Universitatea POLITEHNICA BucurestiFacultatea de Electronică, Telecomunicaţii şi Tehnologia Informaţiei

System for monitoring the parameters

of vehicle

Radu-Petru FOTESCU, PhD Lecturer Rodica CONSTANTINESCU,

PhD Lecturer Bogdan ALEXANDRESCU, Loredana-Maria BURCIU1ETTI, University Politehnica of Bucharest, Bucharest, Romania

University Politehnica of Bucharest

Faculty of Electronics, Telecommunications and Information

Technology

OMN100-10

2020

Introduction

• The system will provide real-time data such as:

engine speed, engine temperature, vehicle speed

but also other parameters.

Figure 1. Diagnostic system with OBDII connector

Block diagram

OBD II

UART

interface

adapted for

Arduino

ARDUINO

MEGA 2560

development

board

LCD for

Arduino

Mega 2560

with a

resolution of

480x320

pixels

Figure 2. Block diagram of the system

Hardware implementation

Figure 3. Connections between system components

Connecting the system to the OBD II connector

Figure 4. Connector OBD II Figure 5. System connected to OBD II

Method of fixing the system in the vehicle

Figure 6. Method of fixing the system

Software implementation

It was developed the source code with which the system

is able to read the data from the vehicle and display them

in real time on the LCD screen.

Figure 7. Logic diagram

Figure 8. Microcontroller programming

Software implementation

• This system is able to read the parameters in real time and

alert the driver if the parameters exceed normal values.

• This system is compatible on all vehicles with an OBD II

connector on board.

• The displayed parameters differ depending on the engine:

diesel or petrol. Diesel engines have a larger set of readable

parameters.

Conclusions

Thanks for your attention!

References

[1] http://www.iovi.ro/blog/index.php/ce-inseamna-diagnoza-computerizata-

avantaje-si-limite/

[2] http://www.e-automobile.ro/categorie-diagnoza/149-diagnoza-auto-obd-citire-

parametrii-motor.html

[3] https://freematics.com/store/index.php?route=product/product&product_id=30

[4] http://www.e-automobile.ro/categorie-diagnoza/5-obd-diagnoza-auto.html

[5] TAEP, Curs 6, Testarea magistralelor de date, Ș.l. Lucian Perişoară

[6] http://www.e-automobile.ro/categorie-electronica/11-protocoale-comunicatie-

automobile.html

[7] https://www.outilsobdfacile.com/vehicle-list-compatible-obd2/volkswagen

[8] Alexandru V., Irina B.,Bazele electronicii auto, Editura CAVALLIOTI,

București 2013

[9] https://github.com/Bodmer/TFT_HX8357

[10] Curs “Microcontrolere”, profesor Rodica Constantinescu, Facultatea ETTI –

UPB

[11] www.nspg.pub.ro