The Auto Control System of Dome's Window-Blinds at Lijiang 2.4m Telescope

Wang Deqing; Ding Xu; Lun Baoli; Wang Chuanjun; Fan Yufeng; He Shousheng; Xin Yuxin; Yu Xiaoguang

Astronomical Research and Technology > 2019 > 16(3): 359-365.

Wang Deqing, Ding Xu, Lun Baoli, Wang Chuanjun, Fan Yufeng, He Shousheng, Xin Yuxin, Yu Xiaoguang. The Auto Control System of Dome's Window-Blinds at Lijiang 2.4m Telescope[J]. Astronomical Research and Technology, 2019, 16(3): 359-365.

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The Auto Control System of Dome's Window-Blinds at Lijiang 2.4m Telescope

Wang Deqing^1,2,3,
Ding Xu^1,3,
Lun Baoli^1,3,
Wang Chuanjun^1,2,3,
Fan Yufeng^1,3, ,,
He Shousheng^1,3,
Xin Yuxin^1,2,3,
Yu Xiaoguang^1,3

1. Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China

More Information

Received Date: November 02, 2018
Revised Date: December 10, 2018
Available Online: November 20, 2023

Graphical Abstract

Abstract

Abstract

Super-hemispherical dome with tracking and sliding devices was built for Lijiang 2.4m optical telescope, and as an important part of the dome, window-blinds were designed to reduce the turbulence which was caused by enclosure itself and electric devices. But windows-blinds need to be operated manually on high platform with risks and long time, which also made them fragile. Now they can be controlled automatically after transforming their mechanical structure. The auto control system's architecture is that host computer controls the embedded system in STM32 board through interface of WiFi module, serial port, or handles to realize multi-channel control. The STM32 board, as the slave part, provides the PWM to DRV8255 to drive the stepper motor. In this way, we realize the automatic control, and further on we call telescope's DB and set the threshold of weather parameter in order to control the dome more accurately. Through a month of trial, the system is stable, reliable, and can meet the needs of observation.
- Automation control,
- Dome's windows-blinds,
- Embedded system,
- STM32

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References (9)

References

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