Indoor detection method for angle tracking precision of swinging mirror

A technology of tracking accuracy and detection method, which is applied in the direction of measuring angle, measuring device, surveying and navigation, etc.

Active Publication Date: 2014-03-26
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

However, due to the angular velocity limit of the dynamic image quality testing system, it does not have the ability to simulate high-speed targets, and cannot meet the detection of high-speed target angular tracking accuracy

Method used

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  • Indoor detection method for angle tracking precision of swinging mirror
  • Indoor detection method for angle tracking precision of swinging mirror
  • Indoor detection method for angle tracking precision of swinging mirror

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Embodiment Construction

[0040] See figure 1 The detection tools required by the present invention include: collimator, total station and digital circuit. The digital circuit provides accurate trigger signals and synchronization pulses for the high-speed camera and the system under test. The trigger signal mainly triggers the rotation of the swing mirror and the high-speed camera to start recording images. The synchronization pulse is used to provide the frequency of the high-speed camera to record the image, the trigger signal and the synchronization pulse The rising edge is aligned to ensure that the swing mirror starts to rotate and the camera starts to record at the same time, so as not to introduce additional angle errors;

[0041] The invention uses the point light source generated by the collimator to simulate the target, and places a plurality of collimators on the target motion curve within the tracking range of the pendulum mirror. The center of the pendulum mirror is set to O, and the rotation ...

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Abstract

The invention provides an indoor detection method for angle tracking precision of a swinging mirror. The indoor detection method comprises the following steps: (1) placing a plurality of parallel light tubes in a swinging mirror tracking range and pointing to the center of the swinging mirror to respectively set to a target 1, a target 2...a target n, setting the center of the swinging mirror to O; representing crossed points of connection lines of the targets and the O point, and a movement curve by A, B, C, D and the like, pointing a swinging mirror rotation starting point to the A point of the end point on a target movement curve, wherein the distance from the O point to the movement curve thetaOT is L and the L is the vertical distance from the O point to the plane where the movement curve is located; and (2) calibrating included angles including thetaAT, thetaBT, thetaCT and the like by using a total station, after calibrating, replacing the total station by a swinging mirror tracking system, wherein the thetaAT, the thetaBT and the thetaCT are the included angle of the A point and the OT, the included angle of the target 1 and the OT and the included angle of the target 2 and the OT. According to the indoor detection method for the angle tracking precision of the swinging mirror, the detection on the angle tracking precision of a high-speed movement target by the tracking system is realized by a static simulation target.

Description

technical field [0001] The invention relates to an angle tracking accuracy detection technology, in particular to an indoor detection method for an angle tracking accuracy when a pendulum mirror tracking system tracks a high-speed moving target. Background technique [0002] The high-speed oscillating mirror target tracking system is a system that uses mirror swing to reflect a moving target into a high-speed camera to achieve target recording. Due to the high angular velocity and angular acceleration of the pendulum mirror, the system can realize the tracking and attitude recording of high-speed targets. The angular tracking accuracy of high-speed moving targets is an important parameter index of the system. [0003] In order to measure the angular tracking accuracy of the pendulum mirror tracking system, it is necessary to simulate a high-speed moving target, which is difficult to achieve in the laboratory. At present, the target is mainly simulated through the dynamic i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C25/00
CPCG01C1/00G01C25/00
Inventor 郭治理韩俊锋张欣马烽罗俊萍张三喜李大伟周泗忠
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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