基于单片机的数字语言学习系统改造

Improvement of the Digital Language Learning System Based on the MCU

针对Able DN3型、EF1型数字语言学习系统的学生登录问题，提出了一种可行的解决方法。该法是利用计算机的串口与单片机进行通信，再由单片机控制继电器的开和关，继电器直接控制的是学生终端机的供电，最终达到计算机软件自动控制学生终端机的硬启动，实现学生的自动登录。介绍了在广西民族大学语言实验室的应用效果，验证了其有效性和和可行性。

Proposes an applicable method to solve the problem for students logging in the Digital Language Learning System of Able DN3 and EF1. First, COMI communicates with MCU, which then controls the ＂on＂ and ＂off＂ of the relay. The relay directly controls the power supply to the terminal machines for students. In this way, the hard reset of the terminal machines, which are automatically controlled by computer software, is achieved, and it finally reaches the automatic login for students. This paper also introduces the application results at the language learning laboratories of Guangxi University for Nationalities, and proves its effectiveness and feasibility as well.