35results about How to "High separation accuracy" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.