Been thinking about what you said, or the way you said it, and observational errors I have made in the past. The phone has to be able to resolve the difference between 'tilt' and acceleration. If you make it 2-D by mounting it to a grocery cart, as long as there are no wheelies, the phone will not have to resolve that difference - it will work. If the sensors were located at the ends of the phone, with pure acceleration both vectors swing together: magnitude, direction... everything. If there is tilting going on there will be a difference during the motion that initiates tilt. That feels like one of those interpolation things where you want to operate on the difference before you digitize the information from each sensor.
When you look at the cost to implement an accelerometer array and the scale of the mobile phone market and the cost (battery and other) of GPS and the ability to calibrate out differences in sensor position due to manufacturing tolerances (and thermal expansion?), it should be have a place. I just don't know if anyone is doing it. The steps are Micro Machine expertise with an eye toward making elements that provide good linearity over the entire range of interest (cascaded sensors?) and difference signal ports so that they can array well to resolve the difference between rigid body tilt and acceleration. This looks like 3+ years to me, unless someone has all the pieces or recognized the market long ago and is already working on it. On Jul 11, 3:19 am, whitemice <[EMAIL PROTECTED]> wrote: > Sounds great, I cant wait to see it in action. > > Clearly GPS and Cell ID aren't enough for many *ideal* applications, > and it will be fascinating to see what's possible when APIs to mix > these all together become available. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Discuss" group. To post to this group, send email to firstname.lastname@example.org To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/android-discuss?hl=en -~----------~----~----~----~------~----~------~--~---