| 摘要 |
The invention relates to an agricultural machine for spraying a phytosanitary liquid over cultivated land, said machine comprising means (10, 11) for moving the machine (1), a spray boom (2) having at least one arm (2a), a mechanism (3) for inclining the boom (2) and/or at least one of the arms (2a) in relation to a frame (12) of the machine (1) and vertically when the machine (1) is on a flat and horizontal surface (S), and a mechanism (30) for raising/lowering the boom (2) along an axis (Z1) fixed in relation to the frame of the machine (1). At least one of the arms (2a) is provided with at least one sensor (6), each sensor (6) measuring a distance (d) between the surface (S) of the land and said sensor (6) or, if necessary, between the crop and the sensor (6). The control unit (5) is connected to each sensor (6), provided with a memory (52) for storing information (d) provided by each sensor (6), and able to control the raising/lowering mechanism (30) according to information (d) stored in the memory (52). |
