초록 ▼

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 rad

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.

대표청구항 ▼

Apparatus for detecting obstacles in the path of a work vehicle upon which said apparatus is mounted comprising: transducer means for producing radiant energy having a central axis of propagation, receiving reflected produced radiant energy, and controllably producing an obstacle detected signal in

Apparatus for detecting obstacles in the path of a work vehicle upon which said apparatus is mounted comprising: transducer means for producing radiant energy having a central axis of propagation, receiving reflected produced radiant energy, and controllably producing an obstacle detected signal in response to receiving said reflected produced radiant energy; rotatable reflector means for controllably projecting said produced radiant energy radially outwardly from said work vehicle and receiving said reflected produced radiant energy along substantially the same path, said rotatable reflector means including a central axis of rotation and an optical reflector member rotatably disposed along said axis of rotation; encoder means for controllably producing an enable signal in response to said optical reflector member being rotatably positioned at any one of a plurality of predetermined rotational positions about said axis of rotation; and zone control logic means for receiving said obstacle detected signal and said enable signal and producing a vehicle control signal only in response to the simultaneous presence of said enable signal and said obstacle detected signal.