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502results about How to "Efficient detection method" patented technology

Satellite communication network abnormity detection method based on network control

The invention discloses a satellite communication network abnormity detection method based on network control. A fuzzy C-means clustering algorithm is utilized to study normal audit data and an abnormity detection mechanism is established, so that a post analysis on an abnormal event is realized; a support vector data description single classifier is utilized to summarize a normal short sequence and an abnormal short sequence as well as a hidden Markov model is used to carry out abnormity detection on communication signalings of all earth stations in a whole time slot, so that real-time detection based on the communication signalings can be realized; and by utilizing the above-mentioned methods of the post analysis and the real-time detection, a satellite communication network abnormity detection prototype system based on network control is realized. According to the invention, the post analysis method is suitable for large-scale data as well as a declaration omission rate and a misdeclaration rate are low; and the real-time detection method has a good detection performance as well as signaling detection time is short and the reaction speed is fast; therefore, an on-line detection object can be realized and safety of a signaling system can be enhanced.
Owner:PLA UNIV OF SCI & TECH

Multiple-PCR detection method and kit for simultaneously detecting WSSV (white spot syndrome virus), AHPND (acute hepatopancreatic necrosis disease), EHP (enterocytozoon hepatopenaei) and IHHNV (infectious hypodermal and hepatopancreatic necrosis virus) in prawns

The invention belongs to the technical field of marine organism pathogen detection, and in particular relates to a multiple-PCR detection method and a kit for simultaneously detecting WSSV (white spot syndrome virus), AHPND (acute hepatopancreatic necrosis disease), EHP (enterocytozoon hepatopenaei) and IHHNV (infectious hypodermal and hepatopancreatic necrosis virus) in prawns. With the application of the multiple-PCR detection method, amplification of four pathogen DNAs can be simultaneously conducted in one time by virtue of special detection primers, namely WSSV F and WSSV R, AHPND F and AHPND R, EHP F and EHP R as well as IHHNV F and IHHNV R of the WSSV, the AHPND, the EHP and the IHHNV. The multiple-PCR detection method provided by the invention is convenient and rapid, low in detection limit, strong in specificity, high in sensitivity and high in accuracy rate and is capable of simultaneously detecting the white spot syndrome virus, the acute hepatopancreatic necrosis disease, the enterocytozoon hepatopenaei and the infectious hypodermal and hepatopancreatic necrosis virus in the prawns.
Owner:MARINE BIOLOGY INST OF SHANDONG PROVINCE

Method for detecting sulfanilamide medicine and special enzyme-linked immunoassay reagent kit thereof

The invention discloses a method for detecting a sulfanilamide medicine and a special enzyme-linked immunoassay reagent kit thereof. The enzyme-linked immunoassay reagent kit comprises a sulfanilamide medicine monoclonal antibody and the sulfanilamide medicine. The sulfanilamide medicine monoclonal antibody is secreted by the hybridoma cell line SAs of a sulfanilamide monoclonal antibody, whose preservation number is CGMCC No. 3393. In the enzyme-linked immunoassay reagent kit of the invention, an indirect competition ELISA (Enzyme-Linked Immuno Sorbent Assembly) method is mainly used for qualitatively or quantitatively detecting the content of the sulfanilamide medicine in products (especially milk, pork, chicken, eggs, honey, fish, shrimp and the like) eaten by animals or people. The reagent kit and the detection method of the invention have low requirements on the pretreatment of samples and simple pretreatment process of the samples and can detect mass samples quickly at the same time. By using the sulfanilamide medicine monoclonal antibody with high specificity, the detection method is convenient and simple, and the invention has the characteristics of high specificity, high sensibility, high precision, high accuracy and the like.
Owner:北京维德维康生物技术有限公司

Method and device for accurately detecting and correcting parallelism of ion beam

The invention discloses a method and a device for accurately detecting and correcting parallelism of an ion beam, relates to an ion implantation machine, and belongs to the field of semiconductor integrated circuit device manufacturing. The device for detecting and correcting the parallelism comprises a parallelism correcting magnet, a correcting magnet power supply, a moving Faraday cup, a sampling Faraday cup, a dosage detector, a digital scanning generator, a motor motion controller, and a control computer. The parallelism correcting magnet is arranged at a proper position behind an electrostatic scanning plate, and a magnet exciting coil of the parallelism correcting magnet is connected with the correcting magnet power supply. The output of the sampling Faraday cup is connected with the dosage detector; the output of the digital scanning generator is connected with a scanning amplifier and the scanning amplifier is connected with the electrostatic scanning plate. The output of the motor motion controller is connected with a drive motor of the moving Faraday cup. The moving Faraday cup is driven by the drive motor and is capable of moving along the X horizontal direction in a target chamber. The correcting magnet power supply, the moving Faraday cup, the sampling Faraday cup, the dosage detector, the digital scanning generator, the motor motion controller are connected with the control computer, and are coordinated and controlled by the computer. The method for detecting and correcting the parallelism of the ion beam comprises the following steps of data detection, data processing, parameter adjustment, and the like. Error data of the parallelism of the ion beam is detected by moving the Faraday cup back and forth, and the parallelism of the scanning ion beam reaches an error range by adjusting the setting current of the magnet power supply repeatedly. The method and the device can automatically realize accurate detection and correction of the parallelism.
Owner:BEIJING ZHONGKEXIN ELECTRONICS EQUIP

Quick detecting method of edible vegetable oil quality

The invention discloses a quick detecting method of the edible vegetable oil quality through using an attenuated total reflection Fourier infrared spectroscopy, and the problems that the current detecting method can not verify whether the edible vegetable oil is repeatedly heated at high temperature or whether swill-cooked dirty oil is mixed in fresh edible vegetable oil can be solved. The method comprises the steps of: indicating the change of oil ingredients by fully utilizing the changes of the peak shape and the peak height of an infrared second derivative spectrometry; measuring the content of trans-fatty acids in the edible vegetable oil through absorbance of a characteristic absorption peak at 966.50cm<-1>; judging whether the edible vegetable oil is heated through the change of the characteristic peak at 988cm<-1>, and calculating the heating time; and determining whether the edible vegetable oil is swill-cooked dirty oil through the change of the characteristic absorption peak at 988cm<-1>. The quick detecting method of the edible vegetable oil quality is simple in operation, low in cost, free of pollution, high in detecting precision, and quick and accurate and can be capable of judging an edible vegetable oil sample to be detected which is repeatedly heated at the high temperature, the swill-cooked dirty oil and the swill-cooked dirty oil mixed in the fresh edible vegetable oil.
Owner:辽宁省分析科学研究院

Automatic parking space tracking method

The invention relates to an automatic parking space tracking method. The automatic parking space tracking method comprises the steps of obtaining parking space information, wherein the parking space information comprises absolute coordinates and directions of a parking space; obtaining vehicle position information, wherein the vehicle position information comprises the absolute coordinates and heading angles of the vehicle; establishing a relative coordinate system between the parking space and the vehicle by taking the absolute coordinate of the vehicle as an original point, and acquiring therelative coordinate of the parking space; and planning a parking path according to the relative coordinates of the parking space, detecting whether obstacles exist or not in the automatic parking process, if yes, stopping parking of the vehicle and reversely driving for a preset distance, otherwise, finishing the automatic parking process according to the parking path. According to the automaticparking space tracking method, the obstacles can be detected through the change of the acceleration of the vehicle in the parking process, various parameters of the obstacles are further obtained through a 360-degree panoramic system, and different responses are made according to different properties of different obstacles, so that the intelligence of the automatic parking process is improved, andthe trouble caused by frequent replacement of the parking paths is avoided.
Owner:HUIZHOU DESAY SV AUTOMOTIVE

Vision auxiliary sheet material excess material stock layout method

The present invention relates to the field of the laser cutting, especially to a vision auxiliary sheet material excess material stock layout method. The method comprises the following steps: (1) performing camera calibration; (2) collecting an image; (3) extracting the contour of an area having been cut; (4) selecting a cutting figure and setting parameters; (5) dragging a figure and mapping the figure to a visualization window; (6) determining a stock layout position; (7) finishing the stock layout; (8) determining whether there are excess materials for usage; and (9) finishing the stock layout of the sheet materials, and generating the processing position instruction of the cutting figure. Compared with the prior art, the vision auxiliary sheet material excess material stock layout method can realize automatic detection and accurate determination and enhance the management and the application of the sheet material excess material so as to greatly reduce the excess material waste and the material cost of the manufacturing enterprise, allow operators to easily move the parts to be processed and easily determine whether the area of the excess material can cut parts to be processed or not and provide an effective detection and determination method for full utilization of the excess materials.
Owner:上海柏楚电子科技股份有限公司

Difference degree calculation method and tea quality identification method based on electronic tongue detection

The invention belongs to the technical fields of application methodology and electronic tongue detection, and discloses a difference degree calculation method and tea quality identification method based on the electronic tongue detection. The difference degree calculation method comprises the steps of electronic tongue detection, PCA analysis, and difference degree calculation; wherein the difference degree calculation adopts a recently improved calculation mode, each coordinate in the PCA score matrix is taken into account during the calculation process in a form of distance between each coordinate and the center point so as to reduce the affect of the random errors during the experiment process, and an sample acceptable fluctuation range is formed at the same time. The tea quality identification is on the basis of the electronic tongue difference degree detection of tea samples, the same tea species is taken as the standard, the credibility interval is set according to the difference degree in each group, and thus established is a standard sample experiment measured value error range. If the measured value of a tea sample is in the credibility interval, the sample is qualified; and if the measured value of a tea sample is not in the credibility interval, the sample is disqualified. The method can be used to control tea quality, and is a more efficient and stable detection method for market, enterprises, and detection organizations.
Owner:ZHEJIANG GONGSHANG UNIVERSITY

Lithium battery rapid charging management system and method for electric power tunnel inspection robot

The invention discloses a lithium battery rapid charging management system and method for an electric power tunnel inspection robot. The lithium battery rapid charging management system comprises an upper computer, an intelligent robot charging dispatching module, a battery management module, a track charging contact mechanism and a fixed point intelligent rapid charging apparatus, wherein the upper computer communicates with the intelligent robot charging dispatching module and the fixed point intelligent rapid charging apparatus separately; the intelligent robot charging dispatching module communicates with the battery management module; and the battery management module establishes communication with the fixed point intelligent rapid charging apparatus through the track charging contact mechanism. The lithium battery rapid charging management system and method have the beneficial effects that the charging equipment is mounted on the existing track, so that low cost is realized; the charging management system can realize real-time communication with the robot and the upper computer; the positions of each charging equipment in the tunnel are stored in the robot, so that the most reasonable charging equipment can be found according to positions and respective electric quantity; and therefore, the stable electric power supply and effective operation of the robot are ensured.
Owner:康威通信技术股份有限公司

Direct current micro voltage/micro current detection device and detection method thereof

The invention discloses a direct current micro voltage/micro current detection device and a detection method thereof. The detection device comprises an oscillation circuit, a digital signal amplifying circuit, a subtractor and a numerical value scaling unit, wherein the oscillation circuit comprises a first voltage-controlled oscillator and a second voltage-controlled oscillator, the parameters of the first voltage-controlled oscillator and the second voltage-controlled oscillator are the same, the input of the first voltage-controlled oscillator is connected with the output end of a signal to be detected or is grounded, the input of the second voltage-controlled oscillator is grounded or is connected with the output end of the signal to be detected, the output of the first voltage-controlled oscillator and the output of the second voltage-controlled oscillator are respectively connected with the input of the digital signal amplifying circuit; the output of the digital signal amplifying circuit is connected with the input of the subtractor, and the output of the subtractor is connected with the input of the numerical value scaling unit. The method comprises the following steps: the detection device respectively converts an input signal into oscillation frequencies by the first voltage-controlled oscillator and the second voltage-controlled oscillator, and amplifying, subtracting and conversion are carried out, so as to judge whether a direct current micro voltage or direct current micro current is input or not.
Owner:漳州国绿太阳能科技有限公司

Baicalin content detecting method and system based on terahertz time domain spectroscopy

The invention provides a baicalin content detecting method and system based on terahertz time domain spectroscopy. The method comprises the steps of: preparing samples of mixtures with different baicalin contents; collecting terahertz time domain signals of no-load and the samples; performing Fourier transform on the collected terahertz time domain signals of no-load and the samples to obtain terahertz frequency domain signals of reference and the samples, and performing calculation to obtain terahertz absorption spectra of the mixtures; p reprocessing the absorption data of the spectra, calculating the similarity of the absorption spectrum of the mixture of each ratio, removing the abnormal spectra, and dividing the samples into a correction set and a verification set; using the terahertzabsorption spectra of the calibration set and the corresponding baicalin concentration information as input, establishing a baicalin content prediction model based on sample data in the calibration set sample data by using partial least squares method, verifying the prediction model, and outputting the prediction model that meets the requirements; and detecting a baicalin sample to be detected byusing the prediction model, and outputting a detection result.
Owner:SHANDONG ACAD OF SCI INST OF AUTOMATION
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