Patent ID: 6087984
Filing Date: 2000-07-11
Classification: A01B,B64D,G01S,G05D

Abstract:
A GPS aircraft guidance system for use with circular cultivated agriculture fields, comprising:a GPS receiver adapted to determine a position of an aircraft, said GPS receiver adapted to store coordinates of a circular cultivated agricultural field, said GPS receiver adapted to determine a desired flight path for achieving a coverage of said circular cultivated agricultural field, said GPS receiver adapted to determine a deviation of said aircraft from said desired flight path, said GPS receiver further adapted to generate a dispense signal which indicates when to dispense agricultural chemicals from said aircraft; anda guidance indicator coupled to said GPS receiver, said guidance indicator adapted to indicate said deviation to a pilot of said aircraft to aid said pilot in maintaining said desired flight path and achieving said coverage;said GPS receiver adapted to determine said coordinates of said circular cultivated agricultural field by receiving a first signal from said pilot when said aircraft crosses an entry point of said circular cultivated agricultural field and receiving a second signal from said pilot when said aircraft crosses an exit point of said circular cultivated agricultural field, wherein said aircraft crosses a center pivot of said circular cultivated agricultural field.