[OSM-talk] Vehicle Tracking Systems

Jon Burgess jburgess777 at googlemail.com
Mon Apr 2 18:54:18 BST 2007


On Mon, 2007-04-02 at 17:15 +0100, Robert Scott wrote:
> On Monday 02 April 2007 12:34, Phil Winstanley wrote:
> > Just curious, anyone out there working on vehicle tracking systems?
> 
> Depends what you mean by vehicle tracking systems.
> 
> Coincidentally enough, just this minute I've been walking around, scratching 
> my head and considering what would be involved in building a generic position 
> deduction framework which could accept input from any source of 
> positioning 'hints', take into account any sources of error and give the best 
> possible guess it can on your position.
> 
> Such hint sources might include GPS, car odometer hookup, accelerometers, 
> gyroscopes, cameras with image recognition algorithms...
> 
> The obvious first step would be attaching an error value to every single 
> number in the simulation and calculating those in parallel to the positioning 
> calculations. But then you'd possibly need quite complex heuristics for what 
> to do when several of your sources disagree to a degree greater than the 
> error margin.
> 
> I imagine papers have been written on this subject, but I have yet to find 
> them. Any input on this ugly brain-dump of mine would be welcome. 
> 
> 

Take a look at Kalman filters and be prepared for some complicated
mathematics:

http://www.google.co.uk/search?q=kalman


	Jon






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