a Virtual Robotix Network Team

Indoors autonomous quadcopter (Chris Diydrones)

From the description: "The robot is equipped with an IMU, camera, and laser scanner with deflective mirrors. All computations are performed onboard using a 1.6GHz atom processor. The robot is able to navigate autonomously in indoor or outdoor, GPS-denied environments.

A SLAM module with vision based loop closure allows the robot to map large-scale, multi-floor environments.A sparse 3D map is generated on the robot based on sensor data, enabling high-level planning and visualization.

An RRT* based planner provides an anytime planning solution that fits the computational constraints of the robot. This planner also enables online re-planning and obstacle avoidance.

An LQR optimal controller with external force compensation enables reliable autonomous flight in highly constrained environments, such as hallways, doors, and windows. The robot is able to track the high-level plans accurately."

From I Love Robotics: "More quadrotor action from the team at UPenn (Shaojie Shen, Nathan Michael, and Vijay Kumar). A previous video of their earlier work is here.

ROS seems to be helping with the team's productivity, but I am still looking for a paper to go with these videos for more details. Once again thermodynamics and energy storage look like the biggest performance limits facing quadrotor aircraft."

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