♪♪
Abby: Agriculture in Iowa is about families,
hard work, tradition and machines, huge machines,
like awesome combines with tools and gadgets on the
cutting edge of technology, like global
positioning systems or GPS so it can drive itself,
cameras for watching the corn go into the grain tank,
touchscreens and monitors that measure and tell the
farmer exactly how much corn is harvested in that
exact location and so much more.
♪♪
Abby: This is my friend Candi and she is a
farmer right in the middle of harvest but taking a
quick break to show us how awesome her combine is.
Candi, tell us about your equipment and your farm.
Candi: So, we run a lot of John Deere equipment and
today, we're out here harvesting corn.
We have a new S780 John Deere combine and it has
got a lot of really interesting technology on
it.
Abby: So cool, let's go check it out.
♪♪
Candi: So the first thing that is on it
that is really interesting is the GPS receiver, the
yellow globe on the front.
Abby: What does that do?
Candi: It allows us to know where we're at within
an inch in the field.
So it helps us to drive the machine automatically
and it also helps us to have the grain cart drive
right next to me and stay beside me while we're
unloading grain.
It has the guidance system in it and it will drive
right down the rows for me.
Candi: So we also have header height sensing on
this machine.
Abby: And this is the header right here on the
front, right?
Candi: Yeah, this is the head.
It's where the corn feeds into the machine to be
processed.
And on the front there are sensors that feel the
ground and as the ground touches these it
automatically moves the head up and down so it can
follow the contours of a rolly field like this one.
Abby: That makes sense.
Ground is never just flat.
Candi: Very rarely.
So there's basically five big things that the
combine does.
The first is the head, it brings the corn into the
machine.
Then it comes up into the separator.
That grinds it up and separates the corn kernels
from the rest of the plant material.
Abby: That makes sense because you really just
want that kernel, right?
The rest of it you don't really need.
Candi: Exactly, that's what a combine, how it got
its name.
It combines threshing the crop, separating it and
then storing it up in the grain tank.
Abby: I never knew that.
Candi: So then it goes up into the cleaning shoe and
that is going to shake the heavy grain falls to the
bottom and the light chaff and corn cobs go to the
back of the machine.
Abby: More of that stuff that you just don't want.
Candi: Exactly.
Abby: Just getting it really nice and clean.
Candi: And then the clean grain goes up into the
large hopper at the top, the clean grain tank.
And then the last thing is the stuff we don't want
heads back through the chopping system and gets
chopped up so that it's nice little pieces that
can break down over winter and go back into the soil.
And it also helps protect from erosion over the
winter and really puts a mat on top of the soil for
us.
Abby: Oh, that's perfect.
There's a lot of really cool things and tools and
important parts on the outside of this combine.
But I know the cutting edge technology is really
on the inside.
So tell me what's going on in there.
Candi: So there is a full computer in there that is
helping monitor how the machine is performing and
providing me lots of information so I can help
make adjustments.
Abby: Like what?
Candi: So I can adjust how the cleaning system is
working, I can adjust the speed that I'm going,
there's lots of different options that can help make
the machine work better.
The sensors really do help.
They let you know how it's doing from the grain
quality to how much grain is coming out the back of
the machine.
We want to make sure we get it all in the grain
tank.
♪♪
Candi: You can see in here how we set up the
guidance and that is what allows it to guide it down
each row.
Abby: Like a driver kind of?
Candi: Yeah, exactly.
And once I get it started into the corn rows it
actually follows the rows for me.
So if they curve or move, it moves them with me.
Abby: And that is with GPS?
Candi: Yeah, it's using GPS but it's a combination
with row feelers.
So when that row moves it can follow that.
So it's using both together to make sure it
does the best job possible.
Abby: And I know there's one more really cool thing
that this combine does that's pretty new, right?
Tell me about it.
Candi: Yeah, so it has been around for a few
years but it's the first combine that we've had
that we have been able to use it on.
It allows us to sync the grain cart tractor with
the combine and it matches my speed and position and
stays underneath me.
So if I need the cart to move forward I push a
button and nudge it forward a little or nudge
it back.
And it allows me to keep moving even while I'm
unloading the grain.
Abby: So, before we had this technology how was
that job done?
Candi: With really close coordination between one
driver and the other driver and usually ended
at some point with dad yelling at you because
every kid runs the grain cart first.
That's the first job.
Abby: Oh that's cool!
♪♪
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