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Redundancy approach to increase the availability and reliability of radio communication in industrial automation

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3 Author(s)
Beikirch, H. ; Dept. of Comput. Sci. & Electr. Eng., Univ. of Rostock, Rostock, Germany ; Voss, M. ; Fink, A.

By the use of radio communication in industrial environments the influence of multi-path propagation is a fundamental problem especially for safety-related applications. The prevailing locally variation of field strength is hardly predictable and continuously changing. A conception with a wireless redundant data transmission was developed as an approach to reduce the problematic influences. A lot of preliminary investigations in real test environments with different ISM-Radio bands are necessary for this concept. A combination of space and frequency diversity was indicated as a most suitable solution. With this multiple radio channel concept a remarkable improvement of the availability of the radio link can be achieved.

Published in:

Emerging Technologies & Factory Automation, 2009. ETFA 2009. IEEE Conference on

Date of Conference:

22-25 Sept. 2009