SHIELD: Social sensing and Help In Emergency using mobiLe Devices
Gautam S. Thakur, Mukul Sharma, Ahmed Helmy

TL;DR
SHIELD is a proximity-based emergency alert system for campuses that uses Bluetooth and WiFi to enable rapid, localized responses, potentially reducing crime and improving safety during emergencies.
Contribution
The paper introduces SHIELD, a novel decentralized platform leveraging proximity sensing for immediate campus emergency response, enhancing traditional systems.
Findings
Strong correlation (over 55%) between campus crime and mobile user density.
Prototype implementation demonstrates feasibility of proximity-based alerts.
Potential to reduce response times and deter crimes.
Abstract
School and College campuses face a perceived threat of violent crimes and require a realistic plan against unpredictable emergencies and disasters. Existing emergency systems (e.g., 911, campus-wide alerts) are quite useful, but provide delayed response (often tens of minutes) and do not utilize proximity or locality. There is a need to augment such systems with proximity-based systems for more immediate response to attempt to prevent and deter crime. In this paper we propose SHIELD, an on-campus emergency rescue and alert management service. It is a fully distributed infrastructure-less platform based on proximity-enabled trust and cooperation. It relies on localized responses, sent using Bluetooth and/or WiFi on the fly to achieve minimal response time and maximal availability thereby augmenting the traditional notion of emergency services. Analysis of campus crime statistics and WLAN…
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Taxonomy
TopicsOpportunistic and Delay-Tolerant Networks · Mobile Ad Hoc Networks · Vehicular Ad Hoc Networks (VANETs)
