Authors:
Nishiki Motokawa
;
Anna Yokokubo
and
Guillaume Lopez
Affiliation:
Aoyama Gakuin University, Kanagawa, Japan
Keyword(s):
Hydration, System, Water Intake, Heart Rate, Wearable.
Abstract:
Hydration is essential for maintaining life. Consequently, a lack of awareness of the amount of water required and the actual amount of water intake has been issued for all generations and may lead to diseases that result in death. However, existing systems still have limited capabilities for tracking hydration reminder systems in unconstrained, realistic environments. Therefore, this study employs personalized information based on the user’s biometric information and environmental information. We proposed and developed a smart bottle cap system that includes an environmental sensor, a barometric pressure sensor, an infrared sensor, the user’s heart rate from a smartwatch, and a cap-shaped shell to create a compact system. Our proposed system, ‘HydReminder-W,’ promotes proper hydration using the individual’s biometric information, which teaches individuals about the lack of hydration. A comparison of hydration with HydReminder-W showed that the amount of water intake increased with t
he use of HydReminder-W. The average System Usability Scale (SUS) score of all the subjects was 78.9 points, confirming that HydReminder-W has excellent usability and is helpful as a hydration promotion system.
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