基于眼动跟踪的智能家居控制器  

Eye-tracking-based smart home controller

作　　者：王鹏[1] 陈园园 邵明磊[1] 刘博[2] 张伟超[1] WANG Peng;CHEN Yuan-yuan;SHAO Ming-lei;LIU Bo;ZHANG Wei-chao(School of Electric and Electronics Engineering,Harbin University of Science and Technology,Harbin 150080,China;School of Measurement-Control Technology and Communications Engineering,Harbin University of Science and Technology,Harbin 150080,China)

机构地区：[1]哈尔滨理工大学电气与电子工程学院,哈尔滨150080 [2]哈尔滨理工大学测控技术与通信工程学院,哈尔滨150080

出　　处：《电机与控制学报》2020年第5期151-160,共10页Electric Machines and Control

基　　金：国家自然科学基金(51607049);黑龙江省教育厅科学技术研究项目(12531097);哈尔滨市科技创新人才基金(2015RAQXJ013)。

摘　　要：针对现有智能家居控制器存在抗干扰及适应性均较差的问题,设计了一种基于眼动跟踪技术的智能家居控制器。该控制器使用现场可编程门阵列(FPGA)作为处理核心,根据人眼在红外光照射下的反射光斑特征,快速定位人眼,通过阈值分割、边缘检测及椭圆拟合定位光斑中心和瞳孔中心,使用映射函数构建视线与用户界面的位置关系,实现用户通过视线选择界面家电图标,然后搭配其它功能电路,通过眨眼控制家电的开启、关闭实现眼动控制家居电器。实验结果表明,该控制器有效控制准确率达92%,控制响应时间为0.47s,满足实时性的要求,同时采用视频图像处理技术能有效避免环境语音噪声的干扰,尤其适用于肢体残障人士。In view of the problems of poor anti-interference and low adaptability in the exiting smart home controller,a smart home controller based on eye-tracking technology was designed.The field programmable gate array(FPGA)was used as the processing core in the controller.It quickly locates the human eye based on the characteristics of the reflected spot of the human eye under infrared light,and locates the center of the spot and the pupil through threshold segmentation,edge detection,and ellipse fitting.The mapping function was used to build the positional relationship between the line of sight and the user interface,so that the user can select the interface home appliance icon through the line of sight,and then other functional circuits were used to control the home appliances by blinking to control the on and off of the home appliance.The results demonstrate the effective control rate of the controller is up to 92%,and the control response time is 0.47 s,which meets the requirement of real time.Besides,the controller can effectively reduce the interference of environmental noise by applying technique of video image processing,and is especially suitable for the physically disabled people.

关 键 词：眼动跟踪 瞳孔角膜反射法 智能家居 现场可编程门阵列 控制器 

分 类 号：TN619.35[电子电信—电路与系统]