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A source replacement planning method for a radio telescope feed source support system

A technology for radio telescopes and support systems, which is applied in the control of using feedback, antenna supports/installation devices, etc., can solve the problem that the cable driving cable force exceeds the limit, the influence of tensile force is not considered, and the control mechanism of the feed support system cannot bear the load. And alarm and other issues, to achieve the effect of stable system movement, reducing angular velocity and reducing tension

Active Publication Date: 2022-03-22
NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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Problems solved by technology

The source change planning method adopted in the prior art scheme is to change the source in a straight line for the whole section, which may easily cause the cable force of the cable drive to exceed the limit, and may easily cause the control mechanism of the feed source support system to be unable to carry and cause an alarm; in addition, the existing The technology also does not consider the influence of the attitude angle of the cable drive on the pull force of the cable drive, which may easily lead to unstable operation of the feed support system mechanism

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  • A source replacement planning method for a radio telescope feed source support system
  • A source replacement planning method for a radio telescope feed source support system
  • A source replacement planning method for a radio telescope feed source support system

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Embodiment Construction

[0034] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention relates to a source change planning method for a radio telescope feed source support system, which is characterized in that it includes: determining the start position of the source change and the end position of the source change; Inflection point position for source change; from the starting point of source change to the inflection point of source change, the source is replaced by a straight line segment; from the inflection point of source change to the end position of source change, the source is changed by a focal plane segment. Using the method of combining the source change of the straight line segment and the source change of the focal plane segment, the pulling force of the cable drive is reduced to ensure the controllability of the cable force. In the source change of the straight line segment, the attitude angle of the cable drive is moved to the pitch angle corresponding to the position of the focal plane. , the velocity and acceleration changes in the focal plane segment become smaller, ensuring the stability of the feed support system mechanism, and the movement angle of the AB-axis rotation mechanism and the multi-beam rotation mechanism is planned according to the entire source change time, which can reduce the angular velocity of the source change , making the system motion stable.

Description

technical field [0001] The invention relates to the field of motion control of a radio telescope, in particular to a source change planning method of a radio telescope feed support system. Background technique [0002] The Five-hundred-meter Aperture Spherical radio Telescope (FAST) project, known as "China's Sky Eye", is a national "Eleventh Five-Year" major scientific and technological infrastructure construction project, and its main components include reflectors and feed receivers The basic idea of ​​the device is to reflect and converge the radio wave through the reflective surface, and then the feed source receiving device completes the reception of the radio wave. The feed receiving device moves through the feed support system, and the feed support system adopts three active control mechanisms: cable-driven parallel mechanism, AB axis rotation mechanism and Stewart parallel mechanism. The cable-driven parallel mechanism can control the feed receiver to the correct po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/12H01Q1/12
Inventor 姚蕊姜鹏孙京海李铭哲孙纯黄琳郑云勇吴若飞
Owner NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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