基于OpenWrt的网络校时自动打铃器

Automatic Bell with Network Timing Based on OpenWrt※

简要地介绍了开源路由系统OpenWrt平台下的小型项目开发。该项目采用OpenWrt路由器为硬件平台,通过opkg软件包系统安装WEB服务器、php解析器、mysql数据库、NTP客户端、MP3播放器,然后编写php程序和必要的shell脚本,完成各项功能调用和管理配置,实现项目所需的各项功能。本项目具有硬件投入少、开发效率高、对开发者技术要求低等优点。这种短平快的开发方式,在一些特定的开发场景中,具有一定的应用价值。

This paper briefly introduces the development of small projects on open source routing system OpenWrt platform. The project adopts the OpenWrt router as hardware platform, through the opkg package system it installes WEB server, php parser, mySQL data-base, NTP client, MP3 player, then it writes the php program and the necessary shell script to complete all function calls and configura- tion management and it realizes various functions needed for the project. This project has the advantages of low hardware investment, high efficiency of development, and low technical requirements for developers. This kind of short term rapid development way has certain application value in specific development scenarios.