Junkai Ren

ORCID: 0009-0008-9011-7267
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About
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Research Areas
  • Robotic Locomotion and Control
  • Robotic Path Planning Algorithms
  • Robot Manipulation and Learning
  • Teaching and Learning Programming
  • Control and Dynamics of Mobile Robots
  • Soft Robotics and Applications
  • Teleoperation and Haptic Systems
  • Robotics and Automated Systems
  • Reinforcement Learning in Robotics
  • Prosthetics and Rehabilitation Robotics
  • Muscle activation and electromyography studies

National University of Defense Technology
2016-2025

ABSTRACT Tracked robots equipped with flippers and sensors are extensively employed in outdoor search rescue scenarios. However, achieving precise motion control on complex terrains remains a significant challenge, often necessitating expert teleoperation. This stems from the high degree of robot joint freedom need for flipper coordination based terrain roughness. To address this problem, we propose F lipper‐ T rack R obot Bench mark ( FTR‐Bench ), simulator featuring flipper‐track tasked...

10.1002/rob.22528 article EN Journal of Field Robotics 2025-02-05

This paper describes the design, realization and testing of an active ball handling mechanism which is designed for dribbling in RoboCup Middle Size League used by our team NuBot. First, a virtual model simplified derived. Afterwards, control system including feedback controller feedforward developed step step. Experimental results show that stays contact with robot using proposed when driving forwards, backwards rotating.

10.1109/ccdc.2016.7531777 article EN 2016-05-01

In highly dynamic environments, mobile robots are required to perform fast, accurate and stable tracking of high-speed trajectories. However, most research focus on the control algorithm for tracking, rare works reported which specifically deal with communication problem structure system. This paper proposes a novel composed approach improve motion performance real-time reaction ability robot. First foremost is organize hierarchical robot this structure, PD controller trajectory improved...

10.23919/chicc.2018.8484052 article EN 2018-07-01

Developing a human bionic manipulator to achieve certain humanoid behavioral skills is rising problem. Enabling robots operate the steering wheel drive vehicle challenging task. To address problem, this work designs novel 7-DOF (degree of freedom) based on arm structure bionics. The 3-2-2 structural arrangement motors and modifications at wrist allow act more similar man. Meanwhile, manipulate stably compliantly, an admittance control approach firstly applied for case. Considering that...

10.3390/biomimetics8060495 article EN cc-by Biomimetics 2023-10-19
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