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Title:: Physiological signal acquisition systembased on wireless sensor networks

Author(s):: Qiu Wenjiao; Zhang Yongkui; Key Laboratory of Child Development and Learning Science of Ministry of Education, Southeast University, Nanjing 210096, China

Keywords:: wireless sensor network; physiological signal; education

PACS:: TN92

DOI:: 10.3969/j.issn.1003-7985.2010.01015

Abstract:: 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.

References:

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

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