一种基于微信小程序在RTS2的控制框架扩展

A Control Framework for RTS2 Based on the WeChat Micro-program

望远镜自主控制是现代天文观测技术的重要组成部分,在当前主流的自主控制系统中,开源的远程望远镜控制系统第2版具备模块化和即插即用的设计理念,且具有快速响应能力和稳定工作的特点,被广泛应用于天文望远镜自主控制系统。由于远程望远镜控制系统第2版基于Linux平台,主要基于命令行界面(Command-Line Interface,CLI)进行远程访问控制,所以对观测人员的要求比较高。深入分析远程望远镜控制系统第2版,对JS对象标记应用程序编程接口(Java Script Object Notation Application Programming Interface,JSONAPI)进行适度改造,以JS对象标记(Java Script Object Notation,JSON)为数据传输格式,以移动终端的微信应用作为载体,跨越不同平台对天文望远镜控制系统进行数据访问和功能调用。利用微信小程序,将控制系统移植到微信小程序中,使天文技术研究人员能够方便快捷地利用移动终端在微信平台上远程控制天文望远镜和实时监控天文望远镜自主控制系统的状态。采用该模式,可扩展到天文公共对象模型(Astronomy Common Object Model,ASCOM)等其他自主控制架构,从而实现一个通用的基于微信小程序的移动终端远程控制系统。

The independent control of telescope is an important part of modern astronomical observation technology.In the current mainstream autonomous control system,the open source RTS2 has the characteristics of modularity,plug-and-play,fast response and stable operation,resulting in its widely application in the autonomous control system.As RTS2 is mainly based on the Linux platform,which is mainly based on the CLI for remote access control,the requirements for the observers are strict.In this paper,the RTS2 system is thoroughly analyzed,and the JSON API is modified to use JSON as the data transmission format.The microcomputer application in the mobile terminal is used as the carrier,and the data access and function call of the RTS2 telescope control system are carried out across different platforms.The control system is transplanted to WeChat Micro-program,so that astronomical researchers can quickly and easily use the mobile terminal in the WeChat platform for telescope remote control and real-time monitoring telescope autonomous control system status.With this model,it can be extended to other autonomous control architectures such as ASCOM,so as to realize a remote control of mobile terminal based on micro-application.