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33 results about "Digital signal conditioning" patented technology
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In digital instrumentation system, especially in digital electronics, digital computers have taken a major role in near every aspect of life in our modern world. Digital electronics is at the heart of computers, but there are lots of direct applications of digital electronics in our world. All these digital electronics need data to be presented to them in a digital format (i.e. the data have to be digitally conditioned). This is called digital conditioning. Since computers are electronics devices, all the information they work with has to be digitally formatted. Therefore, if they are used to control a variable such as temperature, then the temperature has to be represented digitally. That's why we need digital signal conditioning to condition process-control signal to be an approximated digital format.
Analog to digital signal conditioning in optoelectronic transceivers
InactiveUS20050058455A1Transmission monitoringElectromagnetic transmittersTransceiverSignal processing circuits
Circuitry for monitoring the operation of an optoelectronic transceiver includes a sequence of interconnected signal processing circuits for processing an analog input signal and producing a digital result signal, where the analog signal represents one or more operating conditions of the optoelectronic transceiver. The sequence of signal processing circuits include gain circuitry for amplifying or attenuating the analog input signal by a gain value to produce a scaled analog signal, an analog to digital converter for converting the scaled analog signal into a first digital signal, and digital adjustment circuitry for digitally adjusting the first digital signal to produce the digital result signal. The digital adjustment circuitry includes shifting circuitry configured to shift an input digital signal in accordance with a shift value so as to produce a digital shifted signal. The digital result signal is stored in memory in predefined locations accessible by a host.
Owner:II VI DELAWARE INC
Signal conditioning circuit and dual sampling-hold circuit applying the conditioning method
ActiveCN101394163AAvoid residual dysregulation problemsEasy to integrateDigital technique networkElectric analogue storesSignal conditioning circuitsDigital down converter
The invention discloses a signal conditioning circuit, a conditioning method thereof and a double sampling retaining circuit. The signal conditioning circuit comprises a first chopping switch, a programmable gain amplifier, a second chopping switch, a double sampling retaining circuit, an analog-to-digital converter, and a digital reduction sampling filter which are connected in sequence. The double sampling retaining circuit samples outputs of the programmable gain amplifier in two-phase positions of a chopping clock, and the results of two samplings are added. and an added output voltage is transmitted to and processed by the analog-to-digital converter, and the digital reduction sampling filter. Since the double sampling retaining circuit is added, the invention avoids the residual and off-tune problem in a chopping amplifier. Meanwhile, the invention facilitates the integration of a single chip, without the need of external filtering capacitor. Furthermore, a novel sequential control reduces the consumption of a digital signal conditioning circuit based on a chopping amplifier.
Owner:豪威国际控股有限公司
Analog to digital signal conditioning in optoelectronic transceivers
InactiveUS7346278B2Transmission monitoringElectromagnetic transmittersDigital down converterTransceiver
Circuitry for monitoring the operation of an optoelectronic transceiver includes a sequence of interconnected signal processing circuits for processing an analog input signal and producing a digital result signal, where the analog signal represents one or more operating conditions of the optoelectronic transceiver. The sequence of signal processing circuits include gain circuitry for amplifying or attenuating the analog input signal by a gain value to produce a scaled analog signal, an analog to digital converter for converting the scaled analog signal into a first digital signal, and digital adjustment circuitry for digitally adjusting the first digital signal to produce the digital result signal. The digital adjustment circuitry includes shifting circuitry configured to shift an input digital signal in accordance with a shift value so as to produce a digital shifted signal. The digital result signal is stored in memory in predefined locations accessible by a host.
Owner:II VI DELAWARE INC
Micro-current signal extraction system
InactiveCN104020346AAccurate measurementHigh gainMeasurement using digital techniquesElectrical devicesEngineering
The invention relates to a micro-current signal extraction system. A signal is sampled by adopting a high-precision resistor, a current signal is transformed into a voltage signal; the voltage signal is transmitted to an analog signal preconditioning circuit, and sequentially passes through a primary amplification circuit, an analog filter circuit and a secondary amplification circuit to complete analog signal preconditioning; the signal which is subjected to analog signal preconditioning is output to a digital signal preconditioning circuit, and sequentially passes through an A / D (analog to digital) conversion circuit and a range switching and digital filter circuit; and a required micro-current signal is output after the digital signal conditioning is completed. According to the micro-current signal extraction system, the analog signal and digital signal conditionings are combined, a chopper-stabilizer integrated operational amplifier with high gain, high input impedance and high common mode rejection ratio is selected for preposed amplification of the system, 50Hz power line interference is inhibited by a dual-integral AD analog-to-digital conversion chip, and the I / O (input / output) interfaces can be greatly saved by virtue of 4-line serial communication, and high-efficiency and reliable data transmission can be realized. The micro-current signal extraction system can realize accurate measurement on micro-current, and can be used for insulation monitoring of electrical equipment.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER +1
Method and apparatus of digital beamforming for a radar system
ActiveUS10698083B2Affordable and efficient and accurateAntennasRadio wave reradiation/reflectionRadar systemsTransceiver
A system and method of digital beamforming for a monobit phased array radar system includes providing a plurality of monobit analog signals received by at least one antenna to at least one field programmable gate array (FPGA). A plurality of monobit SerDes transceivers within the FPGA convert the plurality of monobit analog signals into a plurality of multibit digital signals, each of the multibit digital signals being modified according to a digital signal conditioning value to calibrate, phase align, and synchronize the digital signals. A digital beam is formed by coherently combining the plurality of digital signals within the FPGA.
Owner:RAYTHEON CO
All-bridge type piezoresistance type pressure sensor digital type signal conditioning chip
ActiveCN101236113ALow costHigh conditioning accuracyForce measurement using piezo-resistive materialsCapacitanceFull bridge
Disclosed is a digital signal conditioning chip of a full-bridge and piezoresistive pressure sensor, which mainly comprises a bandgap reference voltage module, an adjustable gain calculation amplifier module and a digital control unit module. The invention is characterized in that a positive temperature coefficient voltage is generated in the bandgap reference voltage module to provide an energizing voltage for the full-bridge and piezoresistive pressure sensor, the digital control unit module is equipped with a memory and an inner clock circuit, the gain in the adjustable gain switch capacity calculation amplifier is confirmed by the digital control unit module according to the parameter of positive temperature coefficient, zero temperature coefficient and zero output value. The digital signal conditioning chip of a full-bridge and piezoresistive pressure sensor has the advantages that the conditioning chip realizes effect compensation of sensitivity, zero drift compensation and adjustment of zero output, and is high in conditioning accuracy and low in cost.
Owner:WUHAN FINEMEMS
Automatic control system for high-frequency high voltage static dust-collecting power supply based on DSP+FPGA
InactiveCN105785885AStable and reliable signal transmissionImprove stabilityProgramme controlComputer controlAutomatic controlArea network
The invention discloses an automatic control system for a high-frequency high voltage static dust-collecting power supply based on DSP+FPGA. The automatic control system comprises a power supply plate, an analog digital signal conditioning plate, a DSP+FPGA main control panel, an IGBT (Insulated Gate Bipolar Transistor) driving plate and an upper computer, wherein the power supply plate is connected with the analog digital signal conditioning plate, the DSP+FPGA main control panel and the IGBT driving plate; the analog digital signal conditioning plate is used for collecting and conditioning the analog quantity and digital quantity in a main circuit of the dust-collecting power supply and transmitting the voltage analog quantity after being conditioned to the DSP+FPGA main control panel; the DSP+FPGA main control panel combines the collected information for sending a PWM (Pulse Width Modulation) signal and a relay control signal; after being conditioned through the signal conditioning plate, the relay control signal is used for controlling a relay; the PWM signal is used for controlling a full bridge inversion circuit in the main circuit of the dust-collecting power supply through an IGBT driving circuit; and the DSP+FPGA main control panel and the upper computer have data exchange through a CAN (Controller Area Network) bus. The automatic control system provided by the invention has the advantages that the data running is more stable, the system safety is high, the monitoring efficiency is increased and the response speed for output voltage adjustment is quickened.
Owner:ZHENJIANG TIANLI TRANSFORMER
Digital signal conditioning
ActiveUS20110206163A1Spectral/fourier analysisModulated-carrier systemsSignal routingFrequency changer
Methods, systems and other embodiments associated with pre-processing a signal for spectral analysis are presented. A system for pre-processing a digital input signal includes a digital down converter (DDC), an interpolator, and a series of down samplers. The DDC modulates the digital input signal to create a down converted signal. The interpolator re-samples the down converted signal to produce a re-sampled signal. The series of down samplers produces down sampled signals. The multiplexer selects one of the digital input signal, the down converted signal, and the down sampled signals and routes the selected signal to an output line.
Owner:BAE SYST INFORMATION & ELECTRONICS SYST INTERGRATION INC
Appointed subharmonic detection method based on cascade delay signal elimination method
ActiveCN105137179AQuick extractionImprove dynamic response performanceSpectral/fourier analysisHarmonicPower grid
The invention discloses a subharmonic detection method based on cascade delay signal elimination method, comprising steps of obtaining a,b,c three-phase voltage signals of a power grid load terminal through a voltage sensor and a digital regulation circuit, utilizing a Clark transform to obtain a voltage signal under two-phase static coordinate system vabc=[va,vb,vc]<T>, (2) performing filtering process based on the delay signal elimination on the V alpha Beta which is obtained through transformation to obtain voltage signals which only contains odd- number harmonic component and voltage signal which only contains the even-number harmonic component, (3) performing filtering processing based on the cascade delay signal elimination on the voltage signals which only contain the odd-number harmonic wave component and the voltage signals which only contain the even-number harmonic component to obtain the components of positive sequence and negative sequence of any subharnonic, and (4) performing superposition on the harmonic components to obtain a total harmonic signal. The invention is high in detection accuracy and high a practicability.
Owner:STATE GRID GANSU ELECTRIC POWER CORP +2
Method and apparatus of digital beamforming for a radar system
ActiveUS20190067814A1Affordable and efficient and accurateIndividually energised antenna arraysRadio wave reradiation/reflectionDigital signal conditioningVIT signals
A system and method of digital beamforming for a monobit phased array radar system includes providing a plurality of monobit analog signals received by at least one antenna to at least one field programmable gate array (FPGA). A plurality of monobit SerDes transceivers within the FPGA convert the plurality of monobit analog signals into a plurality of multibit digital signals, each of the multibit digital signals being modified according to a digital signal conditioning value to calibrate, phase align, and synchronize the digital signals. A digital beam is formed by coherently combining the plurality of digital signals within the FPGA.
Owner:RAYTHEON CO
Method for realizing general digital quantity regulation
InactiveCN1936857ASolve multiple voltageSolve multi-flowError detection/correctionElectrical resistance and conductanceCurrent channel
This invention discloses a conditioning method for digital signals (DS).It includes the following aspects: adopt isolation MOS relay to condition export signal; adopt jumper clot to condition multi-voltage signal; adopt large current channel to condition single spot signal; adopt two-point difference export to condition difference signal; adopt serial light coupling and fabric method to condition export signal; adopt diode, light coupling and fabric method to condition two spot input signal. The advantages are low cost, small volume, easy to operate.
Owner:CHINA AEROSPACE TIMES ELECTRONICS CORP NO 771 RES INST
Tire pressure monitoring system for motorcycle tyre
InactiveCN101348060AReduce energy consumptionSolution to short lifeElectric signal transmission systemsTyre measurementsLine sensorMotorcycle tyre
The invention provides a tire pressure monitoring system for motorcycle tires, which essentially comprises a wireless sensor, a central receiver and a display; wherein, the wireless sensor is built-in type. An MEMS pressure sensor, a centrifugal switch and a low-frequency antenna are connected with a numerical signal modulation module; the numerical signal modulation module is connected with a wireless transmitting module; the wireless transmitting module is connected with a transmitting antenna; the central receiver is arranged inside a motorcycle; a receiving antenna is connected with a wireless receiving module; the wireless receiving module is connected with a control module; the control module is connected with a display driving module; the display driving module is connected with the display; the display is integrated in a motorcycle dash board. The system has the advantages of adopting a wireless way to monitor the tire pressure of the tires of the motorcycle in a real-time manner and adopting the MEMS pressure sensor and the centrifugal switch to ensure the tire pressure monitoring system to be reliable, durable, low in energy consumption and long in service life and have the function of display alarm.
Owner:上海飞恩微电子有限公司
Analog to digital signal conditioning in optoelectronic transceivers
InactiveCN1961506ATransmission monitoring/testing/fault-measurement systemsElectromagnetic transceiversDigital down converterTransceiver
Circuitry for monitoring the operation of an optoelectronic transceiver includes a sequence of interconnected signal processing circuits for processing an analog input signal and producing a digital result signal, where the analog signal represents one or more operating conditions of the optoelectronic transceiver. The sequence of signal processing circuits include gain circuitry for amplifying or attenuating the analog input signal by a gain value to produce a scaled analog signal, an analog to digital converter for converting the scaled analog signal into a first digital signal, and digital adjustment circuitry for digitally adjusting the first digital signal to produce the digital result signal. The digital adjustment circuitry includes shifting circuitry configured to shift an input digital signal in accordance with a shift value so as to produce a digital shifted signal. The digital result signal is stored in memory in predefined locations accessible by a host.
Owner:FINISAR
Digital signal conditioning
ActiveUS8744025B2Spectral/fourier analysisProduction of permanent recordsFrequency changerDigital down converter
Methods, systems and other embodiments associated with pre-processing a signal for spectral analysis are presented. A system for pre-processing a digital input signal includes a digital down converter (DDC), an interpolator, and a series of down samplers. The DDC modulates the digital input signal to create a down converted signal. The interpolator re-samples the down converted signal to produce a re-sampled signal. The series of down samplers produces down sampled signals. The multiplexer selects one of the digital input signal, the down converted signal, and the down sampled signals and routes the selected signal to an output line.
Owner:BAE SYST INFORMATION & ELECTRONICS SYST INTERGRATION INC
Analog and digital signal conditioning circuit for electrostatic dedusting power control system
InactiveCN106018940AImprove stabilityImprove completenessMeasurement using digital techniquesHigh frequency powerPower control system
The invention discloses an analog and digital signal conditioning circuit for an electrostatic precipitating power supply control system, which includes an analog circuit part and a digital circuit part. The analog circuit part is used to collect and receive analog signals such as voltage, current, and temperature of the main circuit of the power supply, and perform conditioning, filtering, buffering, and photoelectric isolation on related signals; It is used to collect and receive switching signals such as the working state and fault state of the main circuit of the high-frequency power supply, and transmit control quantities such as control logic quantities and PWM waves. The two parts of the circuit are physically isolated, and each has an independent ground wire and power supply. The invention integrates the analog and digital circuits, completes the acquisition, conditioning and isolation of analog and digital signals, reduces the interference of power lines and ground wires, reduces the interference of high-frequency digital circuits to analog circuits, and improves the working stability. Reduced costs.
Owner:ZHENJIANG TIANLI TRANSFORMER
Multi-parameter high-precision water quality detection device
InactiveCN109001259AReasonable designEasy to passTemperature measurement of flowing materialsTesting waterWater qualityTurbidity
The invention discloses a multi-parameter high-precision water quality detection device, which comprises a sensor water tank, an overflow plate, a sediment buffer area, a sensor detection area, a water inlet, a water outlet, a water quality analysis sensor set, a lead, a detector, a display screen, a digital signal conditioning module, a temperature sensor, a pH sensor, a conductivity sensor, a dissolved oxygen sensor, a turbidity sensor, an AD acquisition unit, a display device, a power module, a controller unit, a signal conditioning unit and a data communication unit. Each sensor generatesa millivolt-level feedback signal under the action of 12V excitation voltage, multiple characteristic parameters such as water temperature and conductivity can be measured at the same time, and the measured characteristic parameters are conveniently transmitted to the AD acquisition unit for analysis.
Owner:郑州贯奥仪器仪表有限公司
Signal conditioning circuit and dual sampling-hold circuit
ActiveCN101394163BEasy to integrateReduce power consumptionDigital technique networkElectric analogue storesCapacitanceConverters
The invention discloses a signal conditioning circuit and a double sampling retaining circuit. The signal conditioning circuit comprises a first chopping switch, a programmable gain amplifier, a second chopping switch, a double sampling retaining circuit, an analog-to-digital converter, and a digital reduction sampling filter which are connected in sequence. The double sampling retaining circuit samples outputs of the programmable gain amplifier in two-phase positions of a chopping clock, and the results of two samplings are added. and an added output voltage istransmitted to and processed by the analog-to-digital converter, and the digital reduction sampling filter. Since the double sampling retaining circuit is added, the invention avoids the residual andoff-tune problem in a chopping amplifier. Meanwhile, the invention facilitates the integration of a single chip, without the need of external filtering capacitor. Furthermore, a novel sequential control reduces the consumption of a digital signal conditioning circuit based on a chopping amplifier.
Owner:豪威国际控股有限公司
An electronic non-parking toll collection device and its radio frequency front end and radio frequency receiving method
ActiveCN108257238BAchieve receptionImprove signal qualityTicket-issuing apparatusCo-operative working arrangementsMicrocontrollerSignal conditioning circuits
The invention discloses a radio frequency front end of electronic toll collection equipment. The radio frequency front end comprises multiple radio frequency transceivers different in receiving frequency point range, a digital signal conditioning circuit and a microcontroller, the radio frequency transceivers are used for synchronously receiving radio frequency signals and demodulating and decoding the same to generate digital signals, the digital signal conditioning circuit is used for performing logic and processing on the digital signals output synchronously by the radio frequency transceiver to generate narrow-bandwidth digital signals, and the microcontroller is used for reading the narrow-bandwidth digital signals generated by the digital signal conditioning circuit. By performing logic and processing on the digital signals output by the radio frequency transceivers, narrow-bandwidth receiving can be realized effectively, so that signal quality and accuracy are improved. The invention further discloses the electronic toll collection equipment and a radio frequency receiving method thereof, which have the above advantages.
Owner:SHENZHEN GENVICT TECH
Method for realizing general digital quantity regulation
InactiveCN100555236CConditioning to achieveRealize visualizationError detection/correctionEngineeringDigital signal conditioning
Owner:CHINA AEROSPACE TIMES ELECTRONICS CORP NO 771 RES INST
Electronic toll collection equipment, radio frequency front end and radio frequency receiving method thereof
ActiveCN108257238AAchieve receptionImprove signal qualityTicket-issuing apparatusCo-operative working arrangementsMicrocontrollerSignal quality
The invention discloses a radio frequency front end of electronic toll collection equipment. The radio frequency front end comprises multiple radio frequency transceivers different in receiving frequency point range, a digital signal conditioning circuit and a microcontroller, the radio frequency transceivers are used for synchronously receiving radio frequency signals and demodulating and decoding the same to generate digital signals, the digital signal conditioning circuit is used for performing logic and processing on the digital signals output synchronously by the radio frequency transceiver to generate narrow-bandwidth digital signals, and the microcontroller is used for reading the narrow-bandwidth digital signals generated by the digital signal conditioning circuit. By performing logic and processing on the digital signals output by the radio frequency transceivers, narrow-bandwidth receiving can be realized effectively, so that signal quality and accuracy are improved. The invention further discloses the electronic toll collection equipment and a radio frequency receiving method thereof, which have the above advantages.
Owner:SHENZHEN GENVICT TECH
A small fixed-wing unmanned aerial vehicle guidance computer and guidance method
ActiveCN106950980BImprove design efficiencyOwn speed unchangedAttitude controlPosition/course control in three dimensionsRemote controlControl signal
The invention discloses a miniature fixed wing unmanned aerial plane guidance computer and a guidance method and belongs to the technical field of unmanned aerial plane control. The guidance computer is composed of a power panel and a control signal processing board. The power panel comprises a power transformation circuit module and a simulation reference voltage module. The control signal processing panel comprises an IO driving module, a simulation signal conditioning module, a digital signal conditioning module and a CPU module. The guidance method of the invention can be compatible with the two tracking modes of vertex tracking and fixed distance tracking. The vertex tracking and fixed distance tracking guidance method adopts a unified form, and two types of tracking guidance modes are realized by only sending a variable value instruction. The invention can automatically switch the tracking mode of the unmanned aerial vehicle according to the change of the ground movement speed, can artificially control the tracking mode according to the remote control instruction, and can improve the tracking efficiency and ensure the security when the unmanned aerial vehicle is switching the tracking mode.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Washing machine and its data transmission method, digital signal conditioning device for washing machine
ActiveCN106557050BHigh degree of intelligenceIncrease data transfer rateProgramme controlComputer controlCommunication interfaceLaundry washing machine
Owner:WUXI LITTLE SWAN ELECTRIC CO LTD
Underwater positioning device based on ZYNQ
PendingCN121115013AHigh level techniquesAcoustic wave reradiationComputer hardwareSystem integration
The invention provides a ZYNQ-based underwater positioning device, and belongs to the technical field of underwater positioning, the ZYNQ-based underwater positioning device comprises a positioning array element, a digital signal conditioning module, an analog signal conditioning module, a power management module and an upper computer interaction module, a ZYNQ chip is arranged in the digital signal conditioning module, the PS end of the ZYNQ chip is connected with the upper computer interaction module, and the analog signal conditioning module is connected with the upper computer interaction module. The PL end of the ZYNQ chip is connected with the analog signal conditioning module, the analog signal conditioning module is connected with the positioning array element, a digital power supply circuit and an analog power supply circuit are arranged in the power supply management module, the digital power supply circuit is connected with the digital signal conditioning module through a plug connector, and the analog power supply circuit is connected with the digital signal conditioning module through a plug connector. The analog power supply circuit is connected with the analog signal conditioning module through a plug connector. According to the underwater positioning device based on ZYNQ, the problems that in the prior art, the system integration degree is low, the real-time performance is insufficient, the dynamic range is limited, and the power consumption size is large are solved.
Owner:HARBIN ENG UNIV
General test interface platform for master control of wind generating set
PendingCN114576104ASave spaceImprove maintenance efficiencyMachines/enginesWind motor monitoringSignal conditioning circuitsReal-time simulation
The invention relates to a general test interface platform for master control of a wind generating set. The system is characterized in that the system comprises a signal conditioning circuit, the signal conditioning circuit is connected with an I / O interface of a master control system and a real-time simulation machine interface through a D-type data interface connector, and the signal conditioning circuit comprises a digital signal conditioning unit so as to convert 24V high and low level signals into 5V TTL signals; the signal conditioning circuit further comprises an analog signal conditioning unit so as to convert a 4-20 mA current signal into a 0-10 V voltage signal. The invention provides a plug-and-play signal universal interface platform for the detection and maintenance of the main control system, which can realize the detection and maintenance of different types of main control systems, obviously improve the maintenance efficiency, reduce the cost and save the space of a test site.
Owner:NINGXIA YINXING ENERGY
Detection electronic box failure diagnosis adapter
InactiveCN103675643AAchieve electrical isolationAchieve and guarantee electrical isolationElectronic circuit testingButt jointEngineering
The invention relates to a detection electronic box failure diagnosis adapter. The detection electronic box failure diagnosis adapter adopts the following technical scheme that the detection electronic box failure diagnosis adapter comprises an analog signal conditioning circuit board, a digital signal conditioning circuit board, a voltage signal switching control module and a panel, the panel is provided with a VPC-9025 interface module connection block, an insertion module and a tested printed circuit board support, and a detection system is formed through the butt joint between the adapter and a test platform through the VPC-9025 interface module. According to the invention, detection, failure judgment and failure locating can be performed on a detected signal outputted by a printed circuit board of 16 circuit assembly part single board cards of a detection electronic box according to the detection time sequence and process of the detection electronic box, and electronic devices leading to printed circuit board failures are reported in the report printing manner, so advantages of easy operation and good reliability can be realized.
Owner:中国人民解放军济南军区72465部队
An air conditioner control panel detection device and detection method
ActiveCN105676839BImprove detection efficiencyImprove detection accuracyProgramme controlElectric testing/monitoringDigital signal conditioningElectrical and Electronics engineering
The invention discloses a device and method for detecting an air-conditioner control panel, and the device comprises a main control chip, a storage unit, a first analog signal input conditioning circuit, a first digital signal conditioning circuit, a resistance signal output conditioning circuit, an alarm and a display, wherein the storage unit, the first analog signal input conditioning circuit, the first digital signal conditioning circuit, the resistance signal output conditioning circuit, the alarm and the display are respectively in electrical connection with the main control chip. The device also comprises a hybrid motor and a compressor. The first analog signal input conditioning circuit is electrically connected with a processing chip of the air-conditioner control panel and the hybrid motor. The first digital signal conditioning circuit is electrically connected with the compressor. The air-conditioner control panel also comprises a temperature adjustment rotary knob. The processing chip is electrically connected with the temperature adjustment rotary knob, the hybrid motor and the compressor. The device is high in detection efficiency and precision, is good in detection consistency, and effectively reduces the misjudgement rate and judgment leakage.
Owner:杭州益泰科智能科技有限公司
Interface conversion device and method of a propeller type wind sensor
ActiveCN116010318BSpeed/acceleration/shock instrument detailsElectric digital data processingConvertersData memory
The application discloses an interface conversion device and method of a propeller type wind sensor, and the device comprises a filter circuit, a shaping circuit, a single-chip microcomputer, a signal conditioning circuit, a power supply unit and a relay; the single-chip microcomputer comprises a CPU, a program memory, a data memory, an interrupt system, an I / O port, a clock circuit, a timing / counter, a D / A converter, an SPI bus and a serial port, and the single-chip microcomputer is used for processing the filtered wind speed signal or the shaped wind direction signal; the signal conditioning circuit comprises a pulse signal conditioning circuit, a voltage signal conditioning circuit, a current signal conditioning circuit and a digital signal conditioning circuit, and is used for outputting the pulse signal, the voltage signal, the current signal or the digital signal after conditioning. The device and the method disclosed by the application can convert the output signal type into an existing general signal type, facilitate the compatibility of the wind sensor and a processing system, facilitate signal processing, and improve work efficiency.
Owner:OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
Reactor reactivity measurement method and system
The present invention discloses a reactor reactivity measurement method and system, which relates to the field of reactor nuclear measurement. The key points of its technical solution are: performing weak current-to-voltage conversion and multi-channel filtering processing on the detector current signal; conditioning the rod position signal of the rod position to be measured; dynamically configuring the sampling rate, acquisition conditioning conversion gear and multiple weighting coefficients according to the measurement range and measurement method of the multiple first voltage signals; fusing the multiple weighting coefficients and the multiple first current signals; and obtaining a corrected composite current value after time synchronization processing of the composite current value according to the rod position conditioning signal. The present invention adopts full digital signal conditioning and synchronous acquisition of the detector signal current and the rod position signal to be measured to improve the accuracy of the parameter correction model. At the same time, it adopts multi-filter path conditioning and weighted correction to obtain corrected data for the matching data measurement method. In addition, it adopts dynamic loading of configuration parameters to realize microcurrent signal conditioning, acquisition, and initialization of correction parameters.
Owner:NUCLEAR POWER INSTITUTE OF CHINA
System and method for real-time electromagnetic spectrum analysis driven by gpu data stream
ActiveCN110108938BImprove parallelismSpeed up the conversion processFrequency analysisData compressionData stream
The invention relates to a GPU-based data stream-driven real-time electromagnetic spectrum analysis system and method. A high-performance GPU is adopted as a computing and processing core of a real-time spectrum measurement and analysis device or system; a high-speed display memory inside the high-performance GPU is used as a cache of the device or the system; a high-speed bus inside the GPU replaces the bus of the device or the system; a data transmission link is set inside the GPU; a data stream driving mode is adopted to realize high-speed transmission, time domain-frequency domain conversion, digital filtering, digital signal conditioning, data compression, display processing and other functions of digital signals after sampling, and thus, synchronization requirements of signal processing and test sampling in real-time spectrum measurement and analysis are met. The analysis system disclosed in the invention can greatly improve the analysis and processing capability of digital signals so as to match the signal sampling speed, buffer overflow caused by untimely processing and signal loss can be avoided, and real-time spectrum measurement and analysis on the broadband or transientelectromagnetic signals can be further realized.
Owner:BEIHANG UNIV
All-bridge type piezoresistance type pressure sensor digital type signal conditioning chip
ActiveCN101236113BLow costHigh conditioning accuracyForce measurement using piezo-resistive materialsCapacitanceFull bridge
Owner:WUHAN FINEMEMS