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A two-wheeled self-balancing robot is a special type of wheeled mobile robot, its balance problem is a hot research topic due to its unstable state for controlling. In this paper, human transporter model has been established. Kinematic and dynamic models are constructed and two control methods: Proportional-integral-derivative (PID) and Linear-quadratic regulator (LQR) are implemented to test the...
To execute such robotic tasks as behaving interactions with the environment, it is required to control not only the position of a manipulator but also the force exerted at the contact. The paper first presents the dynamic modeling of the mobile modular robot (MMR) which is composed of the mobile platform and the modular manipulator. The mobile robot, having two degrees of freedom(DOF) because of the...
The paper firstly presents a mobile humanoid robot whose upper human-like body is rigidly mounted on the mobile platform with three wheels: two driving wheels and one caster wheel. The wheeled mobile platform moves on the ground subjected to nonholonomic constraints. Then the static equilibrium of the robot on a plane is discussed and tip-over stability of mobile humanoid robot moving on the slope...
This paper first presents a modeling method for a mobile humanoid robot whose upper human-like body is mounted on a mobile platform supported by three wheels (two driving wheels and one caster wheel). The upper body connects the platform by two-DOF joint and the wheeled platform moves on the ground subject to nonholonomic constraints. Then based on Lie groups and screw theory, the kinematics and dynamics...
Many types of mobile humanoid robots combining both the characteristics of mobile robot and humanoid robot have been developed in the literatures in the past two decades. This paper is aimed at presenting a survey of robotic structures for the mobile humanoid robots. The most used ones are wheeled mobile humanoid robots with their salient features of the human-like upper body normally containing two...
When a mobile robot performs some special tasks, such as carrying a heavy load, moving on a slope or rough terrain, particularly contacting with the environment, it may become unstable even overturn. First, the paper presents a mobile humanoid robot whose upper human-like body is mounted on the mobile platform supported by three wheels (two driving wheels and one caster wheel) and subjected to nonholonomic...
This paper presents a kind of modeling method for a two-body mobile robot, provides with its kinematic structure parameters and analyzes the forward kinematics and inverse kinematics. Considering the case of surpassing obstacles actively for this two-body mobile robot, the solutions of inverse kinematics are given out based on the geometric approach. Surpassing obstacles and turning analysis are made...
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