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Real-time horizontality adjusting and control system of a large platform applied to satellite experiment

  • Shi Sheng Zhong*
  • , Shi Peng Zhang
  • , Rui Wang
  • *Corresponding author for this work
  • School of Mechatronics Engineering, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

In order to satisfy a satellite horizontality requirement in an experiment, it is indispensable to monitor and adjust the horizontality of a large platform loading the satellite under the condition of ultra-low temperature with real time. So the control system design and control strategy are described in detail to accomplish the horizontality monitoring and adjusting. The system adopts the industry control computer as the upper computer and the SIEMENS S7-300 PLC as the lower computer. The upper computer that bases on industry configuration software IFIX takes charge of monitoring the platform and puts forward the control strategy. PLC takes charge of receiving the adjusting instructions and controlling the legs moving to accomplish the horizontality adjusting. The horizontality adjusting strategy is emphasized and the concept of grads is introduced to establish a mathematics model of the platform inclined state, so the adjusting method is obtained. Accordingly the key question of the automatic horizontality adjusting is solved in this control system.

Original languageEnglish
Pages (from-to)101-105
Number of pages5
JournalJournal of Harbin Institute of Technology (New Series)
Volume14
Issue number1
StatePublished - Feb 2007
Externally publishedYes

Keywords

  • A large platform
  • Automatic horizontality adjusting
  • Real-time monitoring

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