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

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Glossary of abbreviation and symbols Symbol Unit Description yre1 zfr1 zfront zmi1 zre1 zrear VI m m m m m Projection of the 1 section’s rear duckfoot knife position to yaxis Projection of the 1 section’s front duckfoot knife position to zaxis Projection of the distance between the duckfoot knife’s blade approaching the plant from the front side and the centre position of the plant to z-axis Projection of the 1 section’s middle duckfoot knife position to z-axis Projection of the 1 section’s rear duckfoot knife position to zaxis Projection of the distance between the duckfoot knife’s blade approaching the plant from the rear side and the centre position of the plant to z-axis z(t) m Absolute position of the plant detection unit zc(tL) m zc(tL-1) m Absolute coordinate of the last detected plant’s centre position in direction of travelling absolute coordinate of the last but one detected plant’s centre position in direction of traveling α rad s -2 Acceleration of the motor ∆ ° Angle between forearms implemented on an arm holder Ε ° Angle between the axis of symmetry of the duckfoot knife and the plane in which the arm holder is placed Φ rad Angular position of the hoeing tool φrecent rad Latest angular position of the hoeing tool η Coefficient of efficiency (gearbox) Θ ° ωin ωnew Angle of the hoeing arms in relation to the plane perpendicular to the rotation axis in which the arm holder is placed rad s -2 Angular speed of the gearbox input shaft rad s -2 Newly calculated rotational speed of the hoeing tool
ωold ωout rad s -2 Latest rotational speed of the hoeing tool rad s -2 Angular speed of the gearbox output shaft Glossary of abbreviations and symbols VII
Page 1 and 2: Institut für Landtechnik der Rhein
Page 3 and 4: Development of a novel mechatronic
Page 5 and 6: Kurzfassung Entwicklung eines neuar
Page 7 and 8: Acknowledgements Acknowledgements M
Page 9 and 10: Table of contents Table of contents
Page 11 and 12: Glossary of abbreviations and symbo
Page 13 and 14: Symbol Unit Description Mmmax Nm Ma
Page 15: Symbol Unit Description Glossary of
Page 20 and 21: Introduction The most frequently us
Page 22 and 23: Introduction application that had p
Page 24 and 25: Introduction be to go from a system
Page 26 and 27: Introduction limited and environmen
Page 28 and 29: Introduction than 40 years before g
Page 30 and 31: Introduction techniques. It is know
Page 32 and 33: Introduction Sowing and planting al
Page 34 and 35: Introduction Inter-row weeding syst
Page 36 and 37: Introduction 18 Figure 1.3 Inter-ro
Page 38 and 39: State of the art 20 Figure 2.1 a) F
Page 40 and 41: State of the art cylinder rotates a
Page 42 and 43: State of the art 1998). This device
Page 44 and 45: State of the art 26 2.2 Detection o
Page 46 and 47: State of the art The fluorescence s
Page 48 and 49: Definition of the problem and resea
Page 51 and 52: 4 Materials and methods 4.1 Detecti
Page 53 and 54: Materials and methods Figure 4.1 a)
Page 55 and 56: Materials and methods Figure 4.3 a)
Page 57 and 58: 4.1.2 Data acquisition 4.1.2.1 Hard
Page 59 and 60: 4.1.4 Test objects Materials and me
Page 61 and 62: Materials and methods become a poss
Page 63 and 64: Materials and methods environments
Page 65 and 66: Materials and methods dimensions ne
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Materials and methods (PFM). As the
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Materials and methods A command sig
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Materials and methods The drive con
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Materials and methods Another tool
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Results and discussion 58 Figure 5.
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Results and discussion objects. Acc
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Results and discussion Plant positi
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Results and discussion Plant positi
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Results and discussion 70 5.1.4 Dis
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Results and discussion Connection b
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Results and discussion 76 5.2.1 Opt
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Results and discussion xmi1 = ( RLA
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Results and discussion With the inv
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Results and discussion 82 Horizonta
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Results and discussion 84 5.2.4 Sel
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Results and discussion 86 5.2.5 Dis
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Results and discussion Conventional
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Results and discussion Since the fi
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Results and discussion To avoid con
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Results and discussion As the size
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Results and discussion 96 5.3.4 Alg
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Results and discussion 98 V = zc( t
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Results and discussion corresponds
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Results and discussion 102 5.3.6 Me
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Results and discussion hoeing accur
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Results and discussion between the
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Results and discussion distance fro
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Results and discussion Distribution
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Results and discussion cuts are ran
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Results and discussion Forward spee
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Results and discussion x [mm] Distr
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Results and discussion The experime
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6 Summary Summary Neither a mechani
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Summary The third part of the work
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7 Conclusions Conclusions The prese
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8 References References Agrios, G.
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References in California's Sacramen
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References Johnson, W C and Mullini
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References Schans, D. v. d. et al.
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List of figures List of figures Fig
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List of figures Figure 5.24 Scheme
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Plant position 9 Appendix Table 9.1
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Plant position Table 9.3 Detection
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Personal data Education About the a
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