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60results about How to "Expand the scope of reception" patented technology
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Automatic tracking robot control device and automatic tracking robot
InactiveCN104260092AImplement trackingAchieve positioningProgramme-controlled manipulatorTime informationAutomatic train control
The invention provides an automatic tracking robot control device and an automatic tracking robot. The device comprises a client side and a tracking side. The tracking side comprises a tracking module, a second wireless communication module, a second control module and a driving module, wherein the tracking module comprises an ultrasonic wave receiver which is arranged on the robot through a steering engine, and the tracking module is used for receiving an ultrasonic wave signal sent by an ultrasonic wave sending module, generating rotating angle information of the steering engine and sending the ultrasonic wave signal and the rotating angle information to the second control module. The second control module is used for obtaining positioning information between the client side and the tracking side according to the ultrasonic wave signal, the rotating angle information and time information, generating walking instruction information according to the position information, and sending the walking instruction information to the driving module. According to the automatic tracking robot control device, the problems that an existing automatic tracking control device is inaccurate in direction determining and signals are prone to being lost are solved.
Owner:DALIAN UNIV OF TECH
Antenna structure, operating method therefor, and antenna equipment
ActiveCN107528121AReduce difficultyReduce thicknessSimultaneous aerial operationsRadiating elements structural formsDielectric substrateElectric field
The invention discloses an antenna structure, an operating method therefor, and antenna equipment. The antenna structure comprises a first dielectric substrate; a first electrode layer and a second electrode layer which are disposed at one side of the first dielectric substrate and are arranged oppositely; a liquid crystal layer disposed between the first electrode layer and the second electrode layer, wherein the first electrode layer comprises a first electrode bar and a second electrode bar, which are insulated with each other. The first and second electrode bars can form a horizontal electric field, thereby enabling the orientation of liquid crystal molecules in the liquid crystal layer to tend to be the direction of the horizontal electric field. The radiation range of the antenna structure can enlarged without an additional orientation layer, the difficulty of the preparation technology of the antenna structure is reduced, and the cost is saved.
Owner:BOE TECH GRP CO LTD
Mobile payment through-connection-bridge communication distance balanced through-connection-bridge antenna
ActiveCN102544709AReduce the coupling coefficientExpand the scope of receptionAntenna arraysRadiating elements structural formsPhysicsTransmission function
A mobile payment through-connection-bridge communication distance balanced through-connection-bridge antenna comprises a 13.56MHz through-connection-bridge antenna, an outer ring helical antenna and an 8-shaped antenna formed by connecting two reversed rounding spiral coils in series. The 8-shaped antenna is inlaid in a ring of the outer ring helical antenna and is next to the ring of the outer ring helical antenna, the 13.56MHz through-connection-bridge antenna is located in a ring of a 13.56MHz reader antenna, and the outer ring helical antenna and the 8-shaped antenna are connected with respective through-connection-bridge chips. The antenna uses the through-connection-bridge chip with low receiving gain to connect the helical antenna which is arranged on the periphery and has a small number of rings to mainly receive mobile phone signals with weak shield, uses the 8-shaped antenna which is formed by series-opposing connection coils, arranged in the inner ring, and has a large number of rings to receive mobile phone subscriber identity module (SIM) sending signals with strong shield, uses the same 13.56MHz antenna for load debugging, can receive various signals sent by the mobile phones, enables the signals to be sent to the reader in the load debugging mode, and completes a signal transmission function from the mobile phones to the reader.
Owner:SHANGHAI QUANRAY ELECTRONICS
Underground shallow seismic source positioning method based on deep learning
ActiveCN110414675AImprove positioning efficiencyReduce intermediate steps such as calculationSeismic signal processingNeural architecturesSensor arrayLearning network
The invention relates to an underground shallow seismic source positioning method based on deep learning. The underground shallow seismic source positioning method comprises the following steps: arranging a distributed vibration sensor array, generating a learning sample, setting a seismic source bullet position corresponding to a three-dimensional energy field image sample as a training label, constructing a deep learning network framework, training a network, and positioning an actual explosion seismic source. According to the invention, the intermediate steps of positioning parameter extraction, positioning model modeling, positioning model calculation and the like in a traditional shallow seismic source positioning process are reduced. The method greatly improves the seismic source positioning efficiency, eliminates the positioning blind area, reduces the dependence of the channel reconstruction precision of a monitoring region on the seismic source positioning precision, and provides a new seismic source positioning method for the underground shallow seismic source positioning.
Owner:ZHONGBEI UNIV
Anti-interference anti-deception ADS-B receiver based on directional antennas, and receiving method of anti-interference anti-deception ADS-B receiver
PendingCN107817464AExpand coverageImprove anti-jammingRadio wave finder detailsSpatial transmit diversityInterference resistanceControl system
The invention discloses an anti-interference anti-deception ADS-B receiver based on directional antennas, and a receiving method of the anti-interference anti-deception ADS-B receiver. The method specifically comprises the steps: forming an antenna array through a plurality of directional antennas, wherein each directional antenna is connected with a dedicated receiving channel, thereby achievingthe signal amplifying, filtering and mixing; carrying out the demodulation of signals through a dedicated demodulation decoding module, and obtaining the state information of an aircraft; extracting the position information of the aircraft, and enabling a direction calculation module to estimate the direction of an incoming wave through the position information of the aircraft and the position information of a receiver; enabling comparison module to achieve the matching of the estimated direction of the incoming wave with an incoming wave direction range of a directional antenna receiving thesignal, and transmitting a matching result and the state information of the aircraft to a control system through an output module. The method enlarges the coverage of the receiver, solves a problem that a signal cannot be correctly demodulated and decoded during information collision, and improves the anti-interference and anti-deception capability of the receiver.
Owner:XIAN HUAXUN TIANJI COMM TECH CO LTD
Atomic time signal receiving system and method
ActiveCN102307088AImprove qualityExpand the scope of receptionFibre transmissionElectromagnetic receiversMicrowave signalsTime signal
The invention discloses an atomic time signal receiving system and method. The system comprises a microwave detection part and a microwave signal processing part, wherein the microwave detection part is used to couple an optical signal at an atomic time signal receiving position at any position in an optical fiber link and then demodulate a microwave signal on the optical signal; the microwave signal processing part is used to reproduce an atomic time signal of which the phase is locked on a reference clock on the basis of the demodulated microwave signal; and the microwave detection part can respectively couple parts of the optical signals transmitted along the opposite directions in the optical fiber link and then perform a demodulation process. According to the atomic time signal receiving system, atomic time signal of which the phase is locked on the reference clock can be reproduced at any position in the compensated signal transmission system of the optical fiber link, thus the application range of the atomic time signal fiber transmission system can be enlarged.
Owner:TSINGHUA UNIV
Wireless communication module
InactiveCN103516379AExpand the scope of receptionTransmissionUltrasound attenuationAudio power amplifier
The invention discloses a wireless communication module which comprises a baseband chip, an antenna, a single-pole double-throw switch, a signal transmission branch and a signal receiving branch. The signal receiving branch comprises a band-pass filter, a single-pole three-throw switch, a low noise amplifier and an attenuator, the band-pass filter is connected with the antenna through the single-pole double-throw switch, the single-pole three-throw switch is connected with the band-pass filter, and the three branches of the single-pole three-throw switch are respectively connected to the baseband chip directly and through the low noise amplifier and the attenuator. The wireless communication module selects the corresponding signal transmission route according to the intensity of the signals received by the antenna and conducts amplification, attenuation or shoot-through on the signals, and therefore the signal receiving range of the wireless communication module is expanded.
Owner:AMBIT MICROSYSTEMS (SHANGHAI) LTD +1
Double centromere distorted chromosome analysis and prediction method based on multi-scale fusion method
PendingCN112381806AFast and accurate automatic detection and analysisImprove analysis efficiencyImage enhancementImage analysisAlgorithmNetwork model
The invention relates to a chromosome analysis technology, and discloses a double centromere distorted chromosome analysis and prediction method based on a multi-scale fusion method, and the method comprises the steps: enabling a trained neural network model to extract the deep features of an inputted to-be-analyzed chromosome image through CSPN; carrying out Drop Block operation and spatial pyramid pooling operation to extract key features; respectively outputting three feature tensors on three scales by adopting a feature fusion strategy combining a feature pyramid network and a path aggregation network; after Drop Block operation is carried out, outputting three prediction tensors; adopting a DIOU NMS algorithm to screen the predicted bounding box; and analyzing the double centromere distorted chromosome. The trained neural network model can quickly mark the distorted chromosomes on the distorted chromosome image and count the number of the distorted chromosomes, the detection accuracy is higher, the robustness is higher, and a doctor is assisted in completing biological dose estimation.
Owner:SHANGHAI BEION MEDICAL TECH CO LTD
Stereoscanning mesoscopic photoacoustic imaging system for subcutaneous tumor of small animal
InactiveCN108553080AImprove energy transferImprove uniformityCatheterDiagnostics using tomographyFiberHigh energy
The invention relates to a stereoscanning mesoscopic photoacoustic imaging system for a subcutaneous tumor of a small animal. The system comprises a light source system, a multi-angle stereo-scanningsystem, a water tank, a photoacoustic detection system, a data acquisition system and an industrial controller. The light source system comprises a high-energy pulse laser producing a photoacoustic signal and a multi-arm fiber optics bundle guiding emitted light of the laser. The photoacoustic detection system comprises a high-frequency point focused ultrasound detector used for receiving a photoacoustic signal, wherein defocusing-type measurement of the high-frequency point focused ultrasound detector is utilized. The multi-angle stereo-scanning system comprises an imaging support used for placing an imaging target, an electrically-controlled elevating table, an electrically-connected translational table and an electrically-controlled rotary table equipped with the high-frequency point focused ultrasound detector. The electrically-controlled rotary table is fixed onto the electrically-connected translational table. The imaging support is fixed onto the electrically-controlled elevating table. Through the electrically-controlled rotary table and the electrically-connected translational table, stereoscanning operation on a three-dimensional space is conducted by the high-frequency point focused ultrasound detector.
Owner:TIANJIN UNIV
Supersonic wave emitter and balance vehicle system capable of following automatically
InactiveCN104898110AExpand the scope of receptionImprove accuracyMotorcyclesAcoustic wave reradiationEngineeringUsage experience
The invention relates to the field of balance vehicles, and specifically relates to a supersonic wave emitter and a balance vehicle system capable of following automatically. The supersonic wave emitter comprises a housing and a supersonic wave emitting structure arranged in the housing. The supersonic wave emitting structure comprises a supersonic wave emitting head used for emitting supersonic waves and a driving assembly used for driving the supersonic wave emitting head. A diffuser is further arranged relative to an emitting end of the supersonic wave emitting head, and a top point of the diffuser and the emitting end are arranged in an opposite manner. According to the embodiment of the invention, the supersonic waves originally propagated in a directed manner are turned to the supersonic waves propagated diffusely in an annular direction, that is to say, the supersonic waves propagated in a directed manner are turned to the supersonic waves propagated in an omnidirectional manner, and a supersonic wave receiving device is enabled to receive supersonic wave signals at any angle of a ring, so that the receiving range of the supersonic waves is improved, the accuracy of automatic following of the balance vehicle is further improved, and the usage experience of the balance vehicle is improved.
Owner:INMOTION TECH CO LTD
Cleaning box and sweeping robot thereof
PendingCN111671361AExpand the scope of receptionSolve the problem of receiving blind spotsAutomatic obstacle detectionTravelling automatic controlParticulatesMechanical engineering
The invention discloses a cleaning box and a sweeping robot thereof. The cleaning box is at least used for collecting particulate matter, a dust collecting cavity is formed in the cleaning box, the cleaning box further comprises a shell, the shell is of a transparent structure, the dust collecting cavity is located in the shell, at least one receiving head used for receiving signals is installed in the dust collecting cavity, and the signals at least comprise infrared signals. According to the cleaning box and the sweeping robot thereof, the problems that an existing sweeping robot has a blindarea when receiving signals of a remote controller, attractiveness is affected, the structure is complex, and cost is high are solved. Meanwhile, the problem that an integrated dust box water tank ofan existing floor sweeping robot limits the situation that the dust box cannot be independently installed on the floor sweeping robot is solved, and the problem that the volume of the dust box cannotbe independently increased, so that little garbage can be contained in the dust box is solved.
Owner:杭州匠龙机器人科技有限公司
A diffuse fire smoke detector and its concentrator
ActiveCN105116528BIncrease the areaExpand the scope of receptionFire alarmsCondensersScattered lightEngineering
The invention discloses a light concentrator for a scattering fire smoke detector, which comprises a light concentrator shell, the internal reflection surface of the light concentrator shell is a compound parabolic reflective surface, and light beams are arranged at the front and back ends of the light concentrator shell respectively. The entrance and the light exit. The light entrance includes an end light entrance and a side light entrance. The side light entrance is provided on the side of the concentrator shell and intersects with the end light entrance. The present invention also proposes a scattering type fire smoke detector, which collects scattered light from smoke particles in the optical detection chamber by using the light collector for the above scattering type fire smoke detector. In the present invention, the side light entrance is set on the concentrator, which increases the area of the light entrance, increases the range of receiving scattered light, and improves the ability of the concentrator to collect scattered light, thereby improving fire smoke detection detection sensitivity and detection accuracy.
Owner:INST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA
Underwater acoustic communication device and system
PendingCN111490832AImprove emission efficiencyExpand the scope of receptionSonic/ultrasonic/infrasonic transmissionElectromagnetic wave reradiationEngineeringMechanical engineering
The invention is suitable for the field of communication, and provides an underwater acoustic communication device and system, and the device comprises: a multi-source underwater acoustic signal output module which is used for transmitting a multi-source underwater acoustic signal to a water environment; and a first detection assembly which comprises a plurality of laser radar modules, a detectionlight beam of each laser radar module can be focused on one or more space detection points, wherein the first detection assembly detects underwater acoustic signals at the multiple space detection points based on the detection light beams and the Doppler effect generated by acoustic vibration. The multi-source underwater acoustic signal output module improves the transmitting efficiency of underwater acoustic signals. The first detection assembly can detect underwater acoustic signals around the equipment. The underwater acoustic signal receiving range is expanded, the detection aperture / range is multiplied under the condition that the equipment size is not greatly increased, the signal receiving capacity of the underwater acoustic communication device is enhanced, the underwater acousticsignal multi-source resolution, acoustic emission and laser receiving are integrated, receiving and transmitting do not influence each other, and implementation of full duplex underwater acoustic communication is also ensured.
Owner:TIANJIN UNIV
Dust removal and sterilization device for non-woven fabric processing
InactiveCN113684662AEasy to installEasy to eliminateMechanical cleaningPressure cleaningUltraviolet lightsNonwoven fabric
The invention discloses a dust removal and sterilization device for non-woven fabric processing. The dust removal and sterilization device comprises a fixed shell; two non-woven fabric movable grooves are formed in the left side and the right side of the fixed shell; extended pressing plates are arranged on the outer side surfaces of the bottom ends of the two non-woven fabric movable grooves; four ultraviolet lamp mounting blocks are arranged on the left side and the right side of the interior of the fixed shell; and the four ultraviolet lamp mounting blocks are distributed at the upper ends and the lower ends of the inner side surfaces of the two non-woven fabric movable grooves. According to the device, a sealing structure is adopted for dust removal and sterilization, so that dust is effectively prevented from floating indoors during dust removal, and the dust is prevented from damaging human health; a dust-free cloth fixing structure is arranged on the outer side of the device, so that dust-free cloth can be conveniently positioned and cleaned; a non-woven fabric vibration structure is arranged in the device, so that dust accumulated in gaps of the dust-free cloth is vibrated into air through high-frequency vibration; and the dust floating in the device is absorbed through an arranged dust suction device.
Owner:胡星
Cross-scene video crowd understanding two-channel network method based on aerial view angle
PendingCN113269131AEasy to analyzeExpand the scope of receptionImage enhancementImage analysisCrowd countingRgb image
The invention discloses a cross-scene video crowd understanding two-channel network method based on an air view angle, which belongs to the technical field of image recognition counting, analyzes the relationship between people and background and determines a crowd number under bird's-eye view crowds by establishing a two-channel crowd counting network model and fully utilizing inter-frame information and input through RGB images of two-path streams. According to the method, the receiving range of the convolution kernel is expanded by the hollow convolution layer, so that the spatial context information in the element is enriched, the relationship between the person and the background is better analyzed, the optical flow and frame difference information is extracted by the double-flow crowd counting model to serve as additional branches, the generalization ability of the model in different scales and time is improved, background noise generated in cross-scene testing is reduced, the number of crowds is automatically known from visual data collected by the unmanned aerial vehicle, negative effects in the shooting process of the unmanned aerial vehicle are reduced, and the screening and observation capability of the number of crowds is improved through optimization of a network structure.
Owner:广东蓝鲲海洋科技有限公司
Multi-scale enhanced monocular depth estimation method
ActiveCN112785636AHigh resolutionRealize the feature extraction functionImage enhancementImage analysisFeature extractionRgb image
The invention provides a multi-scale enhanced monocular depth estimation method, which comprises the following steps: step 1, inputting a single RGB image, and then performing multi-scale feature extraction on the RGB image by adopting a context and receptive field enhanced high-resolution network CRE-HRNet to obtain a high-resolution first image; step 2, using a residual error expansion convolution unit of a receptive field enhancement module to carry out expansion convolution on the first depth image to obtain a second image; and step 3, capturing long-distance pixel points of the second depth image by using a weighted non-local neighborhood module to obtain a depth image. According to the method provided by the invention, the monocular depth estimation precision is high on the basis of obtaining the feature information of the intermediate layer.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Computer WIFI signal relay amplifier
InactiveCN105978618AExpand the scope of receptionAvoid router situationsRadio transmissionAudio power amplifierThree stage
The invention discloses a computer WIFI signal relay amplifier, and the amplifier comprises a signal input circuit, a first-stage amplification circuit, a second-stage amplification circuit, a third-stage amplification circuit, and a signal output circuit. The signal input circuit is connected with a signal output end of a WIFI receiving module, and is sequentially connected with the signal output circuit through the first first-stage amplification circuit, the second-stage amplification circuit and the third-stage amplification circuit. The signal output end of the signal output circuit is connected with a WIFI transmitting module. Compared with the prior art, the amplifier carries out three-stage amplification of a received WIFI signal, and the amplified signal is transmitted through a WIFI. The circuit can effectively enlarge the WIFI receiving range, avoids a plurality of routers, is convenient to use, and has popularization and application values.
Owner:SHAANXI UNIV OF TECH
Satellite-borne GNSS-S radar ship target signal receiving and direct interference suppression method
ActiveCN114660552AImprove signal to noise ratioExpand the scope of receptionSatellite radio beaconingRadio wave reradiation/reflectionTarget signalRadar
The invention relates to a satellite-borne GNSS-S radar ship target signal receiving and direct interference suppression method. The method comprises the following steps: a, optimizing an antenna; b, optimizing direct interference signal suppression; and c, performing digital beam forming on the GNSS-S signal. According to the invention, weak scattering signals of large-range sea surface ship targets can be received, and direct interference signals of a plurality of navigation satellites can be inhibited.
Owner:BEIJING SATELLITE INFORMATION ENG RES INST
A kind of automatic tracking robot control device and automatic tracking robot
InactiveCN104260092BImplement trackingAchieve positioningProgramme-controlled manipulatorTime informationAutomatic train control
Owner:DALIAN UNIV OF TECH
Signal device for fire-fighting lifesaving
ActiveCN112793514AImprove walking abilityImprove shock resistance and cushioning performanceVehicle componentsEndless track vehiclesDrive wheelMarine engineering
The invention discloses a signal device for fire-fighting lifesaving. According to the technical scheme, the signal device is characterized in that the signal device comprises signal terminal equipment and a bottom plate used for installing the signal terminal equipment, two symmetrical driving wheels are fixedly installed on the lower surface of the bottom plate, and the two driving wheels are sleeved with two crawler belts; a mounting groove is formed in the upper surface of the bottom plate, a plurality of damping mechanisms are fixedly mounted in the mounting groove, a protection box is mounted at the upper ends of the damping mechanisms, a first moving mechanism and a second moving mechanism are fixedly mounted in the protection box, and the first moving mechanism and the second moving mechanism are the same in structure. A first servo motor is fixedly installed on the upper surface of the protection box, a crawler belt arranged on a driving wheel in a sleeving mode is beneficial to improving the walking capacity of the device on a muddy road surface and a road surface with a large slope, an arranged damping mechanism is beneficial to improving the overall anti-seismic buffering performance of the device, and the device is prevented from being damaged.
Owner:山东常安消防科技有限公司
Mobile payment through-connection-bridge communication distance balanced through-connection-bridge antenna
ActiveCN102544709BHigh gainLarge coil areaAntenna arraysRadiating elements structural formsSubscriber identity moduleMobile payment
A mobile payment through-connection-bridge communication distance balanced through-connection-bridge antenna comprises a 13.56MHz through-connection-bridge antenna, an outer ring helical antenna and an 8-shaped antenna formed by connecting two reversed rounding spiral coils in series. The 8-shaped antenna is inlaid in a ring of the outer ring helical antenna and is next to the ring of the outer ring helical antenna, the 13.56MHz through-connection-bridge antenna is located in a ring of a 13.56MHz reader antenna, and the outer ring helical antenna and the 8-shaped antenna are connected with respective through-connection-bridge chips. The antenna uses the through-connection-bridge chip with low receiving gain to connect the helical antenna which is arranged on the periphery and has a small number of rings to mainly receive mobile phone signals with weak shield, uses the 8-shaped antenna which is formed by series-opposing connection coils, arranged in the inner ring, and has a large number of rings to receive mobile phone subscriber identity module (SIM) sending signals with strong shield, uses the same 13.56MHz antenna for load debugging, can receive various signals sent by the mobile phones, enables the signals to be sent to the reader in the load debugging mode, and completes a signal transmission function from the mobile phones to the reader.
Owner:SHANGHAI QUANRAY ELECTRONICS
Network data prediction method
PendingCN114337930AEnd earlyReduce power consumptionPower managementError preventionEngineeringOpen Systems Interconnection
Owner:REALTEK SEMICON CORP
Device and method for single-shot signal-to-noise ratio measurement based on optical Kerr shutter
ActiveCN104296883BOvercoming the disadvantage of low dynamic rangeImprove time resolutionInstrumentsSignal-to-noise ratio (imaging)Beam splitting
The invention relates to a one-time signal-to-noise ratio measuring device and method based on a optical Kerr shutter. The measuring device comprises a beam splitting unit used for carrying out beam splitting on signal light to be measured, a to-be-measured signal light channel used for the signal light to be measured to pass through, the optical Kerr shutter and a detecting device, wherein the optical Kerr shutter is formed by two polarization devices with optical Kerr media perpendicular to the polarization direction, and the detecting device is used for receiving and detecting measured data. According to the one-time signal-to-noise ratio measuring device and method based on the optical Kerr shutter, time resolution is high, a time window is large, the spectrum receiving range is large, the structure is simple, the measuring device is convenient to use and practical, and the cost is low.
Owner:XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
High-speed information check system based on bank money box transfer
InactiveCN106372691AImprove clarityImprove qualityCo-operative working arrangementsClosed circuit television systemsInformation transmissionSignal processing circuits
The invention discloses a high-speed information check system based on bank money box transfer. The system comprises a far-end server, a sub controller, a display screen, a high definition camera, an RFID card reader, an RFID reader-writer and an RFID access door, wherein an image fidelity circuit is connected in series between the high definition camera and the sub controller, an anti-interference transmission circuit is connected in series between the RFID reader-writer and the sub controller, a strong signal reception circuit is connected with the RFID card reader, and the RFID access door comprises an RFID access door body, and an access card reader and a signal processing circuit which are arranged on the RFID access door body. The system is advantaged in that external interference on information transmission can be better reduced, an integral signal identification degree of the system is improved, multiple authentication modes are combined, and system use safety, precision and response speed are improved.
Owner:SICHUAN JINTOU FINANCIAL ECONOMIC SERVICE
Radio frequency interference intensity detection system and method
PendingCN114785436AExpand the scope of receptionSolve the problem of receiving limitationsTransmission monitoringHigh level techniquesSoftware engineeringRadio frequency
The invention discloses a radio frequency interference intensity detection system and method, the system comprises a hardware system and a detection system, the hardware system is composed of hardware equipment, and the hardware equipment comprises a detection machine body, a control key, an indicating lamp, an IIC interface, a UART interface and a liquid crystal screen. According to the radio frequency interference intensity detection mode, a double-antenna frequency division detection mode is adopted, the receiving mode of interference signals in low-frequency and high-frequency interval ranges is realized, and the receiving range of the interference signals is expanded; meanwhile, for the radio frequency interference intensity, the radiation intensity under different gains of the signal and the radiation intensity after frequency and power interpolation in radiation are calculated, in cooperation with the calculation of interference time, the comprehensiveness of radio frequency interference signal detection is effectively achieved, and through the calculation of the two kinds of radiation intensity, the detection accuracy is improved. Errors generated by radio frequency interference intensity detection are effectively reduced, and the accuracy of radiation intensity detection is ensured.
Owner:上海云表信息科技有限公司
A computer wifi signal relay amplifier
InactiveCN105978618BExpand the scope of receptionAvoid router situationsRadio transmissionAudio power amplifierThree stage
Owner:SHAANXI UNIV OF TECH
Infrared video monitoring system
InactiveCN106454232AHigh sensitivityExpand the scope of receptionTelevision system detailsColor television detailsVideo monitoringMicrocomputer
The invention discloses an infrared video monitoring system, which comprises an infrared receiving circuit, a single-chip microcomputer, a reset circuit, an amplifying circuit and a communication circuit, wherein the single-chip microcomputer is respectively connected to the amplifying circuit, the infrared receiving circuit and the communication circuit; the amplifying circuit is also connected to an LED dynamic display circuit; the communication circuit is also respectively connected to N decoding circuits; and output ends of the N decoding circuits are all connected to image acquisition equipment. According to the infrared video monitoring system, through using an operational amplifier U2, a chip U1 and a chip U3, a received infrared signal can be accurately fed back to a chip U4 to output, so that the sensitivity and the receiving range of an infrared receiver are improved, and furthermore, the circuit structure is simple, so that the manufacturing cost and the manufacturing difficulty are reduced, and the infrared video monitoring system is suitable for promotion and application.
Owner:GUANGXI UNIV
Mobile terminal wireless power supply system
ActiveCN104092315BEasy to chargeEasy to useElectromagnetic wave systemCircuit arrangementsAnti jammingStructure of Management Information
The invention belongs to the technical field of wireless communication, in particular to a mobile terminal wireless power supply system. The mobile terminal wireless power supply system structurally comprises a transmitting antenna (1), a wireless energy transmitter (2) and a wireless energy receiving device (3). The wireless energy transmitter (2) comprises an encoder (21), a basic transmitting circuit (22) and a frequency hopping transmitting circuit (23). The wireless energy receiving device (3) comprises a frequency hopping receiving circuit (31), a mobile terminal wireless power supply device (32) and a decoder (33). The mobile terminal wireless power supply system has the advantages of being convenient to use, capable of achieving non-contact-type charging, large in coverage range, strong in anti-jamming capacity, high in safety and the like.
Owner:长春市奥霏办公设备有限公司
Mobile terminal wireless power supply system
ActiveCN104092315AEasy to chargeEasy to useElectromagnetic wave systemCircuit arrangementsAnti jammingContact type
The invention belongs to the technical field of wireless communication, in particular to a mobile terminal wireless power supply system. The mobile terminal wireless power supply system structurally comprises a transmitting antenna (1), a wireless energy transmitter (2) and a wireless energy receiving device (3). The wireless energy transmitter (2) comprises an encoder (21), a basic transmitting circuit (22) and a frequency hopping transmitting circuit (23). The wireless energy receiving device (3) comprises a frequency hopping receiving circuit (31), a mobile terminal wireless power supply device (32) and a decoder (33). The mobile terminal wireless power supply system has the advantages of being convenient to use, capable of achieving non-contact-type charging, large in coverage range, strong in anti-jamming capacity, high in safety and the like.
Owner:长春市奥霏办公设备有限公司
Atomic time signal receiving system and method
ActiveCN102307088BImprove qualityExpand the scope of receptionFibre transmissionElectromagnetic receiversTransport systemMicrowave signals
The invention discloses an atomic time signal receiving system and method. The system comprises a microwave detection part and a microwave signal processing part, wherein the microwave detection part is used to couple an optical signal at an atomic time signal receiving position at any position in an optical fiber link and then demodulate a microwave signal on the optical signal; the microwave signal processing part is used to reproduce an atomic time signal of which the phase is locked on a reference clock on the basis of the demodulated microwave signal; and the microwave detection part can respectively couple parts of the optical signals transmitted along the opposite directions in the optical fiber link and then perform a demodulation process. According to the atomic time signal receiving system, atomic time signal of which the phase is locked on the reference clock can be reproduced at any position in the compensated signal transmission system of the optical fiber link, thus the application range of the atomic time signal fiber transmission system can be enlarged.
Owner:北京普测时空科技有限公司
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