Arm type space astronomical telescope inertial pointing control method and control system

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: 2015-04-01
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 as

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  • Arm type space astronomical telescope inertial pointing control method and control system
  • Arm type space astronomical telescope inertial pointing control method and control system
  • Arm type space astronomical telescope inertial pointing control method and control system

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Embodiment Construction

[0067] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0068] 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. Such as 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 an...

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Abstract

The invention relates to an arm type space astronomical telescope inertial pointing control method and control system and belongs to the industrial automation field. With the arm type space astronomical telescope inertial pointing control method and control system of the invention adopted, the problem of low inertial pointing control precision of an existing arm type space astronomical telescope inertial pointing control method can be solved. The control system comprises a controller, a telescope inertial position sensor electrically connected with the controller, joint position sensors of which the number is equal to the number of rotating joints, motor driving circuits, motor current sensors and joint inertial speed sensors, wherein the joint position sensors are electrically connected with the controller; a joint motor is fixed on each rotating joint; the joint motor and the joint position sensor on the same rotating joint are in mechanical connection with each other; and each joint motor is electrically connected with one motor driving circuit and one motor current sensor. Design of a control algorithm and completion of compensation for nonlinear terms can be realized according to a dynamics model of an arm type space astronomical telescope, and closed-loop feedback of each joint can be realized through the joint inertial speed sensors, and therefore, inertial pointing control precision can be 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...

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Application Information

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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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