A framework for real-time communication based object oriented industrial messaging services

Abstract

The goal of the ongoing project described in this paper is to provide an object oriented realtime industrial messaging service on top of a Quality of Service (QoS) aware Object Request Broker (ORB) with real time network communications. Our project has investigated object oriented solutions for industrial messaging services. The corresponding prototype offers a portable object oriented industrial messaging service implemented in Java. We have built a QoS aware extension of this service based on Jonathan, a flexible ORB that allows the introduction of temporal QoS to handle real time constraints. The full prototype is based on the AJAX toolkit, our binding factory for ATM networks.

A methodology based on distributed object-oriented technologies for providing remote access to industrial plants

“…In the future, the adoption of IPv6 protocols (RFC 2460(RFC , 1998, as well as the introduction of more efficient underlying networks (such as ATM), may improve the behaviour of the remote access systems as they introduce better QoS mechanisms. Although there are some experiences with distributed oriented architectures over ATM networks (Seinturier, Laurent, Dumant, Gressier-Soudan, & Horn, 1999), they are not very common in industrial environments yet. At present, this drawback can only be solved in intranets where the networks underneath provide the necessary QoS parameters.…”

Using Uml for Modelling Remote Access to Manufacturing Systems

“…There are works that use distributed object oriented technologies as applied to the manufacturing field. For instance, the work of Seinturier, et al (1999) and Guyonnet, et al (1997) Valenzano, et al 1992) over CORBA. They have adopted MMS as the basis of an objectoriented design of shop floor applications.…”

Java real-time distributed processing over ATM networks with Chorus/OS

“…By contrast, the hardware abstraction granted by the Java language and its virtual machine, combined to the portability of the Java bytecode allows the introduction of portable Virtual Manufacturing Devices (VMD) [27], as defined by the MMS model [34]. Then, unlike most local area networks, ATM provides a communication service with performance guarantees, associated to high bandwidth availability and enhanced scalability.…”