Method for improving stability precision of photoelectric turntable based on system identification

A photoelectric turntable and stable precision technology, which is applied to controllers with specific characteristics, electric controllers, etc., can solve the problems that the controller parameters are not fine enough, and the accuracy of the visual axis stability can not reach the optimal effect, so as to promote the development progress , save repeated verification, clear workflow effect

Pending Publication Date: 2021-06-01
WUHAN GUIDE INFRARED CO LTD +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for improving the stability accuracy of the photoelectric turntable based on system identification, so as to solve the problem that the controller parameters of the photoelectric turntable in the prior art are not fine enough, and the final visual axis stability accuracy cannot reach the optimal effect.

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  • Method for improving stability precision of photoelectric turntable based on system identification
  • Method for improving stability precision of photoelectric turntable based on system identification
  • Method for improving stability precision of photoelectric turntable based on system identification

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Embodiment Construction

[0043] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0044] The basic framework of the photoelectric turntable is as follows: figure 1 As shown in the figure, it is a typical two-axis two-frame structure. The outer U-shaped frame can rotate around the azimuth of the base, and the inner frame has visible loads or laser loads, etc., and it can rotate around the outer frame. The servo of the azimuth and pitch axes The motors move separately, and the visual axis can point to the specifie...

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Abstract

The invention provides a method for improving the stability precision of a photoelectric turntable based on system identification, and the method comprises the steps: calculating a control parameter of a current loop controller, and debugging the current loop controller: carrying out the current loop closed-loop frequency sweeping of the photoelectric turntable, and analyzing the frequency sweeping data to identify a servo motor model; optimizing the servo motor model; calculating control parameters of a speed loop controller, and debugging the speed loop controller; performing speed loop closed-loop frequency sweeping on the photoelectric turntable, and analyzing frequency sweeping data to identify the rotational inertia of the photoelectric turntable; and optimizing the parameters of the speed ring controller according to the identified rotational inertia, and performing compensation design on the state observer until the stable precision index requirement is met. The method can solve the problems that the parameters of the controller of the photoelectric turntable in the prior art are not fine enough, and the final optical axis stability precision cannot achieve the optimal effect.

Description

technical field [0001] The invention relates to the field of photoelectric technology, in particular to a method for improving the stability accuracy of a photoelectric turntable based on system identification. Background technique [0002] The photoelectric turntable is a kind of monitoring equipment, which mainly monitors the target through the monitoring components installed in the housing. The current control and debugging of the photoelectric turntable is mainly based on the ideal mathematical model to adjust the parameters of the controller, and then design and apply it. Specifically, based on the ideal mathematical model of the servo motor, the off-line simulation design of the outer loop controller is carried out, and then applied to the actual product. However, due to internal friction, resonance of the transmission structure, etc., there will be obvious differences between the actual product and the servo transmission mechanism represented by the ideal mathematica...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 黄立徐冰溶徐亚文董烈超
Owner WUHAN GUIDE INFRARED CO LTD
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