Shirzadeh Masoud, Amirkhani Abdollah, Jalali Aliakbar, Mosavi Mohammad R
Department of Electrical Engineering, Iran University of Science and Technology, Tehran 16846-13114, Iran.
Department of Electrical Engineering, Iran University of Science and Technology, Tehran 16846-13114, Iran.
ISA Trans. 2015 Nov;59:290-302. doi: 10.1016/j.isatra.2015.10.011. Epub 2015 Oct 30.
This paper aims to use a visual-based control mechanism to control a quadrotor type aerial robot which is in pursuit of a moving target. The nonlinear nature of a quadrotor, on the one hand, and the difficulty of obtaining an exact model for it, on the other hand, constitute two serious challenges in designing a controller for this UAV. A potential solution for such problems is the use of intelligent control methods such as those that rely on artificial neural networks and other similar approaches. In addition to the two mentioned problems, another problem that emerges due to the moving nature of a target is the uncertainty that exists in the target image. By employing an artificial neural network with a Radial Basis Function (RBF) an indirect adaptive neural controller has been designed for a quadrotor robot in search of a moving target. The results of the simulation for different paths show that the quadrotor has efficiently tracked the moving target.
本文旨在运用基于视觉的控制机制来控制一架四旋翼型空中机器人,该机器人正在追踪一个移动目标。一方面,四旋翼的非线性特性,另一方面,为其获取精确模型的困难,在为该无人机设计控制器时构成了两个严峻挑战。针对此类问题的一个潜在解决方案是使用智能控制方法,例如那些依赖人工神经网络及其他类似方法的控制方法。除了上述两个问题外,由于目标的移动特性而出现的另一个问题是目标图像中存在的不确定性。通过采用具有径向基函数(RBF)的人工神经网络,为搜索移动目标的四旋翼机器人设计了一种间接自适应神经控制器。不同路径的仿真结果表明,四旋翼已有效地追踪了移动目标。