307 results about "Wide area" patented technology

The invention relates to an active splitting and isolated island operation method based on load importance under a disaster condition, and belongs to the technical field of power systems and automation thereof. On the basis of disaster types and power supply area characteristics, constructing a load importance dynamic grading system, optimizing the weight through an analytic hierarchy process-index weight optimization collaborative algorithm, and combining with real-time updating to generate a grading result; the method comprises the following steps: deploying wide-area and local monitoring devices to collect power grid data, setting a safety threshold, triggering a splitting decision when the safety threshold exceeds the limit and the trend deteriorates, calculating an instability rate by using a multi-parameter collaborative instability pre-judgment algorithm, and starting pre-splitting preparation; and the main control center calls a target splitting section optimization algorithm to determine a section in combination with the grading result and the power grid data, generates a splitting instruction after verifying the stability of the island through load flow calculation, and performs classified stability control on the split island. The method can realize accurate load grading, early instability pre-judgment, guarantee of important load power supply such as medical treatment and the like, reduces catastrophe loss, and is suitable for power grid management and control under various disasters.

A system and associated methods provide solutions for end-to-end privacy and per-hop routing and policy decision in multi-hop and Software-Defined Wide Area Networks (SD-WANs) by leveraging unique SDWAN edge identities of edge devices. The system enables end-to-end encryption between traffic source and destination sites using IPsec ESP tunnel mode, with System IPs as the outer IP addresses. The system further enables per-hop integrity protection using IPsec AH transport mode, with WAN IPs as the outer IP addresses. By having some information encrypted between a source device and a destination device and other information encapsulated between hops (e.g., between source device and an intermediate device), the system enables route and policy lookup based on destination site System-IP, along with integrity protection based on SLA-class in packet metadata for independent path selection at intermediate hops.

The invention discloses a land space use control compliance intelligent identification and auxiliary determination system, and relates to the technical field of digital treatment. A data management module receives multi-source heterogeneous time sequence data to construct a dynamic graph structure substrate, and a probability scheduling module predicts global potential conflict probability by using a space-time graph neural network and performs calibration in combination with a historical conflict database; the graph enhancement module positions a key conflict path and a core node by reversely updating a conflict knowledge graph, and the reasoning execution module activates a rule engine to execute accurate matching in a region to be subjected to fine detection and outputs a deterministic conflict identifier; the fusion decision module finally fuses probabilistic prediction and rule judgment results to generate a mixed conflict list, and the feedback module sends the mixed conflict list to the execution terminal and optimizes the model based on feedback. According to the method, multi-level and self-adaptive identification of the land and space purpose conflict from wide-area prediction to accurate judgment is realized, and the supervision efficiency and the decision accuracy are improved.

This application provides a method for secure message transmission, a method for negotiating IPsec SAs, and related apparatus, applicable to wide area networks (WANs). In scenarios spanning multiple tunnel segments, by extending BGP routing and based on VRF granularity, an IPsec SA for end-to-end security protection is negotiated between a first edge and a second edge. After the first edge securely protects VPN service messages based on the IPsec SA, it sends the messages through the overlay end-to-end tunnel between the first and second edges. The second edge processes the messages based on the IPsec SA to obtain the VPN service messages. In this application, security protection only needs to be performed once at the first edge; intermediate nodes do not require encryption / decryption processing, thus ensuring secure message transmission while improving transmission efficiency and reducing transmission latency.

Solutions are disclosed that enable capacity-aware local repair of tunnels in packet switched wide area networks (WANs). Traffic engineering agents on the routers are programmed to create the tunnels and include sets of primary and alternate tunnels sharing the same source and destination. A tunnel source router is provided a traffic split for allocating incoming traffic to its primary and alternate tunnels for when the primary tunnel is operating at or near full capacity operation, and another traffic split that shifts at least some traffic from the primary tunnel to the alternate tunnel, when the primary tunnel's capacity drops below a threshold. A tunnel may lose capacity for commonly-occurring reasons, such as a disturbance to cabling and faults in optical transceivers. Traffic engineering agents along the tunnel report capacity to the tunnel source router, permitting the network to respond to capacity changes more rapidly than waiting for network tunnel reconfiguration.

The invention provides a multi-target adaptive optical tracking method and system for an unmanned intelligent turntable. The method comprises the following steps: acquiring a video stream and turntable attitude data on an unmanned intelligent turntable; carrying out scene understanding operation on the video stream, fusing the dynamic attention area and extracting spatial distribution information of a plurality of moving targets in a rotary table coordinate system; calculating an optical deformation parameter of the liquid lens, and driving the liquid lens to execute non-uniform optical curved surface adjustment, so that a focus area simultaneously covers a plurality of spatially dispersed moving targets; receiving distance data fed back by the distance measuring equipment, carrying out cross validation on the distance data and actual optical parameters of the adjusted liquid lens, and generating a cooperative calibration instruction when the deviation exceeds the tolerance; and synchronously updating the dynamic region of interest identification logic of scene understanding and an optical deformation parameter calculation strategy according to the instruction. According to the invention, the stability and spatial positioning precision of multi-moving-target tracking in a wide-area complex scene are improved.

The present disclosure describes illumination methods and systems for illumination and sequencing applications that can be utilized for, for example, microscopy and sequencing platforms. The methods and systems of the present disclosure can provide wide area, flat illumination, which can reduce error and improve system throughputs.

The invention provides a multi-scene composite scheduling method and system for heterogeneous unmanned aerial vehicles, and the method comprises the steps: collecting the flight demand data and flight resource data of a heterogeneous unmanned aerial vehicle cluster in real time, and constructing an unmanned aerial vehicle global resource pool; calculating a matching degree between each flight demand and each flight resource in the unmanned aerial vehicle global resource pool; and constructing a multi-target composite optimization model based on the matching degree, and solving the multi-target composite optimization model to obtain an optimal scheduling result of the unmanned aerial vehicle. According to the invention, for the demands of multi-task concurrence, dynamic environment change and resource collaborative allocation in logistics distribution, forest and equipment inspection, emergency disaster rescue, agricultural plant protection and wide-area monitoring scenes, the matching degree of a flight task and an idle unmanned aerial vehicle is calculated in a multi-dimensional manner, and the tasks are dynamically allocated; the method is suitable for efficient matching of heterogeneous computing resources and diversified tasks of a large-scale unmanned aerial vehicle cluster so as to realize collaborative improvement of global scheduling efficiency and system fault tolerance.

The embodiment of the invention provides an unmanned aerial vehicle defense positioning method and system for a complex and wide area, and relates to the technical field of unmanned aerial vehicle defense positioning, and the method comprises the steps: firstly constructing a multi-source detection node dynamic cooperation network which comprises different detection type nodes, a real-time interaction link, an environment adaptation parameter set and a detection parameter dynamic adjustment rule; detection parameters are updated in real time according to regional environment data, then inter-level signal cross detection is executed based on the multi-source detection node dynamic collaborative network, related data are acquired, a positioning guide parameter set is generated according to the detection data, detection nodes are scheduled to carry out cross-level collaborative positioning confirmation, and an unmanned aerial vehicle cross-level collaborative positioning result is obtained. And finally, generating an unmanned aerial vehicle defense positioning instruction adaptive to the regional environment according to an unmanned aerial vehicle cross-level cooperative positioning result, and feeding back a positioning result to a network to update a detection parameter adjustment rule, thereby effectively coping with a complex and wide region unmanned aerial vehicle threat, and realizing accurate defense positioning.

An improved accessory bracket for composite panels and the like is disclosed. In one embodiment, the accessory bracket comprises two flanges, each having two posts that protrude inwards into a panel in through holes. During assembly, the flanges are inserted into two through holes from opposite sides of the panel such that the posts (which are male and female) engage with each other. The male posts have an interior longitudinal channel adapted, e.g., to engage with a screw inserted from the outer face of the flange having a female post. The head of the screw rests against the face of the flange it is inserted into, and the threads pull the opposing flange towards it. When fully tightened, the flanges provide a compression force on a relatively wide area of the panel, providing a secure accessory attachment point on the panel.

The invention discloses an RTK (Real Time Kinematic) positioning method applicable to a quadruped robot in an outdoor wide area range, and aims to solve a series of problems caused by insufficient adaptability of an existing GNSS (Global Navigation Satellite System) RTK positioning scheme to the quadruped robot. Accessing a network differential data server by using an NTRIP network protocol through a built-in 4G mobile network receiver of the GNSS receiver, and trying to obtain RTCM3.2 differential data; in the GNSS receiver, if the RTCM3.2 differential data is successfully received, RTK calculation is carried out by combining the satellite original data and the RTCM3.2 differential data, and RTK positioning data is generated; and outputting the generated positioning data to a main controller of the quadruped robot through a communication interface of the GNSS receiver.

To provide a combination vehicle for a mower which considerably reduces fatigue even when mowing a wide area. [Solution] The brush cutter trailer of this invention has a first rod 1 extending horizontally, with one end having a connection part 5 for connecting to the brush cutter, the other end of which is connected to the centre of a second rod 2 extending vertically, one end of which is connected to the centre of a third rod 3 extending horizontally perpendicular to the first rod, a seat part 4 attached to the other end of the second rod, and wheels 7 attached to both ends of the third rod so that they can rotate freely.

This product consists of a heat source unit and a water heater. The heat source unit and the water heater share several common features in the front view: multiple horizontal grooves are provided on the lower part of the product; the horizontal grooves on each product are arranged at equal intervals; and the horizontal grooves occupy a wide area of ​​the width of the product. These features give the product an overall sense of unity as a set of industrial machinery and equipment. The arrangement of each component can be freely changed.

The invention discloses a wide area measurement system abnormal data identification method, system and related device, and the method comprises the steps: carrying out the single electrical interval data abnormity identification of a single PMU at a plant station end, and obtaining a first abnormal data identification result; according to the first abnormal data identification result, when a certain measurement data in a single electrical interval is abnormal, comparing and identifying data anomalies of a plurality of PMUs at a plant-station end to obtain a second abnormal data identification result; if the same PMU is accessed to a plurality of electrical intervals on the same bus, performing wide-area level correlation comparison analysis on wide-area measurement system data at a master station end, and performing wide-area measurement system abnormal data identification through a power grid topology connection relation to obtain a third abnormal data identification result; and integrating the obtained abnormal data identification result, and obtaining an abnormal data identification result of the wide-area measurement system through collaborative analysis of a main station and a plant station. According to the method, the identification accuracy of the WAMS abnormal data is improved, and the work of diagnostic analysis of a master station is reduced.

This invention provides a net bracket that can be attached to scaffolding posts over a wide area, including the fastening portion of the scaffolding post. [Solution] The net bracket 10 comprises an arm 30, an arm support body 20 that extends and supports the arm 30, and a first leg portion 40 and a second leg portion 50 that are detachably attached to the scaffolding support column 220 at the upper and lower parts of the arm support body 20. Between the first leg portion 40 and the second leg portion 50, the arm support body 20 has a fastening portion storage space S that prevents the arm support body 20 from interfering with the fastening portion 230, etc. When the arm support body 20 is positioned relative to the fastening portion 230, etc., the fastening portion 230, etc. is straddled and stored within the fastening portion storage space S.

The invention discloses a modular splicing imaging device and an image splicing method, and belongs to the technical field of camera splicing imaging. The device comprises a single-lens imaging module and an image processing box module, and the single-lens imaging module and the image processing box module are flexibly configured, freely combined and rapidly adjusted into an adaptive imaging layout, so that splicing devices of different view fields are constructed, and different use requirements are met. The device has strong expansion capability, can realize multi-layer splicing and multi-view-field splicing, and can enlarge an imaging coverage area in a vertical direction or obtain picture information of different imaging systems in a unified coverage area through multi-layer splicing; the image information can be collected in all directions and at multiple angles through multi-view-field splicing, a panoramic picture with an ultra-large view field and high resolution is formed, the requirement for fine monitoring and observation of a wide area is met, and the application boundary of the device is greatly expanded.

The utility model discloses a multifunctional outdoor stage lamp, which belongs to the technical field of stage lamps, and comprises a movable seat, a stage lamp, an adjusting and adapting mechanism, an adjusting and adapting mechanism and a control mechanism, and the top of the movable seat is fixedly provided with a support frame which is arranged on one side of the support frame. And a telescopic adjusting and adapting mechanism used for adjusting and switching the bubble size is arranged on one side of the moving seat and comprises a storage box arranged on the surface of the supporting frame. By means of the mode, the storage box and the adjusting assembly can be matched for bubble output when the bubble output requirement is needed, the adjusting assembly is used for adjusting the sizes of bubbles according to different requirements for outdoor small scenes where atmosphere is created or outdoor stage performance where large-range bubble coverage is needed, the requirements of different scenes are met, and the bubble output efficiency is improved. Through adjustment of the rotating assembly, spraying of bubbles can be adjusted in the horizontal direction so as to cover a wider range.

The utility model relates to the technical field of viewing fish tanks, in particular to a multi-point feeding viewing fish tank which comprises a base, a glass tank wall, a tank cover, an observation cover, a first protective shell and a rack, the glass tank wall is fixedly connected to the base, the tank cover covers the glass tank wall, the observation cover is rotatably arranged on the tank cover, the first protective shell is fixedly connected to the tank cover, and the rack is fixedly connected to the first protective shell. And a rack is slidably arranged in the first protective shell. A servo motor is started, an output shaft of the servo motor drives a gear to rotate, the gear is meshed with a rack, the rack drives a mounting block and a feed bottle to move rightwards, the feed bottle drives a push rod, a connecting block and a clamping rod to move rightwards, the clamping rod slides in a guide groove, and the clamping rod drives the push rod to move front and back; therefore, the feed can be spilled along a straight line for multiple times, the purpose of multi-point feeding is achieved, the fish can obtain food in a larger range, and it is guaranteed that each fish can eat fish food.

The utility model relates to a radar orientation device based on a wide area slope, which belongs to the technical field of radio orientation devices, and comprises a support rod, a dial and an angle detection device, the dial is fixedly arranged on the support rod, the dial is provided with scales, and the angle detection device is fixedly provided with an image scanner. The image scanner is used for image scanning of scales on the dial, the image scanner is located outside the angle detection device, the angle detection device is connected with a rotating joint through a screw, and the rotating joint can be inserted into the supporting rod in a self-rotating mode; the rotating joint rotates relative to the supporting rod through the rotating angle detection device, and the image scanner rotates and scans the scales on the dial in an image manner; the angle detection device has the beneficial effects that whether the angle detection device rotates clockwise or anticlockwise can be detected, the degree of rotation of the angle detection device in the clockwise or anticlockwise direction can be detected, and the orientation precision of the angle detection device in monitoring is improved.

A wireless device capable of using embedded subscriber identity modules (SIM) to communicate with multiple active cellular networks is presented. The wireless device is configured to maintain a first communication connection with a first wide area network of the plurality of wide area networks; access second network metadata associated with a second wide area network of the plurality of wide area networks and the second eSIM; access third network metadata associated with a third wide area network of the plurality of wide area networks and the second eSIM; select the second wide area network based at least in part on a comparison between the second network metadata and the third network metadata; and establish a second communication connection with the second wide area network.

The present invention relates to a combination forest firefighting and water supply device. The present invention comprises: a water tank (10) that contains water; a discharge pipe (20) for discharging water; main branch pipes (30) composed of a plurality of water supply lines; and terminal boxes (40) that connect the main branch pipes (30) to each other so that forest firefighting operations can be performed over a wide area. According to the present invention, a plurality of hydraulic sprinklers (60) and electric sprinklers (70) are installed on the main branch pipes (30) and water supply pipes. The hydraulic sprinklers (60) spray water using water pressure, and the electric sprinklers (70) spray water using an electric motor. According to the present invention, after a fire is suppressed, water inside the pipe is automatically discharged to the outside by a drain valve (80), and water inside the pipe is forcibly discharged to the outside by an air supply valve (100). According to the present invention, a plurality of control valves (90) can be used to operate a water supply device even in a region far away from the site of a fire.

A system comprises a wireless network comprising (1) first nodes that serve as a synthetic wide area base station for communicating data with a mobile handset and (2) second nodes that serve as a repeater network for propagating the data going to or from the synthetic wide area base station. The mobile handset includes multiple antennas that point in different directions. Different ones of the first nodes communicate the data to or from the mobile handset via wireless signals in accordance with the antennas' directionality. The wireless signals share the same frequency, encode the data, and are (1) respectively received by the different first nodes from different ones of the antennas or (2) respectively transmitted by the different first nodes for reception by different ones of the antennas. The nodes propagate the data via multiple paths through the wireless network as millimeter wave wireless signals that provide time-shifted representations of the data.

A pad having a fan guide structure is provided. [Solution] The pad with fan guide structure comprises a main body 10 and a fan 20 removably mounted on a fan mounting part 11 of the main body, with the fan's outlet 201 connected to an air intake 211 of the air guide structure. The air guide structure has at least one air outlet 212, the exhaust direction of which faces the main body toward the buttocks of a person sitting on it. The integrated design of the fan and air guide structure guides airflow to the area in contact with the user, allowing the airflow to cover a wider area and guide the direction more precisely, greatly improving heat dissipation efficiency and comfort during use.

Device for securing a component over a surface against mechanical manipulation, in particular against drilling, chiseling, sawing or similar interventions, characterized in that at least one flexible, linear sensor element is arranged in a surface distribution within, on or between layers of the component, that the sensor element is permanently covered or embedded by a building material and that the sensor element is designed to detect structure- or vibration-induced mechanical effects on the component and to transmit a corresponding signal to an evaluation unit.

The application provides a wide-area infrared point target detection tracking cooperative satellite system, which comprises a camera subsystem, a target processing subsystem, a task planning subsystem, an intersatellite network subsystem, an imaging quality guarantee subsystem and a light shield subsystem; the camera subsystem is used for imaging infrared point targets in a wide-area range to generate a wide-area monitoring range image containing weak infrared radiation targets; the target processing subsystem extracts two-dimensional plane coordinates of the targets from the infrared image, generates three-dimensional positions and speeds of the targets, and reasonably distributes different targets to different satellites for data fusion; the task planning subsystem calculates orbit positions and observation capabilities of other cooperative satellites according to the three-dimensional positions of the targets, and performs observation task planning on the other cooperative satellites; the intersatellite network subsystem is responsible for receiving two-dimensional angular trajectories provided by other satellites, providing the two-dimensional angular trajectories to the target processing subsystem, and sending information such as cooperative planning generated by the task planning subsystem to other satellites.

This technology generates electricity from sunlight above cultivated land while growing crops in the ground. The challenge lies in being able to easily and efficiently change the position of solar panels across a wide area to the optimal installation location simultaneously, while maintaining strength against strong winds and other elements. [Solution] The sliding mechanism for the solar panel consists of multiple fixed solar panels 3 mounted at an angle of 10 to 30 degrees via an arm 2 supported on a support column 1. A slide guide is attached to the upper surface of the arm 2, and the movable solar panel 7 is mounted on the slide guide, maintaining a minimum gap with the fixed solar panel. A link 8, which is rotatably supported on the movable side of the slide guide 4, has a drive member 9, which is also rotatably supported at the other end. The drive member 9 is fixed to a transmission means 10, which has a drive wheel 11 and a drive shaft 12 and consists of a worm gear reducer, a motor, a control unit, and a hand crank.

The invention discloses an arc-shaped spray pipe provided with double rows of nozzles, and relates to the technical field of spray pipes, and the arc-shaped spray pipe provided with double rows of nozzles is characterized by comprising a water supply device for rotationally atomizing water flow to form scattering, and two steering devices arranged on the water supply device, the steering devices are used for adjusting the spraying direction, the adjusting devices are arranged on the two steering devices correspondingly, the adjusting devices are used for increasing the water flow form and achieving diversification, and the water supply device is arranged and rotated, so that water flow is not concentrated into a single water column any more, is scattered in an umbrella shape and covers a wider area; the spraying range is effectively widened, spraying work in different states can be achieved through the arrangement of the steering device, the using effect of the device is improved, the overall functionality of the device is improved, the state of water flow is changed through the arrangement of the adjusting device, the device can adapt to different working conditions, and therefore the using effect is improved.

The invention provides a system architecture for cross-data center large model training and a resource allocation method and system, and belongs to the technical field of cross-wide area distributed large model training. According to the method, large-scale model cooperative training across multiple data centers can be realized, and the bottleneck that the computing power of a single data center is limited is broken through. Through unified modeling and scheduling of calculation, memory and network resources, task loads can be intelligently allocated according to hardware performance and network bandwidth of different data centers, and efficient collaborative utilization of computing power resources is realized. The training task of the super-large-scale model can be rapidly completed in the heterogeneous computing power environment, and the training time is remarkably shortened. The provided flexible parallelism degree allocation method can be adaptive to different task and resource conditions, the proportion of data parallelism, model parallelism and pipeline parallelism is automatically adjusted, the parallelism efficiency is improved, and the communication overhead is reduced. A training time estimation function is integrated, the overall time delay and resource requirements can be predicted before task execution, and a basis is provided for scheduling decision making.

The present disclosure relates to a method and system (100) capable of authorizing access to a vehicle (1) if the vehicle (1) is not connected to a wide area communication network (50), the system (100) configured to: send a digital regular key (D-R-K) from a remote node (800) to an electronic device (10) via the wide area communication network (50); attempting to send the reservation data and the digital regular key (D-R-K) from the remote node (800) to the vehicle (1) via the wide area communication network (50), in the event that it is determined that the reservation data and the digital regular key (D-R-K) cannot be transmitted from the remote node (800) to the vehicle (1) because the vehicle (1) is not connected to the wide area communication network (50): transmitting the reservation data and the digital backup key (D-BU-K) from the remote node (800) to the electronic device (10); a digital backup key (D-BU-K) is transmitted from the electronic device (10) to the vehicle (1) via a local communication network (55).

Various aspects of the present disclosure relate to techniques for control channel design. A user equipment (UE) may be configured to receive a message comprising a pattern of synchronization signal blocks (SSBs) spanning a time duration, determine, based on the pattern of SSBs, a first subset of SSB indices associated with a first time period of the time duration and a second subset of SSB indices associated with a second time period of the time duration, and receive an SSB in accordance with an associated SSB index based on the pattern of SSBs, the first and second subsets of SSB indices, and the time period corresponding to the SSB.