Epidermal System for Body Temperature and Heartbeat Monitoring-Bluetooth Module Construction and Mobile Application

• Main Authors: CHANG,HUAM-MING, 張桓銘
• Other Authors: Ju-liang He
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/u44hjy

碩士 === 逢甲大學 === 生醫資訊暨生醫工程碩士學位學程 === 106 === As the IoT and wearable technology evolved, the use of smart devices such as mobile devices for realtime monitoring bioinformatics become more popular. It is anticipated that these wireless devices can contribute to the healthcare system for preventive medicine. More advanced sensor system, computing capability as well as powerful wireless transmission system are therefore essential for application. In this study, a skin type body temperature and heartbeat monitoring system is constructed. Control and Bluetooth module were activated through mobile application software. Body temperature and heartbeat were measured via this sensing system. During the study, a mini control board LinKITTM 7697 was utilized, where the pin sites were properly selected for accommodating a PB7-43 thermister and a home-made thin-film based strain gauge, respectively for monitoring body temperature and heartbeat pulses. Here, an Arduino script was used to receive the ADC output value of both thermistor and strain gauge. The Arduino script was also responsible for activating Bluetooth wireless transmission. After receiving the ADC value, the App Inventor 2 developed App software was responsible for calculating the body temperature, while the heartbeat was directly derived by calculating the signal peak-to-valley time spend. As a result of measurement for both temperature of frozen food and palm, it presents accurate temperature values on the Android mobile phone. In the case of heartbeat measurement, the heartbeat signal can also clearly show when putting the strain gauge on the whrist area.