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Small-size and high-speed positioning cradle head for aerial survey of unmanned aerial vehicle

A technology of drones and pan-tilts, applied in the field of drones, can solve problems such as image jitter, poor anti-vibration performance, cumulative positioning error of stepping motors, etc., to achieve reduced air resistance, good anti-vibration performance, and miniaturization Effect

Inactive Publication Date: 2010-09-15
北京航景创新科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Poor anti-vibration performance;
[0004] 2. Cumulative positioning error will be generated due to the lost step of the stepping motor;
[0005] 3. Relatively weak holding moment
[0006] In actual use, it is easy to cause image jitter, high system power consumption, large weight and size, and cannot meet the load requirements of aerial survey tasks for small UAVs.

Method used

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  • Small-size and high-speed positioning cradle head for aerial survey of unmanned aerial vehicle
  • Small-size and high-speed positioning cradle head for aerial survey of unmanned aerial vehicle
  • Small-size and high-speed positioning cradle head for aerial survey of unmanned aerial vehicle

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Embodiment Construction

[0045] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0046] Such as figure 1 As shown, a small high-speed positioning pan-tilt for aerial survey of UAV, including: pan-tilt frame structure, camera movement mechanism, pan-tilt lifting mechanism;

[0047] The frame structure of the platform includes: a housing 3, a fixed plate 17, and inside the housing 3, two side plates 9 vertically installed on the fixed plate 17;

[0048] Such as figure 2 and image 3 As shown, the camera movement mechanism is described as follows:

[0049] Inside the casing 3, two steering gears 16 are installed with their axes perpendicular to each other, and one of the steering gears 16 is parallel to the fixed plate 17, installed on the fixed plate 17, and drives the movement of the camera in the pitch direction; the other steering gear 16 The axis is perpendicular to the fixed plate 17, installed on the side plate 9, and dr...

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Abstract

The invention belongs to the technical field of unmanned aerial vehicles, in particular relates to a positioning cradle head for performing aerial photogrammetry of an unmanned aerial vehicle and positioning a ground target, and aims to enhance anti-vibration capability, improve control accuracy, enhance fixing torque, improve linearity and reduce weight and size at the same time. The positioning cradle head comprises a cradle head frame structure, a camera moving mechanism and a cradle head elevating mechanism, wherein the movement of a camera is driven by a model airplane steering engine and a circular-arc synchronous belt which is matched with the model airplane steering engine; and transmission of the elevating mechanism is realized by using a lead screw structure. The positioning cradle head has the advantages of high anti-vibration performance, high positioning accuracy, small size and light weight. When the unmanned aerial vehicle is taking off or landing, the cradle head can be accommodated in a ventral, so that air resistance can be reduced and the cradle head and the load of the cradle head can be protected under the situation that the terrain clearance of the ventral of the unmanned aerial vehicle cannot be accurately predicted in taking-off and landing processes.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, and in particular relates to a cloud platform for aerial photogrammetry of unmanned aerial vehicles to locate ground targets. Background technique [0002] Most of the pan / tilts on the market use stepping motors to control the pan / tilt. This driving method is suitable for pan / tilt products that do not require high positioning speed and accuracy for continuous rotation, and is generally used in static monitoring occasions. For the application of small UAVs, there are three main defects: [0003] 1. Poor anti-vibration performance; [0004] 2. Cumulative positioning error will be generated due to the lost step of the stepping motor; [0005] 3. Relatively weak holding moment. [0006] In actual use, it is easy to cause image jitter, high system power consumption, large weight and size, and cannot meet the load requirements of aerial survey tasks for small UAVs. Contents of the...

Claims

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Application Information

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IPC IPC(8): G01C11/02
Inventor 王伟贾宁
Owner 北京航景创新科技有限公司
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