This paper describes the work that has been done in the design and development of a wireless on-board diagnostic system (OBD II) fleet management system. The system aims to measure speed, distance, and fuel consumption of vehicles for tracking and analysis purposes. An OBD II reader is designed to measure speed and mass air flow, from which the distance and fuel consumption are also computed. This data is then transmitted via WiFi to a remote server. The system also implements global positioning system tracking to determine the location of the vehicle. A database management system is implemented at the remote server for the storage and management of transmitted data and a graphical user interface is developed for analysing the transmitted data. Various qualification tests are conducted to verify the functionality of the system. The results demonstrate that the system is capable of reading the various parameters, and can successfully process, transmit, and display the readings.
The integration of OBD II and wireless communication technologies was observed in @cite_8 , where an OBD II system that measured real time vehicle data was built. The system interfaced with a car's ECU through the OBD II connector. The data received from the ECU was then transmitted to a remote device via Bluetooth, WiFi, or WCDMA in hexadecimal format. The study mainly focused on integrating various wireless communication technologies to connect to various mobile devices. The monitored parameters included vehicle speed and engine revolution per minute (RPM). A flaw in this system is that the received data is not meaningful to a casual user as the hexadecimal data requires decoding.
@cite_8
1965068863
AbstractOrdinarily, a driver knows the current driving state of a vehicle through the On Board Diagnosis-II (OBD-II) data. Lately convenience devices related to real-time vehicle control and driving information data have been using OBD-II from the vehicle network.However, when these devices receive vehicle data rom the OBD-II network, each device receives its own information separately using its own vehicle network. If the driver changes the product and OBD-II connector to use OBD-II, the driver also changes the OBD-II connector. As a result, the driver spends useless money for the product and vehicle to use OBD-II.In this paper, we implemented integrating an OBD-II connector that uses Bluetooth, Wi-Fi, and WCDMA modules to overcome the above disadvantage.