23.03.2017 Views

wilamowski-b-m-irwin-j-d-industrial-communication-systems-2011

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Preambles<br />

xvii<br />

Group 1.2: Wireless<br />

Jürgen Jasperneite<br />

Institute Industrial IT<br />

Lemgo, Germany<br />

The integration of wireless technologies in <strong>industrial</strong> automation <strong>systems</strong> is the next step in the evolution<br />

of <strong>industrial</strong> networking. Wireless technologies have the potential to reduce the life-cycle costs of<br />

machines and plants as well as support future adaptive production concepts, either as an extension to,<br />

or as a replacement for, existing wired networks.<br />

In addition to wireless networking, new applications can be enabled such as wireless monitoring<br />

and control, or asset and personnel tracking. Most of the wireless technologies are standardized in the<br />

IEEE802 family and are driven by consumer market requirements. As a result, they are not designed<br />

to meet the automation-specific requirements such as low latencies or the demand for high service reliability.<br />

As a consequence, the basic concepts must be reviewed and sometimes revised. Therefore, it is in<br />

this group (Chapters 4 through 12) that the principles and architectures of wireless sensor networks are<br />

presented. Furthermore, some key functions of wireless networks, such as self-configuration, routing,<br />

energy efficiency, and data security are introduced.<br />

Group 1.3: Integration<br />

Thilo Sauter<br />

Institute for Integrated Sensor Systems<br />

Austrian Academy of Sciences<br />

Wiener Neustadt, Austria<br />

Industrial <strong>communication</strong> <strong>systems</strong>, and automation solutions in general, were initially developed<br />

primarily as islands. In recent years, however, the integration of automation <strong>systems</strong> into a wider<br />

scope has increased its importance and thus requires a technological basis. This group of chapters<br />

(Chapters 13 through 18) is therefore focused on selected integration aspects. The first chapter deals<br />

with vertical integration aimed at providing a transparent data exchange across all levels of the automation<br />

hierarchy, both from a networking and application point of view. A topic receiving increasing<br />

attention is the integration of multimedia technologies in automation, which requires the convergence<br />

of tele<strong>communication</strong>s and data services and poses new challenges for both network and application<br />

design. The issue of complex heterogeneous networks comprised of wired and wireless as well<br />

as automation and office domains is being addressed by the concept of virtual automation networks.<br />

Finally, software agent technology will be discussed as one way of achieving integration in automation<br />

<strong>systems</strong> by means of distributing functionalities among a group of autonomous, loosely coupled<br />

entities that may interact to accomplish a task that is difficult to solve in a centralized manner.<br />

Group 1.4: Quality of Service<br />

Friederich Kupzog<br />

Institute of Computer Technology<br />

Vienna University of Technology<br />

Vienna, Austria<br />

In many cases, special requirements have to be fulfilled in <strong>industrial</strong> <strong>communication</strong> <strong>systems</strong>. While<br />

requirements differ to some extent from those in the consumer products domain, the basic principles<br />

© <strong>2011</strong> by Taylor and Francis Group, LLC

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!