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Combine setting autoadjust with machine vision
| Details |
Inventors: Hale, George H.;
Assignee: Case Corporation (Racine, WI)
Primary Examiner: Pezzuto; Robert E.
Assistant Examiner:
Attorney, Agent or Firm: Foley & Lardner
A combine for processing crop materials includes a frame, a main body, ground support devices, a device for propelling the combine at a ground speed, an operator's station, a header including a reel rotatable at a reel speed, a feeder portion including a conveyor movable at a feeder speed, a threshing portion including a rotor rotatable at a rotor speed, a grain cleaning portion including a cleaning air fan rotatable at a cleaning air fan speed with adjustable outlet restrictions, and chaffer and grain sieves. An instrument and control system, which includes a data processing unit (DPU), a memory apparatus, an input device, an actuator, and a machine vision apparatus, monitors processing of crop materials and automatically adjusts combine settings in response thereto. A method of controlling the operations of a combine includes (a) viewing crop materials with a machine vision apparatus, (b) generating an image signal corresponding to an image of the crop materials, (c) transmitting the image signal to a DPU, (d) comparing the image signal to a setpoint within the DPU and generating an output signal corresponding to the difference therebetween, and (e) transmitting the output signal to an actuator configured to change a combine setting. |
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DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS FIG.
1 shows an agricultural combine harvester depicted as a self-propelled combine 102.
Alternatively, the term "combine" is also to be construed as applying to a combine configured as an implement adapted to be connected to, pulled by, guided (i.
e.
, steered) and powered by another work vehicle such as a tractor.
Combine 102 is configured as an agricultural work vehicle having a frame 104, a main body 106 with a grain tank 124 installed on frame 104, an engine or other prime mover (not shown) mounted on frame 104, front ground support devices (e.
g.
, drive wheels 108 connected to the engine for moving combine 102 at a particular and controllable ground speed across the surface of an agricultural field or a road), rear ground support devices (e.
g.
, steerable wheels 110 which may also be connected to the engine for additional traction), and an operator's station 126.
Combine 102 is further configured to harvest a crop growing upon a field using a crop reaping apparatus such as a header 114 having a particular width to harvest crop in a swath of a substantially similar width.
Header 114 severs (e.
g.
, cuts or snaps) plants located within the swath as combine 102 moves across the field, and conveys the plants, or crop material, to a central region of the header.
Header 114 is generally configured to reap a particular type crop, and thus is easily removed from and attached to frame 104 and main body 106 such that combine 102 may be used to harvest a different type of crop by substitution of an appropriate header therefore.
Header 114 includes a movable member, shown as a rotatable reel 115, for severing and gathering crop materials.
The rotational speed of reel 115 is typically maintained in approximate correspondence with ground speed of combine 102 since the ground speed determines the rate at which crop is encountered and therefore the rate of crop harvesting.
Combine 102 is configured to lower header 114 to an operating position for engaging crop and to raise header 114 to a transport position during transport
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