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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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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 12. Отображено 12.
18-06-2014 дата публикации

Depth reference plane geodetic height measuring method based on PPP (Point -to-Point Protocol) technology

Номер: CN103868493A
Автор: LI KAIFENG, OUYANG YONGZHONG, LU XIUPING, WU TAIQI, XU GUANGXIU, WANG GENGFENG
Принадлежит:

The invention relates to a depth reference plane geodetic height measuring method based on a PPP (Point -to-Point Protocol) technology. The depth reference plane geodetic height measuring method is mainly and technically characterized in that by arranging a GPS (global position system) control net, a tide station and a known control point are simultaneously observed; if the known control point is not available in a measuring region, precise point positioning observation is adopted on the tide station, so that the geodetic height of a depth reference plane of the tide station in the measuring region is accurately obtained; a transducer and a double-frequency GPS antenna are arranged on a straight line, the water depth measurement operation is performed, GPS observation data acquired by a measuring line is subjected to precise point positioning calculation, and the geodetic height of the depth reference plane of each measure point is calculated; the water depth value measured by a depthometer ...

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Номер записи: 1
11-06-2014 дата публикации

Ultrashort base line magnetic declination measuring method based on gyro theodolite

Номер: CN103852058A
Автор: REN LAIPING, OUYANG YONGZHONG, WU TAIQI, LI KAIFENG, LU XIUPING, HUANG XIANYUAN, DENG KAILIANG, WANG GENGFENG
Принадлежит:

The invention relates to an ultrashort base line magnetic declination measuring method based on a gyro theodolite. The main technical characteristics are as follows: erecting a magnetic theodolite and a gyro theodolite respectively on a primary measuring point and an auxiliary measuring point on a base observing line, centering and leveling respectively, then aiming at each other by telescopes, and locking the telescopes of the magnetic theodolite and the gyro theodolite still; using the sight axis of the magnetic theodolite and the gyro theodolite as the aiming direction of the geodetic azimuth and magnetic declination of the base observing line; measuring the geodetic azimuth alpha of the base observing line; measuring the magnetic azimuth alpham of the base observing line; and calculating the magnetic declination D of the base observing line. By adopting the method of aiming the magnetic theodolite and the gyro theodolite with each other, the centering error is greatly reduced, the length ...

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Номер записи: 2
04-07-2023 дата публикации

Precast beam lattice type tunnel inverted arch structure and construction technology thereof

Номер: CN116378714A
Автор: LI RUIQIAN, ZHANG XUDONG, ZHANG KAISHUN, WANG GENGFENG, ZHANG XIN, XU TENGHUI, XIONG XIAOHUI, YAO SONGLIN, LIU PENG, ZHANG XUAN, WANG XIAN, DENG JUN, LI PENGYUAN, LI XIANG
Принадлежит:

The invention provides a precast beam lattice type tunnel inverted arch structure and a construction technology thereof, the precast beam lattice type tunnel inverted arch structure comprises main beams consistent with the shape of the section of a tunnel inverted arch, the main beams are distributed at intervals along the advancing direction of a tunnel, and the precast beam lattice type tunnel inverted arch structure further comprises straining beams which are vertically connected between two adjacent main beams and are uniformly distributed; each main beam is composed of more than two sections of main beam precast beams; each single straining beam is composed of more than one straining beam precast beam, connecting and fixing mechanisms are also arranged at the two ends of each straining beam precast beam, and the straining beam precast beams and the main beams jointly form a beam lattice unit; the plain concrete filling unit is directly poured in each grid in the beam grid unit and ...

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Номер записи: 3
01-10-2014 дата публикации

Method for measuring vertical depth of underwater magnetic small target

Номер: CN104075690A
Автор: REN LAIPING, WU TAIQI, LI KAIFENG, LU XIUPING, XU GUANGXIU, LIU CHUANYONG, HUANG CHENHU, WANG GENGFENG
Принадлежит:

The invention relates to a method for measuring the vertical depth of an underwater magnetic small target. The method is mainly technically characterized by comprising the following steps: measuring a magnetic abnormal signal of the underwater magnetic small target through an ocean magnetic instrument probe to obtain magnetic abnormal signal width s; performing fitting by a regression analysis method to obtain a vertical depth estimation coefficient rho (I), wherein I is a geomagnetic inclination; and calculating the vertical depth h of the underwater magnetic small target according to the magnetic abnormal signal width s and the vertical depth estimation coefficient pho (I) of the underwater magnetic small target. The method is reasonable in design, a proportional relation between the depth and the magnetic abnormal signal width of the underwater small target is established on the basis of a ship-borne marine magnetic survey mode, the underwater magnetic small target can be accurately ...

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Номер записи: 4
11-06-2014 дата публикации

Method for measuring magnetic anomaly intensity of underwater small targets

Номер: CN103852796A
Автор: REN LAIPING, WU TAIQI, LI KAIFENG, LU XIUPING, HUANG XIANYUAN, DENG KAILIANG, WANG KEPING, WANG GENGFENG
Принадлежит:

The invention relates to a method for measuring magnetic anomaly intensity of underwater small targets. The method is technically characterized in that seabed magnetic force data are detected through a sea magnetometer probe; according to the seabed magnetic force data, the underwater small targets are simplified to magnetic dipoles, and a magnetic field B generated by the underwater small targets is decomposed into an axial component B1 and a transverse component Bt in the T0 direction of a terrestrial magnetism background field; the axial component B1 is taken as the magnetic anomaly intensity of the underwater small targets, the geometric space relation between the underwater small targets and sea magnetometer measuring points is taken into consideration, and the magnetic anomaly intensity of the underwater small targets is calculated. The relation between the magnetic anomaly intensity and sea magnetometer measuring point positions, the terrestrial magnetism background field and target ...

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Номер записи: 5
05-06-2020 дата публикации

Vault deformation alarm device for excavation of lower step of tunnel

Номер: CN0210689537U
Автор: WANG GENGFENG, WANG LI, ZHANG KEHONG, ZHANG XIAOXIAO, WANG XINGLIU, WANG GUILIN, WANG RUNQIU, SUN FAN
Принадлежит: CHINA RAILWAY 11TH BUREAU GROUP NO 4 ENG CO LTD, CHINA RAILWAY 11TH BUREAU GROUP CO LTD, UNIV CHONGQING, CHINA RAILWAY 11TH BUREAU GROUP NO.4 ENGINEERING CO., LTD., CHINA RAILWAY 11 BUREAU GROUP CO., LTD., CHONGQING UNIVERSITY

The utility model discloses a vault deformation alarm device used during excavation of a lower step of a tunnel. The device comprises a measuring system (1), a rotating speed control system (2), a signal processing system (3), an alarm device (4), a display device (7) and a wireless transmitting module (8), wherein the measuring system (1) is connected with the signal processing system (3), the signal processing system (3) is respectively connected with the alarm device (4), the display device (7) and the wireless transmitting module (8), the signal processing system (3) is connected with therotating speed control system (2), and the rotating speed control system (2) is connected with the measuring system (1). Intelligent monitoring and alarming are conducted on preliminary bracing withina certain range of a tunnel vault, alarming is conducted in time, whether the vault collapses or not can be alarmed in advance, and the possibility of accidents caused by collapse around the vault isreduced ...

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Номер записи: 6
11-06-2014 дата публикации

Astro-observation-based isolated small reef magnetic declination measurement method

Номер: CN103852057A
Автор: REN LAIPING, OUYANG YONGZHONG, WU TAIQI, LI KAIFENG, LU XIUPING, XU GUANGXIU, LIU CHUANYONG, WANG GENGFENG
Принадлежит:

The invention relates to an astro-observation-based isolated small reef magnetic declination measurement method. The method has the main technical characteristics of comprising the steps of burying a non-magnetic survey mark at a main measurement point of an isolated small reef, erecting a magnetic theodolite at the main measurement point to form an astro-observation base line, and determining the space coordinates of the main measurement point by a static observational method; aiming at the spatial celestial body by the magnetic theodolite and accurately recording the observation time, and calculating the geodetic azimuth alpha of the astro-observation base line and the magnetic azimuth alpha m of the astro-observation base line by the astronomical calendar; calculating the magnetic declination D at the main measurement point. According to the method, the non-magnetic survey marker only needs to be buried at the main measurement point of the isolated small reef, and the astro-observation ...

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Номер записи: 7
02-07-2014 дата публикации

Optimum resolution determination method for ocean surveying data gridding

Номер: CN103900540A
Автор: XU GUANGXIU, LI KAIFENG, WU TAIQI, LU XIUPING, REN LAIPING, OUYANG YONGZHONG, WANG GENGFENG
Принадлежит:

The invention relates to an optimum resolution determination method for ocean surveying data gridding. The optimum resolution determination method has the main technical characteristics that submarine topography information and ocean geophysical field information are set as frequency domain functions; the function maximum frequency capable of being recovered in the gridding process can be determined by sampling density and a distribution manner of surveying data; optimum resolution estimation is carried out by space distribution characteristics of a sampling point so as to obtain the gridded optimum resolution of the ocean surveying data. According to the meshed optimum resolution determination method, the optimum gridding resolution of the surveying data of submarine topography and ocean geophysical fields can be rapidly and accurately determined by only using a surveying proportional scale according to a relation among the gridding resolution, the surveying proportional scale and the ...

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Номер записи: 8
11-06-2014 дата публикации

Method for extracting magnetic anomaly signals of underwater small targets

Номер: CN103852795A
Автор: REN LAIPING, WU TAIQI, LI KAIFENG, LU XIUPING, HUANG XIANYUAN, DENG KAILIANG, HUANG CHENHU, WANG GENGFENG
Принадлежит:

The invention relates to a method for extracting magnetic anomaly signals of underwater small targets. The method is technically characterized in that seabed magnetic force is detected through a marine magnetometer probe and a test data curve is obtained; the magnetic field change gradient of each survey point in each survey line direction is calculated, and sudden change points of the magnetic field gradients serve as initial positions of the magnetic anomaly signals; magnetic anomaly signal segments are determined; all survey points on each survey line are decomposed into one magnetic anomaly signal segment and one non-magnetic anomaly signal segment, and the terrestrial magnetism background field of each survey point is fit; the actual magnetic measurement value of each survey point minus the terrestrial magnetism background field value of the survey point is a magnetic anomaly value after the corresponding background field is removed, and therefore the magnetic anomaly signals of the ...

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Номер записи: 9
11-06-2014 дата публикации

Shipborne gravity measurement method based on PPP technology

Номер: CN103852799A
Автор: OUYANG YONGZHONG, LI KAIFENG, DENG KAILIANG, LU XIUPING, REN LAIPING, XU GUANGXIU, LIU CHUANYONG, WANG GENGFENG
Принадлежит:

The invention relates to a shipborne gravity measurement method based on the PPP technology. The method is mainly characterized in that a gravity meter and a dual-frequency GPS antenna are installed on the same straight line and used for measuring shipborne gravity, GPS observation data acquired by a measurement wire are subjected to precise single-point positioning resolving, and the accurate 3D position of an observation point is obtained; according to the accurate 3D position of the observation point, Eotvos correction and perpendicular acceleration correction are calculated; according to the gravity observation value measured by the gravity meter, the Eotvos correction and the perpendicular acceleration correction, an image-borne result gravity value is obtained through comparison calculation of base points. According to the method, only one dual-frequency GPS receiver is needed, the 3D position of a shipborne gravity measurement line can be accurately calculated through the PPP technology ...

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Номер записи: 10
18-06-2014 дата публикации

Gridding processing method for mass discrete data based on geographical fragmentation

Номер: CN103870636A
Автор: XU GUANGXIU, LI KAIFENG, WU TAIQI, LU XIUPING, REN LAIPING, OUYANG YONGZHONG, WANG GENGFENG
Принадлежит:

The invention relates to a gridding processing method for mass discrete data based on geographical fragmentation. The gridding processing method is technically characterized by comprising the following steps of performing thinning processing on an original discrete data set to generate a thinning data set; constructing a Delauney triangulation network; extracting the accurate data scope and a bounding rectangle of the original data set; performing fragmentation processing on the original discrete data set and extracting the accurate data scope of each fragmentation data set; performing extension processing on the accurate data scope of each fragmentation data set; performing gridding processing on each fragmentation data set to generate fragmentation girds; performing splicing and polishing processing on the fragmentation girds to generate final large-area seamless grids. According to the gridding processing method disclosed by the invention, a processing model can be established by frequently-used ...

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Номер записи: 11
18-06-2014 дата публикации

Storage method for marine environment data based on geographical fragmentation and dynamic tabulation

Номер: CN103870542A
Автор: XU GUANGXIU, WU TAIQI, REN LAIPING, LU XIUPING, OUYANG YONGZHONG, LI KAIFENG, WANG GENGFENG
Принадлежит:

The invention relates to a storage method for marine environment data based on geographical fragmentation and dynamic tabulation. The storage method is mainly and technically characterized by comprising the following steps of calculating the record number of original data sets, if the record number exceeds a preset storage threshold of a single database table, carrying out thinning processing and generating a measurement track line and constructing a Delauney triangulation network; extracting the accurate data scope and a bounding rectangle of the data sets; carrying out combining processing of geographical fragmentation and edition; extracting the data scope of each fragmentation data set; dynamically creating a database table and structure; entering various fragmentation data sets into corresponding database tables in batch; establishing the incidence relation among various data tables. According to the storage method disclosed by the invention, the design is reasonable; by grading, classified ...

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Номер записи: 12