Abstract
With growing interest in healthcare, wearable healthcare devices have been developed and researched. In particular, near-field communication (NFC) based wearable devices have been actively studied for device miniaturization. Herein, this article proposes a low-cost and convenient healthcare system, which can monitor heart rate and temperature using a wireless/battery-free sensor and the customized smartphone application. The authors designed and fabricated a customized healthcare device based on the NFC system, and developed a smartphone application for real-time data acquisition and processing. In order to achieve compact size without performance degradation, a dual-layered layout is applied to the device. The authors demonstrate that the device can operate as attached on various body sites such as wrist, fingertip, temple, and neck due to outstanding flexibility of device and adhesive strength between the device and the skin. In addition, the data processing flow and processing result are presented for offering heart rate and skin temperature. Therefore, this work provides an affordable and practical pathway for the popularization of wireless wearable healthcare system. Moreover, the proposed platform can easily delivery the measured health information to experts for contactless/personal health consultation.
Highlights
Published: 28 January 2021Peoples interest in well-being is increasing with rising concerns about their health such as pandemic [1,2], aging [3], and chronic diseases [4,5]
Heart rate and skin temperature are useful for daily health checking, symptom monitoring for infection as well [19,20]
Reported wearable healthcare devices have mainly focused on device miniaturization and wireless operation (i.e., Bluetooth and near-field communication (NFC)) for user convenience [21,22,23]
Summary
Peoples interest in well-being is increasing with rising concerns about their health such as pandemic [1,2], aging [3], and chronic diseases [4,5]. Reported wearable healthcare devices have mainly focused on device miniaturization and wireless operation (i.e., Bluetooth and near-field communication (NFC)) for user convenience [21,22,23]. To achieve wireless/battery-free operation, the electrical optimization process of NFC-based circuit is performed, and the smartphone application is programmed. Based on these optical and electrical optimizations, the device is implemented by the conventional semiconductor processing and simple soldering step. The adhesive strength is confirmed between the device and the skin Due to this flexibility and adhesion, the device can be firmly attached and operate at various body sites such as wrist, fingertip, temple, and neck, while continuously communicating with a smartphone. The accurate heart rate and temperature are obtained by performing the post-processing
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