Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
67results about How to "Realize long-distance communication" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Active frequency identification label, system and identification method
ActiveCN101770598AReduce misfire power lossReduce misjudgmentSensing record carriersRecord carriers used with machinesSignal qualityDynamic power management
The invention relates to an active frequency identification label, a system and an identification method. In the method, the active frequency identification label periodically and actively receives monitor signals transmitted by an active frequency identification reader writer and can detect the intensity / or the quality of the received monitor signals to judge the position distance between the active frequency identification label and the active frequency identification reader writer. The active frequency identification label has four working states. The method controls the active frequency identification label to be converted in the working states by the position distance between the active frequency identification label and the active frequency identification reader writer, so that the method realizes dynamic power management and has the advantages of long-range communication and low power consumption.
Owner:刘俊勇
Large-view field antenna-sharing microwave and laser-mixing wireless communication apparatus
ActiveCN103762998AEasy to carryReduce loadFree-space transmissionElectromagnetic transceiversBeam splitterTransceiver
The invention, which belongs to the technical field of wireless communication, relates to a large-view field antenna-sharing microwave and laser-mixing wireless communication apparatus, so that problems that the existing communication system has disadvantages of high complexity, heavy weight and large size, the antenna field angle is small and thus capturing and tracking can not be carried out conveniently, and the receiving sensitivity is low can be solved. The apparatus comprises an off-axis three-reflector structure formed by a primary mirror, a secondary mirror, and a third-stage mirror, a fine tracking galvanometer, a folding mirror, a first beam splitter mirror and a second beam splitter mirror and the like. The fine tracking galvanometer receives the light emitted by the third-stage mirror and reflects the received light to the folding mirror; the folding mirror reflects the received light; the reflected light enters the first beam splitter mirror by an incident way; the first beam splitter mirror reflects one part of the received light to a beacon optical transceiver assembly and the other part of the light is transmitted to the second beam splitter mirror; and the second beam splitter mirror reflects the received light to a communication optical transceiver assembly. A microwave feed source is located at the focus of the primary mirror and is connected to a microwave communication assembly by a cable; and the microwave communication assembly and the laser communication optical transceiver assembly are connected to a master control assembly by cables.
Owner:CHANGCHUN UNIV OF SCI & TECH
An electronic tag based on LPWAN and RFID technology
PendingCN107016434AReduce power consumptionSave bandwidthCo-operative working arrangementsRecord carriers used with machinesComputer moduleEngineering
The invention relates to the technical field of IOT radio frequency wireless identification, and discloses an electronic tag based on LPWAN and RFID technology. The electronic tag comprises an antenna module, a microprocessor, a cell, an LPWAN transmission module and a trigger module, wherein the antenna module is connected to the trigger module; the antenna module is used for sensing an induction coil; when the electronic tag gets close to the induction coil, an electromagnetic field of the induction coil charges the antenna module so as to enable the antenna module to have energy; the trigger module is used for triggering the electronic tag to send LPWAN signals after sensing that the antenna module has energy; an LPWAN transmission module is used for receiving and sending the LPWAN signals; the cell is used for supplying electric power to the modules of the electronic tag; and the microprocessor is used for processing signals and controlling the LPWAN transmission module to send and receive signals. The electronic tag of the invention cleverly combines a passive electronic tag and an active electronic tag to realize the electronic tag based on the LPWAN and RFID technology.
Owner:天津安中通讯电子有限公司
Long-distance communication method and system for ZigBee node, gateway equipment and ZigBee node
ActiveCN106209932ARealize long-distance communicationFunctional complexity independentNetwork topologiesNetworks interconnectionProtocol ApplicationEmbedded system
The embodiment of the invention discloses a long-distance communication method and system for a ZigBee node, wherein the method comprises the following steps: when a source ZigBee node sends a ZigBee data packet to a target ZigBee node in different WPANs, the ZigBee data packet of the source ZigBee node is encapsulated to form an IP data packet; the IP data packet is sent to a de-encapsulation module through an IP network tunnel established between an encapsulation module positioned in the WPAN, where the source ZigBee node is arranged, and the de-encapsulation module positioned in the WPAN, where the target ZigBee node is arranged; the de-encapsulation module performs de-encapsulation of the IP data packet to obtain the ZigBee data packet, and sends the ZigBee data packet to the target ZigBee node; and therefore, long-distance communication of the ZigBee node is realized. The embodiment of the invention can be realized by enhancing a gateway function, has nothing to do with the functional complexity of an application layer, and is simple to realize; furthermore, early deployed ZigBee equipment is compatible, so that large-scale improvement is unnecessary; and thus, the realization cost is low.
Owner:CHINA TELECOM CORP LTD
Transmitting system based on rotary mechanical antenna and information loading method
ActiveCN110943953ARealize long-distance communicationRadiating elements structural formsFrequency-modulated carrier systemsElectric machineClosed loop feedback
The invention provides a transmitting system based on a rotary mechanical antenna and an information loading method. The method comprises: information is loaded to a frequency parameter for emitting electromagnetic waves through rotating speed regulation and control according to requirements of a signalling excitation signal; then through rotating speed detection and closed-loop feedback control,regulating and controlling the rotating speed of the rotating motor and the mechanical antenna fixedly connected with the rotating motor, and achieving frequency control of an emitted electromagneticwave; and driving the rotary mechanical antenna by the rotary motor to rotate around the center shaft at a high speed, transmitting electromagnetic waves with the same frequency as the rotating speedto the outside, receiving the transmitted electromagnetic wave signal by a receiving side, receiving information through frequency demodulation, and then achieving low-frequency radio long-distance communication.
Owner:武汉船舶通信研究所
Device and method for monitoring mobile phone video based on optimized H.264 coding standard
InactiveCN101568029ARealize long-distance communicationAdvanced and reliable multi-frame differential motion detection functionClosed circuit television systemsDigital video signal modificationAudio signalReal-time computing
The invention relates to a device and a method for monitoring mobile phone video based on optimized H.264 coding standard. The method comprises the following steps: carrying out digitized sampling on acquired audio signals and video signals respectively; carrying out de-noising processing on the video signals, compressing video data by adopting an optimized H.264 compression algorithm, compressing audio data by adopting an optimized AMR algorithm, and overlapping channel number, monitoring date and time into the compressed audio-video data; and sending the compressed audio-video data to a mobile phone terminal through RTP and RTSP protocols, and playing the audio-video signals through corresponding player software. The device and the method adopt a holing mode facing private network TCP penetration, and have functions of reliable monitoring for a multi-frame differential moving target, advanced image record based on a double-buffer area, private area protection, multi-language automatic switch, wire / wireless automatic detection, audio bidirectional talkback based on a TCP5000 port and automatic alarm.
Owner:SHENZHEN GOSPELL SMARTHOME ELECTRONICS
Method and device for two-way communication between virtual PS/2 apparatus and host machine
InactiveCN1677325AAchieve normal startupSupport hot swapInput/output processes for data processingFistMicrocontroller
The invention is a method and device for virtually making two-way communication between PS / 2 equipment and host computer, and the method includes the steps: 1) PS / 2 equipment-end MCU virtually makes the communication of the host computer with the PS / 2 equipment; 2) host computer-end MCU virtually makes the communication of the PS / 2 equipment with the host computer. The device comprises PS / 2 equipment and host computer and besides, comprises a fist MCU at the PS / 2 equipment end, used to virtually make the host computer interchanging the initializing signal of the PS / 2 equipment with the PS / 2 equipment, initialize the PS / 2 equipment and detect and process PS / 2 equipment-end PS / 2 protocol communication signal; and comprises a second MCU at the host computer end, used to virtually make the PS / 2 equipment interchanging the initializing signal of the PS / 2 equipment with the host computer, virtually initialize the PS / 2 equipment by the host computer and detect and process host computer-end PS / 2 protocol signal. Because of using the MCU to virtually make the communication between the PS / 2 equipment and the host computer, the invention can support the startup of the host computer without equipment and the hot plug of the PS / 2 equipment, and can adopt enlarge the communication distance between the PS / 2 equipment and the host computer in a RS485-protocol communicating mode.
Owner:LENOVO (BEIJING) LTD
An OFDM optical fiber wireless communication system based on phase modulator
InactiveCN101217316AImprove spectral efficiencySuppression of Chromatic Dispersion and Polarization Mode DispersionRadio-over-fibreFiber optic transmissionPhase modulation
The invention discloses a radio-on-fiber (ROF) communication system which belongs to the technical field of ROF communication systems and adopts a phase modulator for generating optical millimeter wave and simultaneously transmitting orthogonal frequency division multiplexing (OFDM) signals. The invention uses the characteristics of higher reliability and cheapness when using the phase modulator for generating the optical millimeter wave, thus having the advantages of higher reliability and cheap performance, simple structure and easy implementation. The invention leads the OFDM signal to be uploaded onto the optical millimeter wave by using the phase modulating, thus prolonging the transmission distance of optical fibers.
Owner:HUNAN UNIV
Communication system of elevator internet of things and data sending method
The invention relates to the field of elevator internet of things and discloses a communication system of the elevator internet of things and a data sending method. The system comprises elevator controllers, nodes, network equipment and a server of the internet of things, and further comprises a gateway, wherein each node is connected with one elevator controller and is in wireless connection with the gateway; the gateway is connected with the network equipment and the server of the internet of things in sequence; each node sends elevator operating data of the elevator controller connected with the node to the gateway in a wireless mode, and the gateway sends the received elevator operating data to the server of the internet of things through the network equipment. Compared with the prior art, the multiple nodes are in communication with the server of the internet of things through one gateway, loads of the server of the internet of things can be lowered remarkably, network cost of the whole communication system is lowered, and an elevator can have access to the internet conveniently and rapidly.
Owner:SHANGHAI STEP ELECTRIC
Quantum key distribution network system and method based on orbital angular momentum multiplexing
ActiveCN107634831ASmooth transmissionRealize long-distance communicationKey distribution for secure communicationMomentumAngular momentum
The invention discloses a quantum key distribution network system and method based on orbital angular momentum multiplexing. The system comprises an Alice control side, an orbital angular momentum mode division multiplexing unit and a Bob user side. The Alice control side comprises a signal modulation unit and an orbital angular momentum multiplexing unit. The orbital angular momentum mode division multiplexing unit comprises a Galileo telescope assembly and an orbital angular momentum separation device. The Bob user side comprises N Bob users. Each Bob user comprises a polarization controllerand a detection device. A light signal generated by the signal modulation unit enters the orbital angular momentum multiplexing unit, the Galileo telescope assembly and the orbital angular momentum separation device in sequence, then is transmitted to the polarization controller of the corresponding Bob user side and finally enters the detection device for detection. According to the system and method, one-to-many communication of quantum network communication is realized, each user is relatively independent, the number of the users can be increased as the orbital angular momentum multiplexing is increased, and the system and the method have high expandability and relatively high practicability.
Owner:NAT QUANTUM COMM GUANGDONG CO LTD
Emergency communication host with internal and external communication functions
InactiveCN104660752ASimple structureReasonable designTelephone set constructionsSignal processing circuitsEngineering
The invention discloses an emergency communication host with internal and external communication functions. The emergency communication host comprises a host case, a talkback button, a talkback handle, a power circuit, a host internal and external communication circuit and a talkback handle communication circuit, wherein the power circuit comprises a rechargeable battery, an isolated single-end flyback switching power buck circuit, a power switching circuit, a battery charging circuit, a battery protection circuit, a battery voltage detection circuit, a non-isolated Boost circuit, a linear voltage stabilizing circuit and an extension voltage supply control circuit; the host internal and external communication circuit comprises a GSM module, an SIM card seat, a GSM antenna, a watchdog circuit, a reset circuit, a voice signal processing circuit, a distress signal detection circuit, a handle on-hook detection button circuit, a buzzer circuit, a low battery capacity indication circuit and a GSM network signal indication circuit. The host is convenient to install and use, high in voice response speed, high in communication quality, high in working reliability and capable of realizing 24-hour emergency calls.
Owner:XIAN UNIV OF SCI & TECH
Communication method and system
InactiveCN103973343AReduce consumptionRealize long-distance communicationNear-field systems using receiversWireless communicationTerminal serverTerminal equipment
The invention is suitable for the technical field of communication and provides a communication method and system. The method is applied to the system comprising a plurality of terminal devices, and all the terminal devices have the Bluetooth function. The method comprises the steps that the Bluetooth function of all the terminal devices are started, one terminal device searches for the other terminal devices with the Bluetooth functions started, and stores information of the other searched terminal devices with the Bluetooth functions started; after receiving the communication request information sent by the other terminal devices through Bluetooth, the terminal device searches for the stored information to judge whether the information, corresponding to unique identifiers, of the terminal devices exists in the stored information according to the unique identifiers, carried by the communication request information, of the terminal devices to be communicated; if the information exists, the communication request information is sent to the terminal devices corresponding to the unique identifiers through the Bluetooth so that communication can be achieved. The method can effectively solve the problem that users of the terminal devices can not carry out communication on occasions without the wired network or the wireless network.
Owner:广东华邦云计算股份有限公司
Wireless energy collection type wireless sensor network node
ActiveCN107566014ASustainable Work AchievementRealize long-distance communicationNear-field transmissionCircuit arrangementsMobile wireless sensor networkWireless mesh network
The invention discloses a wireless energy collection type wireless sensor network node specifically comprising a wireless energy collection module, a charge and discharge management module, a receiving and sending front end, a modulation circuit and a microprocessor. The wireless sensor network node provides energy for the microprocessor and a front end receiving and sending circuit of the wireless sensor network node in a wireless energy collection mode; moreover, Miller encoding and extension encoding thereof in the ISO / IEC18000-6C protocol are achieved by using an assembly language on the basis of the microprocessor, all functions of the ISO / IEC18000-6C protocol are achieved, that is, an RFID tag is achieved, a sensing command format is defined, and a sensing function is provided; and remote communication of an active tag can be achieved, the microprocessor continuously works due to a wireless charging mode, the defects of short service life of the active tag and frequent battery change are overcome, reference can be provided for the layout of the wireless sensor network, the possibility of realizing fast implementation can be provided for the research on the RFID algorithm, andthe development periods are reduced.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Communications relay device, method and air conditioner
ActiveCN106545955AGuaranteed reliabilityRealize long-distance communicationMechanical apparatusSpace heating and ventilation safety systemsData transmissionRelay
The invention discloses a communications relay device, a communications relay method and an air conditioner. The communications relay device comprises a main control chip, an indoor unit communication module and an outdoor unit communication module, wherein the indoor unit communication module is connected with an outdoor unit through a communication line; the outdoor unit communication module is connected with the indoor unit communication module, and is connected with an indoor unit through a communication line; the main control chip is connected with the indoor unit communication module and the outdoor unit communication module, and is used for controlling the indoor unit communication module and the outdoor unit communication module to establish a data transmission channel between the outdoor unit and the indoor unit. Through the communications relay device, the communications relay method and the air conditioner, a plurality of communications relay devices can be cascaded for use, so that long-distance communication between the indoor unit and the outdoor unit of a variable frequency chamber of the air conditioner is realized flexibly; the reliability of long-distance communication is ensured; the mounting of a super-long connecting pipe of the indoor unit and the outdoor unit can also be realized.
Owner:GREE ELECTRIC APPLIANCES INC
Fire hydrant monitoring and control system based on Internet of Things
The invention provides a fire hydrant monitoring and control system based on Internet of Things. The fire hydrant monitoring system comprises a fire hydrant monitoring system, a control system, a mobile terminal, a cloud platform, a server and a base station. The fire hydrant monitoring and control system adopts an NB-IoT wireless communication technology, and realizes the wireless communication among the fire hydrant monitoring system, the control system, the cloud platform and the mobile terminal. The fire hydrant system based on Internet of Things is arranged on the basis of the LB-IoT wireless communication technology, and can acquire the state information and distance of each fire hydrant and send the state information and the distance to a fire control center and the mobile terminalstarted on the fire hydrant, so that the fire control center can schedule in time for rescue, and can find the corresponding positions of the fire hydrants in time. The fire hydrant monitoring and control system can monitor the states of the fire hydrants more conveniently and quickly, accurately acquires information, and achieves the purpose of efficiently extinguishing a fire.
Owner:九江中船消防设备有限公司
New generation of multifunctional prepaid remote water meter
InactiveCN102749105ASimple structureStable performanceElectric signal transmission systemsOperating means/releasing devices for valvesTelephone lineRemote meter reading
The invention discloses a new generation of multifunctional prepaid remote water meter. The multifunctional prepaid remote water meter comprises a rotary-wing type multi-flow mechanical water meter, which is integrated with a water meter base table and a transmission sensor; the rotary-wing type multi-flow mechanical water meter is connected with a single chip measuring and controlling circuit; the single chip measuring and controlling circuit is connected with an executing mechanism; the executing mechanism is connected with an electric control valve; a digital measuring circuit, a single chip main chip and a control circuit are embedded in the single chip measuring and controlling circuit; and the single chip main chip is respectively connected with a liquid crystal display, a transmitting antenna, a building collector, a transcription machine and an external power supply in sequence. The new generation of multifunctional prepaid remote water meter disclosed by the invention has the advantages as follows: simple structure and stable performance are achieved; a prepaid function is achieved; after purchased water quantity is used up, the valve is automatically shut off to remind a user of purchasing water in time; a stepwise-water-price charging function is obtained; remote communication is achieved through telephone lines, wide-band networks, wireless transmission and so on; and the meter of each house is remotely read, so that defect of unreliability for reading data in the traditional remote water meter is fundamentally solved. The phenomenon of water stealing and leakage is eliminated. The new generation of multifunctional prepaid remote water meter disclosed by the invention is widely applied to water supply companies in big, medium and small cities.
Owner:XIAN TRIONES DIGITAL INFORMATION
High-power fiber laser phased array high-speed information transmitting device capable of being dynamically connected
ActiveCN103944641ARealize dynamic outputAchieve high power outputElectromagnetic transmittersBeam splitterOptoelectronics
A high-power fiber laser phased array high-speed information transmitting device capable of being dynamically connected is applied to the field of super-remote-distance space communication. To achieve high-speed laser high-power emission and super-remote-distance transmission, a seed source undergoes beam split through a coupler, a beam of light is input into phase controllers as reference light, and the other beam of light undergoes high-speed information modulation; a radio-frequency signal generator and the other beam of light enter an intensity modulator to obtain a high-speed modulation signal, the high-speed modulation signal enters the four phase controllers respectively to carry out phase control after undergoing uniform light split through the coupler, four beams of high-speed modulated light are obtained, and the four beams of high-speed modulated light enter four optical fiber amplifiers respectively to be amplified at a high power and then undergo coherent beam combination through a beam combiner; a beam splitter outputs 1% of a combined laser into the phase controllers, the combined laser undergoes phase comparison with the reference light, the comparison result is processed by the phase controllers to send out phase control signals, and four phase modulators control the phases of the beams of light respectively after receiving the phase control signals to guarantee coherent beam combination and emission angle scanning.
Owner:CHANGCHUN UNIV OF SCI & TECH
Large FOV Common Antenna Hybrid Microwave and Laser Wireless Communication Device
ActiveCN103762998BEasy to carryReduce loadFree-space transmissionElectromagnetic transceiversBeam splitterTransceiver
Owner:CHANGCHUN UNIV OF SCI & TECH
Single-bus temperature acquisition system integrated chip
InactiveCN103528708ASmall sizeHighly integratedThermometers using electric/magnetic elementsUsing electrical meansData informationEngineering
The invention discloses a single-bus temperature acquisition system integrated chip, and relates to a semiconductor integrated circuit. The single-bus temperature acquisition system integrated chip is composed of a substrate on which a chip is welded. The chip is provided with a plurality of pins. The single-bus temperature acquisition system integrated chip is characterized in that: partial pins of the chip are connected with more than one temperature sensor through a substrate pin; the chip is provided with a constant-current driving module, a power module, a channel switching module, an analog-to-digital conversion module, a decision output module, an output indicating module, a rough measurement output module, an accurate measurement output module, a single data bus, an adjustable clock module and a control mode module; and the functional modules are connected in an electrical connecting manner. Physical quantity information of a plurality of different temperature sensors can be measured simultaneously. After performing rough measurement calculation or accurate measurement calculation on a plurality of pieces of physical quantity information, the data information is transmitted according to different client requirements. The single-bus temperature acquisition system integrated chip has the following functions: cost reduction, simple wiring, capability of realizing long-distance communication, and ultralow power consumption.
Owner:黄正宇
Method and system for remotely and wirelessly controlling vehicle
InactiveCN102897055AThe effect is positive and obviousRealize wireless long-distance communicationSpeed controllerElectric vehicle charging technologyElectronic systemsWireless control
The invention provides a method for remotely and wirelessly controlling a vehicle, wherein a vehicle-mounted wireless communication module is arranged on the vehicle; the vehicle-mounted wireless communication module is connected with a mobile communication network and is further connected to a vehicle electronic system, a control instruction is input on a mobile communication terminal and the mobile communication terminal sends the control instruction to the vehicle-mounted wireless communication module through the mobile communication network; and the control instruction is executed by the vehicle electronic system. The invention also provides a system for remotely and wirelessly controlling a vehicle, which comprises a vehicle-mounted wireless communication module, a mobile communication terminal, a mobile communication network and a vehicle electronic system, wherein the mobile communication terminal is connected with the vehicle-mounted wireless communication module through the mobile communication network; and the vehicle-mounted wireless communication module is connected with the vehicle electronic system. Besides, the number of the mobile communication terminal is preset in the vehicle-mounted wireless communication module; and the vehicle-mounted wireless communication module is provided with an unique identification number. The method and the system provided by the invention realize remote wireless control of the vehicle through the mobile communication network and are capable of realizing various control functions.
Owner:YANFENG VISTEON AUTOMOTIVE ELECTRONICS
Serial modem type data photoelectric conversion device
ActiveCN104883222ALow costReduce laying costsFibre transmissionElectric digital data processingModem deviceData acquisition
Disclosed is a serial modem type data photoelectric conversion device, which includes a receiving end module (1), a modulation end module (2), an electro-optical conversion end module (3), a photoelectric conversion end module (4) and a demodulation end module (5). The receiving end module (1) comprises a plurality of MAX232 chips (6) and corresponding optocoupler members (7) connected with the MAX232 chips (6). The modulation end module (2) comprises a data acquisition member (8) and a data acceleration member (9). The data acceleration member (9) compresses the acquired data by the data acquisition member (8) through data transmission acceleration encoding. The electro-optical conversion end module (3) transmits an optical signal to the photoelectric conversion end module (4) via an optical fiber. The demodulation end module (5) comprises a data decoding member (10) and a data output member (11). The data decoding member (10) decodes and transmits data to the data output member (11). The data output member (11) transmits the data to an RS232 serial port.
Owner:NANJING DAQO AUTOMATION TECH
Method, device, facility and system for outputting alarm prompt
ActiveCN103716070ARealize long-distance communicationHigh activityNear-field transmissionBluetoothBroadcasting
The invention provides a method, device, facility and system for outputting an alarm prompt. The method comprises the steps that the Bluetooth forwarding device sends broadcast information; the Bluetooth forwarding device receives response signals sent by a communication terminal or other Bluetooth forwarding devices, establishes connection and receives alarming information sent by the communication terminal or alarming information, sent by other Bluetooth forwarding devices, of the communication terminal after connection is established successfully; the Bluetooth forwarding device receives response signals sent by the Bluetooth prompting facility and establishes connection; the Bluetooth forwarding device forwards the alarming information to the Bluetooth prompting facility matched with the communication terminal; the Bluetooth forwarding device sends the alarming information to the Bluetooth prompting facility to enable the Bluetooth prompting facility to recognize the alarming information and output the corresponding alarming prompt. Telecommunication between the communication terminal and the Bluetooth prompting facility can be achieved through the Bluetooth forwarding device.
Owner:SHENZHEN GUOHUA OPTOELECTRONICS +1
Wireless network communication method, network equipment and terminal
ActiveCN111436050ARealize long-distance communicationResolve authorizationNetwork topologiesConnection managementUncrewed vehicleEngineering
The invention provides a wireless network communication method, network equipment and a terminal. The method comprises the steps that an unmanned aerial vehicle flow management entity receives an authorization request; the unmanned aerial vehicle flow management entity sends an authorization response; wherein the authorization request is used for requesting an authorization terminal to control anunmanned aerial vehicle, and the authorization response is used for indicating whether the terminal is allowed to control the unmanned aerial vehicle; or, the authorization request is used for requesting the authorization terminal matching the unmanned aerial vehicle controller, and the authorization response is used for indicating whether the terminal is allowed to be matched with the unmanned aerial vehicle controller. The unmanned aerial vehicle flow management entity in a mobile communication network is used for authorizing or matching the unmanned aerial vehicle controller and the unmanned aerial vehicle, so that remote communication between the unmanned aerial vehicle controller and the unmanned aerial vehicle is realized.
Owner:HUAWEI TECH CO LTD
Control method and device for sulfuric acid leakage monitoring
ActiveCN104141883AIncrease the areaPrecise positioningPipeline systemsElectrical resistance and conductanceCopper wire
The invention discloses a control method for sulfuric acid leakage monitoring. The method comprises steps as follows: leaked acid receiving tapes are arranged at the parts requiring sulfuric acid monitoring; the structure of each leaked acid receiving tape is as follows: copper wires are laid on a substrate made of a thermoplastic resin material and coated with polyether-ether-ketone protecting layers; if the resistance values of the leaked acid receiving tapes change, sulfuric acid leakage alarm is given; and the stable resistance values are acquired after the resistance values of the leaked acid receiving tapes change, the specific sulfuric acid leakage position is obtained according to the relationship among acquired stable resistance values, the section areas of the copper wires and the electrical resistivity of the copper wires before leakage, and a notification message is sent. According to the method and the device, the problems that micro-leakage of sulfuric acid cannot be monitored at present and the leakage position cannot be positioned are solved.
Owner:河北旭隆化工有限公司
Interphone system and use method thereof
InactiveCN109413564AUnderstand location distributionAchieve positioningBroadcast service distributionSatellite radio beaconingLiquid-crystal displayComputer module
The invention discloses an interphone system and a use method thereof. The interphone system comprises an MCU control module, a short message communication module, a Beidou positioning module, a baseband processing module, a CODEC module, a radio-frequency receiving-transmitting module, a frequency writing module, buttons, an LCD (Liquid Crystal Display) screen, a loudspeaker and a microphone, wherein the MCU control module is connected with the other modules, and used for controlling the other modules to work cooperatively. The position information of an interphone can be acquired through theBeidou positioning module, and displayed through the LCD screen, and a user can transmit the position information to a background server in real time, so that an operator of the background server canknow the position distribution of the interphone visually. Meanwhile, the interphone can send short message information through the short message communication module during remote communication, sothat positioning can be realized; the position information of the user can be transmitted; remote communication is realized; and the problems of single function, low communication efficiency and shortcommunication distance existing in a traditional interphone are solved.
Owner:BEIDOU TIANDI CO LTD
Timing system for vehicle property competition and realizing method thereof
InactiveCN106846531AReduce work intensityMeet the requirements of the long-distance trackRegistering/indicating time of eventsGratingEngineering
The invention discloses a timing system for vehicle property competition and a realizing method thereof. The timing system comprises a triggering unit A, a triggering unit B, a base station unit and a signal lamp unit, wherein the triggering unit A consists of grating sensor modules at a starting point and a terminal point for a racing track I; the triggering unit B consists of grating sensor modules at a starting point and a terminal point for a racing track II; the base station unit consists of a radio station A, a radio station B, a timing module and an industrial personal computer. The timing system has the advantages that the system is suitable for the competition of single racing track, and also suitable for the competition of double racing tracks; by adopting the wireless digital transmission radio stations, the requirement of long-distance racing track is met, the delay time does not exceed 1ms, and the timing accuracy is higher; by adopting the grating sensors, the system is suitable for monitoring the racing tracks under various complicated road conditions, and the monitoring distance can reach 5 kilometres; the remote communication, control and timing can be realized, the scores of racers can be automatically sequenced and stored, and the working intensity of workers is greatly decreased.
Owner:TIANJIN 764 COMM AIRMANSHIP
Method and device for multiplexing photo-communication meter
InactiveCN102142895AReduce lossesImprove reuse efficiencyElectromagnetic transmissionPhotoswitchClient-side
The invention discloses a method for multiplexing a photo-communication meter, which comprises two parts of building control and executing through building a photo-communication network, wherein the control part comprises a server side and a plurality of client sides connected with the server side; the executing part comprises a photoswitch; meter information is searched and stored by using the server side and broadcast to each client side; a user operates at the corresponding client side according to the meter information, the client side sends an operation command and transmits the operation command to the photoswitch and the server side; the photoswitch receives the operation command so as to execute the switching of an optical path, thus the corresponding meter is connected with an object to be measured; and the server side receives the operation command so as to update the stored meter information and updates the broadcasting to the client sides in real time so as to be convenient for next operation. The invention also discloses a device for multiplexing the photo-communication meter.
Owner:WUHAN TELECOMM DEVICES
BLE gateway communication method and system and computer equipment
PendingCN113645603ALower assembly costsEnables low power operationNetwork connectionsShort range communication serviceLow power dissipationEmbedded system
The invention provides a BLE gateway communication method and system and computer equipment, and the communication method comprises the steps that a Bluetooth gateway is bound with a plurality of terminals in a binding mode, a binding table is generated, and the binding table comprises an MAC address of each terminal, a working time slot of each terminal and a working parameter of each terminal; when the Bluetooth gateway enters a wake-up mode at a preset moment, first configuration information sent by the cloud is received; the Bluetooth gateway establishes communication connection with a corresponding target terminal according to the first configuration information, the MAC address of each terminal and the working time slot of each terminal, and receives report data sent by the target terminal; the Bluetooth gateway sends the reported data of all the target terminals to the cloud, then enters a sleep mode, and waits for a next preset moment to enter a wake-up mode; and the problem that an outdoor gateway in the prior art cannot realize long-distance communication and low-power-consumption communication at the same time is solved, low-power-consumption communication is realized, and the transmission efficiency is also improved.
Owner:SICHUAN CHANGHONG NETWORK TECH CO LTD
Control device and control method for coordination hoisting of crawler cranes
ActiveCN103792916ASimple hardware structureImprove protectionTotal factory controlProgramme total factory controlControl roomProcess information
A control device for coordination hoisting of crawler cranes comprises a hoisted object gesture detection and data processing transmission module and at least two coordination control and display modules. The hoisted object gesture detection and data processing transmission module is arranged on an object to be hoisted, and is used for collecting and processing the gesture information of the object to be hoisted and transmitting the processed information to the coordination control and display modules. The coordination control and display modules are mounted in crane control rooms respectively and are respectively used for receiving the gesture information of the object to be hoisted sent by the hoisted object gesture detection and data processing transmission module. Meanwhile, all the coordination control and display modules interact the hoisting weight, the hoisting height and the hoisting speed of respective cranes which the coordination control and display modules belong to in a wireless communication mode. By means of the control device for coordination hoisting of the crawler cranes, large-tonnage heavy goods can be hoisted through cooperation of low-cost and low-tonnage crawler cranes, cost is greatly lowered, meanwhile, parameters can be displayed on a display screen in real time, and thus the device is more user-friendly.
Owner:SHANGHAI JIAO TONG UNIV
A building energy consumption management system and a building energy consumption management method
InactiveCN109040250ALong distance communicationImprove stabilityData processing applicationsMeasurement devicesManagement systemBuilding energy
The invention discloses a building energy consumption management system and a building energy consumption management method, wherein the system comprises a device layer, a remote terminal control unitand a background service management unit. The device layer is used for collecting energy consumption data in a building. The remote terminal control unit is connected with the device layer through awireless transmission module to collect and control data of the device layer. The background service management unit is connected with the remote terminal control unit through a wired transmission module to perform data communication with the remote terminal control unit. The invention realizes long-distance communication, and the communication stability is high.
Owner:深圳市万睿智能科技有限公司
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com