NeuroFSM: finite state machines learning using artificial neural networks applied to mobile robots and autonomous vehicles

Author(s)

Daniel Oliva Sales

• Document type: Master's Dissertation
• Press: São Carlos.
• Institution: Universidade de São Paulo (USP). Instituto de Ciências Matemáticas e de Computação (ICMC/SB)
• Defense date: 2012-07-23

Examining board members

Fernando Santos Osório; Josue Junior Guimarães Ramos; Denis Fernando Wolf

• Advisor: Fernando Santos Osório

Abstract

Autonomous navigation is a fundamental task in mobile robotics. In order to accurately perform this task it is necessary an intelligent navigation and control system associated to the sensorial system. This project presents the development of a control system for autonomous mobile robots and vehicles navigation. The adopted approach uses Artificial Neural Networks for Finite State Machine learning, allowing the robots to deal with sensorial data even when this data is not precise and correct. Simultaneously, it allows the robots to consider the different situations and states they are inserted in (context detection). This way, it is possible to decide how to proceed with motion control and then execute navigation and control tasks from the most simple ones until the most complex and high level tasks. So, this work uses Artificial Neural Networks to recognize the robots current state (context) at the environment where it is inserted. Once the state is detected, including identification of robots position according to environment elements, the robot will be able to determine the action/- behavior to be executed. The navigation and control system implements a Finite State Machine deciding the current action from current state, being able to identify state changes, alternating between different previously defined behaviors. In order to validade this approach, many experiments were performed with the use of a robotic simulator (Player-Stage), and carrying out tests with real robots (Pioneer P3-AT, SRV-1 and autonomous vehicles) (AU)

• FAPESP's process: 10/02829-4 - NeuroFSM: Learning Finite State Machines using Artificial Neural Networks in order to control autonomous robots and vehicles
• Grantee: Daniel Oliva Sales
• Support Opportunities: Scholarships in Brazil - Master