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

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Применить Всего найдено 5. Отображено 5.
27-08-2021 дата публикации

Tripod convenient to disassemble and used for surveying and mapping engineering

Номер: CN214064264U
Автор: HE FUSHOU, WANG SHUANGHUI, ZHAO YONGMAO, DUAN ZHIWEI, 何复寿, 王双慧, 赵永茂, 段志伟
Принадлежит: HU LEI, HAN TAO, LI HAIJUN, 胡雷, 韩涛, 李海君

The utility model relates to the technical field of engineering surveying equipment, in particular to a surveying and mapping engineering tripod convenient to disassemble, which comprises a plurality of tripod main bodies, a total station and a second fixing plate, a first fixing plate is fixedly connected between the tops of the two connecting plates, the total station is placed on the top of the first fixing plate, and through the structural design of the inserting plate, the first fixing plate, the connecting plates, the second fixing plate, the limiting clamping blocks, the connecting rods and a first opening formed in the inserting plate, the total station is placed on the top of the first fixing plate; the tripod and the total station are effectively and conveniently detached, the situation that the detaching process between the total station and the tripod is tedious is avoided, and the problem that the detaching efficiency between the total station and the tripod body is low due ...

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Номер записи: 1
08-08-2023 дата публикации

Method for evaluating fine smashing scheme of operating ordinary-speed railway based on multi-factor constraint

Номер: CN116561913A
Автор: DING YOUKANG, WANG XIAOKAI, JIA BIN, LOU LIANGWEI, WANG PENG, YANG LIGUANG, ZHANG YE, SHI WENJIE, ZHENG XINGUO, WEI SHAOWEI, HE FUSHOU, YE XIAOYU, GONG CHAO, YANG YIKE, LIN JIAMU
Принадлежит:

A multi-factor constraint-based evaluation method for a fine tamping scheme of an operating ordinary-speed railway comprises the following steps of: comprehensively comparing line flat and vertical section parameters before and after section reconstruction design of the fine tamping scheme, judging whether a flat and vertical section reconstruction design result meets a limit value requirement, and ensuring the reasonability of the flat and vertical section design parameters; according to the method, irregularity of a target line shape under different detection chord lengths is evaluated, the driving power performance of the target line shape is evaluated, the smoothness of the optimized target line shape is ensured, the track starting and lining amount, the change rate and the proportion of a fine tamping scheme are considered, the feasibility of the scheme is evaluated, and it is ensured that the adjustment amount of the fine tamping scheme conforms to tamping operation characteristics ...

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Номер записи: 2
28-04-2023 дата публикации

Plane coordinate measurement data overlapping method and system for operating ordinary-speed railway

Номер: CN116029036A
Автор: DING YOUKANG, LOU LIANGWEI, WANG XIAOKAI, ZHANG YANG, WANG PENG, YANG LIGUANG, ZHENG XINGUO, WEI SHAOWEI, CHEN RONG, ZHANG YE, YE XIAOYU, JIA BIN, HE FUSHOU, SHI WENJIE, GONG CHAO, WANG PENGCHENG, YANG YIKE, YANG YONGDONG, LIN JIAMU, DONG ENJIANG
Принадлежит:

A plane coordinate measurement data lap joint method for operating a general speed railway comprises the steps that plane coordinate measurement data in a lap joint area and within a certain distance between the two ends are screened, the screened plane coordinate measurement data are sorted according to the line trend, and therefore measurement data selection of a local reconstruction design area is completed; according to plane coordinate measurement data in the local reconstruction design area, completing local linear reconstruction design, and calculating plane deviation of two times of measurement data in the lap joint area; the plane deviation difference of the two-time measurement data in the lap joint area is calculated, and whether the two-time measurement data meet the lap joint precision requirement or not is judged according to the calculation result of the plane deviation difference; when the two-time plane coordinate measurement data in the lap joint area meet the lap joint ...

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Номер записи: 3
25-07-2023 дата публикации

Multi-control-point combined MLS measurement precision correction method

Номер: CN116481562A
Автор: LOU LIANGWEI, WANG XIAOKAI, ZHANG YE, WANG PENG, YANG LIGUANG, DING YOUKANG, YAO JIANPING, JIA BIN, HE FUSHOU, SHI WENJIE, MAO QINGZHOU, DONG CUIJUN
Принадлежит:

The invention provides a method for jointly correcting MLS measurement precision through multiple control points. The method comprises the steps that a positioning error value is calculated based on IMU and odometer combined dead reckoning and control point back calculation; the positioning error value is converted into a virtual control point mileage coordinate system, a gyroscope zero offset error circle is solved through a multi-control-point overall adjustment method, and a speedometer scale factor is estimated; calculating the gyroscope zero offset based on the gyroscope zero offset error circle and the running speed of the detection equipment; the pose of the revised trajectory is reckoned based on the gyro zero offset and the odometer scale factor. According to the method, main error terms influencing positioning during dead reckoning of the IMU/odometer, namely the gyro zero offset and the odometer scale factor, are determined, and the high-precision characteristic of a control ...

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Номер записи: 4
26-05-2023 дата публикации

Railway Beidou base station control network automatic updating and maintaining method and system

Номер: CN116166680A
Автор: WANG PENG, WANG XIAOKAI, LOU LIANGWEI, CAI DEGOU, JIA BIN, YANG LIGUANG, DING YOUKANG, YE XIAOYU, ZHANG YE, HE FUSHOU, WEI SHAOWEI, SHI WENJIE, YAO JIANPING, XIE JIAO, SHI YUEFENG, CAO YUANDONG, LYU SONG, LIN JIAMU, YANG WEILI, ZHANG ZHICHAO
Принадлежит:

The invention discloses an automatic updating and maintaining method and system for a railway Beidou base station control network, and the method comprises the following steps: receiving the observation data of a base station, decoding the observation data, cutting the data at equal time intervals, storing the data in a local disk, and carrying out the format conversion at regular time; calling the database after format conversion; synchronous observation data and ephemeris data of the two reference stations needing baseline solution are used for conducting three-difference preprocessing, double-difference floating point solution, double-difference ambiguity fixing and fixed solution back calculation of a baseline; a repeated baseline, a synchronous ring and an independent closed ring are established for detection, and an unconstrained network detection result is automatically generated after a baseline vector meets the requirement; resolving all base line vectors passing the test in the ...

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Номер записи: 5