Remote Monitoring of EPACs using LoRa Communication

This thesis presents the design and implementation of a remote monitoring system for electric bicycles, using LoRa and Controller Area Network (CAN) bus technology. The system's main objective is to enable monitoring of key parameters, namely speed, acceleration, temperature, error messages, as well as location data. To achieve this, a point-to-point connection is established between two Raspberry Pi devices in the form of a transceiver and receiver. The transceiver is equipped with sensors to collect said data and sends it to the receiver over LoRa. The collected data is sent to an MQTT server, where an external computer can access the data to present it in an application. Testing was done in the city of Halmstad using an electric bicycle provided by the university. The results showed that the system had stable data transmissions over LoRa of up to 5.8 kilometers. However, the signal proved to be significantly weaker when obstruction was in the line of sight. The conclusions indicate that integrating GPS and LoRa communication, and with a good foundation for CAN bus integration, provides an effective way of monitoring data from electric vehicles remotely. The solution lays a good foundation with its monitoring capabilities, while also leaving room for improvement for future work and applications.