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Résilience, robustesse et sécurité des systèmes de production commandés à distance via un réseau sans qualité de service garantie

Jean Vareille 1, 2 Philippe Le Parc 1, 2 Yvon Autret 1, 2 David Espes 1, 2 Laurent Nana 1, 2
2 Lab-STICC_UBO_CID_IRIS
IBNM - Institut Brestois du Numérique et des Mathématiques, Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : We are working since 1997 on the safe control of production machines through communication network without guaranteed quality of service. The network with no guaranteed quality of service chosen at this time was the Internet, preferably over integrated service digital network ISDN or the switched telephone network (PSTN). A client-server system has been developed entirely in java language, which allows the remote control of the machines via applets executed in a Web browser. To ensure the robustness of the application and to deal with problems of variable communication quality of the network, we proposed the Gemma-Q, a kind of state-chart, which is derived from Gemma. It makes it possible to characterize the modes of operation of production systems in which communications have variable delays, and then to better ensure their security and that of their environment, thanks to a better control of their working. Currently we are working on the prediction of the communication quality with the aim to provide to the remote control operator a confidence indicator of the quality of the network, and of a time horizon, over which he can expect to remain connected to the machine maintained under control. We are also investigating the security of production systems against cyberattacks. Indeed, these systems are more and more subject to such attacks whose consequences may be disastrous on both economics and physical security of people and environment. We present recent results on point to point round-trip-time measurements acquired during remote control of robots between Brest and various locations around the world including New Caledonia and New Zealand, as well as results about forecasts of the quality of service of the communication network. The research history and prospects for further developments are briefly presented.
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Jean Vareille, Philippe Le Parc, Yvon Autret, David Espes, Laurent Nana. Résilience, robustesse et sécurité des systèmes de production commandés à distance via un réseau sans qualité de service garantie. 23ème Congrès Français de Mécanique (CFM 2017), Association Française de Mécanique, Aug 2017, Lille, France. ⟨hal-01687649⟩

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