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Device for measuring high-flap-rate insect motion parameter

A technology of motion parameters and measuring devices, which is applied in the field of insect motion bionics, can solve problems such as light plane recognition projection blind areas, single camera shooting blind areas, and reduced measurement accuracy, so as to reduce the difficulty of experiments, solve observation blind areas and occlusion problems, and reduce system costs. cost effect

Inactive Publication Date: 2006-05-03
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

[0010] First, the three-dimensional reconstruction methods used in insect measurement are all geometric analysis methods based on various assumptions, and these assumptions have certain limitations, which will inevitably reduce the measurement accuracy. high
However, there are problems with the identification of light planes and projection blind spots. At the same time, there are shooting blind spots when shooting wing movements with a single camera. Generally, only the measurement results of one side of the wing can be obtained.
[0011] Second, although the multi-camera structure can solve the problem of observation blind spots, the system cost is relatively high, and there is also the problem of synchronous driving between multiple cameras

Method used

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  • Device for measuring high-flap-rate insect motion parameter
  • Device for measuring high-flap-rate insect motion parameter
  • Device for measuring high-flap-rate insect motion parameter

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Embodiment Construction

[0029] The present invention will be described in further detail below. First, the measurement principle of the present invention will be briefly described. Stereo vision is to observe the same object from two different positions and use optical triangulation to measure the spatial distance of the measured object. Such as image 3 As shown, for any point P on the surface of the space object, its image plane I corresponding to the camera C1 1 P 1 Indicates that point P is located at the optical center of the camera and P 1 cannot pass through the point P on the connection 1 Restore the three-dimensional position of point P, and point P is also located in the image plane I corresponding to camera C2 2 upper image point P 2 and its optical center, so the three-dimensional position of the spatial point P can be uniquely determined through two cameras.

[0030] The schematic diagram of the single-camera virtual four-eye vision measurement model adopted in the present inventi...

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Abstract

The invention belongs to the insect motion bionic technique, relating to the improvement on the detecting device of insect motion parameters. The invention comprises: a platform (5), a high-speed camera (2), a background lamp (4), and a computer (7), and it is characterized in that: a combination four-sides mirror (1) is arranged under the high-speed camera (2), while each side of it has one plane external mirror (3), and each optical path has one background lamp (4). The invention can uses one high-speed camera to realize the detecting function of four sensors to reduce the system cost significantly, and effectively solve the problem of detecting blind area and shading when detecting the motion of high swinging-frequency insect.

Description

technical field [0001] The invention belongs to the technical field of insect motion bionics, and relates to an improvement of an insect motion parameter measuring device. Background technique [0002] MAV (Micro-Air Vehicle) has a good application prospect because of its convenient portability, simple operation, good concealment, and flexible maneuverability. It has become a hot research topic in the aviation field in recent years. Since the mechanism of insect flight motion can provide a good theoretical basis for the development of MAV, the measurement of insect motion parameters has become a hot topic in the bionic research of insect motion. The measurement of insect motion parameters mainly includes wing angle, torsion angle, swing angle, wing frequency, wing surface deformation and body posture. At present, great progress has been made in the measurement of motion parameters of insects with low wing-wing frequency (dragonflies, etc.), because insects with high wing-wi...

Claims

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Application Information

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IPC IPC(8): B64C33/02G04F13/02
Inventor 张广军王颖陈大志
Owner BEIHANG UNIV
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