Synchronization of a real-time UWB locating system

US9413418B2 · kind B2 · utility

Assignees

• Datalogic IP Tech S.R.L. · IT
• Consorzio Nazionale Interuniversitario per le Telecomunicazione · IT
• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Marco Bottazzi · Ferrara, IT
• Enrico Savioli · Bologna, IT
• Federico Natali · Bologna, IT
• Niels Hadaschik · Erlangen, DE
• Davide Dardari · Savignano sul Rubicone, IT
• Andrea Conti · Bologna, IT

Key dates

• Filing date: Jul 12, 2012
• Grant date: Aug 9, 2016
• Expiry date: Jul 12, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S13/878
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a UWB real time locating system, UWB readers (12) are synchronized by adjusting a clock of a UWB slave reader (12) until the UWB reader (12) receives each UWB pulse (34) of a sequence of UWB pulses (34) having a predetermined pulse period (Tp) and encoding a master UWB reader unique identifier at an expected time slot (35) within each predetermined pulse period (Tp), the expected time slot (35) being related to the distance between the UWB tag reader (12) and a master UWB reader (12).