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206results about How to "True reaction" patented technology

Apparatus for obtaining water quality information, method and system for recognizing water body eutrophication degree

The present invention discloses an apparatus for obtaining water quality information, a method ans system for recognizing water body eutrophication degree. The apparatus includes LED lamps arranged around a filter uniformly for emitting given wavelengths; a filter for blocking light beams except the given wavelengths to collect an optical image; and a CCD light sensor for transforming the opticalimage transmitted to the surface of the CCD light sensor into an electric signal. The technical scheme of the invention is capable of rapidly, high efficiently and conveniently obtaining images with high space resolution and high time resolution, and implementing multidata monitoring and evaluation of the water body entrophication by processing and analyzing the image. The cost of the apparatus islow, and operation is convenient. The invention is capable of replacing laboratory analysis methods or providing assistant support for the laboratory analysis methods, arranging sampling points reasonably and reducing the usage of chemical agents, and overcoming abuses caused by collecting data using remote sensing satellites.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS

Internet-of-things-based mining dynamic real-time monitoring method and system

The invention discloses an internet-of-things-based mining dynamic real-time monitoring method and system. The system comprises a mine original model construction module, an underground mining activity trajectory coordinate acquisition module, an underground mining activity trajectory coordinate filtration module, an actual mining range automatic forming module and a reserve model dynamic construction module. According to the method, an internet-of-things technology is utilized, underground real-time mining trajectory data is acquired, null spots in original gob and roadway are eliminated by using a mode that the graph and expression in geometry math are combined, then a convex model is constructed in combination with effective point data and solid Boolean operation is performed in combination with an ore body block-section model constructed by original check information, and meanwhile related ore body block-section reserve information is associated. By using the method and the system, a mine underground real-time mining condition can be conveniently monitored by a mine supervision department, a mine enterprise can also browse the underground actual mining condition, a mining plan is formulated, rational personnel distribution and scheduling are realized, and effective utilization of resources is realized.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN) +1

Device for detecting positioning accuracy of surgical operation navigation system and method

The invention discloses a device for detecting positioning accuracy of a surgical operation navigation system. The main body of the device is a sealable cylinder, comprising a base, a detachable upper lid and a detachable head die. The base comprises a pedestal, an outer cover and a plurality of organic glass rods. The pedestal is provided on the bottom surface of the base and a plurality of organic glass rods of different lengths are provided on the pedestal. The outer cover which is provided on the side of the base is bonded on the pedestal, and a plurality of organic glass rods of the same length are provided on the cover. The detachable upper lid comprises a sealing lid, a connecting bolt and a water injection hole screw. The connecting bolt is provided in the center of the sealing lid for screwing the upper lid. The water injection hole screw which is used for injecting water is provided beside. The upper lid is contacted and is fixed with the base. The detachable head die is fixed on the pedestal of the base and inside the outer cover of the base. The invention further discloses a detecting method of the device. According to the invention, not only point registration accuracy but also surface registration accuracy can be detected, which promotes higher and more real detection accuracy.
Owner:UNIVERSAL ENTERPRISES GRP CO LTD

Scene perception system and method for digital twin workshop

The invention relates to a scene perception system and method for a digital twin workshop. The scene perception system comprises a data acquisition module, a scene perception module and a data miningmodule which are sequentially connected. The data acquisition module is used for acquiring numerical control workshop information data. The scene sensing module is used for preprocessing the numericalcontrol workshop information data acquired by the data acquisition module. Constructing a numerical control workshop body model, constructing a hierarchical relationship among the data, eliminating contradiction information through ontology reasoning detection, and loading the previously stored preprocessed data into the numerical control workshop body model to realize instantiation of the numerical control workshop body model. And the data mining module is used for mining potential association in the data by operating a mining algorithm required by a user. According to the method, the sceneperception technology and the ontology modeling technology are utilized, the problems of big data and small information existing in the manufacturing process are solved, the digital twin workshop model is updated in real time, and the method can serve as a basis for subsequent operation such as fault prediction and target optimization.
Owner:SHANDONG UNIV

Torque motor torque fluctuation coefficient detector and detecting method

The invention relates to a torque motor torque fluctuation coefficient detector and a detecting method and belongs to the technical field of torque motor torque fluctuation measurement. The torque motor torque fluctuation coefficient detector and the detecting method solve the problems that during the process of measuring force from a stator to a sensor, existing torque motor torque fluctuation coefficient detectors are unreliable in detected results due to gravity interference of the stator. The detector comprises a dynamometer, a calibration assembly, a first coupler, a torque motor to be measured, a chuck mechanical arm, a load bearing, a second coupler, a position adjusting base, a stepping motor, a stabilizing base, a singlechip and a computer. The detecting method comprises the steps of firstly performing initial calibration; then adjusting the chuck mechanical arm to firmly clamp a stator of the torque motor to be measured; powering up the torque motor to be measured to enable the torque motor to be measured to generate torque, then enabling the torque motor to be measured to be under a lock rotor state; and finally driving the stator of the torque motor to be measured by the stepping motor to rotate a circle, synchronously collecting torque signals, and outputting the torque signals to the computer. The torque motor torque fluctuation coefficient detector and the detecting method are suitable for detection of torque motor torque fluctuation coefficients.
Owner:HARBIN INST OF TECH

Two-stage optimization scheduling method supporting source-network-load-storage multivariate ubiquitous coordination

The invention relates to a two-stage optimization scheduling method supporting source network load storage multivariate ubiquitous coordination. The method comprises the following steps: 1, a day-ahead stage: predicting next-day data according to historical data and a load uncertainty model considering demand side management; 2, taking low-carbon economy as a target, considering a deep peak regulation working condition and a normal operation working condition of the thermal power generating unit, carrying out random sampling by utilizing a Monte Carlo method, and solving a day-ahead low-carboneconomy scheduling model by utilizing a hybrid bat algorithm to obtain a low-carbon economy scheduling model; 3, in the intra-day stage, according to the ultra-short-term prediction values of the wind power plant and the photovoltaic power station and the intra-day system load considering the day-ahead price demand response, based on an intra-day thermal power generating unit correction model andan intra-day low-carbon economic dispatching model, determining the unit start-stop combination and the price and price type demand response quantity of each time period; and solving and adjusting the day-ahead scheduling plan by using a hybrid bat algorithm. The low-carbon economic dispatching of the power system is realized, the local optimum in a high-dimensional condition is effectively avoided, and the global optimal solution is quickly obtained.
Owner:ELECTRIC POWER SCI & RES INST OF STATE GRID TIANJIN ELECTRIC POWER CO +2

Novel axle fatigue testbed

The invention discloses a novel axle fatigue testbed, and relates to the technical field of locomotive vehicle testing. The testbed comprises a base, a foundation bed, a rail wheel, an experiment wheel pair fixator, a first actuator and a second actuator, wherein the rail wheel is arranged on the foundation bed; the experiment wheel pair fixator is erected to the base and is used for installing atested wheel pair; the first actuator is arranged along a vertical direction and is used for applying a vertical load to the tested wheel pair; the foundation bed can be arranged on the base in a sliding way, and the slideable direction of the foundation bed is arranged along the axial direction of the spindle of the rail wheel; the second actuator is also arranged along the axial direction of thespindle of the rail wheel; and the first actuator is connected between the base and the foundation bed and is used for applying a lateral load to the tested wheel pair. By use of the testbed, load transfer accuracy is greatly improved, a true load effect can be more accurately reflected, and a fatigue test result is more accurate and reliable.
Owner:成都西交智众科技有限公司

Optical and electrical combined monitoring apparatus and method in optical transmitting network

The invention relates to an electric and optical combination monitor device and the method thereof. The device includes an optical line selector, an optical channel selector, an optical power splitter, an electric layer performance monitor device, an optical layer performance monitor device and a micro controller. Wherein, the optical line selector is used to select the line to be monitored from a plurality of optical fiber lines; the optical channel selector is used to select the optical channel to be monitored from the optical line; the optical power splitter is used to split the optical channel signal into two parts, one of which enters into the electric layer performance monitor device for electric layer performance monitoring, the other of which enters into the optical layer performance monitor device for optical layer performance monitoring; the electric layer performance monitor device is used to monitor the overhead of OUT and ODU; the optical layer performance monitor device is used to monitor the optical power, wavelength, optical signal to noise ratio and other related optical parameters; the micro controller controls the optical line selector and the optical channel selector according to the network management command, and analyzes and processes the data gathered form the electric layer and optical layer, then reports to the network management system.
Owner:FENGHUO COMM SCI & TECH CO LTD

Real-time microscopic traffic simulation system and method based on virtuality and reality mixing

The invention discloses a real-time microscopic traffic simulation system based on virtuality and reality mixing. The system comprises a simulation server which is used for rendering and displaying aglobal traffic simulation scene, a number of automobile driving simulators which are used for controlling the motion of a simulated vehicle to provide a simulation server with the data information ofthe currently controlled simulated vehicle and display a local traffic simulation scene, and a traffic simulation display platform which is connected with the simulation server to display the currenttraffic situation. The invention further discloses a real-time microscopic traffic simulation method based on virtuality and reality mixing. According to the invention, the system and method have theadvantages of simple structure and reasonable design; the operation of the simulated vehicle controlled by a real driver participates in the traffic flow of traffic simulation; the driving behavior and driving habit of the real driver are reflected in traffic simulation, so that the whole traffic flow is closer to the real traffic situation; and the system and method have the advantages of easy use and operation, high practicability, good use effect and easy promotion and use.
Owner:CHANGAN UNIV

A converter station sound field simulation method and system

ActiveCN109670257ASolve the problem of inaccurate sound source assignmentImprove accuracyDesign optimisation/simulationSpecial data processing applicationsSound sourcesEngineering
The invention discloses a converter station sound field simulation method and system, and the method comprises the steps of collecting and obtaining a noise signal of a to-be-tested sound production device of a converter station in a preset time based on a sound source positioning extraction method, and carrying out the calculation, and obtaining an actual measurement sound pressure value of a predetermined position of the to-be-tested sound production device; modeling the to-be-tested sound production equipment through noise prediction software; presetting the sound power of the to-be-testedsound production equipment; simulating to obtain a simulated sound pressure value of the preset position of the to-be-tested sound production equipment; calculating a difference value between the simulated sound pressure value and the actually measured sound pressure value; if the difference value meets the preset convergence condition, completing sound field simulation; if the difference does notaccord with the preset convergence condition, adjusting the sound power of the to-be-tested sound production equipment; and assigning the real value to the model for sound field simulation. The method and the system can improve the sound field simulation accuracy of the converter station, and can be applied to noise standard exceeding responsibility division and noise treatment scheme verification of the extra-high voltage converter station.
Owner:STATE GRID CORP OF CHINA +2

Steer-by-wire system and control method thereof

The present disclosure relates to a Steer-By-Wire system including: a torque sensor configured to sense torsion bar torque generated when the driver operates the steering wheel; a steering angle sensor configured to sense a steering angle of the steering wheel; a reaction motor configured to provide reaction force in a direction opposite an operating direction of the steering wheel; a state variable estimator configured to receive information on the torsion bar torque and the steering angle and configured to estimate a plurality of state variables from which disturbances have been removed; and a reaction controller configured to determine a reaction torque to be output from the reaction motor using the plurality of state variables estimated by the state variable estimator, and further relates to a control method thereof. Accordingly, it is possible to accurately recognize the driver's steering intention.
Owner:HL MANDO CORP

Computer-based dance movement judging method

The invention discloses a computer-based dance movement judging method, which comprises the following steps of: setting a tracking point on a human body and acquiring spatial position data of the tracking point at different moments in the human dance movement process; calculating corresponding movement data of the tracking point based on the requirement of movement to be judged; judging the dance movement according to standard movement data and judgment standard thereof and the calculated movement data; and performing output prompt on the judged result. By using the method, the movement track can be timely recorded based on acquired spatial position information of each tracking part at each moment in the human dance movement, whether the dance movement is standard is judged, and the condition of the human dance movement is more really reflected.
Owner:SHENZHEN TAISHAN SPORTS TECH CO LTD

Manufacturing method for multilayer-uneven-structure brain hematoma model

The invention relates to a manufacturing method for a multilayer-uneven-structure brain hematoma model, and belongs to the technical field of biomedicine. The manufacturing method includes the following steps that S1, human-body brain data is scanned through nuclear magnetic resonance to obtain three-dimensional structure data of the skull surface, three-dimensional structure data of the grey matter surface and three-dimensional structure data of the white matter surface; S2, the three-dimensional data of the skull, the three-dimensional data of the grey matter and the three-dimensional data of the white matter are led into 3dsmax to be merged, subjected to model detail reducing and shell adding treating; S3, the model is manufactured according to the data obtained in the S2; S4, cavities corresponding to tissue are filled with corresponding simulation materials, namely, materials with the dielectric constant and the electric conductivity equal to corresponding tissue, and manufacturing of the model is completed; S5, a small rubber bag is arranged in the model, an injector is connected with the small rubber bag arranged in the brain model through a plastic conduit, and the volume of blood in the rubber bag is adjusted to simulate variation of hematoma. According to the manufacturing method, manufacturing is convenient, the result of electromagnetic waves passing through the multilayer-uneven-structure brain can be really responded, the actual condition of brain hematoma can be really simulated, and the manufacturing method can be used in the brain hematoma monitoring technology based on electromagnetism.
Owner:CHONGQING UNIV
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