Indoor navigation system using optical mouse sensor and smartphone

In this paper, we propose a low cost indoor positioning system that uses an ADNS-2610 optical flow sensor from an old Compaq PS/2 optical mouse. We built a prototype for a navigational kit around the proposed indoor positioning system. The navigational path is determined by collecting displacement data from the optical flow sensor and composing the same with the rotational data from the inbuilt magnetometer of an Android based smart phone. The user's position is then updated on a map accordingly. The collected displacement data is initially sent to an Arduino microprocessor, which in turn sends this data to a Bluetooth module for onward transmission to the Android based smart phone. The proposed system has wide applicability not only in accurate positioning but in accurate odometry.