29.09.2014 Views

Casestudie Breakdown prediction Contell PILOT - Transumo

Casestudie Breakdown prediction Contell PILOT - Transumo

Casestudie Breakdown prediction Contell PILOT - Transumo

SHOW MORE
SHOW LESS

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

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

store this kind of data but only offer basic visualization possibilities and sometimes<br />

basic statistical summarizations. Moreover, systems like that currently only allow data<br />

analysis by hand.<br />

This leads to a high amount of stored historical data with currently very few use. The<br />

main idea is now to test statistical and data mining methods on applicability to<br />

improve the current situation of rare information. Especially reliable answers on the<br />

given criteria from the beginning of chapter 2 would offer great decision support, as<br />

pictured in Figure 2-10.<br />

Figure 2-10: Estimated Answers of Statistics and Data Mining<br />

One hundred percent reliable answers to the questions on the right would allow a<br />

perfect classification of cooling devices as OK or malfunctioning. But even if the<br />

answers could only be given with a lower reliability, a possible knowledge gain could<br />

at least support the decision of the current technical condition and put it on a larger<br />

basis than just the current temperature.<br />

Beside these four criteria, section 2.1 identified another two important requirements.<br />

Since the stored samples are normally high valued and easy to destroy, a monitoring<br />

approach has to be able to identify failures as soon as they are recognizable.<br />

Because an early detection leads to additional time to save stored samples to other<br />

fridges. Moreover, it must be possible to avoid an error of second kind in any case.<br />

17

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

Saved successfully!

Ooh no, something went wrong!