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Gravity center balancing method of unmanned aerial vehicle and unmanned aerial vehicle

A drone and trim technology, applied in the field of drones, can solve problems such as crashes of drones, difficulty in flying drones normally and smoothly, and affecting normal operation of drones, so as to improve flight reliability and service life , Ensure load consistency, improve service life and reliability

Active Publication Date: 2020-11-17
BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the center of gravity of the UAV shifts, it will make it difficult for the UAV to fly normally and smoothly, and even cause the UAV to crash
Especially for multi-blade UAVs, when the center of gravity is seriously shifted, the motor on the side near the center of gravity is likely to increase due to the load of the motor ESC, which will affect the normal operation of the UAV.

Method used

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  • Gravity center balancing method of unmanned aerial vehicle and unmanned aerial vehicle
  • Gravity center balancing method of unmanned aerial vehicle and unmanned aerial vehicle
  • Gravity center balancing method of unmanned aerial vehicle and unmanned aerial vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] figure 1 The structure diagram of the unmanned aerial vehicle provided for the embodiment of the present invention, such as figure 1 As shown, this embodiment provides an unmanned aerial vehicle, which can be applied to fields such as border patrol, aerial photography, distribution, construction site surveying and mapping, agricultural plant protection, and manned flight. This embodiment does not discuss specific application scenarios of unmanned aerial vehicles. limit. In this embodiment, the drone is taken as an example of a manned drone for description, but it can be understood that the drone provided by the present invention can also be a non-manned drone.

[0042] Specifically, the UAV includes a body 3, a rotor 2, a flight control system, a center of gravity trimming device 1, a landing gear 4, and the like. The body 3 is made of metal material, which provides support and protection for the whole drone, and the body 3 is arranged symmetrically along its longitud...

Embodiment 2

[0060] This embodiment provides a method for balancing the center of gravity of an unmanned aerial vehicle and an unmanned aerial vehicle. Compared with the first embodiment, the basic structure of the unmanned aerial vehicle provided by this embodiment is the same as that of the first embodiment, only the rotor 2 and the flight controller There are differences in system settings, and this embodiment will not repeat the same structure as that of Embodiment 1.

[0061] In this embodiment, only one set of rotors 2 is provided, and the central axis of rotation of the rotors 2 passes through the center of gravity of the drone itself. The drive control unit includes a steering gear, and there are multiple steering gears for controlling the periodic pitch of the propeller in the rotor 2 so as to adjust the flight attitude of the drone.

[0062] The setting of the single-rotor UAV is a conventional setting in this field, and this embodiment does not limit and repeat the specific stru...

Embodiment 3

[0065] This embodiment provides a drone, and compared with Embodiment 1 and Embodiment 2, there is only a difference in the setting of the center of gravity balance device 1 in this embodiment, other settings of the drone can refer to Embodiment 1 or implement Setting is performed in Example 2, which will not be repeated in this embodiment.

[0066] The center of gravity balance device 1 provided by this embodiment includes: a first rail 11 and a second rail 12 connected vertically, the first rail 11 can rotate around the center line of its length direction, and the second rail 12 can rotate along the center line of the first rail 11. Sliding along the length direction, the counterweight 13 is slidably connected to the second track 12 , and the counterweight 13 can slide along the length direction of the second track 12 .

[0067] The center of gravity balance device 1 provided in this embodiment can make the counterweight 13 slide on the second rail 12, the second rail 12 sli...

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Abstract

The invention belongs to the technical field of unmanned aerial vehicles, and particularly discloses a gravity center balancing method of an unmanned aerial vehicle and the unmanned aerial vehicle. The unmanned aerial vehicle comprises a rotor wing and a plurality of driving control units used for driving the rotor wing to rotate, and the balancing control method comprises the steps that input PWMsignals of the multiple driving control units are acquired; a current inclination state of the unmanned aerial vehicle is obtained by comparing the input PWM signals of the plurality of drive controlunits; and the gravity center of the unmanned aerial vehicle is adjusted according to the current inclination state until the input PWM signals of all the drive control units are the same. The unmanned aerial vehicle adopts the gravity center balancing method to perform gravity center balancing. According to the gravity center balancing method and the unmanned aerial vehicle, the flight stabilityof the unmanned aerial vehicle can be improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a method for balancing the center of gravity of an unmanned aerial vehicle and the unmanned aerial vehicle. Background technique [0002] UAV is a kind of unmanned aircraft controlled by radio remote control equipment or its own program. With the continuous development of information technology and UAV technology, UAV is widely used in land surveying, environmental monitoring, aerial photography And parcel express and other fields. [0003] Existing drones are divided into unmanned drones and manned drones. For unmanned drones, they need to carry the load required to complete the task. For example, for drones that require aerial photography, they need to carry Shooting equipment, for drones that need to deliver packages, they need to carry packages to be delivered. When the center of gravity of its load is not on the same vertical line as the center of gravity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C27/00B64C39/02B64C27/14B64D27/24
CPCB64C27/008B64C39/02B64C27/14B64D27/24B64U50/19B64U10/10B64U30/20
Inventor 郄新越
Owner BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD