We introduced the TALLA system (TDoA Localization for Large-scale Areas) based on TDoA techniques. The TALLA user, equipped with a tag, is tracked through areas of arbitrary width, unlike the state of the art in which localization takes place in a specific “cell” delimited by anchors. In TALLA, these are not necessarily in range with respect to each other; their temporal synchronization takes place in multi-hop using a protocol that guarantees positioning accuracy equal to traditional systems. The work received the “best paper award” at IPIN’19, a reference conference for the localization community.
TALLA was used within more complex systems. First in logistics, implemented in the EIT D-TWIN project. In addition, TALLA was used for the collection of visitor trajectories at the MUSE in Trento, enabling research on mobility patterns in collaboration with UNIMI.

Large-scale deployments with anchor self-localization