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Three-freedom-degree light-load aerial photograph stabilized platform

A stable platform and degree of freedom technology, applied in the field of aerial remote sensing, can solve the problems of limited anti-shock and vibration ability of the stable platform, and heavy burden on the frame motor of the stable platform, so as to increase the anti-shock ability, reduce the burden, and improve the stability accuracy Effect

Inactive Publication Date: 2018-01-19
CHANGGUANG SATELLITE TECH CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a three-degree-of-freedom stable platform for light-load aerial photography, which can effectively isolate the attitude of the aircraft. changes, and keep the attitude of the optical load stable to the ground, which is conducive to improving the quality and efficiency of aerial imaging

Method used

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  • Three-freedom-degree light-load aerial photograph stabilized platform
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  • Three-freedom-degree light-load aerial photograph stabilized platform

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Embodiment Construction

[0016] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0017] In one of the examples, as figure 1 , figure 2 and image 3 As shown, a stable platform for three-degree-of-freedom light-load aerial photography includes an outer frame 1, a roll frame 2, a pitch frame 3, a yaw frame 4, a first drive motor 5, a second drive motor, and a third drive motor 6. Encoder 7, three-axis inertial measurement unit (Inertial measurement unit, IMU) 8, mechanical locking mechanism 9, 10, 11 and controller.

[0018] Specifically, the outer frame 1 is fixedly connected to the aircraft through the shock absorber 12 and the installation interface plate 13. The shock absorber 12 is used to isolate the high-frequency line vibration in the aircraft cabin, and the number of the shock absorbers 12 can be determined according to the actual needs of the stable platform. Set, for example, outer...

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Abstract

The invention relates to a three-freedom-degree light-load aerial photograph stabilized platform, and belongs to the technical field of aerial remote sensing. The stabilized platform includes an outerframe (1), a rolling frame (2), a pitching frame (3), a yaw frame (4), a first drive motor (5), a second drive motor, a third drive motor (6), an encoder (7), a three-shaft inertial measurement unit(8), a mechanical locking mechanism (9, 10, 11), and a controller. A center of mass is designed, rotation shafts of the rolling frame and the pitching frame are aligned with the center of mass of a load, additional interference force generated by circular motion of an optical load is applied to a bearing completely, the additional moment is reduced to the greatest extent, the load of the motors and the size and the mass of the corresponding component can be reduced greatly, the anti-impact ability of the stabilized platform is improved, and the stabilizing precision of the stabilized platformis improved.

Description

technical field [0001] The invention relates to the technical field of aerial remote sensing, in particular to a stable platform for three-degree-of-freedom light-loaded aerial photography. Background technique [0002] The stabilization platform for aerial photography is used to stabilize the attitude of the aerial photography camera and isolate the angular motion of the aircraft, thereby improving the quality of aerial photography and stabilizing the change of the overlapping rate of aerial photography. Due to the limitations of the airborne environment, the stabilized platform should have the characteristics of light weight and small volume, large load-carrying ratio, and the ability to isolate high-frequency vibrations. [0003] However, the existing stable platforms usually install gyroscopes or accelerometers on the frame, resulting in a mechanical transmission between the outer frame measurement sensor and the measured target, which is prone to errors, and at the same...

Claims

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Application Information

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IPC IPC(8): B64D47/08G01C11/02G01C21/16
Inventor 王涛李瑞峰赵春娟刘静军
Owner CHANGGUANG SATELLITE TECH CO LTD
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