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92results about How to "The solution steps are cumbersome" patented technology

Method for measuring shearing area of rock structral plane in direct shear test

The invention provides a method for measuring shearing area of a rock structral plane in a direct shear test. The method comprises the following steps of: collecting an image; cutting and filling the image; converting the image into a grayscale image; selecting a gray threshold according to the obtained grayscale image of the rock structral plane; converting the grayscale image of the rock structral plane into a black and white binary image on the basis of the selected gray threshold; calculating percentage, namely percentage of the shearing area of the rock structral plane in the direct shear test, of the area of a white part in the area of the whole image; figuring out total actual area of the rock structral plane through using a graduated scale adopted during shooting as a reference object; and figuring out the shearing area of the rock structral plane in the direct shear test. According to the invention, defects of complicated operation, complicated steps, low working efficiency, large manual error and the like in the traditional measuring method can be solved; moreover, as the operation is simple, an important practical significance is obtained in reducing workloads of geologists, improving measuring accuracy and increasing working efficiency; meanwhile, as lower cost is achieved, the method for measuring the shearing area of the rock structral plane in the direct shear test, provided by the invention, is easy to be popularized.
Owner:中部知光技术转移有限公司

Implementation method of avionics fault diagnosis system for airborne route maintenance

The invention discloses an implementation method of an avionics fault diagnosis system for airborne route maintenance. According to the method, a Bayesian network is used as a framework to establish afault diagnosis model, and diagnosis analysis is carried out by combining a joint tree algorithm, so that the limitation of low efficiency of traditionally eliminating faults by inquiring a maintenance manual is solved, the dependence on actual experience of maintenance personnel is reduced, and the reasoning efficiency is improved; strong association rules of historical maintenance data are mined by using association rules, and parameter learning is carried out by combining expert experience, so that the limitation that traditional methods only depend on expert experience is solved, and thehistorical maintenance data are fully utilized; maintenance information of each member system is obtained in real time, the maintenance information and fault information input by maintenance personnelthrough a man-machine interaction window are used as observation evidences together, the observation evidences are input into the fault diagnosis model to update posterior probability distribution inreal time, and the dynamic diagnosis process of airborne route maintenance is achieved. The accuracy of fault diagnosis is improved, and a certain theoretical basis is provided for the design of a domestic airborne maintenance system.
Owner:CIVIL AVIATION UNIV OF CHINA

Internet of Things equipment access method and device based on multi-protocol adaptation

The invention discloses an Internet of Things equipment access method and device based on multi-protocol adaptation. The method comprises the steps that an access gateway detects whether target Internet of Things data sent by target Internet of Things equipment is received or not; when a detection result is yes, the access gateway judges whether a target protocol matched with the target Internet of Things equipment exists in a pre-stored protocol library or not; if yes, the access gateway calls the target protocol to execute a data analysis operation on the target Internet of Things data to obtain a data analysis result; the access gateway performs an encapsulation operation on the data analysis result according to a predetermined data encapsulation format to obtain a data encapsulation result; and the access gateway sends the data encapsulation result to an Internet of Things platform. It can be seen that according to the invention, data docking between the Internet of Things equipment and the Internet of Things platform can be completed based on the multi-protocol adaptive access gateway, so that the problems of high research and development difficulty and tedious steps for realizing data docking operation caused by multiple protocols and high adaptation difficulty of the Internet of Things equipment can be solved, and the data docking efficiency and the expandability of a system are improved.
Owner:GUANGDONG PLANNING & DESIGNING INST OF TELECOMM

Rapid detection device for trace explosives and drugs

The invention discloses a rapid detection device for trace explosives and drugs and belongs to the technical field of explosive detection. The device comprises a capillary tube integrated plate and acolor developing array plate; a plurality of capillary tubes are arranged on the capillary tube integrated plate; the first end portions of the capillary tubes on the capillary tube integrated plate are inserted into a to-be-detected liquid; the to-be-detected liquid contains a suspicious chemical substance; the color developing array plate is arranged at the upper part of the capillary tube integrated plate; the second end portions of the capillary tubes are arranged on the color developing array plate; and the second end portion of each capillary tube is provided with a color developing block; each color developing block is filled with a color developing reagent; the capillary tubes are used for conveying the to-be-detected liquid sucked from the first end portions to the second end portions and making the to-be-detected liquid permeate into the color developing blocks; and the color developing reagent in the color developing blocks and the to-be-detected liquid can undergo a chemical color developing reaction, so that chemical components in the to-be-detected liquid can be identified and displayed. The device has the advantages of simple and convenient operation, relatively low price, convenient and sensitive detection, and capability of realizing the on-site rapid detection and analysis of suspected explosives and drugs.
Owner:QINGHAI UNIVERSITY

Temperature-controlled soil continuous grinding and screening device

The invention relates to a temperature-controlled soil continuous grinding and screening device, which is characterized in that a feeding hopper is arranged at the top of a double-layer composite shell, the lower nozzle of the feeding hopper is connected to the central hole of a umbrella-shaped fixed grinding disc, the lower part of the umbrella-shaped fixed grinding disc is provided with an umbrella-shaped dynamic grinding disc opposite to each other, a discharge elbow is connected to the bottom discharge opening of a material-falling bin, and an inclined screen cylinder is connected to the pipe port of a discharging elbow via a bearing bayonet; a collection box is arranged below the barrel body of the screen cylinder, a multi-stage conveyor belt is arranged in a double-layer composite shell to transport materials layer by layer upwards, the bottom layer belt of the multi-stage conveyor belt extends to the position below the particulate discharging port of the screen cylinder, and thetop belt of the multi-stage conveyor belt extends to the bypass discharge port of a feeding hopper. The temperature-controlled soil continuous grinding and screening device solves the problems of complex steps and low processing efficiency existing in current laboratory soil treatment, effectively overcomes various interference factors in a soil grinding process, and improves the reliability of the research data and the research results.
Owner:INST OF HYDROGEOLOGY & ENVIRONMENTAL GEOLOGY CHINESE ACAD OF GEOLOGICAL SCI

A thermal plasma arc flame generator

InactiveCN102271452AGood induction arc guidanceSimplify ignition stepsPlasma techniqueHeat flowElectric arc
The invention belongs to the technical field of high-frequency induction thermal plasma. Aiming at the problems existing in current high-frequency induction thermal plasma generation devices, such as difficulty in ignition, poor working stability, high arc maintenance power, and low efficiency, the invention provides a thermal plasma arc flame generator. The present invention includes a laminar arc thermal plasma generator [1] and a high-frequency induction thermal plasma generator [2], which is characterized in that it is injected along the central axis [5] of the high-frequency induction thermal plasma generator [2] The laminar arc thermal plasma jet [3] plays the role of arc guidance, arc maintenance and induction enhancement of the high-frequency induction thermal plasma flame [4]. The laminar arc thermal plasma jet [3] has the advantages of long jet length, small fluctuation of flow field parameters, almost no entrainment of ambient gas, long length of high temperature zone, and small axial gradient of parameters such as temperature. Adopting the technical scheme of the present invention can solve the problems of difficult ignition and easy arc breaking of the high-frequency induction thermal plasma generator, reduce the operating frequency and arc maintenance power of the high-frequency induction thermal plasma generator, and increase the Efficiency facilitates the development of higher power high-frequency induction thermal plasma generators.
Owner:四川金虹等离子技术有限公司

Special tool for power-cut or live replacement of 220kV spacer

The invention discloses a special tool for power-cut or live replacement of a 220kV spacer. The tool is characterized by comprising an upper hook and a lower hook, wherein a labor saving screw is respectively connected between the upper hook and the lower hook in a screw-thread fit manner; hook ends of the upper hook and the lower hook are respectively connected to a trigger locking hook; after trigger devices trigger, locking devices lock the trigger locking hooks, so that the upper hook and the corresponding trigger locking hook are closed to form a round structure, and the lower hook and the corresponding trigger locking hook are closed to form a round structure; one side of the upper hook is fixedly connected to a pulley, one side of the lower hook is fixedly connected to an insulating bar connecting piece, and a screw is fixed through screw locking devices. The tool has the following beneficial effects that the problems of tedious steps, long operation time, large working strength, high operating risk and the like of the previous operating method for replacement of the spacer can be solved, the working efficiency is greatly improved, and the working security of maintenance personnel is enhanced, so that the maintenance work for power-cut or live replacement of the 220kV spacer is more standardized and normalized.
Owner:YUNNAN POWER GRID CO LTD KUNMING POWER SUPPLY BUREAU

Mass spectrometry device used for high-throughput online photochemical reaction researches

The invention discloses a mass spectrometry device used for high-throughput online photochemical reaction researches. The mass spectrometry device comprises an induction nano-liter electrospray ion source system, a light source system and a mass spectrometry system, wherein the mass spectrometer injection port end of the mass spectrometry system is in ground connection; the induction nano-liter electrospray ion source system comprises a capillary array and a direct current pulse power supply system; the capillary front end of the capillary array is a top end; the capillary top end aligns to the mass spectrometer injection port of the mass spectrometry system; the direct current pulse power supply system comprises a high-voltage direct-current pulse power supply and a plate electrode; the plate electrode is arranged at the bottom of the capillary array; the high-voltage direct-current pulse power supply is used for generating a pulse high-voltage electric field for inducing a solution inside capillaries to polarize between the plate electrode and the mass spectrometer injection port; and the power supply system is used for providing controllable illumination for the capillary array.According to the mass spectrometry device, real-time online mass spectrometry researches of photochemical reactions can be carried out, and photochemical reactions inside different capillary reactiontubes are researched, so that the detection speed and capacity are greatly promoted.
Owner:WUHAN UNIV
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