Roll Motion Prediction of Unmanned Surface Vehicle Based on Coupled CNN and LSTM

Wenjie Zhang, Pin Wu, Yan Peng and Dongke Liu
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Wenjie Zhang: School of Computer Engineering and Science, Shanghai University, Shanghai 200444, China
Pin Wu: School of Computer Engineering and Science, Shanghai University, Shanghai 200444, China
Yan Peng: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China
Dongke Liu: School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, China

Future Internet, 2019, vol. 11, issue 11, 1-15

Abstract: The prediction of roll motion in unmanned surface vehicles (USVs) is vital for marine safety and the efficiency of USV operations. However, the USV roll motion at sea is a complex time-varying nonlinear and non-stationary dynamic system, which varies with time-varying environmental disturbances as well as various sailing conditions. The conventional methods have the disadvantages of low accuracy, poor robustness, and insufficient practical application ability. The rise of deep learning provides new opportunities for USV motion modeling and prediction. In this paper, a data-driven neural network model is constructed by combining a convolution neural network (CNN) with long short-term memory (LSTM) for USV roll motion prediction. The CNN is used to extract spatially relevant and local time series features of the USV sensor data. The LSTM layer is exploited to reflect the long-term movement process of the USV and predict roll motion for the next moment. The fully connected layer is utilized to decode the LSTM output and calculate the final prediction results. The effectiveness of the proposed model was proved using USV roll motion prediction experiments based on two case studies from “JingHai-VI” and “JingHai-III” USVS of Shanghai University. Experimental results on a real data set indicated that our proposed model obviously outperformed the state-of-the-art methods.

Keywords: CNN; data-driven; LSTM; roll motion prediction; unmanned surface vehicle (search for similar items in EconPapers)
JEL-codes: O3 (search for similar items in EconPapers)
Date: 2019
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