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 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 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 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 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 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 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 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.