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    Wyświetlanie 1-3 z 3
    Tytuł:
    An Autonomous Wearable Sensor Node for Long-Term Healthcare Monitoring Powered by a Photovoltaic Energy Harvesting System
    Autorzy:
    Mohsen, Saeed
    Zekry, Abdelhalim
    Youssef, Khaled
    Abouelatta, Mohamed
    Powiązania:
    https://bibliotekanauki.pl/articles/227109.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    energy harvesting
    healthcare monitoring
    wearable sensor nodes
    photovoltaic
    Bluetooth low energy (BLE)
    Opis:
    In this paper, an autonomous wearable sensor node is developed for long-term continuous healthcare monitoring. This node is used to monitor the body temperature and heart rate of a human through a mobile application. Thus, it includes a temperature sensor, a heart pulse sensor, a low-power microcontroller, and a Bluetooth low energy (BLE) module. The power supply of the node is a lithium-ion rechargeable battery, but this battery has a limited lifetime. Therefore, a photovoltaic (PV) energy harvesting system is proposed to prolong the battery lifetime of the sensor node. The PV energy harvesting system consists of a flexible photovoltaic panel, and a charging controller. This PV energy harvesting system is practically tested outdoor under lighting intensity of 1000 W/m². Experimentally, the overall power consumption of the node is 4.97 mW and its lifetime about 246 hours in active-sleep mode. Finally, the experimental results demonstrate long-term and sustainable operation for the wearable sensor node.
    Źródło:
    International Journal of Electronics and Telecommunications; 2020, 66, 2; 267-272
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficient relay node management method for BLE MESH networks
    Autorzy:
    Bęben, Andrzej
    Bąk, Andrzej
    Sosnowski, Maciej
    Powiązania:
    https://bibliotekanauki.pl/articles/226000.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Bluetooth Low Energy
    BLE MESH
    relay management
    optimisation
    IoT
    Opis:
    The Bluetooth Low Energy (BLE) MESH network technology gains popularity in low duty IoT systems. Its advantage is a low energy consumption that enables long lifetime of IoT systems. The paper proposes and evaluates new MRT management methods, i.e. exact and heuristic, that improves energy efficiency of BLEMESH network by minimizing the number of active relay nodes. The performed experiments confirm efficiency of the MRT methods resulting in significantly lower energy consumption of BLE MESH network.
    Źródło:
    International Journal of Electronics and Telecommunications; 2020, 66, 1; 29-35
    2300-1933
    Pojawia się w:
    International Journal of Electronics and Telecommunications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Conditions of Cost-Effectiveness for the Use of Real-Time Location Systems (RTLS) in Medical Facilities and the Benefits of Effective Implementation Process
    Autorzy:
    Banat, Damian
    Powiązania:
    https://bibliotekanauki.pl/articles/1194239.pdf
    Data publikacji:
    2020
    Wydawca:
    Szkoła Główna Handlowa w Warszawie
    Tematy:
    healthcare system
    Real-Time Location Systems (RTLS)
    asset tracking
    Bluetooth Low
    Energy (BLE)
    change management
    Opis:
    The healthcare system today faces numerous challenges due to lack of visibility of resources and low utilisation, excessive rental as well as purchase of medical equipment. The article attempts to identify the possibilities of implementing a system of identification and location of assets in healthcare system institutions. This research presents market analysis in the context of available technological solutions. The implementation of real-time location system (RTLS) would enable not only tracking of equipment and inventory in medical facilities, but also increase visibility of inventory and manage the entire supply chain. Presentation of the proposed solution made it possible to assess costs, potential savings and the implementation process. This article is a starting point for a discussion on the cost-effectiveness of using RTLS in the healthcare system.
    Źródło:
    Edukacja Ekonomistów i Menedżerów; 2020, 58, 4
    1734-087X
    Pojawia się w:
    Edukacja Ekonomistów i Menedżerów
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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