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Vol. 154, Issue 7, July 2013, pp. 209-216




Psychology State Acquiring Device Based on Sitting Postures for Implicit Interaction
Wei WANG, Xinzhong LEI, Yunhe YUAN, Lei CHAI, Chao CHEN

School of Information & Electrical Engineering, Hebei University of Engineering, Hebei Handan, 056038, China
E-mail: wangwei83@hebeu.edu.cn


Received: 9 May 2013   /Accepted: 19 July 2013   /Published: 31 July 2013

Digital Sensors and Sensor Sysstems


Abstract: Context-aware is very important for implicit interaction. User's psychology state as a kind of user context can be used in the interaction to improve quality and to make the service more individual. In this paper, a psychology state acquiring device based on sitting postures for implicit interaction is developed. The device consists of two parts: pressure sensor matrix and micro control unit. The former is made up of 40 pairs of pressure sensor node to sense pressure distribution on it, and the latter has a power supply module, first/second level CD4051 parts, operational amplifier LM324, AD0804, and STC89C52RC mainly to realize sampling control and analysis. With this device, several experiments are carried on. It can be seen that the effect is good enough in single set testing, area (palm/sitting) testing and the actual environment testing. So it can be used in implicit human computer interaction researches and applied in another area.


Keywords: Implicit interaction, User context, Affective computing, Psychology state, Sitting posture.


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