基于ZigBee技术的信息交互系统设计与实现

Design and Implementation of an Information Interaction System Based on ZigBee Technology

摘要:

基于生物电的人-机交互(HCI)技术作为特殊场景下常规人-机交互方法的一种补充,具有非常广阔的应用前景;为了解决基于生物电的HCI系统中多用户通信问题,文章设计并实现了一种基于ZigBee技术的信息交互系统;该系统主要由ZigBee无线通信模块、信息生成/处理模块、串口通信模块三部分组成,用以实现多用户间使用眼电信号(EOG)进行无线信息交互;在实验室环境下,眼电信号有效检出率98.2%,传输距离在无遮挡、无路由的情况下可达到70 m;实验结果表明该系统具有识别率高、稳定性好、配置简单、使用方便等优点,具有较强的实际应用价值。

Abstract:

Human-Computer Interface(HCI) technology based on bioelectricity, which is a supplement to conventional HCI methods, has a broad application prospects. In order to achieve multi-user wireless information interaction in bioelectrical HCI system, an information interaction system based on ZigBee technology was proposed in this paper. The system was composed of ZigBee wireless communication module, information generation/procession module and serial communication module. Furthermore, EOG signals were used to generate interactive information by automatic detecting and coding. Effective EOG signal detection rate was more than 95%, and the transmission distance could reach 70 m without router and without shading and blocking under laboratory environment. Experimental results show that this system has the advantages of low power consumption, good stability, strong expansibility, easy to use and great practical value.