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Proceedings Paper

Remote monitoring and fault recovery for FPGA-based field controllers of telescope and instruments
Author(s): Yuhua Zhu; Dan Zhu; Jianing Wang
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Paper Abstract

As the increasing size and more and more functions, modern telescopes have widely used the control architecture, i.e. central control unit plus field controller. FPGA-based field controller has the advantages of field programmable, which provide a great convenience for modifying software and hardware of control system. It also gives a good platform for implementation of the new control scheme. Because of multi-controlled nodes and poor working environment in scattered locations, reliability and stability of the field controller should be fully concerned. This paper mainly describes how we use the FPGA-based field controller and Ethernet remote to construct monitoring system with multi-nodes. When failure appearing, the new FPGA chip does self-recovery first in accordance with prerecovery strategies. In case of accident, remote reconstruction for the field controller can be done through network intervention if the chip is not being restored. This paper also introduces the network remote reconstruction solutions of controller, the system structure and transport protocol as well as the implementation methods. The idea of hardware and software design is given based on the FPGA. After actual operation on the large telescopes, desired results have been achieved. The improvement increases system reliability and reduces workload of maintenance, showing good application and popularization.

Paper Details

Date Published: 24 September 2012
PDF: 7 pages
Proc. SPIE 8451, Software and Cyberinfrastructure for Astronomy II, 845122 (24 September 2012); doi: 10.1117/12.925607
Show Author Affiliations
Yuhua Zhu, Nanjing Univ. of Posts and Telecommunications (China)
Dan Zhu, Nanjing Univ. of Posts and Telecommunications (China)
Jianing Wang, Nanjing Institute of Astronomical Optics & Technology (China)

Published in SPIE Proceedings Vol. 8451:
Software and Cyberinfrastructure for Astronomy II
Nicole M. Radziwill; Gianluca Chiozzi, Editor(s)

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