Application of Cyclical Buffer Technique in Real-Time Virtual Instrumentation

Piotr Bilski, Wiesław Winiecki
Abstract:
The paper presents an approach to Real-Time virtual instrument design. It uses cyclical buffer technique to obtain an instrument working in Real-Time mode using general purpose operating system and basic data acquisition card. Advantages and drawbacks of the approach in comparison to hardware Real-Time solutions are presented. Software architecture of the cyclical buffer solution is discussed in detail. Dependency between the cyclical buffer fill ratio and convergence function is presented. Experiments conducted in order to determine abilities of the cyclical buffer are described. Three main buffer states, influencing the ability of the instrument to work in RT mode are presented.
Download:
IMEKO-TC4-2005-094.pdf
DOI:
-
Event details
IMEKO TC:
TC4
Event name:
TC4 Workshop 2005
Title:

10th IMEKO TC4 International Workshop on ADC Modelling and Testing - IWADC (together with XIVth IMEKO TC4 International Symposium on New Technologies in Measurement and Instrumentation)

Place:
Gdynia/Jurata, POLAND
Time:
12 September 2005 - 15 September 2005