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IoT Based Smart Home Automation and Security System Using
Mobile App With Assistant Robot for Developing Countries
A. Z. M. Tahmidul Kabir¹, Al Mamun Mizan², Plabon Kumar Saha³, K M Moshiur Rahman Songlap⁴,
Akib Jawad Ta-sin⁵, Nafiz Ahmed Chisty6
American International University-Bangladesh, Dhaka-1229, Bangladesh
tahmidulkabir@gmail.com¹
ABSTRACT
This paper discusses an IoT based home automation system through which home security, room air quality check, and
emergency assistance can be obtained. This system can automatically provide home safety, but the user can also control
the system manually if desired. The system uses the NodeMCU module as the mainboard and has a mobile application for
remote monitoring. In addition to air quality detection, the system can detect CFCs used in the air conditioning system to
avoid accidents. If any unwanted incident occurs, the system will immediately turn off the home's main power connection
and send the house's status in the form of a notification to the user's mobile app. Also, an essential feature of the system
is that the system is able to block the entry of any unwanted person in the house. There is also an assistant robot to
prevent fire accidents initially.
INTRODUCTION
Significant in reducing the number of many
accidents.
Two separate modes through which the user can
automatically or manually enlist the help.
Two-way security system for the house’s door.
Fire extinguisher ball can be automatically
dropped on the house.
Fig 3 shows the assistant robot's functional diagram . Yellow
marked area on the top left side in fig 3 is the stop point or rest
point of the robot. Here the robot will be plugged in for charging
purposes.
Fig 3 : 3D working diagram.
Fig 2 : 3D working diagram.
Fig. 4 (a)Normal, (b) Fire detected, (c)LPG detected condition.
Fig. 5 (a), (b) Person entry with the fingerprint, (c) with password.
Fig 1 : Record Numbers of Fires. [1]
The system works as home
automation as well by turning on the lights fans and also ensuring
two-way protection for the user to enter the house. For the
automation mode, the user can set trusted contacts to send them
notifications for a period of time that the user was predefined. This
system notifies potential hazardous incidents that will help
reduce casualties not only for the house but also may become
the reason that can save lives from tragic incidents.
We used a line follower robot for assistance.
IoT based home automation and security
system.
Used different types of sensors. (PIR, Flame,
Temperature, etc.)
Fig 4 to 5 show the result analysis of the project. The
room's normal condition and the fire detection
condition are shown in 4(a) and 4(b), respectively.
Figure 4(c) shows LPG gas detection Fig 5(a)-5(c)
show the user's home entry by providing
fingerprint and password, respectively.
Automatic mode: User can add some
numbers and set a duration for how long the
added numbers have access to getting
notifications.
Manual mode: The user will be notified via
message and alarm about a threat, but whether
the user wishes to contact trusted contacts
Fig. 6. App: (a) automatic mode, (b) manual mode, (c) live monitoring.
depends upon the user.
Live Monitoring: A link will be generated through which
real-time video of the current situation of the threatened
Assistant Robot
First hand defense for fire accident.
RESULTS
CONCLUSION
REFERENCES
METHODS
2. https://timesofindia.indiatimes.com/city/pune/10-injured-in-
vadgaon-sheri-lpg-cylinder-explosion/articleshow/77899638.cms
1. https://www.thedailystar.net/
frontpage/news/fire-incidents-
spike-1865701
2. https://www.dhakatribune.com/hashtag/fire-incident
abc
abc
a b c
place can be monitored.