Method and an apparatus for controlling a UAV, and a UAV take-off system
First Claim
1. A method for controlling an unmanned aerial vehicle (UAV), the UAV comprising at least one rotor, the method comprising the steps of:
- receiving a take-off signal;
initiating the at least one rotor to operate with a first preset rotation acceleration in response to the take-off signal;
detecting a take-off status information of the UAV, the take-off status information at least comprising a vertical velocity of the UAV and a current height of the UAV;
determining whether the detected vertical velocity of the UAV reaches a descending velocity threshold;
adjusting the at least one rotor in response to the determination of the detected vertical velocity of the UAV;
determining whether the detected current height of the UAV is equal to or greater than a threshold; and
sending a hover signal to the at least one rotor to enable the UAV to hover in the current height in response to the determination that the detected current height of the UAV is equal to or greater than the threshold;
wherein the step of adjusting comprises;
in response to the determination that the vertical velocity of the UAV is less than or equal to the descending velocity threshold, controlling the at least one rotor to operate with the first preset rotation acceleration, until it is determined that the current height of the UAV being equal to or greater than the threshold.
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Accused Products
Abstract
A method for controlling an unmanned aerial vehicle (UAV) is provided. The UAV comprises at least one rotor. The method includes receiving a take-off signal; initiating the at least one rotor to operate with a first preset rotation acceleration in response to the take-off signal; detecting a take-off status information of the UAV, the take-off status information at least comprising a current height of the UAV; determining whether the detected current height of the UAV is equal to or greater than a threshold; and sending a hover signal to the at least one rotor to enable the UAV to hover in the current height in response to the determination that the detected current height of the UAV is equal to or greater than the threshold.
16 Citations
14 Claims
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1. A method for controlling an unmanned aerial vehicle (UAV), the UAV comprising at least one rotor, the method comprising the steps of:
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receiving a take-off signal; initiating the at least one rotor to operate with a first preset rotation acceleration in response to the take-off signal; detecting a take-off status information of the UAV, the take-off status information at least comprising a vertical velocity of the UAV and a current height of the UAV; determining whether the detected vertical velocity of the UAV reaches a descending velocity threshold; adjusting the at least one rotor in response to the determination of the detected vertical velocity of the UAV; determining whether the detected current height of the UAV is equal to or greater than a threshold; and sending a hover signal to the at least one rotor to enable the UAV to hover in the current height in response to the determination that the detected current height of the UAV is equal to or greater than the threshold; wherein the step of adjusting comprises;
in response to the determination that the vertical velocity of the UAV is less than or equal to the descending velocity threshold, controlling the at least one rotor to operate with the first preset rotation acceleration, until it is determined that the current height of the UAV being equal to or greater than the threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for controlling an unmanned vehicle (UAV), the UAV comprises at least one rotor, the apparatus comprising:
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a receiver configured to receive a take-off signal; an initiator configured to initiate at least one rotor of the rotor assembly to operate with a first preset rotation acceleration in response to the take-off signal; a detector configured to detect a take-off status information of the UAV, the take-off status information at least comprising a vertical velocity of the UAV and a current height of the UAV; a determining module configured to determine whether the detected vertical velocity of the UAV reaches a descending velocity threshold, and determine whether the detected current height of the UAV is equal to or greater than the threshold; and a controller configured to adjust the at least one rotor in response to the determination of the detected vertical velocity of the UAV and send a hover signal to the at least one rotor to enable the UAV to hover in the current height in response to the detected current height of the UAV being greater than or equal to a threshold; wherein the controller is further configured to control, in response to the determination that the vertical velocity of the UAV is less than or equal to the descending velocity threshold, the at least one rotor to operate with the first preset rotation acceleration, until it is determined that the current height of the UAV being equal to or greater than the threshold.
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14. A UAV take-off system, comprising:
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a UAV comprising at least one rotor; a take-off platform configured to permit the UAV to take off; and wherein the UAV is configured to initiate the at least one rotor to operate with a first preset rotation acceleration, detect a vertical velocity of the UAV and a current height and adjust a rotation speed of the at least one rotor in response to a determination of whether the detected vertical velocity of the UAV reaches a descending velocity threshold, such that the UAV is enabled to hover in the current height upon the detected current height of the UAV being greater than or equal to a threshold, and wherein the UAV is further configured to control, in response to the determination that the vertical velocity of the UAV is less than or equal to the descending velocity threshold, the at least one rotor to operate with the first preset rotation acceleration, until it is determined that the current height of the UAV being equal to or greater than the threshold.
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Specification