Latest entries written by Johannes Rothe

Robocup 2016 in Leipzig - the story begins

We made it to Leipzig yesterday. After watching the germans reach the quarterfinals, we enjoyed the beatiful sunset at our lake. Today we did a sightseeing tour through Leipzig by Bus and visited the very impressive Monument to the Battle of the Nations called 'Völkerschlachtdenkmal'. Now we are back to hacking at the lake...

Posted by Johannes Rothe on June 27, 2016 19:00

Bonding Hackathon 2015

Together with Bonding we hosted the Bonding Hackathon for the third time in a row. 47 students split up in small teams and hacked through the night.

The scenario was a nuclear catastrophe and the teams had to bring nuclear fuel rods from the reactor to some decay tanks. They got points by successfully delivering a fuel rod to a decay tank. The decay tanks were hidden and randomly placed on the field. We also placed random obstacles on the field. The better the tanks were hidden the more points you got, from 1 to 3 points. The tanks and the reactor were identified by AR-tags. The teams had to rescue 3 fuel rods, so there were different strategies. Either to find the 3 point decay tank, which is hard to find, or just use the 1 point decay tank. The scenario was represented in our simulation based on gazebo, so the teams could run through a lot of testing cycles, before testing on the real hardware.

We offered the students first-hand knowledge and experience in robotics, whilst Bonding took care of them with free food and soft drinks during the whole night.

The sponsors (Bosch, Continental and IVU Traffic Technologies) provided some exiting prices for the top 3 teams. The first place won a trip to the Bosch ConnectedWorld Conference in Berlin. Alltogether it was a great event and we look forward to next years Bonding Hackathon.

Here are videos of the final and the winning teams skill in the simulation:

Posted by Johannes Rothe on November 3, 2015 11:16

We won Robocup 2015 in the Logistics League!

We won Robocup 2015 in the Logistics League! Although having some problems during the first games of the competition we were able to stabilize our exploration for the final and even managed to deliver products correctly. Team Solidus proved to be a worthy opponent and achieved only 8 points less in the exploration phase (you get 8 points for one explored machine). The end result was 46:16 for Carologistics.

The new setup with new machines turned out to be a big challenge and we hope to speed up our production for the next year. But for now we will celebrate the first place before returning to Germany on Friday.

Team members from left to right:
First row (kneeling): Johannes Rothe, Matthias Löbach
Second row: Tobias Neumann, Tim Niemueller, Sebastian Reuter
Third row: Nicolas Limpert, Victor Mataré, Frederik Zwilling
Fourth row: Randolph Maaßen
Missing in this picture: Prof. Dr. Alexander Ferrein, Prof. Dr. Sabina Jeschke, Prof. Gerhard Lakemeyer, Ph.D.,
Dr. Daniel Ewert, Mostafa Ashraf, Sebastian Schönitz

Posted by Johannes Rothe on July 22, 2015 12:00

Second competition day

The competitions of the second day are over. We are slowly improving game performance, but are still lacking in scoring. The afternoon and evening are used for fixes and new features. We are now preparing for another training game to stabilize all components.

Posted by Johannes Rothe on July 20, 2015 17:00

First competition day

Yesterday we had our first competition day. We did score less than we would've wished, but managed not to lose one. We are optimistic to score better tomorrow though if we manage to fix our worst issues.

Posted by Johannes Rothe on July 19, 2015 17:00

Welcome to China

We arrived safely in Hefei and made first contact with Chinese culture. We are currently assembling the robots for the competitions which start on Sunday.

Posted by Johannes Rothe on July 17, 2015 17:00

We did it!

More infos coming soon...

Posted by Johannes Rothe on July 24, 2014 13:14

Round Robin/ Playoffs (Day 2)

Day 2 of the Festo Logistics League is finished. The round robin phase concluded after the first 2 games. We won the first game versus the Bavarian Bending Units from Germany with 90-65. The Second game versus the team RBQT from France we won 91-10. We still had to face problems regarding low level skills and some vision problems. Because of that we threw away some final products and stopped productions.

But apart from the lower level problems the top level agent behaviour always knew the right thing to do. Our system could handle the problems and detect possile solutions autonomous. Because of that we finished the group stage as group first!

In the afternoon the playoffs started. It is organized in a group - the first 2 teams will play the grand final, the 3rd and 4th will battle for 3rd place. In the first game of the playoffs we won 109-10 versus the local team All Sparks from Brazil. The next game versus team Solidus from Switzerland we won 120-13.

After the games we attented in the MPS challenge. With a dynamic approach to the problem we also won this technical challenge. Read and see more about it in the official blog post.

More and more little but very important failures are getting fixed and so we are going confident into the second day of the playoff.

Posted by Johannes Rothe on July 23, 2014 11:53

Carologistics win the MPS Challenge

The task of the MPS (modular production system) technical challenge was to approach a shelf, pickup a container, take it to the machine which places a cap on top, pick it up on the other side and take it back to the shelf. Similar machines will be used next year for the RoboCup Logistics League.

The task was solved by a dynamic approach to detect the ARTags on the shelf and the machine for an exact alignment.

See the video below:

Posted by Johannes Rothe on July 23, 2014 09:03

Round Robin (Day 1)

Day 1 of the round robin phase of the Festo Logistics League is finished. The first game versus Team Solidus from Switzerland we won 80-18. The second game versus Team Baby Tigers from Japan we won 101 to 10. But we have to say these results don't really show the big problems we had in the games. One reason was a really disrupted light detection because of the sun shining through the colored flags which are hanging in the venue. Also some low level skills had some minor erros which obviously have a big effect on the whole game. And because of that we couldn't perform as well as in the training games on the setup days.

After the games we attented in the navigation challenge. It was a happy end of the day, because we won the challenge! Read and see more about it in the official blog post.

After the challenge the field was free for all the teams to fix the problems and test them. The vision got tuned and we also found some bugs in the skills and agent. We only had a small time frame to test the whole system because the last busses are leaving the venue at 11pm. So we have to see in todays games if the whole system will perform better to qualify for the playoffs.

So keep the fingers crossed and stay tuned to the blog. You can follow our twitter hastag at #Carologistics. LIVE results of the games can be found here.

Posted by Johannes Rothe on July 22, 2014 10:01

RoboCup 2014 has begun

The RoboCup 2014 is taking place in Joao Pessia, Brasil. 10 teams are battling for the Cup in the Logisitics League sponsored by Festo. Two teams are from Germany - The Bavarian Bending Untis from Munich, and ourselves, Team Carologistics from Aachen. Besides that, 3 teams from Brazil, one from Japan, Egypt, Mexico, Switzerland and one from France. As strong changes have been made to the rulebook as well as the playground - the cards are re-shuffeled. (Please see the official league homepage for more details.) This year, the teams have to show that their robots are able to avoid collisions and track their own position on the large playground. As most teams have relied on odometry only to track their position and followed predefined paths without collision avoidance this means a large challange for them.

Stay tuned for more infos on this Blog.

Posted by Johannes Rothe on July 19, 2014 14:53