Resumen
Problems related to fuel consumption efficiency are likely to occur in a car rental company. A system for the Internet of Things ? VISCar to monitor fuel consumption on Android mobile application is proposed to solve the problem. The VISCar has four features, including driving behavior analysis, monitoring, notification, and location and route to the gas station. This system consists of three subsystems: connector, server, and user interface. Car?s engine data is scanned by OBDII and sent via Bluetooth to Raspberry Pi then passed using 3G connection to the server and being stored. The data can be accessed by users through a mobile application via MQTT and processed on server for analysis. The test results show VISCar has been successfully built and implemented to monitor fuel consumption efficiency for the car rental company.