Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

31results about How to "Reliable processing results" patented technology

POCT (Point-Of-Care Testing) detection device and sample blending device

The invention provides a sample blending device. A sample is sent into reaction cavities arranged by levels; reaction liquid is pre-loaded in each reaction cavity; the sample is fully mixed with reaction liquid in each reaction cavity through the blending device; a liquid extraction device is arranged between two levels of reaction cavities; through a pressure extraction structure, the sample subjected to preorder blending processing is sent into the post-order reaction cavity; the tail end reaction cavity is connected with a reaction tube; and after the sample is processed by the reaction liquid in each reaction cavity, the sample is sent into the reaction tube to be subjected to nucleic acid amplification reaction. A plurality of reaction cavities are arranged to carry out level-by-levelprocessing on the sample, each reaction cavity conveys samples among different reaction cavities through the liquid extraction device capable of carrying out pressure extraction, and finally, the sample is sent into the reaction tube to be subjected to the nucleic acid amplification reaction. Different reaction cavities re arranged to carry out sample processing, the pressure extraction structureis used for carrying out sample conveying, a sample processing structure is simple, sample processing safety is improved through independent reaction cavities, and a sample processing result is reliable. The invention also provides a POCT detection device.
Owner:SUZHOU NUHIGH BIOTECH

Intelligent evaluation and identification method for early damage state of rolling bearing

The invention discloses an intelligent evaluation and identification method for the early damage state of a rolling bearing, and the method comprises the following steps: firstly carrying out the processing of an early damage vibration feature data set of the rolling bearing through employing a minimum and maximum normalization method, and obtaining dimensionless feature data; then establishing asupport vector machine decision tree, and jointly optimizing kernel parameters and penalty parameters of the support vector machine through a particle swarm algorithm; and finally, carrying out automatic classification and intelligent decision making on the rolling bearing damage state data by utilizing a parameter-optimized support vector machine to obtain a state category corresponding to each state feature data, thereby realizing accurate evaluation and identification of the early damage state of the rolling bearing. Accurate classification of the early damage state of the rolling bearing can be achieved only through a small amount of effective data, the operation time is short, the calculation efficiency is high, the evaluation and recognition result of the early damage state of the rolling bearing can be automatically given, the intelligent degree is high, and the state recognition result is accurate and effective. And an important reference basis is provided for safe operation and real-time maintenance of the bearing and equipment.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

A Satellite-Oriented Rotational On-board Computer Fault Tolerance System

A switch type on-board computer tolerant system facing a satellite comprises a control module, a storage module and three single machines, the control module comprises a control unit and a voter, the control module obtains state information parameters from the outside world to set the state modes of the three single machines and sets a current tolerant system working mode after receiving task major parameters sent by the three single machines, and the voter conducts voting after reading the processing results of the three single machines from the storage module and outputs the most of the same results; the three single machines obtain on-board task data, extract task major parameters, send the task major parameters to the control unit, conduct processing on the on-board task data, and send the processing results to the storage module; the storage module receives the processing results of the three single machines and conducts storage. By means of the switch type on-board computer tolerant system facing the satellite, the task level and the backup idea are fused, the real-time performance and the reliability are achieved, the problems that transient faults and permanent faults may occur in the on-board computer can be well solved, and the service time of a system is prolonged.
Owner:BEIJING INST OF SPACECRAFT SYST ENG

Method for eliminating orientation uncertainty of geologic body outside well based on eccentric measurement of dipole acoustic logging instrument

PendingCN114779345ASolve the technical problem of 180° uncertain azimuthReliable processing resultsSurveySeismology for water-loggingPhase differenceAcoustics
The invention discloses a method for eliminating out-of-well geologic body orientation uncertainty based on eccentric measurement of a dipole acoustic logging instrument, and the method mainly comprises the steps: carrying out the eccentric measurement of an orthogonal dipole acoustic logging instrument in a well, separating out an out-of-well reflection signal from collected four-component data, and carrying out the migration imaging; forming a synthetic signal SH transmitted and received in the phi direction by using the four-component reflected signals, and changing the phi value to obtain an angle phi0 when the SH reaches the maximum amplitude; synthesizing signals Ns1 and Ns2 by using the four-component reflection data, and comparing phase differences of the signals Ns1 and Ns2; establishing a law chart that the phase difference between the Ns1 and the Ns2 changes along with the orientation of the reflector; judging the real orientation of the reflector and converting the real orientation to a fixed coordinate system; and carrying out migration imaging on the maximum amplitude signal SH (phi0), and determining the distance from the reflector to the well. According to the method, the azimuth 180-degree uncertainty in dipole transverse wave far detection is eliminated through eccentric measurement of an existing instrument, and the economical efficiency and the practicability are high; and the amplitude and phase information in the four-component reflection signal is comprehensively utilized, so that the processing result is more accurate.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Thermal fluid image processing method and system, terminal and medium

The invention provides a thermal fluid image processing method and system, and the method comprises the steps: firstly extracting the features of a histogram of oriented gradients, then calculating the feature difference of the histogram of oriented gradients, and then carrying out the binarization, segmentation, contour extraction and other operations. The method comprises an algorithm for correcting and updating a dynamic background. Meanwhile, the invention provides a corresponding terminal and a medium. The difference between the target area to be detected and the background area can be increased by extracting the histogram characteristics of the oriented gradients of the target area to be detected and the background area. The invention can be applied to the field of thermal fluid image processing, target identification, edge detection and segmentation are performed on the to-be-detected area and the background area, the nvention has advantages under the conditions that the difference between the to-be-detected target and the background is small and the background changes along with frames, and the invention is low in parameter setting sensitivity and good in universality. The invention can be oriented to different cases, working conditions and optical systems, programs are easy to implement, the processing speed is high, and results are accurate and reliable.
Owner:SHANGHAI JIAO TONG UNIV

Analysis method for actually measured pressure data in hydraulic transient process

The invention discloses a method for analyzing actually measured pressure data in a hydraulic transient process, which relates to the field of electric power and comprises the following steps of: extracting mean pressure to obtain instantaneously changed pressure fluctuation data; performing time-domain grid distribution division on the obtained pressure fluctuation data to divide the pressure fluctuation data into a plurality of time grid regions, analyzing the pressure fluctuation data in each time grid region by using an empirical cumulative distribution function to obtain probability distribution of each data, performing confidence probability processing, and combining processed data groups of each time grid region to obtain the probability distribution of each data; obtaining processed pressure fluctuation data; the average pressure is added back to the processed pressure fluctuation data, and the total pressure data subjected to confidence probability processing in the whole time domain are obtained.According to the method, the test actual measurement extreme value result and the transition process pressure change process can be well evaluated, the draft tube pressure fluctuation process can be well analyzed and evaluated, safe and stable operation of a unit is ensured, and the reliability of the draft tube is improved. And a solid technical guarantee is provided for safe and stable operation of a power station.
Owner:DONGFANG ELECTRIC MACHINERY

A Multidimensional NMR Molecular Diffusion Coupling Imaging Method

ActiveCN109507221BShorten experiment timeAvoid the problem of poor acquisition signalAnalysis using nuclear magnetic resonanceVoxelPulse sequence
The invention relates to a multidimensional nuclear magnetic resonance molecular diffusion coupling imaging method, which comprises the following that S1: a nuclear magnetic resonance pulse sequence is designed to realize measurement of a sample to be tested, and nuclear magnetic resonance signal acquisition of the sample to be tested is completed; S2: the acquired nuclear magnetic resonance signal is subjected to nuclear magnetic resonance data processing and analysis to obtain local voxel molecular diffusion coupling information; S3: the layer selection gradient, phase encoding gradient andfrequency encoding gradient are adjusted to obtain molecular diffusion coupling distribution of the sample to be tested under different spatial positions, and the molecular diffusion coupling distribution under all the spatial positions is reconstructed to obtain three-dimensional molecular diffusion coupling imaging results of the sample to be tested. The method of the invention avoids the problem of collecting signal difference caused by the very short relaxation time of biological tissue or material, and uses CPMG echo string in the acquisition process to add the signal amplitudes of different echoes together, and further to improve the signal to noise ratio of the signal, and to ensure the accuracy and reliability of the processing results.
Owner:INSITUTE OF BIOPHYSICS CHINESE ACADEMY OF SCIENCES

A Method of Microcontact Characteristics and Image Thresholding Based on Morphological Features

The invention provides a micro-contact characteristic and image threshold value processing method based on feature characteristics. The micro-contact characteristic and image threshold value processing method comprises the following steps: carrying out surface imaging on the surface of a sample needing to be researched to obtain micro-feature characteristics of the surface of the sample; setting a sampling dot matrix density and outputting dot matrix data for describing a surface outline characteristic; after removing error points and carrying out interpolation treatment, carrying out reading-in treatment to lead a fitted curved surface in to carry out contact analysis; sealing the curved surface into an entity through MODEL operation to establish a sealed entity; carrying out mesh generation on the led entity and carrying out a plurality of times of thinning of a surface mesh to obtain a finite element model for analysis; and carrying out pre-stress contact analysis to obtain a pre-stress distribution image of a contact surface to obtain conditions of pre-stress with different threshold value ranges. A researcher calculates areas occupied by outlines under different colors so as to accurately obtain a contact area between the contact surfaces under a contact state. According to the micro-contact characteristic and image threshold value processing method disclosed by the invention, the contact characteristics of the contact surfaces can be effectively and accurately obtained.
Owner:BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products