Physiological signal acquisition system based on wireless sensor networks  

一种基于无线传感器网络的生理信号采集系统(英文)

作　　者：邱文教[1] 张永魁[1] 

机构地区：[1]东南大学儿童发展与学习科学教育部重点实验室,南京210096

出　　处：《Journal of Southeast University(English Edition)》2010年第1期73-77,共5页东南大学学报（英文版）

基　　金：The National Natural Science Foundation of China(No.60775057)

摘　　要：Based on wireless sensor networks, a physiological signal acquisition system is proposed. The system is used in classroom education in order to understand the physiological changes in the students. In the system,the biological electrical signal related to student attention and emotion states can be measured by electrocardiography signals. The bioelectrical signal is digitalized at a 200 Hz sampling rate and is transmitted by the ZigBee protocol. Simultaneously, the Bluetooth technology is also embedded in the nodes so as to meet the high sampling rate and the high-bandwidth transmission. The system can implement the monitoring tasks for 30 students, and the experimental results of using the system in the classroom are proposed. Finally, the applications of wireless sensor networks used in education is also discussed.提出了一种应用于课堂教育的无线生理采集系统,以了解学生在上课过程中的生理变化情况.系统中,反映学生的注意力和情绪状态的生理电信号可通过测量ECG来获得.生物电信号采用200Hz的采样速率,并由ZigBee协议进行无线传输.同时,节点嵌入了蓝牙技术以适应高采样速率和高带宽的传输要求.本系统可以同时对30个学生进行监测,并且给出了系统在教室执行监测任务的实验结果.最后探讨了无线传感器网络在教育领域的应用.

关 键 词：wireless sensor network physiological signal EDUCATION 

分 类 号：TN92[电子电信—通信与信息系统]