Abstract
In this paper, we analyze requirements of next generation 112 emergency services in the era of ubiquitous mobile devices and sensors and present the design, implementation, and piloting results of our testbed, which was developed within the H2020 project NEXES. The system leverages a multihop location-aware PEMEA routing network that finds the geographically closest responsible public service answering point (PSAP) and supports cross-border application roaming. Our reference mobile implementation utilizes multiple device and network-based positioning technologies, which, combined, both outperform traditional cell-tower based positioning and provide a means for detecting fraudulent calls. The system is extensible and can establish a variety of communication channels after the initial emergency session is set up; we demonstrate this with an interoperable WebRTC-based video call. The obtained results demonstrate the viability and flexibility of PEMEA-based over-the-top emergency services, show high user acceptance when comparing them with existing solutions, and thus pave the road for further rollout of such systems.
Highlights
In recent years, ubiquitous sensing and positioning have enhanced several applications for general population
The operator can decide to establish a video call and patches a sign language interpreter into the multiparty video call to help with communication
In this article we presented the design of a generation 112 emergency system based on the Pan-European Mobile Emergency Application (PEMEA) protocol
Summary
Ubiquitous sensing and positioning have enhanced several applications for general population. Commercial applications even extend to indoor positioning based on advanced Wi-Fi network models and Bluetooth beacons [1]. Emergency services throughout the world are still largely relying on network-based mobile phone tracking, which either utilizes cell identification, cell coverage, triangulation, or trilateration. Such approaches yield accuracy in the range of a couple of hundred meters at best, which is much worse than the previous landline number-to-location mapping. For improved emergency services a better location is needed, which has to be provided either by a denser deployment of base stations [2] or by other sensors or mechanisms, implemented in the handset itself [3,4,5]
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