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天文选址是天文研究的重要组成部分。在野外无人环境下,如何最大程度地确保望远镜正常工作是当前天文选址的迫切需求。实现了一套可以应用于野外天文定点选址情况下通过网络进行远程电源开关控制的电源控制系统,并可以根据需要实现视频图像的采集与现场状态监控。系统采用低功耗、低成本、高性能的S3C2440处理器为核心的ARM9开发,内嵌Linux操作系统,采用RS485总线与电源开关电路控制模块通信;通过OV9655的COMS摄像头采集视频。系统基于B/S构架,直接使用浏览器进行远程控制与监控,实现远程设备供电、断电复位、紧急情况强切,远端现场状态监控。此外,系统在自主望远镜维护上也有较好的应用价值。

Telescope-site selection for astronomy is important to astronomical research. It is needed to ensure a telescope in the wild for site selection to be effectively operated for its designated tasks. In this paper we present a remote-control system that can serve this purpose. The system allows users to take real-time videos and monitor the status of a telescope. We use an ARM9 board for development of the system. The ARM9 board has a S3C2440 processor as its core unit. The ARM9 board,which incorporates a Linux operation system,is of low cost and low power consumption,but can perform excellently. Through an RS485 bus the system can communicate with a module to control power-switch circuits. It can also take videos of connected modules with OV9655 COMS cameras. Based on the B /S framework the system has a series of realized functions,including remote control and status monitoring through a Web interface. The remote control /monitoring can be applied to turn on,reset,or cut off electric power supply to an on-site equipment. Cutting off will be especially needed in a case of emergency. Our system can also be applied in the maintenance of an automated telescope.