Japan Geoscience Union Meeting 2019

Presentation information

[J] Oral

M (Multidisciplinary and Interdisciplinary) » M-GI General Geosciences, Information Geosciences & Simulations

[M-GI37] Earth and planetary informatics with huge data management

Sun. May 26, 2019 1:45 PM - 3:15 PM 301B (3F)

convener:Ken T. Murata(National Institute of Information and Communications Technology), Rie Honda(Department of Science and Technology, System of Natual Science, Kochi University), Susumu Nonogaki(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Takeshi Horinouchi(Faculty of Environmental Earth Science, Hokkaido University), Chairperson:Susumu Nonogaki, Ken Murata(National Institute of Information and Communications Technology)

2:30 PM - 2:45 PM

[MGI37-04] Communication area map of LoRa in Chikuma city using community bus services

*Kohei Mizuani1, Ken T. Murata1, Yoshiaki Muroyama1, Kazunori Yamamoto1, Kazuya Muranaga2, Takamichi Mizuhara3, Praphan Pavarangkoon1 (1.National Institute of Information and Communications Technology, 2.Systems Engineering Consultants Co., LTD., 3.CLEALINK TECHNOLOGY Co.,Ltd.)

Keywords:IoT, LPWA, LoRa, area map

Internet of Things (IoT) where data of many sensors are collected through the Internet is one of important social infrastructure technologies. Various sorts of regional IoT technologies were developed and expected to be tools for the enhancement of public services and the resolution of public issues in the community thorough use and application of the collected data. We conducted communication environment measurement of private LoRa (Long Range), which is one of the low-power wide area (LPWA) communication technologies in Chikuma city, Nagano prefecture, Japan, using community bus services. In this experiment, we set up LoRa relay stations at three locations in the city: the Koshoku governmental building (the northern part of the city), the Togura governmental building (the southern part of the city), and the Amenomiya drainage plant (the eastern part of the city). In addition, beacon transmitters were installed in the community buses (nine routes in all). The location and time information were transferred from the routes of the buses to the NICT Science Cloud servers in real time through the relay stations. Experimental results are summarized in an area map, indicating that we succeeded in communicating in most of the bus routes and confirmed the possibility of covering the entire city by the LPWA. Even in the insensitive area of this experiment, the communication will become possible by adding several relay stations.