Automatic regulatory control in type 1 diabetes without carbohydrate counting. (May 2018)

• Record Type: Journal Article
• Authors: Colmegna, Patricio; Garelli, Fabricio; De Battista, Hernán; Sánchez-Peña, Ricardo
• Is Part Of: Control engineering practice. Volume 74(2018)
• Page Start: 22
• Page End: 32
• Publication Date: 2018-05
• Subjects: Artificial pancreas -- Glucose control -- Switched LQG control -- Sliding mode control -- Insulin on board; Automatic control -- Periodicals; 629.89
• DOI: 10.1016/j.conengprac.2018.02.003
• Languages: English
• ISSNs: 0967-0661

Abstract

Abstract: A new approach to automatically regulate the glucose level in type 1 diabetes is presented in this work. This is the so-called Automatic Regulation of Glucose (ARG) algorithm, which is based on a switched Linear Quadratic Gaussian (LQG) inner controller, combined with an outer sliding mode safety loop with Insulin on Board (IOB) constraints. In silico and in vivo results without feedforward insulin boluses delivered at meal times indicate that safe blood glucose control can be achieved by the proposed controller. This controller is simple to migrate to well-known hardware platforms, and intuitive to tune using a priori clinical information.