Radio mast navigator - idea :)
April 26, 2010
Hi, just got this idea, and thought perhaps it would interest one of the clever guys out there. Hope is that a vendor will take this up, after a couple of clever LMRians have talked more about the details that I am too stupid to get into :)
It is a board that always shows you "north" - a fixed point anyhow. Purpose is to navigate, for example in a football match.
Turn on board, and it has a radio, like a human-music-radio-thingey. Only it does not play music, it has the ability to tune in to a radio station, but only listens for the carrier wave.
It simply has a pointing areal, is "a crap radio that needs to be alligned to the sending mast", and an 0-5V signal is the
output, more or less, after how strong the recieved signal is.
On the board we place 3 such tuners. (I am sure they can be bought/made for nothing, no?)
The antennas on them points to each direction, sort of like a Mercedes logo.
The board has a small processing / logic part that compares all 3.
It finds the 2 strongest recievers, and according to their individual levels, the point between them is where "north" is.
Output is a direction (0-360 degrees), always fixed towards the radio mast.
There are more complex ones in the sales, where you have to place "the sending masts" yourself. but how cool is that, when you can just tune in to a radio station?
I think such a module could be build cheap, compared, and I think most roboteers would really like a sense of direction, cheap and easy!