Active Visual Method for Mobile Robots Localization using Double Freedom Pan-Title

2013 ◽  
Vol 336-338 ◽  
pp. 1053-1058
Author(s):  
Bo Wang ◽  
Xing Guang Qi
Keyword(s):  
Mobile Robot ◽  
Solution Method ◽  
Optical Axis ◽  
Kinematic Model ◽  
Field Of View ◽  
Position Vector ◽  
Dual Quaternion ◽  
Robot System ◽  
Visual Method ◽  
Extrinsic Parameters

For a monocular camera-based mobile robot system,we propose the active visual method for robot localization,based on the double freedom pan-tilt.First,the kinematic model of the mobile robot system of monocular vision is given.Secondly,by controlling the pitch and yaw angles of pan-tilt,the camera optical axis always points to the target geometry center in order to solve the field of view problem.Coordinate system relative pose solution method which based on dual quaternion avoids calculating the singularity and improves the positioning accuracy of mobile robots.Finally,according to pan-tilts feedback angles,extrinsic parameters of the camera,the pose and the position of the camera,the position vector and pose vector of the mobile robot are obtained.

Research on NN-PID Motion Control Technology for a Wheeled Mobile Robot

2012 ◽  
Vol 538-541 ◽  
pp. 2636-2640
Author(s):  
Shi Zhu Feng ◽  
Ming Xu
Keyword(s):  
Mobile Robot ◽  
Motion Control ◽  
Pid Controller ◽  
Mobile Robotics ◽  
Kinematic Model ◽  
Wheeled Mobile Robot ◽  
Control Technology ◽  
Robot System

Robotics is a spiry integral technology of mechanics, electrics and cybernetics. Through systematical study of a wheeled mobile robot, The kinematic model of it is deduced. A Cerebella Model Articulation Controller (CMAC) PID controller was developed to control the motion to accomplish the realistic motions of the wheeled mobile robot system. The experimental is carried out. The results prove the algorithm is correct, and indicate that the design of CMAC-PID controller is a success. The whole research will provide a reference to the study of the mobile robotics.

Tracking and Regulation Control of a Mobile Robot System With Kinematic Disturbances: A Variable Structure-Like Approach

2000 ◽  
Vol 122 (4) ◽  
pp. 616-623 ◽  
Author(s):  
W. E. Dixon ◽  
D. M. Dawson ◽  
E. Zergeroglu
Keyword(s):  
Mobile Robot ◽  
Model Simulation ◽  
Tracking Error ◽  
Kinematic Model ◽  
Parametric Uncertainty ◽  
Variable Structure ◽  
Tracking Errors ◽  
Robot System ◽  
Tracking Controller ◽  
Bounded Disturbances

This paper presents the design of a variable structure-like tracking controller for a mobile robot system. The controller provides robustness with regard to bounded disturbances in the kinematic model. Through the use of a dynamic oscillator and a Lyapunov-based stability analysis, we demonstrate that the position and orientation tracking errors exponentially converge to a neighborhood about zero that can be made arbitrarily small (i.e., the controller ensures that the tracking error is globally uniformly ultimately bounded (GUUB)). In addition, we illustrate how the proposed tracking controller can also be utilized to achieve GUUB regulation to an arbitrary desired setpoint. An extension is also provided that illustrates how a smooth, time-varying control law can be utilized to achieve setpoint regulation despite parametric uncertainty in the kinematic model. Simulation results are presented to demonstrate the performance of the proposed controllers. [S0022-0434(00)00504-9]

Design of automatic recharging system of robot based on RFID radio frequency technology

2020 ◽  
Vol 13 ◽  
Author(s):  
Zheng Xiao
Keyword(s):  
Mobile Robot ◽  
Radio Frequency ◽  
Engineering Application ◽  
Data Communication ◽  
Computer Application ◽  
Wireless Data ◽  
Robot System ◽  
Communication Module ◽  
Upper Computer ◽  
Better Than

Background: In order to study the interference of wired transmission mode on robot motion, a mobile robot attitude calculation and debugging system based on radio frequency (RF) technology is proposed. Methods: Microcontroller STM32 has been used as the control core for the attitude information of the robot by using MEMS gyroscope and accelerometer. The optimal attitude Angle of the robot is calculated through nRF24L01 which is the core of the wireless communication module, attitude acquisition module and wireless data communication upper computer application platform. Results: The results shows that the positioning accuracy is better than±5mm. Conclusion: The experimental results show that the proposed attitude solving and debugging system of mobile robot based on RF technology has better reliability and real-time performance. The propped model is convenient for debugging of mobile robot system and has certain engineering application value.

scholarly journals An Estimator for the Kinematic Behaviour of a Mobile Robot Subject to Large Lateral Slip

2021 ◽  
Vol 11 (4) ◽  
pp. 1594 ◽  
Author(s):  
Andrea Botta ◽  
Paride Cavallone ◽  
Luigi Tagliavini ◽  
Luca Carbonari ◽  
Carmen Visconte ◽  
...  
Keyword(s):  
Experimental Data ◽  
Mobile Robot ◽  
Trajectory Planning ◽  
Kinematic Model ◽  
Close Connection ◽  
Wheel Slip ◽  
Robot Architecture ◽  
Experimental Campaign ◽  
Base Concept ◽  
Kinematic Behaviour

In this paper, the effects of wheel slip compensation in trajectory planning for mobile tractor-trailer robot applications are investigated. Firstly, a kinematic model of the proposed robot architecture is marked out, then an experimental campaign is done to identify if it is possible to kinematically compensate trajectories that otherwise would be subject to large lateral slip. Due to the close connection to the experimental data, the results shown are valid only for Epi.q, the prototype that is the main object of this manuscript. Nonetheless, the base concept can be usefully applied to any mobile robot subject to large lateral slip.

A mobile robot system for automatic floor marking

2006 ◽  
Vol 23 (6-7) ◽  
pp. 441-459 ◽  
Author(s):  
Patric Jensfelt ◽  
Gunnar Gullstrand ◽  
Erik Förell
Keyword(s):  
Mobile Robot ◽  
Robot System

scholarly journals Three Wheeled Omnidirecional Mobile Robot - Design and Implementation

2021 ◽  
Author(s):  
Darci Luiz Tomasi Junior ◽  
Eduardo Todt
Keyword(s):  
Mobile Robot ◽  
Kinematic Model ◽  
Inverse Kinematic ◽  
Robot Design ◽  
Kinematic Equation ◽  
Design And Implementation ◽  
Validation Procedure ◽  
Functional Prototype ◽  
Detailed Presentation

This article presents a study of the resources necessary to providemovement and localization in three wheeled omnidirectionalrobots, through the detailed presentation of the mathematical proceduresapplicable in the construction of the inverse kinematic model,the presentation of the main hardware and software componentsused for the construction of a functional prototype, and the testprocedure used to validate the assembly.The results demonstrate that the developed prototype is functional,as well as the developed kinematic equation, given the smallerror presented at the end of the validation procedure.

scholarly journals The Mobile Robot HILARE: Dynamic Modeling and Motion Simulation

2015 ◽  
Vol 4 (2) ◽  
pp. 150
Author(s):  
M. Ghazal ◽  
A. Talezadeh ◽  
M. Taheri ◽  
M. Nazemi-Zade
Keyword(s):  
Mobile Robot ◽  
Dynamic Analysis ◽  
Dynamic Modeling ◽  
Kinematic Model ◽  
Dynamic Equations ◽  
Motion Simulation ◽  
Governing Equations ◽  
Kinematic Constraints ◽  
Extended Application ◽  
The Matrix

To perform mission in variant environment, several types of mobile robot has been developed an implemented. The mobile robot HILARE is a known wheeled mobile robot which has two fixed wheels and an off-entered orientable wheel. Due to extended application of this robot, its dynamic analysis has attracted a great deal of interests. This article investigates dynamic modeling and motion analysis of the mobile robot HILARE. As the wheels of the robot have kinematic constraints, the constraints of wheels are taken into consideration and the matrix form of the kinematic model of the robot is derived. Furthermore, dynamic model of the robot is developed by consideration of kinematic constraints. To derive dynamic equations of the robot, the Lagrange multiplier method is employed and the governing equations of the robot in state-pace form are presented. Then, some simulations are presented to show applicability of the proposed formulation for dynamic analysis of the mobile robot HILARE.

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