Modeling and control of dynamic systems - From electric vehicles to systems biology : Adachi's Group

At the Adachi Laboratory, the theme of research is modeling and control.

Control means actively changing a systems dynamics in a desired way. Control is utilized in various aspects of daily life.

Q. Specifically, as in the control of automobiles, satellites, and robots, were talking about controlling a moving object, that is, an object with dynamics. Control appears in various familiar settings, but we cant see it, so we may not know whats being controlled. For example, in a car engine, we control the timing to make the car run smoothly. We benefit from control in all sorts of places; its just that we dont know that because we cant see it happening. Were studying this kind of approach to control theoretically.

The Adachi Lab does research on control theory, which systemizes this approach to control. The subject of control theory is dynamic systems. Dynamic means that a systems motion can be represented by a set of differential equations. Virtually everything in the natural and artificial worlds can be considered as a dynamic system.

Q: Our group is strong in the field of system identification. We tackle difficult topics, such as how to construct a dynamic model of the subject system, and how to measure it. For example, if you want to control a robot, you need to know physical relationships and physical laws, such as what happens when the robot walks in a certain way. This sort of thing is called modeling, and thats what we do. System identification is one type of modeling, and were one of Japans top research groups in this field.

Model-based control has recently become a topical technology in industry. Most of the Adachi Labs research is done in collaboration with businesses. This work involves the practical application of control theory, using the latest experimental equipment.

Q: The really interesting thing about control is that it isnt restricted to certain things. As long as something moves, so it has dynamics, it can be a subject for control. If you ask why Im doing this research, its because: If I want to control a car, I just need to study cars, if I want to control a satellite, I just need to study satellites. And what Im doing now is trying to control protein networks in organisms. In other words, every time we find something new, we can utilize control in various places, and we can improve performance. I think thats extremely interesting. Conversely, control theory is abstract, in the sense that it can be used for anything. Whether someone finds that interesting depends on the person, but if you do enjoy that kind of abstract subject, this is a very interesting discipline. If we dont have people who find it interesting, well be in trouble! Everyones interested in things that move, like robots. Thats because you can understand them by watching them. Doing that is also very important, but we want students and researchers who can see whats actually happening inside.

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Science & Technology

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[askd221]

the most important part is the operation of modeling the system by differential Equations so that the micro controllers or processors can do the processing