The "pucks" report the float's positions to the Parade Central tech. To my knowledge, that is ALL they do. He has a computer screen with the entire parade route, with all pertinent floats displayed. I believe that would be all DDCT floats, and only the larger Spectro floats. From there, he can see where the parade is visually...in addition to three video screens showing the parade route. One of the tracks for the music is also the DTMF track (like timecode, but an audio track of basically telephone dialing tones that work as timecode). This DTMF track gets sent out from Parade Central through the Castle antennas. Each float picks up this RF timecode track, which allows it to sync to the park audio via its internal audio computer. Each float has its own computer that plays the music, it just takes direction from the timecode telling it where it should be.
The "pucks" do nothing more than reporting on a computer screen in Parade Central, they used to do more....but that's a different story. Parade managers will never get any parade direction from the "pucks"...except through the tech who can call over any problems that he forsees.
Hope I helped...