A Power Saving Scheme for Smart Phone GPS Tracker Using Kalman Filtering

A power consumption saving scheme of a smart phone by increasing the update interval of the GPS tracking signal is proposed. To compensate its degradation of GPS accuracy due to the longer update time interval, a Kalman filter is applied with signal processing technology at the server side to improve the accuracy at the same time without consuming the power of the mobile phone. The battery life duration can be extended by choosing proper parameter for continuously GPS tracking process with acceptable error.