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82 results about "Dsp technology" patented technology
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Integrated navigation device for underwater glider and navigation method therefor
ActiveCN102519450AEasy to implementReduce volumeNavigation by speed/acceleration measurementsSatellite radio beaconingAccelerometerUnderwater glider
The invention discloses an integrated navigation device for an underwater glider and a navigation method therefor. The integrated navigation device for an underwater glider is characterized in that the integrated navigation device comprises an electronic compass, a micro-electro-mechanical system (MEMS) inertia measurement unit, a global satellite system receiving module and a digital signal processing module; an inertial integrated navigation and positioning system comprising the electronic compass and a posture measuring unit comprising a MEMS gyro and an accelerometer cooperates with a control system; a digital signal processor (DSP) module is utilized as a navigation resolving part; and independent and accurate positioning of an underwater glider is realized through processes of noise reduction, temperature compensation, non-linear correction, cross-coupling compensation and dead reckoning on various sensors in a full temperature range. The integrated navigation device for an underwater glider has a small volume, a high integration level, low power dissipation, long endurance and a low cost, can fast and accurately acquire current posture and position information of an underwater glider, can keep the balance of the underwater glider, and can provide track and position parameters for the underwater glider.
Owner:SOUTHEAST UNIV
Automatic page sequencing and other feedback action based on analysis of audio performance data
Speech or musical performance is electronically analyzed using DSP techniques and is compared to a stored text script or musical score, to enable display of and automated sequencing through multiple pages of the stored script or score. The performer can modify timing of sequencing if desired, for example dependent on performance speed or musical complexity. Automated highlighting or marking of measures or text assists the performer in keeping track of progress through the performance. During or after the performance, electronic comparison of the performance to the score or script provides feedback to the performer, highlighting differences between the actual performance and the desired performance as described by the score or script. Additional capabilities enhancing the learning process include digital recording and playback of the actual performance, and / or accompaniment by synthesis or playback of digital recording of other performance parts (for example, other instruments in an ensemble or other actors in a play).
Owner:TEXAS INSTR INC
Method and system for dynamically loading processor application programs
InactiveCN101901156AEasy to implementEasy to reuseProgram loading/initiatingSynchronous dynamic random-access memoryComplex programmable logic device
The invention relates to a technique for dynamically loading processor application programs and a hardware system for realizing the technique. The system mainly comprises a digital signal processor (DSP) 11, a field programmable gate array (FPGA) processor 17, a complex programmable logic device (CPLD) 16, a FLASH memory 13, a synchronous dynamic random access memory (SDRAM) 12, an interface chip14 and a power module 15, wherein fixed programs in the FLASH memory 13 comprise a DSP bootstrap program, a DSP management program and a plurality of FPGA and DSP application programs. A method for implementing the system has the characteristics that: dynamic loading and on-line updating of the FPGA application program and the DSP application program are realized by using the management program; the jump among the bootstrap program, the management program and the application programs is realized by the DSP technique so as to complete the dynamic loading function; and the FPGA is taken over bythe CPLD so as to configure a bus and the FPGA application program is loaded by combining the DSP.
Owner:SICHUAN JIUZHOU ELECTRIC GROUP
Automatic page sequencing and other feedback action based on analysis of audio performance data
Speech or musical performance is electronically analyzed using DSP techniques and is compared to a stored text script or musical score, to enable display of and automated sequencing through multiple pages of the stored script or score. The performer can modify timing of sequencing if desired, for example dependent on performance speed or musical complexity. Automated highlighting or marking of measures or text assists the performer in keeping track of progress through the performance. During or after the performance, electronic comparison of the performance to the score or script provides feedback to the performer, highlighting differences between the actual performance and the desired performance as described by the score or script. Additional capabilities enhancing the learning process include digital recording and playback of the actual performance, and / or accompaniment by synthesis or playback of digital recording of other performance parts (for example, other instruments in an ensemble or other actors in a play).
Owner:TEXAS INSTR INC
Integrated excitation/extraction system for test and measurement
InactiveUS6931579B2Convenient verificationElectronic circuit testingTesting/calibration of speed/acceleration/shock measurement devicesVoltage generatorReconstruction filter
An integrated test core for mixed-signal circuits comprises a periodic waveform generator capable of generating arbitrary band-limited waveforms for excitation purposes and a waveform digitizer for extracting an arbitrary waveform from the test circuit's analog response signal. The digitized response may be tested and measured using DSP techniques. Preferably, the waveform generator and digitizer are synchronously controlled. The core is a nearly all digital implementation with the exception of a reconstruction filter (optional) for sending the test signal to the circuit under test (CUT) and the comparator for extracting the digitized waveform from the CUT's response. The periodic waveform generator may comprise a ΣΔ modulator and, optionally, a reconstruction filter between the modulator and CUT. The waveform digitizer may comprise a programmable reference voltage generator for providing a variable voltage reference signal, a comparator for generating a comparison signal from the CUT's analog response signal and the reference signal and means for controlling the reference voltage generator.
Owner:MCGILL UNIV
Carrier leakage adaptive elimination system in direct frequency conversion modulation
ActiveCN101478287ASuppressing Carrier LeakageExcellent output analog RF characteristicsAmplitude modulation detailsModulation transferenceFrequency conversionCarrier signal
The invention relates to an adaptive rejection system for carrier wave leakage in direct frequency conversion modulation in the DSP technology field. The system comprises a down-conversion module, a demodulation and frequency phase recovering module, a DC detection module and a feedback module. The adaptive rejection system can automatically monitor, track and compensate for the DC component caused by the changes in environmental temperature and humidity in all elements in a whole up-conversion link without interrupting a master signal, and the adaptive feedback structure has high precision at the same time.
Owner:上海全波通信技术有限公司
Orchard bactrocera dorsalis insect damage recognition system based on digital signal processing (DSP) and internet of things
ActiveCN103125457AImprove execution efficiencyRun fastInsect catchers and killersGeneral Packet Radio ServiceScanning tunneling microscope
The invention discloses an orchard bactrocera dorsalis insect damage recognition system based on digital signal processing (DSP) and the internet of things. The orchard bactrocera dorsalis insect damage recognition system comprises an installation support, a novel insect trap fixed on the installation support, an industrial camera arranged above the novel insect trap and a casing fixed on the installation support. A photoelectric detection module is arranged in the novel insect trap; a DSP digital image processing module, a scanning tunneling microscope (STM) 32 functional circuit, a global system for mobile communications (GSM) / general packet radio service (GPRS) wireless communication module and a charging control module which are sequentially connected are arranged in the casing; a displayer and a touch screen are arranged on the surface of the casing; and the charging control module is further connected with a solar panel. According to the orchard bactrocera dorsalis insect damage recognition system, the DSP technology, the machine vision technology and the internet of things technology are combined, the machine vision technology is achieved on a DSP processor platform and applied to detection and recognition of orchard bactrocera dorsalis, and accordingly fast and accurate detection and recognition of orchard bactrocera dorsalis are achieved. Simultaneously, automatic real-time monitoring of orchard insect damage is achieved and cost of manpower and material resources in orchard insect damage monitoring is reduced.
Owner:SOUTH CHINA AGRI UNIV
Satellite television system ground station having wideband multi-channel LNB converter/transmitter architecture utilizing a frequency stabilized common oscillator
ActiveUS7401349B2Down bandwidthTelevision system detailsSatellite broadcast receivingGround stationDsp technology
A satellite television ground system, particularly for a make or break satellite television signal system, includes an outdoor unit and an indoor unit that are in communication with each other via a single coaxial cable and an optional separate single conductor for power. The satellite television ground system is operative to measure and reverse frequency conversion errors utilizing DSP techniques, allowing for more precise generation and transmission of uplink signals from the satellite television ground system. Control data for the system is sent via a low data rate connection on a power cable thereof, or by a narrowband signaling channel via a coax cable. The system also utilizes a single reference oscillator to drive the various frequency synthesizers and the like. The satellite television ground system utilizes related oscillators for the uplink and downlink sections.
Owner:INTERDIGITAL MADISON PATENT HLDG
Apparatus for detecting thz signal frequency spectrum by superconduction josephson junction
InactiveCN101349712AReduce volumeRealize intelligenceSpectral/fourier analysisFrequency spectrumEngineering
The invention discloses a device which utilizes josephson junction to detect terahertz signal spectrums, the main improvement is that first, the device utilizes a mini refrigerator to replace a liquid nitrogen vessel in the original system to refrigerate, second, a current supply which is controlled by voltage is formed by a scanning voltage module in a DSP system and an external voltage-current conversion circuit to replace a current bias circuit of josephson junction in the original system, and third, a lock-in amplifier and a digital multimeter in the original system are replaced by a DSP data collecting and processing system. The device adopts an improved DSP technique, which integrates the main functions of the generation of sweep signals, the automatic measurement control, the lock-in amplifier and the like, thereby greatly reducing the volume of the device, lowering the production cost, and achieving the intellectualization and the miniaturization of the device.
Owner:NANJING UNIV
Intelligent traffic light control system with digital signal processing (DSP) function
InactiveCN103366583AImprove performanceImprove image processing speedControlling traffic signalsTraffic signalStructure of Management Information
The invention relates to the research based on an urban road transport intelligent traffic light control system, and provides a system which comprises an image data acquisition circuit, a DSP (digital signal processing) analysis and processing system, an I / O (input / output) extension unit, a driving array and a signal light display unit. The functions such as image A / D (analog to digital) conversion, image analysis and processing, real-time image display and time sequence control are realized by adopting a DSP chip. By analyzing and processing video images, vehicles in different shapes, structures and colors are accurately identified, quantities of static vehicles on the left-turn road, the straight road, the right-turn road and the roadway of a crossroad or the occupied length of the static vehicles are identified instantaneously, and corresponding green light time duration is determined according to the quantities of vehicles on different lanes. A DSP technology is for the first time applied to the intelligent traffic light control field, control on traffic lights through a remote network and intersection single points is realized, the traffic signal light time control period can be regulated and controlled, and the system has positive practical significance in improving traffic capacity and reducing traffic accidents.
Owner:西安纳兴电子科技有限公司
Digital low power consumption high-precision high voltage generator
This invention relates to a technique based on DSP technology of digital low-power, high-precision and high voltage generator, including a high voltage generate circuit 1, steady voltage driving circuit regulators 2, DSP control system 3, current / voltage circuit sampling tube 4, and driven circuit 5. The high voltage circuit provides negative voltage for X-ray tubes, and produces current in the X-ray tubes. Current / voltage sampling circuit 4 samples the voltage / current which is provided to X-ray tube by high voltage circuit 1, and the sampling signal will be transmitted to the DSP control system 3. DSP control system samples the signals using the built-in 10 D synchronous analog-to-digital converter, analysis and processing. Converter Implementation of a high voltage output circuits have a negative high voltage X-ray tube and the current stability testing. Then PWM control signal wave will be output based on the test results, and put it on regulators driving circuit 2 and flow-driven circuit 5, and a closed-loop control circuit will be got, achieving the stability control of X-ray tube voltage and current.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY
Satellite television system ground station having wideband multi-channel LNB converter/transmitter architecture with controlled uplink transmission
ActiveUS8418210B2Down bandwidthGHz frequency transmissionActive radio relay systemsGround stationDsp technology
A satellite television ground system, particularly for a make or break satellite television signal system, includes an outdoor unit and an indoor unit that are in communication with each other via a single coaxial cable and an optional separate single conductor for power. The satellite television ground system is operative to measure and reverse frequency conversion errors utilizing DSP techniques, allowing for more precise generation and transmission of uplink signals from the satellite television ground system. Control data for the system is sent via a low data rate connection on a power cable thereof, or by a narrowband signaling channel via a coax cable. The system also utilizes a single reference oscillator to drive the various frequency synthesizers and the like. The satellite television ground system utilizes related oscillators for the uplink and downlink sections. Carrier frequency offset in the downlink is measured in a carrier tracking loop part of a television signal demodulator. The carrier frequency offset of the downlink is utilized to synthesize various frequency signals for the uplink and downlink sections to correct frequency errors. For the uplink section, the carrier frequency offset of the downlink is reversed in the uplink. If the uplink is on a different frequency, the measured offset of the system master oscillator can be scaled by different synthesizer ratios.
Owner:INTERDIGITAL MADISON PATENT HLDG
Electromagnetic wave measurement while drilling system wireless remote receiving device and measuring method and application thereof
ActiveCN103061754AAchieve upgradeConvenient online modificationConstructionsComputer moduleArray element
The invention relates to an electromagnetic wave measurement while drilling system wireless remote receiving device and a measuring method and application of the electromagnetic wave measurement while drilling system wireless remote receiving device. The electromagnetic wave measurement while drilling system wireless remote receiving device comprises an antenna receiving array and a remote receiving unit which comprises a central processing unit, a control circuit, a wireless receiving and dispatching module and a power supply. The wireless receiving and dispatching module is connected with the central processing unit through the control circuit. The device is used for remotely receiving electromagnetic wave measurement while drilling system signals and used for receiving measurement signals in an electromagnetic wave measurement while drilling system. A digital signal processor (DSP) technology and an array signal processing technology are adopted to achieve suppression of well site noise. Through an array element with a reasonable layout, an advanced digital signal processing algorithm is matched to achieve remote receiving of weak electromagnetic signals, adaptive capacity, to different strata, of the electromagnetic wave measurement while drilling system is effectively improved, processing gain and receiving sensitivity are improved, and measuring depth is improved.
Owner:CHINA PETROLEUM & CHEM CORP +1
Method for reducing switch failure between bypass and inverse circuit of uninterrupted power supply
InactiveCN101183793AReduce failureEasy to controlBatteries circuit arrangementsElectric powerEngineeringUninterruptible power supply
The invention discloses a method to reduce switch fault between a bypass of an uninterruptible power supply (UPS) and an inverter circuit, which is characterized in that: a control circuit first judges out the switch mode, either from the bypass to the inverter circuit or from the inverter circuit to the bypass; when a switch is conducted by the UPS; a real and strict synchrony between an invert output and a bypass input is realized while UPS is conducting the switch by utilizing the constantly matured DSP technology, i.e. matching (the same frequency, the same phase and the same amplitude). The invention has the advantages of lowered UPS fault and reduced cost.
Owner:PANDA ELECTRONICS GROUP +2
Control method for household modern comfortable equipment combination based on DSP technique
The invention discloses a control method for a household modern comfortable equipment combination based on a DSP technique. Functional modules such as an audio and a video involved in the method are dispersed in a control system, people can construct a virtual audio-video scene in a room according to personal preference by virtue of a topological and genetic optimization algorithm routine of a main processor utilizing a DSP as a core based on the control of a clock loop, a daily schedule law can be predicted through a clock loop routine to remind people of watching a film within law time, and a system can automatically detect the temperature, humidity and quality of air and automatically regulate the temperature, the humidity and the quality to optimal values; a life recorder records important things in the life; a human body health detector detects health indexes of people at any time so as to early prevent diseases; and by virtue of a proper position layout, equipment such as the audio and the video can be placed at proper positions according to an optimal individual principle, so that the audio-visual feel and the comfort level of the people in the family are improved, and the family life is more comfortable, efficient and intelligent.
Owner:QINGDAO UNIV OF SCI & TECH
Visual navigation path recognition system of grain combine harvester
InactiveCN103914071AHigh speedHigh precisionProgramme controlComputer controlMicrocontrollerDriver/operator
The invention relates to a visual navigation path recognition system of a grain combine harvester. After the system is loaded and a driver aligns a harvesting line, the system can detect line parameters of navigation paths of the grain combine harvester automatically through a camera (video camera), conduct navigation path planning to form navigation path information and finally transmit the navigation path information to a combine harvester visual navigation steering control system based on a single-chip microcomputer through an ARM kernel 12C bus and single-chip microcomputer communication unit based on a 12C bus. The visual navigation path recognition system of the grain combine harvester combines an image processing technology and the Vinci technology (DSP technology), is low in power consumption, capable of achieving equipment miniaturization and convenient to install, increases the navigation path recognition speed of the grain combine harvester, improves the navigation path recognition accuracy of the grain combine harvester, has high real-time performance, accuracy and robustness, and is suitable for being popularized and used.
Owner:CHINA AGRI UNIV
Arc welding inversion controlling method based on DSP chip
InactiveCN101388614AImprove performanceAccurate performanceComputer controlArc welding apparatusProcessor registerSoftware design
The invention discloses a method for controlling arc welding inversion on the basis of a DSP chip, wherein a system comprises a rectification inversion filtering functional module, an IGBT grid driving module, a DSP central processing module, an input and output module, a sense amplification module and an overload signal detecting module. The method comprises: closing a total interruption and a watchdog, setting a register, initializing a digital analog conversion unit in the DSP central processing module, setting a whole comparison register and a dead area control register, allocating an I / O pin, setting a timer, allowing underflow, cyclic interrupt and underflow interrupt, setting an EVAIMRA and an IMR, allowing INT1 and INT2 interrupts, eliminating interrupt identification, opening a total interrupt, and entering a circulating waiting status. The invention applies the DSP technique in controlling an arc welding inverter system, more stable, precise and flexible performances can be provided, the control is flexible and intelligentized, the hardware design is simple, the software design is flexible and diversified, demanded peripheral circuits are few, and the method has wide application prospect.
Owner:SHANGHAI HUGONG ELECTRIC WELDING MACHINE MFG
Audio-video network converter and data conversion method thereof
InactiveCN101697578ATwo-way working systemsDigital video signal modificationData transmissionDsp technology
The invention discloses an audio-video network converter, which comprises a hardware part and a software part, wherein the hardware part comprises a DSP core processor and a functional unit elements connected with interface ends of a bus of the DSP core processor; and the software control part comprises functional modules for realizing data transmission and control, and the functional modules control the hardware part to realize the transmission and conversion of various audio and video data of intelligent cells. The invention also provides a method for transmitting and converting the audio and video data by using the audio-video network converter. In the invention, the audio-video network converter and the data conversion method are developed by using broadband networks of cells and also fully using self-controlled DSP technology, streaming media technology, embedded product development technology and advanced audio and video compression and decompression technology, a technical revolution in the field of conventional analog visual conversation is brought and the construction and development of intelligent cells in China are promoted.
Owner:陆如枫 +3
Digital signal processor (DSP)-based high-precision ultrasonic distance measurement system and distance measurement method
InactiveCN102508249ARealize rough measurementAchieve precise correctionAcoustic wave reradiationAcoustic waveLarge distance
Owner:ZHEJIANG UNIV
Cardiac pacing system with improved physiological event classification and heart monitoring based on DSP
InactiveUS8255047B1Reliable and reliableReliable signal classificationHeart stimulatorsDiagnostic recording/measuringWave parameterEngineering
There is provided an implantable cardiac pacing system or other cardiac monitoring system having an enhanced capability to classify intracardiac signals through a combination of DSP techniques and software algorithms. The implantable device has one or more DSP channels corresponding to different signals which are being monitored. Each DSP channel most preferably amplifies the incoming signal, converts the signal from analog to digital form, digitally filters the converted signals to provide a filtered signal, operates on the filtered signal to provide a slope signal, determines from the filtered and slope signals when an intracardiac event has been detected, signal processes the filtered and slope signals for a predetermined analysis interval after threshold crossing, and generates a plurality of wave parameters corresponding to the signal. The generated wave parameters are further operated on by a programmable algorithm to classify the detected event based upon DSP-generated parameters, and then monitor or detect the onset, development or presence of an undesired heart condition in a patient. The system may further provide for the delivery of treatment, storage of intracardiac data, or provision of a warning to a patient or physician in response to the detection of such a heart condition.
Owner:MEDTRONIC INC
Frequency agility synthesis method compatible with microwave large band width and mid-frequency small stepping and device thereof
InactiveCN102394645AImproved technical indicatorsImprove scalabilityProgramme controlPulse automatic controlIntermediate frequencySynthesis methods
The invention relates to a frequency agility synthesis method compatible with microwave large band width and mid-frequency small step and a device thereof. The invention is characterized in that direct simulation type frequency synthesis, direct digital frequency synthesis, and DSP(digital signal processor) technology are combined to perform frequency synthesis, so as to make the best of the advantages of the mentioned technologies, avoid technical defects, realize the optimization of all technical indexes of the frequency synthesizer, has a better expandability on the design of frequency band width and at the same time is compatible with large band width microwave frequency agility and mid-frequency small stepping frequency agility signal functions.
Owner:中国兵器工业第二〇六研究所
Intellectual structure health monitoring system based on DSP technology
InactiveCN102049867ASelf-healingMethod implementationOptically investigating flaws/contaminationSelf-healingNerve network
The invention discloses an intellectual structure self-healing method and health monitoring system. The intellectual structure self-healing method is a brand new intellectual structure self-healing and self-diagnostic method which realizes damage self-healing of a composite material by adopting sun light energy and a light curing technology and also realizes health monitoring on the basis of a neural network and a digital signal processing technology. In the invention, a light curing binding agent is used as a light curing remediator which is placed hollow fiber coated with a photomask agent and a coupling agent, when the material has cracks, fiber in front extension edges of the cracks fractures, the photocuring restoration agent permeates in the damaged cracks, and thus the damage self-healing of the material is realized by adopting the sun light as supply energy; meanwhile, an optical fiber sensor is used as a signal transmitting and sensing element, the health state of an intellectual structure is monitored by combining the digital signal processing technology. The invention has the characteristics of strong practicability, low cost, environment protection, energy saving and the like and provides an effective solution scheme for realizing the self-healing and health monitoring of a member made of composite material.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Future capture of block matching clip
InactiveUS20070250881A1Analogue secracy/subscription systemsTwo-way working systemsDsp technologyComputer science
A method and apparatus for capturing future instances of a song or a television show or the like. Responsive to a user activating a trigger, typically during the middle of the song or show, the system stores a clip and thereafter begins to monitor one or more channels or stations, attempting to locate that clip, such as by using DSP techniques. Upon finding the clip, the beginning and ending points of the song or show are identified, and the song or show is saved. Hunting may continue, to find a best available version of the song or show, such as one having the best noise characteristics.
Owner:CLAPPER EDWARD O
Shipborne maritime wireless communication monitoring system
InactiveCN101363888AEliminate couplingEliminate phase ambiguityRadio wave direction/deviation determination systemsElectrical testingIntermediate frequencyDsp technology
The invention provides a shipborne overwater wireless communication monitoring system, which comprises a shipborne correlation interferometer direction-finding antenna array, an electrical rotation unit, an RF amplifier module, a card direction finding receiver, a direction-finding control processing module, an embedded computer system and a power supply module. The system has the advantages that an integrated design, the intermediate frequency signal technique and the modularized combination are adopted; the built-in embedded computer system is adopted, so that the structure is compact and portable; the portable passive correlation interferometer direction-finding antenna is adopted to solve the mutual coupling between the antenna array cells to eliminate the coupling and the phase ambiguity between element antennae; the multifunctional amplifier is adopted and automatically switched to enlarge the dynamic application range of the received signal; the card double-channel monitoring direction-finding receiver is equipped, so as to carry out the monitoring and the direction-finding by a sharing time, and switched into the radio monitoring without the need of the direction-finding; and the compensation algorithm software is corrected and combined with an electronic nautical chart and a ship recognition system to meet the requirements for the overwater / offshore monitoring.
Owner:俞惟铨
Liquid crystal device-based novel intelligent polarimeter and test method
InactiveCN101893548ALow costReduce volumePolarisation-affecting propertiesNon-linear opticsPolarimeterPolarizer
The invention relates to a liquid crystal device-based novel intelligent polarimeter and a test method. The test method comprises that: a polarizer and an analyzer are regulated to be orthogonal and fixed before an optical active substance is added; after the optical active substance is added into a polarization tube, light emitted from a light source sequentially passes through the polarizer, a liquid crystal sheet, the polarization tube used for placing a substance to be detected, and the analyzer to reach a photoelectric cell, and the photoelectric cell outputs a signal; the signal is processed to obtain a rotation angle of the optical active substance; and the rotation angle is displayed. The liquid crystal sheet takes the place of a Faraday coil in the conventional polarimeter, and simultaneously, a motor, a corresponding servo motor and a mechanical transmission part are saved, so the cost and volume of the polarimeter are reduced; and in combination with digital signal processor (DSP) technology, the test method has the advantages of improving the signal processing capacity, setting different measurement modes by using a touch screen, and improving the intellectualization degree and measurement accuracy of the polarimeter.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Multi-interval simulation testing system based on field application of digital substation
InactiveCN108089081AGuaranteed uptimeVerify the correctness of the actionElectrical testingClosed loopSmart grid
The invention discloses a multi-interval simulation testing system based on field application of a digital substation. The testing system utilizes DSP technology to carry out a simulation test a faultpoint in a power line and the action logic between protection devices thereof, and includes a simulation host and analog quantity output slaves. The simulation host and the analog quantity output slaves are connected via optical fibers. The testing method used in the invention is to place the plurality of analog quantity output slaves separately in front of merging unit devices at different intervals, use the simulation host to remotely and synchronously control the simulation output through the optical fibers, and at the same time, test the plurality of merging units with increased quantity.Goose signals returned by the protection device actions can be received and switch quantity action nodes can also be received to realize the closed-loop test, the joint adjustment of an intelligent power grid system is achieved, and the working conditions when the entire station system actually operates is truly reflected.
Owner:STATE GRID CORP OF CHINA +1
Method for keeping constant pressure water supply for urban water supply pipe network
InactiveCN108316408ARealize constant pressure water supplyRealize long-distance transmissionService pipe systemsWater mainsUrban water supplyEngineering
The invention discloses a method for keeping constant pressure water supply for an urban water supply pipe network. A digital radio is utilized to achieve long-distance data transmission and adopts aDSP technology for self-adaptive balance, a main digital ratio is arranged in a water system control center in the city, main digital ratios are arranged in all subordinate water plants respectively to be used for mutually transmitting data and are mainly in charge of uploading pressure and flow of a main pipe network and water plant data, a pressure transmitter and an electromagnetic flowmeter acquiring device are added on an inlet and an outlet of the pipe network respectively, a signal is wirelessly transmitted, data is transmitted to a water pump house monitoring center through a DSP, datacommunication is conducted with a PLC system of a water delivering pump house of a large earth surface water plant, a water delivering pump is interlocked with pipe network pressure data, and a waterdelivering frequency converter achieves PID control. To solve the problems of water pressure fluctuation among urban tap water pipe networks and long-distance communication, the novel control methodis provided, pressure is automatically kept balanced, and stable water supply is guaranteed.
Owner:河北天俱时自动化科技有限公司
Load managing and control system based on DSP technology and expert control system and its working method
InactiveCN1945475AImprove reliabilityEasy to adjustProgramme controlComputer controlDsp technologyData acquisition module
A load management control system for the combination of DSP technology and expert control system, which character is the composition of processor modules, data collection modules, input-output interface modules, communication modules, power module and keyboard display module. the advantages of the invention are: (1) using the high-speed data calculating and high-precision data handing capability of DSP to conduct double-signal control on the action executing device of load control management, to improve the reliability and speediness, (2) the entire system has a good performance of adjusting, to enhance the stability of the electric network, lower the probability of incidents due to the malfunction or rejection of control device, (3) expert control system makes the control program more reasonable and accurate, which has self-learning function, (4) hardware circuit is simple, real-time control is highly precise, and application prospect is broad.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
DSP (digital signal processor) based control system of uninterrupted power supply
InactiveCN102820697AGuaranteed normal operationImprove reliabilityEmergency power supply arrangementsPower control systemMaintainability
The invention discloses a DSP (digital signal processor) based control system of an uninterrupted power supply, comprising a DSP core processor, an isolation transformer, an AC / DC (alternating current / direct current) module, a charging circuit, a storage battery, a discharging circuit and a DC / DC voltage stabilization module, wherein the isolation transformer is connected with the DC / DC voltage stabilization module through the AC / DC module and the DSP core processor sequentially, and the storage battery is directly connected with the DSP core processor. By utilizing a DSP technology, the DSP based control system disclosed by the invention realizes a digital control direct current uninterrupted power supply, and characteristics and performances of a power supply control system are immediately changed, so that the flexible and quick response speed of the system is increased, and the reliability and the maintainability of operation of the uninterrupted power supply are improved.
Owner:ANHUI UNIV OF SCI & TECH
Seamless circuit parameter real time monitoring method based on 'intelligent electron eye'
InactiveCN1785731AEnsure driving safetyAvoid accidentsClosed circuit television systemsRailway auxillary equipmentLine managementGSM
The present invention discloses a seamless line parameter real-time monitoring method based on í‹intelligent electronic eyeíŒ for monitoring railway seamless line parameters. Said method includes the following steps: (1), utilizing camera technique to collect field seamless line image; (2), adopting DSP technique to make image identification treatment to real-time produce seamless line parameter; (3), adopting GSM wireless network transmission technique to transfer the above-mentioned parameter to monitoring centre; and (4), combining field seamless line real-time measured parameter with seamless line management system, and comparing theoretical allowable value with actual measured value so as to implement real-time monitoring control of seamless line parameter and alarm.
Owner:BEIJING JIAOTONG UNIV
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