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On Human-in-the-Loop CPS in Healthcare: A Cloud-Enabled Mobility Assistance Service

Published online by Cambridge University Press:  06 February 2019

Ricardo C. de Mello Open the ORCID record for Ricardo C. de Mello [Opens in a new window] ,
Mario F. Jimenez ,
Moises R. N. Ribeiro ,
Rodrigo Laiola Guimarães  and
Anselmo Frizera-Neto Open the ORCID record for Anselmo Frizera-Neto [Opens in a new window]
Ricardo C. de Mello*
Affiliation:
Electrical Engineering Graduate Program, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitoria, 29075-910, Brazil. E-mails: moises@ele.ufes.br, frizera@ieee.org
Mario F. Jimenez
Affiliation:
Bioengineering Graduate Program, El Bosque University, Bogotá, Colombia. E-mail: mariof.jimenez@gmail.com
Moises R. N. Ribeiro
Affiliation:
Electrical Engineering Graduate Program, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitoria, 29075-910, Brazil. E-mails: moises@ele.ufes.br, frizera@ieee.org
Rodrigo Laiola Guimarães
Affiliation:
Postgraduate Program in Computer Science, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitoria, 29075-910, Brazil. E-mail: rlaiola@inf.ufes.br
Anselmo Frizera-Neto
Affiliation:
Electrical Engineering Graduate Program, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitoria, 29075-910, Brazil. E-mails: moises@ele.ufes.br, frizera@ieee.org
*
*Corresponding author. E-mail: ricardo.mello@ieee.org
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Summary

Despite recent advancements on cloud-enabled and human-in-the-loop cyber-physical systems, there is still a lack of understanding of how infrastructure-related quality of service (QoS) issues affect user-perceived quality of experience (QoE). This work presents a pilot experiment over a cloud-enabled mobility assistive device providing a guidance service and investigates the relationship between QoS and QoE in such a system. In our pilot experiment, we employed the CloudWalker, a system linking smart walkers and cloud platforms, to physically interact with users. Different QoS conditions were emulated to represent an architecture in which control algorithms are performed remotely. Results point out that users report satisfactory interaction with the system even under unfavorable QoS conditions. We also found statistically significant data linking QoE degradation to poor QoS conditions. We finalize discussing the interplay between QoS requirements, the human-in-the-loop effect, and the perceived QoE in healthcare applications.

Keywords

HealthcareCyber-physical systemsAssistive roboticsCommunication networkscloud roboticsQoSQoE
Type
Articles
Information
Robotica , Volume 37 , Issue 9 , September 2019 , pp. 1477 - 1493
Copyright
© Cambridge University Press 2019 

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