62results about How to "Reduce Communication Interference" patented technology

The invention relates to a portable narrow band satellite communication device. The portable narrow band satellite communication device comprises an indoor unit (IDU) and an outdoor unit (ODU), wherein the IDU comprises an IDU small terminal, a video encoder, a user operation panel, a satellite searching device, a voice access gateway, a power splitter and a power supply system, and the ODU comprises a low-noise block downconverter (LNB), a block-up converter (BUC), connecting cables, a duplexer antenna and an image acquisition device. Further, a tablet personal computer (PC) is arranged, thetablet PC is connected with a back-bearing case through a network interface (RJ45), and therefore audio transmission and video transmission are achieved. The portable narrow band satellite communication device has the advantages of being compact in structure, convenient to carry, easy to operate, fast in deployment, little in communication jamming, good in confidentiality and the like.

The invention provides a data communication device and a data communication method. The data communication device comprises a news generation module used for generating broadcast news and a data interaction module used for transmitting broadcast news. The broadcast news includes one or a plurality of business general information identifications, and values of the business general information identifications show relative information of sender business. The data interaction module is used for transmitting the broadcast news. By means of the data communication device and the data communication method, a device as a sender can inform business generation information to enable a device as a receiver to be capable of judging whether to develop business with the sender according to the general information, and the device and the method ensure power saving of a terminal and reduce communication interference between the devices.

The invention discloses a resource distribution method for a relay network with energy harvesting nodes based on a QoS demand and belongs to the technical field of wireless communication. According to the method, a relay network system is employed. The system comprises a sending end, a receiving end and a relay node. The sending end and the relay node can harvest energy and communicate through utilization of the harvested energy. In communication at the relatively long distance, in order to improve the communication security and reliability and reduce the problems such as the communication interference, a relay technology is employed. According to the resource distribution method for the relay network researched by the invention, the energy harvesting and the relay technology are combined, system resources namely subcarriers and the power are jointly distributed, so the effective capacity is maximized in the communication process of the relay network, and the communication performance is improved.

The invention discloses a trusted energy-saving data convergence method for a wireless sensor network. The method comprises the following steps of: cluster head election, cluster migration and sensor node clearing-up, wherein all uncovered nodes are taken as cluster head nodes or become multi-hop member nodes of other clusters through neighbor nodes to finish node convergence. By the energy-saving data convergence method, the energy load of the whole network is equally allocated to each sensor node, and simultaneously, a data convergence technology is utilized to reduce energy consumption, eliminate data redundancy and increase available information streams from a source node to a base station, thereby fulfilling the aim of prolonging the service life of the whole network.

The invention discloses a Gabriel graph-based data communication method of a wireless sensor network. With the method adopted, the problems of energy waste and communication interference caused by node transmission power unification and inadequate consideration for node load balancing in the prior art are solved. An implementation of the invention comprises the steps of carrying out a topology control on a network by combining a Gabriel graph on the basis of maximum power topology MPG, adjusting node transmission power, updating a neighbor node set and obtaining a candidate node set, forming a data communication network topology, then introducing a roulette wheel selection method according to a new path cost, transmitting data through multiple hops to a convergent node sink by the means of probabilistic routing, and maintaining the data communication topology in time once a network node dies or moves so as to ensure that the network continues running. The data communication method provided by the invention can effectively improve energy efficiency of the entire network, reduce node communication interference, prolong survival time of the network, and be used in large scale wireless sensor networks.

The invention discloses a communication interference suppression method suitable for a plurality of transmitting ends of a wireless charging system. The wireless charging system comprises a power supply, the power supply supplies power to the plurality of transmitting terminals, and each transmitting terminal communicates with a receiving end performing electric energy transmission with the same through amplitude modulation waves, and the working frequency bands of the different transmitting terminals for performing amplitude modulation wave communication are different from each other. By adoption of the communication interference suppression method suitable for the plurality of transmitting ends of the wireless charging system, the communication interference between different charging subsystems is greatly reduced, the communication interference problem between different transmitting terminals is solved just in a software processing mode without adding any peripheral hardware, so thatthe cost is reduced, and the operation is reliable.

The present invention discloses a method for mounting near field communication antenna of an electronic terminal equipment which comprises of: determining frame at the inner side of rear cover of electronic terminal equipment, the inside of frame has identical dimension with antenna, and the height of frame is higher than thickness of antenna; adhering antenna on field around by frame. The present invention discloses antenna protection device also, the frame at the inner side of rear cover of electronic terminal equipment has identical shape to antenna, the inside of frame has identical dimension with antenna, and the height of frame is higher than thickness of antenna. The present invention can direct mounting position of NFC antenna by frame on the rear cover of electronic terminal equipment, avoid position error when mounting antenna on rear cover. In additional, the added Fe oxide layer and / or protection cover, can reduce extrusion and fray of antenna, and reduce communication disturb, enhance the reliability of antenna.

The invention discloses a communication method, device, apparatus and system of a double-wireless Bluetooth communication network. The method comprises the steps of creating a first Bluetooth link with a Bluetooth sound source device, wherein in the first Bluetooth link, a Bluetooth playing master device serves as a network master device for controlling the communication process of a dual-wirelessBluetooth communication network, and the Bluetooth sound source device and a Bluetooth playing slave device serve as network slave devices of the dual-wireless Bluetooth communication network; sending an audio data request instruction to the Bluetooth sound source device through the first Bluetooth link, and based on the audio data request instruction, sending an audio data packet to a Bluetoothplaying master device and a Bluetooth playing slave device in the dual-wireless Bluetooth communication network by the Bluetooth sound source device; and keeping the state of not sending the audio data request instruction to the Bluetooth sound source equipment before the requirement of retransmitting the audio data packet exists. The problems of bandwidth waste and high power consumption caused by always sending data when the Bluetooth sound source device is used as a network main device are avoided.

The invention discloses a reliable wireless sensor network data transmission method based on a Chinese remainder theorem. The method comprises the following steps: dispersing nodes randomly, performing topology control on a network in combination with a Gabriel graph on the basis of a UDG (Unit Disk Graph), adjusting the node transmitting power, and updating a neighbor node set to form a network data communication topology; performing linear encoding on a data packet to be transmitted, encoding data into a plurality of linearly-irrelevant data, partitioning the data into small sub-data packets by adopting the Chinese remainder theorem, transmitting the sub-data packets to a sink node by adopting a minimum hop routing algorithm along multiple paths, merging the partitioned data through the sink node, and decoding the encoded data. The data communication method disclosed by the invention is easy to implement, the service efficiency of network energy can be increased effectively without any complex route protocol, the occurrence of network congestion is reduced, the encoding effect is brought into full play, and data can be reliably transmitted to the sink node; the method can be applied to large-scale wireless sensor networks.

The invention provides a method and device for determining a positioning area, and relates to the technical field of positioning. The method comprises the following steps of: Within a particular timeslot, through a plurality of positioning base stations corresponding to a specific area, acquiring first positioning information of a positioning terminal corresponding to the specific time slot, determining first position information of the positioning terminal based on the first positioning information, and determining whether the positioning terminal is in the specific area based on the first position information of the positioning terminal and the position information of the plurality of positioning base stations. The accuracy of determining the area where the positioning terminal is located can be improved, and the number of the positioning terminals in the positioning area can be determined in the same scene.

The invention relates to a power supply unit of an elevator car, which comprises an elevator running power generator for converting kinetic energy generated from the up and down movement of the elevator car into electric energy and also comprises an electric energy control device and an energy storage unit which are electrically connected with the elevator running power generator in sequence, wherein the electric energy control device is also electrically connected with an elevator car power consuming unit, and the elevator running power generator is a diversion sheave arranged on the top of the elevator car and having the function of generating power by cutting a magnetic line of force during rotation. Compared with the prior art, the invention reduces a part of traveling cables for delivering electric power to the elevator car, reduces communication jamming caused by the hybrid transmission of strong current and weak current, improves the reliability of a controlled signal, and reduces the energy consumption.

There is provided a communication apparatus and a communication system that reduces communication interference in inter-vehicle communication by considering the emergency degree of the environment around a vehicle and the accident incidence rate in each traveling scene and that raises the communication quality of high-emergency-degree data. The communication apparatus has a communication unit that has a power setting unit and performs inter-vehicle communication and a control unit that has a vehicle information acquisition unit for acquiring vehicle information and a reference vehicle position estimation unit for estimating the present position of a reference vehicle and controls the communication unit; when high-emergency-degree information of the reference vehicle is transmitted by use of vehicle information, the control unit controls the communication unit in such away that transmission is performed with increased transmission power.

The embodiment of the invention discloses a communication interference adjustment control method and a related product. An electronic device comprises a processor, a point-to-point communication chipand a target communication chip. The processor is connected with the point-to-point communication chip and the target communication chip, and the target communication chip comprises a cellular networkCell chip or a wireless high-fidelity Wi-Fi chip. The method comprises the following steps: when an electronic device detects that the point-to-point communication chip and the target communication chip are started at the same time, starting the point-to-point communication chip; judging whether the point-to-point communication chip and the target chip generate communication interference or not;if the electronic device judges that the point-to-point communication chip is in communication interference with the target chip, switching the point-to-point communication chip to the target chip; ifso, acquiring the first communication frequency of the point-to-point communication chip and the second communication frequency band of the target communication chip, adjusting the first communication frequency in the current communication frequency band of the point-to-point communication chip to reduce communication interference. The communication interference can be adjusted and controlled intime, and the efficiency and accuracy of communication interference adjustment and control can be improved.

An embodiment of the invention provides an unmanned aerial vehicle communication method and an unmanned aerial vehicle. The method comprises the steps of monitoring a broadcast signal transmitted fromthe external unmanned aerial vehicle in at least one frequency point which is preset, wherein the broadcast signal comprises channel information of the external unmanned aerial vehicle (S201); determining the working channel of the unmanned aerial vehicle according to the monitored broadcast signal (S202); and performing communication by the unmanned aerial vehicle by means of the working channel(S203). Through monitoring the broadcast signal, automatic optimized selection of the frequency point is realized, and frequency point selection efficiency is improved. According to the monitored broadcast signal, the working channel of the unmanned aerial vehicle is determined, thereby better preventing communication frequency point conflict and reducing communication interface of the unmanned aerial vehicle.

The embodiment of the invention provides a data communication method and device and belongs to the technical field of data communication. The method comprises the steps of obtaining first measurementdata which is collected by each terminal device in a low power consumption state and is transmitted by each terminal device in M terminal devices when the M terminal devices are in a communication state capable of carrying out data transmission with a gateway device and N terminal devices are in the low power consumption state incapable of carrying out the data transmission with the gateway device; and obtaining second measurement data which is collected by each terminal device in the low power consumption state and is transmitted by each terminal device in the N terminal devices when the M terminal devices are in the low power consumption state and the N terminal devices are in the communication state. Data collection is carried out on X terminal devices by the gateway device in batches,so the load of the gateway device is effectively reduced. The terminal devices not carrying out the data collection are in the low power consumption state, so the power consumption when the X terminaldevices carry out the data communication is effectively reduced.

The invention discloses a method for drop point selection and capacity configuration of a flexible DC back-to-back device. The method includes: determining an initially configured line of the flexibleDC back-to-back device by calculating the power transmission capacity of a dual-dual channel cross-section after configuration of the flexible DC back-to-back device; determining the determined configuration line and capacity of the flexible DC back-to-back device by calculating the short-circuit current of busbars on both sides of the dual-dual channel section after configuration of the flexibleDC back-to-back device; and determining the configured busbar side of the flexible DC back-to-back device by calculating the voltage sensitivity of the busbars on both sides of the dual-dual channelcross-section after configuration of the flexible DC back-to-back device. By constructing a flexible DC back-to-back device at a certain side busbar of the existing dual-dual loop cross-section, cross-section tidal current distribution can be optimized, the overall power transmission capacity can be improved, and the short-circuit current of the busbars on both sides of the cross-section can be reduced, and the auxiliary voltage reactive power support capability can be provided.

The invention belongs to the technical field of wireless communication, and particularly relates to a channel sharing method based on primary and secondary matching search in a VDES system, and the method comprises the following steps: initializing channel sharing; utilizing a channel sharing algorithm based on primary and secondary matching search to carry out channel sharing matching search on information sending requests from the satellite to the ship and from the ship to the ship; and sending the information according to the channel sharing matching result of the satellite-to-ship and ship-to-ship information sending requests. Compared with the existing random channel sharing method, the method provided by the invention takes a satellite-to-ship information sending request as a main user and a ship-to-ship information sending request as a secondary user to perform matching search of the shared channel of the main user and the secondary user, so that the main user and the secondary user of the shared channel both meet the requirement of receiving the signal to interference plus noise ratio. Therefore, the method provided by the invention can reduce the communication interference and improve the quality of the received signal.

The invention discloses a wireless data transmission method and relates to the technical field of wireless data communication. The method comprises the steps of S1, establishing layer-by-layer transmitting wireless data communication links between a monitoring center and multilayer terminal nodes, wherein the monitoring center is in wireless connection with a first layer of terminal nodes, and each superior terminal node is in wireless connection with at least one subordinate remote terminal node; S2, setting a communication frequency of each terminal node; and S3, receiving data messages by each terminal node, and forwarding the data messages, wherein the uplink data messages are directly placed into uplink queues for waiting to be sent, after target terminal nodes of the downlink data messages are determined, the data messages are added to downlink queues for waiting to be sent. According to the method and the system, remote wireless data communication between the terminal nodes and the monitoring center can be realized, the communication interference can be reduced, and the stability of the communication links is ensured. The invention also discloses a wireless data transmission system.

The invention discloses a data processing method and electronic equipment, and belongs to the technical field of communication. The method comprises the steps of obtaining a pre-stored first data code; generating a periodic pseudo-random sequence according to the first data code; encrypting a second data code to be sent according to the pseudo-random sequence to obtain a third data code; and obtaining a mobile industry processor MIPI data code based on the third data code. According to the embodiment of the invention, the frequency spectrum peak generated by the periodicity of data coding in the data transmission process of the MIPI interface can be effectively eliminated, so that the communication interference in the data processing and transmission process through the MIPI interface is reduced.

The invention discloses a single-anchor node positioning method based on target node mobility in a two-dimensional space, which comprises the following steps that: an anchor node executes a distance measurement process to obtain a distance from the anchor node to an initial position of the target node; the target node takes the initial position as an original point, establishes a virtual coordinate system, and linearly advances along the selected direction; the target node stops moving, and the moving distance is measured; the anchor node executes a distance measurement process to obtain the distance from the anchor node to the current position of the target node; a new direction is selected by the target node, the target node is linearly advanced along the new direction to stop moving, and a moving distance is measured; the anchor node executes a distance measurement process to obtain the distance from the anchor node to the current position of the target node; and the initial position of the target node is calculated according to the root. According to the single-anchor-node positioning method, the position of the target node can be measured in a scene with only one anchor node under the condition that the hardware complexity of the anchor node is not increased, so that the single-anchor-node positioning method has relatively high environmental adaptability and relatively lowsystem implementation cost.

The invention discloses a millimeter-wave return optimization method capable of being applied to a millimeter-wave wireless return system, which comprises the steps that a massive multiple-input multiple-output and dense small-cell two-layer heterogeneous network system is established; communication waves of a millimeter wave frequency band are adopted between a macro base station (MBS) and a basestation (BS), and millimeter waves are adopted between the base station and a user for wireless return communication; the user obtains energy from the base station through wireless power transmissionequipment; the power loss and energy efficiency of millimeter wave wireless return in the system are calculated; and the power loss and energy efficiency are calculated in the system adopting a millimeter wave return optimization scheme; and the steps are compared to obtain an optimal result. The millimeter-wave return optimization method has the advantages that the communication interference isreduced, the spectrum efficiency is improved, and the energy efficiency is improved.

The invention discloses a trusted energy-saving data convergence method for a wireless sensor network. The method comprises the following steps of: cluster head election, cluster migration and sensor node clearing-up, wherein all uncovered nodes are taken as cluster head nodes or become multi-hop member nodes of other clusters through neighbor nodes to finish node convergence. By the energy-saving data convergence method, the energy load of the whole network is equally allocated to each sensor node, and simultaneously, a data convergence technology is utilized to reduce energy consumption, eliminate data redundancy and increase available information streams from a source node to a base station, thereby fulfilling the aim of prolonging the service life of the whole network.

The invention provides a frequency band replacing method and an apparatus. The method comprises the steps of receiving the identification information for identifying a second base station and sent from a terminal by means of a first base station when the strength of a wireless signal sent from the second base station within a first frequency band is larger than a threshold value, wherein the terminal is pre-accessed to the first base station and is in communication with the first base station within the first frequency band; according to the identification information, triggering the process of a frequency band replacing request to the second base station by the first base station. According to the technical scheme of the invention, the problem in the prior art that wireless communication services provided by multiple individuals or operators within the same frequency band during the wireless communication process are heavily interfered in communication effect can be solved. Furthermore, the effect of reducing the communication interference is realized.

The invention discloses a communication circuit and an air conditioner. The communication circuit comprises a main control substrate and a wire controller, wherein the main control substrate further comprises a power supply loop, a differential mode inductor, a communication loop and a common mode inductor; the common mode inductor is a chip inductor; the turning frequency of the common mode inductor is determined according to the preset shortest length of a first communication line and a second communication line; communication interference can be effectively suppressed even if the communication lines are relatively short; and manual insertion packaging is changed into chip miniaturization packaging, so that the layout flexibility and production convenience of a PCB substrate are greatlyimproved.

The invention discloses an unmanned aerial vehicle airborne vision intelligent processing system and method. The system includes an unmanned aerial vehicle, an optoelectronic pod mounted on the unmanned aerial vehicle, and an information processing module. The information processing module includes an image recognition and tracking submodule, The gimbal PID controller sub-module and the parameter correction sub-module, the parameter correction sub-module obtains the detection data of the gyroscope, accelerometer and geomagnetometer, and corrects the lens rotation angular rate parameter output by the image recognition and tracking sub-module through the detection data. The method includes the following steps: collecting an image, identifying a target in the image, outputting a lens rotation angular rate parameter, correcting the lens rotation angular rate parameter, and controlling the rotation of the photoelectric pod lens through a PID controller. The intelligent processing system and method for on-board vision of the unmanned aerial vehicle of the present invention can solve or reduce the over-rotation phenomenon, the rotation of the photoelectric pod lens is stable, the shake of the lens is greatly reduced, and the captured image is clearer.

The invention discloses an Internet of Vehicles multi-hop broadcasting method based on a message type and a network connection state, and the method comprises the following steps: determining the type of an emergency message to be broadcasted by a source vehicle according to the severity of a detected emergency event; determining a network connection state by the current relay according to the one-hop neighbor information table, the retransmission times of the message and the current relay; according to the network connection state and the emergency message type, the current relay determines a relay strategy, fills the control message and broadcasts the emergency message according to the corresponding strategy; according to the control message, the candidate relay sets corresponding waiting time or adopts a responsibility transfer mechanism; and upgrading the candidate relay broadcasted first to the current relay, and repeating the steps until the emergency message is transmitted to the target area. The method is suitable for transmitting different types of emergency messages in an intermittent network, can adaptively adjust the relay strategy according to different network connection states and message types, and ensures that the emergency messages are transmitted to the target area with low time delay and high probability.

Provided are a frequency band replacement method and device, the method comprising: a first base station receives identifier information used to identify a second base station, the identifier information being transmitted by a terminal after an intensity of a wireless signal transmitted by the second base station in a first frequency band is determined to be higher than a threshold, and the terminal pre-accessing the first base station and communicating with the first base station by using the first frequency band; and the first base station triggers, according to the identifier information, a procedure of transmitting a frequency band replacement request to the second base station. The present invention addresses the problem of serious communication interference caused by the same frequency band being used by a plurality of individuals or carriers to provide a wireless communication service in the related techniques, and in turn reduces communication interference.

The present invention relates to the field of communications, discloses a bandwidth adjustment method and a bandwidth adjustment controller, the adjustment method comprising: according to the user request or channel state, determine the bandwidth update value of the channel of the first network system, and the bandwidth update value of the channel of the second network system, and the bandwidth update value of the protection bandwidth, so that the bandwidth of the first network system after the update, and the bandwidth of the channel of the second network system meets the requirements of the user request or adapt to the channel state. The application of this technical solution can be applied to multiple network systems to share a bandwidth resource, the channel between multiple network systems is adjusted, which is conducive to improving the application efficiency of bandwidth resources and ensuring the anti-interference ability of each network system.