应用天文研究组知识库

圆顶的自动化控制对提高观测数据质量和减轻观测人员工作量具有重要意义。针对云南天文台1.2m望远镜的圆顶特殊结构——两个半球向两侧平移打开、胶轮摩擦驱动旋转，采用嵌入式控制板现场控制、有线以太网远程通讯的架构，研制了圆顶自动化控制系统，嵌入式控制板采用运行Linux系统的FL2440，圆顶位置检测采用8个霍尔探头、3个磁铜相结合的方式，达到了15。的位置分辨率，列出较详细的控制指令集。经过两个月的试运行，结果表明：系统安全、稳定、可靠，满足日常观测的需求。

Dome automation is very important for improving data quality and reducing observers' workload. For the dome of the 1.2m Telescope at Yunnan Observatories, an automation control system is designed to avoid the occlusion effect caused by the dome during observation. The dome has a special structure with two hemispheres that can be opened horizontally with its rotation driven by tire friction. This auto control system uses an embedded system to control the dome by voltage conversion and remote network communication. The embedded device is FL2440 and its operating system is Linux. This architecture uses 8 Hall sensors and 3 magnets to determine the position of the dome. Test result indicates that its position resolution accuracy reaches to 15°. Details of the instruction set are given. After two months of trial, we find that the system is secure, stable and reliable. It can also meet the needs of regular observations.