Estimation of carbon-dioxide production during cycling by using a set-membership observer

Nadia Rosero (1) , John Jairo Martinez Molina (2) , Maxime Chorin (2) , Samuel Vergès (3)

1 Univalle - Universidad del Valle [Cali]
2 GIPSA-SAFE - GIPSA - Safe, Controlled and Monitored Systems
3 HP2 - Hypoxie et PhysioPathologie

This paper presents a set-membership observer for the estimation of carbon dioxide production during cycling. The observer uses measurements of oxygen consumption and power at pedal level together with a discrete-time linear model of gas exchange dynamics. The real process is assumed to be disturbed by unknown but bounded disturbances. The proposed observer provides a deterministic interval which contains the real state. Since the excess of carbon dioxide production is linked to the overtake of the anaerobic threshold, the observer can be applied to predict the physiological state of the cyclist by using a reduced number of gas exchange sensors. The methodology is illustrated and validated using experimental data.

Domaines: Automatique / Robotique

Nadia Rosero, John Jairo Martinez Molina, Maxime Chorin, Samuel Vergès. Estimation of carbon-dioxide production during cycling by using a set-membership observer. ECC 2021 - 20th European Control Conference, Jun 2021, Rotterdam (on line), Netherlands. pp.2323-2328, ⟨10.23919/ECC54610.2021.9655078⟩. ⟨hal-03466931⟩