Simulation of Evolutionary Reinforcement Learning-Based Self-Balancing Throwable One-Legged Robot with a Reaction Wheel

Abstract

In this paper, the One-Legged robot is designed to stabilize itself and stand upright at the desired location after being thrown from a different heights. The 5-DOF planar underactuated main body is driven by Reaction wheels, and adaptive Cartesian impedance control has been implemented to effectively manage hard impacts. Evolutionary Reinforcement Learning based AI Agent have been used to adapt to different launch conditions, such as varying speed and altitude. The learning process was performed in real-time using the Matlab simulation program, which models the system dynamics of the robot. The graphical results of the simulation confirm that, with the assistance of the AI agent, the dynamic robot has successfully maintained its stability without tipping over after the launch and has been able to make the desired correction.

Keywords

• Self balance
• ERL Learning
• Simscape Multibody Model

Tepki Tekerleği ile Evrimsel Takviyeli Öğrenme Tabanlı Kendini Dengeleyen Fırlatılabilir Tek Bacaklı Robotun Simülasyonu

Öz

Bu çalışmada, Tek Bacaklı robot farklı yüksekliklerden fırlatıldıktan sonra kendini dengeleyerek istenilen konumda dik duracak şekilde tasarlanmıştır. 5 serbestlik dereceli (5-DOF) düzlemsel ve aktüatörsüz ana gövde, Reaksiyon Tekerlekleri ile tahrik edilmekte olup, sert darbelere etkili bir şekilde tepki verebilmek için adaptif Kartezyen empedans kontrolü uygulanmıştır. Farklı fırlatma koşullarına (hız ve irtifa değişimi gibi) uyum sağlamak amacıyla Evrimsel Pekiştirmeli Öğrenme tabanlı bir yapay zeka ajanı kullanılmıştır. Öğrenme süreci, robotun sistem dinamiklerini modelleyen Matlab simülasyon programı kullanılarak gerçek zamanlı olarak gerçekleştirilmiştir. Simülasyonun grafiksel sonuçları, yapay zeka ajanının yardımıyla dinamik robotun fırlatma sonrası devrilmeden dengesini başarıyla koruduğunu ve istenilen düzeltmeyi yapabildiğini doğrulamaktadır.

Anahtar Kelimeler

• ERL Learning
• Simscape Multibody Model
• Dengelenme Öğrenimi

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