基于大数据的武术线上教学系统设计

Design of Online Martial Arts Teaching System Based on Big Data

现有线上武术教学系统对动作标准性的判断存在不足,导致武术线上教学效果较低,为此提出了基于大数据的武术线上教学系统设计。为了准确用户转播武术动作的表现情况,以带有集成的HS-USB物理层主机作为系统的主体硬件构架,采用同步串行接口(SynchronousSerialInterface,SSI)和增强型串行音频接口(EnhancedSerial AudioInterface,ESAI)搭建系统音频采样装置,设置5个通用异步收发器(UniversalAsynchronousReceiver Transmitter,UART)与教学信息实时交互。在软件设计方面,用户反馈图像范围内的像素被划分为若干个分子单元,系统借助背景与用户临界位置的像素信息提取用户的边缘轮廓。系统通过用户轮廓数据与武术动作反馈参数,给予用户对应的指导。测试结果表明,设计系统可以准确获取用户动作,且对应动作准确性达到了95.0%以上。

The existing online martial arts teaching system has deficiencies in judging the standardization of movements, resulting in low effectiveness of online martial arts teaching, for which a big data-based online martial arts teaching system design is proposed. In order to accurately relay the performance of martial arts actions by users, the main hardware architecture of the system is a host with an integrated HS-USB physical layer, and the system audio sampling device is built using Synchronous Serial Interface(SSI) and Enhanced Serial Audio Interface(ESAI), and five Universal Asynchronous Receiver Transmitter(UART) are set to interact with teaching information in real time.In the software design, the pixels within the user’s feedback image are divided into several molecular units, and the system extracts the user’s edge contour with the pixel information of the background and the user’s critical position. The system gives the user the corresponding instruction through the user contour data and the martial arts action feedback parameters. The test results show that the designed system can accurately acquire user actions and the accuracy of the corresponding actions is over 95.0%.