Reinforcement learning is an active research area with a vast number of applications in robotics, and the RoboCup competition is an interesting environment for studying and evaluating reinforcement learning methods. A known difficulty in applying reinforcement learning to robotics is the high number of experience samples required, being the use of simulated environments for training the agents followed by transfer learning to real-world (sim-to-real) a viable path. This article introduces an open-source simulator for the IEEE Very Small Size Soccer and the Small Size League optimized for reinforcement learning experiments. We also propose a framework for creating OpenAI Gym environments with a set of benchmarks tasks for evaluating single-agent and multi-agent robot soccer skills. We then demonstrate the learning capabilities of two state-of-the-art reinforcement learning methods as well as their limitations in certain scenarios introduced in this framework. We believe this will make it easier for more teams to compete in these categories using end-to-end reinforcement learning approaches and further develop this research area.

rSoccer: A Framework for Studying Reinforcement Learning in Small and VerySmall Size Robot Soccer

Mobile robot control requires precision and accuracy to react to unpredictable situations. However, it is non-trivial to design a low-level controller for each wheel that combines fast response and stability in the presence of disturbances. The Proportional-Integral (PI) controller algorithm is the most used technique for DC motors; however, tuning these controllers can become a time-consuming task depending on the number of robots and tuning methodology. We propose a novel telemetry-based strategy to find suitable PI controller parameters more quickly using accurate motor models of the omnidirectional mobile robots obtained from an on-site data sampling mechanism. We evaluate our approach on an omnidirectional robot designed within the RoboCup Small Size League (SSL) competition rules. The results compare the proposed method with a based on Quantitative Feedback Theory (QFT) approach. Our strategy improved on average the robot's performance by 17.95% when using Integral Absolute Error (IAE) and by 12.75% when using Integral Squared Error (ISE) criteria.

A Telemetry-based PI Tunning Strategy for Low-level Control of an Omnidirectional Mobile Robot

Session 2: Datasets, Simulation, Systems

poster

[![](https://assets.underline.io/uploads/markdown_image/1/image/21d13e03491d7e9acf6b8c46c7979c25.png)](https://docs.google.com/spreadsheets/d/1SCDDfkQk7es4J6RULKHVx1RzbB0Mutla--Sle5SVfb0/edit?usp=sharing)

**RoboCup 2021 will be Worldwide!**

We are excited to announce that RoboCup 2021 is a fully remote event with RoboCup competitions and activities taking place all over the world. Everyone is invited to participate in, or observe, the [competition leagues](https://2021.robocup.org/leagues) and the [symposium](https://2021.robocup.org/symposium)!

**RoboCup Symposium**

The 24th RoboCup International Symposium will be held in conjunction with RoboCup 2021 in a purely online setting. Scientific papers will be presented reporting innovative, original research with relevance to robotics and artificial intelligence. Within the described scope of topics we also encouraged submissions of high-quality overview articles, papers describing real-world research, and papers reporting theoretical results. In addition to the main track with regular research papers, there will be a special track focused on systems, data, and benchmarks featuring papers describing novel, open-source hardware and software systems, as well as datasets and benchmarks relevant to the community. In addition to research paper presentations, the RoboCup Symposium 2021 includes keynote talks by Dieter Fox, Jean-Paul Laumond, and Stefanie Tellex, and several interactive sessions.

**RoboCup Introduction Video**
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Registration is required for entrance into RoboCup 2021. <br><br>
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* Major Faculty or Symposium Faculty - US$50
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RoboCup 2021

The 24th RoboCup International Symposium will be held in conjunction with RoboCup 2021 in a purely online setting. Scientific papers will be presented reporting innovative, original research with relevance to robotics and artificial intelligence. Within the described scope of topics we also encouraged submissions of high-quality overview articles, papers describing real-world research, and papers reporting theoretical results. In addition to the main track with regular research papers, there will be a special track focused on systems, data, and benchmarks featuring papers describing novel, open-source hardware and software systems, as well as datasets and benchmarks relevant to the community. In addition to research paper presentations, the RoboCup Symposium 2021 includes keynote talks by Dieter Fox, Jean-Paul Laumond, and Stefanie Tellex, and several interactive sessions.

Felipe B. Martins

2

SHORT BIO

Presentations

rSoccer: A Framework for Studying Reinforcement Learning in Small and VerySmall Size Robot Soccer

A Telemetry-based PI Tunning Strategy for Low-level Control of an Omnidirectional Mobile Robot