A servo/manual hybrid three-degree-of-freedom remote sensing pan-tilt system for light and small UAVs

Abstract

The present invention discloses a servo / manual control mixing-type three-degree-of-freedom light-small unmanned aerial vehicle remote sensing holder system. The system comprises two work modes of servo stabilization and manual control. The system comprises a structure system, a power system and a control system. The pedestal of the structure system is connected with an airplane through a vibration damper to isolated from the vibration of an aircraft wire; an orientation framework is supported by the pedestal to realize revolution in the range of +_130 degrees; a roll framework is supported by the orientation framework to realize revolution in the range of +_30 degrees; and a pitching framework is supported by the roll framework to realize revolution in the range of -90 to 30 degrees. The control system generates an instruction according to framework angular position and angular rate information provided by an attitude reference system, and the power system is configured to perform compensation of attitude errors and rate disturbance to realize stabilization of an imaging load visual axis and real-time tracking of an object; when a tracking angle is large, the manual remote operation is employed to realize large-angle rapid tracking; and the system is small in size, light in weight, fast in response and wide in tracking range, and can be suitable for systems with light and small unmanned aerial vehicle remote control, target tracking and monitoring, etc.

Description

technical field [0001] The invention belongs to the technical field of aviation aircraft design, and relates to a servo / manual hybrid three-degree-of-freedom light and small unmanned aerial vehicle remote sensing platform system, which is suitable for remote sensing systems such as light and small aerial photography, target tracking and monitoring. Background technique [0002] Whether in the military field or the civilian field, light and small UAVs have broad application and development prospects. Among them, the widely used light and small UAV remote sensing system needs to carry imaging load, and if the imaging load is directly installed on the flight carrier, it will be affected by airflow disturbance, body vibration and other unknown disturbance factors, resulting in degradation of imaging quality. The solution is to install the imaging load on the flight carrier through the gimbal, isolate various disturbances through the gimbal, and keep the visual axis stable. In a...

AI Technical Summary

Problems solved by technology

[0005] In summary, with the development of light and small UAV technology and the popularization of applications, there is a huge demand for high-precision image stabilization actuators for light and small UAVs, but related research is still relatively lacking.

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