Saturday, 23 March 2013


Playing around with MORSE 0.6, I was tempted to try out basic obstacle avoidance through ROS (Fuerte) nodes on PR2 and ATRV. An obstacle avoidance approach involves a closed loop control system, which is executed by a laser or sonar scan with a 'see the obstacle => turn left', type of algorithm. After some initial hiccups I was able to get it working.

Here are some details of my efforts,

Fig.1. PR2 simulation and its rxgraph
Fig.2. ATRV simulation

in the PR2 simulation, one can see the closed loop of the system in the rxgraph of the ROS nodes.

I am grateful to Michael (kargm at in dot tum dot de) for his help and suggestions. Michael has also made a video of the PR2 obstacle avoidance simulation, .

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