Due to the advancement in personal health care devices, healthcare monitoring of an individual at anytime and from any location becomes a reality. The major issue with most personal healthcare device is their high power consumption and frequent charging. It prevents such devices from being used incritical regions where there is no provision for continuous power or medical infrastructure. Energy harvesting is one of the methodologies extending the lifetime of a battery. This paper presents the design of an Internet of Things enabled personalized healthcare device for monitoring human vital signs. The hardware prototype is developed with a low cost Wi-Fi enabled embedded board known as NodeMCU. The NodeMCU interfaced with vital signs monitoring sensors, an activity monitoring sensor, a rechargeable battery, and a solar panel. The vital signs of a person, such as body temperature, heart rate and activity are collected in a cloud environment and an alert is sent to the caregiver under abnormal circumstances. The results show that the prototype can successfully monitor the vital signs and activity such as idle or fallen, and also the lifetime of the battery has been extended for long term use, contributing to a healthier life style.

中文翻译：

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物联网支持生命体征监测的个性化医疗保健设备设计

由于个人医疗保健设备的进步，随时随地对个人进行医疗保健监测已成为现实。大多数个人保健设备的主要问题是它们的高功耗和频繁充电。它可以防止此类设备在无法提供持续电力或医疗基础设施的关键区域使用。能量收集是延长电池寿命的方法之一。本文介绍了一种支持物联网的个性化医疗保健设备的设计，用于监测人体生命体征。硬件原型是使用低成本的支持 Wi-Fi 的嵌入式板开发的，称为 NodeMCU。NodeMCU 与生命体征监测传感器、活动监测传感器、可充电电池和太阳能电池板连接。一个人的生命体征，如体温、心率和活动都在云环境中收集，并在异常情况下向护理人员发送警报。结果表明，该原型机可以成功监测生命体征和活动，例如空闲或跌倒，并且电池的使用寿命得到延长，可以长期使用，有助于更健康的生活方式。