Implementation of Advanced Modified PCF in Large Telescope Control System | |
Shuai Xiaoying ; Zhang Zhenchao ; Zhu Yongtian | |
2008-07-14 | |
会议日期 | 2008-6-23 |
会议地点 | Marseille, France |
关键词 | PCF Telescope Control System WLAN APCF TCS |
卷号 | 7019 |
期号 | 7019 |
页码 | Vol.7019 23-1-8 |
英文摘要 |
Large Telescope Control System (TCS) is a complicated system, which contains thousands of actuators. Wired TCS is inconvenient to point and track for a large telescope. This paper proposes a TCS based on IEEE 802.11 Wireless Local Area Network (WLAN), which provides flexibility, reduced infrastructure costs, and greater convenience. The IEEE 802.11 standard MAC protocol includes the DCF and the PCF. The DCF is designed for asynchronous data transmission, while the PCF is designed for real-time data. The performance of a WLAN with DCF will fall when the number of wireless station increase in a basic service set (BSS). An advanced modified PCF (APCF) is presented to poll data from the AP to stations and response data from stations to the AP in CFP. The analysis indicates that APCF can improve communication performance, and is very suitable for large TCS. |
会议主办者 | The International Society for Optical Engineering |
会议录 | Advanced Software and Control for Astronomy II |
会议录出版者 | SPIE |
学科主题 | 自动控制 |
内容类型 | 会议论文 |
源URL | [http://ir.niaot.ac.cn/handle/114a32/552] |
专题 | 南京天文光学技术研究所_中科院南京天光所知识成果_会议论文 南京天文光学技术研究所_望远镜新技术研究室_会议论文 |
推荐引用方式 GB/T 7714 | Shuai Xiaoying,Zhang Zhenchao,Zhu Yongtian. Implementation of Advanced Modified PCF in Large Telescope Control System[C]. 见:. Marseille, France. 2008-6-23. |
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