Share Email Print

Proceedings Paper

Precision visual guidance for agricultural applicator aircraft
Author(s): Joseph R. Hartt; Frank R. Bletzacker; T. J. Forgette; Alan A. Vetter
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The in-cockpit swath centerline identifier (SCI) for aerial applicators uses differentially corrected global positioning system (GPS) signals to determine precise ground track of an aircraft and provide guidance to the pilot for flying patterns for aerial application of materials such as pesticides, herbicides, and fertilizers. Cross track distance from the swath centerline is provided by a heads up light bar display while detailed navigation, position, and status information is provided on an alphanumeric display on a panel mounted console. This system provides straight line guidance when executing a swath and turn-in guidance when proceeding from one swath to the next. It provides a record of the swaths which were sprayed and logs all of the associated navigation and operational data, including time. In addition, it provides navigation information from base to the fields, between fields, and return. The SCI eliminates the need for flaggers while providing improved accuracy of application. Reduced exposure to liability and improved quality control results as the position, altitude, time, and spray status are logged for post flight analysis. The SCI has been used in commercial agricultural applications. Demonstrations of the SCI showed better precision than anticipated.

Paper Details

Date Published: 1 July 1992
PDF: 4 pages
Proc. SPIE 1694, Sensors and Sensor Systems for Guidance and Navigation II, (1 July 1992); doi: 10.1117/12.138130
Show Author Affiliations
Joseph R. Hartt, SATLOC, Inc. (United States)
Frank R. Bletzacker, SATLOC, Inc. (United States)
T. J. Forgette, SATLOC, Inc. (United States)
Alan A. Vetter, SATLOC, Inc. (United States)

Published in SPIE Proceedings Vol. 1694:
Sensors and Sensor Systems for Guidance and Navigation II
Sharon S. Welch, Editor(s)

© SPIE. Terms of Use
Back to Top