4.6 Article

Wearable Cardiorespiratory Sensors for Aerospace Applications

Journal

SENSORS
Volume 22, Issue 13, Pages -

Publisher

MDPI
DOI: 10.3390/s22134673

Keywords

Air Traffic Management; cognitive ergonomics; cardiorespiratory; ECG; fuzzy systems; heart rate; mental workload

Funding

  1. THALES Australia [RE-02544-0200315666]
  2. Northrop Grumman Corporation [RE-03163-0200317164]

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This study verifies the performance of a cardiorespiratory sensor for air traffic management and avionics applications and compares it with clinical-grade equipment. The study also considers the impact of cognitive workload on cardiorespiratory monitors and explores the uncertainty in cognitive state estimation.
Emerging Air Traffic Management (ATM) and avionics human-machine system concepts require the real-time monitoring of the human operator to support novel task assessment and system adaptation features. To realise these advanced concepts, it is essential to resort to a suite of sensors recording neurophysiological data reliably and accurately. This article presents the experimental verification and performance characterisation of a cardiorespiratory sensor for ATM and avionics applications. In particular, the processed physiological measurements from the designated commercial device are verified against clinical-grade equipment. Compared to other studies which only addressed physical workload, this characterisation was performed also looking at cognitive workload, which poses certain additional challenges to cardiorespiratory monitors. The article also addresses the quantification of uncertainty in the cognitive state estimation process as a function of the uncertainty in the input cardiorespiratory measurements. The results of the sensor verification and of the uncertainty propagation corroborate the basic suitability of the commercial cardiorespiratory sensor for the intended aerospace application but highlight the relatively poor performance in respiratory measurements during a purely mental activity.

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