What is measured, and what is not.
The library equipment records Wi-Fi channel measurements and monitors Bluetooth Low Energy transmissions. Volunteer app sessions are invitation-only.
What is measured
The boxes in the FIIT library record Channel State Information (CSI): measurements describing how Wi-Fi signals arrive at a receiver. People and objects affect those signals, whether or not they carry a phone.
Bluetooth Low Energy (BLE) monitoring is already active. It observes transmissions from nearby Bluetooth devices. This is separate from CSI and does not depend on joining the volunteer beta.
The sensing boxes have no cameras or microphones. Radio measurements can still contain information about devices and movement, so the absence of a camera should not be read as a promise that every recording is anonymous.
Volunteer app sessions
The app is not publicly available yet. Volunteers will first be invited to a beta; app-store distribution is planned later.
Joining an invitation list does not enrol you in a measurement session. Before taking part, read the session information explaining the task and the phone measurements it uses. You can decide whether to join and can stop participating without giving a reason.
Switching off your phone’s radios does not remove your effect on the Wi-Fi channel. Nor does it delete an earlier recording.
Beta invitations and email
The participation page explains how to express interest. If you email us, your message includes your email address and whatever information you choose to send.
A beta signup asks for an email address so that we can send you an invitation. It is separate from a research account and from consent to take part in a study. If the form also offers general project updates, that is a separate choice.
Questions about recordings
Contact Jakub Dubec at jakub.dubec@stuba.sk for questions about the deployment, the data recorded in a session, or a request concerning your data. If your question concerns a library visit, include the approximate time and place so that we can check the relevant recording.
The ability to identify and remove a particular record depends on what was recorded and whether it can be linked to your session. This page does not promise that an individual can be isolated from a room’s CSI measurement.
The project is doctoral research at the Faculty of Informatics and Information Technologies, Slovak University of Technology in Bratislava.
Contact
Questions, objections, or a request to be told more: jakub.dubec@stuba.sk.