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Updated: Jul 30, 2025

Methodology for Establishing a Community-Wide Life Laboratory for Capturing Unobtrusive and Continuous Remote Activity and Health Data
Published on: July 27, 2018
Building performance simulations can inform IoT privacy leaks in buildings
Alan Wang1, Bradford Campbell2, Arsalan Heydarian3
1Link Lab, Computer Engineering, University of Virginia, Charlottesville, 22903, USA.
Optimizing sensor placement minimizes privacy risks from Internet of Things (IoT) devices. Physics-based simulations show how strategic sensor placement can capture environmental data without overreaching into sensitive occupant information.
Area of Science:
- Computer Science
- Ubiquitous Computing
- Privacy Engineering
Background:
- Internet of Things (IoT) devices are increasingly prevalent, raising privacy concerns.
- Indoor Environmental Quality (IEQ) sensors, intended for energy and health, can infer sensitive occupant data.
- Light sensors, for instance, can detect occupancy, identity, and screen information.
Purpose of the Study:
- To explore sensor placement as a methodology for mitigating privacy risks.
- To quantify the minimal number of sensor positions needed for sensitive inferences using simulations.
- To develop a workflow for respectful capture of inferable occupant activity.
Main Methods:
- Utilizing physics-based simulation models to analyze sensor data.
- Evaluating sensor placement strategies in various building contexts.
- Developing a device-agnostic and building-adaptive workflow.
Main Results:
- A single, strategically placed sensor can capture holistic environmental states in certain contexts.
- Additional sensors can enhance the granularity of inferred occupant activity.
- Simulation models effectively quantify the necessary sensor positions.
Conclusions:
- Sensor placement is a viable strategy to manage privacy risks associated with IEQ sensors.
- Physics-based simulations offer a powerful tool for designing privacy-aware sensing systems.
- Integrating building simulations into sensing schemes is crucial for real-world applications.
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