WURking: a small sized autonomous robot for the Farm of the Future

E.J. van Henten; C.J. van Asselt; T. Bakker; S.K. Blaauw; M.H.A.M. Govers; J.W. Hofstee; R.M.C. Jansen; A.T. Nieuwenhuizen; S.L. Speetjens; J.D. Stigter; G. van Straten; L.G. Van Willigenburg

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WURking: a small sized autonomous robot for the Farm of the Future

in Precision agriculture '09

Autor:innen:

E.J. van Henten

E.J. van Henten
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C.J. van Asselt

C.J. van Asselt
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T. Bakker

T. Bakker
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S.K. Blaauw

S.K. Blaauw
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M.H.A.M. Govers

M.H.A.M. Govers
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J.W. Hofstee

J.W. Hofstee
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R.M.C. Jansen

R.M.C. Jansen
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A.T. Nieuwenhuizen

A.T. Nieuwenhuizen
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S.L. Speetjens

S.L. Speetjens
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J.D. Stigter

J.D. Stigter
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G. van Straten

G. van Straten
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L.G. Van Willigenburg

L.G. Van Willigenburg
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Art:: Kapitel

Seiten:: 833–840

DOI:: https://doi.org/10.1163/9789086866649_100

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Abstract

Autonomous robots for agricultural practices will become reality soon. These mobile robots could take over regular tasks such as scouting for weeds and diseases, plant specific applications, yield and field mapping and for instance the release of info-chemicals for attracting predators of pests. This paper presents WURking, a small sized sub-canopy autonomous robot that can be used for a wide range of tasks on the farm of the future. WURking was designed for navigating within row crops like corn. It consists of a mobile platform with three independently driven steerable wheels. The robot carries ultrasound sensors and a gyroscope used for navigation between the crop rows, end of row detection and headland turning. A camera is mounted to detect objects like weeds. High level control of this robot was implemented using the visual programming language Lab View. A data fusion technique is used to extract the position and orientation of the robot relative to the crop rows, from the redundant set of sensor data. Feedback linearization of the non-linear system dynamics yielded a simple linear controller structure which was fed by state estimates generated by a Kalman filter using the raw ultrasound sensor data. The headland turning was based on a proportional controller using data from the gyroscope. This paper contains a description of the robot as well as results of a performance test performed in 2008. This test revealed that the robot was able to navigate through the corn field with a maximum offset of ±10 cm from the centre of the rows and an maximum orientation error of ±0.15 rad.

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Precision agriculture '09

ISBN:: 9789086866649

Verleger:: Wageningen Academic

Print-Publikationsdatum:: 01 Jan 2009

Fachgebiete
- Biowissenschaften
  - Allgemein
  - Landwirtschaft und Umwelt

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WURking: a small sized autonomous robot for the Farm of the Future

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Precision agriculture '09

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