Hybrid indoor and outdoor localization for elderly care applications with LoRaWAN

• It is common for elderly to experience a decrease in health conditions, limiting independence. Very often, hospitalization is not required and at home assistance is a more effective solution. Ambient assisted living technologies can help in mitigating the need for continuous supervision, enabling the elderly to easily look for help in case of emergency. In this work, the well-known and widespread LoRaWAN communication infrastructure is evaluated for possible complementing indoor and outdoor positioning solutions, in order to alert a remotely-connected caregiver about accidents (e.g., falls). The choice of LoRaWAN is dictated by the capability to implement both private and public infrastructures. Satellite-based systems are addressed for outdoor localization, whereas the demanding task of indoor localization is solved by means of Ultra Wide Band technology. Results demonstrated sub-meter error in a typical indoor scenario, with average communication latency on the order of 700 ms. © 2020 IEEE.

Nyckelord

AAL

IoT

LoRaWAN

UWB

Accidents

Assisted living

Ultra-wideband (UWB)

Ambient assisted living

Communication infrastructure

Communication latency

Indoor and outdoor positioning

Outdoor localizations

Public infrastructures

Satellite-based system

Ultra-wideband technology

Indoor positioning systems

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