Authors:
Thiago Moreira
1
;
José Lima
2
;
Paulo Costa
3
and
Márcio Cunha
1
Affiliations:
1
Academic Department of Electronic, Federal University of Technology, Paraná and Brazil
;
2
CeDRI - Research Centre in Digitalization and Intelligent Robotics, Polytechnic Institute of Bragança, Bragança, Portugal, INESC TEC - INESC Technology and Science and Faculty of Engineering of University of Porto, Porto and Portugal
;
3
INESC TEC - INESC Technology and Science and Faculty of Engineering of University of Porto, Porto and Portugal
Keyword(s):
Object Detection, Echolocation, Sonar, Mobile Robot Navigation.
Related
Ontology
Subjects/Areas/Topics:
Engineering Applications
;
Informatics in Control, Automation and Robotics
;
Intelligent Control Systems and Optimization
;
Robotics and Automation
;
Sensors Fusion
;
Signal Processing, Sensors, Systems Modeling and Control
Abstract:
In the world of mobile robot navigation, the ultrasonic sensors stand out for presenting attractive features at an affordable cost. The main problem in the use of these devices lies in the difficulty of correctly interpreting the obtained data, which means that their efficiency is limited. This paper focuses on the improvement and implementation of a low cost location system based on ultrasonic sensors. Through the combination of mathematical techniques and signal processing it is possible to make the system more accurate and reliable. The developed system includes the data acquisition, the signal filtering, and the trigonometric methods to estimate the coordinates of a target and can be assembled in a mobile robot.