Importance

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Abstract

An apparatus for detecting obstacles in the path of a work vehicle, in which a transducer produces radiant energy, receives radiant energy reflected from an obstacle and produces an obstacle detected signal in response to receiving the reflected radiant energy. A rotatable reflector projects the radiant energy produced by the transducer radially outwardly from the work vehicle and directs the reflected radiant energy back to the transducer. An encoder produces an enable signal in response to predetermined positions of the rotatable reflector and is located along the same axis of rotation as the optical reflector. Zone control logic receives the obstacle detected signal and the enable signal and produces a vehicle control signal if both signals are present.

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First Claim