J 2019

Identification of dynamics of movement of the differential mobile robotic platform controlled by fuzzy controller

VACHO, Lukáš, Martin OLEJÁR, Dušan HRUBÝ, Vladimír CVIKLOVIČ, Jan VALÍČEK et. al.

Basic information

Original name

Identification of dynamics of movement of the differential mobile robotic platform controlled by fuzzy controller

Name in Czech

Identifikace dynamiky pohybu diferenciální mobilní robotické platformy ovládané fuzzy řadičem

Authors

VACHO, Lukáš (703 Slovakia, guarantor), Martin OLEJÁR (703 Slovakia), Dušan HRUBÝ (703 Slovakia), Vladimír CVIKLOVIČ (703 Slovakia), Jan VALÍČEK (203 Czech Republic, belonging to the institution), Zuzana PALKOVÁ (703 Slovakia, belonging to the institution), Marta HARNIČÁROVÁ (203 Czech Republic, belonging to the institution) and Hakan TOZAN (792 Turkey)

Edition

Tehnicki Vjesnik, Osijek, Chorvatsko, Sveuciliste Josipa Jurja Strossmayera u Osijeku, 2019, 1330-3651

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

20204 Robotics and automatic control

Country of publisher

Croatia

Confidentiality degree

is not subject to a state or trade secret

References:

Impact factor

Impact factor: 0.670

RIV identification code

RIV/75081431:_____/19:00001696

Organization unit

Institute of Technology and Business in České Budějovice

UT WoS

000499332300015

Keywords (in Czech)

Dynamický systém; Fuzzy ovladač; Inkrementální senzor; Mobilní robot; Modelování

Keywords in English

Dynamic systém; Fuzzy controller; Incremental sensor; Mobile robot; Modelling

Tags

Changed: 22/4/2020 14:27, Ing. Anna Palokha

Abstract

V originále

Mobile robots with differential chassis are very often used because of simple construction and a smaller number of drive and sensors elements. For practical applications, it is necessary to know the kinematic and dynamic structure of the differential mobile robot. This paper deals with identification of the dynamics of the differential robotic platform, using differential kinematics. Electro-optical rpm sensors obtain required values such as speed of the driven wheels. Identification of dynamic system is used to determine the dynamic characteristics of power subsystem of developed EN 20 robot, whose control subsystem is created by single-chip microcontroller. Response of the dynamic system is monitored along with the peripheral velocity of the right and left drive wheels. Incremental encoders that work on optics principle measure the speeds of both wheels. It was necessary to calibrate the sensors and obtain constants for precise speed determination. The monitored system with the dumped oscillation characteristic is approximated by a system with the inertia of the 2nd order. Dynamic system parameters are found. The system approximation is suitable for given evolution of circumferential speeds of the right and left wheels. This is confirmed by the quantitative determination coefficients R2. The equations for calculating peripheral velocities of driving wheels are applied to the system of the differential equations for the differential chassis. A mathematical model of the mobile robot EN20 was obtained for testing control algorithms, where a robot is equipped with sensory systems and it is designed for interior conditions. Fuzzy controller with 49 interference rules is used to control the mobile robot. The real mobile robot path matches the path determined according to simulation model. © 2019, Strojarski Facultet. All rights reserved.