Open AccessMobile robot turned on by sound and directionally controlled by an external light source
Author(s) -
Luis G. Lafaurie,
Fredy E. Hoyos,
Jhon Edwin Candelo-Becerra
Publication year - 2019
Publication title -
international journal of electrical and computer engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.277
H-Index - 22
ISSN - 2088-8708
DOI - 10.11591/ijece.v9i4.pp2840-2847
Subject(s) - pulse width modulation , dc motor , computer science , signal (programming language) , matlab , battery (electricity) , electronic circuit , mobile robot , acoustics , robot , electrical engineering , simulation , physics , voltage , power (physics) , engineering , artificial intelligence , quantum mechanics , programming language , operating system
This paper presents theoretical, numerical, and experimental tests of a mobile robot, which starts on the emission of a strong sound, like an applause, and the direction and speed of the vehicle is controlled by an external pulsed light source (PWM signal). The simulation is performed in MATLAB-Simulink; electrical circuits and the experiment are shown in detail. The results show that the vehicle speed can be controlled with a PWM signal from an external light falling on the LDR sensors. Besides, the circuit was designed to consume less than 1 ampere with the four motors moving at full speed, which can easily be powered by lithium battery.