6892 results about "Station" patented technology

This disclosure provides systems and methods for provisioning resources in a wireless network. In some implementations, an apparatus obtains, from a first station (STA) on a first communication link associated with an access point (AP) multi-link device (MLD), a request for association all communication links of the AP MLD, and provisions either a single communication link or multiple communication links of the AP MLD for communications with the first STA based on at least one of a latency, a level of interference, or a traffic load associated with each of the communication links of the AP MLD. The apparatus generates a frame indicating whether the single communication link or the multiple communication links of the AP MLD are provisioned to the first STA for communications with the AP MLD, and outputs the frame for transmission to the first STA.

The invention provides an HPLC (High Performance Liquid Chromatography) station area cooperative communication method based on clock synchronization, which comprises the following steps: step 1, multi-dimensional data acquisition and broadcasting: each concentrator periodically acquires clock precision, stability and reliability data, and sends a beacon frame containing a timestamp and a health degree score through a power line carrier broadcasting channel; step 2, dynamically calculating the index distinction degree by using an entropy weight method, adaptively allocating weights, and electing an optimal main CCO in real time; step 3, dual-mode PID cooperative control: the main CCO adopts a dual-mode switching strategy of a dynamic PID algorithm and a chaotic fractional order PID algorithm; 4, monitoring a synchronization state in real time by constructing a clock check network, and optimizing a fault isolation strategy in combination with weighted scoring to realize that the state switching time of the master node and the slave node is less than or equal to 50ms; cooperative communication is realized on the basis of completing synchronization of the concentrators CCO in the whole network. Redundant message transmission is reduced through a dynamic parameter resynchronization mechanism, and the utilization rate of network resources is optimized.

The invention provides a wireless communication network method and system of a mobile first-aid station. The method comprises the following steps: monitoring and evaluating a surrounding environment in real time, selecting an optimal working frequency band, and adjusting a frequency band switching strategy to obtain a self-adaptive multi-frequency-band access mechanism; the bandwidth and the connection priority of the wireless communication network are dynamically adjusted, the task priority is evaluated, and a dynamic resource allocation strategy is generated; deploying a distributed cache and synchronization system, realizing balanced distribution and rapid positioning of data, and generating a distributed temporary data cache pool; establishing an intelligent routing algorithm of deep reinforcement learning, calculating an optimal transmission path from a source to a destination, and finally generating an intelligent routing planning scheme; a redundant path is preset on the path, and a redundant path planning scheme is generated according to a dynamic resource allocation strategy and an intelligent routing planning result. According to the technical scheme provided by the invention, the reliability and the response speed of the wireless communication network of the mobile first-aid station are improved.

The invention relates to the field of converter station equipment parameter analysis, and provides a converter station equipment parameter analysis method and system based on multi-parameter fusion monitoring, and the method comprises the following steps: collecting multi-parameter characteristic data of converter station equipment; performing streaming processing and abnormal mode identification on the multi-parameter characteristic data to obtain equipment abnormity early warning information of the converter station equipment; constructing a time-varying graph neural network model based on the multi-parameter feature data, obtaining a space-time dependency relationship among parameters through a causal reasoning method, and dynamically adjusting the feature weight of the time-varying graph neural network model in combination with a reinforcement learning algorithm to obtain a running state evaluation model; and inputting the real-time state feature sequence into the operation state evaluation model to obtain an equipment operation state evaluation result, and visually displaying the equipment operation state evaluation result and the abnormal early warning information to obtain a comprehensive operation state evaluation report of the converter station equipment. According to the invention, real-time monitoring and evaluation of the operation state of the converter station equipment are realized.

Provided is an operation method based on multiple access points (APs), applicable to a first AP device. The method includes: transmitting a first frame to establish a protected predetermined service period based on a multi-AP operation for a first station (STA) device, wherein the protected predetermined service period based on the multi-AP operation is a protected predetermined service period negotiated and established by the first AP device and at least one second AP device.

The embodiment of the invention provides a routing method and device based on satellite processing, and the method employs a time slice division mechanism, and constructs a dynamic network topology structure according to a satellite constellation operation period and a link building rule. And the gateway station uploads the corresponding relation data of the time slice and the network topology to the satellite node for storage in advance. And after the satellite node receives the data, based on the network topology corresponding to the current time slice, the shortest path algorithm is adopted to realize autonomous routing calculation, and a next hop forwarding node is determined. And ensuring that the data is transmitted to the target node along the optimal path through a dynamic routing recalculation mechanism of the relay node. According to the method, the defects of the traditional technology in the aspects of routing real-time performance, topology management, on-satellite processing and the like are effectively overcome, and the performance of a satellite communication network is remarkably improved.

Dynamic puncturing in a wireless local area network (WLAN) supporting 320 MHz bandwidths is disclosed. In one example, a method includes a first station (STA1) transmitting a null data packet announcement (NDPA) frame including an indicator of an orthogonal frequency division multiple access (OFDMA) subchannel puncturing over a wireless medium and subsequently transmitting a null data packet (NDP) having a U-SIG field specifying an OFDMA puncturing pattern. The NDPA may indicate that the subsequent NDP, which preferably occupies an 80 MHz channel, includes the OFDMA puncturing pattern in its U-SIG field. The method may further include transmitting a beamforming report poll (BFRP) soliciting measurement by the receiving station (STA2) on active resources, e.g., subchannels which have not been punctured. STA2 may transmit a beamforming report (BFR) in response to the BFRP, the BFR including measurements of active resources excluding subchannels inactive due to static OFDMA puncturing or dynamic OFDMA puncturing.

The invention provides a switching station control method and system of a subway station. The system comprises a subsystem control unit, a main control unit, a communication module and a data caching module, the subsystem control unit transmits an equipment on-off state, a fault signal and an environment parameter to the main control unit in a hybrid networking mode, and a first cooperative control instruction set is generated in combination with a linkage rule base; a target priority is distributed for the operation instruction to obtain a second cooperative control instruction set, and the communication module adopts a multi-channel parallel distribution mechanism for pushing; in the process of executing the switching station operation, the data caching module stores running state data, identifies a time sequence mode by using a machine learning model, pre-judges a switching station linkage scene and loads a control strategy; and the main control unit detects the response delay of the subsystem control unit and generates a third cooperative control instruction set according to the control strategy so as to optimize the switching station control time sequence. According to the invention, intelligent cooperative control of multiple electromechanical devices can be realized.

The invention relates to the technical field of sequence control, in particular to a sequence control test system based on the Internet of Things, which comprises a task decomposition module for analyzing equipment load, decomposing tasks according to equipment operation capability, acquiring task requirements and equipment parameters, judging operation conditions of equipment stations, refining task dependency relationships and performing task scheduling on the basis of a system task sequence; and associating the tasks with the equipment parameters to generate an equipment task sequence table. According to the method, efficient coordination of multiple devices under different loads is ensured by adopting a distributed coordination algorithm, task scheduling is more flexible and efficient by analyzing task dependency and state changes of the devices, optimizing the task execution sequence and arranging the execution time and stations of the devices, and the task scheduling efficiency is improved by judging synchronous execution conditions and obtaining time nodes. The synchronous execution sequence of the tasks is coordinated, repeated occupation or idling of equipment resources is avoided, and the stability and task processing capacity of a sequence control system are improved.

The invention relates to an implementation method and device for an EtherCAT master station system based on a non-operating system, and the method comprises the steps: achieving the adaptation of an SOEM protocol stack to a hardware abstraction layer of an EtherCAT master station through the byte order processing based on a bit mask and a staged shift strategy and the EtherCAT frame receiving and transmitting control based on annular buffer area index management; on the basis of non-real-time task priority scheduling processing of a hardware timer, main circulation driven by a single-thread event and overtime monitoring of a blocking communication synchronization mechanism in combination with the timer, adaptation of an SOEM protocol stack to an EtherCAT master station operating system abstraction layer is achieved; through network scanning and communication parameter configuration, a memory management mechanism based on CoE standard mapping and a periodic position mode of a slave station, adaptation of an EtherCAT master station application layer is realized. According to the invention, through optimization and adaptation of the SOEM protocol stack, operation-system-free and microsecond-level communication jitter of the EtherCAT master station system is realized.

The invention proposes to generate a new MAC address for a non-AP station while being associated with an AP station, for use when associating again with the same AP station. For privacy reason, the same new MAC address is generated locally at both the non-AP station and the AP station using a shared function. This is done in a synchronized manned, preferably at the end of the association, e.g. when disassociating. The non-AP station disassociates with the AP station, and at any time in the future, it may associate again with the same AP station using this new MAC address. The AP station is therefore able to recognize the non-AP station, while outside observers only see a new MAC address and thus see a new non-AP station associating with the AP station. User privacy is therefore reinforced over time as the non-AP station associates multiple times to the same AP.

The invention discloses a wireless public network communication data transmission system based on multiple central stations, which relates to the technical field of data transmission and comprises a load sensing and balancing module, a path reconstruction module, a self-adaptive coding modulation module and a safety tunnel management module. The load sensing module realizes load balancing and stable transmission by monitoring indexes of a central station in real time and performing dynamic migration connection; the path reconstruction module adjusts and optimizes path parameters by using federal learning, dynamically adjusts a transmission path and optimizes path quality; the adaptive coding modulation module dynamically adjusts a modulation scheme according to channel conditions, generates a pre-coding matrix in combination with environment information, and improves the transmission efficiency; the security tunnel module adopts a plurality of encryption technologies and dynamic port hopping mechanisms to ensure the security of data transmission; according to the invention, the load balancing capability, the transmission efficiency and the security of the system are effectively improved, and the method is suitable for a complex and changeable wireless public network environment.

The invention belongs to the technical field of power resource optimization, and particularly relates to a power supply station service architecture optimization method based on digital power grid construction achievements, which comprises the following steps: investigating power supply station service requirements, constructing a power supply station service architecture, and determining a power supply station application architecture; an intelligent Internet of Things terminal operation system based on an electric power gap base and a platformization solution are introduced into the application architecture, and a platformization and perception fused service operation system is constructed; core technologies such as an AI large model, a high-perception terminal, a security authentication mechanism and a 5G slicing network are introduced into asset management, production management, resource management and technical management, and an integrated service execution system with intelligent perception, efficient cooperation, security, credibility and standardized operation is constructed. According to the invention, the problems of scattered architecture, slow response, weak cooperative capability and the like in a traditional power grid system are solved, and reliable support and a technical path are provided for efficient, safe and intelligent development of a power grid.

A communication method for sensing by proxy (SBP), includes: receiving, by an access point (AP), a first SBP request frame from an SBP requesting station, wherein the first SBP request frame comprises a requirement for requesting the AP to initiate a first sensing measurement as a proxy AP; and sending, by the AP, a first message frame to the SBP requesting station, wherein the first message frame carries a sensing measurement setup identifier.

The invention relates to the technical field of hydropower engineering, and discloses a single-core self-healing type looped network networking method and system, and the method comprises the steps: dividing a whole network into a plurality of sub looped networks; each sub-ring network operates independently; the light switch in each sub-ring network adopts an A / B end connection mode; reversely connecting the B end of the last measuring point to the A end of the initial measuring station by using an optical fiber to form a closed physical structure; configuring a protocol on the switch, and controlling a data flow path through the protocol; different sub-ring networks are connected through RJ45 ports, and a CAT5E shielded twisted pair or an Ethernet interface is used; when a certain node or link fails, the protocol automatically triggers a switching mechanism; the master station optical transceiver monitors the states of all nodes in real time and displays fault points through a network management interface. The system comprises a sub-ring network module, a control data flow module and a fault point display module. The problems that a traditional networking method of hydropower engineering is poor in reliability, and self-healing cannot be achieved after an intermediate node is disconnected are successfully solved.

The invention relates to the technical field of power distribution station supervision, in particular to an intelligent auxiliary and artificial intelligence visual gateway control method and system for a station building, which monitors network state parameters in real time, calculates a network quality score and dynamically selects an optimal transmission path based on a reinforcement learning algorithm. Comprising a high bandwidth mode, a low delay mode and a disaster recovery backup mode, stage processing and dynamic compression are performed on transmission data according to data types and network quality scores, link switching and a local caching mechanism are automatically triggered when a network is abnormal, and finally, multi-gateway load balancing and visual monitoring are realized through a software defined network architecture. The problem of transmission delay or interruption caused by the fact that a static data transmission framework cannot adapt to network state changes in the prior art is effectively solved, and the reliability and the real-time performance of data transmission are remarkably improved through dynamic path optimization, intelligent hierarchical transmission and a fault self-healing mechanism.

The invention relates to the technical field of data communication, and discloses a rail transit station-level agent implementation method and system. The method comprises the following steps: constructing a professional body base through an ARM processor, designing a LiteIP security communication bus based on an FPGA, constructing a multi-core CPU cluster to construct an intelligent body center, establishing a real-time and entity database to form a data basis, fusing federated learning and a neural network to generate a decision, and executing edge calculation to realize station-level autonomous control. According to the invention, millisecond-level data exchange and intelligent cooperative control in the station-level system are realized, and the response speed and the processing efficiency of the system in an emergency are remarkably improved.

Methods, systems, and devices for spectral sharing wireless systems, wherein multiple user devices share time and frequency resources for uplink and / or downlink transmissions, are described. One example method includes transmitting transmission symbols from the network station to at least one user device by processing through a first precoder and a pre-compensation stage, wherein the pre-compensation stage is selected to have the transmission symbols receivable at the at least one user device to appear as if the transmission symbols are processed by a second precoder different from the first precoder.

The present invention extends to methods, systems, and computer program products for assessing cell base station performance. In one aspect, an intelligent quantitative performance index is used for assessing cell base station performance. Assessing cellular base station performance can include identifying underperforming cellular base stations and predicting cellular base station performance. Artificial Intelligence (AI) can be utilized to identify performance similarities among geographically segregated cellular base stations. AI can be used to derive dynamic scores adapting to different cellular traffic patterns and using smart thresholds. AI models can consider time of a metric degradation for impacting scores / indexes. Aspects can be used to help network operations teams maintain cellular networks and provide upper management a quantitative view of cellular network performance.

A method and a device for performing a sensing procedure in a wireless LAN system are disclosed. The method by which a first station (STA) performs a sensing procedure in a wireless LAN system comprises the steps of: transmitting, to a second STA, a sensing setup request frame including at least one sensing measurement parameter; and transmitting, to the second STA, a sensing setup response frame including a state code related to the at least one sensing measurement parameter, wherein, on the basis that the state code indicates that the first STA presents a sensing measurement parameter preferred by the first STA instead of the at least one sensing measurement parameter, the sensing setup response frame can include the preferred sensing measurement parameter.

The invention discloses a power line carrier communication protocol data link layer simulation method, which comprises the following steps of: constructing a physical layer interface simulation module, simulating power line carrier or wireless air interface transmission through TCP socket communication, and creating a high-priority task process to process time slot-level time sequence synchronization for triggering a physical layer transceiving action at a specified time slot; configuring a time sequence synchronization control mechanism, obtaining a timestamp carried by a beacon frame sent by a concentrator, calling a clock synchronization function to align a site local clock with the timestamp when receiving the head of the beacon frame, adding delay compensation before sending data, and delaying and starting a physical layer receiving action to offset IP network transmission delay when receiving the data; a data frame processing flow is realized, a header callback function is controlled through a registration frame to respond to a physical layer state change, TCP message data is cached by using an annular queue, and a physical layer interface simulation module analyzes a message, distributes a memory and processes a load at a specified time slot after time sequence synchronization.

A method is described for Wi-Fi sensing. The method is carried out by a networking device configured to operate as a station (STA) and includes at least one processor configured to execute instructions. The STA is associated with an original access point (AP) of an original basic service set (BSS) to establish an original association between the STA and the original AP. The STA and the original AP have an original communication link and an original sensing link established therebetween, the original communication link being established for data transmissions and the original sensing link being established for sensing transmissions. A transition management request identifying a preferred communication link between the STA and a preferred AP of a preferred BSS different than the original communication link with the original AP is received. Further, transmission of a transition preference indicating a preference to preserve the original sensing link is caused.

The invention discloses an automatic protocol matching system for intelligent gateway sensor equipment of a power distribution station house. The automatic protocol matching system comprises a protocol feature deep analysis unit, a graph convolutional neural network topology construction unit, an equipment protocol suitability evaluation unit, a real-time data transmission monitoring unit, an abnormal protocol correction unit and a protocol matching result output unit. The system analyzes sensor protocol characteristics, combines power station house sensor deployment and transmission path construction graph models, evaluates protocol suitability, monitors transmission data, corrects abnormal protocols, and finally outputs a matching scheme. The graph convolutional neural network and the power station room data transmission detection model are utilized to realize automatic protocol matching, improve the fit degree of adaptation and an actual scene, form an exception handling closed loop, reduce interaction failures, improve the data transmission efficiency and stability of the power distribution station room, and meet the requirement of intelligent reconstruction.

A STA in a STA MLD sends an information frame on a link corresponding to the station, and the information frame is used to indicate a STA in an awake state in the STA MLD. An AP MLD receives the information frame, and sends a downlink message frame on a one or more links corresponding to a part of or all of STAs in the awake state in the STA MLD.

The invention discloses a multi-zone-area interconnection model prediction control system and method based on side-end interoperation, relates to the technical field of power distribution automation, and comprises the steps of designing an interconnection system, configuring equipment to realize system architecture construction, optimizing a communication architecture, realizing real-time information interaction, and performing collaborative optimization based on model control prediction. According to the method, by adopting a model predictive control (MPC) strategy, energy dynamic distribution and load balancing between transformer areas are achieved, and the power quality problem caused by load fluctuation and distributed energy access can be effectively solved; the optimized communication architecture enables the real-time information interaction to be more efficient, and the cooperative control capability among the transformer areas is improved; through the flexible direct current interconnection technology, the problems of difficulty in capacity increase and point distribution and voltage quality difference of a traditional power distribution network are solved, and the stability and the safety of the power distribution network are improved. And meanwhile, the flexibility of cooperative operation of multiple transformer areas is improved, and the self-recovery capability of the system under the fault condition is enhanced.

This disclosure provides methods, components, devices and systems for coordinated time division multiple access (C-TDMA) in Wi-Fi networks for partial bandwidth transmission opportunity (TXOP) sharing. Some aspects more specifically relate to coordinating TXOP sharing in time and frequency. In some examples, a first access point (AP) obtains a TXOP associated with a bandwidth, allocates a duration of the TXOP to a second AP, and selectively communicates with one or more stations (STAs) associated with the first AP via a first portion of the bandwidth within the duration of the TXOP. In other words, the first AP may selectively communicate with one or more STAs associated with the first AP within the duration of the TXOP that the first AP shared with the second AP. Various disclosed protocols and mechanisms further relate to using resources that would otherwise be unutilized within a framework of coordinated medium access.

The invention provides an LSTM (Long Short Term Memory)-based intelligent fusion terminal station transformer data working condition dividing filling method. The method comprises the steps of data acquisition and working condition division: carrying out working condition refining and pile dividing on station area data uploaded by an intelligent fusion terminal according to a photovoltaic equipment operation state OpSt; data preprocessing: carrying out abnormal value detection, missing value preliminary filling, filtering denoising and normalization processing on the data after working condition division; sub-working-condition model training: aiming at each type of working conditions, respectively constructing and adopting the preprocessed data to train a corresponding LSTM data filling model; and missing value classification and filling: calculating the working condition category of to-be-filled data according to the similarity, calling the trained LSTM data filling model under the corresponding working condition, and performing prediction filling on the missing value. The method can solve the problems of high dimension, non-stationarity and complex missing modes in the monitoring data of the photovoltaic transformer area.

A communication method is performed by a non-Access Point Station Multi-Link Device (non-AP STA MLD). The method includes: determining a first message frame, wherein the first message frame includes identification information for indicating an operation mode to be maintained, and the identification information corresponds to link information for identifying a link to which the operation mode is applicable; and sending the first message frame.

The invention relates to an optimization configuration method, equipment and medium for a network-following construction type series-parallel system considering uncertainty, and the method comprises the steps: constructing a converter optimization configuration model by taking the minimum number of reconstruction times as an optimization target and taking the robust stability of the series-parallel system as a constraint condition; the optimized configuration process of the series-parallel system comprises the following steps: S1, segmenting the current series-parallel system into equivalent network following / network constructing subsystems, respectively calculating a generalized short-circuit ratio, determining a critical value of small interference stability of a corresponding nominal system, and solving a generalized short-circuit ratio and a robust stability margin of critical robustness of a subsynchronous frequency band based on a small gain theorem; s2, judging whether constraint conditions are met or not, if yes, ending the current optimization process, and otherwise, turning to S3; and S3, identifying the weakest feed-in point in the current series-parallel system by adopting a participation factor method, transforming the station corresponding to the weakest feed-in point into network construction type control, and turning to S1. Compared with the prior art, the input cost in the system transformation process is reduced on the basis of ensuring the robust stability of the system.

The invention relates to a large language model Agent proxy method for satellite communication operation and control, and belongs to the field of operation and maintenance control and network management of a satellite communication system. The method comprises the following steps: constructing an Agent, wherein the Agent comprises a personalized long-term memory component, a graph retrieval component, a workflow planning component and an intention correction component; adding the constructed Agent for the large language model in a plug-in form; after the big language model reads user input, firstly, the intention correction component is used for correcting wrong intentions of a user to obtain corrected intention input, and then enhanced retrieval data is obtained through the personalized long-term memory component and the graph retrieval component; and finally, transmitting the corrected intention input and enhanced retrieval data to a workflow planning component to obtain operation and control parameters issued to a satellite, a terminal or an earth station. According to the invention, the problem that the intelligent degree is low due to the fact that operation and maintenance are mainly performed by manpower in the operation and maintenance management and control and network management fields in the satellite communication field at present can be solved.