Team-Sync since December 2024

Our multi-day workshop is just around the corner and promises not only significant progress in a short amount of time but also plenty of team spirit! In addition to the intensive work on our projects, there will be joint cooking and dining to encourage exchange, as well as a relaxed game night for a bit of variety.

Before we kick off our workshop at the end of this week, here is a quick update on our current progress.

Electronics Subteam

New Funkmaster

Do you remember the MCon that we sawed apart at RoboCup? To restore the lost functionality, new ones have been ordered! We had some difficulties with the radio transceiver and its firmware, which is why we also ordered new devices. This not only solves the firmware issues but also eliminates the need to use two radio transceivers at the same time.

Another innovation: We can now measure location-dependent inductance, which significantly improves the movement of our pistons. We detailed this in this year’s ETDP. Additionally, our robots have been repaired and are now ready for the upcoming tournaments – set to get back into action!

Firmware Subteam

Firmware has 25 new radio modules from HBC, which will be picked up next week – this will greatly improve our communication. Data logging on the robot is now much faster, but the SD cards could still be a bottleneck. We made significant progress in dribbling: the new dribbler passed the tests successfully and runs very smoothly.

The absolute highlight is our new radio protocol, which we developed together with the software team. It will be a real breakthrough: precise position data, Kalman filter directly in the robot, and tracking that is more accurate than ever before. Instead of vague error messages, it now provides exact information like position, speed, and even ball control in real-time.

The data rate from HBC has already been increased, and the first parts of the protocol have been implemented – although not everything has been tested yet.

Mechanics Subteam

The mechanics team has arranged small gifts for our sponsors – a nice gesture of appreciation.

left: old dribbler, right: new dribbler

In addition, the coil measurement setup has been further improved, and a new version of the battery holder has been installed. The team is also working on finding more cost-effective manufacturing options for Omniwheels and selecting suitable bearings for the subwheels.

Another highlight: A dribbler prototype has been assembled – an exciting step forward!

Software Subteam

A software team member has written a paper in which a model for the kicker was developed to enable simulations and increase the kicker’s efficiency. Additionally, a new move was implemented that performs robot measurements and checks the driving accuracy of the robots using the field lines.

Besides the radio protocol, which was developed together with firmware, there were also a few experiments with machine learning, and a move was worked on that should enable the robot to dribble backward around opponents. Internally, the software was also revised to make everything even better and more efficient.

Team-Sync since RoboCup 2024

To keep you up to date between events, here’s a mid-update with the biggest happenings since the last RoboCup. Let’s jump right in with the …

Electronics Subteam

Theo with his new oscilloscope

If there’s one thing we’ve learned in recent years, it’s that our radio communication isn’t exactly the best. That’s why discussions about a new radio protocol are in full swing, and a new radio master is also being developed.
Furthermore, optimizations are being made everywhere to improve our efficiency in specific areas. Currently, we are improving our shooting mechanism and our battery management system.
In addition to a new oscilloscope (an electronic measuring device), which makes everyone involved very, very happy, the first steps toward a new generation are already underway.

Firmware Subteam

Meanwhile, the Firmware Subteam has a lot of ongoing projects. One goal is to improve our robots’ internal position estimation so that they can stay in one spot without the camera’s assistance. Currently, the robots move slightly and, so to speak, walk away from us.
We also want to improve how our robots store measurement data, as this data is unfortunately often lost. There’s nothing more frustrating than conducting a good test but only being able to use 60% of the data during evaluation.
The most significant innovation likely concerns dribbling. We’ve long wanted to implement actual dribbling rather than our “ER-Force dribbling,” where we push the ball along the housing. Since this has emerged as a major weakness during recent tournaments, we’re deeply focused on improving it.

Mechanics Subteam

On the left, the old wheels with O-rings; on the right, the new ones with X-rings

The Mechanics Subteam also worked on developing a new dribbler. But that’s not all, as the new generation and robot design are being planned here as well. However, the primary focus was laying the groundwork for the coming months. For example, we’ve equipped our new Omniwheels, which now have more Subwheels, with a new type of rings. This allows the robots to drive more smoothly.
Additionally, due to several damages in the basement, it has been cleared out, reorganized, and cleaned multiple times.
The funniest innovation is probably our new robot stands, as we are not allowed to take our old wooden ones overseas.

Software Subteam

As part of the new “dribbling” vision, the paths that the robots ultimately follow in strategy must be planned. To enable this, an interface between the calculation module and the robot module has been developed.
Additionally, we’re trying to incorporate machine learning into our strategy. For example, parameters are optimized automatically, or future scenarios are evaluated and executed optimally for us.
Anyone who has watched the TIGERs play knows that they have some victory moves. To counter this, we’ve also started working on victory dances of our own.

In addition to all this, the first preparations for the upcoming RoboCup 2025 and Schubert Cup 2025 are already underway. We’ve also already held a freshman workshop and the annual general meeting, where Christoph Schmidtmeier and Arthur Sahm were elected as our new board.

Finally, we wish you all happy holidays and a great start to the new year!