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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 25. Отображено 25.
04-04-2023 дата публикации

Fault removal data remote recording system, method and device and storage medium

Номер: CN115914275A
Принадлежит:

The invention discloses a fault removal data remote recording system, which is applied to the field of RTK positioning and comprises a mobile station and a server, the mobile station is used for receiving the differential correction data of the server to carry out positioning calculation so as to upload obtained NMEA navigation positioning data to the server; the mobile station is also used for sending a troubleshooting data recording request to the server, so that the server starts troubleshooting data recording and records differential correction data and NMEA navigation positioning data of the mobile station in real time; and meanwhile, a signal for constructing a TCP channel is also sent to the server so as to construct a second TCP channel between the mobile station and the server, and the original observation data of the mobile station is sent to the server through the second TCP channel. The problem that in the prior art, a manufacturer needs to go to the site to cooperate with a ...

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04-07-2023 дата публикации

GPU-based depth map filtering method, system and device, and storage medium

Номер: CN116385251A
Принадлежит:

The invention provides a depth map filtering method based on a GPU. The depth map filtering method comprises the steps that a depth map to be filtered is divided into a plurality of equal-size thread blocks; for any thread block, determining a mark value of each pixel in the thread block, and obtaining an initial mark image with the same size as the depth image; for any thread block, starting from the first pixel at the upper left corner in the thread block, comparing the depth similarity of the first pixel with the depth similarity of the adjacent pixel: if the difference value of the depth values is smaller than a preset threshold value, judging that the similarity is high, and updating the mark value corresponding to the current pixel to the mark value corresponding to the adjacent pixel with the high similarity; otherwise, judging that the similarity is low, and not processing the current pixel; after traversal is completed, an updated mark graph is obtained; repeating the step until ...

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27-06-2023 дата публикации

RTK equipment based on energy monitoring and control method thereof

Номер: CN116338750A
Принадлежит:

The invention discloses RTK equipment based on energy monitoring, which is applied to the field of RTK positioning and comprises a main control module, a battery, an energy monitoring module and an intelligent voice module, two ends of the energy monitoring module are electrically connected with the battery and the main control module respectively, and the energy monitoring module is used for detecting discharge data of the battery and sending the discharge data to the main control module, so that the main control module calculates the electric quantity of the battery and the endurance time of the battery according to the discharge data of the battery; and the main control module is also electrically connected with the intelligent voice module and is used for playing the electric quantity of the battery of the RTK equipment and the endurance time of the battery to a user through the intelligent voice module. According to the invention, the problem that the use of the RTK equipment is affected ...

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29-10-2014 дата публикации

Beidou precise time service technology

Номер: CN104125029A
Принадлежит:

The invention discloses a Beidou precise time service technology. According to the technology, the Beidou second-generation satellite navigation system is used for carrying out high-precision dual-machine common-view time service, thereby solving a problem of poor accuracy of time and frequency transmission in the communication field and the national defence building of our country. On the basis of utilization of the Beidou second-generation machine, GPS, and a dual-satellite four-frequency special-purpose time service receiver as well as a pseudo-range difference and a synchronous pseudo-range difference of a mobile radio station, a precise clock difference between two receives can be calculated, wherein the precision can achieve the nanosecond level; and the clock difference is used for fulfill the following tasks: (1), precise determination of deviation between the user clock and the standard time; and (2), realization of precise synchronization of the user clocks at different places ...

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11-08-2023 дата публикации

Carrier phase difference method using Kalman filter capable of parallel processing

Номер: CN116577812A
Принадлежит:

The invention discloses a carrier phase difference method using a Kalman filter capable of parallel processing, which relates to the technical field of satellite positioning, and comprises the following steps: S1, carrying out data preprocessing on input moving station data and reference station data to obtain differential data; s2, selecting a reference satellite from the reference satellite list and other satellite lists on the premise of preferentially selecting a satellite with a relatively high elevation angle; s3, judging whether the reference satellite needs to be transformed or not; s4, calculating a frequency point set of the satellite to be transformed, and completing reference satellite transformation of all double-difference satellites by using a reference satellite transformation method; s5, updating the Kalman filter by using the differential data; and S6, ambiguity is fixed, position adjustment is carried out on the result of each double-difference satellite filter, and a ...

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23-06-2023 дата публикации

Communication signal detection method and system based on 5G emergency communication vehicle

Номер: CN116318490A
Принадлежит:

The invention relates to the technical field of communication, and discloses a communication signal detection method and system based on a 5G emergency communication vehicle, and the method comprises the following steps: S1, setting a 5G emergency communication vehicle which is provided with K RIS units; respectively constructing a channel matrix between the RIS and the sender, a channel matrix between the receiver and the RIS, and a channel matrix between the receiver and the sender; constructing a receiving matrix and a sending matrix; constructing a receiving matrix model according to the receiving matrix and the sending matrix; representing the receiving matrix model as a factor graph; s2, performing loop iteration on the factor graph by adopting a hybrid message passing algorithm based on a Gaussian approximation belief propagation rule and an expected propagation rule to obtain estimated values of a transmission matrix, a channel matrix and an RIS reflection coefficient which are ...

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27-08-2014 дата публикации

Beidou, GPS and GLONASS baseline vector combined solution method and system

Номер: CN104007447A
Принадлежит:

The invention discloses a Beidou, GPS and GLONASS baseline vector combined solution method which comprises the following steps: S1, observation data received by a satellite receiver is grabbed, and the observation data is pre-processed, wherein the observation data includes a phase accumulation value; S2, a floating point solution of the observation data is calculated, and the accurate integer ambiguity is obtained according to the floating point solution so as to work out a carrier observation fixed solution value; and S3, a model is established according to the double difference observation equation described in the invention to eliminate the clock difference error between a satellite and the satellite receiver. The invention further discloses a Beidou, GPS and GLONASS baseline vector combined solution system. By adopting the Beidou, GPS and GLONASS baseline vector combined solution method and the Beidou, GPS and GLONASS baseline vector combined solution system of the invention, data ...

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02-09-2015 дата публикации

RTK measuring equipment's battery cover mounting structure

Номер: CN0204614838U
Принадлежит:

RTK measuring equipment's battery cover mounting structure, including having the organism in battery chamber and be used for the battery cover in closing cap battery chamber, the battery cover include the mounting panel and with mounting panel sliding fit's sliding plate, the mounting panel articulates on the organism, be provided with first spacing groove on the sliding plate, be provided with the joint on the organism in a limiting groove so that battery cover and organism fixed connection's buckle, be provided with the second spacing groove on the sliding plate, have on the mounting panel set up set in the 2nd limiting groove and with second spacing groove sliding fit's protruding portion. The utility model discloses a RTK measuring equipment's battery cover mounting structure makes the limiting groove of buckle joint on this sliding plate alright the messenger's battery cover and organism fixed connection on the organism, with the battery encapsulation at battery intracavity, stable ...

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13-06-2023 дата публикации

Image matching enhancement method and enhancement system

Номер: CN116258879A
Принадлежит:

The embodiment of the invention relates to the technical field of aerial survey, and discloses an image matching enhancement method and system, and the method comprises the steps: calculating the feature similarity of image feature descriptors between to-be-processed image matching pairs according to the image feature point information corresponding to the to-be-processed image matching pairs; forming a feature point matching pair by two image feature points corresponding to the two image feature descriptors of which the feature similarity reaches a specified threshold value, so as to obtain a feature point matching pair set; calculating a first basis matrix of geometric constraints of epipoles of the two images corresponding to each feature point matching pair; deleting specified feature point matching pairs which do not meet the re-projection error range in the feature point matching pair set so as to determine a target feature point matching pair set; and outputting the to-be-processed ...

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09-01-2020 дата публикации

Saccular Cavopulmonary Assist Device

Номер: US20200009305A1
Принадлежит: GUANGDONG CARDIOVASCULAR INSTITUTE

The present disclosure relates to a saccular cavopulmonary assist device, including a shell, an inflow tube ( 6 ) and an outflow tube ( 4 ), wherein a blood storage cavity (A) and a power cavity (B) are arranged in the shell, and the power cavity (B) is used for providing contraction and relaxation power for the blood storage cavity (A); the inflow tube ( 6 ) is arranged at a position corresponding to the power cavity (B) on the shell, an outer end is used for communicating with the vena cava, and an inner end communicates with the blood storage cavity (A) after passing through the power cavity (B); the outflow tube ( 4 ) is arranged at a position corresponding to the blood storage cavity (A) on the shell, an outer end is used for communicating with the pulmonary artery, and an inner end communicates with the blood storage cavity (A). This device can assist the cavopulmonary circulation of the single ventricle, realize repeated blood drawing and pumping actions, provide the required power for the pulmonary circulation of the patient, and restore the biventricular blood flow in the human body; and because the arrangement of the inflow tube in the power cavity, the internal structure of this device is more compact, the overall shape is smaller, and the energy of the power cavity can be fully utilized.

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23-06-2023 дата публикации

RTK device with built-in radio station

Номер: CN116299613A
Принадлежит:

The invention relates to the field of RTKs, discloses RTK equipment with a built-in radio station, and solves the problems that the radio station is complex in installation, low in assembly efficiency and unstable after being assembled, the RTK equipment comprises a mainboard, the radio station and fixing parts, the side edge of the radio station is provided with a plurality of installation plates, the fixing parts are arranged corresponding to the installation plates, and the fixing parts are used for connecting the mainboard and the radio station; the fixing piece comprises a left fixing block and a right fixing block which are integrally formed, and the left fixing block and the right fixing block are the same in structure. The left fixing block is provided with a guide groove corresponding to the mounting plate, and the guide groove is used for being embedded with the mounting plate; the left fixing block is further provided with a through hole penetrating through the guide groove, ...

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29-10-2014 дата публикации

Beidou compatibility-based network RTK technology

Номер: CN104122569A
Принадлежит:

The invention discloses a Beidou compatibility-based network RTK technology. According to the technical scheme, on the basis of network ambiguity resolving and correction generation, all data processing modules can be compatible with the Beidou second-generation system, the GPS system, and the GLONASS system, so that a moving station can obtain a consistent high-precision RTK result in a CORS system coverage rang. Therefore, the high-precision positioning of the moving station can be well realized.

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12-05-2023 дата публикации

Road route rapid drawing method, system and device and storage medium

Номер: CN116109725A
Принадлежит:

The invention discloses a rapid road route drawing method, system and device and a storage medium, and the method comprises the steps: selecting a corresponding road route drawing method according to the user demand, obtaining corresponding road data from an existing road center line according to the selected road route drawing method, obtaining element data from the road data, and obtaining the element data from the element data; the road center line is improved according to the element data, and an improved road route is obtained; according to the method, different road auxiliary route drawing methods can be selected on the basis of an existing road center line according to actual requirements of users, so that road information is more perfect, and continuous changes of plane graphs including horizontal curves, cross sections, side slopes and the like can be conveniently observed in a planar graph.

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24-02-2016 дата публикации

Top cap mounting structure

Номер: CN0205052021U
Принадлежит:

The utility model discloses a top cap mounting structure, including the top cap, the cavity, waterproof circle and locking piece, the cavity has open -top, the top cap have be used for the lid should open -top's bottom opening, the inner wall of top cap is equipped with the annular groove, waterproof circle is set in the annular groove, and this waterproof circle is sealed to be replaced in open -top's edge, open -top's outer fringe protrusion has the buckle, the perisporium of top cap open have with buckle sliding fit and lock joint complex spout, this spout extends along the circumference of top cap, and the one end of this spout is used for replacing the buckle, the caulking groove that has with this spout intercommunication is opened to the other end of spout, locking piece inlays with the detachable mode to be adorned in this caulking groove. The utility model discloses install and remove simply, and three proofings stability is good.

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23-09-2015 дата публикации

Simple and efficient rooting method for peony test-tube plantlet

Номер: CN104920210A
Принадлежит:

The invention relates to a simple and efficient rooting method for peony test-tube plantlet. IBA (indole butyric acid) and vitamin B2 are added in a rooting culture medium; a rooting manner including dark culture and light culture in sequence is adopted; rooting is realized in one step by adopting the rooting method of the invention without changing the culture medium in the rooting process; rooting procedures are simplified and production cost is reduced; the rooting percentage reaches 70 percent, so that the rooting method is beneficial to improving production efficiency; callus tissues are barely not generated in base parts of tissue culture seedlings in the rooting process, so that the rooting method is beneficial to transplanting and survival of the tissue culture seedlings; the whole rooting period is 50 days, so that the culture period is greatly shortened and the production cost can be controlled.

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02-05-2023 дата публикации

Road design data processing method, system and device and storage medium

Номер: CN116049944A
Принадлежит:

The invention discloses a road design data processing method, system and device and a storage medium, and the method comprises the steps: obtaining road information according to a road design demand, processing the road information through a method of converting elements through an intersection method, obtaining element list information, processing the element list information through a preset method, and obtaining the element list information; obtaining target road data; according to the method, the problem that part of roads are reserved through intersection method data can be solved, more conditions are supported, meanwhile, the requirement for data processing of most intersection method and element method roads is met, and construction measurement of the roads is facilitated.

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02-09-2015 дата публикации

RTK measuring equipment's battery cover structure

Номер: CN0204614837U
Принадлежит:

RTK measuring equipment's battery cover structure, including organism and battery cover, battery cover detachable installs on the organism, the battery cover includes lid and slider, be provided with the spacing groove on the slider, be provided with the joint on the organism in limiting groove so that battery cover and organism fixed connection's buckle, be provided with one on the slider and be used for driving the gliding piece of stirring of slider, be provided with spacing hole on the lid, stir the piece set in spacing downthehole and with spacing hole sliding fit, this RTK measuring equipment's battery cover structure still includes a waterproof circle, and this waterproof ring of centre gripping is between slider and organism. The utility model discloses a RTK measuring equipment's battery cover structure, battery cover detachable installs on the organism, conveniently changes battery, easy operation, simultaneously can prevent effectively at the waterproof circle of centre gripping ...

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16-05-2023 дата публикации

Emergency communication method and system based on RTK and RTK receiver

Номер: CN116132962A
Принадлежит:

The invention discloses an emergency communication method based on RTK, and relates to the field of data communication, in particular to an emergency communication method and system based on RTK and an RTK receiver. The mobile station generates a distress signal; the mobile station sends the distress signal to the base station based on the wireless data radio; and the base station collects the distress signal and sends the distress signal to the target end based on the cellular network. An RTK receiver equipped by a help seeker is in bridge connection with a target end of a help seeked person through a base station to carry out emergency communication, so that field surveying and mapping personnel can realize the emergency communication requirement under an emergency condition only by utilizing RTK measuring equipment carried by the field surveying and mapping personnel without adding any additional equipment; the emergency communication cost is low, the field operation risk of surveying ...

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04-07-2023 дата публикации

Kalman filtering efficiency optimization method and system for RTK algorithm

Номер: CN116381742A
Принадлежит:

The invention provides a Kalman filtering efficiency optimization method and system for an RTK algorithm. The method comprises the steps that a state transition matrix is acquired according to satellite signals received by a receiver, and a measurement updating coefficient matrix is acquired according to approximate position coordinates of the receiver; constructing a Kalman filtering model; matrix multiplication in the Kalman filtering model is optimized by using a triple array and a matrix multiplication optimization method; calculating standard innovation of the Kalman filtering model, performing chi-square test on the standard innovation, and when the chi-square test does not pass, removing the corresponding observed value vector in the process of calculating the element of the maximum absolute value of the standard innovation, and performing chi-square test again until the chi-square test passes; utilizing an upper triangular matrix multiplication optimization method to optimize the ...

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04-08-2023 дата публикации

In-vitro rapid propagation method for FeroxArgentea of European Ilex

Номер: CN116530413A
Принадлежит:

The invention discloses a Ferox Argentea in-vitro rapid propagation method for European Ilex. The method comprises the following steps: taking an explant; disinfecting and sterilizing; starting culture; carrying out multiplication culture; performing rooting culture; and acclimatizing and transplanting. According to the method disclosed by the invention, an efficient in-vitro rapid propagation technology of the Ilex rubescens is constructed for the first time, and under the technical conditions, the proliferation rate of test-tube plantlets is 2.62, the rooting rate is 100%, and the transplanting survival rate is 74.58%, so that technical support is provided for in-vitro rapid propagation and industrial popularization of the Ilex rubescens' Foerox Argentea '. Compared with a traditional propagation method (sowing and grafting) of the European holly, the technology belongs to sterile culture in a test tube, the propagation process is not limited by time, and annual production can be achieved ...

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23-12-2015 дата публикации

Watertight fittings of three proofings equipment

Номер: CN0204906928U
Принадлежит:

The utility model discloses a watertight fittings of three proofings equipment including the battery cover, combine board, buckle, draw -in groove and waterproof circle, combines the board to be located the three proofings body of equipment, and the inside cavity that is used for the holding battery that is equipped with of casing, combine to set up on the board battery window that switches on with the cavity, the battery window is used for allowwing the battery passes through, the buckle is located the downside of battery cover, the draw -in groove is located the downside that combines the board, the battery cover passes through with combining the board buckle and the inseparable lock of draw -in groove, and waterproof circle is located the battery cover and combines the contact surface of board, and the upside of battery cover is articulated with the upside that combines the board, still includes to be used for drawing forth the outside drainage strip of watertight fittings with ponding ...

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30-06-2023 дата публикации

Method, device and equipment for calculating minimum back break result of tunnel and medium

Номер: CN116361884A
Принадлежит:

The invention discloses a tunnel minimum back break result calculation method and device, equipment and a medium, and the method comprises the steps: determining plane coordinates in a tunnel at a measurement point position according to pre-obtained tunnel data, and the tunnel data comprises a plurality of line elements on a contour line of the tunnel; judging whether the line element obtained at the last time is a straight line element or not, if yes, traversing all the line elements according to an anticlockwise sequence from the line element obtained at the last time, determining a circle center coordinate of the traversed first curve element, and determining a virtual circle center coordinate; and obtaining a minimum back break result according to the virtual circle center coordinate. According to the method, the condition that the line element is a straight line and a curve can be distinguished firstly, if the line element is the straight line, the coordinate position of the virtual ...

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23-06-2023 дата публикации

Edge computing method and system in multi-source heterogeneous network environment

Номер: CN116318465A
Принадлежит:

The invention discloses an edge computing method and system in a multi-source heterogeneous network environment. The method comprises the following steps that k local computing processing units LCPUs receive local observation signals of target signals through distributed antennas; a local calculation processing unit LCPU constructs a generalized linear model according to a local observation signal and a corresponding observation matrix, the generalized linear model is converted into a graph model through an iGEC algorithm for solving, and local information of a target signal is obtained; the center FC and the local computing processing unit LCPU are combined to carry out information exchange, and global information of the target signal is obtained through iterative estimation; according to the method, the estimation accuracy of signal detection is improved, and local computing resources of the LCPU are fully utilized.

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16-07-2014 дата публикации

Incline compensation method of GNSS measuring device

Номер: CN103926608A
Принадлежит:

The invention relates to an incline compensation method of a GNSS measuring device. According to data given by a six-axis sensor used in the GNSS measuring device, a series of calculations are performed on the most original magnetic field data and acceleration data, and the attitude angle of the GNSS measuring device is obtained. With the combination of the fixed size of the GNSS measuring device and the measured data, accurate coordinates of the contact point of a centering pole and the ground can be precisely obtained through the calculation. According to the incline compensation method of the GNSS measuring device, errors caused by human factors in measurement can be avoided, the measured data are automatically corrected, and therefore the measuring efficiency and the precision of the measured data are improved.

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20-08-2014 дата публикации

Method and device for storing records in GNSS measuring device in automatic circulated mode

Номер: CN103995265A
Автор: LI NING, WEN SHUSHENG
Принадлежит:

The invention relates to a method and device for storing records in a GNSS measuring device in an automatic circulated mode. The method comprises the steps of predicting whether there is enough storage space to record all the GNSS original observation data of the day at 00:00 UTC of each day, establishing a file and saving the GNSS original observation data of the day in the file if yes, and sorting all the files with UTC time information and deleting the files with the earliest UTC time if not. According to the method and device, observation data with the earliest time can be automatically deleted so that enough storage space can be obtained, and the problem that measurement staff need to delete static observation data manually is solved.

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