Mathematical modeling, dynamics analysis and control of carnivorous plants

Abstract

The focus of this chapter is to analyze the sensing and actuating mechanism of the Venus flytrap (Dionaea muscipula) by developing a control model to explain these phenomena. The mathematical model captures the dynamic responses of the flytrap in different environmental conditions. In addition, this model emphasizes the existence of the threshold accumulation of the trigger signal and the semi-closed state, which are largely ignored in other models. Furthermore, a biomimetic robot was constructed to demonstrate the feasibility of the mathematical model. While the robot serves as a prototype to demonstrate the control model, future applications using this control could aid microsensors and microgrippers to reduce false alarms. In summary, this chapter uses the Venus flytrap as an example to illustrate the integration between biology, theoretical modeling, and engineering. Such integration and inspiration from the natural world will significantly contribute to advances in these various disciplines.