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Inertial pointing control method and control system of arm type space astronomical telescope

A technology for astronomical telescope and pointing control, which is applied in digital control, electrical program control, etc., and can solve the problem of low precision of inertial pointing control

Inactive Publication Date: 2017-02-08
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0008] In order to solve the problem of low inertial pointing control accuracy existing in the inertial pointing control method of the arm-type space astronomical telescope, the present invention provides an inertial pointing control method and control system for the arm-type space astronomical telescope

Method used

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  • Inertial pointing control method and control system of arm type space astronomical telescope
  • Inertial pointing control method and control system of arm type space astronomical telescope
  • Inertial pointing control method and control system of arm type space astronomical telescope

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Embodiment Construction

[0068] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0069] The arm type space astronomical telescope includes a space astronomical telescope 2 and an arm type mechanism, wherein the arm type mechanism is composed of a plurality of rotating joints 4 in series, one end of the arm type mechanism is installed on the space vehicle 1, and the other end is installed on the space astronomical telescope 2. like figure 1 As shown, the inertial pointing control system of the arm type space astronomical telescope of the present invention is installed on the arm type space astronomical telescope and the space vehicle 1, and the inertial pointing of the arm type space astronomical telescope is automatically controlled, including a controller 3, a plurality of Joint motors 5 , multiple joint position sensors 6 , multiple motor drive circuits 7 , multiple motor current sensors 8 , multiple joint inertial speed sensors 9 and a...

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Abstract

The inertial pointing control method and control system of the arm-type space astronomical telescope relate to the field of industrial automation, and solve the problem of low inertial pointing control precision existing in the inertial pointing control method of the arm-type space astronomical telescope. The control system includes a controller; a telescope inertial position sensor electrically connected to the controller; a joint position sensor electrically connected to the controller and equal to the number of rotating joints, a motor drive circuit, a motor current sensor and a joint inertial speed sensor; each A joint motor is fixed on each rotary joint, and the joint motor on the same rotary joint is mechanically connected to the joint position sensor, and each joint motor is electrically connected to a motor drive circuit and a motor current sensor respectively. According to the dynamic model of the arm-type space astronomical telescope, the control algorithm is designed and the compensation of the nonlinear term is completed. The closed-loop feedback of each joint is realized through the joint inertial velocity sensor, and the inertial pointing control accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of industrial automation, in particular to an inertial pointing control method and a control system of an arm-type space astronomical telescope. Background technique [0002] Space astronomical telescopes are carried on space vehicles such as satellites or spacecraft to complete the task of photographing cosmic celestial bodies. They are extremely important detection instruments required by astronomy. In order to achieve high-definition celestial imaging, space astronomical telescopes are generally required to have high-precision inertial pointing capabilities. The arm-type space astronomical telescope generally includes a space astronomical telescope 2 and an arm-type mechanism, wherein the arm-type mechanism is composed of a plurality of rotating joints 4 connected in series. One end of the arm-type mechanism is installed on the spacecraft 1, and the other end is installed on the space astronomical telesco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/19
CPCG05B19/19
Inventor 曹小涛王栋刘南南杨维帆
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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