When your job is to sit in an office all day, controlling a 15-ton robotic arm, things can get kind of boring. Thankfully, some ingenious operators decided to fool around with the arm at their disposal and managed to implement Wiimote controls. Judging by the YouTube video after the break, taking the thing for a spin with the Wiimote looks like it works quite well, as the gigantic yellow claw pretty much follows the movements of its operator exactly.
If we weren't sure the giant claw cost more money than we could ever hope to see, we'd suggest playing the world's largest crane game, or a bit of Let's See How Far We Can Throw This Minivan.
The Wiimote's accelerometers (motion sensors) are being used to control this, not the infra red sensor, so no sensor bar is needed. But I agree, it could be faked.
I'm a controls engineer, this is definitely a simple hack if you know how the accelerometers return info to your computer assuming the claw is controlled electronically and not mechanically.
Odds are though, this thing was controlled with a couple joysticks in the first place which will return values similar to that of the wiimote and all the engineer had to do was switch the feedback device to the wiimote. Depending on how well written the control engineer's software was written in the first place, this could implemented in a few hours of coding and debugging.
Correction: change the word "feedback" to "input". The feedback would be from sensors on the pneumatic pumps which would allow for a better, more accurate reflection of the user input.
Between the music and the guys voice, the video sounded like a dating service video, real estate show, or possible some sort of Jacques Cousteau-esque documentary.
I've had some fun with the Wii, but I wouldn't want to hook it up to something like this... I've had too many instances of the cursor disappearing from the screen, following by it spastically jumping around the screen to want to see a giant robotic arm do the same.
And no, I was not moving my arms frantically around at the time. I was just waiting for the cursor to come back.
Notice this isn't using a sensor bar? So there would be no problem with jumping about. Your problem is probably something to to with the Wiimote seeing other sources of light (ie a window on a sunny day). The jumping about is nothing to do with the accelerometers.