Remote control system for active reflection panel of radio telescope

A technology of remote control system and radio telescope, applied in the direction of electrical program control, comprehensive factory control, comprehensive factory control, etc.

Inactive Publication Date: 2012-06-27
NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the bus fails, the terminals connected to it will be affected

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  • Remote control system for active reflection panel of radio telescope
  • Remote control system for active reflection panel of radio telescope
  • Remote control system for active reflection panel of radio telescope

Examples

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Embodiment 1

[0027] Example 1, such as figure 1 As shown, a radio telescope active reflector panel remote control system is composed of an active reflector panel, a number of displacement actuators, a number of displacement sensors, a number of terminal nodes, an Ethernet switch and a main control computer. The active reflection panel is composed of multiple fan-shaped sub-panels, and the displacement actuator is placed on the back of the sub-panel, and the displacement actuator is driven by a stepping motor. Two displacement sensors are placed on adjacent sides of the sub-panel.

[0028] The number of sub-panels is 210, and 4 displacement actuators are placed on the back of each sub-panel, so a total of 840 displacement actuators are used in this embodiment; each terminal node only controls one displacement actuator, and the terminal There are 840 nodes; the network connection equipment uses N sets of 48-port Ethernet switches, numbered from 1 to N. Among them, N-1 units from No. 2 to ...

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Abstract

The invention discloses a remote control system for an active reflection panel of a radio telescope. The remote control system comprises an active reflection panel, a plurality of displacement actuators, a plurality of displacement sensors, a plurality of terminal nodes, an Ethernet switch and a main control computer, wherein the active reflection panel comprises a plurality of fan-shaped subpanels, the displacement actuators are arranged on the back surfaces of the fan-shaped subpanel and driven by a stepping motor to operate, two displacement sensors are arranged on adjacent edges of the subpanels; each terminal node is connected with respective displacement actuator and displacement sensor; the main control computer calculates and decomposes the received control parameters into addresses of the terminal nodes and displacements of the actuators, and sends the addresses of the terminal nodes and the displacements of the actuators to the terminal nodes; the Ethernet equipment is connected with the terminal nodes and the main control computer, and used for transmitting data; each terminal node receives an instruction of the main control computer, drives the stepping motor to rotate, and further drives the displacement actuators to move; and the terminal nodes collect data of the displacement sensors as displacement information of the actuators and feed the displacement information back to the main control computer to form a control closed loop.

Description

technical field [0001] The invention relates to a remote control system for an active panel of a radio astronomical telescope, in particular to an embedded Ethernet communication and control system for a reflective panel of a large-diameter active optical submillimeter wave telescope. Background technique [0002] This invention is a part of the National Natural Science Foundation of China key project "Large Aperture Active Optical Submillimeter / millimeter Wave Telescope Scheme and Key Technology Research (10833004)". [0003] In the design and construction of large-aperture radio astronomy telescopes, spliced ​​mirror active optics technology has been applied more and more. A key point in realizing this technology is the design and manufacture of motion control systems for the active reflective panels. Judging from the existing application examples of mosaic mirror technology, the hardware structure of the system mainly includes the main control computer, communication n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418H01Q15/14
CPCY02P90/02
Inventor 张振超王地
Owner NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
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