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Published on Aug 21, 2023

Abstract

The objective of this project is to monitor the vehicle parameters such as speed, traveled distance, engine oil and engine temperature.

Normal existing meter are Analog meter. The one draw back in this meter are we cannot know that exact fuel quantity in the tank but in this project the exact quantity is displayed in the digital form and also speed of the vehicle and how much distance the vehicle has been traveled like these information also displayed. We can also monitor the engine temperature.

This project is designed with float sensor, micro controller, LCD display, ADC, proximity sensor, amplifier unit and temperature sensor.

In this project proximity sensor is fixed in the wheel. When the wheel is rotating the proximity sensor gives the pulse to the micro controller. Inside the counter will count that pulse from this we can easily calculate the revolution per minute (RPM). If you multiply into hour we can calculate the revolution per hour by which we can measure speed of the vehicle.

If we know the Diameter of the vehicle we can measure the Distance that the vehicle has been traveled. The fuel storage in the tank is monitoring by float is fixed in the tank and connected to microcontroller through amplifier and ADC

Float sensor is one of the transducer is attached in the fuel tank. Depends upon the oil level it generate the voltage signal. These signals are in the range of milli volts. So the transducer output is given to amplifier circuit to amplify the signals. The amplifier circuit consists of operational amplifier. The amplified signals are given to ADC.

Similarly the temperature sensor is used to monitor the engine temperature. The temperature sensor output is given to microcontroller through amplifier and ADC.

Automatic Car Dash Board

ADC is nothing but analog to digital converter. It converts the incoming analog signals into corresponding digital signals given to micro controller. The microcontroller may be Atmel or PIC both are flash type reprogrammable microcontroller.

In micro controller we have already programmed. Microcontroller received those digital output signals from ADC. Now the microcontroller compared with stored value. The corresponding all measured values are displayed in the LCD display such as speed, traveled distance, fuel quantity and engine temperature





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