Exposure Visualization Tool

Overview

The Exposure Visualization Tool is a GUI application used to view the details and results of mobile contact-tracing testing with Exposure Notification (EN) apps. The scenarios visualized involve multiple agents (phone-carriers) in a scene with EN enabled on their phone, after which a "sick" agent shares its status and an alert of exposure may be received by the other agents. This tool was created to analyze and present EN data collected by the MITLL-PACT team in collaboration with the University of Arizona. A formatted version of these data is provided in the MITLL-UA folder and can be viewed with this tool or used as a template for custom data. Some data files including the phone "dumpsys" logs are reduced to contain only the relevant data for this application.

Features

• Information panel: Provides information on the test, "sick" and selected agents and their respective phones, including distance, phone hardware, phone placement, and exposure level.
• 2D scene viewer: Displays a top-down representation of the test environment and agent placements. Agents are color-coded based on the level of exposure reported by their phone, or if designated as the "sick" agent. The user can slide the simulated test time forward or backward to adjust the placement of moving agents.
• Attenuation graph: Shows both the average and range of signal attenuation received by the selected phone from the sick phone as a function of time, as well as attenuation threshold boundaries and the current simulated test time.

The related PACT-Beacons dataset can be found here.