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Multipath-Assisted Radio Sensing and State Detection for the Connected Aircraft Cabin.

Jonas Ninnemann1, Paul Schwarzbach1, Michael Schultz2

  • 1Institute of Traffic Telematics, Technische Universität Dresden, 01069 Dresden, Germany.

Sensors (Basel, Switzerland)
|April 23, 2022
PubMed
Summary

Multipath-assisted radio sensing (MARS) uses wireless signals to detect passenger occupancy in aircraft cabins. This technology enables efficient monitoring for improved safety and sustainability in connected aircraft.

Keywords:
aircraft boardingbeyond 5G (B5G)channel impulse response (CIR)connected aircraft cabink-nearest neighbor (kNN) classificationmultipath-assisted radio sensing (MARS)occupancy detectionprobabilistic grid mappingultra-wideband (UWB)wireless sensor network (WSN)

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Area of Science:

  • Aerospace Engineering
  • Wireless Communication Systems
  • Sensor Networks

Background:

  • Modern aircraft transportation prioritizes efficiency, reliability, and sustainability.
  • Connected aircraft cabins utilize digitized sensors and devices for comprehensive state detection.
  • Wireless sensor networks enable passenger localization and occupancy monitoring.

Purpose of the Study:

  • To present a multipath-assisted radio sensing (MARS) approach for passenger occupancy detection in aircraft cabins.
  • To evaluate the effectiveness of MARS using geometrical mapping of channel impulse response (CIR).
  • To explore applications in automated passenger safety announcements and checks.

Main Methods:

  • Utilizing channel impulse response (CIR) propagation information from wireless signals.
  • Applying geometrical mapping of CIR to identify reflection sources and derive occupancy state.
  • Employing probabilistic filtering and k-nearest neighbor classification for state detection.

Main Results:

  • Demonstrated reliable radio sensing for state detection in both anechoic chamber and cabin seat mockup environments.
  • Achieved accurate passenger occupancy detection using the MARS approach.
  • Validated the feasibility of radio-based sensing for aircraft cabin monitoring.

Conclusions:

  • The MARS approach offers a basis for integrating joint communication and sensing radio systems in connected aircraft cabins.
  • This technology contributes to energy and spectral efficiency in future aircraft systems.
  • Enables enhanced state monitoring for improved passenger convenience and safety.