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Valérie Renaudin

University Gustave Eiffel, France

Smart Processing with Wearable Devices: Shall We Consider the Human Influence?

Wearable devices embed inertial sensors whose records are processed for navigation instructions, health assessment, sports training or change in mobility behaviour. The applications are processing inertial or telecommunication signals sensed in our clothes, shoes and glasses. Complex methods, more and more based on artificial intelligence, are developed to process these data but they sometimes forget that human behaviour defies the developed methods. Defining the minimum performance requirements for a targeted application, calibrating embedded sensors and accounting for the hardware constraints of the wearables are classical R&D steps. The influence that humans can have on the quality of measurements (signal attenuation by the human body, change of behaviour, ageing, etc.) is however often forgotten. In this presentation, we will analyse the observability of gait parameters and navigation data with signals sensed by devices worn on different body parts (upper/lower body). We will also observe the human gait variation for the same person in different kinematic contexts (visually impaired people guided by a cane or a dog). The analysis will be supported by a theoretical and experimental approach with inertial signals and GNSS phase and pseudo-ranges data collected by pedestrians.

Valérie Renaudin is a Professor at Gustave Eiffel University, France. She obtained an MSc degree in Geomatics Eng. in 1999, and a PhD in Computer, Communication, and Information Sciences at EPFL in 2009. She was Technical Director of the Swissat company in Switzerland, where she developed real-time positioning solutions based on a permanent global network of satellite navigation systems (GNSS), and Senior Research Associate at the University of Calgary, Canada. She currently heads the Geopositioning Laboratory (GEOLOC) at the Gustave Eiffel University in France, where she has built a team specializing in the positioning and navigation of travellers. Her research focuses on indoor/outdoor navigation methods and systems using GNSS, as well as inertial and magnetic data, especially for pedestrians to improve sustainable personal mobility. She founded the nav4you company in 2021 developing location-based services for the safety of firefighters in intervention, defence and underground activities. She is the Editor in Chief of the new open access IEEE journal of Indoor and Seamless Positioning and Navigation (J-ISPIN) that she launched in 2022. She is also a member of the steering committee of the international conference “Indoor Positioning and Indoor Navigation”. Valérie Renaudin has received several awards including a Marie Curie European grant for the smartWALK project.

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