Multi-sensor-based unmanned aerial vehicle and method for controlling same

    公开(公告)号:US11619952B2

    公开(公告)日:2023-04-04

    申请号:US17013465

    申请日:2020-09-04

    Abstract: An unmanned aerial vehicle may include: a sensor part configured to acquire inertia information or position information of the unmanned aerial vehicle; and a controller. The controller is configured to estimate the position of the unmanned aerial vehicle by applying the information acquired by the sensor part to an extended Kalman filter and control movement of the unmanned aerial vehicle, based on the estimated position of the unmanned aerial vehicle. The sensor part includes: an inertia sensor configured to acquire the inertia information of the unmanned aerial vehicle; a tag recognition sensor configured to recognize a tag attached to a rack and acquire absolute position information of the unmanned aerial vehicle; and an image sensor attached to the unmanned aerial vehicle so as to acquire an image of the movement environment of the unmanned aerial vehicle.

    Method and system for providing flight guidance for an aircraft

    公开(公告)号:US11599126B2

    公开(公告)日:2023-03-07

    申请号:US16962358

    申请日:2019-01-16

    Abstract: Methods and systems for providing vertical flight guidance for an aircraft. Vertical flight guidance for the aircraft is provided by an aircraft computer in an altitude capture mode for commanding the aircraft to capture a target altitude. At least one engine inoperative condition is detected by the computer, while in the altitude capture mode. In response to detecting the at least one engine inoperative condition, the computer causes an automatic transition (e.g., no pilot action on a flight level change (FLC) pushbutton on a flight control panel) of the vertical flight guidance for the aircraft from the altitude capture mode to an already existing mode that is flight level change with modified control parameters and provides vertical flight guidance in the flight level change mode for commanding the aircraft to capture the target altitude while maintaining airspeed of the aircraft substantially at a target airspeed.

    Composite vertical profile display systems and methods

    公开(公告)号:US11574549B2

    公开(公告)日:2023-02-07

    申请号:US17112140

    申请日:2020-12-04

    Abstract: Methods and systems are provided for guiding or otherwise assisting operation of an aircraft when diverting from a flight plan. One method involves determining a gliding trajectory for the aircraft based at least in part on a current altitude of the aircraft, providing a graphical representation of the gliding trajectory for the aircraft, identifying a plurality of landing locations within a range defined by the gliding trajectory from the aircraft, and for each landing location of the plurality of landing locations, providing a graphical representation of a respective landing location with respect to the gliding trajectory at a respective altitude associated with the respective landing location and at a respective distance with respect to a graphical representation of the aircraft corresponding to a respective geographic distance between a current location of the aircraft and the respective landing location.

    Determining Characteristics of a Water Surface Beneath a Vehicle in Motion

    公开(公告)号:US20220382300A1

    公开(公告)日:2022-12-01

    申请号:US17875942

    申请日:2022-07-28

    Abstract: An example computing system is configured to: (i) receive, from one or more sensors of a vehicle in motion over a body of water, a set of sensor data, (ii) based on the set of sensor data, determine (a) an instantaneous distance between the vehicle and a surface of the body of water and (b) an instantaneous slope of the surface of the body of water, (iii) based on at least one of the instantaneous distance or the instantaneous slope, determine a statistical representation of the surface of the body of water, and (iv) based on the determined statistical representation of the surface of the body of water, adjust one or more control surfaces of the vehicle to change one or more of a speed, altitude, heading, or attitude of the vehicle.

    Systems and methods for autonomous deorbiting of a spacecraft

    公开(公告)号:US11465782B2

    公开(公告)日:2022-10-11

    申请号:US16553206

    申请日:2019-08-28

    Abstract: In an example, a method for deorbiting a spacecraft is described. The method includes selecting a target landing site for deorbiting the spacecraft. The method includes determining a range target and a velocity target for reaching a predicted atmospheric entry location. The method includes determining a back-propagated orbit state estimate of the spacecraft. The method includes comparing the back-propagated orbit state estimate to a known orbit state of the spacecraft to determine that the back-propagated orbit state estimate has converged with the known orbit state. The method includes calculating based on determining that the back-propagated orbit state estimate has converged with the known orbit state, (a) an estimated time of ignition for a propulsion system of the spacecraft and (b) an estimated burn velocity vector of the propulsion system using the range target and the velocity target. The method includes performing a burn pulse by the propulsion system.

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