92results about How to "Fast identification" patented technology

The invention relates to a method and a device for acquiring number of multiple targets of a vehicle-mounted millimeter wave radar system. The method and the device belong to the field of vehicle-mounted radars, and are used for solving the problems of inaccurate target detection and missing detection of targets in vehicle-mounted millimeter wave radar multi-target detection. The technical key point of the method comprises the steps of: transmitting periodic FMCW and CW combined waveforms; receiving echo signals, and performing fast Fourier transform on the received echo signals; adopting a frequency clustering algorithm, solving a Doppler frequency matrix of the CW-waveform echo signals, and calculating a relative velocity matrix; and adopting a frequency agglomeration algorithm in FMCW up-down frequency sweeping, acquiring frequency values of up-down frequency sweeping, and calculating a velocity matrix and a distance matrix of targets. The method and the device have the effect that target detection in vehicle-mounted millimeter wave radar multi-target detection is more accurate.

A method of identifying a plurality of RFID tags in an RFID reader includes generating a Query command to transmit the Query command to an RFID tag in a ready state, receiving an error detection code from the RFID tag that received the Query command, generating an acknowledgement (ACK) command to transmit the acknowledgement (ACK) command to the RFID tag that transmitted the error detection code when the error detection code is received without a collision, and receiving tag information including a protocol control (PC) and an electronic product code (EPC) of the RFID tag that transmitted the error detection code. It is possible to improve tag identification speed using an error detection code, such as a cyclic redundancy check (CRC)-16 code, which has uniformly-random characteristics like random number with 16 bits (RN 16), instead of RN 16 used in a conventional EPCglobal Class1 Generation2 standard.

The present invention provides a multi-target detection method of a vehicle millimeter wave radar system, belonging to the field of the vehicle radar. The problems of inaccurate target detection and target leak detection in the vehicle millimeter wave radar multi-target detection are solved. The technical points of the method comprises: emitting the periodic combination waveform of FMCW and CW; receiving echo signals, and performing fast Fourier transform of received echo signals; obtaining the Doppler frequency matrix of CW waveform echo signals and calculating a relative velocity matrix through adoption of a frequency clustering algorithm; obtaining the frequency value of sweeping frequency up and down and calculating the velocity matrix and the distance matrix of the target through adoption of the frequency clustering algorithm in the process of sweeping frequency of FMCW up and down. According to the invention, the target detection is more accurate in a vehicle millimeter wave radar multi-target detection.

The present invention provides a multiple target detection device of a vehicle millimeter-wave radar system, belonging to the field of the vehicle radar. The problems of inaccurate target detection and target leak detection in the vehicle millimeter wave radar multi-target detection are solved. The device comprises: a combination waveform emission unit configured to emit periodic combination waveform of FMCW and CW; a relative velocity matrix calculation unit configured to obtain the Doppler frequency matrix of a CW waveform echo signal and calculate a relative velocity matrix through adoption of a frequency clustering algorithm; a calculation unit configured to obtain a frequency value of sweeping frequency up and down and calculate the velocity matrix and the distance matrix of a target through adoption of the frequency clustering algorithm in the process of sweeping frequency of the FMCW up and down. According to the invention, the target detection is more accurate in a vehicle millimeter wave radar multi-target detection.

The invention discloses a white spirit appraising and source-tracing method based on infrared spectroscopy. The method comprises specific steps as follows: an infrared spectrometer is used for collecting infrared spectrums of a true spirit sample and an adulterated spirit sample ferreted by the police, and true-spirit infrared spectrum library and adulterated-spirit infrared spectrum library are established respectively; a least squares support vector machine is used for establishing a hierarchical classification and appraisal model for the established true-spirit infrared spectrum library and establishing an adulterated spirit den source-tracing model for the established adulterated-spirit infrared spectrum library respectively; and the infrared spectrum of to-be-detected white spirit is collected, classified and appraised with the established hierarchical classification and appraisal model and the adulterated spirit den source-tracing model, and appraising and source-tracing of the to-be-tested white spirit are achieved through comprehensive analysis of a result. The white spirit appraising and source-tracing method based on infrared spectroscopy has the advantages that the appraising speed is high, and the appraising accuracy is high; and classification and appraisal models of the true spirit library and the adulterated spirit library are combined, and the analysis result is more detailed.

The invention discloses universal primers for identifying bacillus. The universal primers comprise a forward degenerate primer composed of a nucleotide sequence shown as SEQID NO:1 and a reverse degenerate primer composed of a nucleotide sequence shown as SEQID NO:2. The invention also discloses a method for classifying and identifying bacillus, which comprises the following steps: utilizing the universal primers to perform PCR (Polymerase Chain Reaction) amplification; sequencing the PCR amplification product; utilizing sequence comparison software to perform sequence comparison in a Genbank data base; and acquiring the variety of a known strain having the highest sequence similarity, namely the variety of the strain. All varieties of bacillus can be classified by the universal primers, and the classification result is accurate and reliable; and the universal primers can be used for classifying bacillus on a variety level and can be also used for classifying bacillus on a subvariety level. Besides, the classification and identification method is simple and has a high identification speed.

The invention belongs to a white spirit analysis method and discloses a method for quantitatively analyzing components in white spirit by utilizing an infrared spectrum and combining with data processing, aiming at solving the defects in a conventional white spirit analysis method that a sample need to be pretreated before test, the measurement time is long, rapid field detection cannot be performed and the test price is high. The method comprises the following steps: selecting an instrument Nicolet Nexus 670 and an attenuated total reflection accessory; selecting Agilent 7890-5975c gas chromatograph-mass spectrometer; setting parameters of an infrared spectrometer; detecting the infrared spectrum of the sample; preparing standard working curve solutions of different concentrations to obtain multiple groups of working curves; measuring the chromatograph of the sample; solving the content of each substance by utilizing the working curves, and recording the substance content information serving as the characteristic as C=[c1, c2,...cn]; and comparing the detection result to identify the white spirit. The method has the advantages that the identification accuracy rate is high; the identification speed is high; the fake liquor dens can be traced, and manpower and material resources of supervision departments are saved.

A receiver comprising a processor having an input to receive a sequence of transmission frames conforming to a transmission protocol to represent payload data, a memory arranged to store and to provide to the processor a transmission protocol, a code provider arranged to provide to the processor one or more predetermined codes for association in a predetermined distributed manner within a group of transmission frames of a transmission sequence to represent one or more particular positions in the group of transmission frames, and wherein the processor is arranged to compile at least a portion of one or more distributed codes from a group of transmission frames of a transmission sequence received at the input using the predetermined distributed manner of the one or more predetermined codes received from the code provider, and to compare one or more compiled portions of one or more codes with the one or more predetermined codes received from the code provider to determine one or more particular positions in the group of transmission frames.

The invention provides a method for identifying Pingli fiveleaf gynostemma herb through near infrared spectroscopy, which comprises the following steps: (A) establishing a near infrared spectroscopy identifying model of Pingli fiveleaf gynostemma herb: (A-1) selecting the spectral range of 4,000-12,500cm<-1>, and scanning the near infrared spectrogram of the Pingli fiveleaf gynostemma herb; (A-2) pretreating the data of the spectral range of 4,000-9,500cm<-1>; (A-3) extracting the main components; and (A-4) establishing an artificial neutral network model: determining the structure of the neutral network by an artificial neutral network algorithm according to the characteristics of the input and output data, and training the neutral network by use of the training data; and establishing a BP artificial neutral network model of input layer nodes 10-, hidden layer nodes 5- and output layer nodes 2 by use of the MATLAB software; and (B) identifying the unknown sample: scanning the near infrared spectrogram of the unknown sample under the same conditions, selecting the number of main components, judging the authenticity of the unknown sample according to the trained neutral network model, and representing the output nodes with binary codes respectively, wherein 10 represents Pingli fiveleaf gynostemma herb, and 01 represents non-Pingli fiveleaf gynostemma herb.

The invention belongs to the field of molecular biology DNA marker technique and application. The invention discloses a method for analyzing genetic diversity of Amomum tsao-ko by using inter simple sequence repeat (ISSR) reaction system. The ISSR reaction system comprises (per 25 muL) Mg<2+>-free 10*PCR buffer 3.0 muL, Taq DNA polymerase 1.5 U, Mg<2+> 1.5 mmol / L, dNTP 0.25 mmol / L, primers 0.3 mumol / , and template DNA 50 ng. The reaction mixture is amplified by the following procedures: pre-degeneration at 95 DEG C for 5 min, degeneration at 95 DEG for 1 min, annealing at 50-58 DEG C for 1 min, extension at 72 DEG C for 1 min, after 35 cycles, extension at 72 DEG C for 10 min, and storage at 4 DEG C. The method of the invention provides technical guide and theoretical support for Amomum tsao-ko resource identification, genetic diversity analysis and other scientific researches.

The invention discloses a database-based cultural relic identification method. The method comprises the steps of firstly, classifying authentic works of cultural relics, collecting characterization indexes of the authentic works of the cultural relics, forming storage codes of the cultural relics according to the characterization indexes of the cultural relics, and establishing a code database of the authentic works of the cultural relics; and secondly, extracting the characterization indexes from the cultural relics needed to be identified, inputting the characterization indexes to the code database, comparing the characterization indexes with the storage codes stored in the code database, and judging related information of the to-be-identified cultural relics according to the coincidence degree of the characterization indexes. Compared with an existing method for performing identification by depending on personal experience of an identifier, the database-based identification method is high in identification speed and has the huge advantage in accuracy and reliability compared with the judgment performed only according to the personal experience of the identifier.

The invention relates to primers for molecular detection of nontoxic genes of Magnaporthe grisea and a use method thereof, is used for rapid molecular detection of nontoxic genes Avrpik and Avrpizt of Magnaporthe grisea, and belongs to the fields of crop disease control and breeding for disease resistance. According to the invention, two pairs of primers Avrpik-F / R and Avrpizt-F / R are designed, and used for respectively detecting the nontoxic genes Avrpik and Avrpizt of Magnaporthe grisea, wherein the lengths of the specifically amplified DNA (Deoxyribonucleic Acid) fragments are 184 bp and 153 bp respectively. The primers are suitable to be used for analyzing nontoxic gene composition of pure Magnaporthe grisea culture and Magnaporthe grisea colony from disease position.

The invention relates to an odor recognition method and device based on an electronic nose and an electronic nose system. The odor recognition method based on the electronic nose comprises the following steps: obtaining detection data of a plurality of odor samples collected by the electronic nose system; decomposing the detection data of each odor sample, so as to obtain an adsorption mass matrixof each odor sample, an adsorption amount scaling matrix of odor molecules of each odor sample on each sensor in the electronic nose system and an odor molecule characteristic matrix; constructing anabstract odor factor diagram of each odor sample separately according to the adsorption mass matrix, adsorption amount scaling matrix and odor molecule characteristic matrix of each odor sample; calculating similarity between abstract odor factor diagrams of two odor samples; and recognizing whether two odor samples are the same odor sample or not according to the similarity between abstract odorfactor diagrams of two odor samples. The odor recognition method based on the electronic nose has the advantages of simple pretreatment, short detection period and low detection cost, and can realizehigh-accuracy identification of different odor samples with high similarity and complexity.

The invention discloses a method for rapidly authenticating green tide algae enteromorpha. The method fulfills the aim of rapidly authenticating enteromorpha by obtaining a ribosome RNA transcription interval spacer sequence ITS and 5s ribosome RNA serial repeat sequence interval spacer sequence 5SS by sample DNA extraction and PCR amplification by utilizing nuclear acid hybridization technology and using two DNA double-chain probes, pointing a PCR product on a nylon membrane with positive chargers after performing modification treatment by adopting the nuclear acid hybridization technology, and hybridizing the PCR product with a specific probe to develop, wherein the sample of which the ITS and the 5SS have positive signals are the enteromorpha (Ulva prolifera). The method can authenticate in simple and crude in experiment settings in the open and has high authentication speed.

The invention discloses an early evaluation method for the salt tolerance of the willow coastal mud flat. The method comprises the following steps of: taking a one-year old twig from the limb; diluting sea water into solutions with different mass concentrations of salt content; pouring the solutions with different concentrations into a black plastic water tank respectively; making a cottage plate; inserting the twig into the cottage plate; and culturing the water tank in an illumination culture box. The method disclosed by the invention is easy to master and convenient and quick and basicallynot limited by external environment, and can be implemented all year round; the evaluation speed is high, and generally the evaluation result can be obtained in one week; and moreover, the method requires few experimental materials, has small error and high efficiency, and is widely applicable.

The invention discloses a PCR (polymerase chain reaction) method and kit for identifying spina date seeds and counterfeits thereof on the basis of ITS sequence site. The invention provides primers for identifying spina date seeds, particularly a primer pair capable of amplifying amplification products of nucleotide disclosed as Sequence 1 in the sequence table and nucleotide disclosed as Sequence 2 in the sequence table. The experiment proves that screening is performed on the basis of the nuclear gene ITS sequence of the original plant to obtain the site specific primers for identifying the spina date seeds and counterfeits thereof, and the PCR reaction system and conditions are regulated to establish a site-specific PCR process. The site-specific primer PCR is simple to operate, and has the advantages of low cost, favorable repetitiveness, single identification strip, low sample consumption and the like. The specific primer PCR can greatly lower the false positive rate of PCR and ensure the identification accuracy.

The invention provides a nucleic acid aptamer for detecting clenbuterol hydrochloride. The nucleic acid aptamer is selected from one of following nucleotide sequences shown in SEQ ID NO.1; the nucleicacid aptamers with same lengths are cut from both ends of the nucleotide sequence shown in SEQ ID NO.1, and the cutting length is 1 to 11bp; the nucleic acid aptamers with same cutting lengths of 1 to 11bp at the two ends respectively have the corresponding nucleotide sequences shown in SEQ ID NO.12 to SEQ ID NO.2. The invention also provides a screening method and application of the nucleic acidaptamer. The nucleic acid aptamer has the advantages that the specificity is strong, and the nucleic acid aptamer does not generate crossing reaction with clenbuterol hydrochloride analogues; the affinity is high, and the affinity constant is (42.17+ / -8.97) nM; the sensitivity is high; the minimum detection limit of clenbuterol hydrochloride is 1.2ng / mL.

The invention relates to a primer probe set used for detecting coxsackie viruses A6 type / A10 type / A16 type / enterovirus 71-type / enterovirus universal type through multiple PCR. The invention also provides a kit used for detecting coxsackie viruses A6 type / A10 type / A16 type / enterovirus 71-type / enterovirus universal type through multiple quantitative fluorescence PCR. The kit comprises the primer probe set. The above technical scheme provides a complete solution scheme for rapidly screening coxsackie viruses A6 type / A10 type / A16 type / enterovirus 71-type / enterovirus universal type in food, can increase emergent processing for hand-foot-and-mouth disease and comprehensive control capability, provides the necessary technical guarantee for reducing large-scope spreading of hand-foot-and-mouth disease in population, and eliminates the social influence and economic loss due to outbreak of infectious diseases.

The invention discloses a method and a special primer set for identifying facticity of to-be-tested variety belonging to CCRI 63. The method provided by the invention comprises the following steps: respectively carrying out PCR (Polymerase Chain Reaction) amplification by use of CIR62, CS62, NAU1070, NAU1102, NAU1186, NAU2026, NAU2173, NAU2277, NAU2343, NAU1196, NAU1085, NAU1255, NAU1369, NAU1233, NAU1269, NAU2272, NAU1187, NAU1375, CS51, NAU1028, NAU2342, NAU868, HAU1300, NAU6094, DPL0238, NAU1362, NAU859, HAU2786, CGR6410 and NAU0478 primers, if a PCR amplification product meets more than 28 standards in the standards of 1)-30), and the to-be-tested cotton is CCRI 63, wherein the genomic DNA of to-be-tested cotton is taken as a template. The method disclosed by the invention can be applied to controlling the quality of cotton seeds, ensuring the quality of commercially available CCRI 63 seeds and fighting against counterfeiting CCRI 63 seeds.

The invention belongs to the technical field of benthic animal identification, and discloses a method utilizing environmental sediment samples to monitor freshwater benthic animals. The method includes the following steps: 1) collecting an environmental sediment sample to preserve after cleaning; 2) adding anhydrous ethanol in the preserved environmental sediment sample to perform extraction treatment, taking uniformly mixed extract liquid after treating for a period of time, performing vacuum centrifugation on the extract liquid, and discarding supernatant to obtain dried tissue residues so as to perform DNA extraction; 3) utilizing the extracted DNA barcode fragment to perform amplification so as to obtain an amplified product; and 4) sequencing and analyzing the amplified product. The method performs extraction on the sample by adopting the anhydrous ethanol so as to make the DNA of a benthic animal uniformly released in the solution, so that a homogeneous state can be achieved; andthrough the collection of the ethanol solution containing the DNA sample and the extraction of the DNA after centrifugal concentration, the accurate monitoring of a wide range of environmental samples can be realized.

The method for screening radish late bloting character includes the stage of vernalization and photostage, and adopts the following steps: disinfecting the seed to be identified and soaking the seed with sterile water for accelerating germination, inoculating the seed in sprouting state into MS culture medium, placing it into refrigerator, making artificial iarovization in time periods, after low-temp. treatment placing it into tissue culture chamber to make growth culture of radish seedling. In the photostage transplanting the radish seedling into the prenursery tray with matrix and placing it into tissue culture chamber and observing the bolting condition of squaring period by using different materials and making different treatments to identify the bloting characters of different materials, so that it can accelerate radish late bloting breeding process.

The invention provides a method for rapidly identifying and screening salt-tolerant materials in the sorghum germination period. The method comprises the steps of seed treatment, root culture, sodium chloride stress treatment, salt tolerance judgment and the like. The bending degree of a root is observed. If root bending length is larger than 0.2 cm compared with that before treatment, that is, the root bends under the salt stress, the root has strong salt tolerance. If the root is upright and no change occurs after the salt treatment, it indicates that the root of the variety does not grow under the salt stress and the variety belongs to salt-sensitive sorghum materials. The method has the advantages of fast identification, accurate and visual effect, low requirement for identification environment conditions and high controllability. The method can also be used for quickly screening the limit concentration of salt tolerance of some or certain sorghum varieties, and screening salt-tolerant and salt-sensitive materials from a large number of sorghum germplasm resources or breeding materials.

The turnip heat tolerance character screening process incldues measuring the semilethal time of 30-day seedling at 45 deg.c high temperature condition to determine the direct high temperature tolerant capacity for different material cells and the restoring growth experiment to determine the growth restoring case after relieving high temperature. The said process can judge the heat tolerance characteristics of different turnip materials simple and fast, and is favorable to shorten breeding period for breeding excellent varieties. It can raise new variety identifying speed when used in introducing, raise effectiveness of screening heat tolerant turnip variant when used in breeding, and avoid the loss of excellent germ plasm during screening.

The invention provides a method for quickly detecting the quality of black rice. The method comprises the following steps: firstly, sealing an acid solution (used as a detection reagent A) with Ph value of 2-5 for later use, or sealing an alkaline solution (used as a detection reagent B) with Ph value of 9-12 for later use; then, placing black rice samples into a small vessel; adding the prepared detection reagent A or detection reagent B into the small vessel to submerge the black rice; and finally, observing the color changing condition of the detection reagent and distinguishing. The method utilizes the characteristics that anthocyanin contained in the black rice becomes red when meeting the acid solution and the anthocyanin becomes blue when meeting the alkaline solution; according to the method, the acid solution and the alkaline solution are used to identify the quality of the black rice; the operation method is simple, the dosage of the detection reagent is less, the identifying speed is high, the result can be obtained within one minute and is accurate, and the method is really simple, quick and accurate.

The invention discloses a distributed accelerating method and system for open type protein identification. The distributed accelerating system for open type protein identification comprises a protein index establishing module, a spectrogram data preparation module, a query marking module and a result summarizing and output module. According to the distributed accelerating method and system for open type protein identification, cluster resources can be effectively utilized, a user is allowed to conduct protein identification on the premise that the types of enzyme digestion and grooming are not appointed in a large protein bank or any type of enzyme digestion and grooming is appointed, and protein map identification speed and analysis rate are effectively improved.

The invention discloses a molecular identification method of a tree species of a wood and a material of each part of a wood product. The method comprises: if it is judged that all of a cross section, a longitudinal section, and a peeled section of a to-be-identified wood or a material of a part of a wood product achieve a set smoothness standard, obtaining microscopic characteristic information of the wood or the material of the part of the wood product at a cellular level and a molecular level from the cross section, the longitudinal section, and the peeled section; and comparing the obtained microscopic characteristic information at a cellular level and a molecular level with microscopic characteristic information of known tree species at a cellular level and a molecular level to determine the tree species of the wood or the material of the part of the wood product. Based on the comparison of microscopic characteristic information at a cellular level of the to-be-identified wood or the material of the part of the wood product with that of known tree species, a comparison method of microscopic characteristic information at a molecular level is added, so that the tree species of the wood or the material of each part of the wood product can be accurately identified.

The invention discloses a method for fast separating, identifying and storing sweet potato sclerotium rolfsii.The method comprises the following steps that 1, a PDA medium plate is inoculated with hyphae or sclerotia selected from a disease sample of the sweet potato sclerotium rolfsii and placed at the temperature of 20 DEG C to 30 DEG C for culture; 2, after new hyphae grow out of the PDA medium plate, new hyphae are selected and placed on a new PDA medium plate for purifying culture; 3, after purified strains are cultured for 2 d to 4 d at the temperature of 20 DEG C to 40 DEG C, a healthy sweet potato stem branch is inoculated with hypha blocks as inocula, PDA blocks are adopted as blank control, culture is carried out for 1-3 days under the sealing condition at the temperature of 20 DEG C to 30 DEG C, and when the phenomenon that the stem branch rots occurs, the sweet potato sclerotium rolfsii is confirmed; 4, sclerotium culture is carried out on the sweet potato sclerotium rolfsii, and then sclerotia are dried and stored.According to the method, the process of fast separating, identifying and storing the strains of the sweet potato sclerotium rolfsii can be simple, the workload is small, efficiency is high, and the preserved strains are easy to manage and long in survival time and can survive for 4 years or longer.

A system may automatically identify electronic records to be routed to an existing association review process via an automated back-end application computer server. The system may include a data store containing a set of electronic records, each record representing an existing risk association with an entity, and each record may contain a record identifier and a set of record characteristic values, including at least one record characteristic value collected during the existing risk association. The computer server may then access the electronic records and automatically create, by an analytics decision model based on the record characteristic values, a subset of the records for the review process. An indication of the existing association review process subset may then be transmitted in connection with an interactive user interface display and records in the subset may be automatically routed for the existing association review process.

The invention discloses an intelligent identification device and method for a rock slice, and the device comprises microscopic image collection equipment which collects a rock microscopic image of the rock slice; mineral measurement imaging equipment which is used for acquiring a mineral fingerprint image of the rock slice; and an image processing system which is connected with the microscopic image acquisition equipment and the mineral measurement imaging equipment, and is used for identifying the rock slice based on the rock microscopic image and the mineral fingerprint image. According to the intelligent identification device for the rock slice, the method comprises the steps: acquiring the rock microscopic image through the microscopic image acquisition equipment, acquiring the mineral fingerprint image through the mineral measurement imaging equipment, digitally synthesizing the rock microscopic image and the mineral fingerprint image through the image processing system, and identifying the rock slice; and finally, outputting a rock slice identification report, so that intelligent and automatic identification of the rock slice is realized, the influence of subjective factors of manual identification is avoided, the identification accuracy is high, and the identification speed is high.

The invention discloses a method and a system for accelerating large-scale protein identification by using a suffix array. The method comprises the steps of: 1, establishing a corresponding suffix array according to a protein sequence in a database, and deducing a longest public prefix corresponding to the protein sequence according to the suffix array; 2, performing online enzyme digestion on the protein sequence based on the longest public prefix and an enzyme digestion rule so as to obtain a non-redundant peptide; and 3, performing peptide mapping matching identification according to a tandem mass spectrum and the non-redundant peptide, and deducing a corresponding protein sequence by utilizing the peptide obtained through identification. According to the invention, the purposes of redundant peptide removal and rapid query are achieved, and the identification speed for the protein is increased; meanwhile, the method is beneficial to lossless precision, requires less time and space and is more convenient to use.