QUT Robotics Australia

Automated Restocking



Competition Brief

Automations’R’Us mass produces many different styles of robots using an automated assembly line however at present all of the materials needed during the manufacturing process need to be moved from their warehouse to the assembly area manually. Automations’R’Us have hired you and your team to try and produce a robot that is capable of automating this process as well, however they have also hired other teams and will be rewarding only the team that builds the most efficient prototype.

Problem Description:

Your robot must start at the assembly line which will have mats of different colours marked out which is where certain materials need to be placed for the assembly line. In order to get to the warehouse there will be a black line marked out which will lead to the warehouse however due to the constant activity going on in this plant the path will not be set so the robot needs to be able to follow any path that may be set up on the testing day (you will be supplied with some tiles with examples of paths that the actual path could resemble, for testing purposes). The warehouse is a round structure which has a floor of a single colour. In the warehouse there will be a few containers filled with different materials. Not all of these containers will be needed at the assembly line and as such the robot can deal with these in whatever manner is necessary. The containers that are needed will have different coloured mats to identify them that correspond to the coloured mats back at the assembly line. The robot must pick up these containers and place them on the corresponding colour mat back at the assembly line in the specified order starting from the colour closest to the starting mat. The robot will have completed the task when it has moved all of the containers to the correct mats.

The Field:
The robot will begin on the Start mat and proceed across the three coloured pads and find the order for collecting the cans, in the below diagram the order is blue, red then green. Stage 1 will commence after the coloured mats and lead towards the circular field of Stage 2. Stage 1 represented below as a simple curve, will be a more complicated black line path which will not be known by the contestants until the day of testing.

Once Stage 1 has been completed the robot will be inside Stage 2 consisting of a large circular field of one colour. Once inside the robot has to search for the correct can which can be identified by the mat it will be sitting on, so using the diagram below the order would be blue, red and then green. The robot must return these cans to the corresponding coloured pads at the start, by navigating through stage 1 again.The tiles that will be used to make it are attached in appendix.

Note: There will be dummy cans which have no mat and should not be collected.

An easier first round will have a reasonably simple Stage 1 and only the cans needed to finish the task in Stage 2.

The second round will have a more complex Stage 1 and a few dummy cans which should not be collected. The cans will also be arranged in tricky ways such as being in a straight line.

Points System:
The team with the highest amount of points will be declared the winner. In the event of a tie, the teams will compete in a new course until a winner is found.

Base Points:
10 points will be awarded for each tile navigated from the start tile to Stage 2.
20 points will be awarded for each correct coloured mat is found (in order).
20 points will be awarded for each correct can that is secured by the robot.
20 points will be awarded for each tile navigated from Stage 2 to the corresponding mat with the correct can.
100 points will be awarded for all cans being placed on their corresponding mats in the correct order.

Bonus points:
20 bonus points will be awarded to the team that completes Stage 1 from the Start tile to Stage 2 in the shortest amount of time.
50 bonus points will be awarded to the team that completes the entire course in the shortest amount of time.
25 bonus points will be given for not touching the dummy cans.
5 bonus points will be awarded to the most aesthetically pleasing robot.
5 bonus points will be awarded to the easiest robot to replicate.

Robot Limitations:
1. Only one Lego NXT Brick can be used, and the sensors that come with that brick.
2. Must be fully automated (eg no human inputs).
3. Can’t use code directly from internet (eg must be able to explain how code works)
4. Maximum robot size: 30cm diameter.

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