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ORIGINAL ARTICLE
Year : 2019  |  Volume : 5  |  Issue : 4  |  Page : 162-169

Understanding the design rules for a nonintrusive, textile, heart rate monitoring system


1 Advanced Textiles Research Group, School of Art and Design, Nottingham Trent University, Nottingham, UK
2 Advanced Textiles Research Group, School of Art and Design, Nottingham Trent University, Nottingham; Department of Chemistry, University of York, York, UK

Correspondence Address:
Theodore Hughes-Riley
Advanced Textiles Research Group, School of Art and Design, Nottingham Trent University, Nottingham
UK
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/digm.digm_27_19

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Background and Objectives: Nonintrusive heart rate (HR) monitoring can be a useful tool for health monitoring. By creating capacitively coupled textile electrodes, a comfortable monitoring system can be integrated into seating or bedding that can monitor HR through clothing. This work empirically studied two factors for a system of this type: the electrode size and the material worn by the subject. Materials and Methods: HR measurements were taken using six different sizes of the rectangular textile electrode with four subjects and the signal-to-noise ratio (SNR) of the signals were analyzed. A further set of experiments were conducted with a single subject and a fixed electrode size where different materials were worn. Results: Electrode size was seen to have a statistically insignificant effect on the collected signal quality. The SNR was also largely unaffected by the worn material type. Conclusion: This study provided empirical data relating to two important factors for nonintrusive, textile, and HR monitoring systems. This data will be helpful for designing a seat-based HR monitoring system or to understand the operational limitations of a system of this type.


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