Gimbal control method, gimbal control apparatus, and gimbal

Patent metadata

Field	Value
Publication number	US-10890830-B2
Application number	US-201916513157-A
Country	US
Kind code	B2
Filing date	Jul 16, 2019
Priority date	May 31, 2016
Publication date	Jan 12, 2021
Grant date	Jan 12, 2021

Abstract

An apparatus for controlling a gimbal includes one or more processors individually or collectively configured to determine an operation mode of the gimbal according to a mode selection activation condition. The operation mode includes a walk operation mode or a sensitive operation mode. the one or more processors are further configured to, in response to determining that the operation mode is the walk operation mode, control the gimbal to adjust attitude at a lower responding speed than in the sensitive operation mode.

First claim

What is claimed is:

1. An apparatus for controlling a gimbal comprising:
one or more processors individually or collectively configured to:
determine an operation mode of the gimbal according to a mode selection activation condition, the operation mode including a walk operation mode or a sensitive operation mode; and
in response to determining that the operation mode is the walk operation mode, control the gimbal to adjust attitude according to a preset association relation between an attitude change angle of the gimbal and a following angular velocity of the gimbal, the preset association relation including a function, and a positive slope of the function increasing with an increase of the attitude change angle of the gimbal.

2. The apparatus according to claim 1 , wherein the one or more processors are further configured to, in response to the operation mode being the walk operation mode:
obtain the attitude change angle of an adjustment mechanism of the gimbal in a direction; and
in response to the attitude change angle being smaller than a preset angle, adjust the following angular velocity of the adjustment mechanism in the direction according to the preset association relation.

3. The apparatus according to claim 2 , wherein:
the preset association relation includes that the following angular velocity is a fourth order concave function of the attitude change angle; and
at least one of coefficients of the fourth order concave function is larger than zero.

4. The apparatus according to claim 2 , wherein:
the preset angle is a first preset angle, and
the one or more processors are further configured to:
in response to the attitude change angle in the direction being larger than or equal to a second preset angle, control the following angular velocity of the adjusting mechanism in the direction to be equal to a preset maximum following angular velocity, the second preset angle being larger than or equal to the first preset angle.

5. The apparatus according to claim 2 , wherein:
the preset angle is a first preset angle, and
the one or more processors are further configured to:
in response to the attitude change angle becoming larger than a second preset angle, switch the operation mode from the walk operation mode to the sensitive operation mode, the second preset angle being larger than or equal to the first preset angle.

6. The apparatus according to claim 2 , wherein the preset angle is about 10°.

7. The apparatus according to claim 2 , wherein the direction is a yaw direction, a pitch direction, or a roll direction.

8. The apparatus according to claim 2 , wherein the one or more processors are further configured to obtain the attitude change angle through an inertial measurement unit communicatively coupled to the one or more processors.

9. The apparatus according to claim 1 , wherein the one or more processors are further configured to, in response to the operation mode being the walk operation mode:
obtain the attitude change angle of an adjustment mechanism of the gimbal in a direction;
obtain an attitude change frequency of the adjustment mechanism in the direction; and
in response to the attitude change frequency being equal to a preset frequency and the attitude change angle being smaller than a preset angle, adjust the following angular velocity of the adjustment mechanism in the direction according to the preset association relation.

10. The apparatus of claim 9 , wherein the preset frequency is about 1 Hz or about 2 Hz.

11. An apparatus for controlling a gimbal comprising:
one or more processors individually or collectively configured to:
determine an operation mode of the gimbal according to a mode selection activation condition, the operation mode including a walk operation mode or a sensitive operation mode; and
in response to determining that the operation mode is the sensitive operation mode:
obtain an attitude change parameter of the gimbal; and
adjust a following angular velocity of the gimbal according to a preset association relation between the attitude change parameter and the following angular velocity, the preset association relation including an approximately linear function.

12. The apparatus according to claim 11 , wherein the attitude change parameter includes an attitude change angle of an adjustment mechanism of the gimbal in a direction.

13. The apparatus according to claim 12 , wherein the one or more processors are further configured to adjust the following angular velocity in the direction according to the preset association relation.

14. The apparatus according to claim 11 , wherein the function is a positive linear function.

15. The apparatus according to claim 12 , wherein the one or more processors are further configured to:
in response to the attitude change angle of the adjustment mechanism in the direction being smaller than a preset angle, switch the operation mode from the sensitive operation mode to the walk operation mode.

16. An apparatus for controlling a gimbal comprising:
one or more processors individually or collectively configured to:
determine an operation mode of the gimbal according to a mode selection activation condition, the operation mode including a walk operation mode, a sensitive operation mode, or an automatic matching mode; and
in response to determining that the operation mode is the automatic matching mode:
obtain an attitude change parameter of the gimbal; and
select the walk operation mode or the sensitive operation mode according to the attitude change parameter, including:
in response to the operation mode being the sensitive operation mode, adjusting a following angular velocity of the gimbal according to a preset association relation between the attitude change parameter and the following angular velocity, the preset association relation including an approximately linear function.

17. The apparatus according to claim 16 , wherein:
the attitude change parameter of the gimbal includes an attitude change angle of an adjustment mechanism of the gimbal in a direction; and
the one or more processors are further configured to, in response to the attitude change angle in the direction being smaller than a preset angle, activate the walk operation mode.

18. The apparatus according to claim 17 , wherein:
the preset angle is a first preset angle; and
the one or more processors are further configured to:
in response to the attitude change angle in the direction being larger than or equal to a second preset angle, activate the sensitive operation mode.

19. The apparatus according to claim 16 , wherein:
the attitude change parameter of the gimbal includes an attitude change angle of an adjustment mechanism of the gimbal in a direction and an attitude change frequency of the adjustment mechanism in the direction; and
the one or more processors are further configured to:
in response to the attitude change frequency being equal to a preset frequency and the attitude change angle being smaller than a preset angle, activate the walk operation mode.

Assignees

• Sz Dji Osmo Technology Co Ltd

Inventors

• Wang Yan
• Yang Bingzhen

Classifications

• H04N23/66 Primary

  Remote control of cameras or camera parts, e.g. by remote control devices · CPC title

• H04N23/667

  Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes · CPC title

• H04N23/68

  for stable pick-up of the scene, e.g. compensating for camera body vibrations · CPC title

• F16M11/123

  the axis of rotation intersecting in a single point, e.g. by using gimbals · CPC title

• F16M11/2071

  for panning and rolling (F16M11/2078 takes precedence) · CPC title