Method for detecting position and attitude of micro cylindrical cavity target by using target collimating sensor

Abstract

The invention relates to a method for detecting the position and attitude of a micro cylindrical cavity target by using a target collimating sensor. When the method is used for detection, a target collimating sensor consisting of three CCD (Charge Coupled Device) image sensors which are in orthogonal arrangement is adopted; the intersection point of optical axes of the three CCD image sensors is taken as a reference point for placing a target, and the images of a micro cylindrical cavity target are acquired by the target collimating sensor from different viewing angels; and characteristic values of the images of the images of the micro cylindrical cavity target, which are extracted by the three CCD image sensors are combined, and the space coordinate and azimuth rotation matrix of the micro cylindrical cavity target are calculated according to the characteristic values so as to determine the six-dimensional position and attitude of the micro cylindrical cavity target in space. The new method for detecting the position and attitude of the micro cylindrical cavity target, provided by the invention, has the advantages of improving repeatability accuracy in position detection for the micro cylindrical cavity target and especially reducing errors in attitude direction for the micro cylindrical cavity target, is convenient to operate and has good in stability and has a high detection speed.

Description

technical field [0001] The invention relates to a method for detecting the position and posture of a tiny target. In particular, it relates to a method for detecting the pose of a micro-column cavity target with a target alignment sensor. technical background [0002] With the further aggravation of the energy crisis, people have been devoting themselves to finding new types of renewable energy. Inertial Confinement Fusion (ICF) is a technology that can completely solve human energy problems, and it is a hot technology that developed countries are competing to study in recent years. In the inertial confinement fusion experiment, it is necessary to detect the position and attitude of the millimeter-scale tiny target filled with fusion fuel through the target alignment sensor, and then accurately locate it in the center of the vacuum target chamber with a diameter of several meters by the positioning mechanism. The overall accuracy of the system requires At the micron level,...

AI Technical Summary

Problems solved by technology

When shooting a target, since the laser beam has to be focused on the center of the upper and lower surfaces of the target, generally speaking, the detection accuracy of the above two detection methods for the target position is relatively low, especially the detection of the target attitude is relatively rough, which cannot meet the requirements of realizing multi-beam fast parallel guidance to target requirements

Images