Quote:
Originally Posted by The Mad Professor  If the wheel had not been re-invented then they would still be made of wood!
As for the 'futility' of getting data over a noisy DC line the problems are not beyond a solution, indeed if anything many real world examples of 'fly-by-wire' can be found not only in aviation but automotive applications.
Closer to home some manufactures of traffic control systems, both temporary systems used during road works and permanent installations communicate both sensor and control data over the DC power line. If you think an automotive DC power line is a bit 'Rough' the you should see what the output of a beat up generator looks like 
Sticking with in-car applications a quick search of the web reveals a nifty idea to use the DC power line to inter-connect the various elements of 'ICE' (In Car Entertainment) no rolls of wire for the speakers or getting under the dashboard to run the control head cable back to the CD changer in the trunk. Just put the hardware where you want it and find a live wire. |
I totally and fully agree with you.
In need i am about to find a solution that solves this problem. in involves switching a high load at different frequencies to cause some battery voltage perturbations (no more than 0.1 volt) then with DFT algorythms that we already made it work, we detect those perturbations back.. still some work to do nut we are on the right track.
12th July 2008, 01:03 PM
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