Prediction of indoor level and location using a three stage process

摘要: A mobile computing device 160, 180 may be localized in an indoor area based on the strength of wireless network signals accessible from different access points. The localization performed stages. In a first stage, general geographic area, such as "island", which is located identified. second altitude or building level third position identified determined. At least some these stages utilize information received at surrounding points 412-418, 510-518.