There are a lot of interesting use cases for sub 1m accuracy and/or indoor positioning on a mobile phone – hence I am following your ideas with interest.
Your proposal as I understand it: If the communication API (at either the server or the client side) gives you access to signal strength and packet delay information, you may be able to get some idea of distance (but not direction?). This estimate would become less reliable as more walls and furniture get in the path of the signal. Communicating with two Wi-Fi transmitters (if this is possible on the client side?) with known positions and coverage areas, would give you two or more overlapping regions where the handset might currently be located. By fixing your results along known walking routes and integrating path data (from the accelerometer) you might be able to guestimate a user’s current position. With all these uncertainties, I think claims of sub 1m accuracy are overly optimistic (but not unachievable), although such a system could have other benefits. To the original question: the Android Wi-Fi API has not yet been released, so I can’t comment on how well your proposal might work on a real device. Also, I am also investigating using accelerometers for estimating position *inaccuracy* for my Snowball platform, which has significantly lower accuracy requirements: http://blog.zedray.com/snowball/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Discuss" group. To post to this group, send email to email@example.com 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 -~----------~----~----~----~------~----~------~--~---