Underground Infrastructure Management System using Internet of Things Wireless Transmission Technology

Yo YAMAGUCHI  Yosuke FUJINO  Hajime KATSUDA  Marina NAKANO  Hiroyuki FUKUMOTO  Shigeru TERUHI  Kazunori AKABANE  Shuichi YOSHINO  

IEICE TRANSACTIONS on Electronics   Vol.E101-C   No.10   pp.727-733
Publication Date: 2018/10/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E101.C.727
Type of Manuscript: INVITED PAPER (Special Section on Microwave and Millimeter-Wave Technologies)
IoT wireless access networks,  920 MHz Band,  Propagation from underground manholes,  IoT services,  

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This paper presents a water leakage monitoring system that gathers acoustic data of water pipes using wireless communication technology and identifies the sound of water leakage using machine leaning technology. To collect acoustic data effectively, this system combines three types of data-collection methods: drive-by, walk-by, and static. To design this system, it is important to ascertain the wireless communication distance that can be achieved with sensors installed in a basement. This paper also reports on radio propagation from underground manholes made from reinforced concrete and resin concrete in residential and commercial areas using the 920 MHz band. We reveal that it is possible to design a practical system that uses radio communication from underground sensors.