pillai hoc college

1. Mahatma Education Society’s
Pillai HOC College of Engineering & Technology, Rasayani,
Department of Electrical Engineering
Academic Year (2024-25)
ALCOHOL DETECTION WITH ENGINE LOCKING
UNDER THE GUIDANCE OF
MS. RONITA PAWN
PRESENTED BY PRESENTED BY:
SAURABH JAYANT HAKIM 39
ABHAYASHOK INGLE 40
SARVESH HARESH MHATRE 41
MAYUR YASHWANT MAHAGONKAR 42

2. CONTENTS
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ABSTRACT
INTRODUCTION
EXISTING SYSTEM
PROPOSED SYSTEM
BLOCK DIAGRAM
COMPONENTS&IT’S WORKING
APPLICATIONS
ADVANTAGES
CONCLUSION
FUTURE SCOPE

3. ABSTRACT
This project presents the design and implementation of an Alcohol Detection with
Engine Locking using the Ultrasonic Sensor and Arduino NANO as the MCU
(Master Control Unit). The system will continuously monitor level of alcohol
concentration in alcohol detection sensor and thus turn off the engine of vehicle if
the alcohol concentration is above threshold level. The model will also send the
message of where abouts of the vehicle through SIM900A. The project provides an
efficient solution to control accidents due to drunk driving.

4. INTRODUCTION
 The current scenario shows that the most of the road accidents are occurring due to drunk –
driving. The drivers who drink alcohol are not in an stable condition and so, rash driving occurs
on highway which can be risky to the lives of the people. The Indian ministry of statistics
reported thousands of road accidents in 2016.Bharath sets a legal limit of 30 mg/100ml blood
alcohol concentration(BAC)
 Any level higher than that same to be ineligible. The BAC depicts the amount of alcohol in an
exceedingly sure volume of blood. It's measured as either grams of alcohol per metric capacity
unit of blood or milliliters of blood. For BAC level from 0.4 to 0.6 drivers feel confused, BAC
level for 0.7 to 0.8 makes a driver mental, physical and sensory function to be severally impaired.
At this stage a driver is inactive and incapable of driving.

5. EXISTING SYSTEM
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The existing system is external system. The driver blow the device it find the
drink or not.
The main reason for drunk and driving is that the police are not able to check
each and every car and even if they catch any one ,the police can be easily
bribed.
So there is a need for an effective system to check drunken drivers.

6. PROPOSED SYSTEM
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The proposed system has to create on effective alcohol detector in vehicle. It is
internal system to connect on the vehicle ignition.
The "Alcohol Sensor" to check on driver is drink or not. If the driver is drink
the vehicle is not started couldn’t moved.
The engine would only start if the drivers alcohol level is below a predetermined
threshold.
This enhances safety by preventing impaired individuals from operating the
vehicle.
When a drivers breath indicates alcohol presence above a certain limit, the system
can disable the vehicles engine, promoting safer driving habits.

7. BLOCK DIAGRAM
ARDUINO
NANO
MQ 3
SENSER 5V RELAY MOTOR
SUPPLY
9V
BATTERY

8. COMPONENTS&ITS WORKING:
• Arduino Nano
• Ignition motor
• 9V
BATTERY
• MQ-3 sensor
• 5V Relay
• LED

9. The Arduino Nano is an open-source breadboard-friendly micro-controller board
based on the Microchip ATmega328P microcontroller (MCU) and developed by
Arduino.cc and initially released in 2008. It offers the same connectivity and
specs of the Arduino Uno board in a smaller form factor.
ARDUINO NANO

10. 5V RELAY
A 5v relay is an automatic switch that is commonly used in an automatic
control circuit and to control a high-current using a low-current signal. The
input voltage of the relay signal ranges from 0 to 5V.

11. IGNITION MOTOR
The DC motor is connected to the L293D which in turn is
connected to Arduino and is given 5V supply. DC motor works on
the principle of Lorentz Law. When an electric current is passed
through the motor, the coil carrying the current produces magnetic
field which in turn rotates the coil with the force experienced.

12. 9V BATTERY
The 9V battery is typically connected tothepowerinput of the microcontroller
and other electroniccomponents, providing a steady streamof powertokeep the
system running. It is important touseabattery with sufficient voltage and
capacitytoensure that the systemoperates reliablyandconsistently. The use of a
9V battery in the alcohol enginelocksystem with MQ3 sensor has several
advantages.Firstly, the 9V battery is compact andportable,making it easy to
install and transport. Secondly,the 9V battery has a long shelf life,
whichmeansthat it can be stored for extended periods withoutlosing its charge.
Thirdly, the 9Vbatteryprovidesastable and reliable source of power,
ensuringthatthe system operates correctly and consistently

13. MQ-3 SENSOR
The MQ-3 sensor is made of Tin Dioxide (SnO2) delicate layer. It is sorted out in
such a structure to give high affectability to liquor and low affectability to Benzene.
It has an immediate drive circuit to give lively reaction, quality, and longer
lifetime. It is having a clear interface type. On the sensor, port pins 1, 2 and 3 tends
to the yield, GND and VCC independently. The MQ-3 sensor is used to detect the
presence of alcohol level in the surrounding .

14. LED
An LED is a semiconductor light source which discharges centrality and oozes
light the degree that photons when electrons join with electron openings. The
shade of the light is compelled by the vitality required for electrons to cross the
vitality band hole of the semiconductor and reach to conduction bands from the
valence bands thus penetrating through energy gap.

15. APPLICATIONS
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Alcohol detector project can be used in the various vehicles for detecting
whether the driver has consumed alcohol or not.
This project can also be used in various companies or organization to detect
alcohol consumption of employees.
The Alcohol detection with engine locking system can help prevent accidents
due to drunk driving.
The alcohol detection with engine locking system can be very helpful for
police.
The Alcohol detection with engine locking system prove automatic safety
system for cars and other vehicles.

16. ADVANTAGE
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Low cost
Automated operation
Low power consumption
It provides an automatic safety system for cars and
other vehicles as well
It needs simple drive circuit and it is simple to use.
It has high sensitivity which results into faster
response time.

17. CONCLUSION
We have given an incredibly capable way to deal and to develop a smart
system for vehicles to diminish number of disasters caused in light of
alcohol driving. As the creating insight among people is that vehicle
security is dynamically critical. Further degree of this structure is to
control the setbacks caused due to alcohol use. We have developed a real
time model that can automatically lock the engine when a drunken
driver tries to drive a car. By fitting this alcohol sensor into the car, we
can safely guard the life of the driver and also the remaining passengers.

18. FUTURE SCOPE
We can implement GSM technology to inform the relatives or owner of the vehicle about the
alcohol consumption.
We can directly make this product to inbuilt with the existing automobiles.
By using such technique the rate of road accidents can be prevented whose main cause is drink
and drive. It can also prevent the vehicles from theft. It can be Integrated Drunk and Drive
Detection system detects solely the driver’s state. This could even be extended by incorporating an
extra alcohol odor sensor at the traveler seats to discover the presence of alcohol within the air
within the vehicle cabin. Once alcohol is detected, the system problems each a voice alert and a
message alert on the navigation system monitor.

19. THANK
YOU