09.12.2012 Views

Development of a novel mechatronic system for mechanical weed ...

Development of a novel mechatronic system for mechanical weed ...

Development of a novel mechatronic system for mechanical weed ...

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.

Glossary <strong>of</strong> abbreviation and symbols<br />

Symbol Unit Description<br />

yre1<br />

zfr1<br />

zfront<br />

zmi1<br />

zre1<br />

zrear<br />

VI<br />

m<br />

m<br />

m<br />

m<br />

m<br />

Projection <strong>of</strong> the 1 section’s rear duckfoot knife position to yaxis<br />

Projection <strong>of</strong> the 1 section’s front duckfoot knife position to zaxis<br />

Projection <strong>of</strong> the distance between the duckfoot knife’s blade<br />

approaching the plant from the front side and the centre<br />

position <strong>of</strong> the plant to z-axis<br />

Projection <strong>of</strong> the 1 section’s middle duckfoot knife position to<br />

z-axis<br />

Projection <strong>of</strong> the 1 section’s rear duckfoot knife position to zaxis<br />

Projection <strong>of</strong> the distance between the duckfoot knife’s blade<br />

approaching the plant from the rear side and the centre<br />

position <strong>of</strong> the plant to z-axis<br />

z(t) m Absolute position <strong>of</strong> the plant detection unit<br />

zc(tL) m<br />

zc(tL-1) m<br />

Absolute coordinate <strong>of</strong> the last detected plant’s centre position<br />

in direction <strong>of</strong> travelling<br />

absolute coordinate <strong>of</strong> the last but one detected plant’s centre<br />

position in direction <strong>of</strong> traveling<br />

α rad s -2 Acceleration <strong>of</strong> the motor<br />

∆ ° Angle between <strong>for</strong>earms implemented on an arm holder<br />

Ε °<br />

Angle between the axis <strong>of</strong> symmetry <strong>of</strong> the duckfoot knife and<br />

the plane in which the arm holder is placed<br />

Φ rad Angular position <strong>of</strong> the hoeing tool<br />

φrecent rad Latest angular position <strong>of</strong> the hoeing tool<br />

η Coefficient <strong>of</strong> efficiency (gearbox)<br />

Θ °<br />

ωin<br />

ωnew<br />

Angle <strong>of</strong> the hoeing arms in relation to the plane<br />

perpendicular to the rotation axis in which the arm holder is<br />

placed<br />

rad s -2 Angular speed <strong>of</strong> the gearbox input shaft<br />

rad s -2 Newly calculated rotational speed <strong>of</strong> the hoeing tool

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

Saved successfully!

Ooh no, something went wrong!