IOT-BASED HAZARDOUS GAS LEAKAGE DETECTION

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 09 Issue: 11 | Nov 2022 www.irjet.net p-ISSN: 2395-0072
© 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 343
IOT-BASED HAZARDOUS GAS LEAKAGE DETECTION
Siranthini Balraj1, Ruchika Chakraborty1*, Ayan Prakash Gogoi Boro2, Bapon Sarkar3
1Assistant Professor, Department of Electrical and Electronics Engineering, SRM Institute of Science and
Technology, Ramapuram, Chennai, India
1*Student, Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology,
Ramapuram, Chennai, India
2Student, Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology,
3Student, Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology,
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Abstract - Human beings and all the living organisms in
this world needs fresh and healthy air to survive. In recent
years, with the increase in gas consumption, gas leakage has
become a problem. Leaked gas causes gas waste, especially
because of its combustible property, it can harm living
organisms and various industries. All components are
controlled by an Arduino which acts as the central
processing unit of the setup. When the sensor detects a leak
of the many combustible gases, it sounds an alarm with a
buzzer. This alarm supports a small LCD that displays
the amount of the gas leak and alerts personnel to turn on
the exhaust fan or stop the incoming gas at a particular
section. This will notify to take immediate security
measures. The capabilities of this gas detection system are
not only to monitor the various surroundings but also help
to prevent the gas leak and hence minimize the chances of
fire and leakage damages.
Keywords- Gas detection, Arduino, Buzzer, LCD, Alert,
etc
1. INTRODUCTION
The Internet of Things strives to make life easier and
faster by automating all the small tasks involved in human
life. Today technological advances like IOT are making
everything smart. Since IoT is very beneficial in
automating tasks, the advantage of IoT can also help
improve convenient security methods.
Security performs a significant role at the same time as
constructing homes, buildings, and industries in addition
to towns. The enlarged focus of certain gases within the
surroundings are maybe exceptionally unsafe. Nowadays,
everyone wishes for a facility that reduces effort and time
as well as expects their work to be as easy as possible. The
prime aim of the paper is to alert people with the help of a
buzzer and detect the hazardous gases present in the air.
This is done using an MQ5 sensor. The MQ5 sensor is used
to detect gas leakages for various applications. The MQ5
sensor detects the concentration levels of the gases and
outputs an analog value which can be later converted into
a digital signal. As soon as the gas is detected by the MQ5
sensor it displays alert messages on the LCD screen. The
user will get alerted via messages on the LCD screen. This
is an efficient way to automatically detect and control gas
leaks. It also prevents accidents. The idea of gas detection
and control can be implemented on a large scale in various
industries. The system can be installed in kitchens, hostel
cafeterias, etc. This helps reduce accidents caused by gas
leaks in homes and commercial facilities. This system is
low cost, so it is affordable, prevents many accidents,
saves many accidents, saves many properties and lives.
The MQ5 sensor is used to detect H2 (molecular
hydrogen), LPG, CH4 (methane), CO (carbon monoxide),
and alcohol. This system is not only capable of detecting a
gas leakage as well as alerting the user of the gas leakage
through a buzzer alarm.
2. LITERATURE SURVEY
Belkacem Khadi et al [1] has proposed in an
endeavor on the concept of multi-robot intellect referred
to as SR(swarm robotics), inspired by the nature and
observing groups such as groups of ants, flock of birds,
schools of fish and groups of bees. In SR, if a group of
robots performs a task in an intellectual approach then
they are referred to as SI (swarm intelligence), it is a
passive networking system in which every distinct bot of
the group interacts with one another and with the outside
ambiance. The field deals with the design of a large
number of simple robots, their physical properties, and
their controlling behavior. There are various simulation
platforms that are used to test the structure and algorithm
of swarm robots. R. Imtiaz, et al [2] has proposed a work
on implementing two different kinds of robots, which
included an explorer robot and a carrier robot. In this
configuration there are four robots, one master robot or
explorer robot which works as the leader and three slave
robots or carrier robots. The explorer robot travels the
entire path set towards target and gives the instruction

about the path to the carrier robots. Carrier robots follow
the path according to master robots command. Thus, any
work can be completed in less time and much efficiently.
Zigbee module is used as the communication device for
the intercommunication between robots, and is used in
each robots.
Mohd. Daneel Khan, et al [3] has proposed work
on the application of S-bots in disaster management.
Swarm intelligence provides a collective work to perform
a certain task which is much accurate and efficient. During
earthquakes when large number of buildings fall down
and lots of people are trapped under the building swarm it
is impossible by humans to reach that places and rescue
people. In this situation swarm of learning, birds can be
used to provide the information about the areas and give
data to make accurate decisions. It is also used for locating
a safe location and to give the exact path of the location.
Abhishek, P. Bharath, et al [4] gas leakage can be detected
by using the gas sensor, when a small amount of gas is
brought near the sensor it starts alerting the user about
the leakage of the gas using iot. P. M. Vidya, S. Abinaya, G.
G. Rajeswari, and N. Guna, et al [5] has suggested that the
leakage of the gas can be detected by using various gas
sensors
Kavitha B et al [6] has designed an alarming
system for the industry based on the huge amount of leak
of gas from the container. Kalpesh Gupta et al [7] has
designed an automatic window opening system when the
gas is leaked at a certain amount of volume continuously.
3. SYSTEM OVERVIEW
Hardware Requirements
Arduino Uno
The Arduino UNO is an open-source microcontroller board
based on Microchip's ATmega328P microcontroller and
developed by Arduino. cc. its main aim is to make
electronics to be as easy as possible. It uses different
microcontrollers, containing several input and output
pins. It provides an integrated development environment
(IDE). Arduino contains several numbers of parts and
integrated interfaces in a particular circuit board.
Figure.1
Relay
A relay is an electrical switch that is used to control all
other electronic devices by using the electromagnetic
mechanical toggle
Figure.2
LCD display
The LCD is used to display the message "Gas in Zone
Detected" on the first coded display in the program to
indicate hazards. All messages, data, and
commands displayed on the LCD are LCD registers. its
operating power supply ranges from +5.0 V or +3.0 V.
Figure.3
ESP8266 WIFI Module
ESP8266 is a low-cost WIFI microchip with a
complete TCP/IP stack and microcontroller functionality
from EspressifSystems.
Figure.4
MQ-5 Sensor
The Grove Gas Sensor Module (MQ5) is useful for
gas leak detection (home and industrial). Suitable for the
detection of H2, LPG, CH4, CO and alcohol. High sensitivity
and fast response time allows the measurements to be

made quickly as possible. The sensitivity of the sensor can
be adjusted with a potentiometer.
Figure.5
Buzzer
A buzzer or buzzer is a mechanical, electromechanical or
piezoelectric (piezo for short) audible signalling device.
Common uses of buzzers and beeps include alarm devices,
timers, and user acknowledgment of user input such as
mouse clicks and keys.
Figure.6
Software Requirements
A) Arduino IDE
B) Language C++
4. SYSTEM OPERATION
In this proposed system, the gas leakage is detected by MQ
5 sensor which is interfaced by Arduino uno, when the gas
leakage is detected through the MQ 5 sensor the lights gets
off with buzzer alarm and display alert message in LCD
display. Further, working of this proposed system is as
below
This gas sensor is used to detect hazardous gases in
industry. This sensor can detect the following gases:
• Carbon Monoxide CO 1 - 1000ppm,
• Ethanol C2H6OH 10 - 500ppm,
• Hydrogen H2 1 - 1000ppm,
• Ammonia NH3 1 - 500ppm,
• Methane CH4 >1000ppm
When detected, it will automatically turn on. The detected
values are sent as inputs to the main component, and the
buzzer will make a sound. Users can view sensor status
and take necessary actions accordingly.
Figure 7 depicts the architectural block diagram of the
proposed gas leakage detection system
Figure 7. Architecture of gas leakage detection system.
Figure 8. Flow diagram of the activities of the gas leakage
detection system

5. EXPERIMENTAL RESULTS
The prototype of the project system is shown in Figures 9
and 10. This proposed system is developed to detect and
monitor gas leakage. when a small amount of gas is
brought near the MQ5 sensor, it displays the message in
LCD i.e “GAS LEAKAGE DETECTED” and the gas value is
also shown at the time of the detection of the leakage of
the gas and the system monitors the LPG level and
displays the message with the gas value. The developed
system will be helpful to the customer. It helps them to
upgrade their safety norms and aids to prevent the major
disaster. It also helps in protecting life and property from
apparent accidents. The primary aim of this proposed
system is therefore to detect the gas leakage which is
detected though gas sensor and user should be notified to
prevent injure or outburst via buzzer and alert the user.
It helps them to upgrade their safety norms and aids to
prevent the major disaster. It also helps in protecting life
and property from apparent accidents. The primary aim of
this proposed system is therefore to detect the gas leakage
which is detected though gas sensor and user should be
notified to prevent injure or outburst via buzzer and alert
the user.
Figure.9 Prototype model of the gas leakage detection
system
Figure.10 Gas value is detected by the sensor and the
buzzer is switched on
Analog value of the gas sensor
When small amount of gas is brought closer to the MQ5
sensor, the analog value spikes above 1000.
6. CONCLUSION
This paper aims to ensure the monitoring and detection of
hazardous gases to meet safety standards. The system
detects gas in the atmosphere and continuously updates
and displays the gas values which can be easily viewed by
the user via a LCD screen. The system is quite responsive
and can stop crisis situations more quickly than manual
methods. The system alerts and responds to leakage by
alerting the user. In the future, this system will be packed
with advanced features to provide users with greater
security and relaxation. The popularity of handheld
devices has advanced the field of smart gas sensors,
greatly expanding the range. The need to ensure
workplace safety is expected to be the main driver of the
market in the upcoming years.
REFERENCES
[1] Belkacem Khaldi, Foudil Cherif, “An Overview of
Swarm Robotics , Swarm Intelligence Applied to Multi-
robotics,” International Journal of Computer Applications
(0975 – 8887) Vol 126 – No.2, September 2015, India.
[2] R. Imtiaz, B. Ashokkumar, M. Danny Frazer
“Implementation Of Load Sharing Using Swarm Robotics,”
International Research Journal of Engineering and
Technology, Volume: 03 Issue: 03, (pages: 1855 – 1862) |
March-2016 , India.
[3] Mohd. Daneel Khan, Krantee Jamdaade; ”Application of
Swarm Intelligence in Disaster Management”,
International Journal on Future Revolution in Computer
Science & Communication Engineering Volume: 4 Issue: 6 |
pp 77-84 June - 2018 , India

[4] Abhishek, P. Bharath“Automation of lpg cylinder
booking and leakage monitoring system-IJCRD”
[5]P. M. Vidya, S. Abinaya, G. G. Rajeswari, and N.
Guna“Automatic lpg leakage detection and hazard
prevention for homesecurity-National Conference on VLSI,
Embedded and Communication & Networks”
[6] Kavitha B C,VallikannuR“IOT Based Intelligent Industry
MonitoringSystem –SPIN 2019”
[7] Kalpesh Gupta, Gokul Krishna G and Anjali T ”An IoT
Based System for Domestic AirQuality Monitoring and
Cooking Gas Leak Detection for A Safer Home-
International Conference on Communication and Signal
Processing, 2020”

IOT-BASED HAZARDOUS GAS LEAKAGE DETECTION

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IOT-BASED HAZARDOUS GAS LEAKAGE DETECTION