209results about How to "Quick Discrimination" patented technology

The invention discloses a driver fatigue monitoring device based on multivariate information fusion and a monitoring method thereof. The device comprises a digital signal processor, a camera head with a filter, a rectangular ultrared LED light source module mounted on a car windshield, a speaker module and a sensor module comprising an angular sensor and a pressure sensor, wherein the camera head, the rectangular ultrared LED light source module, the speaker module and the sensor module are respectively connected with the digital signal processor. The monitoring method comprises four procedures, namely eye characteristic identification, view line track, driving activity monitoring and fatigue characteristic judgment which merges the fatigue judgment results of the eye characteristic identification, the view line track and the driving activity monitoring to accurately judge the fatigue states of a driver. The invention utilizes an information merging technology to further develop and improve a fatigue driving detection technology, can objectively, rapidly and accurately judge the fatigue state of the driver in real time and avoids traffic accidents caused by fatigue driving.

The invention discloses a DG (distributed generation)-containing power distribution network distributed protection and control method, and provides a protection and control technical method based on an AFTU (advanced feeder terminal unit) for the phenomenon that the high-permeability distributed power access power distribution network causes great difficulties in traditional power distribution protection and control. The method disclosed by the invention divides the DG-containing power distribution network into multiple areas capable of running as islands in advance according to the DG capacity and load. Circuit breakers and AFTUs are arranged at the feeder outlet, the DG access position and the area boundary, and the AFTUs are connected through an optical network. Each AFTU detects local electric quantity information in real time and performs information interaction with other AFTUs. The method disclosed by the invention quickly positions the fault section according to the local and neighbor electric quantity information, and realizes the fault isolation and island running. A reclosing and island network re-connection control strategy is designed by use of the related AFTU information.

A method for electronically stabilizing hybridization of nucleic acids bound at a test site of a microelectronic device is described. First and second negatively charged nucleic acids are provided, the second nucleic acid being bound to the test site. A zwitterionic buffer having a conductance of less than 100 mS / cm is applied to the microelectronic device. A current is applied to the test site to positively bias the test site, such that the first negatively charged nucleic acid is transported to the positively biased test site having the bound the second negatively charged nucleic acid. At the test site, the first and second negatively charged nucleic acids hybridize. The zwitterionic buffer acquires a net positive charge under influence of the current, such that the positively charged zwitterionic buffer stabilizes the hybridization by reducing the repulsion between the first and second negatively charged nucleic acids

The invention discloses a side slope stability prediction method under an earthquake effect. The method comprises the following steps of 1, stability influence factor determination of a side slope to be predicted wherein 6 influence factors comprises 4 internal factors and 2 external factors; the 4 internal factors are a geological condition of the side slope to be predicted, a slope angle A, a slope height H and a fracture zone distance R; the 2 external factors are a rainfall intensity and an earthquake intensity s of an area of the side slope to be predicted; 2, side slope stability influence index assignment: carrying out assignment on 6 side slope stability influence indexes of the side slope to be predicted respectively; 3, slope stability influence integration index value calculation of the side slope to be predicted: calculating the stability influence integration index value H of the side slope to be predicted according to the 6 side slope stability influence indexes; 4, stability prediction of the side slope to be predicted. Steps of the method in the invention are simple, the design is reasonable and realization is convenient. A usage effect is good. A prediction process of side slope stability under the earthquake effect can be simply and rapidly completed and prediction precision is high.

The invention discloses a fraudulent phone call prompting method, service and system. The method comprises the steps that a switch receives a mark signal of a called terminal, a calling number related to the conversation of a called number in the mark signal is transmitted to a server; the service counts the number of times for receiving the calling number; if the number of times reaches a preset threshold value, the calling number is recorded in a fraudulent number list; the server periodically collects all calling numbers and called numbers related to the calling numbers in a period from the switch, matches the calling numbers collected each time with the calling numbers marked as fraudulent phone calls in the fraudulent number list and prompts the called numbers related to the matched calling numbers with the information that the calling numbers are the fraudulent phone calls if the matching succeeds. The fraudulent phone call prompting method, service and system are not limited to the types of conversation terminals, meanwhile, the fraudulent numbers can be distinguished at a network side (an operator side), and the fraudulent prompting services can be provided for all the users having conversation records in the switch.

The invention discloses a method of recognizing a communication signal modulation mode based on feature extraction. As for received signals, a normalized power spectrum and the number K of spectrum peaks in the case when a constant B is exceeded in the normalized power spectrum are firstly calculated, and the communication signal modulation mode is comprehensively recognized according to the K value, the maximal value gamma<max> of the spectral density of the normalized zero center instantaneous amplitude and a ring feature parameter num. According to the method of the invention, the communication signal modulation mode can be quickly and accurately recognized.

The invention discloses a zhenjiang fragrant vinegar storage time identification method based on multisensor fusion. The identification method comprises the following steps of: selecting fragrant vinegar with different storage times as a representative sample; obtaining color and smell information of the sample by utilizing a colour olfactory sense sensor (a sensor array which is formed by fixing 9 porphyrins and derivatives of the 9 porphyrins, and 6 pH tracer agents on a hydrophobic membrane); obtaining the taste information of the sample by utilizing a multi-electrode taste sensor system (the taste sensor system is composed of four working electrodes including a gold electrode, a platinum electrode, a copper electrode and a glassy carbon electrode and a reference electrode through combining); and fusing the collected two groups of information data, and establishing a model of the relevant information, thus realizing identification on the storage time of the sample to be detected (see attached maps of the abstract for detailed steps and thoughts). The identification method provided by the invention identifies the fragrant vinegar at different storage times by utilizing a smell sense sensor and taste sense sensor fusion technology, meanwhile, the operation is simple, convenient, rapid and intelligentized, the information is complemented, and the result is reliable.

The invention relates to a device realizing the track-traffic direct-current feeding protection, the invention is characterized in that the device consists of an embedding-typed system, a switch controlling module, an A / D conversion module, an I / V conversion module and a collection input port, wherein, the embedding-typed system is respectively connected with the switch controlling module and the A / D conversion module, and the A / D conversion module is connected with the collection input port through the I / V conversion module. The device performs the detection and the judgment on the independent protection of the over-current instant protection, the over-current time-delay protection, the thermal inverse-time-lag protection, the near short-circuit protection and the far short-circuit protection, and can record the waveform data 300 ms before and 200 ms after the action while triggering the protection, thereby rapidly and correctly removing the malfunctions when the short circuit and the overloading are happened on the train contact line of a direct-current pulling network-circuit feeding system and preventing the mistake tripping operation of the protection device, which is caused by the variation of electric parameters while the train is in normal operation through the setting adjustment.

A high-voltage DC power transmission line single-end protecting method based on wavelet energy relative entropy mainly comprises the steps of 1), performing data acquisition and preprocessing, acquiring a current signal by a current measuring device, performing phase-model transformation by a protective data processing device by means of an orthogonal transformation matrix, and obtaining the inside 1-mode current xa(n) of a line boundary and the outside 1-mode current xb(n) of the line boundary; 2) calculating the wavelet energy relative entropy, namely performing wavelet transformation on the inside 1-mode current Xa and the outside 1-mode current Xb, and calculating the wavelet energy relative entropy M between the inside 1-mode current vector Xa and the outside 1-mode current vector Xb; and 3), performing high-voltage DC power transmission line single-end protection, namely determining whether the wavelet energy relative entropy M is larger than a preset protecting threshold epsilon, if M is larger than the epsilon, determining a fact that the fault occurs in the high-voltage DC power transmission line area by a protecting device. The high-voltage DC power transmission line single-end protecting method has advantages of high identification rate for line faults, more accurate and reliable protection action, and higher capability of ensuring safe and stable operation of the power transmission line.

The invention provides a detection method of generic drugs pretending original drugs. The detection method comprises the following five steps: 1, acquiring Raman spectrum data of a sample to be detected; 2, calculating an HQI value of the sample to be detected according to standard Raman spectrum data of the original drugs and the Raman spectrum data of the sample to be detected, and carrying out first judgment on the sample to be detected according to the HQI value; 3, selecting characteristic peaks of the sample to be detected and characteristic peaks of the original drugs; 4, calculating a ratio t of the quantity of the characteristic peaks of the sample to be detected to the quantity of the characteristic peaks of the original drugs, and carrying out second judgment on the sample to be detected according to the t; and 5, calculating a ratio s of the quantity of matched characteristic peaks to the quantity of the characteristic peaks of the original drugs, and carrying out third judgment on the sample to be detected according to the s. The detection method provided by the technical scheme is high in accuracy and strong in reasonability; and the false positive rate of the judgment is remarkably reduced and the requirements of on-site rapid detection can be met.

The invention relates to an online testing method and apparatus for a laser shock peening effect. The method is characterized in that a high power laser beam forms a plasma shock wave on a shock peening metal workpiece, sound wave signals and plasma plume image information of the shock wave are measured in real time, and the wave signals and the plasma plume image information are used as characteristic parameters for on-line assessment of laser shock peening of the metal workpiece. A laser, a laser beam, a metal workpiece, a water restraint layer, an absorption layer and a six-shaft workbench compose a laser shock unit which can realize laser shock peening of the metal workpiece. A control system controls the laser shock unit, an image processing platform and an integrated data processing system and feeds back information based on the integrated data processing system; if an electrical signal and a plasma plum image are identical with a standard signal, next pulse of laser shock is carried out, and if a great difference occurs, the integrated data processing system records the position of such a point and re-processing is carried out based on recorded situations after processing of the whole metal workpiece is finished.

The invention provides a method for distinguishing the shutting of a 800 kV extra-high voltage direct-current valve group. A direct-current power transmission system is composed of two poles and each pole is composed of two 400 kV valve groups; each valve group corresponds to a relevant converter transformer; a stable control device is used for collecting three-phase current and three-phase voltage of the converter transformer; when the following three conditions are met, a valve group shutting or emergent stopping signal sent by a direct-current pole control system is received and the valve group is confirmed to have faults and the valve group is shut by time delay; and the three conditions are as follows: (1) a mutational volume starting of changes of current or power of the converter transformer is carried out; (2) after the mutational volume starting, a current real-time power Pdck of the converter transformer is less than 'a stopping threshold constant value, namely a stopping power constant value of the direct-current valve group' Pdcstop; after a direct-current system has the pole shutting, the Pdck (Pdcstop) is judged; and (3) before the mutational volume starting, a power Pdc_ of the converter transformer at a previous moment is more than a pre-set operation threshold constant value, namely 'a run power constant value of the direct-current valve group' Pdcrun.

A method for constructing a CAM (computer-aided manufacturing) system for punching for automobile girders is characterized by including selecting the types of used numerical-control punching production lines for the automobile girders; creating projects corresponding to the types of the numerical-control punching production lines for the automobile girders, building mathematical models of algorithms, and building generic modules; determining the types of the projects as Activex DII and compiling the types of the projects into types of dynamic linking libraries; writing and compiling interface programs connected with the dynamic linking libraries by VBA (visual basic for application); writing scripts for the various types of numerical-control punching production lines, and creating a CAM icon menu file and icons corresponding to various items; packaging various documents such as the CAM icon menu file, the interface programs written by the VBA, each class-generation DLL (dynamic linking library) compiled by VB (visual basic), development interfaces provided in the form of VB types, windows, the modules, the projects, an encryption method and instructions in a SETUP to form installation programs of the various types of numerical-control punching production lines for the automobile girders; and adding a CAM menu into a menu self-defining term in a CAD (computer-aided design).

The invention relates to an electric system steel-cored aluminum strand failure analysis method. The method comprises the steps that (1) technical data are collected; (2) examination and analysis tests are carried out, wherein the examination and analysis tests comprise macroscopic examination, component analysis, electrochemical corrosion analysis, electron microscopy and energy spectrum analysis, a specific resistance test and a tensile test; (3) wire failure reasons are analyzed by synthesizing the results of the tests, a conclusion is obtained, and a failure analysis result is provided. The electric system steel-cored aluminum strand failure analysis method is used for guiding supervision and inspection work, the failure type of a wire can be rapidly judged when the wire is invalid, and accident reasons are found out.

The invention relates to a coal and rock identification method based on laser scanning. The reflectivity of the coal surface to scanning laser beams from different distances and the reflectivity of the rock surface to scanning laser beams from different distances are measured through the laser scanning technology respectively, and the three-dimensional morphology information of the surfaces of a coal sample and a rock sample scanned by lasers is acquired in real time; the changing relation between the distance and the reflectivity of laser scanning of standard coal and standard rock is established, and reflectivity correction coefficients corresponding to different surface three-dimensional morphologies of the standard coal and the standard rock from different distances are determined; a characteristic database for the distance and reflectivity of laser scanning corresponding to the standard coal and the standard rock with different surface three-dimensional morphologies is established, while on-site coal and rock objects are identified, the actually measured characteristic values of the surfaces of the coal and rock objects are compared with the coal and rock standard characteristic data measured earlier, and thus the coal and rock type can be identified fast in real time. The method has the advantages of being simple, high in calculation speed, automation degree and accuracy rate and suitable for identifying the coal and rock types in complex environments.

The invention discloses a nuclear power pipeline defect detection method based on a multi-scale pyramid structure. The method comprises the following steps: preprocessing a radiographic inspection negative image; constructing a full convolutional neural network, wherein the full convolutional neural network is of a feature pyramid structure, and the feature pyramid structure is divided into two parts from bottom to top and from top to bottom; selecting an Adam optimizer to perform gradient updating on the constructed full convolutional neural network, and then using a Focal Loss function to train the full convolutional neural network after gradient updating; and testing the trained full convolutional neural network, outputting a probability graph by the full convolutional neural network, and performing threshold binarization processing on the probability graph to obtain a binarized image of the defect area as a nuclear power pipeline defect detection result. The invention is applied toassisting film evaluation personnel in industrial production to quickly detect defect areas for classification and evaluation, the defect areas are quickly judged by analyzing digitally scanned flawdetection negative film images, the detection efficiency is improved, and the production time cost is saved.

The invention relates to a device for detecting gears. The device comprises a rack, a transmission shaft, standard gears, a gear seat, changeable bushes, a stud and a dial indicator. The device has the following advantages: the structure is simple and reasonable and the manufacturing cost is low; by applying the gear mesh principle, whether the gears have burrs and the specific positions of the burrs can be rapidly and accurately discriminated by observing jump of the pointer of the dial indicator, so the device has high use efficiency, is convenient to operate and is suitable for comprehensively detecting the gears produced in batches; the noises generated by the practical working conditions of the gears can be simulated by adjusting the stud and a compression screw to know the possible problems in advance; and detection of such toothed parts with different moduli as straight teeth, helical teeth and the like can be realized by changing the changeable bushes and the standard gears, so the device has strong universality.

The invention discloses primer pairs for simultaneously detecting classical strains and variant strains of porcine reproductive and respiratory syndrome virus, which have nucleotide sequences shown in SEQ ID NO:1, SEQ ID NO:2, SEQ ID NO:3 and SEQ ID NO:4. The invention also discloses a kit which comprises the primer pairs for simultaneously detecting the classical strains and the variant strains of the porcine reproductive and respiratory syndrome virus, and a method for simultaneously detecting the classical strains and the variant strains of the porcine reproductive and respiratory syndrome virus by adopting the kit. The primers in the kit for detecting the porcine reproductive and respiratory syndrome virus have the advantages of higher specificity, sensitivity and stability, and capacity of providing a rapid, sensitive and specific method for detecting the porcine reproductive and respiratory syndrome virus.

A transfer press machine which can be easily handled for precise and prompt interference checks. The transfer press machine is provided with an interference check device including data component storage means for storing press side data components and transfer side data components, as turned three-dimensional data, in such a state that they are expanded and arranged in a virtual space with the same relative position relation as that of the case in a real space, virtual press action control means for causing the press side data components to perform the virtual press actions in the virtual space in accordance with press motions, virtual transfer action control means for causing the transfer side data components to perform the virtual transfer actions in the virtual space in accordance with transfer motions, virtual synchronous timing information generating / outputting means for generating / outputting virtual synchronous timing information, and virtual interference occurrence discriminating means for discriminating whether or not an interference occurs between the press side data components and the transfer side data components in the procedure of the virtual transfer press cycle.

Disclosed is a method for judging direct current transmission system direct current pole interlock. A stabilizing device is provided with a single time monopole interlock, double pole interlock, double poles interlock restart, successive interlock and successive interlock restart; the judging method comprises steps of: the stabilizing device setting double pole interlock time Tset1 and successive interlock time Tset2 for judging the single pole, double pole interlock or successive interlock, including restart; single time monopole interlock: taking one pole interlock accident in the Tset1 time; double poles interlock: taking two poles interlock accidents in Tset1 time; successive interlock: taking two poles interlock accidents out of Tset1 time and in Tset2 time.

The invention provides a pedestrian mask wearing real-time detection method based on deep learning. The pedestrian mask wearing real-time detection method comprises the following steps: S1, establishing a robust backbone network; S2, carrying out the multi-scale training; S3, performing model compression; S4, performing model optimization. According to the method provided by the invention, more labor overhead cost, and calculation cost and time overhead cost of the small hardware storage device are considered. Whether a pedestrian wears the mask or not can be judged more quickly, and good engineering practicability is achieved.

The invention provides an emergency dispatching plan generation method oriented towards a water pollution emergent event. An emergency dispatching plan is generated automatically through rapid diagnosis and recognition according to early-stage information of the water pollution emergent event; the water quality and water amount are simulated through a one-dimensional hydrodynamic model, and whole-process simulation computation of the dispatching plan is carried out by combination with reservoir dispatching calculation; modeling is carried out through a digital terrain model and a remote-sensing image, and three-dimensional simulation is carried out on the dispatching plan. By means of the emergency dispatching plan generation method, fast distinguishing, fast simulation and scenarios generation of the water pollution emergent event can be achieved, and the water pollution emergent event can be handled and managed conveniently and emergently.

The invention discloses an EST-SSR labeled primer combination which comprises 35 pairs of EST-SSR available primers. A screening method of the EST-SSR labeled primer combination includes the steps of SSR locus screening in a soybean EST sequence, primer design, PCR amplification, product capillary electrophoresis detection and label screening. The EST-SSR labeled primer combination is applied to genetic diversity of vegetable use soybeans, grain use soybeans and wild soybeans; genetic diversity and clustering of the vegetable use soybeans, the grain use soybeans and the wild soybeans are analyzed; germplasm of the vegetable use soybeans, the grain use soybeans and the wild soybeans is quickly and accurately analyzed and distinguished easily, the genetic relationship of the vegetable use soybeans, the grain use soybeans and the wild soybeans is analyzed, and a foundation is laid for directional breeding of the species.

The invention discloses an emergency dispatching circumstance generation method for water pollution emergency. The technology comprises the steps of carrying out preliminary information identification on the water pollution emergency, wherein the information comprises the occurrence time, occurrence place, belonging reach, pollutant type, amount of in-river pollutant and development state of the water pollution emergency; rapidly giving the main characteristics of the pollutant according to the preliminary information, wherein the main characteristics comprise whether the pollutant has toxin, whether the pollutant is dissolved in water, the specific gravity of the pollutant, main harm and conventional measures; automatically matching the emergency scheduling measure; and carrying out analog simulation on the scheme. According to the method, the emergency dispatching circumstance is automatically generated by rapid diagnosis and recognition according to the preliminary information of the water pollution emergency, and the measure is rapidly given according to the comparison and selection of a scheme library, so that the rapid judgment, scheme matching and circumstance generation of the water pollution emergency can be realized, and emergency disposal and management of the water pollution emergency can be conveniently carried out.

The invention relates to a method for discriminating requirements of an ultra-high voltage (UHV) line steady-state overvoltage device, which is based on the lossless transmission line theory. According to the lossless transmission line theory, the voltage relationship and the current relationship between any two points on a line can be analyzed as long as distribution parameters of wires are known. By using the characteristic, the method analyzes the voltage distribution situations when a power system with a UHV idle line operates, comprehensively considers the parameters, the lengths and the high-resistance configurations of UHV wires, and judges whether steady-state overvoltage problems occur in the UHV line and whether a steady-state overvoltage device needs to be configured. Traditional discriminating methods completely use power system simulation software to conduct large amounts of verbose simulations, however, the discriminating method of the invention overcomes the problems, has the characteristics of good adaptability, simple operation and less calculation amounts, and can be used for the quick discrimination of the requirements of a UHV steady-state overvoltage device.

The invention discloses a direct current system line fault positioning method. The method includes steps: firstly, deducing a voltage and current transient characteristic equation of lines with different fault types based on a VSC direct current system, and calculating a current differential initial value during the fault; performing fault discrimination by employing catastrophes of a positive electrode and a negative electrode in different fault types, and determining the fault type and the fault electrode after occurrence of the fault; then calculating a post-fault current and voltage characteristic equation, and calculating the transition resistance of a fault circuit; and finally deducing a fault positioning value by employing the current differential initial value during the fault, and realizing accuracy positioning of the line faults. According to the method, the fault positioning precision is high for a direct current system with high transition resistance and long distance, and the method can be applied to single-end radiation type direct current distribution networks, marine direct current distribution systems, and direct current systems whose transmission power is disperse, small, and random.

The invention discloses a device and a method for quickly pre-judging soil type with a panorama girdle photograph process. A brace is perpendicularly fixed on a base; one end hole of each of two cross beams is fixed on the brace; a connecting rod of a girdle camera passes through the other end hole of each of the two cross beams; the lower end is provided with the panorama girdle camera and a miniature laser range finder probe; the probe is connected with a main body of a laser range finder; the main body of the laser range finder and a transmission system are respectively arranged on an upper cross beam; a gear in the transmission system and a side rack of the connecting rod of the girdle camera are meshed in a central hole of the base to move; and the camera is connected with a computer. The device is moved above a soil cave of the soil to be detected, a stepping motor vertically moves the camera down to the soil cave at a position to be detected; and at each time of moving up by 5cm, the computer controls the camera for photograph. A linear method is utilized for unfolding a panorama girdle image as a rectangle image, and the similarity between the unfolded image and the standard soil type section image is measured with the relevance of image texture features, so as to quickly pre-judge soil type.

The invention relates to the technical field of road traffic safety, and aims to provide a video-based abnormal event detection method and device applied to an expressway, and the method comprises thesteps: obtaining a video image; performing frame difference operation on the acquired video image, and dividing a motion area of the video image; detecting each divided motion area, and identifying whether an object is a vehicle or a pedestrian; according to the identified object object, identifying that the abnormal event is retrograde motion or congestion or throwing or pedestrian intrusion. The problems that an existing abnormal event detection system based on an expressway is difficult to accurately identify an abnormal event, and the identification speed of the abnormal event is low aresolved. The method has the advantages that abnormal events such as retrograde motion, congestion, throwing and pedestrian intrusion can be accurately and quickly judged, the recognition result is transmitted to the background, analysis based on the background is not needed, and the requirement for a transmission network is greatly reduced.

The invention belongs to the field of food science and technology and particularly relates to a judgment method for the flavor quality of concentrated apple juice and application thereof.In order to overcome the defects that currently, in the process that the flavor quality of concentrated apple juice is differentiated through artificial sensory evaluation, difference is large, stability is low, and data support is lacking, in the method, flavor substances having important influences on the flavor quality of concentrated apple juice are comprehensively analyzed, key substance composition influencing the flavor quality of concentrated apple juice is screened out, the method for distinguishing the flavor quality of concentrated apple juice is built by means of main component analysis and other mathematical statistics means, and raw materials stable in flavor quality are provided for production of cider, apple vinegar, apple vinegar drinks and the like.

The invention discloses a municipal road construction period traffic jam reason discrimination method, which comprises the following steps of 1 acquiring historical traffic data, and researching traffic characteristics of a traffic system in a city main road reconstruction construction period according to four factors of a road traffic system; 2, classifying common congestion reasons of the traffic system in the municipal road construction period, and establishing a traffic system congestion reason tree model in the municipal road construction period; 3, traffic characterization characteristic analysis being carried out on various congestion reasons in the congestion reason tree model; and 4, collecting traffic data of the congested traffic road section through traffic information collection equipment arranged around the road, calculating the traffic index and judging the cause of the congested traffic road section. The method solves problems that the reason of traffic congestion during the construction period is difficult to find, efficiency is low, and management measures are not high in pertinence and poor in effect, can be used for guiding the decision-making of the traffic congestion treatment measures during the construction period in the future, and improves efficiency and scientificity of selecting the traffic treatment measures.