This years task of the system engineering project was to evacuate or to rescue two robots from rooftops. We blended the words robot and rescue together. With an abbreviation out of the greek alphabet (ρ = rho) originated the name RhobesQ.
In the beginning of the project one of our colleagues built his idea of the robot with Lego technic. We were all excited and saw that it could work. He laid the foundation for the composition of our robot.
The first thought for the movement was with tracks. After building a prototype of a simple propulsion it was evident that for our case this method wasn't ideal. The problem was a lumbering driving behavior and a limited steerability. The conclusion was that the movement had to be realized by two separatly driven wheels. For stabilisation there were two freely movable balls built-in. For the movement on the sheet metal two driven rolls are used.
The clutch consists of four linear units and two motors. The linear units are being used to tilt and to raise/lower the clutch. A motor is used to grab the pipe the other one is used to move the pipe back and forth.
The link of the pipes consists of a cone in which a magnet is located. Both robots are interlocked with cones and are held in place by magnets.
The pipe is identified by a microcode. The code is recorded with a camera and analized by a Raspberry Pi. The position on the table is determined by sensors and lines on the table.
To communicate between both robots WLAN is used.