FIELD: determination of position of boundary of treatment of edge of agricultural crops.
SUBSTANCE: signal of proposed locator is transmitted as adjustable magnitude to electrically controlled steering gear of agricultural machine; first locator consists of transmitter and receiver and its zone of reflection lies mainly in uncultivated harvest field; second locator has second transmitter and second receiver and its zones of reflection are directed to edge of treatment on both sides at overlap. Reflection zones are partially overlapped; both transmitters are controlled simultaneously in pulse mode and both receivers receive signals from both transmitters which are reflected from uncultivated field.
EFFECT: smooth control of motion at varying characteristics of reflection of uncultivated field.
14 cl, 4 dwg
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