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Workshop 4 – Measurements on the Physical Layer of the KNX-bus (Group 2)

September 3 @ 9:00 - 12:30 CEST

Docent:

Andreas Zdziarstek

Content:

For these workshops we will perform practical measurements on a multi-device
test setup of a KNX network and have a look on how exactly data is encoded and
transmitted on the electrical level.
Going further, we will try to detect unknown devices as well as changes in the bus’
physical topology. To do this, we will use a USB oscilloscope to capture
waveforms being transmitted on the bus and then perform signal analysis using
Matlab/Octave or similar tools/libraries.

Preparation:

  • Listening to the talk “The Physical Layer in Field Bus Systems” is recommended while not strictly necessary, some knowledge of signal analysis may be beneficial:
  1. (cross-) correlation: http://paulbourke.net/miscellaneous/correlate/
  2. knowing what a Fourier transform is: https://www.mathworks.com/help/matlab/ref/fft.html

Details

Date:
September 3
Time:
9:00 - 12:30 CEST

Host

Andreas Zdziarstek
Affiliation:
Researcher, University of Rostock
Email:
andreas.zdziarstek@uni-rostock.de
Website:
https://iuk.uni-rostock.de/mitarbeiter/zdziarstek/