Scheduling networked state estimators based on Value of Information

• Autores: Adam Molin, Hasan Eren, Karl Henrik Johansson
• Localización: Automatica: A journal of IFAC the International Federation of Automatic Control, ISSN 0005-1098, Nº. 110, 2019
• Idioma: inglés
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• Resumen

  • This paper proposes a novel method for information management of a networked system for the purpose of efficient state estimation. Data shared between entities is transmitted over a common communication network. Based on the notion of Value of Information (VoI), we design a prioritizing scheduler in which systems determine the benefit of sharing their real-time data to improve state estimation accuracy. The system with the highest VoI is granted a time slot to provide its data. By using a rollout strategy, feasible algorithms are developed for computing the VoI-based priorities. For decoupled subsystems, performance certificates of the VoI-based strategy are derived. An automotive case study evaluates the proposed approach.