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A Low-Cost, Standalone, and Multi-Tasking Watch for Personalized Environmental Monitoring.

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    This paper introduces a compact, wearable environmental monitor with multiple sensors for real-time data collection. The device offers flexible, low-power monitoring and transmits data wirelessly for storage and medical analysis.

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    Area of Science:

    • Environmental monitoring hardware
    • Wearable sensor technology
    • Chemical and physical sensing

    Background:

    • Existing environmental monitoring solutions often lack portability and comprehensive sensing capabilities.
    • There is a need for integrated, low-power devices for continuous environmental data acquisition.

    Purpose of the Study:

    • To introduce a novel, modular, wrist-worn hardware system for multi-parameter environmental monitoring.
    • To evaluate the device's power consumption, efficiency, and data transmission capabilities.

    Main Methods:

    • Development of a four-layer hardware architecture incorporating various sensors (toxic gases, sound, pressure, humidity, temperature, motion).
    • Implementation of a modular design with independent sensor functionality and a warning system.
    • Utilizing Bluetooth Low Energy (BLE) 4.1 for data transmission to a smartphone and cloud storage.

    Main Results:

    • The developed device is compact, lightweight, and operates in a low-power mode for extended periods.
    • Real-time data monitoring is achieved via a display, with seamless data transfer to smartphones and cloud platforms.
    • The modular gas sensor node allows for easy replacement and adaptation to different target gases.

    Conclusions:

    • The proposed wearable device offers a flexible and efficient solution for comprehensive environmental monitoring.
    • The system facilitates real-time data collection, storage, and subsequent medical analysis.
    • The hardware design supports future extensions and improvements for advanced environmental sensing applications.