2022 International Conference on Sustainable Technologies for
Industry 4.0 (STI), 24-25 December, Dhaka
LIFECRAFT: AN ANDROID BASED APPLICATION
SYSTEM FOR WOMEN SAFETY
Rabbina Ridan Khandoker, Shahreen Khondaker, Fatiha-Tus-Sazia, Fernaz Narin Nur, Shaheena Sultana
Department of Computer Science & Engineering, Notre Dame University Bangladesh
Dhaka, Bangladesh
rabbinaridan13@gmail.com, shahreenkhondaker@gmail.com, fatiharasha23@gmail.com, fernazcse@ndub.edu.bd, shaheenacse@ndub.edu.bd
Abstract— Women have ensured the stability, progress and 978-1-7281-6059-3/19/$31.00 ©2022 IEEE
long-term development of the nations throughout the history. Industry 4.0 and the Internet of Things (IoT) are two of
If women are subjected to violence and harassment, they the hottest mottoes in real-world technology. Industry 4.0
cannot be genuinely included in society. With increasing seeks to promote human-to-technology communication. It
heinous incidents involving women and children, an
aims at more advanced world as well as more secured and
advanced system is needed to serve the purpose of getting
help as soon as possible. At present time, the use of
easier system for everyday life, and our work serves that
smartphones has increased rapidly, making it possible to use purpose successfully. Our work is related to intelligent
a smartphone efficiently for security or other protective computing and security system, we hope that it will make
purposes. All the recent atrocious incidents have made us some contribution to it.
think about to go for the safety issues. The crimes against
women can be minimized with the help of our application The rest of the paper is as follows organized. Section
“LifeCraft”. It is an application for android for women’s II presents the related work. In Section III, the proposed
safety though men can also use it at a distress situation. It can
methodology of the system is introduced and the system
be activated by voice command or SOS key. An alert message
with location is sent to the user defined numbers in every five design is presented by diagrams. Section IV provides
minutes until the system is turned off [1]. Many cases remain briefly the results and uniqueness of our system. Finally,
mysterious due to insufficient evidence. So, we have kept Section V presents a comparison table with some existing
audio recording option to keep evidence. Continuous location systems and section VI presents this paper’s conclusion
tracking, showing the victim safe zone, offline mode is some and future work.
of the most useful features of this system.
II. RELATED WORK
Keywords—women security, android application, voice It is a very unfortunate observation that there has been
command, location tracking, offline, safe zone a shocking increase in crimes against women [4]. 731
rapes reported in first six months of 2019 in Bangladesh
I. INTRODUCTION which shows how important it is to do something
While the government has taken many steps, the crime immediately to decrease it. We have gained knowledge
rate against women is not minimizing [3]. It is growing regarding this purpose and studied many papers which are
daily at a shocking rate. Eve teasing, harassment, related to this project.
molestation, rape, domestic violence, abduction is
There is an app called ''Raksha-women safety alert''.
becoming a part of everyday life. Many women safety
This Raksha app has made for women safety so that a
applications have been made to handle this emergency
woman will always feel safe. It sends alert messages with
situation [1]. Here we are introducing an android app that
location to the specified contacts [5].
ensures women's safety and minimizes the danger by
identifying the position of the person at risk. Here is another app named ''I Go Safely'' [6]. This
application sends a 30 seconds audio recording and video
The main functionality of the app is, at first user has
clip to the registered contacts along with emergency
to make sure that the app is on when she steps out.
message. The app is activated if the user shakes the phone
Whenever any unfortunate event occurs, she has to press
or will drop the phone. But If anyone shakes the phone
SOS or can scream to give the voice command for starting
mistakenly it will start working which can make
the main function of the app. After starting the main
unnecessary problems. Similar to this there is another app
function, it will send emergency message with victim’s
named ''Shake to Alert'' [7].
current location to the registered contacts. And also, it will
make a call to the helpline number. At the same time, it Another example of an application named "Safety pin''.
will start audio recording. The app can do live streaming The application has some features like emergency contact
so that the registered contacts can see the victim’s current numbers, GPS Tracking. At the time of danger, the app
location time to time. We have also kept offline system. pins the safe areas along with their security scores to go. It
After the work is done with the app, user has to turn it off allows users to identify areas that are potentially unsafe to
to stop its functionality. help others [3].
“Abhaya” is another android application for the safety
of women. It identifies the location of the site via GPS and
sends a message to the registered contacts that includes can reach out for help or can at least know that she is in
this location URL and also calls on the first registered danger.
contact to assist the one in dangerous situations. This
application’s unique feature is to send the message We have used android studio 3.3.2 and java jdk 11.0
continuously to the registered contacts for every five to build our app “LifeCraft”. To use all the features, the
minutes until the “stop” button in the application is app does not require any external hardware. And it can be
clicked. Continuous SMS location tracking helps to find used with any GPS enabled android phones.
the victim’s location quickly and to rescue safely [9].
A use case model and a flowchart diagram of the
After studying some papers including the apps proposed system is given below which will make it easy to
mentioned above, we got to the fact that, though there are understand all the working methodology of our system.
various applications which serves the same purpose as
ours, they lack some features. For example, some sends the
location URL but cannot show safe places; some can do A. Use-Case Model of the Proposed System
live streaming but cannot do any recording to keep
evidence etc. These facts led to think about making a new
application which has all those features altogether to
guarantee a safer life.
III. PROPOSED SYSTEM
Our system is designed such a way that it will be
unique from other existing app by integrating all the
features offered by those. The user needs to initialize the
application by registering. User can login with the
registered email and password. User has to put three
contact numbers manually. They will be registered with the
Firebase Database.
Every time the user uses this application, she needs to
start the app by turning on the On/Off button. Then the app
will start working until the user turns it off. Whenever the
user presses the SOS key or screams with the voice
command the app will start its emergency service and will
send alert message containing the user’s name with the
location to the registered contacts. The location will be
sent in every 5 minutes to the contacts so that if the person
changes his/her place, they can know about it and reaches
out for help [1]. Also there is a system of live streaming.
When the user travels from one place to another, the
registered contacts can watch his/her positions using
Geofire.
There is a system of audio recording. After getting the
SOS command the system will start recording the
surrounding for the first 5 minutes so that the user can use
it later as a proof. By safe zone option user can see nearer
police stations through map. Besides the emergency Fig 1: Use-Case Model
contacts, there is another option called emergency number
which is country’s helpline number. Whenever the Figure 1 represents the use case model of our system
application gets SOS command, it will make a call to that “LifeCraft” where the user has access to Login /
number which is toll free. The user needs to put that Registration page, previously saved audio recording files,
helpline number manually as we are planning this user interface, map and can give voice command/ SOS.
application for worldwide use. The system can use the database, GPS, recordings, can
send texts and can take voice command/SOS command.
Sometimes user may run out of money and cannot use
data to use all the features in a distress situation. Keeping
that in mind we have planned for Offline mode where the
application can send alert message but without location,
can make call to the helpline number and do audio
recording. This feature has been added for minimizing
danger anyhow so that in any situation the user can get
help. Though the application cannot send location with this
feature but user’s family may know the route of her and
B. System Flowchart the same app user who will mark himself/herself as a
safe place and victim will find them. But if there is no
one to mark themselves at the emergency moment then
the victim will not get this option. Also, it is mandatory
to be a user of the app to mark thyself as safe zone. But
in our system, we have marked the police stations as
safe zone. Therefore, it will be easier and reliable for
the victim to get the place which will be shown in the
maps.
• Offline mode: By using our application, the user can
be saved from danger even when the mobile network
is switched off. In offline mode, an emergency
message will be sent to the registered contacts but
without sharing location and can call to helpline. We
have kept this option so that at least the family would
know about her situation and can take necessary steps
as soon as possible rather than not knowing it all. Also,
in offline mode, our app can do audio recording which
is not available in another application “Raksha”,
which has the same feature.
• An advanced system: Our system is unique from
others because not only it is implemented with two
unique features but also, it is an integrated version. We
tried to combine all the possible features to make it
useful at any situation. Whereas other apps have only
some of them.
B. Result
Here are some screenshots of the design of our
proposed system by which our system can be more
understandable.
Fig 2: Flow-Chart of the proposed system
Figure 2 represents the system flow chart. After login,
the system needs to be turned on, then it will start working
in the background. After getting the command the system
will start working following the previously discussed
methods.
IV. RESULT & UNIQUENESS
Our application is very helpful in emergency situation
and also unique from other applications.
A. Uniqueness
We have mentioned many android applications in the
related work part having similar functions to our
application. But in our application, we have some unique
features which makes it different from other existing
systems. They are:
Fig 3: Sign Up Form
• Safe Zone: Though there is another app which shows
the safe zone to the victim but the working process is Figure 3 represents the signup form of the
not similar. To show the safe places other app needs application. After filling it, user details will be saved
to use into the database. User can also register through any
google account.
live GPS stream of that friend, in the ‘Safe Zone’ section
the user can see nearest police stations. And the ‘On/Off’
switch is to turn on/off the app.
Fig 4: Login Page
Figure 4 depicts the screen shot of Login Page.
Fig 6: App Settings
Figure 6 displays the Settings of “LifeCraft”
application. Here the user can add any voice command that
he/she will use later in danger.
Fig 5: Screen shot of UI
Figure 5 represents the screenshot of its easy user Fig 7: Alert Message Figure 7 shows the
interface. Here are ‘Recordings’ where we will get the alert message with location URL.
audio recordings, in the field of ‘Friends’ we can see the
TABLE I
COMPARISON BETWEEN EXISTING SYSTEMS AND OUR PROPOSED SYSTEM
Features Raksha I Go Shake Safety Abhaya Prop
Safely to pin osed
Safety syste
m
Alert
message Yes Yes Yes Yes Yes Yes
Send
location Yes Yes No Yes Yes Yes
Live GPS
tracking No No No Yes Yes Yes
Safe Zone No No No No
Yes Yes
(Not (Alw
always ays
availabl avail
e) able)
Audio
recording No Yes No No No Yes
Fig 8: Google Map
Offline Yes (No No No No No
Yes
mode recordin
g) (with
Figure 8 shows the location of the victim. Also, safe zone recor
and live streaming will be shown like this. ding)
Voice
The application’s key benefit is it is integrated with every command No No No No No Yes
possible feature to help someone in need.
Has all No No No No No Yes
Voice command will help when the person cannot even these
reach to the phone. Offline mode will help by sending features?
message and call and recording the surroundings even
when the data connection is not available. Safe zone
will help to find nearest police station. So, by
VI. CONCLUSION & FUTURE WORK
combining all the helpful features, our application will
overcome the lacking of other related existing systems.
This paper proposes a new women's safety model that
aims to provide a very safe environment. Many unfortunate
V. COMPARISON WITH EXISTING SYSTEM incidents took place in the case of women. Problems can
come from anywhere. This paper analyzes the key needs of
In this portion, we are representing the main the intelligent security system with technology demand and
differences between the related existing systems and system building challenges. Since the prediction of such
our proposed system “LifeCraft” in Table I by which incident is not possible hence to minimize it our proposed
we can show up the reliability and uniqueness of our mobile application will be very helpful. It will not only help
work [3,5,6,7,9]. the women but also the children as it can work with voice
command which is easy for a child to operate. And men can
also use it when they face any big trouble and need help.
Not only in sexual related problem, it can be used when
someone faces accident or hijacking or public attack.
Whenever anyone is in any kind of danger, our system will
help to decrease the risk and make the world a better and
safer place.
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