WO2011025592A1 - Multi-variable rate agricultural product application system, device and method - Google Patents
Multi-variable rate agricultural product application system, device and method Download PDFInfo
- Publication number
- WO2011025592A1 WO2011025592A1 PCT/US2010/041659 US2010041659W WO2011025592A1 WO 2011025592 A1 WO2011025592 A1 WO 2011025592A1 US 2010041659 W US2010041659 W US 2010041659W WO 2011025592 A1 WO2011025592 A1 WO 2011025592A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- agricultural product
- central controller
- row
- dispensation
- hydraulic motor
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/10—Devices for adjusting the seed-box ; Regulation of machines for depositing quantities at intervals
- A01C7/102—Regulating or controlling the seed rate
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/005—Precision agriculture
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/06—Seeders combined with fertilising apparatus
Definitions
- the invention relates to systems, devices and methods for controlling the rate of dispensation and/or application of an agricultural product across individual rows of a farm implement.
- Conventional agricultural planters and sprayers distribute agricultural products such as seed and/or liquid and/or granular fertilizer from storage containers, e.g., separate hoppers or storage container, through a metering device for delivery. Seed and fertilizer drop to the ground into a furrow creating rows.
- some conventional systems for seeding and fertilizing comprise using rotational power to drive a fan which creates a vacuum for trapping seeds on a perforated disk that is rotated through a mechanical apparatus, including gear reductions, so that the speed of the rotation of the perforated disk is coordinated with the forward speed of the prime mover or tractor
- Still other devices utilize a controller which controls a hydraulic motor which in turn drivingly rotates a single transverse shaft. See, e.g., Fig 2, which is discussed in further detail infra.
- This single transverse rotating shaft results in control of seed dispensation and fertilizer application as a function of forward speed, but the rates of dispensation and application are equivalent across all rows.
- Still other devices use a control mechanism which controls rates of dispensation and application for individual sections, i.e., the right or left side, of the multi-row agriculture implement independently, but does not allow individual row unit control. Thus, control of each half of the agricultural implement is possible with these devices, but finer control is not possible.
- Individual row clutches may be used to shut off individual rows and/or may be used in conjunction with variable rate drive motors. Such systems are, however driven by hydraulic motors and, as will be discussed further infra, are limited by the hydraulic capacity of modern tractors.
- the invention provides a system, device and method that can control the rates of seed dispensation and fertilizer application as a function of forward speed as well as across all rows.
- the system and control device allow control of each individual row unit, whereby dispensation and application are effected, by a central controller which controls a plurality of pulse width modulation valves, each of which controls a hydraulic motor with an integrated rpm reduction and which drives a stub drive shaft which rotates at the proper speed in order to provide the desired seed and fertilizer metering.
- Each of the stub drive shafts may rotate at completely different speeds and/or may be shut down while the remaining stub drive shafts rotate at the desired speed.
- the integrated rpm reduction within each hydraulic motor allows very fine rotational control of the dispensation and application rates.
- An object of the present invention is to provide a system, device and method for automatically controlling the dispensing of seeds and applying of fertilizer at accurate rates across all rows.
- Another object of the present invention is to provide a system, device and method for monitoring the forward speed of the individual row units and automatically controlling dispensing of seeds and applying of fertilizer therethrough at accurate rates across all rows.
- Another object of the present invention is to provide a system, device and method which uses computerized mapping and/or GPS monitored row unit positions in order to automatically control dispensing of seeds and applying of fertilizer therethrough at accurate rates across all rows.
- FIG. 1 is a top view of a conventional agricultural planter system
- FIG. 2 is a top partial cutaway of a conventional agricultural planter system
- FIG. 3 is a top partial cutaway of one embodiment of the present invention.
- FIG 4 is a schematic of one embodiment of the present invention.
- FIG. 1 illustrates one embodiment of a conventional planter.
- This known planter comprises a planter implement 10 which is urged forward by a prime mover 20, usually a tractor.
- the planter implement typically comprises a toolbar 30 upon which a plurality of row units 40 are mounted.
- the row units 40 may be grouped into two sections 50, which generally comprise a right and left side or the two halves of the row units 40.
- Seed may be stored within one or more seed storage containers 60 and, if fertilizer is used, it may be stored within a fertilizer container 70.
- the seed storage containers 60 and the fertilizer container 70 are in operative communication with the individual row units 40 via supply lines.
- FIG. 2 illustrates a cutaway of the known planter implement 10 of Figure 1 wherein individual row units 40 are mounted on the toolbar 30.
- a single hydraulic motor 80 is shown as driving all row units 40 by controlling the rotational speed of a common drive shaft 90.
- all row units 40 will experience the same rotational speed generated by the single hydraulic motor 80 and common drive shaft 90 and, therefore, all row units 40 will dispense seed and/or apply fertilizer at the same rate; there is no row-to-row compensation or change in dispensation or application rate.
- each row unit 40 of the present invention is driven by its own modular drive system comprising a hydraulic motor 100 which comprises an integrated rpm reducer therein.
- This integrated rpm reducer has a very significant effect and allows the use of hydraulic motor 100 on individual row units in a way not previously seen.
- the reduction of rpm's from the hydraulic motor 100 is necessary for several reasons. The first is that currently, hydraulic motors are used to drive a minimum of six rows, or a section, on current planters.
- present high end tractors having optional flow capacities that may reach as high as 78 gpm of hydraulic flow which serves up to 6 remote hydraulic valves.
- most modern tractors may have flow rates that are significantly lower, on the order of about 40 to 50 gpm of hydraulic flow capacity and which are typically used with planters having 4-5 remote hydraulic valves. Applicant is unaware of any current hydraulic motors used on planter drives having flow requirements that than 4 gpm.
- the integrated rpm reducer for hydraulic motor 100 of the present invention allows for less than 1 gpm of hydraulic flow which, in turn, allows hydraulic motors 100 to be connected with individual row units 40 while providing a very fine degree of control.
- each hydraulic motor 100 of the present invention provides a hydraulic flow of between about 0.5 gpm and about 1 gpm of hydraulic flow.
- the hydraulic motor 100 of the present invention provides a hydraulic flow that is magnitudes less than those currently used to control planters.
- each individual hydraulic motor 100 is operatively connected with and controlled by a central controller 110 and further comprises a rotating stub drive shaft 110 operatively connected to the output of the hydraulic motor 100.
- the rotational speed of the stub drive shaft 110 dictates the rates of seed
- FIG. 4 One embodiment of a system and device of the present invention is schematically illustrated in Figure 4.
- the control device and system shown receives the latitude and longitude coordinates of the planter implement 10 via a Global Navigation Satellite Systems (GPS) antenna 120 as is well known in the art.
- GPS Global Navigation Satellite Systems
- RTK Real Time Kinematic
- the field computer 140 accepts the corrected GPS information, ground speed obtained using ground speed sensors 145 as are well known in the art, user system settings and a computerized prescription map of the field as is also well known in the art in order to control the rate of seed dispensation and liquid fertilizer application.
- Field computer 140 produces a control signal 150 which is transferred to the central controller 110.
- the central controller then distributes the necessary commands to each of a plurality of row unit control mechanisms 160.
- Each row unit control mechanism 160 ultimately controls the seed
- row unit control mechanism 160 comprises a hydraulic motor control valve, preferably a pulse width modulation valve 180 which is in operative communication with the controller 110 and the hydraulic motor 100 with integrated rpm reducer 100.
- the controller 110 sends a rotational speed command to the pulse modulation width valve 180 which, in turn, modulates and regulates the valve's current and ultimately controls the rotational speed of hydraulic motor 100.
- a speed sensor 170 is operatively connected with the hydraulic motor 40 and communicates the rotational speed of the hydraulic motor's 40 to the controller 110. If multiple seed types are employed, controller 110 is also in operative
- a seed tube monitor 195 may be in operative communication with controller 110.
- Each individual row unit control mechanism 160 may further comprise a liquid control valve 200 which is in fluid communication with the fertilizer container 70 and with a flowmeter 210, the liquid control valve 200 and flowmeter 210 being in further operative communication with controller 110 to allow commands therefrom to either increase or decrease fluid flow.
- the present invention may be utilized to increase, decrease or shut off completely the rates of dispensation of seeds and/or granular fertilizer and/or application of liquid fertilizer for individual row units 40. This is significant in order to prevent overlap of dispensation or application as well adjusting individual row units dispensation or application rates depending on the field circumstances.
- a pre-programmed computerized map and/or RTK corrected GPS coordinates may be used to indicate certain regions of a field that are not to be seeded.
- the present invention functions to shut off the relevant row units.
- the agricultural implement's path takes one or more row units over a region of a field already seeded and fertilized, the present invention functions to shut off the relevant row units 40.
- the row unit 40 on the inner radius of the curve have a slower ground speed than the row unit 40 on the outer radius of the curve, while the row units 40 therebetween have increasingly faster ground speeds the closer their position to the outer radius of the curve.
- the present invention functions to individually decrease or increase rates of dispensation and/or application to each row unit 40 to accommodate such a curvilinear path.
- the use of GPS in combination with pre-programmed computerized mapping of a field allows customization of the dispensation and/or application of an agricultural product.
- the present invention achieves this customization through individual control of row units as described here.
- Each individual row unit 40 may comprise the following dispensation and/or application units as is well known in the art: seeding element, fertilizing element, spraying element, and/or chemical application element.
- seeding element seeding element
- fertilizing element fertilizing element
- spraying element spraying element
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fertilizing (AREA)
- Sowing (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080031364.6A CN102480913B (en) | 2009-08-28 | 2010-07-12 | Multi-variable rate agricultural product application system, device and method |
AU2010286885A AU2010286885B2 (en) | 2009-08-28 | 2010-07-12 | Multi-variable rate agricultural product application system, device and method |
BR112012004283A BR112012004283A2 (en) | 2009-08-28 | 2010-07-12 | multivariable rate agricultural product system, device and method of application |
EP10812458.7A EP2469999B1 (en) | 2009-08-28 | 2010-07-12 | Multi-variable rate agricultural product application system, device and method |
CA2767379A CA2767379C (en) | 2009-08-28 | 2010-07-12 | Multi-variable rate agricultural product application system, device and method |
ZA2012/02193A ZA201202193B (en) | 2009-08-28 | 2012-03-26 | Multi-variable rate agricultural product application system,device and method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23785109P | 2009-08-28 | 2009-08-28 | |
US61/237,851 | 2009-08-28 | ||
US12/815,956 | 2010-06-15 | ||
US12/815,956 US8868300B2 (en) | 2009-08-28 | 2010-06-15 | Multi-variable rate agricultural product application system, device and method |
Publications (1)
Publication Number | Publication Date |
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WO2011025592A1 true WO2011025592A1 (en) | 2011-03-03 |
Family
ID=43626074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/US2010/041659 WO2011025592A1 (en) | 2009-08-28 | 2010-07-12 | Multi-variable rate agricultural product application system, device and method |
Country Status (8)
Country | Link |
---|---|
US (1) | US8868300B2 (en) |
EP (1) | EP2469999B1 (en) |
CN (1) | CN102480913B (en) |
AU (1) | AU2010286885B2 (en) |
BR (1) | BR112012004283A2 (en) |
CA (1) | CA2767379C (en) |
WO (1) | WO2011025592A1 (en) |
ZA (1) | ZA201202193B (en) |
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Also Published As
Publication number | Publication date |
---|---|
CN102480913B (en) | 2015-01-07 |
AU2010286885B2 (en) | 2016-04-14 |
EP2469999A4 (en) | 2013-02-20 |
CN102480913A (en) | 2012-05-30 |
AU2010286885A1 (en) | 2012-01-19 |
EP2469999A1 (en) | 2012-07-04 |
CA2767379A1 (en) | 2011-03-03 |
CA2767379C (en) | 2016-03-15 |
ZA201202193B (en) | 2012-12-27 |
US8868300B2 (en) | 2014-10-21 |
US20110054743A1 (en) | 2011-03-03 |
BR112012004283A2 (en) | 2016-02-23 |
EP2469999B1 (en) | 2014-09-03 |
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