Wearable sensor vest with wireless charging: An energy-efficient safety solution for children

Mirjami Jutila, Mari Ervasti, Esko Strömmer, Mika Hillukkala, Pekka Karhula, Juhani Laitakari

    Research output: Contribution to journalArticleProfessional


    Mobile and wearable sensors are increasingly becoming our everyday life in monitoring and controlling health, well-being and security. Our work presents the technological enablers and requirements for building a complete end-to-end energy-efficient system for improving and controlling safety issues for children in day-care centers and schools. We designed a proof-of-concept for a wearable sensor vest with integrated wireless charging that takes place in the ordinary repository for the vests, such as in a wardrobe or a coat rack, without requiring any specific actions from the user. The developed sensor vest provides information about the location and well-being of children, based on received signal strength indication (RSSI), global positioning system (GPS), accelerometer, and temperature sensors. Teachers and parents are able to receive alerts and notifications, e.g., when a child moves across a certain restricted outdoor or indoor area, through gateways that have connectivity to a server or cloud. Piloting and technological implementations are based on a participatory study conducted among children, teachers, and parents, to gain important knowledge and understanding about the real user needs and service system usability requirements. The vest is part of a larger framework to provide digital safety applications and services through various sensor devices.
    Original languageEnglish
    Pages (from-to)32-35
    JournalInternet of Things
    Issue number1
    Publication statusPublished - 2015
    MoE publication typeD1 Article in a trade journal


    • mobile sensor
    • wearable sensor


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