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公开(公告)号：US11650331B2
公开(公告)日：2023-05-16
申请号：US17370871
申请日：2021-07-08
CPC分类号： G01S19/45 , G01S19/42 , G01C11/00 , G01C11/025 , G01C21/005 , G01C21/04 , G01S19/421
摘要： Integrated Visual Geo-referencing Target Unit ABSTRACT A georeferencing target unit including: a generally planar top surface including a visual marker structure on the top surface, dimensioned to be observable at a distance by a remote visual capture device; an internal GPS tracking unit tracking the current position of the target unit; a microcontroller and storage means for storing GPS tracking data; and wireless network interconnection unit for interconnecting wirelessly with an external network for the downloading of stored GPS tracking data; a power supply for driving the GPS tracking unit, microcontroller, storage and wireless network interconnection unit, a user interface including an activation mechanism for activating the internal GPS tracking unit to track the current position of the target unit over an extended time frame and store the tracked GPS tracking data in the storage means.
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公开(公告)号：US11644527B2
公开(公告)日：2023-05-09
申请号：US16291351
申请日：2019-03-04
发明人： Patrick O'Shea , William W. Whitacre , Christopher C. Yu , Juha-Pekka J. Laine , Charles A. McPherson
摘要： Local terrain feature location data is obtained from a local sensor device at a user location without a prior-known global position. The local terrain feature location data characterizes relative distances and directions to a plurality of local terrain features nearest to the user location. Global terrain feature location data stored in at least one hardware memory device is accessed. The global terrain feature location data characterizes relative distances and directions between a plurality of distinctive terrain features located in a defined terrain region in terms of absolute global location coordinates. The local terrain feature location data is compared to the global terrain feature location data to develop multiple pattern matching hypotheses, wherein each pattern matching hypothesis characterizes a likelihood of a subset of the local terrain features matching a subset the global terrain features. Global location coordinates for the user location is then determined from the pattern matching hypotheses.
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公开(公告)号：US11237003B2
公开(公告)日：2022-02-01
申请号：US16890140
申请日：2020-06-02
发明人： Juha-Pekka J. Laine , Gregory P. Blasche , Benjamin F. Lane , Daniel M. Meiser , Eric T. Hoke , Matthew T. Jamula , Robin M. A. Dawson , Stephen P. Smith
摘要： An image-based navigation system is arranged to obtain a terrain image of a target terrain from one or more image sensors at a low altitude imaging location. The terrain image includes at least one celestial image feature and at least one terrain feature. Map database information stored in at least one hardware memory device is accessed and compared to the at least one celestial image feature and the at least one terrain feature in the terrain image to determine absolute location coordinates of the imaging location.
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公开(公告)号：US20210254978A1
公开(公告)日：2021-08-19
申请号：US17168813
申请日：2021-02-05
发明人： Jianqiang Zhu
摘要： The present invention discloses a module for robot navigation, an address marker and an associated robot. The module divides a whole workspace area for robot traveling into a plurality of module areas, and each module area is internally provided with a first magnetic piece having a polarity of an N pole or an S pole and a second magnetic piece having a polarity different from the polarity of the first magnetic piece. The first magnetic piece is a first magnetic strip, and the second magnetic piece is a second magnetic strip. The first magnetic strip is arranged in the Y-axis direction, and the second magnetic strip is arranged in the X-axis direction. A third magnetic strip and a fourth magnetic strip are further included. The four strips are in cross arrangement. The polarity of the second magnetic strip, the polarity of the third magnetic strip and the polarity of the fourth magnetic strip are the same. A plurality of magnetic induction sensors and an address marker recognition device are installed at the bottom of the robot. The robot can travel forward or backward or turn to a target module area according to instructions and collected marker information. The module for robot navigation, the address marker and the associated robot according to the present invention have beneficial effects of reliable and accurate positioning, low cost and convenient maintenance.
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公开(公告)号：US10983223B2
公开(公告)日：2021-04-20
申请号：US16045076
申请日：2018-07-25
发明人： Andrew J. Moore , Scott B. Dorsey
IPC分类号： G05D1/00 , B64C39/02 , H04W8/08 , G01S5/02 , G01S19/46 , G05D3/00 , G01S19/48 , G05D1/02 , G01S19/51 , G01C21/20 , G01S5/10 , G01S5/14 , G01C21/04 , G05D1/10
摘要： A method for determining geolocation of a UAV near a power grid includes detecting, via a transceiver, a carrier signal transmitted from a first grid node to identify the node's fixed geolocation. A response signal may be transmitted from a second grid node in response to the carrier signal to identify a fixed geolocation of the second grid node, or the UAV may process the carrier signal. A processor determines time-of-flight of the carrier signal, e.g., using the response signal, and derives the UAV's geolocation using the time-of-flight. Determining time-of-flight may include referencing a lookup table indexed by time-of-arrival at the transceiver of the modulated carrier and response signals. A timestamp may indicate time-of-transmission of the carrier and response signals, respectively. Deriving geolocation may include subtracting time-of-transmission of the response signal from that of the carrier signal. A system includes the processor and transceiver.
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公开(公告)号：US10914589B2
公开(公告)日：2021-02-09
申请号：US15803225
申请日：2017-11-03
发明人： Jianqiang Zhu
摘要： The present invention discloses a module for robot navigation, an address marker and an associated robot. The module divides a whole workspace area for robot traveling into a plurality of module areas, and each module area is internally provided with a first magnetic piece having a polarity of an N pole or an S pole and a second magnetic piece having a polarity different from the polarity of the first magnetic piece. The first magnetic piece is a first magnetic strip, and the second magnetic piece is a second magnetic strip. The first magnetic strip is arranged in the Y-axis direction, and the second magnetic strip is arranged in the X-axis direction. A third magnetic strip and a fourth magnetic strip are further included. The four strips are in cross arrangement. The polarity of the second magnetic strip, the polarity of the third magnetic strip and the polarity of the fourth magnetic strip are the same. A plurality of magnetic induction sensors and an address marker recognition device are installed at the bottom of the robot. The robot can travel forward or backward or turn to a target module area according to instructions and collected marker information. The module for robot navigation, the address marker and the associated robot according to the present invention have beneficial effects of reliable and accurate positioning, low cost and convenient maintenance.
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公开(公告)号：US10598493B2
公开(公告)日：2020-03-24
申请号：US15959960
申请日：2018-04-23
发明人： Jianqiang Zhu
摘要： The present invention discloses a module for robot navigation, an address marker and an associated robot. The module divides a whole workspace area for robot traveling into a plurality of module areas, and each module area is internally provided with a first magnetic piece having a polarity of an N pole or an S pole and a second magnetic piece having a polarity different from the polarity of the first magnetic piece. The first magnetic piece is a first magnetic strip, and the second magnetic piece is a second magnetic strip. The first magnetic strip is arranged in the Y-axis direction, and the second magnetic strip is arranged in the X-axis direction. A third magnetic strip and a fourth magnetic strip are further included.
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公开(公告)号：US20200025571A1
公开(公告)日：2020-01-23
申请号：US16512481
申请日：2019-07-16
摘要： A navigation system comprising: an inertial navigation system, INS, arranged to provide an INS position estimate and an INS attitude estimate; a terrain based navigation system arranged to provide a terrain based position estimate; a star tracker system arranged to provide a star tracker position and/or attitude estimate; a navigation filter arranged to receive the INS position estimate, the terrain based position estimate, the INS attitude estimate and the star tracker position and/or attitude estimate; the navigation filter arranged to determine an INS error state based at least on the INS position estimate, the terrain based position estimate, the INS attitude estimate and the star tracker position and/or attitude estimate; and the navigation system arranged to output a navigation solution comprising the INS position estimate corrected by the INS error state and the INS attitude estimate corrected by the INS error state.
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9.发明授权公开(公告)号：US10302769B2
公开(公告)日：2019-05-28
申请号：US15407391
申请日：2017-01-17
申请人： Harris Corporation
IPC分类号： G01S19/03 , G06T7/73 , G01C21/04 , G01S5/00 , G06F17/00 , G06F19/00 , G06K9/00 , G06T3/00 , G07C5/08 , H04B7/185
摘要： A system for monitoring marine vessels using a satellite network may include a plurality of satellite payloads to be carried by respective satellites. Each satellite payload may include a communications interface configured to communicate via the satellite network, a radio frequency (RF) transceiver configured to communicate with the plurality of marine vessels, and a controller cooperating with the communications interface and the RF transceiver. The controller may obtain automatic identification system (AIS) data including vessel position and call sign information via the RF transceiver, and communicate the AIS system data via the communications interface. The system may further include a terrestrial station configured to receive the AIS data, process aerial marine imagery using a fractal algorithm to assign respective vessel classifications to a plurality of marine vessels, and correlate the vessel classifications with AIS data.
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公开(公告)号：US10274323B1
公开(公告)日：2019-04-30
申请号：US16147625
申请日：2018-09-29
申请人： MAPSTED CORP.
IPC分类号： G01C21/04 , G01C21/20 , G06K9/00 , H04W4/029 , G06F12/0862
摘要： A method and system localizing a mobile device along a pedestrian route traversed in an indoor area, the mobile device including a processor and a memory. The method executed in the processor and comprises localizing the mobile device to an estimated first position within the indoor area based on accessing, from a first memory tier of the memory, a first portion fingerprint data that includes fingerprint data of a first subset area of the indoor area, the first subset area at least partly surrounding the estimated first position, detecting a traversal of the mobile device along the route to an estimated second position within the indoor area, and when a difference between the estimated first and second positions exceeds a threshold distance, replacing the first portion fingerprint data of the first memory tier upon pre-fetching a second portion fingerprint data, the second portion fingerprint data including fingerprint data of a second subset area of the indoor area, the second subset area at least partly surrounding the estimated second position.
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