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Over the last ten years, enterprises focus their efforts on improving collaboration prospective with their partners, resulting in collaborative business organization. Making a heavy use of ICT and service oriented technologies these strategies are first developed at the business level and need to be extended to the industrial level. Building an "industrial service" environment involves adapting...
Wireless technology is a central component of many factory automation infrastructures in both the commercial and government sectors, providing connectivity among various components in industrial realms (distributed sensors, machines, mobile process controllers). However wireless technologies provide more threats to computer security than wired environments. The advantageous features of Bluetooth technology...
This paper discusses an architecture that aims to unify and simplify the supervision and control of networked devices in commercial building environments. To be adoptable for real-life applications, the technical key features of such an architecture are mainly derived from four high-level requirements: the system must add true user value, still be easy to use, work for a broad range of quite different...
Facing trends in industrial manufacturing adaptability of manufacturing systems increase its importance in design and application resulting in a claim for decentralized control and distributed intelligence. This type of control requires a new design methodology with respect to up to now used design approaches. Current control system description and specification technologies are only limited useable...
Downtimeless evolution of distributed automation systems (changes during runtime) sets high demands on the underlying concepts and methodologies. Within the εCEDAC project a sophisticated description of the underlying system, including state information as well as capabilities of the hardware, is used. In combination with an engineering tool it offers a great amount of engineering support, thus keeping...
The control of robotic systems actuated by Shape Memory Alloy (SMA) wires is still an open issue. The goal of this work focuses on the development of a competent control system for a humanlike, 2-DOF, SMA actuated finger. We pursue this objective through a visual-servoing scheme and the implementation of classical decoupled PID controllers for the joint angles. Experimental results prove the efficacy...
The Controller Area Network (CAN) protocol produces data inconsistencies in some scenarios. A previous work proposed a new protocol called MajorCAN which is a small modification to CAN. MajorCAN does not present the re- ported error scenarios thus ensuring data consistency. Al- though MajorCAN has been thoroughly simulated, no formal verification has been performed so far. In this paper we de- scribe...
The use of multimedia within industrial applications has become commonplace, targetting improved process monitoring and machine vision. In both cases, the multimedia information is commonly distributed and subject to time constraints that must be met across networks while avoiding untolerable interference over typical control flows. This can be achieved with Constant Bit-Rate (CBR) channels, typically...
The onward dispersion of Ethernet based structures with decentralized and distributed multi-user environments in automation leads towards Networked Automation Systems (NAS). The new modern structures are less expensive and at the same time more flexible than classical ones. However, they induce non-deterministic delays. Hence, the detailed analysis of the resulting response time is not only prerequisite...
Evaluation of response times in Networked Automation System (NAS), especially ethernet-based NAS, is a new challenge in automation domain. This paper presents a feasible simulation approach for this issue. A model library of typical NAS structure is built using Modelica/Dymola. Modular modeling concept is implemented to enable a better representation of system structure. The presented toolbox allows...
This paper introduces a formal specification model that covers a large class of real Flexible Manufacturing System (FMS). Using this model, a designer expresses the functional capacities of his system and the product flows. Parallel manufacturing processes, having, transformation, assembly, disassembly, test and storage operations, are considered. FMS specification is automatically transformed into...
The flexible time-triggered on CAN is a protocol to support synchronous and asynchronous traffic over a CAN fieldbus. The use of redundant buses is a recent evolution to the main idea of FTT. Despite the reference FTT-CAN architecture support to master replication, the current FTT implementation does not support replicated masters together with bus media redundancy. This paper presents an evolution...
Early detection of system failure required continuous monitoring of electro-mechanical system which required embedded prognostics devices. Unfortunately, the current research and industrial solutions do not provide a user friendly and rapidly configurable environment to create 'adaptive microprocessor size with supercomputer performance' embedded solution in order to reduce downtime. Developing a...
The emerging technology of wireless sensor network (WSN) has changed the way people interact with the physical world. WSN produces myriad interdisciplinary research issues on information processing, control, communication and computation. It has also provided new paradigm for factory automation that has remarkable impacts on control, tracking, monitoring, and diagnostics of the manufacturing processes...
Performance measurement can be defined as the process of quantifying the efficiency and effectiveness of organisations and actions. This paper postulates a comprehensive supply chain performance measurement approach which evaluates a supply chain both from structure and operational levels. The paper first elaborates on why supply chain should be evaluated from these two levels, and then performance...
This paper describes the development of a remote laboratory in the area of automatic and robotic engineering. The laboratory is based on an educational platform around a robotic arm that allows emulating a practical laboratory in which engineering students can confirm their theoretical results comparing them with the real paths traced by the robot. Thus, the research work presented in the article...
Commercial transport planning as well as individual intra-city or inter-city traffic in densely populated regions, both in Europe and the US, increasingly suffer from congestion problems, to an extent which e.g. affects predictable transport planning substantially (except - so far - for overnight tours). Due to the highly dynamic character of congestion forming and dissolving, no static approach like...
This paper presents an innovative web-based control laboratory focused on the necessity of control education community. The usefulness of the remote laboratory proposed in this paper is justified by the opportunity of organizing the remote experiments, saving time and money for the students.
Omnipresent in many scientific disciplines nowadays is the notion of `system?? in the sense of a set of inter-acting, mutually influencing independent but adaptive actors with different roles and authorities in a dynamic, self-organising and self-regulating configuration. Business settings are compared to ecosystems. In computer science, the metaphor of a `swarm?? has been introduced. Any successful...
Digital Ecosystems is a neoteric terminology and there are two major definitions about it ?? respectively from Soluta.Net and from Digital Ecosystem and Business Intelligence Institute. In this paper, to solve the ambiguous problem in Digital Ecosystem??s definitions and to help researchers better understand what it is, by means of ontology, we propose a conceptual model to completely illustrate the...
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