Performance evaluation of holonic control of a switch arrival system

Abstract

International audienc

H2CM-Based Holonic Modelling of a Gas Pipeline

“…The objective of this article is to propose the implementation of the H²CM architecture to a pipeline transport system in order to provide operational flexibility in the phase of changes in the demand for products, keeping the optimization criteria of the generation of contaminated product. This preliminary study extends the performance evaluation of H²CM that was made on a water tanks system [8] with the notion of switching costs (contaminated product volume) and the dynamics of the pipeline (delay between the switch and the final tank filling).…”

“…The algorithms that need to be developed in this case study greatly differ from the ones previously published [8]. Indeed, the former was related to a single server of water and no setup times, while this is related to a single server generating setup wastes denoted contaminated product in this description.…”

“…If the present disturbance is not so aggressive that immediate changes are needed, then re-scheduling will be performed by optimal methods, otherwise re-scheduling will be done by any other computational method that is fast enough to find a solution. An online schedule algorithm for tanks filling minimizing the number of switches of the unique server was proposed in [8], and might be adapted to this specific case study. The main idea is to try and maximize the duration the server remains in the same position, while avoiding the situation where the rest of tank are empty at the same time.…”

“…The calculation time of the algorithm is very short, which makes us believe that this kind of scheduling, although it does not guarantee the best minimization of the amount of generated contaminated product, is a good candidate for a pertinent control in the situations where the input data are frequently disturbed. The algorithms that need to be developed in this case study greatly differ from the ones previously published [8]. Indeed, the former was related to a single server of water and no setup times, while this is related to a single server generating setup wastes denoted contaminated product in this description.…”

Proposition of an Implementation Framework Enabling Benchmarking of Holonic Manufacturing Systems

“…In this context, next step is a dissemination of the concepts, primarily through a wide industrial acceptance of the related developments. However, those control architectures suffer from a lack of performance guarantee, as they are mainly based on emerging behaviour techniques, such as multi-agent systems or holonic paradigm, making the performance of the control system highly dependent on the context of execution of the experiment [2]. Traditional benchmarking activity consists in evaluating the response of the control system to a manufacturing situation with a predefined set of data.…”