January 22nd, 2009
Object tracking robot
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This is an advanced robotics project, the robot arms follows a moving object, anyway that’s the idea. The arms moves a little sloppy, it surely isn’t in the final stage of development, but the author explains what problems encountered. The motion is detected using IR leds and receivers, and subtracting the ambient light from the readings to get the reflected light from the object which is tracked.
If you are interested in motion tracking this is a good place to start, my opinion is that the analog part needs to be reviewed, the IR leds should be mounted inside a tube, otherwise interferes with the reflected light and reduces the sensibility.
Object tracking robot: [Link]


January 23rd, 2009 at 12:50 am
Couldn’t you use a polarizing filter over the LED element? A tube would probably cheaper, I suppose.
January 23rd, 2009 at 12:56 am
I guess the project needs a bit more developing, but it’s a nice start, and I’m sure the author will improve his work.
January 23rd, 2009 at 8:50 am
The filter won’t work, since you must have reflection, the problem is with the direct IR comming from the LED, a small tube would be the best solution.
January 24th, 2009 at 7:03 am
cool tracking arm.