Robot-sumo, or pepe-sumo, is a

sport Sport pertains to any form of competitive physical activity or game that aims to use, maintain, or improve physical ability and skills while providing enjoyment to participants and, in some cases, entertainment to spectators. Sports can, ...

in which two

robot A robot is a machine—especially one programmable by a computer—capable of carrying out a complex series of actions automatically. A robot can be guided by an external control device, or the control may be embedded within. Robots may ...

s attempt to push each other out of a circle (in a similar fashion to the sport of sumo). The robots used in this competition are called sumobots. The

engineering Engineering is the use of scientific principles to design and build machines, structures, and other items, including bridges, tunnels, roads, vehicles, and buildings. The discipline of engineering encompasses a broad range of more speciali ...

challenges are for the robot to find its opponent (usually accomplished with

infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ...

or ultra-sonic sensors) and to push it out of the flat

arena An arena is a large enclosed platform, often circular or oval-shaped, designed to showcase theatre, musical performances, or sporting events. It is composed of a large open space surrounded on most or all sides by tiered seating for spectators ...

. A robot should also avoid leaving the arena, usually by means of a sensor that detects the edge. The most common "weapon" used in a sumobot competition is an angled blade at the front of the robot, usually tilted at about a 45-degree angle towards the back of the robot. This blade has an adjustable height for different tactics.

Robot-sumo is divided into classes, fought on progressively smaller arenas:Unified Robot Sumo Rules (English)
/ref> * Heavy-weight. Standard in the National Robotics Challenge. Robots may weigh up to 125 pounds (56.8 kg) and fit in a 2-foot cube (61 cm). * Light-weight. Also standard in the National Robotics Challenge. Robots may weigh up to 50 pounds (22.7 kg) and fit in a 2-foot cube (61 cm). * Standard class (sometimes named Mega-sumo) robots may mass up to 3 kg and fit inside a 20 cm by 20 cm box, any height. * Mini-sumo. Up to 500 g mass, 10 cm by 10 cm, any height. * Micro-sumo. Up to 100 g mass, must fit in a 5 cm cube. * Nano-sumo. Must fit in a 2.5 cm cube. There is also Lego Mindstorms NXT sumo robots, in which NXT robots compete. The robots usually have to fit in a one-foot cube. Classes are further divided into remote-controlled and autonomous robots. Also, there might be a tethered category (varies) Sumo robots are built from scratch, from kits or from Lego components, particularly the

Lego Mindstorms Lego Mindstorms is a hardware and software structure which develops programmable robots based on Lego building blocks. Each version includes computer Lego bricks, a set of modular sensors and motors, and Lego parts from the Technic line to ...

sets.

References

External links

FSI-All Japan Robot-Sumo TournamentJSumo - Unofficial Sumo Robot Web SiteMiniSumo wiki
A new wiki aimed at the mini class of sumo, the site also host a relate
forum
for builders.
Robot Tutorials for BeginnersOfficial French RulesFull and detailed presentation of a robot sumo by students of Baronnerie,Angers (France).Autonomous robots, maze solvers, mini sumo forum
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Sumo Robot Parts Tutorial

Competitions

RoboChallenge
Biggest robotics competition held in Bucharest, Romania
RoboCore WinterChallenge
Biggest robotics competition held in Brazil
Competencia Robotica
Biggest robotics competition held in Valparaiso,

Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east a ...

.
BattleLab Robotica
Annual competition in Cluj-Napoca, Romania
International RoboGames
Annual competition with global sumo contestants
Istrobot
Annual robotic competition in Bratislava held Mini-Sumo category until 2011
Milford Autonomous Robotics Competition
Annual competition near Cincinnati, OH
Robofest RoboSumo CompetitionRobotChallenge
Annual robotic competition in

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with Standard-, Mini-, Micro-, Nano-, Lego- and Humanoid-Sumo
Official French TournamentRobot sumo Angers
Annual French robotic competition in

Angers Angers (, , ) is a city in western France, about southwest of Paris. It is the prefecture of the Maine-et-Loire department and was the capital of the province of Anjou until the French Revolution. The inhabitants of both the city and the pr ...

Southern Illinois University Edwardsville's Robot-Sumo CompetitionBalticRobotSumo
Annual Standard-Sumo, Mini-sumo and Roomba-Sumo robotic competition in Latvia, Lithuania and Estonia. Instead it is lately held annual together with Estonia
Robotex
and later will be Joined with other Baltic international level national annual competition
Latvijas Robotikas Čempionāts
and Lithuania
RobotiadaRobot-SM
The Swedish Robotics Championship with Standard- and mini-sumo.
SumoRobotLeague
Annual North American Sumo Robot tournament with smaller regional tournaments.
Baronas 2017
National Robotics Competition in Indonesia, Sumo Category 2017
Robotic Arena
Annual robotic international competition held in Poland including Mega-, Mini- and Nano-Sumo, among other competitions.
Roboton.io
Online virtual robot competitions. Robot combat Sumo