218results about How to "Detection fit" patented technology

A system used for detecting operation parameter of centralized / distributed storage battery set on motor-driven vehicle is prepared as forming said system by using CAN bus to connect a numbers of detection module with each other, modularizing and localizing detection unit as well as using bus to transmit data to from a centralized / distributed detection mode. The detecting method utilizing said system is also disclosed.

The invention discloses a self-adapting random resonance weak signal detection method, which achieves the self-adapting detection of weak periodic signal through combining a matching random resonance and an imposed signal induced random resonance. According to the theory of random resonance, firstly, numerical simulation is processed to receive correspondence between the noise intensity and the frequency of the best matching random resonance of a nonlinear bistable system in a range of extremely low frequency and under the condition of small-signal; and a high-frequency weak signal encountered in a project can be processed by using the change of normalized scale. For the detection of a weak signal with extremely low message-to-noise ratio and large noise intensity, the heights of voltage barriers of the bistable system can be changed by using the induced random resonance, thereby helping a weak eigenfrequency signal to fulfill the transition between voltage barriers, so that the bistable system reaches the random resonance state, thereby achieving the self-adapting detection of the weak periodic signal.

Disclosed is a numerical control machine tool rotating shaft geometric error three-wire measurement method. High-accuracy calibration of space coordinates of a laser tracker base station can be rapidly finished by the aid of a cat eye and a rotatable cat eye bracket, the influence of a machine tool system error is eliminated by calibration accuracy, rotating movement of three fixed points of a single rotating shaft of a machine tool around an axial line is successively measured at four different measurement positions by the aid of one laser tracker, the cat eye and the rotatable cat eye bracket, real-time poses of the rotating shaft are calculated by the aid of continuous movement tracks of the three fixed points in a space, errors of the rotating shaft of the machine tool are identified, acquired information of the machine tool is rich as the real-time poses of the moving shaft are measured, an error identification algorithm is quite simple and applicable to rapid data processing and rapid compensation of the machine tool errors. The numerical control machine tool rotating shaft geometric error three-wire measurement method has the advantages of low cost, high accuracy, rapidness and simplicity in operation, rich measurement information and the like, and is suitable for accuracy detection in the field of numerical control machine tools.

The invention relates to a multi-parameter field automatic measuring and sorting system. The multi-parameter field automatic measuring and sorting system is provided with a conveyor belt for conveying a cylinder sleeve part to be measured, wherein one side of the conveyor belt is successively provided with an automatic feeding mechanism for automatically transporting each cylinder sleeve part to be measured on the conveyor belt, a first measuring station for carrying out high-precision measurement on a physical dimension and a form and position error of the cylinder sleeve part to be measured, a second measuring station for obtaining the outline information of the cylinder sleeve part as well as an automatic separation mechanism for automatically carrying out classifying selection on the cylinder sleeve parts with different standards according to the measuring results along the length direction of the conveyor belt. The distance between the cylinder sleeve parts on the conveyor belt is the setting distance d, the distance d guarantees that the first measuring station and the second measuring station can carry out the next measurement simultaneously. The multi-parameter field automatic measuring and sorting system provided by the invention has the characteristics of high precision and high efficiency, a workpiece body with the narrow space volume is measured, the high precision measurement is easy to realize, each parameter automatically generate a data report, and the detection data is automatically saved.

This invention uses browser to check Troy virus wed belonging to computer safety field, which realizes rapid and accurate checking on web Troy web through system process adjusting and memory change. This invention basic principle must generate one new process browser when checking hidden Troy virus through rapid checking on the web through system monitoring to solve the virus web to provide user with safe net environment.

The invention discloses an RT-LAMP (loop-mediated isothermal amplification) rapid detection kit for cucumber green mottle mosaic virus (CGMMV) and a detection method. The method comprises the steps of extracting plant viruses RNA, detecting an RT-LAMP reaction and electrophoresis detection or fluorochrome, and determining whether a plant carries the viruses. An RT-LAMP primer is designed according to a coat protein gene conserved region of CGMMV, and an RT-LAMP technology is adopted to establish a detection technology which can rapidly and sensitively detect the cucurbitaceous plant CGMMV such as cucumbers, watermelons and calabashes with high specificity and an application method thereof in diagnosing disease. The detection method provided by the invention can utilize the rapid extraction RNA and conventional RNA extraction as an RNA template for an RT-LAMP experiment. The method is utilized to rapidly identify a CGMMV plant sample, the targeted quarantine inspection protective measure is adopted, and the loss caused by the disease is reduced.

The invention discloses a hyper-blocking fluorescence quantitative PCR method with high sensitivity for detecting rare mutation. The invention adopts specific primers and a probe technology and can rapidly detect gene point mutation in a blood sample. The method has the advantage that (1) the conventional ARMS primers are modified by LNA or mismatched bases are introduced into 3' tail 2th site totail 3th site so that the sensitivity of the mutation detection is not influenced and the specificity of the single base mutation based on the mutation specific primers is guaranteed, (2) the modifiedblocker probe completely complementary to the wild type gene is introduced so that the wild type background interference is further reduced with keeping the efficiency of the mutant amplification, (3) based on the high specificity modified blocker probe, the ARMS primers can detect different base mutation forms at the same site at the same time so that multiple sites in the same gene can be detected by only a few systems, (4) sensitivity is high and (5) a detection rate is fast.

The invention discloses a roadside parking space detection and information release system, which is composed of a roadside parking space detection unit, a roadside parking space information transmission network, a roadside parking space information server and a roadside parking space information release module. The roadside parking space detection unit achieves acquisition and transmission of parking space information. The roadside parking space information transmission network transmits the parking space information to the roadside parking space information server. The roadside parking space information server reads and processes the parking space information, so that the parking space information becomes information which can be invoked by the roadside parking space information release module. The roadside parking space information release module releases the parking space information to a driver through mobile phone software, and offers path navigation to a target parking space. The roadside parking space detection and information release system is simple and compact in structure, is convenient to install, detach and maintain, solves the problems that roadside parking space detection cannot be carried out and the like in the prior art, and achieves detection and information release of roadside parking spaces which are widely distributed, multiple in amount and far in place distance.

The invention discloses a traffic signal detection and identification method based on a cascaded network, and relates to the technical field of image processing and sign identification. The method comprises the following steps that S1) an original image is collected; S2) the original image is detected to obtain a candidate area which may include a traffic signal or lamp, the trained three-order cascaded network composed of a 12-net, 24-net and 48-net is used for detection in a detection process; and S3) the candidate area is identified, the candidate area without the traffic sign or lamp is eliminated, and concrete types of traffic signs and lamps are obtained. The traffic signs and lamps can be detected at the same time, and the problem, in a present traffic sign detection and identification technology, that missing detection is caused by influence of illumination on a color space, small difference between the traffic signal and the background environment and connection of multiple traffic signs can be solved.

The invention discloses a method and a measuring device thereof for measuring the granularity distribution of the particle in the discrete state, and the method and the measuring device thereof to the technical field of ultrasonic measurement. The invention aims at solving the technical problem of non contact measurement of the distribution of the particle granularity in the discrete state. The measuring device includes a computer which applies a complex wave number, a objective function, a distillation function and other calculation formulas to optimize the calculate the distribution of the particle granularity, a signal process circuit which is connected with the computer, a pulse wave launch / receive circuit which is connected with the signal process circuit, a broadband transducer which is connected with the pulse wave launch / receive circuit, and broadband transducer is arranged at the external side of a test plate. The measuring device is controlled by the computer, and the launch circuit sends out a pulse signal; a trigger transducer sends out the sound wave which is reflected by the wall of the test plate for a plurality of times and then is received by the transducer, and then the signal process circuit amplifies the signal, the high speed module coverts the signal and sends to the computer for processing. The invention is characterized in that the invention can completely realize the non contact measurement, and measure the high consistency and the two-phase flow of the high attenuation particle on line.

The invention discloses equipment for measuring gas particles in a pipeline by laser speckle. The equipment contains a laser source, an optical system, a gas pipeline to be detected, an image receiver and an image signal processing unit. The optical system comprises a first lens and a second lens. A laser beam emitted from the laser source passes through the first lens for beam expanding and irradiates on the gas particles in the area of the gas pipeline to be detected. An optical signal reflected from the area passes through the second lens, is then received by the image receiver and is finally transmitted to the image signal processing unit. Furthermore, the invention also discloses a relevant measuring method as follows: the image signal processing unit is used to carry out component identification on the gas particles to be detected by the utilization of a nanometer gas particle feature database; and simultaneously, according to the dynamic change of image speckle, motion parameters such as displacement, flow velocity, acceleration and the like of the gas particles are analyzed by the utilization of relevant features acquired by laser speckle statistics. The equipment has high data acquisition efficiency and accuracy. By mechanical design, the equipment is easy to install and maintain. The equipment can be applied in real-time online detection and measurement of various industrial gases.

The invention discloses an ELISA (Enzyme-Linked Immunosorbent Assay) antibody detection kit for distinguishing and diagnosing capripox field virus infection. The indirect ELISA antibody detection kit for distinguishing and diagnosing capripox field virus infection, disclosed by the invention, is internally provided with a coated antigen ELISA antibody detection board and an ELIAS secondary antibody, wherein the coated antigen is a mixture of a recombination capripox virus ORF95 protein and an ORF103 protein. The recombination proteins of ORF95 and ORF103, adopted by the invention, are convenient to prepare and purify in large quantities. The kit disclosed by the invention has a strong specificity, can effectively exclude the interference of the capripox attenuated-vaccine immunity, and specifically detects the capripox field virus infection.

The invention relates to an African swine fever fluorescent PCR (polymerase chain reaction) assay reagent, an African swine fever fluorescent PCR assay kit and application thereof, which belong to the field of bioengineering. With the p72 gene as a reference, a pair of specific PCR primers and a TaqMan fluorescent probe are designed and optimized. Moreover, the primers are designed with the full length of the p72 gene to amplify the p72 gene, and the PCR product is cloned into a pGEM-T vector. Standard curves are drawn with a positive plasmid as a standard product, and the assay range is 10 to 1.0*10<7> copies. In the whole process of assaying African swine fever by an African swine fever fluorescent PCR method disclosed by the invention, only 2.5 to 3 hours are taken from DNA extraction to the appearance of an assay result, manual operation is greatly reduced, and time is greatly shortened. Furthermore, a plurality of samples can be assayed each time, and particularly assay of a large batch of samples can be realized.

The invention provides a method for simultaneously detecting 13 kinds of steroid hormones in serum. The method includes the following steps: a to-be-tested serum sample is mixed with an internal standard solution, a detection liquid is obtained by liquid-liquid extraction, and detection is performed by ultra-high-performance liquid chromatography-tandem mass spectrometry; liquid chromatography conditions are that: a mobile phase A is a formic acid aqueous solution of 0.1%, and a mobile phase B is a formic acid methanol solution of 0.1%; mass spectrometry conditions are that: a positive ion mode employs a multi-reaction monitoring mass spectrometry scanning mode; and the 13 kinds of steroid hormones include pregnenolone, progesterone, 17-hydroxypregnenolone, 17[alpha]-hydroxyprogesterone, 11[alpha]-hydroxyprogesterone, 21-deoxycortisol, 11-deoxycorticosterone, corticosterone, cortisol, 11-deoxycortisol, cortisone, aldosterone, and estrone. The method simultaneously detects the 13 kindsof steroid hormones with the detection time of only 6 minutes, and is easy to operate and takes less time; the sensitivity is high, the accuracy is good, the specificity is strong, a detection range is wide, and an application prospect in medical and biochemical detection fields is broad.

The invention discloses a device and a method for detecting a trojan remote shell behavior. The device comprises a packet acquiring device, a data stream selecting and filtering device, a data stream character extracting device and a trojan shell behavior character detecting device. The detecting method comprises the following steps of firstly acquiring real-time network flow data of an internet access; then classifying data stream of the real-time network flow data, and filtering irrelevant protocol data stream; extracting an inlet and outlet packet load ratio, an inlet and outlet packet number ratio and a data stream answering interval in an answering and response process in each data stream; forming data stream characters extracted within certain time interval into a character vector, and inputting the character vector into a formed neural network model; finally calculating a result through the neural network model, judging whether the trojan remote shell behavior exists in the data stream or not, outputting the result, and feeding the detection result back to the data stream selecting and filtering device. The device and the method are applied to a large-scale network environment and can detect known and unknown trojan remote shell behaviors.

The invention provides a micropapilla detection system based on YOLOv5. The micropapilla detection system comprises a lung adenocarcinoma pathological image acquisition module, a detection model training module and a micropapilla detection module; a feature extraction module in the detection model training module adds a layer of feature extraction on the basis of a BottleneckCSP network structure to obtain a shallow feature map, so that the multiple of downsampling of the feature extraction module is reduced by half; the feature fusion module is used for down-sampling the shallow feature map and splicing the shallow feature map with the deep feature map, so that the features of the shallow feature map and the deep feature map are fused, and the small target detection capability of the network is enhanced; and the prediction module replaces the GIoU loss with the CIoU loss, optimizes the prediction frame, improves the regression speed and precision of the prediction frame, and is more suitable for the detection of micronipples.

The invention discloses a microwave detection method and microwave detection equipment for moisture contained in coal on mine conveyor belts, and belongs to the technical field of the detection of water content in the coal. The microwave detection method comprises the steps of: 1) determination of microwave frequency; 2) determination of the relation between the water content of the coal and the attenuation of microwave signals; 3) error correction; and 4) acquisition of the water content of the coal by fitting a relation curve between the attenuation of the microwave signals and the water content of the coal. The method can quickly detect the water content of the coal on the conveyor belts, is not susceptible to the external environment, and is suitable for detecting the moisture contained in the coal on the conveyor belts.

The invention relates to a testing agent for detecting ammonia nitrogen in water. The testing agent comprises A, B two packages, wherein the A is packaged by grinding and mixing sodium tartrate, natrium salicylicum, citric acid trisodium and nipride; the B is packaged by grinding and mixing sodium-hydroxide, lithium hydrate, citric acid trisodium, babysafe, symclosene and symclosene. When use the testing agent, adding a pack of A into sample water, adding a pack of B after placing 2 minutes, the water will display blue-green color if there's ammonia nitrogen in the water, and the darkness of the color is in proportion to the concentration of the ammonia nitrogen; placing 10 minutes, comparing it with the standard color matching card, color matching disc to read the concentration of the ammonia nitrogen in the water.

The invention discloses a field rapid detection strip for tobacco complex virus. Colloidal gold tomography detection test paper is fixed on an appropriate position of a PVC plate; a water diversion material is connected with the lower end of the colloidal gold tomography detection test paper to form a water absorption paper layer; the water absorption material is connected with the upper end of the colloidal gold tomography detection test paper; a colloidal gold antibody combo glass fiber film is arranged below the water diversion material to be spliced with the colloidal gold tomography detection test paper; the assembled PVC plate is longitudinally cut into test strips being 5-7mm in width by a cutting machine, and the test strips are installed in a plate casing, i.e. a sample pad. The invention further discloses a preparation method of the test strip. The invention can detect a sample with the weight of 0.1-0 .3g under an optimum temperature of 15-35 DEG C, and the sample is equivalent to about 3-5cm<2> of the area of a leaf; tobacco leaves are grinded in a plastic bag filled with buffer solution, then the test strips are immersed for 30 minutes and then the results are obtained; and the false positive rate is less than 1 percent. The invention has convenient use, is especially suitable for field rapid detection, and has higher reliability.

The invention relates to a one-step RT-PCR (Reverse Transcription Polymerase Chain Reaction) detection reagent kit for Cucumber green mottle mosaic virus and a detection method thereof. The reagent kit comprises the following various agents for a one-step RT-PRC reaction: an upstream primer of Cucumber green mottle mosaic virus, a downstream primer of Cucumber green mottle mosaic virus, a PCR Buffer, Mgc12, dNTPs, an RNA enzyme inhibitor, a reverse transcriptase, a DNA polymerase, positive control containing Cucumber green mottle mosaic virus and negative control containing no Cucumber green mottle mosaic virus and RNase-free ddH2O. The invention has the advantages of simple preparation method and convenient large-scale industrialized production, and the detection method has the advantages of simple and convenient operation, high sensitivity, strong specificity and good accuracy. The whole detection process is accomplished in a PCR tube and suitable for rapid detection of a batch of samples, thereby simplifying the operation procedure, reducing the detection time, avoiding the cross contamination, and improving the detection efficiency.

The invention relates to the technical field of spectra, in particular to a circulating tumor cell detection method based on a surface-enhanced Raman spectroscopic probe. The method includes the steps: building the surface-enhanced Raman spectroscopic probe taking luteinizing hormone-releasing hormone as a targeting molecule; using the surface-enhanced Raman spectroscopic probe for circulating tumor cell detection. The surface-enhanced Raman spectroscopic probe is rapider, more convenient and lower in cost when being used for circulating tumor cell detection, has enough specificity and flexibility for circulating tumor cell detection and can provide a feasible strategy for clinical practice.

The invention relates to a pretreatment method for quickly detecting residual quantity of various pesticides in tomato sauce. The method comprises the following steps: extracting, purifying, filtering and the like. The invention further relates to a method for quickly detecting the residual quantity of the various pesticides in the tomato sauce by using the pretreatment method and then using different instrument detecting methods.

The invention relates to the three-phase inverter output line voltage detection technology, concretely relating to a detection method of three-phase inverter output line voltage. A common switching mode optoelectronic coupler and a resistance dividing potential drop unit are employed to form a three-phase inverter output line voltage detection circuit to detect the three-phase inverter output line voltage. The three-phase inverter output line voltage detection circuit comprises the resistance dividing potential drop unit between output terminals of a three-phase inverter, the optoelectronic coupler and a filtering amplification circuit at a secondary edge of the optoelectronic coupler. The method in the invention is very suitable for detection of a PWM voltage waveform and has the advantages of photoelectric isolation, low cost, high response speed and capability of satisfying a requirement of three-phase inverter output line voltage detection.

The invention provides a chemical derivatization-ultra-high performance liquid chromatography-tandem mass spectrometry method for simultaneously detecting 18 steroid hormones in serum, which is characterized in that a novel derivatization reagent 3-pyridylmethoxylamine is adopted for derivatization and then ultra-high performance liquid chromatography-tandem mass spectrometry is used for detection. According to the method, only 10 minutes are needed for detecting 18 steroid hormones at the same time, the hydrophobicity index logP is greatly improved after derivatization, the peak shape and theseparation degree in a high performance liquid phase reversed phase chromatographic column are improved, and the ionization efficiency is better, so that the mass spectrum detection sensitivity is improved. The method has the characteristics of simplicity and convenience in operation, good accuracy, strong specificity, wide detection range and the like.

The invention discloses a trace copper ion visual rapid detection method. High sensitivity visual rapid detection of Cu<2+> is realized by using a rhodamine B spiro lactam derivative as a Cu<2+> identification probe and combining Fe3O4 magnetic nanoparticles. According to the invention, visual rapid detection of trace Cu<2+> is realized by utilizing the characteristics that the rhodamine B spiro lactam derivative modified on the magnetic nanoparticles can be specially combined with copper ions and changes color (from faint yellow to pink purple) and utilizing the enrichment of the magnetic nanoparticles. The trace copper ion visual rapid detection method has the characteristics of speediness, simplicity, high sensitivity, visualization, high specificity, low cost and the like, and can be used for visual rapid detection of trace copper ions in various water environment samples.

The present invention relates to the technical field of analytical chemistry, and discloses a method for detecting beta-receptor agonist residual quantity in animal derived food, the method is based on a GB / T22286-2008 detection method, and aims at the defects of a long enzymolysis step for sample extraction of the GB / T22286-2008 detection method, a new sample processing step without enzymolysis is provided, detection time and cost are improved significantly, and the method has high accuracy, sensitivity and precision, and is suitable for detection of large quantities of samples.

The invention provides a network worm detection method including the steps of receiving a network data packet and extracting detection characters relevant to network worm detection and used for proving the existence of network worms in the network data packet; taking the detection characters as an evidence in a naive confidence level model and computing the confidence level of the evidence; establishing knowledge in the naive confidence level model according to the detection characters and computing the confidence level of the knowledge; substituting the confidence level of the evidence and the confidence level of the knowledge into a confidence level computing formula of the naive confidence level model and computing the confidence level of the event with the conclusion of worm attack existed in the network. The naive confidence level model is inosculated with five species and eight kinds of network flows and behavior characteristics including short connection level, flux, data packet uniformity, threaded tree chart-pattern, packet number increase, and the like, thereby the invention can earlier find worms and improve the accuracy of detection; in addition, the invention has favorable real-time and practicability and is suitable for detecting unknown worms of a large-scale high-speed network and the mutation thereof.

The invention discloses a sample platform of a scanning electronic microscope and the scanning electronic microscope. The sample platform of the scanning electronic microscope comprises an outer barrel and a jack platform, wherein the jack platform is arranged in and connected with the outer barrel and is provided with a jack for a micro-cutter to insert; and the internal diameter of the jack corresponds to the external diameter of a handle part of the micro-cutter. The sample platform of the scanning electronic microscope used in the scanning electronic microscope comprises the outer barrel and the jack platform arranged in the outer barrel, and the outer barrel has a certain height and the jack platform is provided with the jack, so that the micro-cutter can be directly and vertically inserted into the jack to detect the scanning electronic microscope, operation is more convenient, and conditions of the micro-cutter, such as abrasion, cracks and the like can be observed without damaging the micro-cutter. Therefore, the sample platform of the scanning electronic microscope is very suitable for detecting the micro-cutter and has good detection effect.

The invention relates to a detection method for simultaneously measuring OXC in human plasma and metabolite MHD and MHD-G, and belongs to the technical field of biological detection. An experiment is carried out by taking nitrazepam as an internal standard, and can simultaneously detect the plasma concentrations of the three compounds by adopting high performance liquid chromatography-tandem mass spectrometry after pretreatment through precipitation protein. The detection method is short in time, high in specificity and sensitivity, and convenient in operation, and is successfully applied to the analysis and research of oxcarbazepine in the human plasma and the metabolite thereof.

The invention relates to a method for detecting residual disinfecting Cetyltrimethylammonium Chloride (CTAC) used in the production process of sodium hyaluronate. The method comprises the following steps: preparing a CTAC standard solution to structure a linear regression equation; preparing a sample solution, using an improved bismuth potassium iodide test solution for developing and measuring the absorbency value; and calculating the content of the CTAC with the linear regression equation. The structuring method of the linear regression equation is as follows: after using the improved bismuth potassium iodide test solution for developing of the prepared 2 Mug / ml, 4 Mug / ml, 8 Mug / ml, 10 Mug / ml and 20 Mug / ml standard solutions, measuring the absorbency under 290nm. By adopting the method to detect the content of the CTAC, the shortcoming that the content and the residue of the CTAC serving as a disinfectant or a reaction agent can not be monitored at present can be overcome, the detection time is greatly shortened, and the detection cost is lowered. The method provided by the invention is particularly suitable for detecting CTAC in labs.