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Minitype airborne high-precision low cost single-degree-of-freedom photo-electricity stabiliser

A high-precision, degree-of-freedom technology, applied in navigation through speed/acceleration measurement, electrical program control, comprehensive factory control, etc., to reduce weight, facilitate software compensation, and improve stability and accuracy

Inactive Publication Date: 2008-07-23
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, there is no relatively complete photoelectric stabilizer in terms of performance, price, volume and weight at home and abroad.

Method used

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  • Minitype airborne high-precision low cost single-degree-of-freedom photo-electricity stabiliser
  • Minitype airborne high-precision low cost single-degree-of-freedom photo-electricity stabiliser
  • Minitype airborne high-precision low cost single-degree-of-freedom photo-electricity stabiliser

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Experimental program
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Embodiment Construction

[0011] The present invention includes a carrier inertial measurement device 1, a control computer 2, a DC deceleration servo motor 3, a CCD camera 4, a wireless image and data transmission system 5, and a ground control station 6. The control computer 2 is based on the speed information provided by the carrier inertial measurement device 1, Combining with the semi-strapdown stabilization algorithm 11, the command rate of the optical axis of the camera 4 is calculated. The camera 4 is equipped with a shaft sleeve 7 fixed to the motor shaft, and is fixed with the motor shaft by a top screw 8. The DC deceleration servo motor 3 receives The received speed command directly drives the CCD camera 4 to move according to the command, so as to realize the stability of the optical axis in the inertial space; a spring is installed between the lens of the CCD camera 4 and the fixed plate 10, and the system adopts the spring preload control 9 to eliminate the speed reducer The gear is empty ...

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Abstract

The invention relates to a small airborne high precision low cost single freedom photoelectric stabilizer which is composed of a control computer, a carrier inertia measurer, a CCD camera, a small direct current deceleration servo motor, a wireless image and data transmission system and a ground control station. The control computer according to the speed and position information provided by the carrier inertia measurer and navigation system can calculate the speed command of the camera optical axis and controls the direct-current deceleration servo motor to operate relatively, to half-strapdown stabilization of the optical axis, the camera uses spring preload to control, which can eliminate the gear backlash of decelerator, the wireless image transmission system can transmit the detected image to the ground control station, and ground control user can use the wireless image and data transmission system and the control computer to control the CCD camera accoriding to the image information. The invention has simple structure, small volume, low weight, low cost and high precision, which is suitable for the research of small unmanned aerial vehicle photoelectric system.

Description

technical field [0001] The invention relates to a small, high-precision, low-cost single-degree-of-freedom photoelectric stabilizer, which is suitable for the engineering realization of detecting and tracking ground moving targets by using micro-miniature unmanned aerial vehicles. Background technique [0002] Airborne photoelectric stabilizers are widely used in the fields of military, public security, fire protection, and environmental monitoring. However, the existing photoelectric stabilizers are all in the form of gyro-stabilized platforms. It is a mature application, but its volume and weight are relatively large, so it is not suitable for occasions with strict requirements on volume and weight. When using a micro-UAV to detect and track movable targets on the ground, due to the limitation of the size and payload of the UAV itself, the weight of the photoelectric stabilizer is required to be no more than 300g, and at the same time, it must meet the requirements of low ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418G05D3/20G01C21/16
Inventor 徐烨烽韩永根仇海涛李志宇
Owner BEIHANG UNIV
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