Prof. Ruizhi Chen, the State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS), Wuhan University
Presentation title: Positioning Indoors Using Sound
Abstract
Indoor positioning is a core technology enabling artificial intelligence (AI) applications and playing a pivotal role in AI solutions. However, to develop a positioning solution indoors with high accuracy is still challenging,affected by the complexity of the indoor spaces.
Currently, various indoor positioning technologies are appealing in the market, such as the Ultra-Wideband (UWB), WiFi-RTT, Bluetooth AoA/AoD, and AR-based localization et.al. This presentation will introduce an indoor positioning technology based on acoustic waves. It utilizes the microphone built-in smartphones as receivers, and offers a ranging accuracy of 0.12 meters and a positioning accuracy of 0.3 meters for all smartphones without changing their hardware. The precise ranging technology has also been implemented in a single chip to support positioning tag development. It has been commercially deployed in airports, railway stations, convention centers in China.
Together with GNSS technology, it offers a seamless indoor/outdoor navigation service.
Biography
Dr. Ruizhi Chen is a member of the Finnish Academy of Science and Letters. He is currently a Professor at the State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS) at Wuhan University, China. He used to be the director of LIESMARS, an Endowed Chair Professor in Texas A&M University Corpus Christ, U.S. and Head & Professor of the Department of Navigation and Positioning at the Finnish Geodetic Institute, Finland. He also worked in Nokia as an Engineering Manager during 1998-2001. Dr. Chen’s research interests include indoor positioning using smartphones and satellite navigation. He has published two books in English and 156 SCI papers. His research results were selected as cover stories two times in “GPS World”.