105results about How to "Ensure communication reliability" patented technology

An imaging apparatus for performing wireless communication with a flash device, including a generation unit configured to generate a plurality of emitting instructions which include timing information indicating a timing for emitting the flash device, wherein each emitting instruction includes different timing information, and a transmission unit configured to successively transmit the plurality of emitting instructions to the flash device, wherein the transmission unit transmits each emitting instruction in succession based on the timing information.

The invention discloses a system for achieving high-speed communication and wireless energy transmission on basis of public inductive coupling. The system comprises a powering unit and a powered unit, wherein the powering unit comprises a power transmission module and a communication signal receiving module, and the powered unit comprises a power receiving module and a communication signal emitting module; the power transmission module is coupled with the power receiving module on the basis of public inductance; the power transmission module is coupled with the communication signal receiving module, the power receiving module is coupled with the communication signal emitting module, and power transmission and communication signal transmission are based on different kinds of transmission frequency. Compared with a traditional wireless energy transmission circuit without a communication function, the system has the advantages that the communication function is increased, meanwhile, cost and the size are basically not increased, and a control mode of the traditional wireless energy transmission circuit is not changed; the communication speed is high.

The invention discloses a self-networking method for wireless routing Internet of things, which comprises the following steps of: automatically networking, path repairing and problematic routing node reporting, and frequency hopping anti-interference, wherein the step of automatically networking is divided into two processes of network center coordination point networking and accessing network by routing nodes. The self-networking method for the wireless routing Internet of things solves the problems that the conventional point-to-point transmission only can form a starlike structure, the transmission range is limited to the effective communication range of the module and the distance is limited, and solves the problems that a route cannot be updated timely, obvious defects of the communication effect are present in the stability and reliability, and the installation and maintenance are inconvenient in the routing method of manually specifying the route under the condition that the wireless signal is deteriorated or the node is damaged.

The invention discloses an achievement method of a multi-antenna unmanned aerial vehicle system. The multi-antenna unmanned aerial vehicle system is characterized by comprising a remote control terminal, an unmanned aerial vehicle terminal and a mobile communication network, wherein the unmanned aerial vehicle terminal comprises a processor, a 3G / 4G communication module, a WIFI communication module and a Bluetooth communication module. By arranging the 3G / 4G communication module, the WIFI communication module and the Bluetooth communication module and setting the selection priority of communication modes, the problem that an unmanned aerial vehicle is simple in communication mode in the prior art is overcome, connection of the unmanned aerial vehicle and the remote control terminal in multiple communication modes is achieved, the communication modes can be freely switched at different distances and in different environments, and the communication stability and reliability of the unmanned aerial vehicle terminal and the remote control terminal are effectively guaranteed. The achievement method can be widely applied to various unmanned aerial vehicle systems.

A battery ECU provides an N-th arithmetic processing device with an ID assignment signal. The N-th arithmetic processing device receives the ID assignment signal, and stores an ID that is transmitted by the battery ECU. The battery ECU provides an i-th arithmetic processing device (i is a natural number from N to 2) with a command for providing an ID assignment signal. The i-th arithmetic processing device provides the (i−1)-th arithmetic processing device with the ID assignment signal in response to the command for providing an ID assignment signal. The (i−1)-th arithmetic processing device receives the ID assignment signal, and stores an ID that is transmitted by the battery ECU.

The invention provides a secure computer platform used for a rail transit. The secure computer platform used for the rail transit comprises a first host device, at least one second host device, a first communication transfer device, at least one second communication transfer device, a first input / output device, at least one second input / output device, an Ethernet and a FlexRay bus, wherein the first input / output device, the second input / output device, the first network connection end of the first communication transfer device and the third network connection end of the second communication transfer device are connected with the FlexRay bus, the second network connection end of the first communication transfer device and the fourth network connection end of the second communication transfer device are connected with the Ethernet, the first host device and the first input / output device are communicated through the Ethernet, and the second host device and the second input / output device are communicated through the Ethernet.

The invention relates to a lowered acoustic Doppler current profiler (LADCP) with an acoustic telemonitoring function, wherein, an underwater acoustic communication technology is adopted to transmit the data of depth and height from the bottom of an LADCP suspension system in real time to a water surface control unit by code and decode with code division multiple access for monitoring the positionin water of the suspension system in real time. The lowered acoustic Doppler current profiler comprises an underwater main body part and a water surface telemonitoring part; a master LADCP is internally provided with a communication encoding module, wherein, the master LADCP circularly measures a current profile at fixed time and obtains the height to the bottom according a bottom tracking resultand a depth value by a pressure sensor at the same time; the communication encoding module carries out CDMA code modulation on the height value and the depth value and then outputs the values by a high-speed DA every 1-10s or so, preferably 5s, and emits out the values through a watertight cable and an underwater acoustic communication transmitter; and the underwater acoustic communication transmitter at a water surface telemonitoring part carries out amplification, automatic gain control and filtration on the received signal and then sends the signal to a deck unit through a Kevlar cable.

The invention discloses an optical fiber Ethernet intelligent branching unit switching method based on an FPGA. The method includes the following steps that first, the current working state of an optical fiber Ethernet intelligent branching unit is set to be a main-use link state K2; second, when a main-use device breaks down or the bit error rate of the optical fiber Ethernet intelligent branching unit exceeds a set threshold value, the third step is executed, and otherwise, the first step is executed; third, the working state of the optical fiber Ethernet intelligent branching unit is switched to be a standby link state K3 through an active switching mode or a passive switching mode; fourth, when faults of the main-use device are removed and the bit error rate of the optical fiber Ethernet intelligent branching unit is within the set threshold value range, the current working state of the optical fiber Ethernet intelligent branching unit is switched to the main-use link state K2 from the standby link state K3; fifth, the first step, the second step, the third step and the fourth step are repeatedly executed. The method has the advantages that the stability of key network equipment can be maintained, and the defects in an original single technology application are overcome.

The invention relates to vehicle Ethernet based electric automobile distributed annular communication network architecture including two annular local area networks that are in independent communication and having different functions. In said network architecture, a vehicle controller (1) acts as a common node of the annular local area networks. The vehicle controller (1) is provided with a plurality of interfaces. Each interface is corresponding to an annular local area network. Compared with the prior art, synchronous operation of the annular communication networks can be realized. The operation direction of each annular local area network includes a clockwise direction and an anti-clockwise direction, so that communication reliability is guaranteed. A steering control system and a brake control system are both redundant structures, so that reliability and reliability are ensured. Data transmitted in the first annular local area network has byte limitation and redundancy and the data is transmitted in a forward sequence and a reverse sequence in the clockwise direction and the anti-clockwise direction. Whether the transmission process goes wrong or not is judged timely, so that real time performance and reliability are ensured.

The invention discloses an on-chip communication method and an on-chip communication device of an integrated circuit based on an asynchronous structure. The structure comprises the following steps of 1, directly connecting main equipment to each auxiliary equipment request interface by a request bus in advance, sequentially and serially connecting a plurality of auxiliary equipment response interfaces to form an auxiliary equipment response chain in advance, and connecting the auxiliary equipment response interface on the head of the auxiliary equipment response chain with a main equipment response interface; and 2, when the main equipment communicates with the auxiliary equipment, receiving a request message consisting of a plurality of micro-packets from the main equipment by the auxiliary equipment through the request bus, and sending a response message consisting of the micro-packets to the main equipment by the auxiliary equipment through the auxiliary equipment response chain. The device comprises the main equipment and the auxiliary equipment, wherein the main equipment is directly connected with each auxiliary equipment through the request bus, the auxiliary equipment are sequentially and serially connected to form the auxiliary equipment response chain, and the auxiliary equipment on the head of the auxiliary equipment response chain is connected with the main equipment. The method and the device have the advantages that the number of long signal lines is little, the occupation of hardware resources is little, and the expandability is good.

The invention discloses an insulation online state monitoring device of a zinc oxide arrester. The insulation online state monitoring device comprises a temperature and humidity sensor, a composite monitoring sensor and a monitoring terminal. The monitoring terminal comprises a central control circuit, a power circuit, a signal acquisition circuit, an AD conversion circuit, a warning drive circuit, a buzzer and a monitoring state identification module. The power circuit, the AD conversion circuit, the warning drive circuit and the monitoring state identification module are all connected with the central control circuit. The signal acquisition circuit is connected with the central control circuit through the AD conversion circuit. The buzzer is connected with the central control circuit through the warning drive circuit. The signal acquisition circuit comprises a voltage analog signal acquisition and amplification circuit and a current analog signal acquisition and amplification circuit. The power circuit comprises a switching power circuit and a buck circuit module. The insulation online state monitoring device of the zinc oxide arrester has the advantages that the total leakage current and other parameters of the zinc oxide arrester can be monitored in real time, and lightning arrester accidents can be reduced.

The invention provides a method for obtaining timing advance information, a feedback method, a terminal and a base station, which relate to the technical field of communication. The method for obtaining timing advance information is applied to a terminal. The method comprises the following steps: sending a random access message to a base station on a target beam; receiving timing advance TA information corresponding to the target beam fed back by the base station according to the random access message. The scheme avoids the problem that TA information of multi-beam can not be distinguished bycorresponding TA information with beam, ensures the terminal to obtain accurate uplink synchronization, and ensures the communication reliability of NR system.

The present invention relates to the technical field of communications. Disclosed are an SDN controller, a data centre system and a router connection method, so as to solve the technical problem in the prior art that a data centre network cannot complete the recovery of communication faults. The SND controller comprises: a receiver used for receiving a routing calculation request sent by an end-point device manager, the routing calculation request carrying information about end-point devices of both communication parties on which routing calculation needs to be conducted; and a processor used for conducting routing calculation on the end-point devices of both communication parties on which routing calculation needs to be conducted, and controlling a forwarding device to conduct router connection on the end-point devices of both communication parties according to the calculated routing information.

The invention discloses a Beidou satellite system-based tide level data transmission and control method. The Beidou satellite system-based tide level data transmission and control method comprises a data acquisition process and a data processing and publishing process, wherein the data acquisition process comprises the following steps of: sending a tide level data analog signal collected by a collector to a data A / D (Analog to Digital) converter, converting the tide level data analog signal to a digital signal through the A / D converter, and transmitting the digital signal to a first Beidou communication receiver; the data processing and publishing process comprises the following steps of: sending tide level data to a Beidou communication director of a control unit by the first Beidou communication receiver based on the Beidou satellite system; transmitting the data to a PC (Personal Computer) by the Beidou communication director; carrying out filtering, curve plotting and processing on the tide level data by the PC; generating a standard chart according to daily production requirements; connecting the Beidou communication director with the PC; determining a working state according to a tide level curve; and finally publishing the processed data to the public based on the Beidou satellite system. The Beidou satellite system-based tide level data transmission and control method is not restricted by a transmission distance, is capable of realizing efficient dispatching management of construction ships and improving the dredging construction efficiency.

The invention discloses a system for realizing a double mode vehicular terminal and a method thereof, which are combined with the characteristic of a cross-site coverage way. A mobile terminal of a locomotive platform adopts a double mode way, and is connected with a main layer network and a back layer network at the same time respectively, and selects a better signal transmission channel according to level, quality and other performances of a received signal so as to achieve the aims of sufficiently using wireless resources of the double-layer network and improving the transmission reliability, thereby solving the problem that a weak field on an overlap region between two adjacent base stations in the main layer easily causes communication interruption when cell switching is carried out in the main layer in the prior art.

The invention discloses a method, device and system for acquiring a multi-address message, which belongs to the communication field and solves the problem that the communicating quality between a media gateway and a media gateway controller is influenced because the media gateway can only acquire one IP address corresponding to the media gateway controller through domain name resolution (DNS) and SCTP (Stream Control Transmission Protocol) coupling can not be established between the media gateway and the media gateway controller. The technical scheme of the invention comprises the steps of: receiving DNS request messages sent by the media gateway, obtaining more than two address messages corresponding to the media gateway controller according to the domain name of the media gateway controller, carried in the DNS request messages, and generating DNS response messages according to the more than two address messages, and sending the DNS response messages to the media gateway. The method, the device and the system for acquiring the multi-address message, which are provided by the invention, can be applied to communication between the media gateway and the media gateway controller.

In a radio receiver including an aerial wire (1) that receives a radio signal in which a transmission signal is superimposed on a carrier, a (VCXO 2) that oscillates a local oscillation signal, a frequency multiplier (3), and a demodulation circuit that demodulates the transmission signal on the basis of the radio signal and the local oscillation signal, an oscillation frequency control circuit that repeatedly sweeps the frequency of the local oscillation signal over a frequency bandwidth that is equal to or more than the width of a frequency drift in a carrier frequency from the aerial wire (1) or over a frequency bandwidth that is equal to or more than the width of a frequency drift in the local oscillation signal is provided.

The invention discloses a networking method of a micropower wireless communication network. The micropower wireless communication network comprises a center node and a plurality of sub-nodes. The method comprises the following steps: the center node emitting a networking message of a first jump; confirming that a sub-node of the first jump is accessed to the network; performing networking compensation of the first jump; next, the center node emitting a networking message of a second jump; the center node emitting a networking message of a third jump; and finishing the rest in the same manner, and the center node emitting a networking message of a z-th jump. A network formed by use of the networking method provided by the invention is quite good in reliability.

The invention provides a non-continuous frame sending method and a channel compensation method which are applied to a power-line carrier communication system based on OFDM. The non-continuous frame sending method comprises sending a specific non-continuous frame, wherein cyclic prefixes are added to the precursor OFDM symbol and the data OFDM symbol of a subframe in the non-continuous frame. The channel compensation method carried out channel estimation and compensation by means of the specific non-continuous frame in order to eliminate influence of zero crossing point jitter.

An imaging apparatus for performing wireless communication with a flash device, including a generation unit configured to generate a plurality of emitting instructions which include timing information indicating a timing for emitting the flash device, wherein each emitting instruction includes different timing information, and a transmission unit configured to successively transmit the plurality of emitting instructions to the flash device, wherein the transmission unit transmits each emitting instruction in succession based on the timing information.

The invention discloses a public community charging pile data concentrator with a dual-network complementary function and an application method of the data concentrator. The data concentrator comprises a main control board, an LED (light-emitting diode) display screen, an uplink communication module, a downlink communication module, a storage module, an intelligent electric meter, a keyboard, an entry and exit processing module, an LED indication lamp and an equipment maintenance port, wherein the LED display screen, the uplink communication module, the downlink communication module, the storage module, the intelligent electric meter, the keyboard, the entry and exit processing module, the LED indication lamp and the equipment maintenance port are respectively connected with the main control board. The data concentrator communicates with charging piles in a community by a micro-power wireless module, so that the communication fee of each charging pile is saved, the communication cost of a whole electric vehicle operation network is reduced, communication links capable of directly accessing into a background of an electric vehicle operation management system are reduced, and the running speed of the background of the system is increased.

The invention provides a local area network switch system and a pluggable gigabit passive optical network optical network unit GPON ONU for the local area network switch system. The pluggable GPON ONU comprises a bidirectional optical transceiver, an ONU chip, a WAN (Wide Area Network) interface processing module, a power processing module, a management interface module and a WAN interface connector. The pluggable GPON ONU can be directly inserted into a WAN interface of a router, so that a network cable is saved, and the router can provide uplink and downlink of the GPON; meanwhile, the pluggable GPON ONU and the router share a power supply, so that the size and the power consumption are relatively small, and convenience and energy conservation are realized.

The invention discloses a relay network deployment method and a device, which relate to the technical field of unmanned aerial vehicle communication. The invention is used for solving the problem thateach unmanned aerial vehicle can not communicate normally in large-scale application due to the communication broadband limitation in the prior art. The method comprises the following steps: when thecontrol center is not located within the communication radius of the unmanned aerial vehicle, and / or the control center is unable to meet the requirement of the communication bandwidth of the unmanned aerial vehicle for executing the task, determining that the unmanned aerial vehicle and the control center are not communicable; determining a relay node located within the communication radius of the unmanned aerial vehicle and satisfying the relay condition as a first relay node of the unmanned aerial vehicle, wherein the relay condition is that the communication bandwidth of the UAV is smaller than the minimum available bandwidth of the relay node, and the number of relay nodes on the link of the UAV to the control center is larger than the number of relay nodes on the link of the relay node to the control center; updating the remaining communication bandwidth available to the first relay node and the control center according to the communication bandwidth of the unmanned aerial vehicle.

The invention discloses charging piles for wireless carrier dual-network complementation of public communities and the application method thereof. The charging piles comprise main control boards, opening-in and opening-out processing modules, measurement processing modules, printing modules, intelligent electric meters, keyboards, CAN data interfaces, intelligent card reading-writing modules, cameras, LED display screens and communication modules. The application method solves the problem that the large scale of charging piles are accessed in an electric vehicle background in the public communities. Through the application method, the data interaction can be implemented between the charging piles and the electric vehicle background through two free communication methods of radios and carriers, so that the expensive communication cost is reduced, and the influence to the communication quality from peripheral interference sources or other same-frequency-band wireless signals is effectively avoided.

The invention relates to the field of robots, and discloses a demonstrator remote control method and a demonstrator. According to the demonstrator remote control method and the demonstrator, direct point-to-point wireless connection between a demonstrator and a control robot is established, and two error correction control algorithms are combined so as to realize control of a demonstration robot. With application of the demonstrator remote control method, the cable constraint between the demonstrator and the robot can be eliminated, wiring can be simplified and the reliability and the real-time performance of information transmission can be guaranteed.

The application discloses an article searching method and related equipment. The article searching method applied to an electronic device includes the following steps that: wireless communication connection with a target article is established, wherein the electronic device and the target article include at least one of wireless radio frequency transceiver modules including a LoRa module, a Sigfoxmodule and a Bluetooth 5.0 module; a distance changing trend between the electronic device and the target article is determined by one wireless radio frequency transceiver module of the electronic device and one wireless radio frequency transceiver module of the target article, wherein the one wireless radio frequency transceiver module of the electronic device and one wireless radio frequency transceiver module of the target article are same; and a target content is determined based on the distance change trend and the target content is outputted, wherein the target content is used for prompting a relative positional relationship between the electronic device and the target article. Therefore, the efficiency of finding an article is improved.

The invention discloses a method for reducing service loss in interworking between SS7 signaling network and M3UA. In the method, when state of an M3UA ASP-related signaling point changes, the SS7 signaling network may be notified by using messages defined in existing protocols or other messages. Thus, when performing service interworking with M3UA, the SS7 signaling network determines whether service interaction may be performed with M3UA in accordance with the state of current ASP-related signaling point. If the current ASP-related signaling point is unavailable, the SS7 signaling network will not perform service interaction. As a result, the service loss in interworking between SS7 signaling network and M3UA may be reduced without any affect on the normal service interworking between SS7 signaling network and M3UA. In addition, the method may conform to existing protocol standards, and implemented in a simple and easy way.

The invention provides an auxiliary information reporting method and device and communication equipment, and belongs to the technical field of wireless communication. The auxiliary information reporting method is applied to user equipment and comprises the steps that semi-persistent resource auxiliary information corresponding to a periodic data flow is reported to network side equipment, and thesemi-persistent resource auxiliary information is used for the network side equipment to reserve semi-persistent resources for the periodic data flow. The technical scheme of the invention can assista network side in reserving proper semi-persistent resources.

The invention discloses a service registration discovery method, system and device, and a medium. In the service registration discovery method, a server side registers and records an effective communication address of the server side into an intermediate server in advance. Therefore, when a user side and the server side carry out data interaction currently available server information of the server side is acquired through the intermediate server. Therefore, in a scene that the server end is frequently changed in network service, operation and maintenance personnel do not need to frequently modify a configuration file of each user side and restart the whole network service, so that communication reliability between servers is relatively ensured, and the overall stability of the network service is ensured. In addition, the invention also provides the service registration discovery system, equipment and a medium, which have the same beneficial effects.