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328results about How to "Comprehensive test results" patented technology

Abnormal power consumption detection method and system

The invention discloses an abnormal power consumption detection method. The method comprises the following steps: A, pre-processing the currently collected data and the history data; B, detecting the pre-processed data by adopting a data mining algorithm so as to recognize the suspected abnormal power consumption users; C, taking part of the suspected abnormal power consumption users that exceed a preset threshold parameter as abnormal power consumption users to carry out feedback; D, carrying out association analysis on the abnormal power consumption data in the history data by using an association algorithm so as to extract an abnormal power consumption internal association rule, and expressing the analysis result by using a form or a graph; and E, carrying out statistics on the distribution of the abnormal power consumption users in different industries and types and the data of specific abnormal power consumption users for query. According to the abnormal power consumption method, the power consumption data accumulated by the existing power grid information acquisition system is analyzed so that the abnormal power consumption users are detected; and through detecting the abnormal power consumption users, the detection result is more comprehensive, the detection correctness and the detection efficiency are improved, and the detection time is saved.
Owner:QUANZHOU POWER SUPPLY COMPANY OF STATE GRID FUJIAN ELECTRIC POWER +1

Method for forecasting rock blasting damage depth of nuclear power projects

The invention relates to a method for forecasting rock blasting damage depth of nuclear power projects. The method comprises the following steps of performing the blasting vibration testing to determine a site vibration attenuation rule; performing the sound wave testing to primarily determine the rock damage depth; performing the finite element numerical simulation, and calculating the rock particle vibration speed and rock blasting damage depth; respectively establishing the change rules of the particle peak vibration speed (1m away from a blasting source R) along with the rock blasting damage depth under the step blasting and pre-fracturing blasting types; substituting the explosive charging quantity Q0 of an actual section into the site blasting vibration attenuation rule and the change rules of the particle peak vibration speed along with the rock blasting damage depth, so as to forecast the blasting damage depth caused by the explosive charging quantity. The method has the characteristics that one part of site sound wave testing can be replaced with the numerical simulation, the site testing frequency is reduced, the field workload is reduced, and the construction efficiency is improved; the site blasting group hole effect is comprehensively considered, the forecasting is accurate, and the operation is convenient and rapid.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI

Automatic detection method for oblique incidence wave technology steel plate and device thereof

The invention aims at providing an automatic detection method of an oblique incidence body wave technical steel plate, which carries out comprehensive and fast detection to steel plates with the thickness of less than 75mm and accurately detects various defects, and a device thereof, and the device consists of an electromagnetic ultrasonic detection unit and a circuit system. The invention adopts the oblique incidence body wave mode to carry out detection to the steel plates, which not only is more sensitive to the detect in size, but also can detect the defects of cracks and the like, thus having more comprehensive detection result. The detection unit adopts a mode that transverse arrangement and longitudinal arrangement are combined, thus being more sensitive to the defects of the transverse and the longitudinal direction. The invention combines an ultrasonic transmission method and a reflection method, which not only has higher sensitivity to the defects, but also can position the defects precisely, thus having higher confidence level of the detection result. The invention has wider range for detecting the thickness of the wall of the steel plate, with the highest of 75mm, thus meeting the requirements for the steel plate with thick wall.
Owner:HARBIN INST OF TECH

Complex distortion generator for testing stability of compressor

The invention discloses a complex distortion generator for testing the stability of a compressor. The complex distortion generator comprises a steady-state total pressure distortion generator and a rotational flow distortion generator which are arranged in a compressor casing along the length direction, and is characterized in that the steady-state total pressure distortion generator generates different ranges of steady-state circumferential total pressure distortion through controlling distributed nozzles, and adjusts the air injection speed of the nozzles to change the steady-state total pressure distortion intensity; the rotational flow distortion generator adjusts the rotational flow distortion form through changing the angle of a rotational flow adjustment plate in a switching section of a rotational flow generator, generates three kinds of rotational flow distortion such as same-direction single vortex, opposite-direction single vortex and pair vortex, and can change the rotational flow distortion intensity through adjusting the pressure of an air pump and the openness of an electromagnetic valve. The complex distortion generator is simple in structure and convenient to operate, can generate individual steady-state total pressure distortion or rotational flow distortion at an inlet of the compressor conveniently, can also generate steady-state total pressure and rotational flow combined distortion, facilitates to carry out tests on influences imposed on the stability of the compressor by different forms of complex distortion, and is stable and reliable in operation.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Fault location method for vibration and noise abnormality of GIS combined electrical appliance in substation

The invention discloses a fault location method for vibration and noise abnormality of a GIS combined electrical appliance in a substation. A GIS combined electrical appliance, a vibration test analyzer and a noise test analyzer are arranged. The GIS combined electrical appliance includes a circuit breaker, a bus, a disconnecting switch, a voltage transformer, a current transformer, and a lightning arrester. The invention provides a method for testing the vibration and noise of the GIS combined electrical appliance in a substation, thereby realizing accurate and comprehensive test result and providing the systematic and scientific test results for the production, debugging, operation and maintenance personnel. A method for vibration and noise fault analysis and location is also put forwardby combining the test method, so that the vibration and noise faults can be analyzed according to the test results to find out coherence of the key factors causing the problems and thus the fault location is realized. The fault location method has the high innovation; the blank in the field related with the vibration and noise of the current GIS combined electrical equipment is filed; and the safe and stable operation of the 110-kV substation equipment is guaranteed effectively and the high-efficiency maintenance is realized.
Owner:国网山东省电力公司昌乐县供电公司 +1

Green tea beverage quality analysis apparatus based on intelligent electronic nose system, and method

The invention relates to a green tea quality analysis apparatus based on an intelligent electronic nose system, and a method. In the prior art, detection on volatile gases in beverage samples is performed through human body organs, such that technical problems of subjective difference and harm on human body exist. A purpose of the invention is to solve the technical problems in the prior art. The apparatus comprises a gas collection unit, a gas sampling unit, a treatment unit and a control unit, wherein the gas collection unit comprises a gas chamber, a sample chamber, a first communication pipe and a second communication pipe, the gas chamber, the sample chamber, the first communication pipe and the second communication pipe form a loop-shaped circulation path, the gas sampling unit is connected with the gas chamber, the treatment unit and the gas sampling unit are connected, and a gas inlet mechanism, a gas outlet electromagnetic valve and the gas sampling unit are respectively connected with the control unit. According to the present invention, the electronic nose system is built, such that the detection result is comprehensive and objective, and hazard of sample gas on human health is avoided; and gas is subjected to circulation flow during gas sampling, such that gas mixing is uniform, and detection data is accurate.
Owner:ZHEJIANG GONGSHANG UNIVERSITY

Bearing vibration measurement machine

The invention discloses a bearing vibration measurement machine. The bearing vibration measurement machine comprises a rack, a raceway, a vibration measurement rod, a material placing frame and an automatic feeding mechanism, wherein the rack is provided with a worktable; the raceway is adapted to a bearing when the bearing is upright; the material placing frame is used for placing materials; a rotating body is arranged in the material placing frame and is provided with an interlayer used for placing the bearing; the vibration measurement rod faces the interlayer of the rotating body; a slidable sliding table is arranged on the worktable; the material placing frame and the vibration measurement rod are arranged on the sliding table; a vertical rotating motor is fixedly arranged below the sliding table; the output shaft of the rotating motor is connected with the material placing frame; a fixed table is arranged on the worktable; a rotary motor is arranged on the worktable; a friction disk is arranged on the output shaft of the rotary motor; the friction disk is positioned in front of the rotating body and faces the rotating body; the sliding table is connected with the fixed table through a tension spring; and the automatic feeding mechanism is positioned on one side of the head of the raceway. By using the bearing vibration measurement machine, the materials are conveyed by vibrating; the work efficiency is improved; the labor is saved; and the bearing can rotate at 180 degrees, so that enough test points are provided, and the test results are more abundant.
Owner:NINGBO DONGHUANG BEARING

Differential privacy disclosure detection method and system for to-be-published text of social network

The invention discloses a differential privacy disclosure detection method and system for a to-be-published text of a social network. According to the method, various possible privacy disclosure waysare comprehensively and deeply analyzed; A current to-be-published text of a user is comprehensively considered. A multi-dimensional feature-based privacy disclosure detection convolutional neural network model is established based on the privacy disclosure detection convolutional neural network model, the aggregation effect of privacy information is fully considered, and omnibearing privacy disclosure detection is carried out according to the aggregation effect, so that the detection result is faster, more comprehensive and more accurate. According to the privacy disclosure degree obtained through two times of detection, difference is carried out to obtain the current text privacy disclosure condition. According to the privacy disclosure detection method and device, whether the privacy disclosure prompt is carried out or not is determined, the limitation that a traditional method needs to consider the privacy category is avoided, the complexity that text content is classified first and then privacy disclosure detection is carried out according to features extracted according to the category to which the content belongs in the traditional method is also avoided, and the privacy disclosure detection efficiency is improved.
Owner:BEIJING INFORMATION SCI & TECH UNIV

Mechanism for detecting automobile fitting

The invention relates to the technical field of detection, and particularly discloses a mechanism for detecting an automobile fitting. The mechanism comprises a frame, the frame is provided with a first stepping motor and a second stepping motor, the output end of the first stepping motor is connected with a rotating plate, the rotating plate is connected with a telescopic cylinder, and the telescopic cylinder is connected with a vertical shaft; the internal of the vertical shaft has a hollow structure, the inner wall of the vertical shaft is slidably connected with a slide block, the sidewall of the vertical shaft is slidably connected with a plurality of slide rods perpendicular to the central axis of the vertical shaft, one ends of the slide rods are connected with first wedge-shaped blocks cooperating with the slide block, the other ends of the slide rods are connected with clamping pieces, and a first spring is connected between the adjacent first wedge-shaped blocks; the telescopic cylinder is internally slidably connected with a first piston, and the first piston is connected with a first piston rod for pushing the slide block; and the output end of the second stepping motor is connected with a telescopic portion, the telescopic portion includes a second wedge-shaped block, and the second wedge-shaped block is in threaded connection with a friction plate. The inventionaims at realizing the comprehensive detection of the wear resistance of the automobile fitting and improve the credibility of a detection result.
Owner:太仓英太思机械有限公司

Real-time fault diagnosing and early warning device for coal mine ventilator based on virtual instrument development platform

The present invention relates to a coal mine ventilator real-time fault diagnosis and early warning device based on a virtual instrument development platform (LabVIEW), including an integrated industrial computer, a vibration signal detection module, an ARM processor, a stabilized power supply module, an SD storage module, and a USB interface chip. The vibration signal detection module processes the detected vibration signal and transmits it to the A / D analog-to-digital converter of the ARM processor, and the ARM processor transmits the processed digital signal to the integrated industrial computer through the USB interface chip or stores it in the SD storage module . The LabVIEW platform of the integrated industrial computer calls the algorithm program in MATLAB through the MatlabScript node, and performs wavelet denoising filtering, CEEMDAN feature extraction, Hilbert transform, and improved support vector machine classification and recognition on the fan vibration signal transmitted to the industrial computer. , the final result of fault diagnosis is displayed on the front panel interface, and the early warning module is called to sound and light alarm for fault information, and sound and light early warning for hidden faults. The device has good real-time performance, high openness, friendly man-machine interface and high reliability.
Owner:CHINA UNIV OF MINING & TECH

Version upgrading test method and device

The invention relates to the technical field of hyper-fusion, in particular to a version upgrading test method and device. The method comprises the steps of receiving an instruction which is sent by atest terminal and carries a target upgrading strategy item, installing a system installation file of a target version based on the target upgrading strategy item, and completing the system installation of the target version, wherein the test terminal stores system installation files of a plurality of historical versions; and the upgrading strategy configuration file comprises an upgrading strategy item corresponding to each historical version; receiving a test cluster initialization instruction, completing cluster initialization, receiving a service deployment configuration file sent by the test terminal, and performing service deployment based on the service deployment configuration file; receiving an upgrade instruction sent by the test terminal, obtaining a corresponding upgrade package based on the upgrade instruction, performing version upgrade processing based on the upgrade package, and recording an upgrade test result; and when it is determined that the test operation is executed for each upgrading strategy item, determining that the test is completed, and generating a corresponding upgrading test result.
Owner:NEW H3C BIG DATA TECH CO LTD
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