28 Aug

Received signal strength

Xin Chen

Start a simple test run with our setup. we have an TX on top of the roomba and two RX on the edge of the foam, TX is transmitting signal at 915MHz. We can see from the video, as the robot is approaching the RX, it received signal with higher power, which make sense intuitively. The attached is the t...

24 Jul

Mocap calibration

Xin Chen

Calibration is essential for optical motion capture systems. During camera calibration, the system computes position and orientation of each camera and amounts of distortions in captured images. Using calibration data, Motive constructs a 3D capture volume. This video illustrates how to calibrat on...

17 Jul

Light interference

Xin Chen

I investigated the light interference in our lab this week, from this picture, we can clearly see the two bright light dots at the center of the floor. On camera 4, the net is also included in the view of the camera, that's why we can see a bunch of light dots on that view. The two images are the sa...

17 Jul

Running Roomba with motion cap

Xin Chen

SEtup the system with roomba running while motive is capturing the motion of roomba. We can see it's precisely capturing the motion. Next task for me is to create a stage for roomba operation and capturing the motion with 3D map. We decided to do this on weekend since we need to turn off most of the...

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