118results about How to "Ensure communication efficiency" patented technology

The invention provides an encryption communication method and system for a blockchain node, wherein the method comprises the following steps: firstly, joining a participating node of a blockchain network, using a first signature private key of the participating node to sign a first user identifier and a first signature public key of the participating node, transmitting a first joining broadcast message to the blockchain network after stamping a timestamp via a timestamp server; analyzing the first joining broadcast message to obtain the first user identifier and the first signature public keyvia a mining node; carrying out validity verification on the participating node according to the first signature public key; generating a first encryption private key of the participating node via a supervising node according to a main key, a public parameter and a first user identifier stored via the local node; and carrying out safety communication based on the first user identifier and the first encryption private key via the participating node and the target node. Thus, the communication efficiency is improved on the basis of ensuring the communication safety of the blockchain network.

The invention relates to a method for the team formation and the separation of a cooperative adaptive cruise control vehicle team. The method comprises the following steps that: S1) defining a relevant critical distance, a safe distance, team formation upper limit length and the like; S2) sending a self-vehicle state to other vehicles by a vehicle, and receiving vehicle team adding or leaving information sent from surrounding driven vehicles; S3) detecting and identifying a vehicle distance and the surrounding environment of the vehicle; and S4) analyzing the information received by each vehicle according to a self-set rule set by a control system, feeding back an execution result to a communication system, and releasing execution information to each vehicle by a communication system. Themethod formulates various self-set rules for vehicle team formation and separation, wherein the self-set rules include a rule for adding a single vehicle into the vehicle team, a rule for carrying outvehicle team formation, and a rule for separating the vehicle team into a plurality of vehicle teams. Therefore, the team formation and the separation of the cooperative adaptive cruise control vehicle team can be realized.

The invention discloses a control device and a control method supporting a single IO (Input / Output) virtual user level interface. The device comprises a system bus interface module, an operation module, a DMA (Direct Memory Access) module and a network pack distribution arbitration module, wherein the system bus interface module is used for transmitting data between the device and a processor and realizing a transaction layer, a data link layer and a physical layer function which are accordant with a PCI (Peripheral Component Interconnect) Express protocol; the operation module is used for realizing mapping among an equipment configuration space, a communication interface QP with a virtual function (VF) and an operation queue (OQ) resource and directly accessing the QP by using a doorbell system, and comprises M operation queues; M is more than or equal to 1; the DMA module is used for mapping a DMA engine according to the idle condition of the DMA engine; the DMA engine is used for transmitting and receiving data; and the network pack distribution arbitration module is used for receiving a network pack transmitted by the DMA engine, arbitrating and selectively transmitting the network packs of different DMA engines, receiving network packs in the network at the same time, and transmitting to the DMA engine for processing.

A beam failure recovery method and device, a storage medium, and a user equipment are provided. The beam failure recovery method comprises: receiving a reference signal set configured by a base station for monitoring beam failure, the reference signal set for monitoring beam failure comprising at least one reference signal; measuring the signal quality of each reference signal, and calculating according to the signal quality of each reference signal to obtain an estimated block error rate (hypothetical block error rate) of each reference signal; and triggering a beam failure recovery process if the reference signal set is in the Multi-TRP / Multi-Panel mode and at least one reference signal in the reference signal set used for monitoring the beam failure has the beam failure. According to the technical scheme of the invention, beam failure recovery can be realized in a Multi-TRP / Multi-Panel scene, and the communication efficiency between the user equipment and the base station is ensured.

The invention discloses a wireless sensor network fault processing method in the technical field of wireless communication. The method comprises the following steps of: after a server is started, starting a monitoring process to monitor fault alarm information; after a node is started, sending a start message to the server; maintaining a node information sheet by using the server according to the start message sent by the node; and judging whether the node per se has a fault by using the node, and if the node per se has the fault, judging a fault level by using the node and performing corresponding processing according to the fault level. Due to the adoption of the method, the communication efficiency of a network is ensured and the hardware resource of the node is improved.

The invention discloses a data communication method and a data communication device for an electric car charging pile and a server. The method comprises the steps of sending register data to a server; sending charging start data to the server, and receiving charging start receiving data sent by the server; during a charging processing, sending charging data at first intervals, wherein the charging data at least comprises one of the following data: a charging type, a charging voltage, a charging current, a current charging pile power, a charged electric quantity, a load state of a current car battery, a current electric meter reading, a car mileage, a charging pile internal temperature, a charging gun temperature and a battery temperature; sending charging end data to the server, and receiving charging end receiving data sent by the server. The device comprises a register data sending module, a charging start data sending module and a charging data sending module, used for achieving the abovementioned method. According to the method and the device provided by the invention, the state of the charging pile can be monitored by the server in real time.

The invention discloses a channel condition detection method, network equipment and user equipment. The method comprises the steps of sending configuration information to the user equipment; sending downlink reference signals to N downlink receiving ports of the user equipment, receiving uplink reference signals sent by the user equipment through M uplink sending ports, measuring the uplink reference signals to obtain channel state information of the uplink sending ports, and receiving the channel state information of the N downlink receiving ports sent by the user equipment; and determining downlink channel state information of the network equipment and / or determining uplink channel state information of the user equipment based on the channel state information of the uplink sending portsand the downlink receiving ports.

The system includes following arrangements: BCM1250 microprocessor assigns a physical memory as shared memory; setting up address mapping register in PCI configuration space; preserving a segment of memory address space for PPC8245 microprocessor; setting up BAR0 register in PCI configuration space, whose shared memory is divided into two communication channels: first channel is from PPC8245 to BCM1250, and second channel is from BCM1250 to PPC8245. Thus, communication between two CPU is realized through the said two channels. The invention realize first channel operated in reliable synchronous transmitting mode, and second channel operated in not reliable synchronous transmitting mode so as to guarantee both communication efficiency, reliability and stability of system.

A method for communicating in a low power communication network, a corresponding low power communication network system and a network node, where the method enables low power consumption by the data transmission node in the low power communication network while ensuring the low power communication network communicates efficiently. The network comprises a first network node and a second network node, where the first network node transmits a beacon frame that is used to indicate the time for data transmission by the first network node, and the second network node detects the beacon frame to synchronize its data transmission with the first network node.

The invention provides a real-time intelligent debugging method based on RS485. The method includes the steps that (1) parameter information including the largest number of fault polling times and the longest forbidden time is configured on a communication device; (2) a communication signal is sent to an RS485 bus by means of the communication device to poll a connected RS485 communication terminal; (3) if the RS485 communication terminal cannot be communicated, a forbidden mechanism is started to test the connected RS485 communication terminal, and first, whether a forbidden identification exists on the communication terminal is judged. According to the method, a user can quickly and clearly find communication faults and detect fault points, communication efficiency can still be guaranteed after the faults occur, and according to the method, design is simple, processing speed is high, communication efficiency is high and the method is easy to use and popularize.

The invention relates to an inverter in a power generation system, which is used for converting direct current input from direct current side equipment into alternating current for supplying power, and comprises a control device and a communication device, the control device is used for controlling the inverter to convert the direct current input from the direct current side equipment into the alternating current for supplying power; the communication device is coupled with the control device and is used for sending a networking information request signal used for requesting networking information to direct current side equipment in the power generation system through a direct current power line; the frequency of the networking information request signal is within a first frequency band, networking information from direct-current side equipment is received, a control signal is sent to the direct-current side equipment, the frequency of the control signal is within a second frequency band, and the control signal is used for controlling working parameters of the direct-current side equipment; wherein the first frequency band is lower than the second frequency band. According to the inverter, crosstalk during networking of the inverter and the direct-current side equipment can be effectively prevented. In addition, the invention also relates to a communication device, DC side equipment and a power generation system.

The invention discloses a data transmission method and device. The method comprises the steps that a first station sends a threshold parameter set to a second station, wherein the threshold parameter set carries related information for informing the second station of sending a channel appointment request frame; the first station receives the channel appointment request frame sent by the second station; the first station sends a response frame corresponding to the channel appointment request frame to the second station; and the first station receives a data frame sent by the second station. Through application of the scheme, the first station can flexibly control the station to start RTS protection or not and flexibly set an RTS threshold according to channel busy or idle condition and channel quality, and on the premise of ensuring certain communication efficiency, a collision is effectively avoided.

The invention provides an acceleration method and apparatus based on multi-path aggregation. The method comprises the following steps: performing parameter test on a current network state parameter according to an acceleration request of a user; determining a main path between an aggregation node and a user client, establishing a main path connection between the aggregation node and the user client, and establishing a connection between the aggregation node and a server at the same time; selecting an auxiliary path between the aggregation node and the user client according to the network stateparameter of the user, and establishing an auxiliary path connection between the aggregation node and the user client; and when the main path connection abnormal, transmitting data between the aggregation node and the user client through the auxiliary path. According to the method, the data are dynamically received and sent through the aggregation node for ensuring that the dynamically adjusted new link can still achieve the interaction with an online game server through the aggregation node in the case of communication failure of a certain forward link, and the problem that the accelerationcannot be achieved due to the offline of the link is solved.

The invention provides a method and a device for determining beam failure detection (BFD) resource, communication equipment and a medium, and belongs to the technical field of wireless communication. The method comprises: a terminal device determines configuration information sent by a network device, and determines a target transmit-receive point (TRP) and a target BFD resource corresponding to the target TRP according to the configuration information, so that the terminal device can detect whether a beam failure occurs in the target TRP based on the target BFD resource. Therefore, the terminal device can detect the beam failure of the target TRP in time based on the BFD resource so as to recover the beam failure as soon as possible, thereby ensuring the communication efficiency and communication reliability between the terminal device and the network device.

The invention provides a data transmission method and device. The data include one or multiple data frames. The method comprises the following steps: acquiring communication requirement parameters ofservices to which to-be-transmitted data belong; calculating the number of retransmission groups of each data frame and the number of data frame copies of each retransmission group according to the communication requirement parameters; according to the calculated number of the retransmission groups of each data frame and the number of the data frame copies of each retransmission group, generatinga retransmission group for each data frame; and transmitting the generated retransmission group. According to the data transmission method provided by the invention, during wireless network data transmission, the number of the retransmission groups of the data frames and the number of the data frame copies in the retransmission groups are determined according to the communication requirements of services, confirmation information is waited after one retransmission group is transmitted, so that the time for waiting for the confirmation information is saved for a data transmission process, the communication time delay requirement is considered while the data transmission reliability is improved.

The embodiment of the invention provides a service quality management method, electronic equipment and a storage medium. The service quality management method is applied to a service configuration node, the service configuration node is used for managing a control node of a wireless access network, and the method comprises the following steps: extracting user access characteristics of network data of the wireless access network; determining at least one service type corresponding to the network data according to the user access characteristics; and transmitting the at least one service type to the control node, so that the control node performs service quality management on the at least one service type. As the requirements of different service types on the service quality are greatly different, the service quality management reliability is improved by performing service quality management on the service types, and the communication efficiency of each service scene is ensured especially in a communication architecture suitable for numerous service scenes.

The invention provides a hub motor controller which is used for applying a hub brushless DC motor to a robot hub driving system. The hub motor controller comprises a control circuit and a three-phase driving bridge circuit and also comprises a Hall sensor, wherein the three-phase driving bridge circuit drives a brushless DC motor, a signal output end of the control circuit is in control connection with the three-phase driving bridge circuit, an acquisition signal input end of the Hall sensor is connected with the brushless DC motor, an acquisition signal output end of the Hall sensor is connected with the control circuit, the control circuit measures and calculates a rotor position of the brushless DC motor according to an acquisition result of the Hall sensor, the acquisition signal output end of the Hall sensor is connected to the control circuit through a speed closed-loop regulator, the speed closed-loop regulator is provided with a first input end, the first input end is used for setting a reference speed, an output end of the Hall sensor is connected with a second input end of the speed closed-loop regulator, and the control circuit controls and adjusts driving power output from the three-phase driving bridge circuit according to an output result of the speed closed-loop regulator so as to adjust a rotational speed of the brushless DC motor.

The invention discloses a method for achieving shared communication by modulating radar imaging waveforms through a random matrix. The method comprises the steps: constructing a random matrix modulation-OFDM waveform library on the OFDM waveform by utilizing the basic waveform and the random matrix; determining different transmitting modes at a transmitting end according to different communicationmodes, selecting corresponding parameters according to radar performance and communication transmission requirements, and separating echo signals at a radar receiving end by utilizing pseudo-orthogonality of transmitting signals to realize radar imaging; at a communication receiving end, demodulating the communication information by utilizing the fact that a received signal has a relatively hightarget peak at the output end of a matched filter corresponding to a transmitted waveform. According to the invention, the excellent radar imaging performance of the waveform is maintained, and the waveform is utilized to realize shared communication; based on the richness and good orthogonality of the random matrix modulation-OFDM waveform number, the method can guarantee a higher data communication rate and higher data communication quality.

The embodiment of the invention discloses a data transmission method and device and belongs to the field of communication systems. The data transmission method and device can improve the communication efficiency between base stations and communication equipment while the use ratio of communication channels is guaranteed. The transmission method comprises the following steps: firstly, random access lead codes sent by the communication equipment are received by the base stations; secondly, channel conditions corresponding to the random access lead codes or resources occupied by the random access lead codes are acquired by the base stations; finally, communication are conducted by the base stations according to the channel conditions and the communication equipment.

The invention relates to a user direct connection communication method and device, user equipment and a storage medium. The user direct connection communication method comprises the steps that first user equipment acquires a monitoring and / or resource selection mode of second user equipment; and the second user equipment indicates a monitoring and / or resource selection mode of the second user equipment. Therefore, when the energy-saving user equipment occupies the reserved time-frequency resources of other non-energy-saving user equipment, the time-frequency resources occupied by the energy-saving user equipment are not preempted as much as possible, and the time-frequency resources are selected again as much as possible for data transmission, so that the communication efficiency of the energy-saving user equipment is ensured, and the user experience is improved. And meaningless energy consumption caused by resource reselection of the energy-saving user equipment due to occupation of transmission resources is avoided.

The invention discloses a charging conversion apparatus and a charging control method. A charging module in the charging conversion equipment is connected to a first interface, a second interface and a control module; the switch module is connected with the first interface, the second interface and the control module; under the condition that the charging conversion equipment is connected to the charging equipment and the electric equipment, if a first charging protocol supported by the charging equipment is the same as a second charging protocol supported by the electric equipment or the charging equipment does not have a fast charging protocol, the switch module is in a first conduction state, so that the charging module is in an overvoltage protection mode; if the first charging protocol is different from the second charging protocol, the switch module is in a second conduction state, so that the charging module is in an overvoltage protection mode or an output power adjustment mode. According to the application, the problem that the electronic equipment configured with a private quick charging protocol at present can only be quickly charged by adopting the charger adapted to the electronic equipment and is inconvenient to charge can be solved.

Method and apparatus for controlling startup of RTS / CTS mechanism is provided. The method includes: obtaining a noisy level of a channel based on the number of first data received by a first terminal in a first period, where the first terminal is a STA or an AP in a wireless network, and the first data include aggregation frames or non-aggregation frames; and if the noisy level is greater than or equal to a noisy level threshold, controlling the first terminal to start up the RTS / CTS mechanism when data is transmitted in a second period which is following and adjacent to the first period along a time axis. The noisy level of the channel may be obtained in real time, and the RTS / CTS mechanism may be controlled to be started up reasonably in real time, so that channel resources is utilized sufficiently, and a throughput rate is improved.

The embodiment of the invention discloses a warning report method and a relevant device. By acquiring usage state of a first public resource, if the usage state of the first public resource meets a preset warning rule, a piece of warning information is generated, wherein the warning information comprises identification information of the first public resource and example information generated by the usage state of the first public resource that influences examples. The influenced example is an error example, so that a user can acquire the mark of the example influenced by the public resource that has an error because of the error, based on the warning information, and the user can understand the type of the public resource that has an error and the type of the example influenced by the public resource that has the error. Therefore, human resource and material resource are saved; complex work is reduced, which includes finding the public resource that has an error after receiving the warning information, and finding the type of the example that is influenced by the public resource that has an error; maintenance efficiency is lifted; and communication efficiency of the communication system is guaranteed.

The invention discloses a communication system and communication method for a household electrical appliance and the household electrical appliance. The communication system comprises a plurality of slave modules, wherein each slave module is equipped with a communication interface, and each communication port is equipped with a receiving end and a transmitting end; and a host module, wherein thehost module is equipped with a communication interface, and the communication port is equipped with the receiving end and the transmitting end. The receiving ends in the communication interfaces of the plurality of slave modules are connected with the transmitting end in the communication interface of the host module. The transmitting ends in the communication interfaces of the plurality of slavemodules are connected with the receiving end in the communication interface of the host module. The host module is used for transmitting broadcast messages to the plurality of slave modules when a system is changed, transmitting triggering messages to the plurality of slave modules and receiving feedback messages fed back by at least one slave module in the plurality of slave modules. On the premise of not improving the production cost, the networking communication between the single host and the plurality of slaves is realized, moreover, the event type communication among the modules is established at the same time, and the communication efficiency is ensured to the greatest extent.

The invention relates to the communication field and discloses a communication treatment method and a device. The method comprises the steps of judging running state of a business program and switching on bypass communication when the running state of the business program is abnormal. The method further can switch off the bypass communication when time for switching on the bypass communication reaches preset opening time. The preset opening time is adjusted according to times of switching on the bypass communication within preset adjustment time. On the other hand, the invention discloses a communication treatment device. The communication treatment method and the device can quickly and effectively realize control function of the bypass communication when the whole communication system has abnormalities.

The embodiment of the invention discloses an equipment heartbeat interval control method and device, Internet of Things equipment and a storage medium, and the method comprises the steps that the Internet of Things equipment obtains at least one reference heartbeat value from a server, and determines a first heartbeat interval according to the at least one reference heartbeat value, the at least one reference heartbeat value at least comprises a reference heartbeat minimum value, and the reference heartbeat minimum value is a device heartbeat interval minimum value preset by the server; a current target working state is determined, the target working state is one of multiple working states, and the multiple working states at least comprise the working state with user operation and the working state without user operation; according to the first heartbeat interval and the reference heartbeat minimum value, a second heartbeat interval in the target working state is determined, a heartbeat packet is sent to the server at the second heartbeat interval, and the second heartbeat interval in the working state of user operation is smaller than the second heartbeat interval in the working state without user operation.

The invention relates to a vehicle-mounted ad hoc network routing decision-making method in a hybrid network mode, a vehicle-mounted ad hoc network comprises a traffic road structure, vehicles and RSUs, a plurality of RSUs in wired communication connection in pairs are deployed in the traffic road structure, and the method comprises the following steps: 1) abstracting the traffic road structure into a directed graph; 2) obtaining vehicle driving data, and constructing a vehicle node moving behavior model; 3) acquiring two vehicles needing to communicate; 4) selecting candidate nodes and constructing a final communication link based on the communication range of each node, if the candidate nodes cannot be acquired, constructing the final communication link through the RSU, and if the RSU cannot be acquired, outputting a result that the destination node cannot communicate; in the step 4), the candidate node selection process comprises the step of eliminating unstable nodes possibly exceeding the node communication range in the future. Compared with the prior art, data packet transmission of a wired and wireless hybrid network is provided, and the reliability, low time delay and high efficiency performance of the vehicle-mounted ad hoc network are improved.

The invention discloses equipment for filtering interference in a communication line in an electromagnetic compatibility test, and belongs to the field of electromagnetic compatibility test detection. The equipment is composed of an input system and an output system which are symmetrical, the two systems are connected through an optical fiber connected with a photoelectric switch, the input system adopts a metal frame and is grounded, and an output system shell adopts an insulating material and is suspended. According to the invention, through a plurality of anti-electromagnetic compatibility conducted interference means, electromagnetic interference which is disturbed to a communication line in a test process is filtered and completely isolated, the safe operation of a computer and the network communication efficiency in an electromagnetic compatibility test environment are effectively ensured, and a reliable communication basis is provided for a final electromagnetic compatibility test result.

The invention discloses a hardware structure of a radio frequency transceiver, realizing two-way communication and relay functions. A single chip microcomputer ATMEGA16L-8AI is connected with a radio frequency wireless module through a slot interface CON11 and realizes the receiving or transmission of a radio frequency signal through the setting of RX or TX working mode of the module. The equipment address of the radio frequency communication is of 8-bit; wherein, the former 4-bit is of the equipment type address and is set by the software; while, the last 4-bit is of the equipment address and is set by the read dial switch state of the single chip microcomputer. The single chip microcomputer realizes the radio frequency control or relay function through the slot interface CON2 by the short connection or disconnection of the two pins of the slot with a jumper. The invention simultaneously realizes the radio frequency wireless module protocol of the radio frequency transceiver and the RS485 network protocol. With the adoption of a plurality of slots with corresponding sockets, the invention accesses or extends the function module by a plug-in type, which is easy and feasible and is able to realize the procedure downloading to update the processs of the microprocessor.