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International Research Journal of Engineering and Technology (IRJET)

e-ISSN: 2395-0056

Volume: 13 Issue: 02 | Feb 2026

p-ISSN: 2395-0072

www.irjet.net

SAFETY SHIELD- A MULTI-LEVEL OFFLINE EMERGENCY ALERT SYSTEM FOR WOMEN Dr. S. Parthasarathy¹, Harini S 2,Deeksha G 3, Peraambigai Dhevi V S 4, Sivasusila S 5 , Mr. R. Thangasankaran 6 1 Professor, Department of Electrical and Electronics Engineering 6 Assistant Professor, Department of Electrical and Electronics Engineering 2,3 Undergraduate Students, Department of Information Technology

4,5 Undergraduate Students, Department of Computer Science and Engineering

K.L.N. College of Engineering, Sivagangai, Tamil Nadu, India ---------------------------------------------------------------------***----------------------------------------------------------------------

Abstract – Mobile-based women safety applications have

emerged as an effective medium for providing immediate assistance during emergency situations. Despite their increasing adoption, a significant limitation in many existing systems is their dependence on continuous internet connectivity. In real-world scenarios such as network outages, low-signal regions, or power constraints, this dependency can disrupt alert delivery and reduce system reliability during critical moments. This paper presents Safety Shield, a women safety mobile application developed to ensure consistent and reliable emergency alert generation under both online and offline conditions. The system classifies emergency situations into three categories—unsafe, mid danger, and most danger— and enables alert activation through multiple mechanisms, including SOS button interaction, device shake detection, and voice-based commands. In the absence of internet connectivity, the application switches to SMS-based communication and incorporates an OTP verification mechanism to confirm rescue acknowledgment. Each generated alert includes essential contextual information such as the selected danger level, the user’s geographical location, and the device battery status, allowing responders to better assess the situation. The system was evaluated under controlled usage conditions to examine alert triggering accuracy, delivery reliability, and offline behavior. The results demonstrate that the proposed approach improves alert continuity and response assurance when compared to conventional solutions that rely exclusively on internet-based communication. Key Words: Women safety, offline alert system, emergency response, OTP confirmation, mobile application, Flutter-based system

I. INTRODUCTION Concerns related to women’s personal safety continue to increase across urban and semi-urban environments. While the widespread use of smartphones presents an opportunity to deliver rapid emergency assistance through mobile applications, practical challenges often

arise during real-life distress situations. Conditions such as poor network availability, sudden panic, and restricted ability to interact with application interfaces can significantly reduce the effectiveness of existing safety solutions. Several women safety applications provide functionalities such as SOS alerts, live location sharing, and emergency contact notifications. However, most of these systems rely primarily on active internet connectivity for alert transmission and confirmation. Experimental observations indicate that alerts may fail or experience delays when mobile data is unavailable, even though basic communication services such as SMS remain functional. Additionally, applications that depend on a single alerttriggering mechanism may not be reliable when the user is unable to operate the device manually during an emergency. To address these limitations, this work proposes Safety Shield, a multi-trigger women safety application designed to function reliably under varying network conditions. The system integrates multiple alert activation methods and introduces an offline confirmation mechanism to ensure that emergency notifications are both delivered and acknowledged. The primary objective of this study is to enhance alert reliability and provide users with assurance that assistance has been successfully initiated, even in environments with limited or no internet

II.PROBLEM STATEMENT Despite the growing availability of mobile-based women safety applications, real-world emergency response remains constrained by structural and operational limitations within existing systems. Most current solutions depend heavily on uninterrupted internet connectivity for alert dissemination, live location sharing, and responder notification. In practical emergency scenarios, such dependency proves unreliable due to network outages, low signal availability, or battery constraints, resulting in delayed or failed alerts. This creates a critical gap between the moment assistance is required and the time help is actually initiated.