Repository logo
  • Log In
    Log in via Symplectic to deposit your publication(s).
Repository logo
  • Communities & Collections
  • Research Outputs
  • Statistics
  • Log In
    Log in via Symplectic to deposit your publication(s).
  1. Home
  2. Faculty of Engineering
  3. Faculty of Engineering
  4. Nonlinear model predictive control of a robotic soft esophagus
 
  • Details
Nonlinear model predictive control of a robotic soft esophagus
File(s)
2021_07_DTSINDYC_MPC_manuscript_compressed.pdf (2.57 MB)
Author(s)
Bhattacharya, Dipankar
Hashem, Ryman
Cheng, Leo K
Xu, Weiliang
Type
Journal Article
Abstract
Strictures caused by esophageal cancer can narrow down the esophageal lumen, leading to dysphagia. Palliation of dysphagia has driven the development of a robotic soft esophagus (RoSE), which provides a novel in vitro platform for esophageal stent testing and food viscosity studies. In RoSE, peristaltic wave generation and control were done in an open-loop manner since the conduit lacked visibility and embedded sensing capability. Hence, in this work, RoSE version 2.0 (RoSEv2.0) is designed with embedded time of flight (TOF) and pressure sensors to measure conduit displacement and air pressure, respectively, for modeling and control. Model predictive control (MPC) of RoSEv2.0 is implemented to govern the peristalsis and air pressure profile autonomously. The implemented MPC used sparse identification of nonlinear dynamics with control (SINDYC) models to estimate the future states of ROSEv2.0. The dynamic models are discovered from the TOF and pressure sensor data. Peristalsis waves of speed 20 mm ⋅ s−1, wavelength 75 mm, and amplitudes 5, 7.5, and 10 mm were successfully generated by the MPC. Additionally, RoSEv2.0 with the MPC was employed to perform stent migration testing with various food boluses consistencies. The major contribution claimed in this article is the application of SINDYC-based MPC to solve the closed-loop control problem of RoSE for achieving desired peristaltic waves.
Date Issued
2022-10-01
Date Acceptance
2021-10-05
Citation
IEEE Transactions on Industrial Electronics, 2022, 69 (10), pp.10363-10373
URI
https://hdl.handle.net/10044/1/125316
URL
https://doi.org/10.1109/tie.2021.3121755
DOI
https://www.dx.doi.org/10.1109/tie.2021.3121755
ISSN
0278-0046
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Start Page
10363
End Page
10373
Journal / Book Title
IEEE Transactions on Industrial Electronics
Volume
69
Issue
10
Copyright Statement
Copyright © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Publication Status
Published
Date Publish Online
2021-10-27
About
Spiral Depositing with Spiral Publishing with Spiral Symplectic
Contact us
Open access team Report an issue
Other Services
Scholarly Communications Library Services
logo

Imperial College London

South Kensington Campus

London SW7 2AZ, UK

tel: +44 (0)20 7589 5111

Accessibility Modern slavery statement Cookie Policy

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science

  • Cookie settings
  • Privacy policy
  • End User Agreement
  • Send Feedback