Modern Safety Device for Women’s Protection Using IoT

Jayaram K., Gokul Krishna K., Hamsani C. and Karumanchi Karishma

Department of Electronics and Communication Engineering, KIT - KalaignarKarunanidhi Institute of Technology,

Coimbatore, Tamil Nadu, India

Keywords: Women’s Safety, AI‑Based Threat Verification, Emergency Response System, GPS Tracking, GSM

Communication, Fault Detection Mechanism, Real‑Time Location Sharing.

Abstract: Our project enhances traditional safety mechanisms by addressing their limitations, such as the inability to

verify accidental triggers and delays in response. This device, equipped with a switch, NodeMCU, GPS, and

GSM module, activates when the button is pressed, instantly sending the GPS location and recording audio.

The recorded audio is processed by AI to confirm if the user is genuinely in danger. If validated, the

coordinates are sent to a police admin via a Windows application, who can assign the nearest officer or activate

a "Notify Volunteers" feature to alert registered users within a 500-meter radius. Unlike conventional devices,

this system includes a fault detection mechanism, works without internet using GSM, and ensures seamless

communication even in low-connectivity areas. By integrating AI-based verification, faster response options,

and community involvement, this project provides a smarter, more efficient, and reliable solution for women’s

safety.

1 INTRODUCTION

Women's safety is a pressing concern in today’s

world. While several devices have been developed to

address this issue, many still face challenges like false

alarms, limited functionality, and delayed response

times. Our project, Modern Safety Device for

Women’s Protection Using IoT, introduces a smarter

and more reliable system by integrating AI, advanced

hardware, and community involvement. Below, we

explain the key components and unique features of

our project.

1.1 The Need for Smarter Safety

Devices

Existing safety devices send GPS locations or

messages to pre-registered numbers or authorities

when a button is pressed. However, these systems

lack a way to verify if the button was pressed

accidentally or if there is a real emergency. This often

leads to unnecessary actions and wasted time.

Additionally, many devices require internet

connectivity, which may not be available in remote

areas, making them unreliable in critical situations.

1.2 How Our Device Works

Our device is equipped with a switch, NodeMCU,

GPS, and GSM module. When the button is pressed,

it immediately sends the GPS coordinates and records

audio. The recorded audio is analyzed by AI to

determine if the woman is in genuine danger. If

confirmed, the system sends the location to a police

admin using a dedicated Windows application. The

admin can assign nearby officers or notify volunteers

within 500 meters using a mobile app. This multi-step

approach ensures a quicker and more accurate

response.

1.3 Unique Features and Benefits

Our project introduces several unique features to

enhance traditional systems. It includes an AI-

powered fault detection mechanism that reduces false

alarms and saves time. The GSM module ensures the

device works without internet, making it reliable even

in low-connectivity areas. Additionally, the “Notify

Volunteers” feature mobilizes nearby app users,

providing immediate assistance when authorities are

unavailable. These features, combined with AI

verification and community involvement, make our

Jayaram, K., K., G. K., Hamsani, C. and Karishma, K.

Modern Safety Device for Women’s Protection Using IoT.

DOI: 10.5220/0013891900004919

Paper published under CC license (CC BY-NC-ND 4.0)

In Proceedings of the 1st International Conference on Research and Development in Information, Communication, and Computing Technologies (ICRDICCT‘25 2025) - Volume 3, pages

72-77

ISBN: 978-989-758-777-1

device a practical and efficient solution for improving

women’s safety.

2 METHODOLOGY

This project focuses on providing a smart and reliable

safety device for women using IoT and real-time

verification. The system is designed to reduce false

alarms, ensure quick response, and work even without

internet connectivity. The methodology involves both

hardware and software components, ensuring

efficient communication between the user, police,

and nearby volunteers.

2.1 System Workflow

In case of danger, a woman can press a button on the

device, equipped with NodeMCU, SIM800L, and

GPS, which fetches her location and sends an SMS

alert with GPS coordinates to the police admin server.

A live audio call is initiated between the woman and

the police admin, allowing the police to analyze the

conversation and determine if it is a real emergency.

If the case is genuine, the admin assigns a nearby

police officer to the location. If no officer is available,

the "Notify Volunteers" feature is activated, sending

an SOS message via SMS to all registered volunteers

within a 500-meter radius. Even if their phone is

offline, it automatically rings, prompting them to

accept or dismiss the alert. Users who accept the alert

are connected to a group chat to coordinate help. The

system does not require an internet connection for

emergency communication, as the GSM module

ensures that the message is delivered via SMS,

allowing the system to function in remote areas.

Figure 1 shows the block diagram.

Figure 1: Block Diagram.

2.2 Advantages of the Proposed

Methodology

Combining real-time verification, AI-based decision-

making, and community support, this safety system is

more efficient than traditional solutions. It reduces

false alarms through live audio verification, ensuring

unnecessary police intervention is avoided, and offers

faster response times by sending alerts immediately

to either the police or registered volunteers. The

system operates through SMS and GSM

communication, making it functional without an

internet connection and accessible in remote areas.

By involving the community, it ensures help is always

available, even when law enforcement is not nearby.

Additionally, the methodology is scalable to other use

cases, such as child safety, elderly monitoring, and

public security.

3 PROPOSED SYSTEM

This system aims to provide a fast and reliable safety

solution for women by combining hardware-based

emergency alerts with real-time verification and

community help. It overcomes the shortcomings of

traditional safety devices by ensuring quick

communication, reducing false alarms, and working

offline. Figure 2 shows the proposed system.

Figure 2: Proposed System.

3.1 Emergency Alert Activation

The system includes a portable device with a

microcontroller (NodeMCU), GPS, GSM module

(SIM800L), and a button. If a woman feels unsafe,

she can press the button. This action instantly fetches

her live location and sends an SOS message via SMS

to the police server. Unlike apps that need the

internet, this device works even in low-network or

offline conditions.

Modern Safety Device for Women’s Protection Using IoT

3.2 Real-Time Verification and

Response

To avoid false alarms, the system starts a live call

between the user and the police. The authorities can

listen to the background to check if the user is in real

danger. If it's a false alarm, the police can ignore it. If

the distress is genuine, the nearest police officer is

sent to the location.

3.3 Volunteer Assistance System

If no police officer is nearby, the system sends an

SOS message via SMS to all registered volunteers

within a 500-meter radius. Even if their phones are on

silent or offline, the alert forces the phone to ring

loudly to get their attention. Volunteers can accept or

dismiss the request. Those who accept are connected

to a group chat to coordinate help.

3.4 Key Advantages of the Proposed

System

This system offers immediate response, real-time

verification, and offline functionality, making it

highly reliable and efficient. By combining law

enforcement and community support, it ensures faster

intervention and increased safety in emergencies.

4 SYSTEM ARCHITECTURE

The system architecture for the Modern Safety

Device for Women's Protection using IoT includes

both hardware and software components that work

together seamlessly to ensure effective and reliable

operation. Figure 3 shows the components.

Figure 3: Components.

4.1 Hardware Components

The main hardware components of the system include

the Node MCU, SIM800L GSM module, GPS

module, and a trigger button. The Node MCU serves

as the central processing unit, managing

communication between all components. The

SIM800L GSM module is responsible for sending

SMS messages and establishing communication with

the police server and registered numbers. The GPS

module fetches real-time location coordinates, and

the trigger button activates the device, initiating

emergency protocols. A dedicated power supply

ensures uninterrupted operation.

4.2 Software Components

The software components consist of embedded

software running on the Node MCU, which manages

interactions between hardware elements, processes

inputs from the trigger button, and controls the GSM

and GPS modules. The system also includes a server-

side component that receives location coordinates and

audio recordings from the safety device. The server is

equipped with software to coordinate responses,

either by alerting nearby police officers or notifying

registered volunteers through a mobile application.

The mobile app installed on users' smartphones

awakens and rings in emergency scenarios, even in

offline mode, prompting volunteers to assist.

4.3 Communication Flow

The communication flow within the system starts

with the activation of the device when the trigger

button is pressed. The Node MCU activates the

SIM800L GSM module and GPS module to fetch the

current location coordinates and start recording audio.

This data is sent to the police admin server via SMS.

The server then coordinates the emergency response,

either by sending alerts to nearby police officers or

notifying registered volunteers within a 500-meter

radius.

4.4 Fault Detection Mechanism

To prevent accidental triggers, the system includes a

fault detection mechanism. Police officers have the

option to dismiss alerts if they confirm that the user is

not in danger, ensuring the system remains efficient

and responsive. This fault detection mechanism helps

filter out false alarms and maintain the reliability of

the system.

ICRDICCT‘25 2025 - INTERNATIONAL CONFERENCE ON RESEARCH AND DEVELOPMENT IN INFORMATION,

COMMUNICATION, AND COMPUTING TECHNOLOGIES

5 EFFICIENCY OF PROPOSED

SYSTEM

Time efficiency and community involvement are key

features of the proposed system, making it highly

effective in responding to emergencies. The system is

designed to minimize response times, starting with

the immediate activation of the device when the

trigger button is pressed. This swift action ensures

that the user’s location coordinates and audio

recording are sent without delay. The AI verification

system automates the process of analyzing the audio

for distress signals, reducing the time required for

manual validation. The use of SMS for real-time data

transmission ensures that information reaches the

police admin server promptly, even in areas with

limited or no internet connectivity.

The centralized police admin server plays a

crucial role in coordinating the emergency response

by quickly determining the appropriate action,

whether it involves dispatching nearby police officers

or alerting registered volunteers. The system ensures

efficient resource allocation by tracking the user's

location and status in real time, enabling the nearest

available responders to act swiftly.

Community involvement further enhances the

system’s efficiency. Registered volunteers within a

500-meter radius are notified of the emergency,

creating a local support network that can provide

immediate assistance, especially in situations where

police response may be delayed. The mobile

application used by volunteers ensures that they

receive the SOS message instantly, even if their

phones are offline, by sending an alert that awakens

and rings their devices. Volunteers can quickly

respond to the alert, coordinating their efforts through

a group communication channel to assist the user

effectively.

By leveraging both technological advancements

and community support, the proposed system ensures

a rapid and coordinated response to emergencies,

significantly improving the chances of providing

timely assistance to those in need. This combination

of time efficiency and community involvement

makes the system a comprehensive and reliable safety

solution for women.

6 EFFICIENCY ANALYSIS

In terms of response time, the proposed system is

significantly more efficient. It ensures that alerts are

sent immediately to either the police or registered

volunteers, which leads to quicker action and

potentially life-saving interventions. This efficiency

is a marked improvement compared to the slower

response times of traditional systems.

The false alarm rate is considerably lower with the

proposed system. It incorporates real-time audio

verification, enabling authorities to assess the

situation accurately before dispatching help. This

feature ensures that unnecessary police interventions

are minimized, unlike existing systems where false

alarms can be more frequent.The proposed system

operates independently of internet connectivity,

which is a major advantage. By relying on SMS and

GSM communication, the system remains functional

even in areas with poor network coverage, making it

accessible in remote locations where traditional

mobile apps might fail.

Community assistance is greatly enhanced. The

system effectively mobilizes nearby volunteers by

sending them SOS messages and ensuring their

phones ring loudly, even if they are offline. This

community-driven approach means that help is

always available, even when law enforcement is not

immediately nearby.

Overall, the proposed safety system is more

reliable, responsive, and community-oriented. It

offers significant advancements in response time,

accuracy, network independence, and volunteer

engagement, making it a superior solution for

ensuring safety compared to existing systems. Table

1 shows the analysis and figure 4 shows the analysis

chart.

Table 1: Analysis Table.

Content Existing

System

Propose

stem

Res

onse Time 40% 85%

False Alarm Rate 20% 70%

Network Dependenc

30% 90%

Community Assistance 50% 95%

Figure 4: Analysis Chart.

Modern Safety Device for Women’s Protection Using IoT

7 SOFTWARE

IMPLEMENTATION

7.1 Android App: Client Software

The Android app is designed to provide users with a

seamless and intuitive interface for activating the

emergency alert system. Upon launching the app,

users are greeted with a simple home screen that

features an emergency button prominently displayed.

When this button is pressed, the app immediately

fetches the user's current location using the built-in

GPS module and sends an SOS message via SMS to

the police admin server. The app also initiates a live

audio call to verify the emergency. Users can also

within a 500-meter radius and participating in

coordinated group chats for assistance. Figure 5

shows the mobile application.

Figure 5: Mobile Application.

7.2 Windows App: Admin Software

The Windows app provides a robust and user-friendly

platform for managing the emergency alert system.

The main dashboard offers an overview of all active

alerts and their statuses. Police admins can monitor

incoming SOS messages, initiate live audio calls for

verification, and assign nearby officers to genuine

emergencies. The app also integrates the Volunteer

Assistance System, displaying the locations of

registered volunteers and enabling admins to send

SOS messages. Volunteers can accept alerts, join

group chats, and coordinate their response directly

from the app. Figure 6 and 7 shows the admin panel

and AI analysis.

Figure 6: Admin Panel.

Figure 7: AI Analysis.

8 FUTURE ENHANCEMENTS

Artificial intelligence (AI) and machine learning

(ML) could be used to support predictive modeling

and behavioural tracking, which could then be used to

intervene when there is a potential risk for those

behaviors to occur. This will be accomplished by

extended battery and power operation, improved

usability with smart devices, and extended

connectivity between smart devices and construction

of an integrated safety mesh. This may be achieved

through the increased robustness of geofencing and

real-time video streaming and aided by voice control

which can be used for convenience and lifting.The

existence of an ability for increasing data security

and, as a result, establishing trust between the users,

results from the enhancement. These developments

will guarantee that MSDW will continue to lead the

field, an agile solution to a woman's individual

insecurity.

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Modern Safety Device for Women’s Protection Using IoT