Let's Make Robots!

Search and Rescue

This challenge is inspired by a local event, where kids are remote controlling robots through a maze like course to find a small Teddy bear, grab it (with velcro) and drag it to the start point. But is this possible to do autonomously? I'm sure it is! 

So here is the challenge: build an autonomous robot that is capable to drive through a maze like environment, find a small Teddy bear, grab it by what ever means and bring it to the starting point. The maze can be made out of card boxes, books, whatever you have handy and it should have at least 4 turns before the position of the bear and the hallways width should be at least 12". The robot shloud be smaller than 12" and can't look over the walls. You can build a 2 wheels, 4 wheels rover, biped, quad, hexapod... anything you like. No remote processing is allowed, that means no link to an external computer is allowed. You can't moddify or add anything to the Teddy bear to make it easier detectable, but you can wrap around it a velcro collar so the robot may grab it easier. Make a video of your robot rescueing the Teddy bear and post a link to it here.

The winner will be decided by a community vote, still need to figure that out how's going to happen, a poll might work, but I don't see a way to add it to the challenge.

There will be prizes available:

- a µBotino V3 kit and a USB-serial cable

- a Robot Builder's Arduino kit and a USB-serial cable

- a Robot Builder's Shield V3 kit and a mini Breadboard


Update, Sept. 26th, 2011:

Since no robot was entered by September 22nd, I have granted an extension of the end date to September 25th. Only one robot was completed by this time, by Sebathorus, so I declare it winner of the First Place. But, since there were others who expressed interest in participating, I am going to make a second extension, until the end of the month. I hope at least 2 more robots to be entered. Come on people! I've got some kits to give!


Update, Oct. 1st, 2011:

The main reason behind this challenge was the old robot builder's dream: robot, fetch me a beer. I thought to bring it to you guys step by step. First, build a robot that is able to find an object and retrieve it. Best built is with a gripper and sensors that scan left-right and look for the object. After you did wall following, try to add encoders and remember your path and after you got the object, get back on the shortest path (maze solving). Build the gripper strong enough so it can pick up a beer can as the retrieved object. Add a voice recognition module and say the magic words: Robot, fetch, a beer! My MiniEric robot can almost do that (can lift only an empty can, not a full one). Can yours?

I removed the end date for this challenge, it will be still ON until the first robot that is able to fetch a (full) beer can left on the floor is demonstrated. No maze required, just house navigating, have the beer on the floor in front of the refrigerator in the kitchen and start the robot in front of the living room couch. The robot must find it's way through house clutter. Post the video and code for the robot in your robot page here on LMR. Prize? I don't know yet, but it's going to be something in the $100 range. Perhaps something you need to have for your robots... Oh, voice recognition module is not actually required, you can just press a button on the robot. In this case, you can win a voice command module (I have 2 of them).

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

Patrick already asked about line following. As the competition was described initially, you should use wall hugging not line following. It's even simpler and you already have the Sharp sensor required for that. No need to buy more parts unless you want to do extra stuff not related to this challenge. Do a Googe search for wall following tutorial and you should be fine. The robot can drag the Teddy bear to the exit, but it has to lift up the drink, as this is a more sophisticated challenge. I suggest you do the first challenge and only after a successful run you start to think about improvements and go further. And get the Arduino Robotics book, you need it (I'm not afiliated with them, I just consider it to be a verry good introductory book in robotics). 

I mean my new robot is in halfway

I, Aaronsuper1, hereby take on your "Search and Rescue Challenge" and will not stop untill I have submitted my entry.

Will I still receive a prize if I my bot navigates a maze to the drink or will I receive a prize if my bot gets the drink from the fridge?


Thanks for such a great challenge! 

http://www.youtube.com/watch?v=F_eWtn139Cw Bottle filled with water and robot follows the light.
No succesful, i think ;( But entry still
Can i use a coke instead of beer? I'm under 18 ;D

Use a Coke, Pepsi or what ever soft drink you indulge. It has to be a drink. And I want to see you drink it after the robot brings it to you!


Or can i use anything?

I was gnna ask the same question but was to shy to do it...lol!

Is it still open now? Are you still gnna give away a ubotino V3 or Robot Builder's R-duino?