基于MOOC的翻转课堂混合式教学多元信息展示系统设计

Design of MOOC⁃based multi⁃element information presentation system for blended teaching of flipped classroom

目前的教学展示系统内部对于教学资源的处理存在缺陷,导致系统在用户并发数较高时,常出现教学信息展示卡顿甚至崩溃的问题,为此设计一种基于MOOC的翻转课堂混合式教学多元信息展示系统。系统从硬件和软件两方面进行设计,硬件中主要设计了系统单片机的电路板,通过不同的步长设置改变启动模式,实现模块之间的供电;软件设计中,首先对教学多元信息进行编码和解码处理,减少教学信息在播放过程中的资源占用,使用Socket优化交互通信技术,提高交互通信的识别准确性,最后设计了数据库表结构,至此完成基于MOOC的翻转课堂混合式教学多元信息展示系统的设计。在实验室内搭建系统测试环境,模拟多用户同时登录系统,测试系统性能。实验结果表明,设计的系统能够有效减少由用户并发数增加而导致的卡顿情况。

As the current teaching display system has defects in the processing of teaching resources,which results in some problems that the system often appears in stick or even collapse in the teaching information presentation when the concurrent number of the users of the system is high,a MOOC⁃based multi⁃source information presentation system for blended teaching of flipped classroom is designed.The system is designed in both aspects of hardware and software.In the hardware design,the circuit board of the SCM(single chip microcontroller)of the system is designed mainly.The startup mode is changed by different step length settings to realize the power supply between the modules.In the software design,the encoding and decoding processing for the teaching multi⁃element information are performed firstly to reduce the resource occupation of teaching information in the playback process,and then the Socket is used to optimize interactive communication technology to improve the recognition accuracy of interactive communication,after that,the structure of database table is designed.So far,the design of the MOOC⁃based multi⁃source information presentation system for blended teaching of flipped classroom is completed.The system testing environment is built in the laboratory to simulate multiple users logging into the system at the same time and test the system performance.The experimental results show that the designed system can effectively reduce the jam caused by the increase of concurrent users.