A Low-Cost GPS Logger for Cyclest Group Trajectory Data Collection

This paper Presents the design of a low-cost GPS logger that logs GPS coordinates of a group of cyclists throughout certain trip. The main goal is to eliminate the communication cost by replacing cellular connection by Wi-Fi. Therefore, the system is equipped with a Wi-Fi transceiver that allows transferring the trip data from the moving logger to a stationary off-road host station. Mathematical models for data size, transfer time, location logging resolution are proposed. System design and implantation are reported. The paper also presents the a practical field test case of a full data transfer cycle at velocity of 40 km/h. results show the feasibility of the proposed system in serving groups of touring cyclists who move in moderate speeds.