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41results about How to "Improve signal processing efficiency" patented technology
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Driving-and-driven combined boosting type flexible lower limb exoskeleton
The invention relates to a driving-and-driven combined boosting type flexible lower limb exoskeleton. The driving-and-driven combined boosting type flexible lower limb exoskeleton comprises a foot (1), a shank (3), a thigh (5) and a back frame (7), and the shank (3) is rotatably connected with the foot (1) through an ankle joint (18). The driving-and-driven combined boosting type flexible lower limb exoskeleton is characterized in that the lower end of the shank (3) is connected with an ankle joint pressing plate (9), the ankle joint pressing plate (9) abuts against an ankle joint spring (2) for foot boosting, the ankle joint spring (2) is installed in a spring base (201), and the spring base (201) is fixedly connected with the foot (1); the upper end of the shank (3) is hinged to the lower end of the thigh (5) through a knee joint (19); the upper end of the thigh (5) is connected with the back frame (7) through a hip joint (6). The driving-and-driven combined boosting type flexible lower limb exoskeleton is simple in structure and convenient to control.
Owner:PLA UNIV OF SCI & TECH
Electrical cochlea speech processor and processing method with signal compression in wide dynamic range
ActiveCN102579159AImprove signal processing efficiencyAvoid distortionEar treatmentProsthesisFrequency spectrumSpeech Processor
The invention discloses an electric cochlea speech processor and processing method with signal compression in a wide dynamic range. The electric cochlea speech processing method comprises the following steps that: a processing unit performs pre-emphasis processing and frequency division processing on transmitted acoustic signals by a frequency division module, and processing results are combined into M channels; according to a comfortable threshold parameter or a perception threshold parameter measured in advance of the M channels of an electric cochlea implanted person, a compression unit calculates an acoustic signal intensity parameter corresponding to an electric stimulation perception threshold or an acoustic signal intensity parameter corresponding to a comfortable threshold by an acoustic-electric compression function; then by adopting the parameter as an inflection point, and according to a compression curve in the wide dynamic range enveloped by a frequency spectrum, the compression unit calculates sound intensity after compression of each channel; and finally, after wide-dynamic compression, output sound intensity is subjected to acoustic-electric stimulus compression and then is output. The electric cochlea speech processor enhances signal processing efficiency and improves individual speech recognition ability of the electric cochlea implanted person.
Owner:ZHEJIANG NUROTRON BIOTECH
S-band receiving-transmitting integrated processor system
InactiveCN106059599AFast transmissionHigh degree of integrationTransmissionDigital signal processingIntermediate frequency
The invention discloses an S-band receiving-transmitting integrated processor system. The S-band receiving-transmitting integrated processor system comprises a chassis, wherein a digital signal processing single machine and an analog channel receiving-transmitting single machine are arranged in the chassis; the digital signal processing single machine comprises an FMC (FPGA Mezzanine Card) data acquisition daughter card and a signal processing mother board; the FMC data acquisition daughter card comprises an ADC (Analog-to-Digital Conversion) module and a DAC (Digital-to-Analog Conversion) module; the signal processing mother board comprises an FPGA (Field Programmable Gate Array), a DSP (Digital Signal Processor) and an ARM (Advanced RISC Machine); the DSP communicates with the FPGA through a DFE interface according to a 204A / B communication protocol; external interfaces of the digital signal processing single machine are two micro rectangular connectors; and an external interface of the analog channel receiving-transmitting single machine is an SMA-K adapter. Through adoption of the S-band receiving-transmitting integrated processor system, down conversion, amplification and filtering of forward S-band signals can be finished integrally; ADC, digital down conversion, dispreading, demodulation and decoding are performed on forward intermediate-frequency signals; backwardly-transmitted data are encoded and modulated; backward intermediate-frequency signals are simulated through DAC output; and up conversion and amplification are performed on backward intermediate-frequency signals, and S-band radio frequency signals are output.
Owner:SICHUAN SDRISING INFORMATION TECH
Magnetic field aggregation component and non-contact leakage current measurement device and method
InactiveCN110672902AIncrease the magnetic field strengthMeet the measurement accuracy requirementsElectrical testingCurrent measurements onlyElectric power equipmentPower equipment
The invention discloses a magnetic field aggregation component and a non-contact leakage current measurement device and method. The magnetic field aggregation component comprises at least two concentrically arranged magnetic field concentrators, wherein longitudinal air gaps are arranged in the magnetic field concentrators, a transverse air gap is arranged between two adjacent magnetic field concentrators, and a magnetic sensor is placed in the transverse air gap. The magnetic field aggregation component of the invention adopts four air gap structures, so that the widths of the longitudinal air gaps of the magnetic field concentrators are no longer limited by the size of the magnetic field sensor; the magnetic field strength of the edges of the longitudinal air gaps is remarkably improvedthrough the minimum widths of the longitudinal air gaps; and two superimposed edge magnetic fields are simultaneously measured by the magnetic sensor located in the transverse gap, the measured magnetic field strength is much larger than the magnetic field strength of a traditional single air gap structure, a signal-to-noise ratio is improved and then the leakage current with only a few milliampsto hundreds of milliamps can be measured, and the requirement for the precision of earth leakage current measurement of power equipment is met.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
Bias voltage control method, bias voltage control device, modulator, and storage medium
ActiveCN110971306ABias Control ImplementationHigh control precisionElectromagnetic transmissionEngineeringElectrode pair
The embodiment of the invention discloses a bias voltage control method. The method comprises the following steps: acquiring a bias voltage control point at a first moment corresponding to each phasemodulation electrode in a plurality of phase modulation electrodes of a modulator; obtaining a first locking coefficient corresponding to each phase modulation electrode; based on the bias voltage control point and the first locking coefficient of the first moment corresponding to each phase modulation electrode, determining the bias voltage adjustment amount of each phase modulation electrode corresponding to the second moment, and obtaining a plurality of bias voltage adjustment amounts of the plurality of phase modulation electrodes corresponding to the plurality of second moments; and performing bias control on the modulator based on the bias adjustment amounts at the plurality of first moments. The embodiment of the invention further discloses a bias control device, a modulator and astorage medium.
Owner:WUHAN OPTICAL VALLEY INFORMATION OPTOELECTRONICS INNOVATION CENT CO LTD +1
Design method of separable two-dimensional FIR filter with sparse coefficient
ActiveCN110365314AReduce the number of coefficientsExact coefficientDigital technique networkDesign optimisation/simulationAlgorithmPerformance index
The invention provides a design method of a separable two-dimensional FIR filter with a sparse coefficient, and relates to a sparse algorithm combining an iterative reweighted l1 norm and a greedy search technology. The design method is different from a conventional method as the design method uses a sparse algorithm in the design of the separable two-dimensional FIR filter for the first time, wherein since the frequency response function of the separable two-dimensional FIR filter is a non-convex problem, and the l1 norm method cannot be directly applied, the design method solves the problemby fixing some coefficients and maximizing the number of zero coefficients in the rest coefficients at the same time. The design method has the advantages that the hardware complexity for realizing the two-dimensional FIR filter is reduced; the signal processing efficiency is improved; and the trust region iterative gradient search technology is fused in the design process, so that the coefficientof the filter is more accurate, and the obtained performance index of the filter has more superiority.
Owner:HANGZHOU DIANZI UNIV
Electrical cochlea speech processor and processing method with signal compression in wide dynamic range
ActiveCN102579159BImprove signal processing efficiencyAvoid distortionEar treatmentProsthesisFrequency spectrumSpeech Processor
Owner:ZHEJIANG NUROTRON BIOTECH
Signal processor of Doppler weather radar
ActiveCN109270536AFast operationImprove scalabilityICT adaptationRadio wave reradiation/reflectionRadar systemsWeather radar
The invention discloses a signal processor of a Doppler weather radar. The signal processor comprises a signal processing unit, wherein the signal processing unit comprises a signal receiving module,a signal storage module, a signal analysis module, a filtering module, a signal processing module, a quality control module and a parameter configuration module. The signal processor solves the problem that the difficulty in research and development as well as simulation debugging of a signal processing algorithm is great, the improvement and function upgrading of the signal processing algorithm are difficult, a universal server is used as a hardware platform of the signal processing unit, the operation speed is fast and the expansibility is high, a software-based design is adopted, functionsof a radar system are enhanced or expanded through reconstruction and continuous improvement of software, and rapid diversification detection is achieved.
Owner:ANHUI SUN CREATE ELECTRONICS
Comprehensive intelligent building fire monitoring system based on bus RS485
The invention discloses a comprehensive intelligent building fire monitoring system based on the RS485 bus. connected conversion module, a microprocessor connected to the conversion module, and a monitoring room computer connected to the microprocessor; the detection device consists of a processing chip, a signal amplification circuit connected to the processing chip, and a smoke sensor , temperature sensor and sound and light alarm circuit. The detection device of the present invention can send the detected signal to the wireless receiving module through the wireless network, avoiding complicated line laying and saving costs; at the same time, the present invention uses the wireless network to transmit signals, which can avoid circuit leakage caused by fire in the event of a fire more serious hazards.
Owner:CHENGDU SIBOTE TECH CO LTD
Gabor transformation based method and device for extracting and analyzing breathing and heartbeat signals
InactiveCN105919568AEfficient extractionImprove signal processing efficiencySensorsMeasuring/recording heart/pulse rateTemporal changeFrequency spectrum
The invention provides a Gabor transformation based method and device for extracting and analyzing breathing and heartbeat signals. The method comprises following steps: S1, radar echo signals are subjected to Gabor transformation, and time-frequency power distribution signals of the transformed signals are calculated; S2, the time-frequency power distribution signals are subjected to frequency spectrum weighted average operation, and a frequency spectrum centroid changing curve is obtained; S3, the frequency spectrum centroid changing curve is subjected to filtering operation, and breathing signals and heartbeat signals are obtained; S4, the breathing signals and the heartbeat signals are subjected to the Gabor transformation, and breathing frequency changing with time and heartbeat frequency changing with the time are obtained. With the adoption of the method and the device, the breathing frequency and heartbeat frequency changing with time, the signals and the frequency change of the signals can be effectively extracted.
Owner:BEIJING QUALITY & ZEAL INFORMATION TECH CO LTD
Magnetic field gathering assembly, non-contact leakage current measuring device and measuring method
ActiveCN111983280AIncrease the magnetic field strengthMeet the precision requirementsShort-circuit testingCurrent measurements onlyElectric power equipmentCondensed matter physics
The invention discloses a magnetic field gathering assembly, a non-contact leakage current measuring device and a measuring method. The magnetic field gathering assembly comprises at least two magnetic field gathering devices which are concentrically arranged, longitudinal air gaps are formed in the magnetic field gathering devices, transverse air gaps are formed between every two adjacent magnetic field gathering devices, and the transverse air gaps are used for containing magnetic sensors. The magnetic field gathering assembly adopts a four-air-gap structure; the longitudinal air gap width of the magnetic field gathering devices is no longer limited by the size of the magnetic field sensors; due to the minimized longitudinal air gap width, the magnetic field intensity of the edges of thelongitudinal air gaps is remarkably improved; the magnetic field sensors located in the transverse air gaps measure two overlapped edge magnetic fields at the same time, the measured magnetic field intensity is far larger than the magnetic field intensity of a traditional single-air-gap structure, the signal-to-noise ratio is improved, then the leakage current with the effective value only ranging from several milliamperes to hundreds of milliamperes can be measured, and the precision requirement of electric power equipment for ground leakage current measurement is met.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
Signal receiving and processing method and system in mobile communication
ActiveCN102281092AImprove signal processing efficiencyReduce operational overheadSpatial transmit diversityVIT signalsSignal processing
The invention discloses a signal receiving and treating method in mobile communication and a system thereof. The signal receiving and treating method in mobile communication comprises the following steps of: receiving a signal; judging whether the received signal contains a valid signal activating region or not according to a preset judging conduction; if so, carrying out signal treatment of a receiving terminal on the signal in the signal activating region; or no-carrying out the signal treatment of the receiving terminal on the received signal. The signal receiving and treating method in mobile communication and the system thereof have the capabilities of improving the signal treating efficiency of the receiving terminal and reducing the waste of treating resources of the receiving terminal and the operation cost of a receiver.
Owner:COMBA TELECOM SYST CHINA LTD
Compressed sensing radar interference suppression sparse observation method
ActiveCN112526497AImprove signal processing efficiencyImprove object detection performanceRadio wave reradiation/reflectionInterference ratioObservation data
The invention relates to a compressed sensing radar interference suppression sparse observation method, aiming at the characteristics of a compressed sensing radar, starting from the perspective of observation matrix design, a structured observation matrix is utilized to firstly perform modulation additional phase modulation on each emission pulse of the compressed sensing radar so as to effectively separate a real target echo from an interference signal; interference signals are suppressed while target echoes are accumulated, and the signal-to-interference ratio is increased; meanwhile, a sparse sampling observation matrix is utilized to further compress interference suppression observation data, so signal processing efficiency of the compressed sensing radar is further improved; secondly, an optimization solving problem is proposed for interference suppression observation, and efficiency of solving the optimization problem is improved by increasing constraint conditions; and finally,by solving the sparse optimization solving problem, accurate estimation of the target parameters of the compressed sensing radar under the interference background is realized, so the spatial interference signal is actively suppressed, and the target detection performance of the compressed sensing radar under the interference background is improved.
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY
Multi-channel signal transformer bank
PendingCN119274918Areduce volumeImprove transmission efficiencyTransformers/reacts mounting/support/suspensionTransformers/inductances coils/windings/connectionsVoltage sourceHarmonics
The invention provides a multi-channel signal transformer bank. The multi-channel signal transformer bank comprises an insulating bottom plate and a plurality of transformers, the plurality of transformers are arranged on the insulating bottom plate; the transformer comprises a magnetic core, a primary coil and a secondary coil, wherein the primary coil and the secondary coil are wound on the magnetic core. A plurality of primary leading-out ends are led out from the primary coil through a center tap, and a plurality of secondary leading-out ends are led out from the secondary coil through a plurality of windings. According to the transformer bank, the plurality of transformers are arranged on the same insulating bottom plate, the structure is compact, the integration degree is high, the size of the whole transformer bank is reduced, and the signal processing efficiency is greatly improved. The primary coil adopts a center tapped mode, so that the effects of adjusting output voltage, preventing harmonic interference, providing a stable voltage source, reducing common-mode current / voltage and providing direct-current bias for Rx / Tx signals in the transformer can be effectively achieved; and the secondary coil adopts a multi-path winding so as to meet various converted voltage values in use, and the transmission efficiency of the transformer bank is improved.
Owner:SHENZHEN ZHENHUA FU ELECTRONICS
Gear early fault diagnosis method based on PSO-MCKD
PendingCN119669958AReduce background noiseReduced characteristicsGeometric CADBiological modelsFeature extractionAlgorithm
The invention belongs to the technical field of electric vehicle speed reducers, and relates to a PSO-MCKD-based gear early fault diagnosis method, which comprises the following steps: firstly, adaptively optimizing parameters L and T in an MCKD algorithm by applying PSO for an acquired gear early fault signal containing a relatively weak gear early fault signal; based on the MCKD algorithm after parameter optimization, impact component enhancement is carried out on the early fault signal; thirdly, analyzing the enhanced signal by using an envelope spectrum analysis method, and comparing the enhanced signal with a theoretical fault feature; and finally, outputting a diagnosis result. According to the method, the problem that the parameters L and T of the MCKD cannot be optimal at the same time is solved, adaptive optimization is carried out on the parameters of the MCKD by adopting PSO, the problem that early fault features of the gear cannot be accurately extracted is solved, noise reduction is carried out on an original signal by using the optimized MCKD, and envelope spectrum demodulation is carried out to extract the fault features, so that the accuracy of the fault feature extraction is improved. And the efficiency and accuracy of early weak fault feature diagnosis of the gear are improved.
Owner:CHINA FAW CO LTD
RS485 bus based intelligent building fire hazard monitoring system capable of onsite alarm
InactiveCN105844837AHigh precisionHigh speedFire alarm electric actuationFire alarm smoke/gas actuationIntelligent lightingMonitoring system
The invention discloses an on-site alarm intelligent building fire monitoring system based on the RS485 bus. device, and a monitoring room computer connected to the microprocessor; the detection device is composed of a processing chip, a smoke sensor connected to the processing chip, a temperature sensor, and an audible and visual alarm circuit; the processing chip is connected to the conversion module connected. The present invention adopts the RS485 bus to transmit signals, which improves the accuracy and speed of signal transmission, and makes the present invention more networked and intelligent. The detection device of the present invention is provided with an audible and visual alarm circuit, which can send out an alarm when a fire breaks out on the floor, and the people in the floor pass through to evacuate urgently.
Owner:CHENGDU SIBOTE TECH CO LTD
A real-time rendering method for virtual auditory environment
ActiveCN102572676BImplement dynamic processingReduce computationStereophonic systemsSound sourcesHeadphones
The invention discloses a real-time rendering method for a virtual auditory environment. According to the method, the initial information of the virtual auditory environment can be set, and a head trace tracker is used for detecting the dynamic spatial positions of six degrees of freedom of motion of the head of a listener in real time, and dynamically simulating sound sources, sound transmission, environment reflection, the radiation and binaural sound signal conversion of a receiver, and the like in real time according to the data. In the simulation of the binaural sound signal conversion, a method for realizing joint processing on a plurality of virtual sound sources in different directions and at difference distances by utilizing a shared filter is adopted, so that signal processing efficiency is improved. A binaural sound signal is subjected to earphone-ear canal transmission characteristic balancing, and then is fed to an earphone for replay, so that a realistic spatial auditory event or perception can be generated.
Owner:SOUTH CHINA UNIV OF TECH
Synaptic transistor device with wide spectral response and method of fabrication thereof
ActiveCN115666142Bimplement responseincrease currentPhotovoltaic energy generationHeterojunctionSpectral response
A synaptic transistor device with a wide spectral response is characterized by comprising: a floating gate layer for capturing light signals of different wavelengths to generate photogenerated carriers; a tunneling layer disposed on the floating gate layer for storing photogenerated carriers generated within the floating gate layer; an active layer disposed on the tunneling layer for transporting charge carriers and photogenerated carriers; source and drain electrodes, two source and drain electrodes symmetrically disposed on the active layer for providing a driving voltage to drive the flow of charge carriers and photogenerated carriers in the active layer, forming a circuit; a substrate disposed at the bottom of the synaptic transistor device for serving as the basis for fabricating the synaptic transistor device; a gate electrode disposed on the substrate for inducing charge carriers in the active layer; and an insulating layer disposed between the gate electrode and the floating gate layer for isolating the gate electrode and the active layer from conduction, wherein the floating gate layer is made of quantum dots with a wide spectral response, and a heterojunction structure is formed between the floating gate layer and the active layer.
Owner:TONGJI UNIV
A Fault Diagnosis Method for Rolling Bearings Based on SSae and BA-ELM
ActiveCN110470477BSuppress modal aliasingImprove signal processing efficiencyMachine part testingCharacter and pattern recognitionLearning machineAutoencoder
The present invention proposes a rolling bearing fault diagnosis method based on SSAE and BA-ELM, comprising the following steps; Step A1: collecting four types of time-domain signals of rolling bearing normal, rolling element fault, outer ring fault, and inner ring fault; Step A2: Iterative filter decomposition is performed on each sample of each group of time domain signals, and eigenmode components containing different time scales are obtained from each sample; Step A3: Calculate the relative energy and arrangement of the first K eigenmode components of each sample Entropy; Step A4: Calculate the time-domain features of each group of time-domain signals; Step A5: Use the stacked sparse autoencoder SSAE to reduce the dimensionality of the above features, and use the result of dimensionality reduction as the fault feature; Step A6: Use the bat algorithm to optimize the limit The learning machine BA-ELM realizes the identification of the working state and fault type of the rolling bearing; the invention can solve the problems that the commonly used signal processing methods lack sufficient robustness, the data dimensionality reduction method is difficult to retain the most effective features, and the classification accuracy of different fault degrees is low. .
Owner:FUZHOU UNIV
Micro-LED optical information sensing and storage unit, photonic integrated chip, array and preparation method
ActiveCN113745261AImplement storageSimple structureFinal product manufactureSolid-state devicesHemt circuitsDielectric layer
The invention discloses a Micro-LED optical information sensing and storage unit, a photonic integrated chip, an array and a preparation method. The information sensing and storage unit of the photonic integrated chip comprises a Micro-LED, a smooth layer, a ferroelectric semiconductor, a dielectric layer and a passivation layer which are sequentially aligned with one another and superposed from bottom to top; and the information sensing and storage unit also comprises a source electrode, a drain electrode and a grid electrode, wherein the source electrode and the drain electrode are respectively embedded into two sides of the bottom of the dielectric layer and are in contact with the ferroelectric semiconductor, and the grid electrode is embedded into the bottom of the passivation layer and is located at the middle position above the dielectric layer. According to the micro-LED optical information sensing and storage unit, the photonic integrated chip, the array and the preparation method of the invention, synchronous sensing and storage of optical information can be realized, the signal processing efficiency is improved, and the circuit structure is simplified. The micro-LED optical information sensing and storage unit has important application prospects in the fields of photon chips and image recognition in the future.
Owner:HUNAN UNIV
A Sparse Observation Method for Compressive Sensing Radar Interference Suppression
ActiveCN112526497BImprove signal processing efficiencyImprove object detection performanceRadio wave reradiation/reflectionInterference ratioObservation data
Owner:CHANGSHU INSTITUTE OF TECHNOLOGY
Signal processing method and device, equipment and storage medium
PendingCN111651716AImprove signal processing efficiencyImprove processing efficiencyTransmissionComplex mathematical operationsInverse discrete fourier transformFilter (signal processing)
The invention discloses a signal processing method and device, equipment and a storage medium, and the method comprises the steps out of performing the inverse discrete Fourier transform (IDFT) of data in N channels at a current moment m by a transmitting terminal, and obtaining a transformation result; determining a displacement frequency K according to the channel number N and the up-sampling multiple L1; determining the current displacement according to the up-sampling multiple L1, the channel number N and the current moment m; during each displacement, performing cyclic left shift on the transformation result according to the current displacement to obtain a displacement result; using a filter subjected to multiphase decomposition and K-time interpolation for filtering in each channel;performing L1-time interpolation on the filtered result in each channel, and performing time delay addition on the data of each channel to obtain output data. Through multiple times of displacement,signal processing with a small sampling multiplying power L matched with a high channel number N is achieved, and the signal processing efficiency is improved.
Owner:北京东土军悦科技有限公司 +1
A multi-channel nuclear power equipment contact scanning device and its working method
ActiveCN113407474BImprove signal processing efficiencyFacilitate later failure analysisElectric digital data processingNuclear powerControl system
The invention discloses a multi-channel nuclear power equipment contact scanning device and its working method, and relates to the technical field of nuclear power plant control systems, including: receiving nuclear power equipment switch contact signals through a multi-channel receiving end; Perform non-operation, and carry out XOR preprocessing with the nuclear power equipment switch contact signal of the corresponding channel through the calculation unit; send the preprocessed nuclear power equipment switch contact signal to the first processing module and the second processing module, so that it can be processed according to The preprocessed nuclear power equipment switch contact signal and configuration information set obtain the contact scanning result; the first processing module judges the fault channel according to its own contact scanning result and the contact scanning result of the second processing module, and according to the preset The polling cycle obtains the order of the failure signals of the switch contacts of the faulty channel core electrical equipment. The contact signals of the field equipment of the nuclear power plant are collected through multiple channels and processed in parallel, realizing a scan with a total of more than 4,000 channels.
Owner:ATOMHORIZON ELECTRIC JINAN CO LTD
Multi-mode short wave transmitter power detection method and device
ActiveCN119316072AHigh precisionImprove stabilityTransmitters monitoringDigital down conversionSoftware engineering
The invention provides a multi-mode short wave transmitter power detection method and device, relates to the technical field of transmitter power detection, and realizes accurate power detection of transmitting signals with different frequencies and different powers in multiple working modes of a transmitter. Comprising the following steps: preprocessing an output signal and a reflection signal of a transmitter and converting into digital signals; performing digital down-conversion processing on the digital signal to form a baseband signal, and obtaining an I-path signal and a Q-path signal; the I-path signal and the Q-path signal of the baseband signal are respectively squared and then summed, and power accumulation is carried out through an accumulator; and calculating power according to a power accumulation result. The method has the advantages of being suitable for various working modes, simple in calculation and accurate in detection.
Owner:CHENGDU HUAQIAN TECH CO LTD
Active and passive combination of augmented flexible lower extremity exoskeleton
The invention relates to a driving-and-driven combined boosting type flexible lower limb exoskeleton. The driving-and-driven combined boosting type flexible lower limb exoskeleton comprises a foot (1), a shank (3), a thigh (5) and a back frame (7), and the shank (3) is rotatably connected with the foot (1) through an ankle joint (18). The driving-and-driven combined boosting type flexible lower limb exoskeleton is characterized in that the lower end of the shank (3) is connected with an ankle joint pressing plate (9), the ankle joint pressing plate (9) abuts against an ankle joint spring (2) for foot boosting, the ankle joint spring (2) is installed in a spring base (201), and the spring base (201) is fixedly connected with the foot (1); the upper end of the shank (3) is hinged to the lower end of the thigh (5) through a knee joint (19); the upper end of the thigh (5) is connected with the back frame (7) through a hip joint (6). The driving-and-driven combined boosting type flexible lower limb exoskeleton is simple in structure and convenient to control.
Owner:PLA UNIV OF SCI & TECH
A Signal Processor for Doppler Weather Radar
ActiveCN109270536BFast operationImprove scalabilityRadio wave reradiation/reflectionICT adaptationWeather radarRadar systems
The invention discloses a signal processor of a Doppler weather radar. The signal processor comprises a signal processing unit, wherein the signal processing unit comprises a signal receiving module,a signal storage module, a signal analysis module, a filtering module, a signal processing module, a quality control module and a parameter configuration module. The signal processor solves the problem that the difficulty in research and development as well as simulation debugging of a signal processing algorithm is great, the improvement and function upgrading of the signal processing algorithm are difficult, a universal server is used as a hardware platform of the signal processing unit, the operation speed is fast and the expansibility is high, a software-based design is adopted, functionsof a radar system are enhanced or expanded through reconstruction and continuous improvement of software, and rapid diversification detection is achieved.
Owner:ANHUI SUN CREATE ELECTRONICS
Mouse
InactiveCN103353800ASimple structureLow costInput/output processes for data processingEngineeringElectrical and Electronics engineering
The invention discloses a mouse. The mouse comprises a front button, a rear button and a main PCB and further comprises two bent leg switches. The front button and the rear button are respectively connected with a button of one bent leg switch, pins of the bent leg switches are connected with a circuit of the main PCB, when the front button or the rear button is pressed, the front button or the rear button pushes the corresponding button of one bent leg switch to squeeze a contact point, the circuit is communicated, and functional signals are generated. Due to the fact that the bent leg switches are arranged on the main PCB, the pins of the bent leg switches are directly connected with the circuit of the main PCB of the mouse, the bent leg switches are just pressed, the functional signals are generated without arrangement of an auxiliary PCB or flex cables, under the condition of achieving identical functions, raw material cost and assembly difficulty are reduced greatly, production efficiency is improved, moreover the structure of the mouse is simpler, and product quality is easier to ensure.
Owner:SHENZHEN TIANJIE ELECTRONICS
A Judgment and Processing Method for Ionospheric Dispersion Effect of Spaceborne SAR
ActiveCN114578310BImprove signal processing efficiencyDispersion Effect SuppressionRadio wave reradiation/reflectionEngineeringAtmospheric sciences
The invention discloses a method for judging and processing spaceborne SAR ionospheric dispersion effects, so as to realize high precision of spaceborne SAR data products and high efficiency of signal processing. Combined with the proposed decision method, the established processing flow includes: using the IRI model to obtain the TEC parameters, and combining the spaceborne SAR system parameters to calculate the characteristic parameters of the ionospheric dispersion effect, namely AIO, QPE and CPE; judging whether AIO, QPE and CPE are Exceed the respective threshold values, and obtain the corresponding decision flag bit; decide whether to perform various correction steps of the ionospheric dispersion effect according to the decision flag bit. By means of the present invention, an efficient processing flow for the correction of the ionospheric dispersion effect of the spaceborne SAR can be established.
Owner:AEROSPACE INFORMATION RES INST CAS
Touch system and control method thereof
ActiveCN104423768BImprove signal processing efficiencyInput/output processes for data processingElectrical conductorControl system
The invention discloses a touch control system. The touch control system comprises an inductive touch panel, a first control module and a second control module, wherein the inductive touch panel comprises a plurality of induction channels, each induction channel comprises a plurality of conductor units which are mutually connected in series, and an induction contact is formed at the series connection of every two conductor units; the first control module is coupled to the induction channels and comprises a stabilized voltage control module and a ground terminal control module, one end of each induction channel is coupled to the stabilized voltage control module, and the other end of each induction channel is coupled to the ground terminal control module; the second control module is coupled to a plurality of induction contacts and is used for correspondingly receiving a plurality of induction signals from the induction contacts and calculating at least one touch control coordinate corresponding to the inductive touch panel according to the induction signals. The invention further discloses a control method of the touch control system. The signal processing efficiency of the touch control system is increased.
Owner:TPK TOUCH SOLUTIONS (XIAMEN) INC
Big data transmission system based on Beidou first-generation communication system
ActiveCN105515641BReal-timeImprove signal processing efficiencyRadio transmissionFirst generationData interface
The invention discloses a big data transmission system based on a big dipper first generation communication system, comprising a receiving antenna, a sending antenna, a signal control panel and a data interface conversion module. The receiving antenna is in connection with the signal control panel; the sending antenna is in connection with the signal control panel; the signal control panel is in connection with the data interface conversion module; through a power divider, incoming signal energy is divided into a plurality of portions, and a plurality of corresponding base-band processing units perform treatment simultaneously, thereby improving signal processing efficiency; meanwhile the information to be transmitted is coded through the base-band processing units; through coordinating a plurality of base-band processing units, a plurality of emission signals are meanwhile processed, and are combined into a path of signals through a combiner for transmission, thereby realizing big data transmission instantaneity and high effectiveness.
Owner:CHENGDU JIUZHOU ELECTRONIC INFORMATION SYSTEM CO LTD