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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 10. Отображено 10.
12-11-2014 дата публикации

Fingerprint positioning method based on direction sensor and WLAN network

Номер: CN104144495A
Автор: WEI DONGYAN, ZHANG XIAOGUANG, LAI QIFENG, GONG XUPING, LI XIANGHONG, CHEN XIALAN, XU YING, YUAN HONG
Принадлежит:

The invention discloses a fingerprint positioning method based on a direction sensor and a WLAN network. A fingerprint base is generated by measuring AP signal strength received by reference points in different directions in an off-line period, a direction angle of a terminal is acquired by means of the direction sensor arranged in the WLAN terminal in an on-line period, matching is performed by means of the signal strength received in the direction proximate to the direction angle in the fingerprint base, difference of signal strength caused by different directions is reduced, and therefore, positioning precision is improved. Meanwhile, body covering conditions are judged during positioning, matching of the signal strength of APs in a body covering area is ignored, positioning interference caused by body covering is reduced, and positioning precision is improved further.

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Номер записи: 1
08-04-2015 дата публикации

Active vision positioning method

Номер: CN104504675A
Автор: GONG XUPING, WEI DONGYAN, LAI QIFENG, ZHANG XIAOGUANG, CHEN XIALAN, LI XIANGHONG, XU YING, YUAN HONG
Принадлежит:

The invention discloses an active vision positioning method. An adaptability design is carried out on a cooperative target to cause the shape and size of the cooperative target and relative positions among squares to be more favorable for detecting and identifying the cooperative target, wherein the edge distance of three squares is greater than the edge length of each square to effectively improve a classifying and sorting success rate of angular points; the cooperative target is jointly formed by that a red pattern is used as a back plate and three square yellow patterns are used as cooperative marks, so that the back plate and the cooperative mark can be more easily distinguished; the square mark positioned on a middle upper position is bigger, so that the cooperative mark exhibits good directivity, other two square patterns are independently positioned on two sides of the middle square pattern, and the three square patterns can be effectively distinguished according to the outline size ...

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Номер записи: 2
25-02-2015 дата публикации

Positioning method based on linear landmark

Номер: CN104374386A
Автор: GONG XUPING, WEI DONGYAN, LAI QIFENG, ZHANG XIAOGUANG, CHEN XIALAN, LI XIANGHONG, XU YING, YUAN HONG
Принадлежит:

The invention discloses a positioning method based on a linear landmark. Because the linear landmark of the road has universality, the actual application cost is effectively saved. The invention provides a linear landmark area positioning method based on Adaboost. The method comprises the following steps: extracting linear information of a linear landmark frame in a pixel coordinate system in the image and linear information of a real linear landmark frame in a linear landmark coordinate system, enabling the lines of the frames under two coordinate systems to be correspondingly equal, solving a conversion relationship between the pixel coordinate system and the linear landmark coordinate system, thereby obtaining the position of a user in a geodetic coordinate system. Therefore, the detection precision is improved.

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Номер записи: 3
02-12-2015 дата публикации

Magnesium alloy is smelted with changeing liquid package

Номер: CN0204818029U
Автор: WANG QINGFENG, GONG XUPING, DING XUNHUA
Принадлежит:

The utility model discloses a magnesium alloy is smelted with changeing liquid package, including changeing the fluid inclusion, its characterized in that: the upper and lower end that changes the fluid inclusion is equipped with commentaries on classics liquid and wraps a bulb flat, the upper end of changeing the liquid package is equipped with the lug, the bottom of changeing the fluid inclusion is equipped with the tapping hole, the downthehole stopper that is equipped with of tapping, the stopper upper end is connected through mentioning the board, the upper end and the lever means of connecting plate are connected. The utility model discloses can make things convenient for very much the while to change liquid to refining furnace or the casting stove in with molten metal magnesium liquid in the melting furnace safely, realize melting with refined separately operation, improve and smelt efficiency, the easy operation convenience.

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Номер записи: 4
12-08-2015 дата публикации

Multisystem multi-model mixing interactive information fusion positioning method

Номер: CN104833357A
Автор: ZHANG XIAOGUANG, WEI DONGYAN, LAI QIFENG, GONG XUPING, LI XIANGHONG, LI WEN
Принадлежит:

The invention discloses a multisystem multi-model mixing interactive information fusion positioning method. The method for tracking positioning of a target by adopting multiple models and multiple systems in the following dimensions: a motion model and an observation system against the problems of limited positioning range of a single observation system and inaccurate motion state description of a single motion model in the navigation positioning process. The method allows weighting fusion of positioning results of the multiple models and the multiple systems to be carried, and takes advantage in multisystem common positioning and multi-model parallel modeling positioning.

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Номер записи: 5
08-08-2023 дата публикации

Color measurement method of optically variable ink

Номер: CN116558645A
Автор: HUANG MIN, GONG XUPING, WEI ZIWEN, LI XIU, LIU YU
Принадлежит:

... ***The invention relates to a color measuring method for optically variable ink, which belongs to the technical field of color measurement and comprises the following steps: (1) connecting a multi-angle measuring instrument with a computer; (2) placing a sample to be measured on a measuring platform; (3) setting an included angle theta between a spectral energy receiving direction and a mirror reflection direction under a measurement condition and an included angle beta between an incident direction of an illumination light source and the spectral energy receiving direction; (4) controlling the multi-angle measuring instrument through software matched with the multi-angle measuring instrument, and completing the measurement of all samples one by one; and (5) exporting L * a * b * chromatic values of measurement results by using software matched with the measurement instrument, and calculating chromatic aberration of corresponding measurement conditions of multiple measurement results. According ...

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Номер записи: 6
01-07-2015 дата публикации

Height positioning method for calibrating barometric leveling result in real time by use of satellite positioning information

Номер: CN104748722A
Автор: LAI QIFENG, WEI DONGYAN, GONG XUPING, ZHANG XIAOGUANG, CHEN XIALAN, LI XIANGHONG, LI WEN, YUAN HONG, XU YING
Принадлежит:

The invention discloses a height positioning method for calibrating the barometric leveling result in real time by use of satellite positioning information. The characteristics that the barometric leveling stability is good within a short period, the relative height accuracy is high and the satellite positioning precision is high in a part of discrete observation points are combined, the barometric leveling result is calibrated in real time by use of the satellite positioning information; and a conditional formula for screening the satellite positioning result is acquired through experimental and theoretical calculation, the positioning result with low precision is removed, high-precision result is kept and is compared with the barometric leveling result, high-precision and continuous height positioning can be realized, the positioning precision is superior to the satellite positioning height precision and the barometric leveling precision and can reach 1m, and the probability of achieving ...

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Номер записи: 7
10-09-2014 дата публикации

Vision-aided satellite navigation and positioning method, and positioning machine

Номер: CN104035115A
Автор: WEI DONGYAN, LI XIANGHONG, YUAN HONG, XU YING, LAI QIFENG, GONG XUPING
Принадлежит:

The invention discloses a vision-aided satellite navigation and positioning method. By using the vision-aided satellite navigation and positioning method disclosed by the invention, online positioning can be only depended without the need of carrying out data acquisition in advance, and a great effect is achieved on positioning under indoor, underground, dense-building environments and the like. According to the vision-aided satellite navigation and positioning method disclosed by the invention, image information around a mobile terminal is acquired by virtue of video acquisition terminal, analysis and processing are carried out on a video streaming to extract the position change information of the mobile terminal relative to a reference point, so as to auxiliarily correct the global positioning information measured by a satellite navigation receiver, and finally a high-accuracy positioning result is obtained; compared with the traditional mode, in-advance data acquisition is not needed ...

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Номер записи: 8
04-04-2023 дата публикации

Color measurement and correction method between self-luminous display devices

Номер: CN115909990A
Автор: HUANG MIN, GAO XINYUAN, SHEN YUETONG, GONG XUPING, LI XIU
Принадлежит:

The invention relates to a method for measuring and correcting colors between self-luminous display equipment, which belongs to the technical field of printing, and comprises the following steps of: selecting display equipment with different primary color spectrums, organizing an observer to carry out color matching experiments at different observation visual angles, and measuring spectral energy distribution of a target color and an observer matching color by using a spectral radiometer; respectively substituting different view angle parameters of a CIE2006 color matching function, and calculating XYZ and u'v 'of colors on a target display screen and a matched display screen to obtain a chromaticity difference delta (u'v'); and selecting the color matching function which is most consistent with the observer according to the delta (u'v ') value calculated by different color matching functions. According to the method, different observers with normal color vision are organized to carry out ...

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Номер записи: 9
25-03-2015 дата публикации

Positioning method based on special sub-frames in TDD cellular mobile communication system

Номер: CN104469933A
Автор: WEI DONGYAN, XU YING, HAO WEINA, YUAN HONG, GONG XUPING, LI ZISHEN, HE ZHILI, ZENG MAOSHU
Принадлежит:

The invention discloses a positioning method based on special sub-frames in a TDD cellular mobile communication system. Frequency spread sequences with positioning information are added into a frame structure of an existing signal, in this way, indoor and outdoor positioning is achieved, resources and good covering of an existing cellular mobile communication network are utilized well, and indoor and outdoor navigation positioning is achieved just through simply upgrading the TDD cellular mobile communication system. According to the positioning method, it is unnecessary to erect radio emission equipment specially for meeting the navigation positioning requirement, it is unnecessary to apply for frequency resources alone, and extra maintaining is not needed. Compared with an existing system, interference with existing users will not occur, and therefore the positioning method has good forward compatibility; because the cellular mobile communication system has good covering in indoor and ...

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Номер записи: 10