473results about How to "Simplify the analysis process" patented technology

The invention discloses a multi-target tracking method based on a recurrent neural network, comprising the following steps: building a monitoring video data set marked with each frame of pedestrian location; manually expanding the monitoring video data set marked with each frame of pedestrian location to get training set samples; grouping the training set samples to get multiple training groups; building a multi-target tracking network; inputting the training groups in sequences to the multi-target tracking network for training; and inputting video data to be tested to the trained multi-target tracking network and performing forward propagation to get the moving trajectories of multiple targets. According to the invention, a proposed network model is trained in an end-to-end manner using raw data and a large amount of data obtained through artificial expansion, complex tasks such as data association and track estimation are completed under a unified neural network architecture, and the moving trajectories of targets can be tracked effectively under different directions, light conditions, deformations and other complex environments.

The embodiment of the invention discloses a log analysis method and device, computer equipment and a storage medium. The method comprises the steps of in response to a log analysis request, according to service chain identification burying point messages in a log, finding a service chain log message block corresponding to the log analysis request from the log; according to a pre-defined service chain directed graph and reorganization service chain burying point messages in the log, reorganizing the log messages in the service chain log message block, and generating a target service chain directed graph corresponding to the log analysis request; according to a question positioning burying point message in the log, determining a question flow in the target service chain directed graph. According to the log analysis method and device, the computer equipment and the storage medium, based on the service chain directed graph, the service chain identification burying point messages and the burying point message for reorganizing the log and positioning questions, log analysis is implemented in a service scene. For the situation that context scenarios of services are distributed in multiple terminal requests, the analysis process is simplified, and efficient analysis and question positioning are achieved.

A consumer food testing device for testing for the presence of harmful contaminants in a food sample, includes a system for producing a visual cue upon detection of a harmful chemical, biological, and / or ionizing radiation contaminant; and a processing system responsive to the detection of a harmful contaminant, for transmitting the global position of the consumer testing device, the identity of the harmful contaminant, and the time and date to a remote monitoring facility.

The invention provides a method for measuring direct current internal resistance, full charge capacity and remaining power of a battery pack. The method comprises the following step of building a discharge circuit in a battery module, wherein the discharge circuit can be controlled by a switch, and discharge current of a lithium battery is a fixed value in a certain period of time, and is not changed with a system load. The electric capacity of the lithium battery can be easily and precisely derived from the obtained direct current internal resistance.

A method of using an electronic nose for detecting freshness of river crucian carp includes the steps: (1) placing river crucian carp samples to be detected into a sample container, sealing and standing for 20-40min at the room temperature; (2) inserting a filtered gas probe of the electronic nose into the sample container for 40-60s, and collecting top gas; (3) enabling the gas to enter a gas sensor array for detection and analysis; and (4) collecting and storing related data of gas according to the specific process: (4-1) extracting response characteristic values of the gas sensor array, wherein the response characteristic values include an initial value, a stable value, rise time and rise rate; (4-2) curing a non-linear stochastic resonance algorithm into a digital signal processor internally arranged in the electronic nose, and inputting the original response characteristic values of the electronic nose into a DSP (digital signal processor) and outputting a signal-to-noise-ratio spectral characteristic value by computing; and (4-3) computing a freshness value of the river crucian carp according to a freshness prediction model and the signal-to-noise-ratio spectral characteristic value. The method is simple, convenient, rapid and effective.

The invention discloses a method for using an electronic nose to detect the freshness of chicken. The invention aims at providing a method which uses the electronic nose to detect the freshness of chicken, has the advantages of rapidity and simpleness, easy use and objective and reliable detection result, and can reduce the impact of storing conditions to the detection result. The method comprises the following steps: a chicken sample to be detected is put into a sealed container and then heated in water bath with thermostatic control; the heated chicken sample is put into a test room, and then smell sent by the sample is detected by a gas sensor array which consists of four gas sensors of different types; the data which is aquired by the gas sensor array is collected and processed; and then the freshness of chicken is judged according to the processing result of the data. The detection method uses an electronic nose which consists of four gas sensors of different types to detect the chicken sample, and has the advantages of objective, accurate, and fast detection result, good repeatability, simple analysis process and small using amount of sensors, and reduces the extraction of eigenvalues.

The invention discloses a foundation pile foundation model analyzing method and a test device for the same. The method includes: building a dispersing spring support model of to-be-tested pile-earth related actions, building a to-be-tested pile inner force and deformation equation and transmission matrix, and a to-be-tested pile foundation reaction analyzing basic equation, building different founding reaction models and programming a corresponding computerizing program, arranging the foundation pile foundation test device in the field, measuring horizontal displacement and turning angle, on the ground, of the to-be-tested pile, and computerizing and analyzing according to the computerizing program to determine corresponding foundation reaction model parameters. The foundation pile foundation test device comprises a standard beam, a standard pile, a reaction pile and the to-be-tested pile which are disposed on the ground, a jack and a force sensor are connected between the reaction pile and the to-be-tested pile, and a angle measuring device and a displacement measuring device are disposed on the to-be-tested pile. By on-site pile testing, multiple hypothesis models can be built for the foundation pile foundation, related model parameters can be determined, and certain universality is achieved.

The invention discloses an electrocardiosignal noise analysis method comprising the following steps of: (1) calculating a noise index for reflecting the noise level near an R wave in each cardiac beat period of an electrocardiosignal; (2) setting a noise index threshold value; (3) comparing the calculated noise index with the noise index threshold value and carrying out statistics on comparison results of continuous N cardiac beats; and (4) classifying the noise level according to the comparison results and dividing noise grades. The invention has a simple analysis process, low computational burden, good real-time performance and an accurate result; through electrocardiograph (ECG) noise analysis result, medical workers can carry out necessary treatment to suppress interference and can know the reliability of a diagnosis result, further more accurately and effectively helping the medical workers diagnose and treat patients, thereby avoiding that a wrong diagnosis result makes the medical workers carry out wrong handling so that unnecessary spiritual damage and economic losses are brought to the patients.

The invention discloses a method and a device for analyzing trace gaseous elemental mercury, and belongs to the technical field of atmospheric environment monitoring. In the method, the whole analysis process is controlled by a programmable logic controller. The method comprises the following steps of: arranging a mercury trapping tube collecting atmospheric gaseous elemental mercury (GEM) samples into a pyrolysis releaser for rapid heating, removing acid components carried by released HgO vapor from the released HgO vapor, introducing the HgO vapor into a secondary enrichment / pyrolysis releaser, and secondarily absorbing the HgO vapor by using the mercury trapping tube in the secondary enrichment / pyrolysis releaser; and rapidly heating the secondary enrichment / pyrolysis releaser, and blowing the secondarily pyrolyzed desorbed HgO vapor into a cold atomic fluorescence detector for quantitative detection by using a carrier gas. The device provided by the invention has a simple system, and is reliable in running; the atmospheric GEM samples collected by the mercury trapping tube are analyzed after being secondarily enriched, pyrolyzed and released so as to effectively reduce the limit of detection of the device and meet the requirements of trace analysis on the atmospheric GEM.

The invention discloses an automatic metaphor rhetoric sentence analysis and judgment method based on part of speech, syntax and a dictionary. A randomly input sentence is taken as a processing object, and the method comprises the following steps: (1) segmenting words and carrying out part-of-speed tagging; (2) deleting a modifier based on syntactic analysis; (3) deleting redundant ingredients based on a simple subordinate clause; (4) deleting redundant ingredients based on a metaphoric word; (5) reducing a range of a candidate body and a candidate metaphorical object by virtue of dependency relation; (6) screening the candidate body and the candidate metaphorical object according to the dependency relation formed by corresponding words of root nodes; (7) extracting the candidate body and the candidate metaphorical object according to a simple metaphoric sentence extraction rule; and (8) realizing automatic analysis and judgement on a metaphor rhetoric sentence based on automatic judgement of a metaphor rhetoric technique. The method disclosed by the invention is high in automation degree and high in judgement accuracy rate and can be widely applied to automatic metaphor rhetoric analysis and judgment systems of the fields of natural language deep understanding, machine translation, computer-assisted instruction and the like.

A method of using an electronic nose for detecting freshness of tilapia includes the steps: (1) respectively placing back and belly samples of tilapia to be detected into a sample container, and standing for 20-40min at the room temperature; (2) inserting a sample injection pinhead of the electronic nose into the sample container at the normal temperature, inserting an air filter filled with activated carbon into the sample container to balance air pressure, starting the electronic nose, and enabling the electronic nose to suck gas given out by the standing samples inside; (3) detecting the gas given out by the samples by the aid of a gas sensor array inside an electronic nose gas chamber, wherein detecting time is 40-60s, and cleaning time is 3-8min; (4) setting an experimental period interval as 10-12 hours; and (5) collecting data acquired by the gas sensor array, performing data processing for the acquired data, and computing so that a freshness value of the tilapia is obtained. The method is simple, convenient, rapid and effective.

The invention relates to a system and method for the design of a pipe support hanger. The pipe support hanger includes a logic support hanger insertion module, a solid three-dimensional support hanger generating module, a stress analysis module, a support hanger design module and a three-dimensional collision check module, wherein a logic support hanger is allowed to be inserted in logic support hanger insertion module, the solid three-dimensional support hanger generating module is used for generating a three-dimensional support hanger used for occupying space and a real three-dimensional support hanger, the stress analysis module is used for conducting stress analysis and the corresponding three-dimensional model modification, the support hanger design module is used for generating a data file required by the design, and the three-dimensional collision check module is used for conducting collision analysis. According to the system and method for the design of the pipe support hanger, rapid automatic insertion of the logical support hanger is achieved; the solid three-dimensional model of the support hanger can be generated and the collision analysis of the support hanger can be conducted before the stress analysis is conducted; the follow-up inspection and analysis processes are greatly simplified, redesign and recalculation caused by collision are greatly reduced, bi-directional mutual conductance among three-dimensional design data, stress analysis data and support hanger design software data is achieved, repeated inputting of the data is avoided, and probability of errors caused by manual input is greatly reduced.

The invention discloses a magnetic coupler which comprises a power input shaft, connecting flanges, permanent magnet outer rotor assemblies, cage type inner rotors, a power output shaft and a mechanical speed adjustment device, wherein the permanent magnet outer rotor assemblies have hollow cup-shaped structures, are sleeved outside the cage-type inner rotors and realize transmission of torque under the coupling action of an air gap magnetic field between the permanent magnet outer rotor assemblies and the cage-type inner rotors; the mechanical speed adjustment device can change axial air gap areas between the permanent magnet outer rotor assemblies and the cage-type inner rotors according to a lever theory, thus realizing stepless speed variation for load rotating speed. According to the magnetic coupler, a method for designing the number of pole pairs of the permanent magnet outer rotor assemblies is provided on the basis of a minimum torque ripple rule, so that the thickness of yokes and the rotating inertia of the coupler are reduced. The cage-type inner rotors can adopt structures which are the same as or similar to that of the conventional motor cage rotor iron core. The magnetic coupler disclosed by the invention can be coaxially connected with a load and can be used as a belt wheel adapter matched with a belt wheel.

The invention discloses a stratum overpressure formation mechanism analyzing method. A single well is adopted to actually measure stratum pressure, the stratum pressure prediction method and the stratum overpressure formation mechanism are combined, and by comparing differences among different pressure prediction curves and differences between prediction curves and an actual measurement curve, the stratum overpressure formation mechanism is analyzed. The invention adopts three stratum pressure prediction methods, namely, the Eaton method based on undercompaction formation, the equivalent depth method and the Bowers method based on fluid expansion formation. The invention analyzes the stratum overpressure formation mechanism by comparing the differences among different pressure prediction curves and the differences between prediction curves and the actual measurement curve, the analysis process is simple, influences of artificial intervention are few, and the prediction result is more reliable.

The invention relates to a dinucleotide-labelled ratio electrochemical immunosensor. The dinucleotide-labelled ratio electrochemical immunosensor is characterized in that DNA3 of sulfydryl and ferrocene are respectively labelled at the two assembled ends of the surface of a gold electrode and are hybridized with methylene-blue-labelled complementary DNA1-antibody1 so as to form a ratio electrochemical immunosensor interface. When target protein exists, a DNA2-antibody2, the target protein and the DNA1-antibody1 form sandwiched immune complex to generate a vicinal effect, and DNA2 is hybridized with DNA1, so that the DNA1-antibody1 is separated from a sensing interface, and freed DNA3 forms a hairpin structure on the surface. In the process, methylene blue and the ferrocene with electrochemical activity are separated from and close to the surface of the electrode respectively, and the oxidized electric currents of the methylene blue and the ferrocene are reduced and increased respectively. By detecting the ratio of the two currents, the concentration of the target protein in the solution is detected. The immunosensor is high in sensitivity, wide in the detection range, realizes fast and one-step detection of protein, and has clinical application value.

The invention relates to a method for discriminating a plastic article and provides a method for discriminating multiple waste plastic kinds. The subsequent treatment calculated amount is reduced, the calculating time is saved, a sample can be directly discriminated and analyzed without being pretreated, and the operation and implementation in the industry are facilitated. Thus, according to the technical scheme adopted by the invention, the method for discriminating multiple waste plastic kinds by adopting a near infrared spectrum characteristic wavelength comprises the following steps: 1, acquiring original spectrums of multiple waste plastic standard samples by adopting a Fourier near-infrared spectroscopy; 2, performing K-M transformation on the acquired original spectrums; 3, performing principal component analysis on the spectrum data subjected to the K-M transformation, and extracting characteristic spectrums; 4, performing Fisher discrimination and establishing a discrimination model; and 5, discriminating and classifying unknown kinds of plastic by adopting the discrimination model established in the step 4, namely, a discriminant. The method is mainly applied to discrimination of the plastic article.

The invention provides an open-circuit short-circuit detection circuit of a car-mounted terminal antenna. A first triode base is connected with a second triode base and a collector; a first triode collector is connected with a fifth resistor and a sixth resistor which are serially connected with each other; one end of the sixth resistor, which is connected with the fifth resistor, is grounded, and the other end of the sixth resistor is connected with a second triode collector and is connected with a first voltage collection point through a seventh resistor at the same time; a first triode emitter is connected with a power supply through a third resistor; a second triode emitter is connected with the power supply through a first capacitor and a first resistor which are parallelly connected with each other; the second triode emitter is connected with the antenna through an inductor; the inductor and the antenna are grounded through a second capacitor; the second triode emitter is connected with a second voltage collection point through a second resistor; and the second resistor and the second voltage collection point are grounded through a fourth resistor. With the adoption of the open-circuit short-circuit detection circuit, whether a compass navigation satellite system (CNSS) or a global positioning system (GPS) antenna is in an open circuit and a short circuit state or not is automatically detected.

The invention discloses a method for detecting an object to be detected by using an SPR biosensor. The method uses a biotin-streptavidin-magnetic particle as a signal reporting molecule which can amplify a signal of a hybridization result; therefore, the problem that marking of a probe or an object to be detected before hybridization influences natural binding of biological molecules is avoided, the requirement of improving detection sensitivity of the SPR biosensor is realized, and generated signals are stable and are easy to detect, which enables result detection and analysis to be substantially simplified. According to the invention, amplification of a detection signal is realized after hybridization, so variation and variation quantity of SPR signals before and after the detection signal is amplified can be more visually and clearly observed; meanwhile, the biotin-streptavidin-magnetic particle technology is used in the invention, and no expensive detector is needed, thereby reducing technical cost and economic cost needed for enhancing sensitivity of the biosensor.

The invention relates to a method and a system for confirming and optimizing the throughput rate of short range wireless network. The invention mainly obtains every time parameter of competing visit period according to the information transmission characteristic of the short range wireless network. Every time parameter is used for calculating and optimizing the throughput rate of network. The time parameter is confirmed based on non-persistent carrier wave interception multipoint access CSMA. So the invention uses non-persistent CSMA for analyzing short range wireless network (competing visit period), which simplifies the complex degree of the whole process of confirming network throughput rate and network optimization and analysis. So the throughput rate parameter of short range wireless network of normative network can be obtained with accuracy, which facilitates the optimization treatment to network performance. The performance of short range wireless network is effectively improved.

The invention belongs to the technical field of analysis and in particular relates to a device and method for combining electrochemistry with electrospray ionization mass spectrometry. The device is composed of an electrochemical reactor and an electrospray ionization ion source. The electrochemical reactor comprises a work electrode chamber and an auxiliary electrode chamber which are isolated from each other through a diaphragm, the diaphragm has the effects of preventing or delaying a neutral substance from exchanging between the electrode chambers and allowing an ion to exchange with an electric ion. A solution sample can be subjected to electromechanical reaction under the effect of an electrochemical voltage loaded between the work electrode and the auxiliary electrode when flowing in the work electrode chamber. An electrochemically reacted product is protected by the diaphragm and then forms an air-phase ion under the effect of the electrospray ionization work voltage, and the air-phase ion is analyzed by a mass spectrometer. According to the invention, the electromechanical reaction efficiency is higher, the electromechanically reacted product is simple, and the response speed is high, thus the device and method provided by the invention adapt to the rapid, accurate and high-flexible advantages of the quantitative analysis and the mass spectrum analysis.

The invention provides an error analysis method based on vision stitching measurement, belongs to the technical field of computer vision measurement, and relates to the error analysis method based onvision stitching measurement. The method is based on a laser tracker and a binocular vision system for stitching measurement. The method comprises the steps that multiple common points are arranged inthe public field of view; a binocular camera is used to collect an image and extract the pixel coordinate of the image; the laser tracker simultaneously collects the coordinate of each common point,and the coordinate value is in a world coordinate system; the influence of the pixel error of point extraction on an external parameter matrix is calculated; the influence of the error of the externalparameter matrix on the coordinate value error of a point in the world coordinate system and the influence of the coordinate of the point in a vision coordinate system on the coordinate value error of the point in the world coordinate system are calculated; and finally the comprehensive error of a point to be measured in the world coordinate system is acquired. The method has the advantages of simple analysis process and clear error transfer chain. The layout of common points is optimized according to error analysis, which improves the overall accuracy of a measurement system.

The invention provides an online converter parameter identification method based on an observer. An inductive current and output voltage of a converter are subjected to synchronous sampling, a converter discrete model is established, and the converter discrete model is subjected to online parameter identification through the observer. The observer principle is adopted for the online converter parameter identification method based on the observer, main circuit parameters of the converter are subjected to non-invasive online identification, an accurate parameter identification result can be obtained without affecting normal work of the converter, and multiple parameters including the filtering inductance value, the inductance equivalent series resistance value, the filtering capacitance value, the filtering capacitance equivalent series resistance value, the load resistance value and the like can be identified accurately on line according to the output voltage sampling value, the inductive current sampling value and the controller output of the converter. The online converter parameter identification method is easy to implement, simple in analysis process and wide in application range.

The invention relates to a CFD (computational fluid dynamics) based method for computing equivalent length of a valve. The method includes the steps: establishing a three-dimensional assembly model of the valve, after an extension section is added to an entry and exit position of the valve model, importing the model into CFD software, working out pressure values of multiple working conditions by analog calculation of the CFD software and computing corresponding pressure differences; according to the pressure differences, respectively computing multiple flow coefficient values through a formula, and then computing an average flow coefficient value; computing an equivalent length value of the valve through a formula. Flow performance data of the valve are obtained by the aid of CFD technological analogue simulation, only drawings are needed to be used for completion in a virtual prototype phase in the initial stage of development, and the situations that manpower and material resources are wasted and development cycle is prolonged due to the fact that the valve must be manufactured and subjected to test measurement in order to detect flow performance of the valve in the prior art are avoided, so that development efficiency is greatly improved and cost is saved by the method.

The invention discloses a method for detecting freshness of crab by utilizing an electronic nose. The method comprises the following steps: (1) putting a to-be-detected crab sample into a sample container, sealing and standing for 30-50min at room temperature; (2) inserting a filtered gas probe of the electronic nose into the sample container, setting time as 40-60s and collecting headspace gas; (3) guiding the gas to enter into a gas sensor array, detecting and analyzing; (4) collecting and storing the related data of the gas through the following specific steps: 1) extracting response characteristic values of the gas sensor array, including an initial value, a stable value, a rise time and a rise speed, 2) in a DSP (Digital Signal Processor) built in the electronic nose, inputting the collected original response characteristic values of the electronic nose to the DSP and calculating an output signal-to-noise ratio spectrum signature value according to a solidifying nonlinear stochastic resonance algorithm, and 3) calculating a freshness value of the crab according to a freshness forecasting model and the signal-to-noise ratio spectrum signature value. The method provided by the invention is simple, convenient, high-speed and effective.

The invention relates to the technical field of brain computer interfaces, in particular to an idea collection device, telephone terminal and system based on a brain computer interface. The collection device comprises a head wearing ring, the middle of the head wearing ring is provided with a stretching elastic plastic member provided with an EEG signal acquiring unit, a signal preprocessing module and a wireless transmitting module which are connected electrically and sequentially; the EEG signal acquiring unit is composed of four electrodes, including one reference electrode and three EEG signal acquiring electrodes; the reference electrode and the EEG signal acquiring electrodes are fixed to the stretching elastic plastic member through electrode caps, are arranged according to an 'international, 10 / 20 standard lead system' and are connected to the signal preprocessing module. Signal processing and analysis are simplified, the lead number is decreased, and the equipment complexity is lowered.

The invention discloses a voice analyzing method and system and a voice collecting front-end device that are applied to the field of communication technology. The method of the invention comprises: the data packet of a UDP odd port is obtained in the collected voice data packet and a RTCP data packet is obtained by judging the version number and the message type of the data packet of the UDP odd port; the RTCP data packet is decoded to obtain a voice link damage index and an SSRC mark; a voice link corresponding to the RTCP data packet is confirmed by utilizing the port of the RTCP data packet and the SSRC mark; the voice link damage index is utilized to analyze the corresponding voice link. The invention provides a voice analyzing system and a voice collecting front-end device. When the invention carries out high flow voice data analyzing, the analyzing process is simple, fast and accurate.

A method for establishing and determining a slab caster-overhauling reference coordinate system belongs to the technical field of measurement control. The process steps are as follows: construction preparation, reliable reference initial data acquisition, coordinate system establishment, coordinate system determination and correction. The method is used for establishing a reference coordinate system in the process of checking and adjusting the main part of a slab caster when the precision of the casting blank-guiding section of the slab caster cannot meet product requirements due to various reasons after the slab caster is used for a period of time. The method has the advantages that: check and analysis are carried out by means of the supporting framework of the fan-shaped section of the slab caster, the method does not totally depend on original reference points, the actual state of the equipment can be fully and truly reflected, reliable reference can be sufficiently utilized, and the coordinate system can be comprehensively determined and corrected; the checking efficiency is increased; the coordinate system can be more reasonably and accurately established, and the process of data analysis is greatly simplified.

The invention discloses an organic photoelectric material molecular orientation characterization method. The method includes: establishing a film transmission matrix of a to-be-tested sample accordingto a characteristic matrix of each film in an optical model by establishing the optical model of the to-be-tested sample; constructing and parameterizing a dielectric function model of a to-be-testedsample material to obtain optical constants of the to-be-tested sample, calculating according to the optical constants and the film transmission matrix to obtain a theoretical Mueller matrix spectrumof the to-be-tested sample, adopting an iterative algorithm for fitting the theoretical Mueller matrix spectrum with a measured Mueller matrix spectrum to extract an extinction coefficient of the sample, and calculating to obtain molecular orientation of the to-be-tested sample according to a constructed model of relation between molecular orientation of the to-be-tested sample and the extinctioncoefficient. By creation of a universal analysis method, the 4*4 Mueller matrix obtained by measurement with a Mueller matrix ellipsometer is calculated and analyzed to obtain molecular orientation of a photoelectric material, and the method is suitable for quick and accurate calibration of organic molecular orientation in organic photoelectric devices.

The invention discloses a CAE automatic simulation analysis method and system, being characterized in that the corresponding CAE analysis process is analyzed and standardized in detail; an analysis process is modularized; the modules are programmed through an object-oriented language, for example, c + + language; the QT interface framework develops a software interface; a C + + single profit modeis adopted to manage the data; parameters such as projects and grids are stored in an engineering file in an XML file mode; a batch mesher mode of Hypermesh is called by using a TCL / TK language background to carry out pre-processing; and functions of finite element modeling, solving, post-processing and the like are realized, and analysts and designers are helped to quickly establish an analysis model, calculate and check a calculation result, and the analysis efficiency is improved, and errors are reduced.