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230results about How to "Clear identification" patented technology

Divergence-index-based fault diagnosis method of variable-working-condition wind-power planetary gearbox

ActiveCN105510023AGuaranteed full periodicityAvoid non-stationary featuresMachine gearing/transmission testingTime domainEngineering
The invention, which belongs to the technical field of the rotation machinery fault diagnosis, especially relates to a divergence-index-based fault diagnosis method of a variable-working-condition wind-power planetary gearbox, wherein the method is especially suitable for the fault diagnosis field of the variable-working-condition wind-power planetary gearbox. The method comprises: on the basis of an order ratio re-sampling technology, pretreatment is carried out on a vibration signal collected by the variable-working-condition wind-power planetary gearbox sensor and a non-linear and non-stable time-domain signal is converted into an angular-domain signal with stability; because the planetary gearbox with the structural characteristics and diagnosis difficulties is different from the traditional fixed-shaft gearbox, faults of the planetary gearbox are graded and are diagnosed; a fault characteristic set is extracted; a fault diagnosis parameter is obtained; and then an experiment is carried out for verification. According to the invention, the non-stable characteristic of the vibration signal can be avoided and the fault characteristic order ratio can be identified effectively and clearly; the J-divergence and the KL-divergence can represent fault generation positions and types of the planetary gearbox; and when a fault occurs, a fault diagnosis can be carried out based on mutual assistance and the sensitivity is high.
Owner:ELECTRIC POWER RES INST OF EAST INNER MONGOLIA ELECTRIC POWER +2

Turn-to-turn fault monitoring and protection identification method for dry-type air-core series reactor

The invention discloses a turn-to-turn fault monitoring and protection identification method for a dry-type air-core series reactor of a parallel capacitor bank, and relates to the field of electricalequipment fault protection of a power system. At present, the understanding of triggering and exciting complex electromagnetic field energy conversion in the development process of the turn-to-turn short circuit fault of the capacitor bank parallel series reactor is lacked, and the turn-to-turn short circuit fault is not concerned to occur along with a secondary grounding fault. According to themethod, through acquiring bus PT voltage, acquiring CT three-phase current (Ia, Ib and Ic) of an angular inner sleeve of the angular wiring transformer or CT current I'a, I'b and I'c of a capacitor branch, HR (Iab), HR (Ibc) and HR (Ica) values or HR (I'a), HR (I'b) and HR (I'c) values are calculated in real time and mutual relations are identified. Fault identification and protection are realizedafter consistency identification of dominant frequency and reactance rate of harmonic current and bus grounding auxiliary signal identification, accurate identification and fault phase determinationcan be performed at the initial stage of turn-to-turn fault of equipment, and alarm and power supply cut-off can be performed in time.
Owner:MAINTENANCE BRANCH COMPANY STATE GRID ZHEJIANG ELECTRIC POWER +4

Improved method for detecting and identifying transgenic wheat with high sensitivity and high efficiency

InactiveCN103160612AOvercome the problem of unsatisfactory detection effectImprovement of Chromosome Production TechnologyMicrobiological testing/measurementFluorescence/phosphorescenceCell divisionFluorescence
The invention discloses an improved method for detecting and identifying transgenic wheat with high sensitivity and high efficiency. The improved method comprises the steps of: (1) carrying out pretreatment and enzymolysis on tissue with vigorous cell division in a meristematic zone at a root tip of wheat through N2O gas to obtain a metaphase mitotic phase specimen with clear image and good dispersion of chromosomes; (2) marking a fluorescent probe of a target fragment to be detected (for example, a transgenic fragment carried by a transgenic carrier) by utilizing a nick translation method; (3) carrying out fluorescent in-situ hybridization on the metaphase mitotic phase chromosomes of the transgenic wheat obtained in the step (1) by utilizing the fluorescent probe of the target fragment of the transgenic carrier constructed in the step (2); and (4) analyzing fluorescent in-situ hybridization results obtained in the step (3), and comparing the fluorescent in-situ hybridization results with a contrast material to determine the distribution of fluorescent signals in the transgenic wheat to be detected. The improved method provided by the inventions can be applied to chromosomal localization of exogenous transgenic wheat with the sensitivity reaching 2-3kb, and also can be applied in the identification of transgenic signals of other crops.
Owner:INST OF GENETICS & DEVELOPMENTAL BIOLOGY CHINESE ACAD OF SCI

On Cell structure touch display screen and manufacturing method thereof and display device

The invention discloses an On Cell structure touch display screen and a manufacturing method thereof and a display device, relates to the technical field of liquid crystal display, and aims at solving the problem of high error-reporting rate of an exposure machine in the process of alignment exposure on a plurality of touch layers. The manufacturing method of the On Cell structure touch display screen comprises the steps as follows: a transparent semiconductor layer, a first protection layer, a metal layer and a second protection layer are sequentially manufactured between a color-film substrate and a polarizing plate along a ray propagation direction; alignment marks of the transparent semiconductor layer and the first protection layer are manufactured on a black matrix of the color-film substrate; the used materials are light-shielding materials; the alignment mark of the metal layer is made of a photoresist; and the alignment mark of the second protection layer is made of a reflecting material. The On Cell structure touch display screen is manufactured by the manufacturing method; and the manufacturing method of the On Cell structure touch display screen disclosed by the invention is used for manufacturing the touch screen.
Owner:BOE TECH GRP CO LTD +1

Crack image acquisition method, crack image detection method, computer equipment and readable storage medium

The invention discloses a crack image acquisition method, a crack image detection method, computer equipment and a readable storage medium, and belongs to the technical field of computer vision. The crack image acquisition method comprises the following steps: detecting target equipment in a sample image to generate an equipment image set, detecting target components in the equipment image set togenerate a component image set, and processing the component image set to generate a crack image set; training a detection model based on the crack image set; compared with the prior art, layer-by-layer detection of a sample image and segmentation of a detection result are carried out, and target detection and semantic segmentation technologies are combined to identify cracks, so that specific pixels of the cracks can be rapidly and accurately identified instead of only identifying an external rectangular area where the pixels are located, and thus the obtained crack image is more accurate. According to the crack detection method provided by the invention, the crack detection model is trained on the basis of the crack image acquired by the crack image acquisition method, and the crack canbe quickly and accurately identified.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +2

Piston-cylinder arrangement with a travel-measuring sensor

InactiveCN103534491AClear identificationClear displacement measurementFluid actuated clutchesTelemotorsSecondary loopPiston
The invention relates to a piston-cylinder arrangement, in particular for use in a hydraulic system for activating a clutch in a motor vehicle, having a piston which is arranged in an axially movable fashion in the cylinder, wherein an inductive sensor is arranged on the cylinder and has at least one primary coil for generating a magnetic field and at least two secondary coils which are arranged inside the primary coil and have the purpose of sensing the target positions, wherein the coil axes are arranged perpendicularly with respect to the direction of movement of the piston, and the secondary coils are formed with crossed windings, wherein a first secondary coil is embodied in such a way that a first loop covers approximately a quarter of the sensor length, a second adjoining loop; covers approximately half the sensor length and a third adjoining loop covers approximately the remaining quarter of the sensor length, and a second secondary loop is embodied in such a way that a first loop covers approximately the first half of the sensor length, and a second loop covers approximately the second half of the sensor length, characterized in that at least two targets composed of an electrically conductive material are arranged on the piston, and the targets are spaced apart axially from one another and the targets have different electrical conductivity and / or are of a different size, and the sensor has at least one assignment coil which extends over the entire sensor length.
Owner:SCHAEFFLER TECH AG & CO KG

Headlamp control device

The invention relates to a headlamp control device. The headlamp control device comprises an automobile lamp module, a headlamp control module and an automobile body module which are sequentially connected and is characterized in that the automobile lamp module comprises a low-beam headlamp module and a high-beam headlamp module; the automobile body module comprises an image acquiring module and an automobile body power CAN module; the headlamp control module comprises a main controller unit and a driver boosting unit, a headlamp drive unit and a Sub-CAN bus interface unit which are connectedwith the main controller unit. The headlamp control module has the advantages that the high-beam headlamp module is divided into a plurality of regional lamp groups, the image acquiring module of theautomobile body module identifies road conditions and vehicle information in front of a corresponding automobile, the road conditions and vehicle information are transmitted to the headlamp control module, the automobile body power CAN module transmits the traveling information of the corresponding automobile to the headlamp control module, and the headlamp control module controls the brightness of the regional lamp groups according to the road conditions and vehicle information and the traveling information.
Owner:上海晨阑光电器件有限公司

High-temperature kiln product sorting and tracing method and system based on two-dimensional code nameplates

The invention relates to a high-temperature kiln product sorting and tracing method and system based on two-dimensional code nameplates. By the provided method and system, high-temperature kiln products can be automatically sorted and traced. According to the technical scheme, the high-temperature kiln product sorting and tracing method based on the two-dimensional code nameplates comprises the following steps: (1) associating products with the two-dimensional nameplates; (2) placing the two-dimensional nameplates on the products, and enabling the two-dimensional nameplates and the products to move forwards along an assembly line; (3) arranging two-dimensional recognizing devices on a sorting opening of the assembly line, sorting the products, and feeding the products into a high-temperature kiln for firing; and (4) finding out the associated products, and tracing the products in batches. The sorting and tracing system comprises a computer, the two-dimensional nameplates, at least one first two-dimensional code recognizing device and a plurality of second two-dimensional code recognizing device. Each two-dimensional code nameplate for sorting and tracing of products of the high-temperature kiln comprises a substrate, a code tagging region is arranged in the middle of a top surface of each substrate, and a two-dimensional code is arranged in each code tagging region.
Owner:浙江恩大施福软件科技有限公司

Monitoring camera device and application method thereof

The invention provides a monitoring camera device, comprising a monitoring camera and an LED light supplement lamp which is arranged in the same direction as the monitoring camera, wherein the LED light supplement lamp comprises a shell, and a circuit control module and an LED lamp that are arranged inside the shell; a reflection cup and a light transmitting window are arranged at the front end of the shell, the circuit control module is connected with the LED lamp, the light transmitting window is matched with the outlet of the reflection cup, the light transmitting window is provided with a convex lens, and the power of the LED lamp is 5-50W. The invention also provides an application method of the monitoring camera device. According to the monitoring camera device provided by the invention, the phenomenon that the headlamp of the vehicle directly illuminates the monitoring camera can be avoided, and the tailing phenomenon in the camera shooting process can be completely avoided; the adopted light supplement lamp has low power and is energy-saving and environmentally friendly; the light emitted by the light supplement lamp is uniform and soft, the sight line of the driver cannot be affected, safe driving of the driver can be guaranteed, and high security can be achieved; and the identification rate of vehicle registration plates can be increased, and the requirements of the intelligent license plate retrieval for the image clarity can be met.
Owner:WEIHAI PUBLIC SECURITY BUREAU WENDENG BRANCH +1

Volcano rock reservoir fluid identification method

The invention provides a technical method of volcano rock reservoir fluid identification and belongs to the field of oil and gas field exploration and development. The method comprises the steps that (1) core and imaging data are used to calibrate the response characteristics of a dual laterolog crack; (2) according to the dual laterolog crack response mode established in the step (1), a crack upgrowth section is found; (3) a production test result is used to find the gas reservoir and the non gas reservoir; (4) by respectively analyzing the gas reservoir and the non gas reservoir, the dual laterolog logging response characteristics of the crack type gas reservoir and the crack type non gas reservoir are acquired; (5) the dual laterolog logging response characteristics of the crack type gas reservoir and the crack type non gas reservoir are compared, and the difference characteristics are analyzed to establish the discrimination basis of a gas bearing crack type reservoir and a gas free crack type reservoir; (6) according to the step (5), the dual laterolog identification mode of crack and fluid difference study is established; and (7) a dual laterolog principle is used to carry out fluid identification on a non crack type reservoir, so as to realize the fluid identification of all reservoirs.
Owner:CHINA PETROLEUM & CHEM CORP +1
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