GNSS based control for dispensing material from vehicle
First Claim
1. A spray control method for controlling spraying of a material on a spray zone of a field also including an exclusion zone which is not to receive said material, said spray zone being separated from said exclusion zone by a spray turn-on boundary when passing from said exclusion zone to said spray zone and by a spray turn-off boundary when passing from said spray zone to said exclusion zone;
- said method employing a spray vehicle including a material tank, a pump communicating with said tank, and a nozzle communicating with said pump, said pump when activated causing said material to be sprayed from said nozzle to a spray range from said nozzle and requiring a turn-on lag time between activation of said pump and said material reaching said spray range and a turn-off lag time between deactivation of said pump and cessation of said material being sprayed from said nozzle, said vehicle having a GNSS receiver mounted thereon at an offset distance from said nozzle and outputting position data representing a position of said receiver, said receiver being interfaced to a controller which is interfaced to said pump, said controller selectively activating said pump and having data representing said turn-on boundary and said turn-off boundary stored therein, and said method comprising the steps of;
(a) moving said vehicle in said exclusion zone toward said turn-on boundary at a vehicle velocity;
(b) communicating position data from said receiver to said controller to track the position of said receiver;
(c) activating said pump by said controller when said receiver detects a position of said receiver within said spray zone at a spray turn-on distance beyond said turn-on boundary equal to the sum of said offset distance plus said spray range minus the product of said vehicle velocity times said turn-on lag time;
(d) moving said vehicle in said spray zone toward said turn-off boundary; and
(e) deactivating said pump by said controller when said receiver detects a position of said receiver within said exclusion zone at a spray turn-off distance beyond said turn-off boundary equal to said offset distance minus the product of said vehicle velocity times said turn-off lag time.
2 Assignments
0 Petitions
Accused Products
Abstract
A spray control method employs a spray vehicle including a material tank, a pump communicating with the tank, and nozzles of a spray boom communicating with the pump. A GNSS receiver mounted on the vehicle and interfaced to a controller tracks its position in relation to stored position coordinates of field boundaries separating spray zones from spray exclusion zones. The tank is activated and deactivated by the controller to retain spray of the material within the spray zones and to prevent spray of the material in the exclusion zones, by processing an offset of the spray nozzles from the receiver, the spray range of the nozzles, spray turn-on and turn-off lag times, and the velocity of the spray vehicle, all in relation to the field boundaries. An alternative embodiment individually controls spray from the nozzles by using associated valves interfaced to the controller.
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Citations
16 Claims
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1. A spray control method for controlling spraying of a material on a spray zone of a field also including an exclusion zone which is not to receive said material, said spray zone being separated from said exclusion zone by a spray turn-on boundary when passing from said exclusion zone to said spray zone and by a spray turn-off boundary when passing from said spray zone to said exclusion zone;
- said method employing a spray vehicle including a material tank, a pump communicating with said tank, and a nozzle communicating with said pump, said pump when activated causing said material to be sprayed from said nozzle to a spray range from said nozzle and requiring a turn-on lag time between activation of said pump and said material reaching said spray range and a turn-off lag time between deactivation of said pump and cessation of said material being sprayed from said nozzle, said vehicle having a GNSS receiver mounted thereon at an offset distance from said nozzle and outputting position data representing a position of said receiver, said receiver being interfaced to a controller which is interfaced to said pump, said controller selectively activating said pump and having data representing said turn-on boundary and said turn-off boundary stored therein, and said method comprising the steps of;
(a) moving said vehicle in said exclusion zone toward said turn-on boundary at a vehicle velocity; (b) communicating position data from said receiver to said controller to track the position of said receiver; (c) activating said pump by said controller when said receiver detects a position of said receiver within said spray zone at a spray turn-on distance beyond said turn-on boundary equal to the sum of said offset distance plus said spray range minus the product of said vehicle velocity times said turn-on lag time; (d) moving said vehicle in said spray zone toward said turn-off boundary; and (e) deactivating said pump by said controller when said receiver detects a position of said receiver within said exclusion zone at a spray turn-off distance beyond said turn-off boundary equal to said offset distance minus the product of said vehicle velocity times said turn-off lag time. - View Dependent Claims (2, 3, 4)
- said method employing a spray vehicle including a material tank, a pump communicating with said tank, and a nozzle communicating with said pump, said pump when activated causing said material to be sprayed from said nozzle to a spray range from said nozzle and requiring a turn-on lag time between activation of said pump and said material reaching said spray range and a turn-off lag time between deactivation of said pump and cessation of said material being sprayed from said nozzle, said vehicle having a GNSS receiver mounted thereon at an offset distance from said nozzle and outputting position data representing a position of said receiver, said receiver being interfaced to a controller which is interfaced to said pump, said controller selectively activating said pump and having data representing said turn-on boundary and said turn-off boundary stored therein, and said method comprising the steps of;
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5. A spray control method for controlling spraying of a material on a spray zone of a field also including an exclusion zone which is not to receive said material;
- said method employing a spray vehicle including a material tank storing said material, a pump communicating with said tank, a GNSS receiver outputting position data representing a position thereof, and a controller interfaced between said receiver and said pump, said controller selectively activating said pump and having data representing boundaries of said spray zone relative to said exclusion zone stored therein, and said method comprising the steps of;
(a) moving said vehicle in said exclusion zone toward said spray zone; (b) communicating position data from said receiver to said controller to track the position of said receiver; (c) activating said pump by said controller when said receiver detects a position of said receiver within said spray zone at which spray of said material is retained within said spray zone; (d) moving said vehicle in said spray zone toward said exclusion zone; (e) deactivating said pump by said controller when said receiver detects a position of said receiver within said exclusion zone at which spray of said material within said exclusion zone is prevented; (f) separating said spray zone from said exclusion zone by a spray turn-on boundary when passing from said exclusion zone to said spray zone; (g) activating said pump causing said material to spray to a spray range from a nozzle communicating with said pump and positioned at an offset distance from said receiver, a turn-on lag time being required between activation of said pump and said material reaching said spray range; (h) moving said vehicle toward said turn-on boundary at a vehicle velocity; and (i) activating said pump by said controller when said receiver detects a position of said receiver within said spray zone beyond said turn-on boundary equal to the sum of said offset distance plus said spray range minus the product of said vehicle velocity times said turn-on lag time. - View Dependent Claims (6, 7, 8, 9, 10)
- said method employing a spray vehicle including a material tank storing said material, a pump communicating with said tank, a GNSS receiver outputting position data representing a position thereof, and a controller interfaced between said receiver and said pump, said controller selectively activating said pump and having data representing boundaries of said spray zone relative to said exclusion zone stored therein, and said method comprising the steps of;
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11. A spray control method for controlling spraying of a material on a spray zone of a field also including an exclusion zone which is not to receive said material;
- said method employing a spray vehicle including a material tank storing said material, a pump communicating with said tank, a GNSS receiver outputting position data representing a position thereof, and a controller interfaced between said receiver and said pump, said controller selectively activating said pump and having data representing boundaries of said spray zone relative to said exclusion zone stored therein, and said method comprising the steps of;
(a) moving said vehicle in said exclusion zone toward said spray zone; (b) communicating position data from said receiver to said controller to track the position of said receiver; (c) activating said pump by said controller when said receiver detects a position of said receiver within said spray zone at which spray of said material is retained within said spray zone; (d) moving said vehicle in said spray zone toward said exclusion zone; (e) deactivating said pump by said controller when said receiver detects a position of said receiver within said exclusion zone at which spray of said material within said exclusion zone is prevented; (f) separating said spray zone from said exclusion zone by a spray turn-off boundary when passing from said spray zone to said exclusion zone; (g) said vehicle including a nozzle positioned an offset distance from said receiver and communicating with said pump; (h) a turn-off lag time elapsing between deactivation of said pump and cessation of material being sprayed from said nozzle; (i) moving said vehicle in said spray zone toward said turn-off boundary at a vehicle velocity; and (j) deactivating said pump by said controller when said receiver detects a position of said receiver within said exclusion zone beyond said turn-off boundary equal to said offset distance minus the product of said vehicle velocity times said turn-off lag time.
- said method employing a spray vehicle including a material tank storing said material, a pump communicating with said tank, a GNSS receiver outputting position data representing a position thereof, and a controller interfaced between said receiver and said pump, said controller selectively activating said pump and having data representing boundaries of said spray zone relative to said exclusion zone stored therein, and said method comprising the steps of;
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12. A spray control method for controlling spraying of a material on a spray zone of a field also including an exclusion zone which is not to receive said material, said spray zone being separated from said exclusion zone by a spray turn-on boundary when passing from said exclusion zone to said spray zone and by a spray turn-off boundary when passing from said spray zone to said exclusion zone;
- said method employing a spray vehicle including a material tank storing said material, a pump communicating with said tank, a GNSS receiver outputting position data representing a position thereof, and a controller interfaced between said receiver and said pump, said controller selectively activating said pump and having data representing said turn-on boundary and said turn-off boundary stored therein, and said method comprising the steps of;
(a) moving said vehicle in said exclusion zone toward said turn-on boundary; (b) communicating position data from said receiver to said controller to track the position of said receiver; (c) activating said pump by said controller when said receiver detects a position of said receiver within said spray zone beyond said turn-on boundary at which spray of said material is retained within said spray zone; (d) moving said vehicle in said spray zone toward said turn-off boundary; (e) deactivating said pump by said controller when said receiver detects a position of said receiver within said exclusion zone beyond said turn-off boundary at which spray of said material within said exclusion zone is prevented; (f) said vehicle including a nozzle positioned an offset distance from said receiver and communicating with said pump; (g) a turn-off lag time elapsing between deactivation of said pump and cessation of material being sprayed from said nozzle; (h) moving said vehicle in said spray zone toward said turn-off boundary at a vehicle velocity; and (i) deactivating said pump by said controller when said receiver detects a position of said receiver within said exclusion zone beyond said turn-off boundary equal to said offset distance minus the product of said vehicle velocity times said turn-off lag time. - View Dependent Claims (13, 14, 15, 16)
- said method employing a spray vehicle including a material tank storing said material, a pump communicating with said tank, a GNSS receiver outputting position data representing a position thereof, and a controller interfaced between said receiver and said pump, said controller selectively activating said pump and having data representing said turn-on boundary and said turn-off boundary stored therein, and said method comprising the steps of;
Specification