226 results about "Relay systems" patented technology

The invention relates to the technical field of wind power generation, discloses an intelligent safety early warning method for wind power hoisting operation, and aims to solve the technical problems of insufficient perception and lack of data fusion and intelligent analysis decision in existing operation safety management. The method is characterized by comprising the following steps: constructing an intelligent terminal integrated with a UWB / IMU / safety belt / environment sensor; deploying a positioning base station network and a signal relay system; a multi-source data fusion intelligent analysis platform is established, and high-precision positioning, behavior recognition and deep learning risk prediction are achieved; and a closed-loop intelligent decision-making and execution system is constructed, and graded early warning, electronic fence, environment linkage and one-key help calling are realized. According to the method, a traditional experience driving mode is innovated into a data driving mode, the safety level and the operation efficiency of wind power hoisting operation are remarkably improved, and the defects of insufficient perception, information isolation and the like are overcome.

Certain aspects of the present disclosure provide techniques for RRC connection reestablishment by a remote UE. In some cases, a remote UE may be configured to detect, on at least one of a first link between a first relay UE and a first network entity or a second link between the remote UE and the first relay UE, a radio link failure (RLF) resulting in a loss of radio resource control (RRC) connection and attempt to reestablish RRC connection by performing at least one of relay selection or cell selection.

The invention discloses an unmanned aerial vehicle cluster relay system optimization method, and aims to significantly reduce the overall outage probability of the system by performing adaptive optimization on cooperative position deployment and flight trajectories of multiple unmanned aerial vehicles under multiple actual constraint conditions of flight speed, safety distance, flight boundary and the like. Therefore, the reliability and the service quality of the multi-unmanned aerial vehicle relay communication network are improved. According to the method, a Markov decision process (MDP) model is constructed, a multi-unmanned aerial vehicle trajectory optimization problem is converted into a multi-agent reinforcement learning problem, and efficient optimization of unmanned aerial vehicle trajectories is realized by using a centralized training-distributed execution framework, so that the outage probability of a communication system is minimized.

Systems, methods, and instrumentalities are described hereinfor connection management and recovery associated with multipath sidelink relays. A relay wireless transmit / receive unit (WTRU) may provide a remote WTRU with RRC state information associated with the relay WTRU. The WTRU may receive configuration information indicating conditions to initiate a relay (re) selection or PC5-RRC connection to a relay WTRU. Conditions may be provided for initiating transmission over a relayed (e.g., secondary) path, where the conditions may depend on the RRC state information at the relay WTRU, a cell ID, and / or QoS.

Systems, methods, and instrumentalities are described herein for relay selection associated with WTRU-to-WTRU relays. A wireless transmit / receive unit (WTRU) may be configured to perform relay selection associated with WTRU-to-WTRU relays. The WTRU may (e.g., determine to) perform relay (re)selection, for example, based on active traffic and / or performed measurements (e.g., reference signal received power (RSRP) measurements). The WTRU may perform network assisted relay (re)selection. The WTRU (e.g., in coverage WTRU) may initiate a connection (e.g., RRC connection) or trigger a message (e.g., RRC message), for example, based on WTRU-to-WTRU relaying criteria. The WTRU may report measurements to the network, for example, based on multiple hops.

To improve communication efficiency in a relay system that uses a plurality of types of lower protocols with different communication speeds and involve conversion of upper protocols.SOLUTION: In an in-vehicle system, protocol conversion units 21, 24 of a central ECU 2 convert first messages transmitted and received with an external tool into second messages transmitted and received with a terminal ECU, and vice versa. A packing unit 22 combines one or more second messages supplied from the protocol conversion unit 21 into a combined message and transmits the combined message to the zone ECU 3 using the third lower-level protocol. An unpacking unit 23 extracts one or more second messages from the combined message received from the zone ECU 3 using the third lower-level protocol and supplies the extracted messages to the protocol conversion unit 24.SELECTED DRAWING: Figure 3

A method for a relaying system. The method for improving an awareness of the relaying system by user equipment includes encoding information about a relaying service in a vehicle-to-everything message and transmitting the vehicle-to-everything message to the user equipment to improve user equipment's awareness of the relaying system's relaying service.

Certain aspects of the present disclosure provide techniques for paging in sidelink L2 relay scenarios. An example method generally includes connecting, via a sidelink, to a relay user equipment (UE) connected to a network entity; receiving, from a network entity via the relay UE, configuration information identifying a paging mode for the remote UE; and monitoring for paging from the network entity, in accordance with the identified paging mode.

The invention discloses a vehicle relay method and system, a vehicle and a medium, the method is applied to the vehicle relay system, the vehicle relay system comprises a first vehicle and a second vehicle, and the method comprises the following steps: when the first vehicle detects that a condition of entering a communication blind area is satisfied, broadcasting a relay request to a surrounding area; when the second vehicle receives the relay request, determining a relay preference index according to the vehicle state and the relay request, forming a relay response message and feeding back the relay response message to the first vehicle; and the first vehicle determines a relay vehicle from the second vehicles according to the relay response messages and establishes a relay communication link for data relay communication. The relay suitability between the second vehicle and the first vehicle is scored from multiple dimensions through the second vehicle, and the selection standard of the relay vehicle is carried out according to the relay optimization index. The relay demand and the vehicle capability are accurately matched, the data transmission reliability in the communication blind area is guaranteed, and the communication continuity is further guaranteed.

A vehicle-mounted relay device for relaying Ethernet frames includes a plurality of PHY units corresponding to a plurality of vehicle-mounted devices, a switch unit to which the plurality of PHY units are connected, and a control unit configured to monitor operating states of the plurality of PHY units. The plurality of PHY units include a predetermined PHY unit whose operating state switches between a sleep state and an active state in response to reception of a predetermined control signal that differs from the Ethernet frames. When an Ethernet frame to be transmitted from the predetermined PHY unit has been detected during a period where the predetermined PHY unit is in the sleep state, the control unit executes switching control to switch the predetermined PHY unit to the active state.

The invention discloses an optical fiber optical frequency transmission relay system and method based on a spread spectrum technology. The relay system comprises a receiving module, a regenerative laser module and a sending module. The receiving module is used for demodulating the spread spectrum optical signal according to the second pseudo-random sequence to obtain a demodulated optical signal; the spread spectrum optical signal is a signal which is transmitted through an optical fiber link after a preceding stage performs spectrum spreading on the optical signal; the regeneration laser module is used for locking the frequency of the demodulation optical signal to generate a regeneration optical signal and splitting the regeneration optical signal to obtain a return optical signal and a transmission optical signal; the receiving module is also used for modulating the returned optical signal according to the second pseudo-random sequence and transmitting the modulated returned optical signal back to the preceding stage; and the sending module is used for demodulating the post-stage modulation return optical signal to obtain a demodulated return optical signal, carrying out noise suppression and spectrum spreading on the transmission optical signal according to the demodulated return optical signal and a third pseudo-random sequence, and then transmitting the transmission optical signal to the post-stage. By introducing the spread spectrum technology, the second-order Rayleigh scattering signals are filtered out, and the stability and reliability of the system are remarkably improved.

The invention provides an unmanned aerial vehicle relay system adaptive scheduling method and system based on reinforcement learning, and relates to the technical field of reinforcement learning, and the method comprises the steps: simulating rehearsal of a plurality of unmanned aerial vehicles to execute a fire fighting task, and analyzing the time-space demands and potential changes of unmanned aerial vehicle relay communication in the rehearsal process; an unmanned aerial vehicle relay communication scheduling plan is made according to time-space demands and potential changes thereof; and implementing unmanned aerial vehicle relay system scheduling on fire-fighting tasks actually executed by multiple unmanned aerial vehicles according to the unmanned aerial vehicle relay communication scheduling plan by using a scheduling model pre-based on reinforcement learning training. A scheduling model trained through reinforcement learning is utilized to adjust an unmanned aerial vehicle scheduling strategy in real time, and efficient completion of a task and optimization of a communication link are ensured. Through the self-adaptive scheduling method driven by reinforcement learning, flexible and efficient relay system scheduling can be realized in a dynamically changing fire-fighting task, the stability of a communication link is effectively guaranteed, and the task response speed and the success rate are improved.

The invention relates to the technical field of robot cluster control, in particular to a cluster inspection robot task coordination scheduling method based on Beidou short message communication, which comprises the following steps: S1, a scheduling center generates a task list according to an inspection area and task requirements, allocates a task number, a target coordinate and an effective time for each task, and sends the task list to an inspection center; forming a task instruction set and issuing the task instruction set to each robot through a Beidou short message; and S2, after receiving the task instruction set, each robot calibrates a local clock according to the Beidou time service signal, generates a local task queue and executes a corresponding task in an effective time window. According to the Beidou short message forwarding method and system, multi-robot cascade forwarding of Beidou short messages in complex terrains such as mountainous areas, canyons and tunnels is realized by constructing a multi-node relay system and a self-adaptive relay selection algorithm; even if a direct connection signal between a single robot and a satellite is blocked, a relay link can still be established through an adjacent robot to transmit inspection data and task instructions.

The application discloses a kind of SF6 density relay comprehensive calibration instrument and calibration and measurement method, including intermediate pipeline and be located on the air pump of intermediate pipeline, the one end of the intermediate pipeline is respectively communicated with the one end of safety valve pipeline, first pipeline one end, second pipeline one end, the other end of intermediate pipeline is respectively communicated with the one end of micro water measuring pipeline and third pipeline one end, the other end of the micro water measuring pipeline is respectively communicated with the one end of inlet pipeline and purity measuring pipeline, the other end of third pipeline is respectively communicated with the other end of first pipeline and fourth pipeline one end, the other end of the fourth pipeline is respectively communicated with the other end of purity measuring pipeline, the other end of second pipeline and muffler pipeline, intermediate pipeline side is equipped with suction pipeline;The application has adopted new pneumatic circuit design, combines density relay system calibration circuit with moisture measurement circuit and purity measurement circuit together, with the characteristics such as high measurement efficiency, convenient, its loop structure is simplified, and measurement is efficient.

An autofocus system is disclosed. The system includes an illumination source. The system includes an aperture. The system includes a projection mask. The system includes a detector assembly. The system includes a relay system configured to optically couple illumination transmitted through the projection mask to an imaging system. The relay system is also configured to project one or more patterns from the projection mask onto a sample and to transmit an image of the projection mask from the sample to the detector assembly. The system includes a controller including one or more processors configured to execute a set of program instructions. The program instructions are configured to cause the one or more processors to receive one or more images of the projection mask from the detector assembly and determine a quality of the one or more images of the projection mask.

The invention provides a low-altitude unmanned system air node optimal deployment method based on communication-link-energy consumption joint optimization. The method comprises the following steps: initializing an unmanned aerial vehicle group; the system constructs a performance model according to the real-time channel information, constructs a multi-objective collaborative optimization problem, and solves the multi-objective optimization problem by adopting an MOPSO-HGD algorithm to obtain an optimal result; deploying the unmanned aerial vehicle group to the optimal position according to the optimal result to form a virtual distributed MIMO array structure; setting an unmanned aerial vehicle electric quantity threshold value, judging the size of each unmanned aerial vehicle remaining electric quantity and the unmanned aerial vehicle electric quantity threshold value, and if the unmanned aerial vehicle remaining electric quantity is smaller than the unmanned aerial vehicle electric quantity threshold value, recycling the unmanned aerial vehicle; otherwise, re-determining the position of the unmanned aerial vehicle group; through a closed-loop control mechanism of channel perception-multi-target optimization-dynamic adjustment, the unmanned aerial vehicle relay system can still keep a high signal-to-noise ratio and strong robustness in a complex low-altitude environment, is suitable for scenes such as low-altitude broadband communication, emergency rescue and urban information networks, and has a good engineering application prospect.

An electrical relay system with tilted contactor mounting. The system may include a housing including a first circuit and a second circuit; a relay may be disposed within the housing and configured to move the contactor between a closed position and an open position to connect and disconnect the first and second circuits, respectively. The contactor may be tilted relative to the vertical axis or any specified axis such that the contactor moves in a tilted manner relative to the vertical axis or any specified axis.

The application relates to a kind of OFDM-based broadband millimeter wave relay system hybrid beamforming design method, comprising: calculating the receiving signal of target node under the condition that each node is all digital processor;The receiving signal is processed using minimum mean square error criterion in target node, and MMSE matrix is calculated;Using the equivalence between maximizing sum rate and minimum weighted mean square error algorithm, the maximum sum rate problem is converted into minimum weighted mean square error problem according to MMSE matrix;Deep unfolding neural network is used to solve the minimum weighted mean square error problem, and all digital processor of each node is obtained;Each node's all digital processor is decomposed based on least square decomposition algorithm, and hybrid beamforming matrix of each node is calculated, the complexity of the algorithm is greatly reduced, and the running time of the system can be effectively improved.

The application relates to an adaptive double-coil time sequence driving intelligent high-voltage direct-current relay system, which comprises an intelligent power control unit, a double-coil driving unit, a main contact unit, an electric parameter sampling unit, a temperature sampling unit, an arc extinguishing assembly, a communication unit and a soft measurement calculation unit. The double-coil driving unit comprises a starting coil and a maintaining coil; the starting coil realizes rapid attraction of the contact; and the maintaining coil maintains the steady state of the contact. The electric parameter sampling unit collects the main loop current, the contact voltage drop, the coil current and the bus voltage; and the temperature sampling unit collects the coil temperature and the environmental temperature. The soft measurement calculation unit obtains the equivalent temperature of the contact and the vibration intensity. The intelligent power control unit dynamically adjusts the coil power-on duration, the driving voltage and the current, realizes coil time sequence switching, completes contact health assessment, fault prediction and grading protection. The communication unit transmits state, parameter and fault information through a CAN / LIN bus; the arc extinguishing assembly realizes arc extinguishing during disconnection; and the system can reduce power consumption, realize deterioration early warning and effectively avoid device burning.

The invention discloses a simultaneous voice transmission system test method and a related device, and relates to the technical field of system testing, and the method comprises the steps: obtaining a test audio set, inputting the test audio in the test audio set into a simultaneous voice transmission system for processing, according to the processing condition data of the simultaneous voice transmission system on the test audio in the test audio set, the test results of the simultaneous voice transmission system under the user experience dimension, the system function dimension and the core module dimension are determined, and the user experience dimension pays attention to the end-to-end perception of the user on the simultaneous voice transmission system. The system function dimension pays attention to the cooperative work condition between modules in the simultaneous voice transmission system, and the core module dimension pays attention to the performance of each independent module in the simultaneous voice transmission system. According to the voice simultaneous transmission system test method disclosed by the invention, complex system tests are classified into three clear levels, problems can be found through the tests of the three levels, the root of the problems can be accurately positioned, and end-to-end full link coverage and verification are realized at the same time.

A communication apparatus in a multi-hop relay system in which a packet is transmitted and received using a flooding method in a first flooding slot and a second flooding slot each including a plurality of sub-slots, the communication apparatus performs: switching a frequency channel to be used to transmit and receive a packet between a first sub-slot and a second sub-slot in the first flooding slot; and not switching the frequency channel to be used to transmit and receive a packet within the second flooding slot, but switching the frequency channel to be used to transmit and receive a packet between a plurality of the second flooding slots.

Systems, methods, and instrumentalities may be configured for QoS partitioning in a relay wireless transmit receive unit (WTRU). A first WTRU (e.g., a relay WTRU) may receive configuration information indicating packet delay budget (PDB) segmentation information. A first WTRU may receive, from a second WTRU (e.g., a source WTRU), a second WTRU channel busy ratio (CBR) and an end-to-end (E2E) PDB associated with a quality of service (QoS) flow. The first WTRU may determine a first WTRU CBR and a first WTRU load. The first WTRU may determine a PDB partition. The PDB partition may be based on the PDB partition information, the second WTRU CBR, the first WTRU CBR, and the first WTRU load. The first WTRU may transmit an indication to the second WTRU. The indication may indicate a PDB for transmission from the second WTRU to the first WTRU.

The invention discloses an energy efficiency optimization method and device of an unmanned aerial vehicle relay system and electronic equipment. The method comprises the steps that an energy efficiency optimization problem is constructed by taking maximization of the energy efficiency of an unmanned aerial vehicle relay system as a target, and the unmanned aerial vehicle relay system comprises a ground source node, a destination node and an unmanned aerial vehicle relay node which are established under a three-dimensional coordinate system; according to the method, an energy efficiency optimization problem is decoupled into a plurality of sub-problems, and the energy efficiency optimization problem is solved in a manner of respectively solving the plurality of sub-problems by adopting a joint optimization iterative algorithm, so that an energy efficiency optimization scheme is obtained; the energy efficiency optimization scheme comprises a target transmitting power of a ground source node, a target transmitting power of an unmanned aerial vehicle relay node and a target flight path of the unmanned aerial vehicle relay node, the target flight path comprises a vertical space flight path and a horizontal space flight path, and the plurality of sub-problems are used for solving the energy efficiency optimization problem from a plurality of dimensions. The technical problem that the energy efficiency of an unmanned aerial vehicle relay communication system cannot be optimized in a three-dimensional track is solved.

To provide a liquid feeding system capable of feeding a liquid of a desired pressure and flow passage to a plurality of use points.SOLUTION: And a relay system (60) connected to the liquid supply system (10) and the liquid supply system (20), wherein the relay system (60) supplies the purified water from a supply flow path (62) to the liquid supply system (20) when the liquid supply system (20) requires the supply of the purified water, and does not supply the purified water from the supply flow path (62) to the liquid supply system (20) when the liquid supply system (20) does not require the supply of the purified water. The purified water is circulated in the supply flow passage 62 and the circulation flow passage 63 regardless of the necessity of the purified water.SELECTED DRAWING: Figure 1

The application discloses a high-voltage relay control method, an electronic device and a program product of a vehicle. The method is used for a high-voltage relay system comprising at least a main positive relay, a pre-charging relay and a main negative relay. The method comprises: performing a power-on process according to a power-on instruction, sequentially performing processes of main positive relay melting detection, main negative relay melting detection, a pre-charging process stage and a pre-charging completion stage, and obtaining a melting detection result; judging whether an abnormality detection condition is met; if the abnormality detection condition is not met, performing a first power-off process; and if the abnormality detection condition is met, performing a second power-off process. The application provides a high-voltage relay control process with multi-scenario stage division, dynamic detection mode switching, load discharge and bipolar melting safety protection. The high-voltage relay melting detection is accurate, and part of the relays can be prevented from being excessively worn due to the melting detection.

The invention belongs to the field of polarization measurement, and particularly relates to a space solar spectrum magnetic field telescope based on multi-wave-plate polarization modulation, which comprises a telescope system, a relay system and a spectrum imaging system, the telescopic system comprises a first 1 / 2 wave plate, a 1 / 4 wave plate and a second 1 / 2 wave plate; when neither the first 1 / 2 wave plate nor the second 1 / 2 wave plate fails, the second wave plate is kept static, and the first wave plate and the third wave plate rotate in the same direction according to a preset different-speed asynchronous motion time sequence, so that the full-stokes component of the solar polarization spectrum is measured; when any one of the first 1 / 2 wave plate and the second 1 / 2 wave plate breaks down, the 1 / 4 wave plate is started, and the 1 / 4 wave plate and the other normally working 1 / 2 wave plate rotate in the same direction according to the re-planned different-speed asynchronous motion time sequence, so that the measurement of the full stokes component of the solar polarization spectrum is maintained. According to the invention, full Stokes measurement can be realized, and the blank of space solar vector magnetic field detection capability in China is filled.

The invention relates to a wireless relay system for a closed long and narrow environment, and the system comprises a portal networking device which is disposed at a tunnel portal; each backbone relay device is provided with a double 5.8 GHz transmission link based on an SDIO (Secure Digital Input / Output) interface and a 2.4 GHz access point based on an SPI (Serial Peripheral Interface) interface; the plurality of backbone relay devices are arranged in the tunnel in a chain-like manner in a cascade manner, the backbone relay device closest to the tunnel portal is connected with the portal internet surfing device through a wired network, and every two adjacent backbone relay devices are connected through a 5.8 GHz wireless link. According to the invention, a hardware architecture is matched with linear topology, so that flexible expansion, rapid deployment and intelligent operation and maintenance are realized; the 5.8 GHz frequency band has good directivity and anti-interference performance in a tunnel; the SDIO interface eliminates protocol stack processing overhead; and seamless coverage of 2.4 GHz signals in the tunnel is ensured through cooperation of the backbone relay equipment and the single-module WiFi coverage enhancement equipment.

The invention discloses a non-cellular wireless access network multi-hop relay resource allocation system and method for offshore long-distance coverage. The system comprises a plurality of wireless relays deployed on the sea surface, an edge distributed unit (EDU), an access point (AP) equipped with a root antenna and a central processing unit (CPU), the AP connected with the EDU provides services for each single-antenna user on the opposite bank through a hop network, wherein each hop network comprises a wireless relay; the system comprises node clusters including an AP cluster, a relay cluster and a user cluster. Considering that each wireless relay is equipped with a root transmitting antenna and a single receiving antenna, each transmission is operated in a half-duplex mode. Reasonable deployment of the relay on the sea surface can be realized, and reachability and rate maximization of the system are realized.

A wireless repeater system comprises a master station device according to one embodiment of the present invention. The master station device establishes point-to-point communication with a plurality of slave station devices via a relay station. The master station device includes: a setting unit for setting a slave station device ID for identifying any one of the plurality of slave station devices; a control unit for transmitting a communication request signal to the slave station device identified with the slave station device ID set by the setting unit, and permitting communication therewith; and a communication unit for communicating, in accordance with the control by the control unit, with the slave station device identified with the slave station device ID set by the setting unit.

The invention relates to a general equipment switch cover control circuit device based on a CPLD (Complex Programmable Logic Device). The general equipment switch cover control circuit device comprises a logic control circuit taking a complex programmable logic device as a core, an input circuit for signal isolation conditioning, an output circuit for power driving isolation, a state indication circuit and a multi-path isolation power supply circuit. According to the invention, the hardware parallel processing capability of the CPLD is utilized to realize nanosecond-level real-time response and strict hardware interlocking of multiple paths of sensor signals; through the design of multi-stage optoelectronic isolation and independent power supply, the anti-interference capability and the system reliability in severe industrial environments such as oil wells and underwater are greatly improved; meanwhile, different devices can be adapted by updating CPLD logic, and high universality and reconfigurability are achieved. The device effectively solves the problems that a traditional PLC is slow in response and a relay system is poor in reliability.