Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Application of MEMS accelerometers for monitoring the state and operations of vehicles.
Submission Author:
Vinícius de Araújo Salmazo , SP
Co-Authors:
Vinícius de Araújo Salmazo, Amarildo Tabone Paschoalini, Daniel Henrique de Sousa Obata
Presenter: Vinícius de Araújo Salmazo
doi://10.26678/ABCM.COBEM2021.COB2021-1119
Abstract
Currently, several areas of the industry use vibration analysis not only to aid and plan maintenance, but also to monitor operations. The MEMS (micro-electro-mechanical systems) technology assists in several applications in this area, given its accessibility and low cost. Thus, the analysis of vibrations is seen as a possibility of monitoring operations in vehicle fleets. The interest of this work was to evaluate the possibility of using inexpensive accelerometers and MCUs (microcontroller units) for collecting and evaluating the operating conditions of automotive vehicles, monitoring basic parameters such as engine speed and other systems activation. A low cost aquisition set was developed using an ESP32 chip development board and a MEMS type accelerometer model MPU6050, fixed on an internal combustion engine vehicle. The acquisition system was programmed to operate recording the data sampled in a SD card for later evaluation using a computer or performing the FFT (fast Fourier transform) of the signal and returning the frequencies with the highest amplitudes through the serial port. The work was initially carried out under static conditions and later with the vehicle on a known route. The results obtained were compared with the information recorded via the vehicle's CAN (Controller Area Network) data, verifying the potential use of the proposed system for this application.
Keywords
MEMS Accelerometers, monitoring, CAN bus, Vibration Analysis
