124results about How to "Easy to analyze and study" patented technology

The invention relates to a device and a method for capacitor bank protection and state monitoring. The device consists of a capacitor bank, a breaker, a voltage mutual inductor, a current mutual inductor and a controller, wherein the controller controls the switching on / off of the breaker according to signals of the mutual inductors. The method comprises the following steps: calculating condensance change rate according to the condensance value of a fault phase of the capacitor bank and a rated condensance value, and taking the condensance change rate as a protection setting value; calculating the power-frequency condensance value of each phase of the capacitor bank according to the end voltage and current power-frequency effective value of each phase of the capacitor bank detected in real time; before the switching of the capacitor bank, inputting the original measured value and protection setting value of each phase in a protective device; after the switching of the capacitor bank, calculating real-time condensance change rate according to condensance monitored in real time and an original value; and finally, comparing the real-time condensance change rate and the protection setting value, and switching off the breaker when meeting the conditions so as to switch off a fault capacitor bank. The device is sensitive and reliable and is free from the influences of external factors such as capacitor imbalance, asymmetrical balance of a three-phase power supply, operating characteristic deviation between sensors and harmonic of a power system.

The invention relates to a text big data based digitized emergency management case library establishment method and device. The method comprises the steps that data is acquired at regular intervals, and the acquired data is preprocessed to obtain Chinese text segmentation results; based on the Chinese text segmentation results, identification of emergency related data is achieved through data cleaning according to a set emergency field keyword vocabulary to obtain emergency classification results; based on the emergency classification results, identification and tracking of special emergencies are performed; structuralized information description is conducted on special data about emergency identification and tracking by utilizing an information extraction method to obtain various emergency case libraries. The emergency related data can be automatically acquired, and secondary emergency classification can be automatically achieved. The special emergency identification and tracking can be automatically performed, and analysis and information extraction conducted on designated emergency related data are represented through cases to form emergency case representation.

The invention discloses a thin-wall high temperature alloy tubing simulation extrusion device, belonging to tubing thermal-extrusion field. The device comprises a standard die set with a guiding device, and a simulation tubing thermal-extrusion mould which is arranged on the standard die set with the guiding device, the standard die set comprises an upper die holder, a lower die holder, a guide pillar and a guide bush, one end of the guide bush is connected with the upper die holder, the guide post is connected with the lower die holder, and the other end of the guide post is sheathed in the guide bush and can move along the guide bush up and down. The simulation tubing thermal-extrusion mould comprises an extrusion shaft, an extrusion needle, an extrusion pad, a positioning frame, an extrusion container inner lining, an extrusion container outer lining, a die cushion, a cushion block and an extrusion die. The device of the invention has good popularity; the guide post and the guide bush are adopted, the die cushion and the extrusion container have positioning ring coordination, the extrusion needle and the extrusion pad have guide coordination, good alignment, and convenient and flexible use; the time consumption of experimental process is short, the efficiency is high, the material use ratio is high and the cost is low.

The invention discloses a system for testing the dynamic parameter of a high-speed electromagnetic valve for a knitting machine. The system comprises a testing table (1), a measurement and control circuit board (2), an upper computer (3) and an external power supply module (4), wherein the upper computer (3) comprises a data acquisition card and an image acquisition card; the data acquisition card is used for communicating with the measurement and control circuit board (2) and measuring a voltage signal to be tested, which is output by the measurement and control circuit board (2); and the image acquisition card is used for synchronously acquiring and storing output data of a high-speed line scanning camera (5) and has the function of synchronously triggering a measurement interface circuit board (12). In the system, by adopting a machine vision-based non-contact measurement method and a design method of a virtual instrument, using a general computer and the data acquisition card and combining a self-developed hardware testing platform, the dynamic response time of the electromagnetic valve is accurately measured, and necessary testing data is provided for the design and inspection of electromagnetic valve products.

The invention relates to a system and a method for large-range synchronous real-time meteorological data measurement and wind speed and direction prediction. The system consists of a high-precision acquisition terminal, a wireless transmission device and a data center. A large-range synchronous real-time meteorological data acquisition, analysis and prediction system consisting of a data center, a plurality of data acquisition terminals and wireless transmission systems can be established by using the system and the method. According to the system and the method, a BP (Back Propagation) nerve network model is utilized, wind speed and wind direction of a target node within 5 minutes can be predicted according to present meteorological data of all points of the system; in order to improve the prediction accuracy, the prediction model consists of eight prediction models, that is, daytime in spring, night in spring, daytime in summer, night in summer, daytime in autumn, night in autumn, daytime in winter and night in winter, each model is acquired through a great amount of data samples through nerve network training and learning, and moreover in the application process, the prediction model is continuously improved according to errors between actual measurement data and prediction data.

The invention provides a method for measuring soil bulk density in real time. The method comprises the following steps of measuring soil under an undisturbed soil condition on line; acquiring a voltage signal of soil moisture volume percentage through a frequency domain reflection method, and determining the value of the soil moisture volume percentage through a calibration test method; acquiring the original spectral data of soil moisture weight percentage through a visible light-infrared reflection method, preprocessing the original spectral data and then substituting the data into a regression model preset in a system to calculate the soil moisture weight percentage; converting the soil bulk density from the soil moisture volume percentage and the soil moisture weight percentage. The invention also provides a device for measuring the soil bulk density. The device comprises a conical rod, a coaxial cable, an optical fiber, a soil moisture volume percentage probe, a soil moisture weight percentage probe, a soil moisture volume percentage detection module, a soil moisture weight percentage detection module and a panel computer. The method and the device which are provided by the invention can conveniently, fast and accurately obtain the soil bulk density of field soil at special section depth in real time without sampling the soil.

The invention relates to an electrical test training and examination simulation system, which belongs to the field of high-voltage electrical test teaching, and the system consists of a computer local area network part, an internet access gateway part, a remote client part, a simulation test device part and a simulation test transformer substation part. Due to the adoption of the electrical test training and examination simulation system, a completely novel top-grade training condition can be provided for different training personnel in the electrical test teaching field and especially for in-situ overhauling personnel, system operation maintenance personnel and marketing personnel, and the system is safe, reliable, flexible, strong in operability, high in training efficiency and good in effect.

The invention relates to a high-rotation speed and large-torque brake motor test bench. The motor shaft of a driving motor is connected with one end of a load rotation shaft through a first electromagnetic clutch; the other end of the load rotation shaft is connected with a motor to be tested through a coupling; a speed testing sensor, load flywheel discs and a torque sensor are sequentially connected onto the load rotation shaft from the driving motor to the motor to be tested; a variable-frequency and variable-speed motor is adopted as the driving motor; and the driving motor is connected with the load flywheel discs through the electromagnetic clutch. In the operating process of the system, dynamic disconnection can be realized, so that the influence of the kinetic energy of the rotor of the driving motor on a test can be eliminated; a computer transmits signals to a PLC according to rotational inertia required by the test, so that the electromagnetic clutch mechanism can be controlled. The maximum torque of the test bench can reach 2000N*m, and the maximum rotation speed of the test bench can reach 3500rpm. In the design process of the system, a computer control system simple and easy to operate is adopted, and a safe and reliable PLC interlocking detection system is adopted; and output data are processed by the computer, and an intuitive curve graph can be drawn, and therefore, the analysis research of product performance can be facilitated.

The present invention provides a combined rotating machinery complex failure diagnosis and test device. The surface of the base (8) is provided with T-shaped grooves with the required number. A plurality of brackets (7) which are independent from each other are installed on the base (8) through the T-shaped grooves. The brackets (7) is provided with an electric motor (1) and a device which is driven by the electric motor and can combine various failures through the moving and transposition of the brackets (7) in the T-shaped groove. Three T-shaped grooves which are arranged parallelly and have same magnitude and shape are provided. The electric motor (1) is connected with a component wherein through a coupling (6), and the components are connected with each other with the coupling (6). The components comprise a test shaft (2), a gear box (3), a transition bearing support (4) and a load (5). The invention can provide a single failure and multiple complex failures for executing diagnosis test. Several hundreds of working states can be executed with raw data collection, analysis and research. The test device has the advantages of simple structure, intuition, convenient assembly, without damage in loading and unloading, accurate data and the like. The operability of the failure diagnosis test is greatly increased.

The invention relates to a fluorescent dyeing method for observing the microstructure of plants, which can effectively solve the problem of rapid film production and observation of the microstructure of plants. , the plant material was fixed in paraformaldehyde or methanol with a mass concentration of 4% configured by pH 8.0 PBS buffer solution for 20-40min, rinsed with pH 8.0 PBS buffer solution for 10-20min, and prepared by DMSO, Triton X-100 and fluorescent whitening agent 220 make staining solution, stain at room temperature for 10-60min, then rinse with PBS buffer for 10-15min, add DAPI solution dropwise for fluorescent staining of nucleic acid in cells, rinse with distilled water, and then add dropwise Glycerin, add a cover glass, observe and take pictures with a laser confocal microscope, the method of the present invention is simple, does not need a microtome, and the production time is short, and the three-dimensional structure of the plant can be observed, which is suitable for the observation of cells or tissues of various plants, clear , accurate, low cost and good effect.

The invention relates to a technology for processing active sludge of urban sewage, wherein a computer and corresponding operation system are used as a platform for executing a simulation software for forecasting efficiency of active sludge treatment and analyzing working conditions based on various technological parameters, the simulation software comprises a mode selection module, a basic data module, a computational condition module, a computation module, a result output module and an auxiliary function module.

The invention relates to a rail vehicle body structure large-size component fatigue test method and device. A finite element model simulation technology is utilized to simulate test conditions of a vehicle body structure member to be tested under the fatigue state of the whole vehicle so that steps of test loading conditions of the vehicle body structure member to be tested are confirmed; and corresponding loads are applied to the vehicle body structure member to be tested according to the test loading conditions obtained in the last step, and fatigue strength is detected. The method combining simulation analysis and test is adopted, and welding seam fatigue strength of stainless steel vehicle body structure large-size components like a side wall is rapidly and accurately tested so that operation is simple and feasible. With application of the test technology, accurate detection data can be provided, large amounts of real and effective test data can be accumulated, and analysis and research of vehicle fatigue safety and reliability are facilitated so that powerful basis is provided for vehicle fatigue safety and reliability.

The invention discloses a method for expanding the dynamic mechanical test data of a viscous-elastic material out of test frequency. The data comprises complex modulus, energy storage modulus and loss modulus. The method comprises the following steps of: determining parameters alpha, beta, E0 and E infinite and optimum values of the alpha, the beta, the E0 and the E infinite by fitting the test data; substituting frequency parameters of a same temperature point into a formula, and determining corresponding relaxation time by fitting the data of the energy storage modulus; and then adjusting angular frequency and expanding the data from low frequency to high frequency. By the method, an error caused in data translation process when the conventional principal curve model processes the dynamic mechanical test data of the viscous-elastic material can be avoided; modulus data and loss factor data are processed simultaneously, so an internal relation between the modulus data and the loss factor data is maintained; and the test data of the dynamic mechanical performance of the viscous-elastic material can be expanded to the low frequency and the high frequency.

The invention discloses an unmanned aerial vehicle Gobi Desert soil sampling system. The system comprises an unmanned aerial vehicle subsystem and a ground monitoring subsystem; the unmanned aerial vehicle subsystem comprises a GPS (Global Position System) positioning module, an obstacle avoidance module, a course control module, a soil sampling module, and an onboard radio frequency communicationmodule; the ground monitoring subsystem is in communication connection with the onboard radio frequency communication module, and used for receiving location data transmitted by the onboard radio frequency communication module and processed image data, and monitoring the flight path of the unmanned aerial vehicle. A soil sampling function of the unmanned aerial vehicle is realized through the soil sampling module in the unmanned aerial vehicle subsystem, the flight path control module performs accurate regulation on the flight path of the unmanned aerial vehicle according to the data detectedby the GPS positioning module and the obstacle avoidance module, the stable security of the unmanned aerial vehicle in the sampling process is ensured, the accuracy and reliability in the sampling process of the unmanned aerial vehicle are ensured, the intelligent sampling is realized without field operation of the technicist, and the personal security of the technicist in the soil sampling process of the Gobi Desert region is ensured.

The invention discloses a longitudinal sliding test method for eliminating the longitudinal force deviation of a tire and belongs to the field of experimental research of dynamic characteristic tests of tires. According to the longitudinal sliding test method for eliminating the longitudinal force deviation of the tire, the slip rate in the test process is controlled through the effective rolling radius when the rolling resistance of the tire is zero, the relation curve of the longitudinal force of the longitudinal sliding characteristic of the tire and of the slip rate passes through the point (0, 0), when a tire empirical or semi-empirical longitudinal force model is built through test data without longitudinal force deviation, horizontal deviation and vertical deviation do not need to be considered in the model, model parameters are reduced so that tire modeling can be simplified, and meanwhile, analysis and research of the test data are facilitated.

The invention provides a separation method for light / heavy hydrocarbons in different occurrent states in a clay level of an argillaceous source rock. The separation method comprises the following steps: crushing a fresh part of a core of the argillaceous source rock and soaking and extracting a clay level component; carrying out Soxhlet extraction; saponifying the extraction residues by using a saponifying liquid and respectively extracting the saponified residues by using n-pentane and dichloromethane; pickling the saponified residues by using an acidolysis solution and respectively extracting the pickled residues by using n-pentane and dichloromethane; treating the pickled residues by a HF and HCl mixed liquid and respectively extracting the pickled residues by using n-pentane and dichloromethane; and respectively combining the treatment liquids and the extraction liquids and separating by column chromatography to obtain light / heavy hydrocarbons. The separation method for light / heavy hydrocarbons in different occurrent states in the clay level of the argillaceous source rock provided by the invention extremely improves the problem that light hydrocarbons are lost in other methods and can calibrate an occurrent space of hydrocarbons by combining mineral analysis.

The invention belongs to the field of data measurement, and particularly relates to a method of generating a human body three-dimensional data model library, so as to solve problems that data in the existing database are imperfect, the acquisition range is small, the acquisition is single, and the data accuracy is poor. The method comprises the following steps: 1) a human body three-dimensional virtual model library is built; 2) the weight and the offset of a virtual model posture label are obtained through learning; 3) a PCA main feature value is acquired; and 4) the model data are calculated. The method can build the human body database in a low cost, high precision and high efficiency mode, the measurement time can be greatly shortened, the measurement precision and the efficiency are improved, and the posture trend of the human body can be evaluated.

The invention relates to a label processing method and device, electronic equipment and a storage medium. The method comprises the steps of obtaining an original topic label for a target object in aninformation sharing platform, determining a to-be-verified topic label from the original topic label, performing webpage searching on the to-be-verified topic label, and finally extracting a target topic label from the to-be-verified topic label according to a searching result obtained by the webpage searching. Via the above method, nonstandard topics which are not suitable for research are effectively filtered out from the original topic labels; the method is simple and feasible, reduces the workload of technical personnel, improves the extraction efficiency of the topic labels, enables technical personnel to analyze and study the extracted target topic labels and further master the hot spot concerned by a user so as to better serve the user.

The application provides an acoustic measuring multi-tube sampling device. The device comprises a lifting lug, a mounting bracket, a counterweight block group, a collecting box, a power supply box, asampling tube group and an acoustic measuring probing rod group. An on-site acoustic measuring instrument is combined with the multi-tube sampling through the mounting bracket, and supplemented by thecounterweight block group, the collecting box and the like, so that the on-site acoustic measurement can be performed while the multi-tube sampling of sediments is performed. At the same time, the multi-tube sampling is used, so that multiple sediment data can be acquired, and different physical and mechanical measurement requirements can be met. The on-site acoustic measurement and multi-tube sampling of the sediments at a same research site are realized, thereby greatly facilitating the comprehensive research of the on-site measurement and laboratory analysis of the sediments.

The invention discloses a normalized cDNA library of ocean medaka specific tissues and a preparation method thereof, belonging to the field of cDNA libraries. The library is prepared from one or more specific tissues of ocean medaka. The preparation method of the normalized cDNA library comprises the following steps: extracting total RNA of the specific tissues of the ocean medaka, synthesizing cDNA polynucleotide products, re-hybridizing after cDNA denaturation, selectively degrading double-stranded components, amplifying normalized cDNA components through PCR and inserting amplified products in carriers. The normalized cDNA library of ocean medaka specific tissues lays a foundation for greatly finding and researching the expressing genes of the ocean medaka, and is of a great significance to the deep research on the expressing markers of the ocean medaka specific tissues.

The invention relates to the technical field of sports equipment, and specifically relates to a posture detection adjusting device and method based on assistance of computer science. The posture detection adjusting device based on assistance of computer science comprises a plurality of data collection devices, a controller and a feedback device, wherein the plurality of data collection devices are arranged in the designated position range of a human body and are used for collecting the posture data at the designated positions; the controller is used for acquiring the data collected by the data collection devices and processing the data and generating feedback signals; the feedback device is used for receiving the feedback signals generated from the controller and generating feedback motions; and both the data collection devices and the feedback device are in signal connection with the controller. The posture detection adjusting device can preferably help beginners to enable their postures of motion to be more standard.

The invention relates to a hand-held quick corrosion tester for petroleum pipelines. The technical scheme is as follows: the signal input ends 3a, 3b of a data collecting unit (3) are correspondingly connected with the output end 2a of a LI-ION battery electric quantity detecting module (2) and the output end 1a of a corrosion sensor (1), and the I / O interface of a singlechip (6) is respectively connected with the ports of the data collecting unit (3), a TFT (thin film transistor) color screen (4), a PC computer (5), a GSM (Global System for Mobile Communications) / GPRS (General Packet Radio Service) module (7), a clock module (8), a keyboard module (9), an electronic tag (10) and a data storage unit (11). The hand-held quick corrosion tester provided by the invention has the advantages of being smart and portable, capable of continuously working for a long time and automatically identifying testing points, high in test response speed, sensitive, accurate in test result, rich in man-machine interface, strong in operability, available for a plurality of storage manners and large in storage capacity, and the testing data are stored in a spreadsheet format and the collected data are remotely transmitted in real time, so that the hand-held quick corrosion tester is suitable for field corrosion detection of petroleum pipelines.

The present invention discloses a method of producing a carbon fiber sample for Raman spectrum test. The method is characterized by comprising the steps of: applying glue onto a silicon wafer, winding a bundle of carbon fiber yarn onto the positions coated with glue on the silicon wafer, so as to form a row of carbon fiber yarns; applying glue on the carbon fiber yarns, and gluing an accompany piece respectively on the opposite sides of the region wound with carbon fiber yarns; placing the silicon wafer in a mold, clamping, heating, curing, and cooling to room temperature; cutting the cured sample along a direction perpendicular to the direction of the carbon fiber yarn bundle by a diamond wire cutting machine to obtain a cross-sectional sample; or cutting the cured sample with a diamond wire cutting machine along the direction parallel to the carbon fiber yarn bundle to obtain a profile sample; and grinding the sample to prepare cross-sectional carbon fiber sample or profile carbon fiber sample. The present invention provides a rapid method for preparation of carbon fiber sample, and the obtained carbon fiber sample is smooth, flat, easy to apply to study of a skin-core structure of carbon fiber in Raman spectrum test, so as to a comprehensively understand the information structure of carbon fibers.

The invention relates to the metal plastic processing field, in particular to a stress monitoring and early warning method and system for a prestress ring of a cold extrusion mold. The system consists of a strain foil, a bridge box, a dynamic strain meter, an industrial computer, a feedback control switch and an alarm. By implementing the stress monitoring and early warning method and system for the extrusion mold, the strain value and the strain situation of the prestress ring of the mold can be measured in real time, the goal of monitoring the prestress ring of the mold in real time can be achieved by presetting a stress safety value, the problem that the mold and the prestress ring are apt to be ruptured under stress because of too high load is solved, and the safety problem which is caused when the mold and the prestress ring are ruptured because of stress rupture is avoided.

The invention discloses a hemodialysis information management system, method, computer equipment and a storage medium; the method comprises the following steps: receiving visit card information and inspection information of inspection instruments; storing corresponding data according to a verification result; distributing time (from less to more) to patients that have swiped cards in sequence according to the residual time; checking warehouse-in / out consumables and medicines, and sending the information to a cost management module in the same time; storing various types of information and a specialist doctor advice database; reminding that the hemodialysis equipment needs maintenance according to the hemodialysis equipment index information and maintenance information, and sending an alarmwhen physiology indexes exceed a setting scope; sending reminds when the warehouse consumables and medicines are lower than a set limit; calculating warehouse-in / out cost, calculating the equipment maintenance cost according to the equipment maintenance information, and calculating a visit cost list of the patient; distributing usage personnel authorities. The method and system can be conveniently used in the hemodialysis department, thus facilitating various work items of the hemodialysis department.

The aperture size measurer consists of two parts of hardware and software, its hardware includes power source connected to photocoupling sensor, shadow mask slot, magnifying glass, photocoupling sensor, image card and industrial control computer comprising keyboard, hard disc, mouse, display, printer and software program. The measuring process includes calibration, automatic measurement and manual measurement. The present invention can measure the length size between any two points in the collected image with measurement error less than 2 mm, and the measurement results may be displayed, printed and stored.

The invention discloses a method for establishing a grid frequency response equivalent model considering wind power fluctuation. The model is established by using the inertia time constant, governor response time and governor sagging coefficient of the traditional unit. The method includes three steps as 1) ignoring the power network structure, establishing a synchronous unit equivalent model according to inertia time constant of a traditional generator set, equalizing the governor structure as a first-order inertia link, connecting the link into a synchronous machine equivalent model, and constructing a complete power system frequency response equivalent model; 2) simplifying the wind power output to a sinusoidal output, and obtaining the system frequency change rule under the wind powerfluctuation; 3) utilizing the sinusoidal output of the wind turbine to carry out the parameter identification of the equivalent model. The invention realizes the establishment of the equivalent modelof the frequency response of the power system under the condition that the wind turbine is under the grid-connected operation. The influence of the wind power fluctuation on the system frequency is considered, so that the model can be applied to the system of the wind power under the grid-connected operation.

The invention discloses a mental load detection method and system and related equipment. The method comprises the steps: after it is detected that a subject completes a preset test task, measuring thebrain of the subject through electroencephalogram test equipment, and acquiring electroencephalogram signals in M channels through the electroencephalogram test equipment; measuring the forehead areaof the subject through a functional near infrared spectrum to obtain a functional near infrared spectrum signal of the forehead area; processing the electroencephalogram signal of each channel to obtain a first characteristic parameter of the electroencephalogram signal in each channel; processing the functional near infrared spectrum signal to obtain a second characteristic parameter of the functional near infrared spectrum signal; and determining the mental load level of the subject for the mental load level according to the first characteristic parameter of the electroencephalogram signalin each channel and the second characteristic parameter of the functional near infrared spectrum signal. According to the method, online detection of mental loads is achieved, and detection of the mental loads is more accurate.

The invention provides a fabric defect detection device comprising a fabric winding mechanism used for tensioning fabric; an image collection device arranged above the fabric winding mechanism and used for capturing the fabric surface image information of the fabric; a lighting device with an adjustable angle arranged above the fabric winding mechanism and used for illuminating the fabric; and animage processing module used for acquiring the fabric surface image information collected by the image collection device, and used for processing and analyzing to acquire a fabric defect detection situation. By using the fabric defect detection device provided by the invention, the defect on the fabric can be effectively monitored, the angle of the illuminating device can be adjusted, and the fabric can maintain a certain amount of tension via adjusting a roller; meanwhile a display screen is configured, so that the detected defect can be clearly and visually displayed on the screen, so as tobe convenient for related technical staff to analyze and research; via a machine vision system, the textile defect detection accuracy is improved, the detection is sped up, the labor cost is reduced,the operation is simple, and the production efficiency of the textile workshop can be effectively improved.

The invention discloses a typhoon disaster observation tower for transmission lines. At present, there is no actual observed data on the process in which typhoon acts on an actual transmission line tower, and there is no data support for anti-typhoon work in the transmission line design, construction, operation and other links. The typhoon disaster observation tower for transmission lines comprises a transmission line tower which is equipped with a video monitoring device, a mobile communication unit, a photovoltaic cell system, a micro meteorological monitoring unit, a tower material stress monitoring unit, and a power supply control system. The power supply control system supplies power to the tower material stress monitoring unit, the micro meteorological monitoring unit and the video monitoring device. The tower material stress monitoring unit, the micro meteorological monitoring unit and the video monitoring device transmit monitoring signals to the mobile communication unit. The typhoon disaster observation tower for transmission lines can provide a test platform for the research on the damage mechanism of tower materials under typhoon wind load, and accumulate monitoring data for the anti-typhoon work in the transmission line tower design, construction, operation and other links.