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35results about How to "High separation accuracy" patented technology
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Coin classification checking and packing machine
ActiveCN105551135AHigh separation accuracyHigh speedCoin/paper handlersBiomedical engineeringBank note
The present invention provides a coin classification checking and packing machine. The coin classification declaration and packing machine integrates the following six functions: separating miscellaneous coins, separating and checking coins with different diameters, flattening and putting straight bank notes, classifying bank notes according face values of the bank notes, collecting and packaging coins and arranging bank notes, and is able to separate the bank notes in one step, so that the efficiency is improved while the labor work intensity is mitigated. The coin classification checking and packing machine comprises a material port and a coin and bank note separation device arranged below the material port. A coin classification device, a coin packing transition device and a packing sealing device are arranged in order at one end of the coin and bank note separation device, and a bank note flattening device, a bank note classification device and a bank note arrangement device are arranged in order of the coin and bank note separation device.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY
Identification camera capable of automatically carrying out portrait cutout and method thereof
ActiveCN105184787AHigh precisionFast operationImage enhancementImage analysisPattern recognitionBitmap
The invention discloses an identification camera capable of automatically carrying out portrait cutout and a method thereof. The identification camera comprises a portrait contour searching module, an initial foreground and initial background setting module, a foreground area and background area determination module and a foreground image separation module. The method comprises the following steps: carrying out quick searching on an original image by utilizing contour detection technology to obtain a portrait contour; setting the area in the found portrait contour to be the initial foreground, and setting the peripheral area of the found portrait contour to be the initial background; establishing a mixture Gaussian model through a GrabCut function by utilizing a mask bitmap of the initial foreground and a mask bitmap of the initial background, and then, obtaining the final mask bitmap of the initial foreground and the initial background through iteration adjustment; and establishing a transparent and empty image bitmap consistent with the original image in size, and copying pixels mapped in the foreground area of the final mask bitmap to the image bitmap to obtain a foreground image. The method can improve operation speed and cutout precision.
Owner:GUANGZHOU XINGFU NETWORK TECH
Coin separating, counting and identifying device and method
The invention discloses a coin separating, counting and identifying device and method. The device comprises a funnel (1), a rotating disc (2), a base (3), a motor (4), a baffle plate (5), electromagnetic valves (6), photoelectric sensor detection holes (7), electromagnetic valves, Hall sensors, a permanent magnet and a single-chip microcomputer. The funnel (1) is provided with an opening which is used for putting coins. The funnel (1) is connected with the base (3) and arranged on the upper surface of the base (3). The rotating disc (2) is arranged on the base (3) and positioned between the funnel (1) and the base (3). The rotating disc (2) is provided with the photoelectric detection holes used for the sensors. The motor (4) is arranged on the lower surface of the base (3) and connected with the rotating disc (2) and used for driving the rotating disc (2) to rotate. The emission electrodes of the photoelectric sensors (7) are fixed on the upper surface of the rotating disc (2), and the receiving electrodes are fixed on the lower surface of the rotating disc (2) and arranged at the position exactly facing the emission electrodes. Automatic counting and separating of the coins and authenticity identifying of the coins can be realized by the coin separating, counting and identifying device and method.
Owner:SOUTHEAST UNIV
Sound source separation algorithm of end-to-end time domain multi-scale convolutional neural network
PendingCN113314140AImprove generalization abilityStrong precisionSpeech analysisSound source separationTime domain
The invention discloses a sound source separation algorithm of a multi-scale convolutional neural network with a real-time processing function. The sound source separation algorithm mainly comprises the steps of making a mixed data set; carrying out feature extraction on the mixed audio through a designed multi-scale encoder so that the separation performance is improved; carrying out modeling on the extracted features through multiple groups of improved TCNs, and replacing standard convolution in a convolution block with depth separable convolution (S_conv); introducing a gating mechanism into each TCN block, and processing a feature information stream by using a full convolution gated linear unit (GLU); and finally, restoring a pure audio waveform through a multi-scale decoder. According to the multi-scale-based time domain audio operation method, a TCN network is used for building a sound source separation model, the defect that phase information is ignored by using short-time Fourier transform traditionally is overcome, a lightweight network is built, information flow is effectively controlled, and real-time and accurate separation is achieved.
Owner:HARBIN UNIV OF SCI & TECH
Method for separating bio-macromolecules of flow type stationary phase in column by utilizing electromagnetic field
ActiveCN104359995AThe separation method is simpleHigh separation accuracyComponent separationBiological macromoleculeEngineering
The invention discloses a method for separating bio-macromolecules of a flow type stationary phase in a column by utilizing an electromagnetic field. According to mechanism of the method, surface modified magnetic nano-particles are introduced into a separation column, and an external electromagnetic field is applied, the direction of a magnetic field force of the magnetic nano-particles needs to be opposite to the thrust of a mobile phase, the magnetic nano-particles can reach a dynamic balance of force inside the column and flow back and forth inside the column when the magnetic force of the magnetic nano-particles is equivalent to the thrust of the mobile phase, target bio-macromolecules to be separated and functional groups on the surface of the particles perform adsorption and desorption effects after being added inside the column, different bio-macromolecules respectively flow out from the separation column according to different from acting force of the magnetic nano-particles, so that the aim of separation is achieved. The method has the advantage of simply and accurately separating different biological samples according to properties of the biological samples.
Owner:YANBIAN UNIV
Liquid absorption mechanism and working method thereof
PendingCN110564600AHigh separation accuracyBioreactor/fermenter combinationsBiological substance pretreatmentsLiquid layerEngineering
The invention relates to a liquid absorption mechanism and a working method thereof. The mechanism comprises a bracket, a centrifuge bottle, a control chip, a liquid absorption component and a visualinspection component, wherein the visual inspection component comprises a camera component and a visual controller; the camera component and the visual controller are connected; the visual controllerand the liquid absorption component are independently connected with the control chip; the centrifuge bottle, the camera component and the liquid absorption component are connected to a bracket; the photo of the centrifuge bottle is shot through the camera component; and after the visual controller carries out photo analysis, liquid layering position information is obtained, the liquid layering position information is sent to the control chip, and the control chip drives the liquid absorption component to carry out an absorption operation of an upper-layer clear liquid in the centrifuge bottle. By use of the liquid absorption mechanism disclosed by the invention, the fully automatic absorption of the upper-layer clear liquid is realized, and in addition, liquid separation accuracy is highby visual identification and inspection.
Owner:CELLAUTO BIOLOGICAL AUTOMATION CO LTD +1
Coin sorting device through centrifugal acceleration and separation of height-limiting and width-limiting drum-shaped leak hole
ActiveCN106257545AReduce energy consumptionReduce manufacturing costCoin/paper handlersEngineeringMechanical engineering
The invention discloses a coin sorting device through centrifugal acceleration and separation of a height-limiting and width-limiting drum-shaped leak hole. The coin sorting device comprises a centrifugal acceleration disc, a primary chute and a secondary chute. The centrifugal acceleration disc is provided with a coin outlet, and the primary chute is communicated with the centrifugal acceleration disc through the coin outlet. The coin outlet is also provided with a first height-limiting and width-limiting door. The secondary chute is communicated with the primary chute through a second height-limiting and width-limiting door. The secondary chute is provided with a drum-shaped leak hole. The tail end of the primary chute is provided with a one-yuan coin collecting box, and the tail end of the secondary chute is provided with a five-jiao coin collecting box. A one-jiao coin collecting box is arranged below the drum-shaped leak hole. The coin sorting device is low in energy consumption, high in stability and high in sorting accuracy.
Owner:SOUTHEAST UNIV
Seismic information acquisition system and method
InactiveCN111929721AAccurate collectionAccurate recordSeismic signal recordingSeismology for water-covered areasData recordingDigital signal
The invention relates to the field of marine geological survey, provides a seismic information acquisition system and method, and aims to solve the problem of near-field wavelet acquisition. The seismic information acquisition system provided by the invention comprises a data recording module; an auxiliary channel module which is connected with the data recording module and is used for convertingreceived analog signals into digital signals and storing the digital signals in the data recording module; and a signal processing module which is connected with a near-field detector, is connected with the auxiliary channel module, and is used for carrying out voltage reduction and filtering processing on the signals and transmitting the processed analog signals to the auxiliary channel module. Near-field wavelet data can be accurately collected and recorded.
Owner:GUANGZHOU MARINE GEOLOGICAL SURVEY
Speaker separation method and related equipment thereof
PendingCN113362831AAccurate representationReduce adverse effectsSpeech analysisEngineeringSpeech sound
The invention discloses a speaker separation method and related equipment thereof, and the method comprises the steps: inputting to-be-separated voice data into a pre-constructed voice separation model after the to-be-separated voice data comprising the voice information of at least one speaker is obtained; obtaining at least one part of voice separation data output by the voice separation model, so that speakers of voice information carried by each part of voice separation data are different (namely, different parts of voice separation data are used for recording voice information of different speakers); and according to the at least one part of voice separation data, determining a speaker separation result of the to-be-separated voice data, so that the speaker separation result can accurately represent a voice segment corresponding to each speaker in the to-be-separated voice data. In this way, the adverse effect caused by the fact that the multiple speakers corresponding to the overlapped audio data cannot be accurately recognized can be effectively avoided, and therefore the speaker separation accuracy can be effectively improved.
Owner:IFLYTEK CO LTD
Layered coin separating device
InactiveCN107705413AIncrease productivityHigh separation accuracyCoin/paper handlersCircular discDrive shaft
A layered coin separating device disclosed by the present invention comprises a coin separation mechanism, a coin stirring mechanism, a power and transmission device, a screening mechanism, a detecting and counting device, collection mechanisms, a rack and a chassis. The coin separation mechanism is a three-layer separation cylindrical mechanism and comprises three kinds of separation discs of thesame diameters, and circular holes are fully distributed on each separation disc to separate the coins of the corresponding diameters. The three discs are all connected with a motor via a gear and atransmission shaft, under the driving of the motor, rotate forward to separate the coins, and rotate reversely to export the coins to the screening mechanism for the second time separation, the detecting and counting device comprising an infrared sensor and a kinescope is installed at the tail of the screening mechanism, and the coins are counted by the detecting and counting device and then enterthe corresponding collection mechanisms respectively, so that the coins are separated. Compared with the prior art, the layered coin separating device of the present invention can efficiently separate the coins of one yuan, 50 fens and 10 fens that are used frequently in life, and has the characteristics of being fast in coin separation speed, high in accuracy, simple in structure and low in manufacturing cost.
Owner:XIANGTAN UNIV
Rotary card slot type coin separating device
The invention discloses a rotary card slot type coin separating device. The device comprises a coin separating housing. An inlet port is fixedly connected to an intermediate position of the top of thecoin separating housing. A primary screening mechanism is fixedly connected to an intermediate position of the inner top end of the coin separating housing and below a feeding port. The primary screening mechanism is uniformly fixedly connected with a secondary screening mechanism on the side. The circumference of the coin separating housing is uniformly fixedly connected to a through-groove. Thesecondary screening mechanism extends away from one end of the primary screening mechanism to the outside of the coin separating housing. The invention relates to the field of coin separating technology. The rotary card slot type coin separating device achieves the purposes of improving the fluidity of the coin screening, increasing the number of initial screening of the coins, thereby increasingthe screening efficiency and realizing the multi-level screening of the coins. The invention improves the accuracy of coin separation, reduces labor and separation cost, and the overall structure andoperation are simple, and the device is small in size.
Owner:HEFEI UNIV
Novel sieve plate type coin sorting device and method
InactiveCN105844772ARealize one-time sortingRealize semi-automatic classificationCoin/paper handlersReciprocating motionElectric machinery
The invention provides a novel sieve plate type coin sorting device and method. The device comprises a frame, a crank slider mechanism, a slideway, a screening box, a sieve plate set, hoses, an electric mortise lock, a steel ball and an electric push rod. The crank slider mechanism, the slideway and the screening box are arranged on the frame. The screening box matches the frame through the slideway. The crank slider mechanism comprises a motor, an eccentric gear and a connecting rod, and changes the rotary motion of the motor into the reciprocating motion of the screening box. The sieve plate set and the screening box are hinged. The sieve plate set is provided with layers of sieve plates. The sieve plates are provided with square inclined holes which become smaller from upper layers to lower layers. Each layer of sieve plate is provided with a hose which is connected with a corresponding cash box. The top sieve plate is provided with the electric mortise lock which matches the lock head of the screening box. The sieve plate set and the screening box are relatively static. The electric mortise lock is connected with the motor. The electric push rod is arranged at the bottom of the frame. The electric push rod jacks up the sieve plate set. The electric push rod is connected with the motor. According to the invention, a paper coin sorting process is semi-automated; the separation accuracy is high; and time and effort are saved.
Owner:NANJING NORMAL UNIVERSITY
Interference standard component error separation method based on least square rotation coupling
The invention discloses an interference standard component error separation method based on least square rotation coupling. Based on a vector optical theory, a three-dimensional light tracing simulation system is constructed for a long-focal-length lens zero interference test system, interference standard component surface shape deviations are separated from a long-focal-length lens test result by use of the simulation system, the problem of introduction of error information of the interference standard component surface shape deviations into a final long-focal-length lens measurement result is solved, and high-precision measurement of GRMS and PSD1 of long-focal-length lens transmission wavefronts is realized. In an error separation process, the key is to find out consistency between space attitude of an interference standard component in the three-dimensional light tracing simulation system and attitude during detection of an interferometer, i.e., a space attitude matching problem of the interference standard component. It is brought forward that by use of a least square principle, through continuous rotation of the space attitude of the interference standard component in the three-dimensional light tracing simulation system, differences of output wavefronts of the simulation system and test wavefronts of the interferometer are enabled to be the smallest, and attitude matching is finished.
Owner:NANJING UNIV OF SCI & TECH
Platelet-rich plasma extracting device
The invention discloses a platelet-rich plasma extracting device. The device comprises a transparent piston knockout, a first transparent liquid collector, a second transparent liquid collector and atransparent catheter, wherein the transparent catheter comprises an inlet end connected with a liquid outlet end of the knockout, a first free end extending into the first transparent liquid collectorand a second free end extending into the second transparent liquid collector, the outer wall of the first free end is connected with a liquid inlet end of the first transparent liquid collector in asealed mode, the outer wall of the second free end is connected with a liquid inlet end of the second transparent liquid collector in a sealed mode, moreover, a three-way valve is arranged in the position, connected with the inlet end, the first free end and the second free end, of the transparent catheter, an inlet of the three-way valve is connected with the inlet end, a first outlet of the three-way valve is connected with the first free end, and a second outlet of the three-way valve is connected with the second free end. Therefore, by controlling the there-way valve, platelet-rich plasmaand platelet-poor plasma can be extracted by means of the platelet-rich plasma extracting device, which is convenient.
Owner:孙传伟
PBMC separation device and method
PendingCN110669643AEasy to separateImprove analytical accuracyBioreactor/fermenter combinationsCell dissociation methodsLiquid wasteMechanical engineering
The present invention relates to the technical field of biomedicine and particularly relates to a PBMC separation device and method. A blood sample collecting head (5) and a separating liquid waste liquid container (6) in the device both communicate with a first three-way valve (9), a washing liquid collecting head (7) and a product collecting container (8) both communicate with a second three-wayvalve (10), besides, the first three-way valve (9), the second three-way valve (10) and a centrifugal barrel (1) all communicate with a third three-way valve (11), a third opposite type photoelectricsensor (14) is arranged between the third three-way valve (11) and an ultrasonic flow sensor (20), the ultrasonic flow sensor (20) is arranged between the third opposite type photoelectric sensor (14) and the centrifugal barrel (1), and besides, a first power mechanism, a second power mechanism, the first three-way valve (9), the second three-way valve (10), the third three-way valve (11), a first opposite type photoelectric sensor (12), a second opposite type photoelectric sensor (13), the third opposite type photoelectric sensor (14) and a camera (15) are all in signal connection with a controller. The separation device has relatively high separation efficiency and also relatively high reliability.
Owner:NINGBO JIANYI ELECTRONICS INFORMATION TECH CO LTD
Single cell automatic separation system and method
InactiveCN112795463AHigh separation accuracyFast separationBioreactor/fermenter combinationsCell dissociation methodsCells isolationEngineering
Owner:SHANDONG UNIV
Elliptic cone threaded nozzle
ActiveCN103540520BImprove consistencyImprove accuracyBioreactor/fermenter combinationsBiological substance pretreatmentsBiological cellScrew thread
The invention relates to the field of biological cells, in particular to an elliptical cone threaded nozzle. The elliptical threaded nozzle is used in the sperm separation system of the flow cytometer, and includes a nozzle chamber and a sperm outlet; Road thread teeth. The elliptical cone thread nozzle provided by the present invention can improve the consistency of the posture of the sperm, thereby improving the accuracy of separating the sperm.
Owner:大连金弘基种畜有限公司 +1
Elliptic cone threaded nozzle
ActiveCN103540520AImprove consistencyImprove accuracyBioreactor/fermenter combinationsBiological substance pretreatmentsBiological cellEngineering
The invention relates to the field of biological cells, and particularly relates to an elliptic cone threaded nozzle. The elliptic cone threaded nozzle is used in a sperm separating system of a flow cytometry. The elliptic cone threaded nozzle comprises a nozzle cavity and a sperm outlet, wherein the nozzle cavity is of an elliptic cone shape, and multiple passes of threads protruding out of the inner wall are arranged on the inner wall of the nozzle cavity. The elliptic cone threaded nozzle provided by the invention is capable of improving the consistency of sperm gestures, thereby increasing the accuracy rate of separating sperms.
Owner:大连金弘基种畜有限公司 +1
Method for improving radiating electromagnetic interference mixed signal blind source separation on basis of signal difference
ActiveCN103018598BEasy to separateHigh separation accuracyElectrical testingAdaptive filterIndependent component analysis
The invention provides a method for improving radiating electromagnetic interference mixed signal blind source separation on the basis of signal difference and is applied to the field of electromagnetic compatibility testing. According to the method, background noise is independently tested at each testing position, radiated emission testing is performed on tested objects at each testing position, test signals for testing the background noise and the tested objects are processed through a self-adapting filter so that electromagnetic interference mixed signals emitted by the tested objects are obtained, then difference processing is performed on a signal matrix composed of the obtained electromagnetic interference mixed signal so as to obtain a new signal matrix, and an independent component analysis method is utilized to perform blind source separation on the obtained new signal matrix. According to the method, the blind source separation effects of the radiating electromagnetic interference signals are improved, separating accuracy is improved, and the separation speed for the electromagnetic interference signal blind source separation is further improved.
Owner:BEIHANG UNIV
Diaminobenzidine separation and evaluation method based on YCbCr color space
ActiveCN110706237AAccurate separationImprove robustnessImage enhancementImage analysisPattern recognitionRadiology
The invention discloses a diaminobenzidine separation and evaluation method based on a YCbCr color space. The method comprises the following implementation steps: S1, acquiring a picture; S2, converting to a color space; S3, generating a Crb or Cbr chromaticity difference picture; S4, setting an offset value; S5, extracting symbol information; S6, performing morphological processing on the information in the step S5; S7, generating a final image; the adopted YCbCr color space most conforms to the color composition nature of diaminobenzidine and hematoxylon dyeing, and a positive dyeing area can be separated more accurately; the final image generated by the method can quantitatively describe the dyeing degree; by using the method, higher separation accuracy can be obtained compared with thetraditional method.
Owner:上海衡道医学病理诊断中心有限公司
A method and system for separating multiple partial discharge sources inside a transformer
ActiveCN107085173BAchieve separationStrong structural adaptabilityTesting dielectric strengthTime domainTransformer
The invention discloses a method and system for separating partial discharge sources in a transformer. The method comprises the steps that the original waveform of partial discharge signals is obtained, and frequency domain signals are obtained from time domain signals; energy accumulated function values of the frequency domain signals and the time domain signals are calculated respectively, and mathematical-morphology gradient calculation is carried out on the frequency domain signals and the time domain signals; and the signal characteristic quantity is extracted on the basis of the energy accumulated function values and the gradient values, dimension reducing and characteristic clustering are carried out successively, and multiple separated partial discharge sources are obtained. The system comprises a waveform obtaining program module, an accumulated function calculating program module, a gradient calculating program module, a characteristic quantity extracting program module, a characteristic quantity dimension reducing program module and a clustering program module. According to the invention, the problems that the transformer structure is complex, transmission paths of the partial discharge signals are complexes and original signals distort seriously are overcome, the multiple discharge sources of equipment, as the transformer, of complex structure can be separated and identified, and the method and system have the advantages of high structural adaptability and high separating accuracy.
Owner:STATE GRID CORP OF CHINA +2
Coin separation counting and identification device and method
The invention discloses a coin separating, counting and identifying device and method. The device comprises a funnel (1), a rotating disc (2), a base (3), a motor (4), a baffle plate (5), electromagnetic valves (6), photoelectric sensor detection holes (7), electromagnetic valves, Hall sensors, a permanent magnet and a single-chip microcomputer. The funnel (1) is provided with an opening which is used for putting coins. The funnel (1) is connected with the base (3) and arranged on the upper surface of the base (3). The rotating disc (2) is arranged on the base (3) and positioned between the funnel (1) and the base (3). The rotating disc (2) is provided with the photoelectric detection holes used for the sensors. The motor (4) is arranged on the lower surface of the base (3) and connected with the rotating disc (2) and used for driving the rotating disc (2) to rotate. The emission electrodes of the photoelectric sensors (7) are fixed on the upper surface of the rotating disc (2), and the receiving electrodes are fixed on the lower surface of the rotating disc (2) and arranged at the position exactly facing the emission electrodes. Automatic counting and separating of the coins and authenticity identifying of the coins can be realized by the coin separating, counting and identifying device and method.
Owner:SOUTHEAST UNIV
A Blind Source Separation Method for Extracting J-Wave Signals from Electrocardiogram
ActiveCN104367315BFast convergenceAvoid interferenceDiagnostic recording/measuringSensorsJ waveTime domain
The invention relate to a J wave extraction method, in particular to a blind source separation for extracting J wave signals in an electrocardiogram on the basis of a cyclostationarity standard. According to the method, a Givens rotation matrix serves as a separation matrix. The J wave signals are a new index of upper chamber repolarization of the electrocardiogram (ECG), and it is indicated in clinical data that shapes of the J wave signals in the ECG are different, randomness is high and the J wave signals are lost in the normal ECG and can not be observed sometimes. In order to accurately extract the J wave signals, according to the method, wavelet packet transform (WPT) is adopted in advance to analyze, reconstruct and position an ST section where J waves are located, and accordingly the calculation amount of blind source separation (BSS) is reduced; according to the characteristics of the ECG and the J wave signals, the ECG stable in circulation and the non-cycle J wave signals are effectively separated by means of the BSS method based on higher-order cyclic cumulant, and guarantees are provided for research of the J wave signals in a time domain in the next step and separation of the good state and the high-risk state.
Owner:TAIYUAN UNIV OF TECH
A kind of identification camera and method for automatically matting portraits
ActiveCN105184787BHigh precisionFast operationImage enhancementImage analysisCopyingImage separation
Owner:GUANGZHOU XINGFU NETWORK TECH
Pedicel removing device for scented tea processing and working method thereof
ActiveCN111632813AGuarantee product qualityImprove work efficiencySievingScreeningPulp and paper industryBiology
The invention discloses a pedicel removing device for scented tea processing and a working method thereof. The pedicel removing device comprises a working cabin; a partition board is arranged in the working cabin to divide the working cabin into a first pedicel removing cabin and a second pedicel removing cabin from top to bottom; a roller is arranged in the first pedicel removing cabin; a material separating pipe is fixed on the partition board and communicates with the first pedicel removing cabin; and a plurality of transmission shafts are uniformly distributed in the second pedicel removing cabin. Through twice pedicel removing, short pedicels are first removed, and then long pedicels are removed, so that pedicels in scented tea are more thoroughly removed, and the quality of the scented tea is ensured; the fully mechanized manner is adopted to remove pedicels, so that the manual sorting technology is avoided, the pedicels removing efficiency of the scented tea is further improved,and the scented tea is prevented from being polluted during the pedicel removing technology to further ensure the quality of the scented tea product.
Owner:临泉县朦顺中药材有限公司
Indoor and outdoor data processing method, device and storage medium
PendingCN112861897AHigh separation accuracyCharacter and pattern recognitionNeural learning methodsEngineeringData mining
The invention discloses an indoor and outdoor data processing method, a device and a storage medium, and relates to the technical field of mobile communication. The indoor and outdoor data processing method comprises the following steps: determining indoor and outdoor attributes of a user and corresponding confidence according to measurement report data; correcting the confidence coefficient according to the user access data which belong to the same time as the measurement report data; determining credible measurement report data according to a preset threshold value, and taking the corresponding indoor and outdoor attributes of the user as mark values of the measurement report data; and training the deep learning model by adopting the credible measurement report data to obtain a classification model for separating the indoor measurement report data from the outdoor measurement report data. Therefore, the indoor and outdoor measurement report data with a more accurate marking result can be automatically constructed as the training data, so that the model obtained through supervised training has higher indoor and outdoor data separation accuracy.
Owner:CHINA TELECOM CORP LTD
Coin sorting and packing machine
ActiveCN105551135BHigh separation accuracyHigh speedCoin/paper handlersElectrical and Electronics engineering
The present invention provides a coin classification checking and packing machine. The coin classification declaration and packing machine integrates the following six functions: separating miscellaneous coins, separating and checking coins with different diameters, flattening and putting straight bank notes, classifying bank notes according face values of the bank notes, collecting and packaging coins and arranging bank notes, and is able to separate the bank notes in one step, so that the efficiency is improved while the labor work intensity is mitigated. The coin classification checking and packing machine comprises a material port and a coin and bank note separation device arranged below the material port. A coin classification device, a coin packing transition device and a packing sealing device are arranged in order at one end of the coin and bank note separation device, and a bank note flattening device, a bank note classification device and a bank note arrangement device are arranged in order of the coin and bank note separation device.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY
Signal estimation method based on first-order differential microphone array
ActiveCN114822579AHigh separation accuracyReduce computational complexitySpeech analysisMachine learningTime domainFrequency spectrum
The invention provides a signal estimation method based on a first-order difference microphone array, and the method comprises the steps: firstly constructing a first-order difference microphone array model, receiving signals through the array, and carrying out the subtraction of the signals received by two microphones, thereby obtaining a time domain difference signal; and then frequency domain analysis is carried out on the difference value signal, it can be found that an amplitude-frequency characteristic curve of the difference value signal has a comb-like structure, and the effect is called a comb filtering effect in the invention. And mathematical analysis is carried out on the effect, and a reverse comb filter is designed according to the mathematical analysis. And filtering the difference signal by using the filter to restore the frequency spectrum of the original signal, and finally restoring the original time domain signal in combination with the phase spectrum to achieve the purpose of signal estimation. The method can effectively solve the problems that a traditional signal estimation method is low in accuracy, and a novel signal estimation method based on deep learning is high in calculation complexity and poor in robustness.
Owner:TIANJIN UNIV
A novel sieve plate type coin sorting device and method
InactiveCN105844772BAchieve one-time separationHigh speedCoin/paper handlersReciprocating motionSteel ball
The invention provides a novel sieve plate type coin sorting device and method. The device comprises a frame, a crank slider mechanism, a slideway, a screening box, a sieve plate set, hoses, an electric mortise lock, a steel ball and an electric push rod. The crank slider mechanism, the slideway and the screening box are arranged on the frame. The screening box matches the frame through the slideway. The crank slider mechanism comprises a motor, an eccentric gear and a connecting rod, and changes the rotary motion of the motor into the reciprocating motion of the screening box. The sieve plate set and the screening box are hinged. The sieve plate set is provided with layers of sieve plates. The sieve plates are provided with square inclined holes which become smaller from upper layers to lower layers. Each layer of sieve plate is provided with a hose which is connected with a corresponding cash box. The top sieve plate is provided with the electric mortise lock which matches the lock head of the screening box. The sieve plate set and the screening box are relatively static. The electric mortise lock is connected with the motor. The electric push rod is arranged at the bottom of the frame. The electric push rod jacks up the sieve plate set. The electric push rod is connected with the motor. According to the invention, a paper coin sorting process is semi-automated; the separation accuracy is high; and time and effort are saved.
Owner:NANJING NORMAL UNIVERSITY
Method for rapidly separating triterpenes and sterols in lucid ganoderma alcohol extract
ActiveCN112603932ASimple and fast operationHigh separation accuracyMetabolism disorderDigestive systemSterolTriterpene
The invention relates to the field of extraction and separation of natural medicines, and discloses a method for rapidly separating triterpenes and sterols in a lucid ganoderma alcohol extract. The method comprises the following steps: packing a column with polyamide resin, eluting with a solvent in a specific ratio to obtain triterpene and sterol eluent in the ganoderma lucidum alcohol extract, and concentrating and drying the eluent to obtain ganoderma lucidum triterpene and ganoderma lucidum sterol. Ganoderma lucidum sterol and ganoderma lucidum triterpenes are similar in structure, similar in polarity, easy to dissolve in an organic solvent, high in separation difficulty, complex in traditional preparation process and high in production cost. Aiming at the defects in the prior art, the invention provides the method for rapidly separating the ganoderma triterpene and sterol components, and the method is very simple and convenient to operate, high in separation accuracy, good in reproducibility, high in safety, lower in cost and suitable for industrial production.
Owner:GUANGZHOU HANFANG PHARMA
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