Development of power monitoring system using raspberry PI

Nazri, Muhammad Nazmi Nashriq (2023) Development of power monitoring system using raspberry PI. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Electric vehicles (EV) rely on the battery voltage and current to ensure sufficient power is delivered according to the electric motor. The research focuses on the main aspect that makes up a monitoring system in a vehicle in general which is the integration of sensors, data acquisition and processing, and also the real-time sensor monitoring capabilities. The implementation of these aspect was crucial in order to paint a clear picture on the flow of information from the raw data from the vehicle to the interface that the user can easily interpret. Through the study of data acquisition method, different types of sensor technologies that are related to the EV were analysed such as for the voltage, current, battery temperature, state of charge of battery, and also the power consumption. Continuing on, the paper moves on to the data processing process through the usage of Vehicle Control Unit (VCU) such as Arduino board and Raspberry Pi. These VCU are the brain of the power monitoring system that receives the raw data and interpret them in order for the user to easily read and observed the data. Other than that, the system has been tested in order to confirm its connectivity and accuracy of data measured. From the test that were done, the accuracy percentage of the data received by the sensor, Arduino, and Raspberry Pi were accuracy to the extent of 90%.Overall, this paper provides a holistic overview into the power monitoring system of an EV where from its process of retrieving data until its data displayed were analysed and explored so that the system may be studied and be improved on throughout the advancement of EV technology globally.

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