859 results about "Communication link" patented technology

In various examples, methods and systems are provided for sampling and transmitting the most useful information from a radar signal representing a scene while staying within the computational and storage confines of a standard automotive radar sensor and the bandwidth constraints of a standard communication link between a radar sensor and processing unit. Disclosed approaches may select a patch of frequency bins that correspond to radar signals based at least on proximities of the frequency bins to one or more frequency bins corresponding to at least one peak and / or detection point in the radar signals. Data representing samples corresponding to the patch of frequency bins may be transmitted to the processing unit and applied to one or more machine learning models in order to accurately classify, identify, and / or track objects.

The present disclosure provides techniques for APs to evaluate status updates received from STAs for adaptive AID management. An AP establishes a wireless communications link with a station, generates a list of N AIDs, each of the N AIDs to be used in a corresponding epoch of N epochs associated with an EDP group, transmits to the station in a protected wireless frame, information indicating the list of N AIDs for the station, receives from the station a response frame to the protected wireless frame, where the response frame includes a status code indicating whether the station successfully stored at least a portion of the list of N AIDs, and maintains the wireless communications link with the station based at least in part on the timing information for randomized MAC address rotation for the EDP group, and including using each AID in the list of N AIDs during corresponding epochs.

Systems and methods for loop detecting and remediating in a firmware framework are described. In an illustrative, non-limiting embodiment, an Information Handling System (IHS) may include a controller that instantiates an orchestrator, and multiple devices coupled to the controller, wherein each device instantiates a node. The IHS may also include executable instructions to identify a plurality of communication links between the nodes, determine that at least a subset of the communication links causes a loop to be formed, and communicate with one of the nodes to block one of the communication links with an adjacent node to the one node.

This invention relates to a low-power docking station and its control method. It includes a USB-C interface, a power interface, a sleep power supply module, a system power supply module, a protocol control module, a docking station module, a switch module, a switching module, a microcontroller, and a scanning module. The power interface connects to the voltage input terminal of the sleep power supply module and is connected to the voltage input terminal of the system power supply module via the switch module. The system power supply module connects to the power supply terminals of the docking station module and the protocol control module. The switching module connects to the communication terminals of the USB-C interface, the protocol control module, the microcontroller, and the scanning module. The microcontroller detects the device connection status of the USB-C interface and controls the operating status of the switching module, the switch module, and the scanning module based on the detection results. This allows switching the communication link connection of the USB-C interface, connecting or disconnecting the power input of the system power supply module, and controlling the scanning module to operate when no device is connected. This invention features lower standby power consumption, better compatibility, and convenient operation.

The application discloses an intelligent networked traffic flow cooperative control method for coping with communication network attacks, and relates to the technical field of intelligent networked vehicle cooperative control in a vehicle networking environment.The method collects running state data of a target vehicle and multiple preceding vehicles, communication link state information and vehicle-mounted sensing data, constructs an information interaction topology between the vehicle and the preceding vehicles, extracts indicators such as communication delay, packet loss rate and routing features to establish a comprehensive network attack risk model, and when the risk exceeds a threshold value, cross-checking is performed in combination with real environment benchmark data provided by a roadside unit, trusted state quantities are extracted, untrusted vehicles are isolated and a cooperative topology weight is reconstructed, vehicle longitudinal control instructions are further generated in combination with a dynamic trusted expected safety vehicle distance, and the influence of network attacks on vehicle car following control performance is suppressed, so that the safety, stability and robustness of intelligent networked traffic flow operation in a complex communication environment are improved.

This invention discloses a method and system for monitoring human settlements using unmanned aerial vehicles (UAVs), relating to the field of human settlements monitoring. The method includes setting up a monitoring module mounted on a UAV, establishing a real-time communication link between the module and the flight control system, enabling the UAV to fly over human settlements, and during flight, the monitoring module collects parameters of the human settlements. Based on the flight control data, the collected parameters of the monitoring module are dynamically corrected to generate a calibrated data set. The calibrated data is then input into a scenario-based analytical model. This invention utilizes a real-time correction mechanism with deep coupling between flight control and sensing to dynamically correlate UAV attitude parameters with monitoring data, thereby reducing the data error rate and eliminating the need for post-correction. This is particularly beneficial in complex terrains such as mountainous blind areas and urban streets, improving the accuracy of pollutant concentration monitoring and helping to solve the problem of data distortion caused by dynamic interference.

The application belongs to the technical field of marine environment monitoring and early warning, and specifically relates to a multi-channel internal wave flow early warning system and an early warning measurement method, which comprises the following steps: a buoy body is fixedly arranged through a fixed anchor, and a marine profile comprehensive detection module synchronously collects multi-dimensional profile data such as flow velocity, temperature and salinity. A main control unit is embedded with a mixed driving early warning model, a phase velocity of an internal wave is solved based on a physical model, a nonlinear correction is performed through a machine learning residual correction module, a high-precision internal wave phase velocity is obtained, and then early warning time, shear flow and displacement amplitude are calculated and an alarm level is determined. Alarm information is redundantly sent to a shore station receiving system through a ground mobile communication link and a satellite communication link of a multi-channel communication module, and the shore station receiving system regularly updates the machine learning model by taking measured data as incremental samples. The application realizes high-precision and low-delay early warning of internal wave flow, has high communication reliability, and is suitable for marine engineering, underwater vehicles and safety guarantee of offshore operations.

The application discloses a high-rotation flying body flight parameter multi-field synchronous measurement and fusion method and system, the method utilizes a meteorological balloon to detect atmospheric parameters such as air pressure, temperature, humidity and wind direction and wind speed under current atmospheric conditions, arranges an unmanned aerial vehicle array networking as a relay node of a communication link, forms a data transmission link of a measuring device and a ground computing center, and performs positioning and monitoring on a flying body landing point. Under a unified space-time reference, target field distributed measurement and in-situ measurement data are subjected to "real-time + after-the-fact" information fusion, and the estimation precision of the whole trajectory flight parameters of the high-rotation flying body is improved. The method overcomes the limitations of conventional target field testing devices and testing means, and has the advantages of high time resolution, high spatial resolution, high signal signal-to-noise ratio, high information availability and high system integration.

The present application relates to the technical field of vehicle diagnosis security, and particularly relates to a vehicle diagnosis security firewall strategy, a system and a storage medium.The vehicle diagnosis security firewall strategy comprises: an embedded firewall module integrated in a vehicle self-diagnosis system, which establishes a communication link with a vehicle ECU and is used for performing access detection of a diagnosis device, permission level verification and operation behavior monitoring; a diagnosis function grading module which divides diagnosis functions into N permission levels according to the safety risk level of diagnosis operation, and each level corresponds to a specific operation range and verification standard; a verification and control module which is used for receiving an operation request of the diagnosis device, extracting the function level corresponding to the request and comparing with the preset verification standard, and opening the operation permission of the corresponding level after verification.The present application realizes accurate permission verification and whole-process dynamic security control of diagnosis operation, and solves the problem that different diagnosis devices and different operation functions cannot be finely controlled.

This invention belongs to the field of communication technology and discloses a voice communication system based on deep ultraviolet light. The system includes: a voice communication terminal, a transmitting information processing module, an electro-optical conversion module, a transmitting optical system, a receiving optical system, a photoelectric conversion module, and a receiving information processing module. Compared with traditional radio frequency communication, ultraviolet light has excellent anti-interference and anti-interception capabilities; compared with point-to-point communication in the deep infrared band, ultraviolet light has non-line-of-sight characteristics, enabling communication even in jungle warfare. This invention uniquely employs FMCW (Frequency Modulated Continuous Wave) modulation. FMCW encodes bit information as a continuous increase or decrease in frequency. The receiving end obtains the difference frequency signal through mixing, which can be demodulated using matched filtering or Fourier transform, significantly improving processing gain and noise immunity. Even under weak scattered light conditions, signals can be reliably extracted from strong backgrounds, greatly improving communication link margin.

The application provides a satellite communication power adaptive regulation method, system and device, which divides the space where satellite communication belongs into multiple space grid areas according to a preset space division scale; acquires satellite sensing data, space weather data and near-earth weather data in each space grid area to determine communication link loss evaluation data corresponding to each space grid area; generates space interference summary information according to the loss evaluation data corresponding to each space grid area and location data thereof; and adjusts the transmission power of satellite communication in each space grid area according to the space interference summary information. The method and system of the application collect weather data in the space area and the near-earth area thereof to determine loss evaluation data, and realize dynamic adaptive adjustment of satellite transmission power in each space grid area based on the loss evaluation data, thereby improving the reliability of satellite communication in a complex space environment.

The application discloses a kind of railway signal system security computing protection technology and system based on trusted computing.The application takes hardware trusted module as trust root, constructs the end-to-end trusted verification chain covering operation and maintenance terminal, communication link and destination device;Through the trusted management platform of center, the trust measurement and white list management of operation and maintenance tool are realized;Deeply integrate railway "window time" and standard operation process, construct device dynamic trusted benchmark model, and generate operation and maintenance personnel behavior trusted model based on historical behavior data;Deploy lightweight trusted agent to monitor operation and maintenance behavior in real time, and implement hierarchical response and authority control to behaviors deviating from the two models.The application realizes dynamic trusted protection in the whole operation and maintenance process, effectively improves the active defense capability against internal and external threats, balances safety strength and operation and maintenance efficiency, and provides business-aware security protection for railway signal system and key infrastructure.

This invention discloses a vehicle traffic data processing method, apparatus, device, medium, and product. The method includes, upon receiving vehicle traffic data sent by a local computing power module, transmitting the vehicle traffic data to a corresponding target receiving end via the core network; and upon receiving target data from the target receiving end via the core network, forwarding the target data to the local computing power module. By setting up a virtual terminal at the base station that has completed registration and access with the core network, it eliminates the need for additional external communication modules deployed on the roadside (RSU). Relying on the standardized communication link between the virtual terminal and the core network, efficient data transmission between the local computing power module and the target receiving end is achieved. Vehicle traffic data sent by the core network can directly reach the local computing power module, reducing intermediate forwarding links and meeting the needs of high-speed data interaction in large-scale vehicle-to-everything (V2X) networks.

The present application belongs to the technical field of electric power construction, and particularly relates to a power transmission and distribution construction monitoring method and system based on air-ground communication. The present application obtains an initial image sequence of a construction site through image acquisition equipment deployed in cooperation with the air and the ground, first performs frequency domain and spatial domain joint adaptive denoising on the image, and then identifies the construction process node in real time; the feature anchor points of the intra-frame static ground features are extracted, rigid alignment is performed through feature anchor point matching, and a standardized image sequence that is spatially aligned throughout the construction period is generated; a monitoring target area that matches the process node is demarcated, the gray scale gradient and edge texture feature vectors in the area are extracted, and are transmitted to the management and control end through an air-ground communication link, and are compared with the standardized construction feature benchmark corresponding to the process, to complete accurate judgment of safe operation. The present application solves the pain points of construction scene image noise and spatial misplacement, and greatly improves the monitoring recognition accuracy and management and control reliability.

This application discloses a control method, apparatus, and parallel system for a parallel system, belonging to the field of photovoltaic-storage systems. The control method for the parallel system includes: in the event of a communication link failure in the parallel system, determining target adjustment parameters for each disconnected subsystem based on a first total power generation capacity corresponding to the equipment connected to the disconnected subsystem and a second total power generation capacity of the parallel system; and controlling the operation of each subsystem based on the target adjustment parameters. The control method of this application enables each disconnected subsystem to continuously perform local power scheduling within permissible power limits, maintaining the normal operation of the parallel system to meet power demand, reducing the probability of shutdown, reducing the curtailment rate, and effectively improving the utilization rate of photovoltaic-storage equipment.

Systems, methods, and software for operating an unmanned aerial vehicle (UAV). A method includes capturing a video stream using one or more camera sensors of the UAV. The method includes transmitting data representative of the video stream to a ground station communicably coupled to the UAV. The method includes determining one or more performance characteristics of a communications link between the UAV and the ground station. The method includes adjusting a resolution of the video stream according to the one or more performance characteristics of the communication link. Embodiments of the present technology provide continuity of video quality for viewing by UAV users at ground stations responsive to variations in video data transmission capacity during flight operations with minimal, or no, detrimental impact on user experience.

A communication apparatus is one of a plurality of communication apparatuses including at least a transmission device and a reception device, and includes a determination unit that makes a determination regarding recovery control of a communication link between the transmission device and the reception device based on information on a change in a geographical relative position between the transmission device or the reception device and a third object. The information on the change in the geographical relative position is information acquired by sensing performed by the transmission device, the reception device, another communication apparatus different from the transmission device and the reception device, or the third object.

A method, system, node and device are disclosed. A collector device configured to communicate with a vehicle system, a health node and at least one sensor is described. The collector device includes a communication interface configured to receive at least one measurement from the at least one sensor; and transmit battery data using at least one of a first communication link and a second communication link. The collector device further includes processing circuitry configured to determine the battery data based at least in part on the received at least one measurement; and determine at least one of the first communication link and the second communication link for transmitting the battery data to the health node. The at least one of the first and second communication links is determined based at least in part on a usability of the second communication link to transmit the battery data.

This invention discloses an asymptotic stability control method for urban expressway convoys based on a distance-information adaptive criterion. Belonging to the field of intelligent convoy control technology, the method includes: collecting the relative distance and speed between the vehicle and the preceding vehicle, as well as the motion state information of multiple preceding vehicles; monitoring the communication link in real time and calculating the signal quality factor of each preceding vehicle; constructing a dual adaptive coupled car-following model, which adjusts the vehicle's acceleration through both distance sensitivity coefficients and information sensitivity coefficients; deriving the asymptotic stability criterion for the convoy in equilibrium state based on the dual adaptive coupled car-following model and calculating stability indices in real time; and executing a hierarchical closed-loop control strategy based on the stability indices. This invention can simultaneously utilize distance-based sensitivity adjustment to ensure short-range safety and dynamically adjust the coordination weights according to signal quality, ensuring the asymptotic stability of the convoy in high-speed flow and complex communication environments.

The application provides a GNSS / inter-satellite link distributed cooperative real-time orbit determination method and device for a mega constellation, first, each satellite in a cluster performs preliminary orbit determination based on local GNSS observation data and IMU data to obtain preliminary determination results of each satellite in the cluster; then, a cluster head satellite collects the preliminary determination results to determine relative orbit parameters in the cluster; then, a backbone node collects the relative orbit parameters to determine a regional absolute orbit reference; a global anchor satellite determines unified constellation orbit parameters; finally, according to the regional absolute orbit reference and the unified constellation orbit parameters, orbit determination results of each satellite are determined. Through a three-level hierarchical cooperative architecture, the application disperses data processing and determination tasks to different level nodes, avoids data processing bottlenecks of a central node and communication link congestion problems in centralized technology, reduces complex interaction between nodes and inter-satellite link resource occupation in a thousand-star level scale in traditional distributed technology, and shortens iteration convergence time.

This application discloses a software instance communication method and electronic device, relating to the field of computer technology. The method, in response to detecting a first message receiving queue created by a second instance in shared memory, creates a corresponding second message receiving queue in shared memory, sends a handshake request message to the second instance through the first message receiving queue, and receives a handshake confirmation message from the second instance through the second message receiving queue, thereby completing the handshake connection between the first and second instances and establishing a communication link between them. Since multiple instances of a software service communicate through message receiving queues created in shared memory, traditional communication protocols are not required, and the system does not enter kernel mode. Therefore, the communication efficiency between multiple instances of a software service can be effectively improved without affecting system performance.

This invention belongs to the field of electronic digital data processing technology, specifically relating to a low-altitude communication data anomaly detection system and method based on edge intelligence. The system parses protocol fields from the raw bitstream of the low-altitude communication link layer, extracts type identifiers and payload lengths to construct a protocol state machine transition matrix, and utilizes a Long Short-Term Memory (LSTM) network to extract state transition probability sequence features. Geographically adjacent edge nodes are set as micro-federated learning groups. Each node, after training using local features, only uploads network gating weight parameters to its neighboring nodes for weighted aggregation to update its local model. An alarm is triggered when the real-time state transition probability sequence deviates from the normal transition matrix and exceeds a preset topology threshold. This invention can identify protocol state machine logic errors and transition anomalies, reducing the amount of communication data required for collaborative model updates between edge nodes.

This invention relates to the field of unmanned aerial vehicle (UAV) control and communication technology, and discloses a multi-mode switching system for UAVs, including an airborne terminal, a ground control terminal, and a cloud-based dispatch center. The airborne terminal, ground control terminal, and cloud-based dispatch center interact via a 6G-WiFi 7 hybrid communication link. The airborne terminal integrates a flight control unit, an ARIS-NOMA fusion communication unit, a multimodal perception unit, and an energy management unit. The cloud-based dispatch center integrates an optimization-driven hierarchical deep reinforcement learning decision engine, achieving integrated coordinated switching of flight attitude, communication mode, and perception mode. This system offers advantages such as integrated coordinated switching, improved adaptability of UAVs in complex environments, and enhanced swarm collaboration capabilities, solving the problems of existing UAV multi-mode switching systems, including single-dimensional switching, weak anti-interference capabilities, high energy consumption, and poor swarm collaboration.

The application relates to a method and system for recognizing continuous gesture behavior by using wireless radio frequency signals, which comprises: arranging a transmitting device and at least two receiving devices, each device is arranged with at least two antennas, and there is no obstruction between the devices; a gesture to be recognized is formed on a plane constituted by the transmitting device and the receiving devices, and any device needs to be worn; the disturbance of the wireless radio frequency signals caused by hand movement is used to perceive and recognize different air gestures by measuring the change of the channel state information on the communication link. The application can be compatible with the existing wireless communication devices, and no additional special sensing device or specific sensing signal needs to be installed. The application can effectively cope with the continuous gesture action with a transition section not fixed, so that the recognition of various single or continuous gesture behaviors is more natural. The application can be applied in the fields of wireless communication and sensorless perception.

This invention discloses a method and apparatus for stable control of UAV swarm formation based on multidimensional transitions, relating to the field of UAV cooperative formation technology. The method includes: upon entering an intelligent communication resilience assurance decision mode, generating action strategies and action values ​​based on the CHZ-search algorithm and current electromagnetic environment state parameters to obtain the optimal frequency hopping basic strategy; utilizing the SD-DDV network and an improved IDEB-AS algorithm to obtain the final double-transition frequency hopping pattern; establishing a multidimensional dynamic spectrum transition communication link; acquiring UAV state information for correction and compensation; and using a formation control law to achieve real-time state estimation and continuous stable control of the UAV formation. This invention can significantly establish a resilient communication link, compensate for communication delays, and perform formation control even when channel quality deteriorates, bit error rate increases, or specific interference characteristics are received, while avoiding flip-transition problems.

This application proposes a secure interactive control method for smart meters, a smart meter, and an interactive system, relating to the field of smart grid technology. The secure interactive control method includes: generating a one-time access token based on the smart meter's identity, dynamic factor, and key information; generating a dynamic identification code based on the one-time access token; refreshing the dynamic identification code according to the validity period of the one-time access token; receiving a near-field communication connection request, the connection request carrying a token to be verified parsed from the dynamic identification code; verifying whether the token to be verified matches the locally stored one-time access token; and, after successful verification, signing the current electricity consumption data and sending the signed current electricity consumption data to an external terminal via a near-field communication link; receiving business processing information and performing local billing status updates and / or power on / off control based on the business processing information. The dynamic identification code in this application ensures the security of the payment instruction source.

The application discloses a kind of cross-manufacture train wake-up process train-ground communication interruption hierarchical fault-tolerant processing method and system, which comprises the following steps: dividing the security criticality level of operation, establishing the stage-safety degree mapping relationship of wake-up process;Pre-generation stage-tolerance mapping table bound with stage-safety degree mapping relationship, in the wake-up process, real-time monitoring the communication link state between vehicle-mounted controller and regional controller;When detecting train-ground communication interruption, identify the wake-up stage currently in, query stage-tolerance mapping table, obtain tolerance time parameter and communication interruption processing strategy code, execute communication interruption processing strategy.The technical scheme is adopted, wake-up process is divided into stage closely associated with security level, and different fault-tolerant strategies are dynamically matched for each stage, fundamentally compatible with two kinds of extreme manufacturer logic, so that train can be seamlessly completed in different manufacturer's FAO system Wake up.

This invention provides a motor controller and engineering machinery. The motor controller includes: a driver connected to a motor; and an MPU (Multi-Core Processor), the MPU including a multi-core processor. Each core of the multi-core processor communicates with each other via a communication link for data exchange. The multi-core processor is connected to the driver and is used to detect motor operating status information and control the motor based on the operating status information. This invention adopts a single-chip MPU multi-core processor design, which can realize the motor controller function with a single MPU, meeting the requirements of small size and compact design of the controller, reducing equipment cost, and conforming to the ISO 13849 functional safety PLD / CAT2 class architecture.

This invention belongs to the field of wireless signal processing technology and provides a UAV positioning method based on TDOA, including: deploying a UAV swarm, establishing communication links between lead UAVs and between lead UAVs and target wingmen; wherein the UAV swarm is divided into several sub-swarms, each sub-swarm including a target wingman, a reference lead UAV, and an auxiliary lead UAV; establishing a coordinate system with the reference lead UAV as the origin; constructing a TDOA equation for obtaining the coordinate vector of the target wingman; solving the TDOA equation to obtain the solution coordinates; filtering out invalid solution coordinates based on a preset error threshold, and retaining the solution coordinates as valid positioning data; averaging the positioning data obtained multiple times, which is the final positioning result of the target wingman. The method provided by this invention for solving the position of UAVs can reduce computation time and does not require prior knowledge of the target state, thus having broad application prospects.