-
公开(公告)号：US12104920B2
公开(公告)日：2024-10-01
申请号：US18478924
申请日：2023-09-29
CPC分类号： G01C21/3804 , G01C21/02 , G01C21/20 , G01C21/3602 , G01C21/387 , G01C21/3889 , G05D1/0274 , G06F16/29 , G06V20/588
摘要： Systems, methods, and devices are disclosed for synchronizing map updates for a navigating autonomous vehicle. A management service on a managing node can receive an update to a portion of a first map, where a limited visibility map, which is a subset of the first map, can be determined based on a geographical area around an autonomous vehicle navigating a route. The limited visibility map can be synchronized among all the nodes while the autonomous vehicle is using the limited visibility map by the management service delivering, to a plurality of downstream nodes, the update to the limited visibility map when the update does not modify a portion of the limited visibility map, and by bypassing, to the plurality of downstream nodes, the update to the limited visibility map when the update modifies a portion of the limited visibility map.
-
公开(公告)号：US12104907B2
公开(公告)日：2024-10-01
申请号：US17192978
申请日：2021-03-05
发明人： Joshua Lentz , Kevin Brink
CPC分类号： G01C21/025 , G02B5/10 , G02B19/0019 , G02B19/0076
摘要： A compact celestial tracker includes a platform, a rotation stage that rotatably coupled to the platform to rotate a plane of the platform about a rotation axis and that supports the platform on a substrate, an off-axis parabolic mirror mounted to one side of the platform and having a focal plane directed at an acute angle that is between the rotation axis and the plane of the platform to reflect and focus the beam at a point above another side of the platform, and a detector coupled to the other side of the platform to receive and detect the reflected and focused beam.
-
公开(公告)号：US20240289968A1
公开(公告)日：2024-08-29
申请号：US18573667
申请日：2022-06-22
CPC分类号： G06T7/246 , G01C21/025 , G01C21/24 , B64G1/361 , G06T2207/10032 , G06T2207/30252
摘要： In an embodiment, there is provided a method for determining a spacecraft instantaneous velocity using starlight. The method includes determining, by a star pairing module, a plurality of star pairs in a selected star field image. The selected star field image includes a plurality of star images. The method includes estimating, by a line of sight estimation module, an apparent bearing direction to each star in at least some of the plurality of star pairs; determining, by the line of sight estimation module, a respective apparent inter-star angle for each star pair of the least some star pairs; and estimating, by a velocity estimation module, a spacecraft velocity to within a total velocity error based, at least in part, on the apparent inter-star angles.
-
4.发明授权公开(公告)号：US11919663B2
公开(公告)日：2024-03-05
申请号：US17423003
申请日：2020-01-15
发明人： Emanuele Cidonio , Fabio Curti , Daniele Luchena , Marco Moriani , Dario Spiller
CPC分类号： B64G1/244 , B64G1/361 , G01C21/025 , B64G1/245
摘要： The invention concerns a method for estimating the angular velocity (and, preferably, also the attitude) of a space platform (for example, a satellite, a space vehicle, or a space station) using only the information provided by one or more optical sensors, such as one or more star trackers, one or more colour and/or black and white cameras or video cameras, one of more infrared sensors, etc.
-
公开(公告)号：US11808600B2
公开(公告)日：2023-11-07
申请号：US17550471
申请日：2021-12-14
CPC分类号： G01C21/3804 , G01C21/02 , G01C21/3602 , G01C21/387 , G01C21/3889 , G05D1/0274 , G06F16/29 , G06V20/588
摘要： Systems, methods, and devices are disclosed for synchronizing map updates for a navigating autonomous vehicle. A management service on a managing node can receive an update to a portion of a first map, where a limited visibility map, which is a subset of the first map, can be determined based on a geographical area around an autonomous vehicle navigating a route. The limited visibility map can be synchronized among all the nodes while the autonomous vehicle is using the limited visibility map by the management service delivering, to a plurality of downstream nodes, the update to the limited visibility map when the update does not modify a portion of the limited visibility map, and by bypassing, to the plurality of downstream nodes, the update to the limited visibility map when the update modifies a portion of the limited visibility map.
-
公开(公告)号：US20230098784A1
公开(公告)日：2023-03-30
申请号：US18075142
申请日：2022-12-05
发明人： Richard A Hutchin
摘要： Aspects of the disclosure are directed to acquiring aligned geographic coordinates of a vertical position. In one aspect, a vertical navigation system includes a light source to generate a source beam; a beam splitter to generate a first and a second source references derived from the source beam; a hollow retroreflector to produce a first and a second vertical references derived from the first and the second source references; an attitude sensor to capture a plurality of reference stars and to measure a first set of angles for the first vertical reference and a second set of angles for the second vertical reference, the first set of angles and the second set of angles are relative to the plurality of reference stars; and a processor to produce the aligned geographical coordinates using the first set of angles, the second set of angles, a gravity vector measurement and a time signal.
-
7.发明申请公开(公告)号：US20220236062A1
公开(公告)日：2022-07-28
申请号：US17629203
申请日：2020-07-22
申请人： CUBE EARTH CO., LTD.
发明人： Masafumi TAKEDA
摘要： The present invention provides a method for imparting unique identifiers that do not overlap each other to individual position spaces in the case of latitude and longitude information or even in the case of height information also included in addition thereto. A longitude line passing through the coordinate origin is divided by the length of one side of a unit grid, and a latitude value inside unit grids is calculated. An accumulated error is calculated in a case where latitude values inside the unit grids are accumulated for one round in a longitude line direction of a celestial body, and an error per unit grid is calculated based on the calculated accumulated error. The number of unit grids included in one block in the longitude line direction is specified so that a reference error per block is equal to or smaller than one thousandth of the accumulated error, and thus a reference latitude is set. A reference longitude is set by the same calculation process for each latitude line that is determined based on the set reference latitude, reference points are specified sequentially from the coordinate origin based on the set reference latitude and reference longitude, and a unique identifier is imparted to each unit grid located in a block with the reference points set as its vertices.
-
8.发明授权公开(公告)号：US11181729B2
公开(公告)日：2021-11-23
申请号：US16322226
申请日：2017-08-04
申请人： UNISTELLAR
摘要： The invention relates to an optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing means and restoring means. The invention also relates to a method for producing such a digital image.
-
公开(公告)号：US11125562B2
公开(公告)日：2021-09-21
申请号：US15459557
申请日：2017-03-15
发明人： Robin Mark Adrian Dawson , Juha-Pekka J. Laine , Murali V. Chaparala , Charles Arant , Matthew T. Jamula
摘要： A navigation system includes a monocentric lens and one or more curved image sensor arrays disposed parallel and spaced apart from the lens to capture respective portions, not all, of the field of view of the lens.
-
公开(公告)号：US10942372B2
公开(公告)日：2021-03-09
申请号：US15951177
申请日：2018-04-12
发明人： Ke Wu
摘要： The present disclosure relates to a method and a device for controlling glasses, and a storage medium. The method includes: acquiring positioning information of a user wearing the glasses and naked eye visual acuity values of the user; determining target diopters of lenses of the glasses according to the naked eye visual acuity values of the user and the positioning information of the user using a diopter mapping table, wherein the lenses are used to correct the user's visual acuity, and the diopter mapping table is a preset corresponding relationship among positioning information, naked eye visual acuity values and target diopters; and adjusting diopters of the lenses to the target diopters.
-
-
-
-
-
-
-
-
-
搜索结果
758 条记录 (耗时 0.022 秒)
