Online System for OrienteeringResults : A portable solution for collecting, processing andtransmitting orienteering results in real-time

Sammanfattning: Today orienteering competitions use digital sensors to collect the punches from each runner. This is done by a chip that the runner carries and punches at each control where a sensor is placed. This data is then collected and processed by a computer program to calculate the results. Since the orienteering competitions often occur in areas without common infrastructures, it requires the organisers to build their own for power and network. This thesis set out to investigate if it is possible to build a system where the data could be read, processed and presented without these locally built infrastructures. Furthermore, it investigates how much power the system would require. To test this a Raspberry Pi computer is used, where an orienteering sensor alongside a 4G modem is connected. On the Raspberry Pi a program is built for reading the data via an API communicating with the sensor. Then through mobile network the reserved data is sent to a result calculation server. These results are then presented on a website in order of best time. The energy consumption is measured through the amount of current the device uses. It was discovered that the device’s peak current was 798 mA which leads to that for a standard competition time of 8 hours a battery with the capacity of 6384 mA·h would be required.