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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 10. Отображено 10.
08-08-2023 дата публикации

Plateau mountainous area micro-terrain identification method based on surface flowing water physical simulation

Номер: CN116563610A
Принадлежит:

The invention discloses a plateau mountain area icing-prone microtopography identification method based on surface flowing water physical simulation. The method comprises the steps that a plateau mountain area digital elevation model (DEM) and a related information set are collected; the method comprises the following steps of: partitioning a region required to be identified, and extracting and forming a plateau mountain ridge and valley topographic feature information set; extracting and forming a plateau mountain area bealock microtopography feature information set; extracting and forming a topographic feature information set of the windward slope and the leeward slope of the plateau mountain area; extracting and forming a topographic feature information set of a plateau mountain area water vapor upstream region, a ridge water vapor region, a valley water vapor region and a bealock water vapor region; extracting a typical scene of a region needing to be classified, verifying the classification ...

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29-08-2023 дата публикации

Method and system for analyzing icing state of power transmission line

Номер: CN116664861A
Принадлежит:

The invention discloses a power transmission line icing state analysis method and system, and the method comprises the steps: collecting micro-meteorological data and image data near a power transmission line, and the inherent data of the power transmission line, and carrying out the preprocessing of the collected data; establishing a first neural network model according to the preprocessed micrometeorological data and the inherent data of the power transmission line in combination with a corresponding icing grade state; establishing a second neural network model according to the preprocessed image data and the corresponding icing grade state in combination with an output matrix of the first neural network model; and analyzing the icing state of the power transmission line in real time according to the second neural network model. According to the method, waste of manpower and material resources can be effectively reduced, line icing hidden dangers can be found in time, and compared with ...

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02-05-2023 дата публикации

Geostationary satellite forest fire point identification method and device based on high-resolution satellite data

Номер: CN116052359A
Принадлежит:

The invention discloses a high-resolution satellite data-based stationary satellite forest fire point identification method, which comprises the following steps of: acquiring ground information data based on a high-resolution satellite, and establishing a satellite fire danger monitoring ground background database; according to the ground background data, high-frequency detection is carried out on the change of the hot spot pixels, and the ground background hot spot pixels in different time dimensions are detected and analyzed; false hot spots are removed according to a dynamic threshold value in detection, and forest fire points are identified by utilizing reflectivity of different wave bands and different threshold values of brightness temperature. According to the invention, background information is obtained by using high-score data, and fire danger is monitored in combination with actual fire point occurrence, fire dynamic state and revised fire model parameters, so that the satellite ...

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30-06-2023 дата публикации

Burned area extraction method and device based on remote sensing image

Номер: CN116363500A
Принадлежит:

The invention discloses a burned area extraction method and device based on a remote sensing image, and the method comprises the steps: obtaining a forest multispectral image of a research region, and carrying out the preprocessing of the multispectral image; calculating a vegetation correlation index, and normalizing the vegetation correlation index; reading a vector range of the research area, and cutting the vector range; performing region extraction on the cut region according to a first threshold value, and converting the extracted region; and screening the converted areas according to a second threshold value to obtain a final burned area. According to the method, preprocessing and extraction automation can be realized, the extraction precision with the total precision of 90% and the Kappa coefficient of 0.85 can be realized only by using one vegetation index and combining with the area threshold, the process is more simplified, the method is simpler and quicker, and the extraction ...

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07-04-2023 дата публикации

Icing insulator online monitoring image labeling method

Номер: CN115937489A
Принадлежит:

The invention discloses an icing insulator on-line monitoring image labeling method. The method comprises the following steps: S1, carrying out manual labeling on icing image classification; and S2, detecting and marking an insulator target. The invention also discloses another icing insulator on-line monitoring image labeling method, which comprises the following steps of: setting seven labels, namely whether a photo is damaged or not, a photo shooting target type, whether a camera is normal or not, an icing type, insulator icing longitudinal distribution conditions, insulator transverse distribution conditions and insulator surface cleanliness; and manually marking the ice coating image classification. According to the method, data cleaning work is realized by formulating the labels of whether the photo is damaged, the target type of photo shooting and whether the camera is normal; the labeling efficiency of the target detection labeling stage is improved; classification of insulator ...

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15-08-2023 дата публикации

Icing detection method and system in power transmission line scene

Номер: CN116594078A
Принадлежит:

The invention discloses an icing detection method and system in a power transmission line scene, and the method comprises the steps: constructing an icing scene model according to the parameters, normal operation parameters and abnormal operation parameters of power transmission line composition equipment, and constructing a rotating target detection network; a feature extraction method and a target detection method in traditional comparative learning are optimized, an improved new comparative learning method is generated, and a rotating target detection network is updated; and establishing a concurrent integrated system, and performing icing detection on the icing scene model under the power transmission line scene in combination with the icing scene model trained by the updated rotating target detection network. According to the method, the adaptive point representation rotating target detection network based on comparative learning optimization is adopted, the actual icing area of the ...

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07-04-2023 дата публикации

High-impulse and large-amplitude ice-coated ground wire pulse deicing method and high-impulse and large-amplitude ice-coated ground wire pulse deicing device

Номер: CN115940068A
Принадлежит:

The invention discloses a high-impulse and large-amplitude ice-coated ground wire pulse deicing method and device, and the method comprises the steps: selecting a target deicing ground wire according to the historical ground wire icing condition; determining the installation position of an actuating device according to the historical equivalent icing thickness condition of the target deicing ground wire; pre-installing a distributed actuating device in advance according to the installation position when the ice coating is not performed, and setting an equivalent ice coating thickness threshold value; after icing, measuring the equivalent icing thickness of the ground wire icing through equipment measurement or manual observation, judging the icing condition of the ground wire, and classifying the icing condition; when the real-time equivalent icing thickness of the ground line exceeds an equivalent icing thickness threshold value, deicing is carried out according to the type of the icing ...

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09-05-2023 дата публикации

Power transmission line vibration deicing device based on cable cohesion

Номер: CN116093867A
Принадлежит:

The invention discloses a power transmission line vibration deicing device based on cable cohesion, and belongs to the technical field of cable deicing, the power transmission line vibration deicing device comprises an anti-falling mechanism, the anti-falling mechanism comprises two collection boxes, and the two sides of a top opening of each collection box are fixedly connected with insertion strips; a sliding groove is formed in the outer wall of the bottom of the outer cover, and the inserting strip is in sliding connection with the sliding groove. According to the power transmission line vibration deicing device based on the cable embracing type, the anti-falling mechanism, the sliding mechanism, the deicing mechanism and other mechanisms are arranged, so that an ice layer on a cable can be conveniently cleaned, manpower can be effectively replaced for automatic cleaning, the labor intensity of workers is effectively relieved, the anti-falling mechanism can provide a balance weight ...

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23-06-2023 дата публикации

Icing thickness measuring system based on movable laser camera

Номер: CN116295041A
Принадлежит:

The invention discloses an icing thickness measurement system based on a movable laser camera, and the system comprises the steps: carrying the measurement system on an ice observation robot body, and obtaining an icing picture through a laser distance measurement sensor and a camera; using the movement of the camera to obtain a multi-angle icing picture, and processing the multi-angle icing picture to obtain an icing contour; scanning an iced wire through a laser distance measuring sensor to obtain an iced surface point cloud and an iced contour; and obtaining the icing thickness based on the icing contour obtained by the camera and the icing contour obtained by the laser distance measuring sensor. According to the invention, the icing thickness measurement system is carried on the ice observation robot for high-voltage transmission line operation, the camera and laser are combined to realize online monitoring of the icing thickness, measured icing contour data are adapted to various icing ...

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04-08-2023 дата публикации

High-voltage line deicing device

Номер: CN116544869A
Принадлежит:

The invention discloses a high-voltage line deicing device, which comprises a walking assembly which comprises a bottom plate, a side plate and a gripper, a rotating assembly which is arranged on the side edge of the walking assembly and comprises a rotating motor, a four-bar linkage and a telescopic rod, and an icebreaking assembly which is arranged at one end of the rotating assembly and comprises an icebreaking motor, a switch piece and a hammer piece. Under the cooperation of the walking assembly, the rotating assembly and the ice breaking assembly, the deicing device can directly change the direction on the high-voltage line and keep stable when changing the direction, and the deicing efficiency is improved.

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