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标题:Optimal Feedback Control based on Analytical Linear Models extracted from Neural Networks trained for Nonlinear Systems
作者:Yu Duan, Shuhei Ikemoto, and Koh Hosoda
来源:2018 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)
编译:明煜航
审核:颜青松,陈世浪
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摘要
很多的研究都关注于如软骨骼系统的软体机器人的发展和控制。迄今,虽然这些机器人的控制器极其简单,但是他们已经展现出了对于环境很强的适应能力。然而,因为这些机器人很难用数据模型来表述, 所以现在任然没有一个系统的设计策略来设计简单控制器,只能用控制理论来处理传统机器人问题。
为了处理这个问题,作者提出了一种使用神经网络的全新方法来获得数学模型。特别是,在使用这种方法时,控制理论被运用到从训练好神经网络中提取出的线性系统模型上,来表达机器人的前进动态。通过模拟,作者验证了所提方法的有效性及优势。
Abstract
A number of researches have been focusing on the development and control of robots with soft structures such as flexible musculoskeletal systems. Thus far, it has been reported that these robots can achieve high adaptability to environments despite their extremely simple controllers. However, because these robots are difficult to model mathematically, there is still no systematic design policy, in which control theory has been playing a role in conventional robotics, for constituting simple controllers. To tackle this problem, we propose a new approach using a neural network to obtain mathematical models. In particular, with this method, the control theory is applied to linear system models extracted from a network trained to express the forward dynamics of a robot. Through simulations, the validity and advantage of the proposed method was successfully confirmed.
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