Browsing in the virtual museum of the sarcophagi in the Basilica of St. Silvestro at the Catacombs of Priscilla in Rome

Pecchioli, Laura; Pucci, Marina; Mohamed, Fawzi; Mazzei, Barbara

doi:10.1109/vsmm.2012.6365953

Cited by 8 publications

(1 citation statement)

References 4 publications

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“…Similarly, Ozdenuzci et al [ 15 ] implemented an NFC proximity system to display location information for a user carrying a smartphone. A similar design was followed by Pecchioli et al using QR codes [ 29 ]. Despite having a 100% accuracy detection rate, NFC and QR proximity systems require the user to be very close to the transmitter, usually in the range of centimeters, which is impractical for most real applications [ 30 ].…”

Section: Related Workmentioning

confidence: 99%

Noise-Resilient Acoustic Low Energy Beacon for Proximity-Based Indoor Positioning Systems

Aguilera

Aranda

Parralejo

et al. 2021

Sensors

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Proximity-Based Indoor Positioning Systems (PIPSs) are a simple to install alternative in large facilities. Besides, these systems have a reduced computational cost on the mobile device of those users who do not continuously demand a high location accuracy. This work presents the design of an Acoustic Low Energy (ALE) beacon based on the emission of inaudible Linear Frequency Modulated (LFM) signals. This coding scheme provides high robustness to in-band noise, thus ensuring a reliable detection of the beacon at a practical range, after pulse compression. A series of experimental tests have been carried out with nine different Android devices to study the system performance. These tests have shown that the ALE beacon can be detected at one meter distance with signal-to-noise ratios as low as −12 dB. The tests have also demonstrated a detection rate above 80% for reception angles up to 50∘ with respect to the beacon’s acoustic axis at the same distance. Finally, a study of the ALE beacon energy consumption has been conducted demonstrating comparable power consumption to commercial Bluetooth Low Energy (BLE) beacons. Besides, the ALE beacon search can save up to 9% more battery of the Android devices than the BLE beacon scanning.

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Section: Related Workmentioning

confidence: 99%