Figure 2From: Autonomous indoor wayfinding for individuals with cognitive impairmentsArchitecture and system interaction of the wayfinding prototype. Architecture and system interaction of the wayfinding prototype. (1) By sensing the RFID tag, the user PDA determines the current location of the user. (2) Location information is sent over GPRS to the server. (3) The server decides which photo to send to the user.Back to article page