TrackSafe utilizes Wi-Fi signals from devices, such as mobile phones, combined with strategically placed sensors in areas near a crowd. Combining the information on radio signal strengths, gathered by several sensors, TrackSafe is able to estimate a position. Therefore, using a number of unique devices within a given area gives an indication of the crowd density. The position is tracked over time and enables the system to derive a direction of movement in the crowd.
Information about festival guests and their positions in real-time can be used to measure waiting lines in front of the different food shops, distribute resources based on people behavior, and crowd safety supervisors can monitor people density.
At Roskilde Festival 2016 we are helping Food Court by providing location analytics based on position tracking of festival guests inside the Food Court. This information helps the vendors estimate visitor behavior during the day, to identify periods with few visitors as well as rush hours. This can help optimizing food production and potentially eliminate waste.
A Wi-Fi signal receiver is constructed using a small Raspberry Pi computer and a Wi-Fi module. The sensors only listen for Wi-Fi devices in monitor mode, which do not require any action of the device owner. Using a newly developed algorithm enables this system to fully comply with the European Data Protection law.
For more information, please contact info@roskilde.dtu.dk