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A two-axis four-frame photoelectric turntable control system

A technology of photoelectric turntable and control system, which is applied in the direction of control using feedback to achieve the effect of improving stable control accuracy, less parameter variables, and easy adjustment.

Active Publication Date: 2020-12-11
北京中星时代科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the multi-frame structure causes coupling between the frames. It is necessary to design a suitable two-axis and four-frame control algorithm to solve the linkage problem between the inner and outer frames, so as to better isolate the interference movement.

Method used

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  • A two-axis four-frame photoelectric turntable control system
  • A two-axis four-frame photoelectric turntable control system
  • A two-axis four-frame photoelectric turntable control system

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Embodiment Construction

[0044] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0045] figure 1It shows a two-axis four-frame photoelectric turntable control system, which includes a vertically arranged azimuth axis 11 and pitch axis 12, four frames, a driver 4, an angular position sensor, a fiber optic gyroscope, a camera, an image processing module 8, and a power supply module , laser distance measuring machine 73 and servo controller 9.

[0046] Wherein the four frames include the outer azimuth frame 21, the outer pitch frame 22, the inner azimuth frame 23 and the inner pitch frame 24 connected by the azimuth axis 11 and the pitch axis 12 from the outside to the inside;

[0047] The two-axis four-frame photoelectric turntable control system also includes an outer az...

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Abstract

The invention discloses a two-axis four-frame photoelectric turntable control system. The invention belongs to the technical field of pod control. The system comprises an azimuth axis, a pitch axis, afour-frame, a driver, an angular position sensor, a fiber-optic gyroscope, a camera device, an image processing module, a power supply module and a servo controller, the servo controller further collects and processes angular position information of an outer orientation frame, an outer pitching frame, an inner orientation frame and an inner pitching frame and inertial space angular speed information of the fiber-optic gyroscope, and then controls an outer orientation motor, an outer pitching motor, an inner orientation motor and an inner pitching motor to work according to different working modes of a photoelectric rotary table. Aiming at the influence of shafting friction and other interferences on the control precision, the friction model and an extended state observer are respectivelyadded, so that the platform stabilization precision of the system is greatly improved, and the space stability of the visual axis is ensured.

Description

technical field [0001] The invention relates to a servo controller technology, which belongs to the technical field of control systems, and specifically relates to a two-axis four-frame photoelectric turntable control system. Background technique [0002] As a structural form of the pod, the two-axis four-frame photoelectric turntable can make the photoelectric turntable have a larger tracking range, better platform stability and tracking accuracy. The "two-axis" in the two-axis four-frame refers to the azimuth axis and the pitch axis, and the "four frames" refers to the four frames of outer azimuth, outer pitch, inner azimuth, and inner pitch. The outer frame surrounds the inner frame, and the photoelectric load is installed on the inner pitch frame. , the four frames are connected by bearings from outside to inside. [0003] Two-axis four-frame has many advantages compared with two-axis two-frame. The outer frame of the two-axis four-frame pod wraps the inner frame inside...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/12
CPCG05D3/12
Inventor 张海波代剑峰李新磊
Owner 北京中星时代科技有限公司
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