Automated Guidance Control for Agricultural Tractor Using Redundant Sensors

Paper #:
  • 1999-01-1874

Published:
  • 1999-04-14
Citation:
Zhang, Q., Reid, J., and Noguchi, N., "Automated Guidance Control for Agricultural Tractor Using Redundant Sensors," SAE Technical Paper 1999-01-1874, 1999, https://doi.org/10.4271/1999-01-1874.
Pages:
7
Abstract:
The development of automated guidance for agricultural tractors has addressed several basic and applied issues of agricultural equipment automation. Basic analyses have included the dynamics of steering systems and posture sensors for guidance. Applied issues have evaluated the potential of several commercial sensing systems and a commercial mechanical guidance system. A research platform has been developed based on a Case 7220 Magnum1 2-wheel drive agricultural tractor. An electrohydraulic steering system was used and characterized in support of automated guidance control. Posture sensing methods were developed using GPS, geomagnetic direction sensors (GDS), inertial, and machine vision sensing systems. Sensor fusion of GPS-inertial-machine vision and GPS-GDS-machine vision provided the most flexible and accurate guidance and capable for operation under dynamically changing field conditions.
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