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Robotics + Ag with Dr. Dan Flippo, biological and agricultural engineering
04/13/2021
Robotics + Ag with Dr. Dan Flippo, biological and agricultural engineering
How do we plan to feed 9.8 billion people by 2050? Increasing the availability of sustainable, arable land through the use of modern robotics could help to expand food production, and reduce the need for destruction of forested land. In this episode of our podcast, we talk with , Patrick Wilburn Keystone Research Scholar in at Kansas State University, about the work he is doing to mesh state-of-the-art robotic technology with food production to move toward sustainably feeding the world past 2050. Transcript: Robotics + agriculture with Dr. Dan Flippo, biological and agricultural engineering Something to Chew On is a podcast devoted to the exploration and discussion of Global Food Systems produced by the Office of Research Development at Kansas State University. I'm Maureen Olewnik, coordinator of Global Food Systems. I'm Scott Tanona. I'm a Philosopher of Science. I’m Jon Faubion. I’m a Food Scientist. Hello everyone and welcome back to the Kansas State University Global Food Systems podcast Something to Chew On. How do we plan to feed 9.8 billion people by 2050? Increasing the availability of sustainable arable land through the use of modern robotics could help to expand food production, potentially reducing the destruction of forested land. In this episode of our podcast, we will talk with Dr. Dan Flippo, the Patrick Wilborn Keystone Research Scholar in Biological and Agricultural Engineering at K State, about the work he is doing to mesh state of the art robotic technology with food production to move towards sustainably feeding the world past 2050. Dan, welcome to the podcast. We were looking forward to understanding more about your current research. But before we get into that, can you give us a little background on yourself and how you became interested in this area of study. So I am actually from Kansas, they grew up near Wichita, a little town called Douglas on what's called a hobby farm nowadays, we didn't call it back then. But my dad worked at the post office all day and then came home and farmed. We didn't have too many acres. It was just enough to, it was more of a side business for him. And he wanted it, like it, for it to expand, but it never worked out. He was plagricultureued with machinery problems. And so we had, I have so many memories of broken tractors and that New Holland baler, his was kind of his bane of his existence, it caused a lot of problems. And so I kind of grew up with this mentality that farmers, you know, they're more machinists, mechanics, you know, and they cost it machinery and things like that. And so I went to, I came to undergrad here at K State, in mechanical engineering. And so some of the professors that are still over there taught me and after that I had really no interest in going back to grad school, I went to work at Cessna aircraft in Wichita. Worked there about eight years. And then I mean, my wife and for son, we quit that job and went to grad school while I was at Wichita State System paid for a master's degree in robotics, and mechanical engineering, but emphasis on robotics. And then we went to the University of Oklahoma. And I studied under Dr. David Miller, who is well known as far as planetary science, planetary robotics, planetary exploration. So nothing to do with agriculture really at all up to that point in my education. So I did a lot of wheel to soil interaction traction, specifically with robots and built a very big test apparatus. And I wanted to teach at K State actually. So the reason we went to Oklahoma, went out of state was the purpose of getting back to K State. And so I learned a lot about just the robotic world and the robotic feel soil interaction, it was regolith, really not soil that. And then after I graduated there, there was new university jobs, nothing and I was really set on being in Kansas. And so opening came up in a John Deere in Iowa, programming large tractors and so this is kind of my getting back into the agriculture world and agriculture industry. So I worked at John Deere for about two and a half years, and that's when K State job came up. And it turned out it more of a postdoc for me, kind of introduced to a lot of features and the customer world of agriculture machinery. Didn't like Iowa, it’s really too cold for me. So in 2013, I applied and we got a job here K State. And Dr. Joe Harner. He's already department head, he had a kind of a vision for robotics and kind of that next phase of agriculture. So he was very intent on getting someone who has specific interests in robotics. And so I came in 2013. And we've been here since then. I teach agriculture machinery courses, off road machinery courses, hydraulics, some mechatronics. engine power transfer. My research is in robotics. And so specifically small robotics, what I mean by that is like wheelchair sized robotics, in the agriculture field, so we've kind of focused on the smaller side, just for safety reasons. Because we've found that, you know, once a robot is big enough to hurt somebody, then the amount of sensors and, and technology and complexity goes way up. And so we've kind of, we've kind of focused in on the smaller robotics, and to try to stay away from all that complexity. If my robots ran into you, they would just either stop or run over your toe or something like that. But they wouldn't, they wouldn't hurt you. So we've been successful. We've been successful with that. We've gotten several grants through USDA, some corn commission grant and some EPSCoR grants with and throughout this time here at K State, I've had some really good collaboration with people. Dr. Stephen Welch has been kind of a mentor to a lot of us. He's got some fun stuff going on. And he's always big into dreaming. And so he's, he's on several of my grants. I'm on his EPSCoR grant, Dr. Brian McCormick over an entomology, we've worked a lot with him, he's always fun. To come up with crazy ideas. We had some ideas about shooting lasers at aphids and things. And so he was all about that he enjoyed that. And so this is where we're at, you know, right now we're trying to finish several of these big grants we got one of them is the high sloped hill, where we're trying to increase our arable land, by farming on on hills that conventional tractors can't go is wouldn't be safe. And so we have these smaller wheelchair size tracked vehicles that plant wheat on hills, and either lead cattle graze on that weed or are harvested. So we're working on that we're working on a Dr. Ajay Sharda, who's my colleagricultureue, he's got an NRI grants, National Robotics Initiative. Both those are and it's, we're have a robot that looks for aphids on sorghum and using machine learning. And this, when it spots an aphid or thinks it does, it sprays just that one plant. And so we have a spray rig on a four wheeled robot, and this will save an immense amount of chemical, both for costs for the farmer and environment. And so I think with you know, it kind of brings up a point where these robotics, we're kind of in a new world, as far as farming goes up into this point, we've progressed, you know, we started with just scattering a seed, then the horses and oxen, and then there was a phase change kind of facing that's assessment term, aircraft term phase changes, when you go from one look to another, a big change in design. He went to two mechanical tractors, you know, there's a lot of farmers thought that they we had cabs on our, on our farmers and we had auto steer, then we had bigger and bigger tractors. And we've come in some some issues with just making tractors bigger and bigger. And we, we've done that because of labor shortages and skilled labor shortages. And so we run into problems with the road, and you know, transportation, getting those big tractors, on Highway, soil compaction, things like that. So what we're really trying to focus on is the smaller vehicles, and this has allowed us to kind of open up the world and kind of get rid of a lot of assumptions about farming, you know, really is you're just getting the seed in the ground. And then you're taking the yield from that plant. And so how do we do that? We have a small vehicle, so we've had to kind of rethink how to plant were we thinking, you know, the options are kind of open right now we can we can think about multi crops in the fields and more environmental conscious farming. You know, one thing that we kind of talked about here is that we're able to do more environmentally responsible agriculture, because we're bringing in technology because we can rethink how we do things with the smaller robots and stuff. That's kind of where we're at. I'd like to hear just a little bit more about what you think this opens up. So you know, you mentioned the phase change and You know, each of these new technologies really changed the way our culture was done right and a change sometimes change what was what was actually grown change how it has grown change the, you know, economics and, and the nature of farms. And so, you know, with all the openness of the future that you just talked about, it's hard to say, but I'm curious just about what kind of where you think we're heading with all this change? You know, what, what is it? What is it set up for us? Oh, that's a good question. I mean, I'm just thinking, you know, right now, with my robots, I'm trying to think through how we can redo things but want for instance, I was just having a conversation with Dr. Sharda, the other day about, you know, the whole Native American, they do the three sisters method where they grow beans, squash, and corn all at the same time. And those three crops help each other one fights off bugs, the other one gives, you know, the corn gives the beans, some of the verlon with the small robots and automation, you know, we can think about multi crop fields, and not just mono mono crops. And so that kind of a lot of people, you know, I think farm and they take it a certain way. And right now, there's a lot of startups with, with agriculture robotics. And there's tons of them, a lot of bigger companies like the company I worked for, and even the other two big companies that do agriculture equipment, they're a little scared of having their tractors being autonomous, and then they do concept vehicles, things like that. But, it's a big risk to have a big tractor, computer controlled risk. And for the people that are there, you know, if there was a Sunday there in the field, which has happened, you know, things like that. So, there's a lot that has to happen before, I think these big companies are going to, really sell on autonomous tractors. But the startups are crazy. And they're mostly smaller vehicles. There are some like mid tractor size startup companies. But I think it's going to kind of generate this startup level of people coming ideas and ask them questions like, Why do we have to do it this way? And maybe they're not farmers, maybe they maybe they're just either hobby farmers or urban farmers? You know, why not? I saw a gantry farming thing where it just has like a small bed that you put in your apartment or somewhere and it has a gantry, that plants and that takes care of all the plants and things like that. Um, where are we going? Yeah, that's, an interesting question. I, I don't see us getting rid of tractors for quite some time. I mean, the, the amount of power and work that is done in one pass in those tractors on a flat field is amazing. And I think the tractor companies have really come a long way as far as technology and things. And they're expensive, too. I think for a long time. These smaller tractors, these smaller robots that we're working on, are coming in kind of augmenting, either like on high school Till's or farmers that are just getting going, you know, that scalable, you know, they, they want to farm more land, they just kind of bind the robot, things like that. Right now, we're trying to just get people to rethink because farmers have the kind of the tendency or reputation of being somewhat stubborn. And so they do things the way their dad did data, data is another one. I mean, there's so much data right now, coming off of agriculture vehicles, and fighting over who gets that data. Other companies will say that, that data is the farmers. But so there's so much data that no one knows what to do with. I mean, we have images of fields. And so right now, I think there's going to have to be some people really picking up the data, data analysis part of it to try to help farmers make better decisions. Do you see the initial use of your work? You mentioned urban farming and that type of thing. And kind of the difficulty in introducing this into the very large scale? Do you see it first being introduced into the smaller urban farming or, you know, smaller farming type systems prior to and then kind of building up from there? I do. I think people that enjoy that technology, you know, the people that get the iPhones and stuff like that, they all kind of think this is really cool. And start there. I see a big community doing that. That's why with this grant, we kind of try to focus on sloped Hills because this is not any place where a tractor can go. And so this kind of helps feed the world. A big push, you know, I'm sure you guys have heard the 2050 push where, you know, we have to feed over 9 billion people by 2050. And so this is kind of an industry rally cry, you know, John Deere kind of talked about that a lot. So we have really, he tried to bring awareness about that as well. And so one way of doing that is, is opening up these little pills that no one's using. So do you conceive of these as being scalable? If, if a large producer wanted to take them on rather than having to do, I don't know, how many passes on a, on a three on one subsection field, that there'll be multiple of these units is that? Yes, yes, it's kind of the scrubbing bubbles, technique. Remember that commercial. So you have, you'll have a bunch of a swarm of robots that will work day and night, to get the work done. And now, my robots are pretty slow, you know, they make one pass really easy, but you can have a bunch of them. And so we're gonna have to, you know, networking, as far as wireless connectivity, you know, in the rural areas, and things like that, is gonna have to be extended quite a bit. So right now, you know, thanks to the bigger tractor companies where we have RTK GPS, which is, you know, very sub centimeter accuracy GPS, and that's, we have a lot of stations and stuff. And so we're able to use that, but we're gonna have to, we're looking at right now, you know, different wireless technologies, Dr. Sharda, especially, is looking at different wireless technologies to get to talk from, you know, inside the canopy of like corn. And so one one, not another nice thing about these small robots is that we can be under the canopy of crops. And we're not looking down at the leaves that are healthy, we're looking at from up and seeing where the bugs are trying to see where water stress is, and try to get to a better health picture of what's going on underneath. So I was wondering if you could share a little bit more of the details of what has to be done to make these workable, I mean, so we've got some of the promise, right? Sir, we can open up areas like the soap pills, that can be more scalable, you can think about doing things differently, right, in terms of, you know, planting multiple crops, and you can reduce the use of pesticides. Right. So he's awesome, super positive. Right? So, what are the challenges for making it work? The biggest one, I think of right now is how to keep these guys powered, and how to service them. What I mean by services is, if they're planting, get them seed to plant, if they're harvesting, get that seat away from my vehicles are all like electric, so how to get batteries to them, without them coming back and having to do that. And so we're looking at some different things that actually, I don't know if they're gonna work or not, but we're looking at UAVs, you know, unmanned aerial vehicles to be carrying batteries to service and swap on these on these ground vehicles. And so that's one way of servicing the robot. So you can keep working. We were trying to stay away from fossil fuels, we're trying to keep you know, it all electrical. But the power density for diesel is so much more than a battery. And so it's just a big challenge. You know, if you have other robots, UAVs or other ground robots that are servicing, then you have to have quite a bit of communication between the two, you have to have routing plans. And things get a lot more complicated. And so I kind of see that once you work with multiple robots, them all working together, you know, that's going to be quite a task. And we have some very smart machine learning people working on this. And yeah, just getting them power and getting them seed or getting the heart the yield back from them. I think that's one of the things that it's kind of holding us up right now. You know, one thing I will say is that one thing we didn't see coming is getting seed in the ground in a no till situation like on a hill, my robots weigh about 180 pounds 200 If you load them down batteries. So a normal conventional planter, you know, takes at least 300 pounds to push down. And so we tried it, we loaded down with weight even and so we've had to think of some different ideas. And so now we're going with a powered Tiller planter that actually is is more or less a disk with with teeth on it. And it spins, I think it's about 240 rpm, and it it cuts a furrow do this ground and then we put seed in it then recovered back up. We just can't press a disk in there like a normal tractor. Good. So this takes up power. It's not ideal. It's not what we're going for. But we try to, to go with the simplest possible design and then kind of if that doesn't work, we kind of work ourselves up to more complex issues, but that's those are the biggest things that we run across right now is you know, you could have robots that when they ran out of juice, they come back, get recharged, and then go back out. But for a bigger field, that kind of becomes an not very good solution. What we see is the major push backs that you might get from farmers have spent 3035 years using different approaches in the mechanics we expect to have to answer to. Most of them don't believe that this will work. So yeah, and a lot of them, you know, my dad was same way kind of your link to the land. That's John years phrase, but they see farming as you're on a tractor. You're out on the field, you know, your field. Bouncing over the phone. Yeah. But the thing is, a lot of these bigger farmers have five 7000 acres, you know, doing their field? Is it them on the tractor? Can they really see how their crops are doing? And they can, in certain instances, you know, for what, for example, we have this duck shares, we're going on this NRI grant that spots, aphids. And so right now, you know, an entomologist, you call them up, he'll come to us a few places in your field. And say, either, yes, it's bad enough, you need to spray or no need to wait a little while. So either spray the whole field, or you don't spray enough, you know, and it's just issues like that. And so I think the pushback is, is people, you know, Agra culture, it's a culture and so people are kind of back against, that's not farming, you know, that's not sure. And I think, I think I wasn't around when this happened, but talk to my dad, you know, when people went from horses to tractors to this kind of the same tune. Yeah, attitude, same, you know, you're working together with your horse to, to work the land, you know, I read somewhere where, when calves come on tractors, people were like, you know, I want to smell the dirt, I want to smell the earth. And the auto steer, you know, it's not me steering,...
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