A wearable IoT-based health vital signs monitoring system to reduce mortality rate in developing countries

Early detection and diagnosis of basic health condition will result in successful treatment of diseases and reduced fatality rate in developing countries. It is possible to extract human bio-signals and use it to better understand the bodily health status and reaction to external factors. This new Vital Smart System (VSS) design has in-built sensors which a user wears as a wrist band without interfering with his/her daily life activities to monitor his/her major vital signs (BT, BP, HR), of which current system has limitations to achieve. Using the Dynamic System Design Methodology (DSDM), a more technically robust, cost-effective and portable real time device was designed. This device contains an IoT interface (BLE) that connects to smart phones; a GSM interface (SIM900A) relying on AT command framework that accesses defined medical personnel on the network in cases of emergencies; optical health LEDs that alerts the user; thus, enabling consistent self-assessment of the individual’s health condition. In this research therefore, we provided a generalized smart three-in-one vital sign system that ensures effective monitoring and early detection of the user’s health status via an optimization of offline and online cross-interfaces of standalone sensors.