NIAOT OpenIR  > 中国科学院南京天文光学技术研究所  > 会议论文
Implementation of Advanced Modified PCF in Large Telescope Control System
Shuai Xiaoying; Zhang Zhenchao; Zhu Yongtian
2008-07-14
Source PublicationAdvanced Software and Control for Astronomy II
Volume7019
Issue7019
PagesVol.7019 23-1-8
Conference Date2008-6-23
Conference PlaceMarseille, France
Funding OrganizationThe International Society for Optical Engineering
PublisherSPIE
Abstract
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.
KeywordPcf Telescope Control System Wlan Apcf Tcs
Subject Area自动控制
Document Type会议论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/552
Collection中国科学院南京天文光学技术研究所_会议论文
望远镜新技术研究室_会议论文
Recommended Citation
GB/T 7714
Shuai Xiaoying,Zhang Zhenchao,Zhu Yongtian. Implementation of Advanced Modified PCF in Large Telescope Control System[C]:SPIE,2008:Vol.7019 23-1-8.
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