Hi all, *"Have each face of each cube contain an LED digit display. They are battery powered."*
I would supply all individual cubs by an internal "3-axes" coil and induced or contactles power transfer system... K. 2011/12/17 Brooke Clarke <bro...@pacific.net> > Hi Nevelle: > > Have each face of each cube contain an LED digit display. > They are battery powered. > If one is rolled like a dice an accelerometer (or better set of ball in a > tube sensors) knows where the top and bottom faces are and so they are not > to be turned on. > There's an assumption that after all six have been rolled someone will > push them together into a sort of tight row. > To sense that they are now grouped into a row you use one LED on the four > possible active faces to measure the light. > There are two possible answers, either three faces are open (an end cube) > or two faces are open (a middle cube). > If a cube is an end it blinks an LED on the dark face with the I'm an end > pattern. > If a cube is a middle cube it looks for a blinking LED. > When a middle cube sees a blinking LED it makes note of the code. > It remembers the code it's seen and adds one to it and blinks the opposite > face unless the code is saying "in 4" meaning that the cube seeing this is > the tail cube. > Now each cube has two IDs which is as it should be. After a head end cube > has received an "in 4" message then it knows it's also a tail end cube. > > When the time is displayed the 10 hours digit will be on the face of a > starting cube that's CW from the adjacent cube when looking down on the > string. > If the cubes are numbered 1 to 6 left to right then the 10 hours digit > will be on the 1 (left most) cube and on the front face. > When looking at the back of the string, i.e. cubes 6 to 1. the 10 hours > digit will be on the 6 cube on the left facing to the back. > At this point the cubes assume they know where they are but they also know > that they may be rearranged so . . > cube 1 not only displays the current 10 hour digit it also sends the > position message to cube 2 and makes the light measurements to confirm that > it's still an end cube. > If these fail then the cube un registers both it's IDs and we got back to > the top. > > If the tests pass (cubes are still in order) then cube 1 sends the 1 hour > time to cube 2. Cube 2 displays it and does the "have I been moved test" > as above, if not it sends the 10 minutes message to cube 3, etc. etc. > > It may be possible to detect movement with other sensors, such ball in a > tube making it easier to tell when that's happened. In any case when any > cube knows that it has been moved it can cry out by blinking the LEDs on > all faces in a we're being moved pattern. > > Have Fun, > > Brooke Clarke > http://www.PRC68.com > http://www.**end2partygovernment.com/**Brooke4Congress.html<http://www.end2partygovernment.com/Brooke4Congress.html> > > > > Neville Michie wrote: > >> At this time of the year many people look for frivolous puzzles to solve. >> My puzzle is to design a clock. >> This clock consists of 6 cubes, each has a digit display on one face. >> It does not matter how you arrange them, if they are in a line they will >> display the >> right time. (there may also be a nearby box containing a Rb or GPS time >> standard.) >> A second or two may be needed for them to reorganise if they are moved. >> It must be possible to design them, but an elegant design has eluded me. >> >> Merry Solstice, >> Neville Michie >> >> ______________________________**_________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/** >> mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> >> and follow the instructions there. >> >> >> > ______________________________**_________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.