15. • Only works on perpendicular angles (+/-15°)
• Only works on „flat“ surfaces (hair or clothes = bad)
• You can hear it when it is quiet
BUT…
30.03.2017 < OMM Solutions GmbH > 15
20. • Cost more than the other sensors
• Inaccurate/slow > 2m
• Might not work very well in direct sunlight (did not test)
Any Drawbacks?
30.03.2017 < OMM Solutions GmbH > 20
21. • Collected data from different people
• Prepate the data
• Implement an AI to classify the data
Now what?
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25. • Throw in the raw data (~200 pullups)
• Train it
• See what happens
• => accuracy ~60%
With Tensorflow
AI Iteration #1
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26. • More data (a lot more!)
• Adjust the network (not really better)
• Use meta-data instead of raw data
How can we improve this?
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27. • Using ~15 different meta-data-points
• => accuracy ~85%
AI Iteration #2
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28. • Normalize data (high values are bad!)
• …and more data!
…but there‘s still room for improvements
It‘s Okay…
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29. • Normalized data
• => accuracy at +90%
AI Iteration #3
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31. • Data preparation is probably the most important step
• Visualizing the data helps analyzing it
• Less data can be compensated by transforming the data first
• Having more classes can help with the accuracy of the whole model
• More data is always better
Learnings
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32. Vielen Dank für Eure Aufmerksamkeit!
32< OMM Solutions GmbH >
33. Ihr persönlicher Ansprechpartner
Fragen oder Interesse?
< OMM Solutions GmbH > 33
Olaf Horstmann
Technology & Innovation
OMM Solutions GmbH
Vor dem Lauch 4
70567 Stuttgart
Germany
oh@omm-solutions.de
+49 (0)711 75 86 46 04
34. 34< OMM Solutions GmbH >
www.omm-solutions.de
OMM Solutions GmbH
Vor dem Lauch 4
70567 Stuttgart
Geschäftsführer
Martin Allmendinger
Malte Horstmann
Olaf Horstmann
Kontakt
Telefon: +49 711 6747 051-0
E-Mail: info@omm-solutions.de
Umsatzsteuer-ID: DE295716572
Sitz der Gesellschaft: Stuttgart
Amtsgericht Stuttgart, HRB 749562
Impressum