Results 31 to 40 of about 1,700 (191)

Improving the Robustness of Visual Teach‐and‐Repeat Navigation Using Drift Error Correction and Event‐Based Vision for Low‐Light Environments

Advanced Robotics Research, EarlyView.
Visual teach‐and‐repeat (VTR) navigation allows robots to learn and follow routes without building a full metric map. We show that navigation accuracy for VTR can be improved by integrating a topological map with error‐drift correction based on stereo vision.
Fuhai Ling, Ze Huang, Tony J. Prescott
wiley   +1 more source

Task-Space Control of Articulated Mobile Robots With a Soft Gripper for Operations [PDF]

, 2019
A task-space method is presented for the control of a head-raising articulated mobile robot, allowing the trajectory tracking of a tip of a gripper located on the head of the robot in various operations, e.g., picking up an object and rotating a valve ...
Kenjiro Tadakuma, Masahiro Fujita, Mizuki Nakajima, Motoyasu Tanaka   +3 more
core   +2 more sources

A Comprehensive Multistage Average Controller for Trajectory Tracking in Solar‐Powered Mobile Robots: Analysis of Actuator‐Driver and Power Stage Integration

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This work addresses the challenge of bidirectional trajectory tracking in solar‐powered wheeled mobile robots (WMRs), considering the mechanical structure, actuator‐driver, and power stage subsystems. Notably, this is the first study to explicitly model and control the actuator‐driver subsystem within this context. The proposed solution relies
Benjamin Natanael Santiago‐Nogales, Julio Cesar Ordaz‐Dehesa, Ramón Silva‐Ortigoza, Erik Reyes‐Reyes, J. Martín Alba‐Martínez, Juan Eduardo Velázquez‐Velázquez, José Rafael García‐Sánchez, Magdalena Marciano‐Melchor, Hind Taud   +8 more
wiley   +1 more source

Design of a Fuzzy Logic Controller for Skid Steer Mobile Robot [PDF]

, 2009
The control problem of four-wheeled skid steering mobile robots is quite challenging mainly because the skid steering system is an underactuated system and its mathematical model is highly uncertain.
Abdul Rahman, Mohd Azizi
core  

Adaptive neuro-fuzzy technique for autonomous ground vehicle navigation [PDF]

, 2014
This article proposes an adaptive neuro-fuzzy inference system (ANFIS) for solving navigation problems of an autonomous ground vehicle (AGV). The system consists of four ANFIS controllers; two of which are used for regulating both the left and right ...
De Berg, Garrido, Khelchandra, Nonami
core   +2 more sources

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Navigation without localisation: reliable teach and repeat based on the convergence theorem

, 2018
We present a novel concept for teach-and-repeat visual navigation. The proposed concept is based on a mathematical model, which indicates that in teach-and-repeat navigation scenarios, mobile robots do not need to perform explicit localisation.
Halodova, Lucie, Krajnik, Tomas, Majer, Filip, Vintr, Tomas   +3 more
core   +1 more source

On the Experimental Analysis of Integral Sliding Modes for Yaw Rate and Sideslip Control of an Electric Vehicle with Multiple Motors [PDF]

, 2018
With the advent of electric vehicles with multiple motors, the steady-state and transient cornering responses can be designed and implemented through the continuous torque control of the individual wheels, i.e., torque-vectoring or direct yaw moment ...
A. M. Dizqah, A. Zanten van, A. Zanten van, Aldo Sorniotti, Antonio Tota, B. Lenzo, Basilio Lenzo, C. Bohn, C. Geng, D. A. Crolla, D. J. Stilwell, D. Savitski, D. V. Thang Truong, E. Ostertag, Enrico Galvagno, F. Assadian, G. Kaiser, G. Palmieri, H. Yu, H. Zhang, H. Zhang, ISO 3888–2, J. A. Pytka, Jasper De Smet, K. Nam, L. Novellis De, L. Novellis De, L. Novellis De, L. Novellis De, L. Xiong, M. Abe, M. Canale, M. Jalali, M. Shino, M. Yokoyama, Mauro Velardocchia, P. Falcone, P. Raksincharoensak, Patrick Gruber, Q. Lu, Q. Lu, Qian Lu, R. Marino, R. Tchamna, S. Ding, S. Zheng, Saber Fallah, T. Goggia, T. Goggia, V. Cerone, V. Utkin, V. Utkin, W. F. Milliken, W. J. Manning, X. Li, Y. Chen, Y. Shtessel   +56 more
core   +3 more sources

Control System for the Navigation of the Agricultural Robots: A Review

Journal of Field Robotics, EarlyView.
ABSTRACT Control systems for the navigation of autonomous agricultural robots—particularly those operating in uneven terrain and in the presence of static or dynamic obstacles—have advanced considerably in recent years. As conventional machinery evolves toward increasingly automated systems, the design of reliable navigation controllers has become ...
Edna Carolina Moriones Polanía, Hugo Rafacho Fernandes, Daniel Albiero, Angel Pontin Garcia   +3 more
wiley   +1 more source

Development and Control of Articulated Mobile Robot for Climbing Steep Stairs [PDF]

, 2018
In this paper, we develop an articulated mobile robot that can climb stairs, and also move in narrow spaces and on 3-D terrain. This paper presents two control methods for this robot.
Kazuo Tanaka, Mizuki Nakajima, Motoyasu Tanaka, Yosuke Suzuki   +3 more
core   +2 more sources