On a sunny day (Mon, 30 Apr 2012 13:36:14 -0600) it happened hamilton wrote in :
Thanks! I have downloaded the pdfs, maybe I buy one just for fun, could be an other PIC project, and combine with my fluxgate compass... Years of fun ahaead... Maybe needs a more powerful computah, one of those recent Linux based boards perhapds (display maps on LCD etc). ;-) I would not use FAT filesystem ....
Yes, it's definitely one of those "works in theory but..." applications. But in theory, it would work. ;-) In practice, it could be good enough to work thorough the "urban canyon" effect for brief GPS outages, although the addition of a simple fluxgate compass would help tremendously.
-- Rich Webb Norfolk, VA
On a sunny day (Mon, 30 Apr 2012 13:36:14 -0600) it happened hamilton wrote in :
PS I ordered this one:
Those systems also use the speed/distance information from the wheel sensors, so the can be pretty accurate. A bit like a hi-tech device called odometer ;-)
-jm
If you can be pretty sure that there's no skidding going on, an odometer and a steering-position sensor should be able to mostly or completely replace gyros, accelerometers, etc.
Of course, the more sensors, the merrier.
-- My liberal friends think I'm a conservative kook. My conservative friends think I'm a liberal kook. Why am I not happy that they have found common ground? Tim Wescott, Communications, Control, Circuits & Software http://www.wescottdesign.com
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