles in a good state, and increasing the data acquisition frequency; executing a preventive scheduling optimization strategy on the video memory particles in the warning state; and executing a scheduling strategy including task migration, bandwidth limitation, frequency adjustment and memory bank level loss on the video memory particles in the risk state. According to the method, the health state of the video memory is accurately quantified, differentiated scheduling is implemented based on the health state level, the system reliability is remarkably improved, and the downtime risk is reduced.

A kind of avionics network virtual link configuration method based on dynamic programming and top-down, detect IP fragmentation caused by MTU, network bandwidth limit and the jitter limit caused by multiple virtual link propagation, the bandwidth calculation problem of virtual link is modeled into the optimization problem of minimization;According to the limit condition, the initial parameters of virtual link that make the total bandwidth of network minimum are obtained, the message allocation method based on dynamic programming is used when the size of message is small, and the traversal type top-down message allocation method is used when the size of message is large, to obtain the corresponding virtual link and configuration parameters when each message flow is transmitted.The message allocation method with the target of improving bandwidth margin using dynamic programming idea and top-down structure respectively can significantly improve bandwidth margin to adapt to larger scale actual data, and has fast running speed.

The embodiment of the invention discloses a vehicle flashing control method, computer equipment and a computer storage medium. According to the embodiment of the invention, the data body of the flash file is not transmitted by using the communication service of a communication protocol, but the storage position information and the related control instruction of the flash file are transmitted by using the communication service, so that the vehicle control device is guided to autonomously acquire the file data from the specified high-speed storage position. Through the separated design of a control instruction and data transmission, an acquisition path of a flash file is sent to a vehicle control device in an instruction form, so that the vehicle control device autonomously pulls the file from a high-speed external storage medium or an internal domain controller cache, bandwidth limitation and storage pressure when a traditional diagnosis bus transmits a large file are thoroughly avoided, and the reliability of the diagnosis bus is improved. The flashing efficiency is greatly improved; and the dependence on hardware resources is reduced.

A method for monitoring an aircraft's onboard communication network, comprising, for a data stream transmitted or received by a network switch, a flow limiting function (to enforce a bandwidth limit) and a security function (202) comprising: obtaining measurements of at least one stream parameter; based on the measurements obtained, calculating a value of at least one bandwidth consumption parameter, contributing to the definition of a measured bandwidth consumption profile; comparing the measured profile with a predetermined profile by comparing the calculated value with a reference value; and, if at least one difference criterion is met, performing at least one network security action. This allows the detection of an unusual (although remaining below the bandwidth limit) bandwidth consumption profile that could constitute a malicious act. Figure to be published with the abbreviation: Fig. 2

This utility model discloses an 1188B communication module and communication system, relating to the field of communication technology. The 1188B communication module includes a protocol conversion chip and a connector. The protocol conversion chip is connected to the connector via a PCIe interface and an 1188B interface. The protocol conversion chip is used to: receive Transaction Layer (TLP) data packets from the connector via the PCIe interface; convert the TLP data packets into 1188B link layer data frames; and send the 1188B link layer data frames to the connector via the 1188B interface. Therefore, the 1188B communication module provided in this application avoids the conversion scheme using 1000 Mbps Ethernet as the conversion medium, achieving seamless conversion between the PCIe protocol and the 1188B protocol through the protocol conversion chip, thereby breaking through the 1Gbps bandwidth limitation and meeting the needs of high-speed data acquisition and real-time control.

The invention discloses a terahertz signal generation system and method based on a space radio-over-fiber technology. The terahertz signal generation system comprises an optical comb generation module, an optical carrier frequency selection and modulation module, a transmission module and a photoelectric conversion module which are arranged in sequence. The optical comb generation module is used for generating an optical frequency comb; the optical carrier frequency selection and modulation module is used for screening out at least two optical carriers from the optical frequency comb and carrying out radio frequency signal modulation on the optical carriers to obtain multiple paths of optical signals; according to the invention, generation and transmission of ultra-wideband terahertz signals are realized by using a space radio-over-fiber technology, the problems of bandwidth limitation of a traditional electronic technology and overlarge loss of the terahertz signals during long-distance transmission are solved, and spurious signals generated in an optical domain signal processing process are suppressed by using an optical injection locking technology. Reconfigurable generation of terahertz signals can be realized through combined regulation and control of local oscillator signals and double lasers, and generation and transmission of high-speed, stable and low-stray broadband terahertz communication signals are realized.

Computer-implemented techniques for controlling virtual machine (VM) porting activities based on dynamically-calculated virtual machine predicate values. Upon receiving a command to port a subject virtual machine from a source virtualization system environment to a target virtualization system environment (wherein the source virtualization system environment and the target virtualization system environment are different), one or more match expressions that describe time of day and resource predicates conditions, under which porting operations of the subject virtual machine are to be carried out are evaluated. Based on observance of the aforementioned time of day and resource predicates, various virtual machine porting operations are either carried out (e.g., when applicable match expressions and / or predicates evaluate to TRUE), or are temporarily suspended (e.g., when the applicable match expressions and / or predicates evaluate to FALSE). Multiple virtual machines can be ported concurrently while observing VM priorities and bandwidth throttling.

To provide a radio communication system, a radio communication method, a first radio communication device, a second radio communication device, and a computer program capable of smoothly performing radio communication without stopping the radio communication even in the radio communication for bridge-connecting standards different in throughput.SOLUTION: A first radio communication device and a second radio communication device for performing radio communication by using a second radio communication standard whose throughput is lower than that of a first radio communication standard used in the first radio communication device are connected so that radio communication can be performed. The second wireless communication device acquires, from the first wireless communication device, communication status information about a status of communication with the wireless communication terminal. On the basis of the acquired communication state information, transmittable rates of the first wireless communication device and the one or more wireless communication terminals are calculated. Based on the calculated transmittable ratio, the band limitation in the downlink direction is set, and the band limitation value in the uplink direction is notified to the first wireless communication device.SELECTED DRAWING: Figure 4

The invention discloses a bandwidth setting method and device, electronic equipment and a storage medium, which are applied to the technical field of networks, and the method comprises the following steps: obtaining a change event of a dynamic service quality strategy resource; determining a target container corresponding to the dynamic service quality strategy resource; and adjusting a network bandwidth limiting strategy of the target container based on the change event. According to the embodiment of the invention, dynamic adjustment of the bandwidth of the container can be realized, business execution in the container does not need to be interrupted, and the stability of system operation can be improved.

The application is suitable for the technical field of communication, and provides an electronic cigarette data transmission method, an electronic cigarette device and a storage medium. The method comprises the following steps: collecting substitute smoking operation data according to a preset period, wherein the substitute smoking operation data comprises a smoke amount per second and a continuous use state flag; using a preset compression rule to compress the substitute smoking operation data to a preset byte; encapsulating the compressed substitute smoking operation data, the electronic cigarette device identifier and the data collection timestamp into a fixed format data packet, wherein the length of the entire data packet is a preset size; and finally sending the encapsulated data packet to a data receiving device in a short connection mode through a narrowband Internet of Things communication module. Through the characteristics of the substitute smoking operation data of the electronic cigarette and the transmission limitation of the narrowband Internet of Things, a special data compression and encapsulation scheme is adopted, so that the technical problem of insufficient data transmission efficiency of the electronic cigarette device with ultra-low power consumption under the limitation of limited bandwidth is solved.

The invention discloses a processing method of playback services, a satellite voice access gateway and home network equipment. The method comprises the following steps: acquiring a radio access technology (RAT) type of an access terminal, the access terminal comprising a calling terminal initiating a call or a called terminal responding to the call; under the condition that the RAT type is a first RAT type, generating playback suppression information, the first RAT type including non-ground network access, and the playback suppression information being used for indicating suppression of playback type services; and sending the playback suppression information to the home network of the calling terminal and / or the home network of the called terminal. According to the method and the device, the technical problems that the call establishment time is too long due to extra message interaction in bandwidth limited scenes such as a satellite communication network, or sound quality codes of playback services cannot meet transmission requirements, so that playback contents cannot be normally played, and the like are solved.

The present application relates to the technical field of network transmission congestion, and particularly relates to a network data packet capturing and analyzing method and system for mobile terminals. The method divides discrete transmission batches based on historical interval characteristics, determines an observation reference rate by time window sampling combined with quantile statistics, and constructs an ideal reference transmission curve. The method determines a time domain lag barycenter parameter by analyzing the cumulative lag distribution in the time dimension, eliminates false congestion interference, and extracts a load congestion index. The method dynamically updates the reference delay baseline through the load congestion index to judge the congestion state and implement a hierarchical early warning mechanism. The present application is based on time domain barycenter analysis of lag distribution characteristics, distinguishes between head lags caused by protocol establishment overhead and real congestion lags caused by bandwidth limitations, significantly reduces false congestion false positive rates, realizes adaptive and accurate monitoring of network congestion states, and improves the accuracy of user experience evaluation.

According to the wind power master control PLC real-time debugging method and system based on remote monitoring provided by the embodiment of the invention, a remote client intelligently generates an initial contract request containing a QoS level by analyzing user interface data, so that on-demand data subscription is realized, and unnecessary data transmission is reduced from the source. And then, the edge data gateway negotiates with the contract based on the own resource state to ensure the feasibility and rationality of data transmission. Most importantly, the edge data gateway can sense network indexes (such as RTT and packet loss rate) in real time, and performs adaptive data packaging and efficient differential coding transmission on the QoS data buffer area based on an effective contract object. Finally, the remote client receives and reconstructs the optimized data, and the mechanism only transmits data variation, reduces data load, effectively deals with bandwidth limitation and network fluctuation, and ensures real-time performance and smooth display of key data.

The invention relates to the technical field of network transmission congestion, in particular to a mobile terminal-oriented network data packet capture analysis method and system. According to the method, discrete transmission batches are divided based on historical interval characteristics, an observation reference rate is determined through time sequence window sampling in combination with quantile statistics, and an ideal reference transmission curve is constructed; time-domain lag gravity center parameters are determined by combining time dimension analysis accumulated lag distribution, and pseudo congestion interference is eliminated to extract load congestion indexes; and dynamically updating a reference delay baseline through a load congestion index to judge a congestion state and carry out a grading early warning mechanism. According to the method, lag distribution characteristics are analyzed based on the time domain gravity center, head lag caused by protocol establishment overhead and real congestion lag caused by bandwidth limitation are distinguished, the false congestion false alarm rate is remarkably reduced, the network congestion state is adaptively and accurately monitored, and the accuracy of user experience evaluation is improved.

The embodiment of the invention discloses a bandwidth speed limiting method of a distributed system, a bandwidth speed limiting device of the distributed system, bandwidth speed limiting equipment of the distributed system, a computer readable storage medium and a computer program product containing instructions, which are used for limiting the bandwidth speed of the distributed system under the condition of reducing the risk of network congestion. The method provided by the embodiment of the invention comprises the following steps: acquiring traffic information of all nodes, determining that a first service of any node is in a to-be-limited condition for any node based on the traffic information of any node, and / or determining that the first service of at least one node is in a to-be-limited condition for multiple nodes based on the traffic information of the multiple nodes, the bandwidth speed limit value of the first service of the first target node is adjusted, the first target node is the node of which the first service is under the speed limit condition, and the bandwidth speed limit value is used for determining the bandwidth upper limit of the first service of the corresponding node.

Systems and methods for supporting target groups for congestion control in a private fabric in a high performance computing environment. An exemplary method can provide, at one or more microprocessors, a first subnet, the first subnet comprising a plurality of switches, a plurality of host channel adapters, and a plurality of end nodes, including a plurality of virtual machines. The method can define a target group on one of an inter-switch link or at a port of a switch of the plurality of switches, wherein the target group defines a bandwidth limit on the at least one of an inter-switch link between two switches of the plurality of switches or at a port of a switch of the plurality of switches. The method can provide a target group repository stored in a memory of the host channel adapter where the defined target group in the target group repository is recorded.

The application discloses a virtual machine vcpu thread special-purpose scheduler based on a linux kernel and KVM, and the main body is VMSCH, characterized in that: the VMSCH is a virtual machine vcpu scheduler, the VMSCH priority is between an RT scheduling strategy and a CFS scheduling strategy, the priority is 99, and the RT priority is adjusted from 1-99 to 1-98, the VMSCH only manages the scheduling of vcpu threads and does not manage other threads. In the application, the duty cycle of vcpu exclusive pcpu can be dynamically configured, and it is unnecessary to configure at booting, so that the flexibility of the scheme of isolating pcpu for vcpu use by using isolate is avoided, pcpu resource waste caused by bandwidth limitation and idle state of the RT scheduling strategy is avoided, and the application has CPU architecture independence, and after implementation, any CPU architecture, such as X86, ARM and Loongson, can be naturally supported, so that the application has extremely wide application range.

The application discloses an inter-satellite link load balancing method, system and device and a storage medium, relates to the field of satellite communication, and aims at the congestion problem of a user plane network of a core network. In the application, an SMF network element receives inter-satellite link state information from each UPF network element; under the limitation of inter-satellite link delay and bandwidth, a routing path from a source satellite node to a target satellite node is calculated according to the inter-satellite link state information; and the routing path decision is distributed to the UPF network element of the corresponding satellite node. The application can realize load balancing of the inter-satellite link, avoid the congestion of the user plane network of the satellite-borne core network, and improve the service quality of the satellite-borne core network.

The application provides a control system network performance test method based on field application conditions, comprising: determining the dimension of control system network performance influence evaluation; building a control system network architecture simulating field application; determining the quasi-state operation model of the control system under network performance changes from the two dimensions of network delay and bandwidth limitation; wherein the quasi-state operation model is used for evaluating the network performance of the control system. Thus, the influence of network performance on the running state of the control system can be evaluated based on the two dimensions of network delay and bandwidth limitation, and through test verification, data statistics and analysis, etc., the optimal solution of network delay and bandwidth limitation that can meet the safe operation of the control system is found, effective guidance and technical support for the field application of the control system are realized, and the safe and stable operation of the system is facilitated.

The invention discloses a control method for suppressing totem pole PFC AC side current high-frequency oscillation, and relates to the technical field of power electronics, and the technical key points are that the method comprises the steps: designing LC filter parameters, considering current ripples for an inductor L, and considering reactive power constraints for a capacitor Cdm; determining a PFC current loop proportion parameter stability boundary kpcboundary, and drawing a root locus curve; determining an integral parameter kic, drawing a kpc root locus change curve under different kic, and taking an optimal value; calculating voltage loop parameters kpv and kiv according to voltage loop bandwidth limitation; dSP sampling is modified into ZERO and PRD triggering, and PWM is loaded in the ZERO and PRD; introducing an improved voltage feedforward control method; according to the invention, by introducing an improved voltage feedforward control strategy, the operation stability and reliability of the converter in a complex power grid environment are improved.

The application discloses a method and a system for monitoring an onboard communication network of an aircraft. The method comprises, for a data flow sent or received by a switch of the network, performing a traffic policing function (to bring the data flow into compliance with a bandwidth limit) and performing a security function (202) comprising obtaining a measurement of at least one parameter of the traffic, calculating, from the obtained measurement, a value of at least one bandwidth consumption parameter, the calculated value participating in the definition of a measured bandwidth consumption curve, comparing the measured curve with a predefined curve by comparing the calculated value with a reference value, and performing at least one action for protecting the network in the event of a verification of at least one discrepancy criterion. This makes it possible to detect abnormal bandwidth consumption curves that can constitute malicious actions (despite the fact that they remain below the bandwidth limit).

The application discloses an intelligence node association and reorganization system and method based on multi-agent collaborative decision-making, and belongs to the technical field of intelligence data processing, and comprises the following steps: an introduction agent intelligent agent continuously collects original intelligence from multiple sources, initiates a preview request to surrounding reorganization unit intelligent agents, the reorganization unit intelligent agents analyze information gain expected scores of each intelligence after receiving the request, and reply optimally, and the introduction agent selects the reorganization unit intelligent agent with the highest score from the replies according to network bandwidth limitation to perform actual data transmission. The application is based on a multi-agent collaborative distributed intelligence adaptive collection and processing closed loop, effectively solves the core pain points of transmission waste and low processing efficiency caused by bandwidth limitation, resource conflict and untrusted data sources in the traditional mode, constructs an intelligent intelligence network, can continuously optimize the collection strategy and the collaboration object according to real-time feedback, and always maintains the state of maximum resource utilization and maximum intelligence value mining in a dynamic environment.