Japan Geoscience Union Meeting 2025

Presentation information

[J] Poster

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

[M-GI31] Earth and planetary informatics and data utilization

Tue. May 27, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

convener:Susumu Nonogaki(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Ken T. Murata(National Institute of Information and Communications Technology), Keiichiro Fukazawa(Research Institute for Humanity and Nature), Yukari Kido(Japan Agency for Marine-Earth Science and Technology)

5:15 PM - 7:15 PM

[MGI31-P13] Development of LPWA and visual IoT techniques (6): WoR-type LoRa communication tool experiments

*Takamichi Mizuhara1, Masataka Morioka1, Ken T. Murata2, Kazutaka Kikuta2 (1.CLEALINK TECHNOLOGY CO., LTD., 2.National Institute of Information and Communications Technology)

Keywords:LPWA, LoRa, Visual IoT

Visual Internet of Things (IoT) is a class of IoT that collects rich visual data. In general, the visual IoT device is equipped with a video transmission equipment such as a camera. The involved technologies are advanced video transmission techniques and information extraction from images by image recognition techniques. However, since the video data size is larger than the sensor data size, one of the issues of visual IoT is high-performance video transmission in networks in which the bandwidths are limited. In this paper, we design and develop a real-time monitoring system using visual IoT device. Our system is based on a novel protocol, named high-performance video transmission (HpVT), for field monitoring via 4G LTE mobile networks.
In this presentation, we propose a new energy-harvesting LoRa communication protocol for LoRa communication systems in mountainous areas where there is no electric power supply. Specifically, we propose a communication method that reliably transmits sensor data installed in mobile communication dead zones over a serial network rather than a mesh network. Furthermore, we conduct transmission experiments using this protocol in the field for a certain period to verify its practicality.
Furthermore, we conduct data transmission experiments using this protocol in the field for a certain period of time to verify its practicality. In this presentation, we report on an experiment in which six environmental sensors (temperature and humidity measurement) and four communication nodes are installed in an actual field (agricultural field), and the sensors and communication nodes are operated for more than few months without any external power (solar power generation only). Based on the results of this experiment, we propose a method for collecting data anywhere in various Earth science fields, such as volcano observation, earthquake observation, and river/coast observation.
This work is supported by "Joint Usage/Research Center for Interdisciplinary Large-scale Information Infrastructures" and "High Performance Computing Infrastructure" in Japan (Project ID: jh230057 and jh240077), by JSPS KAKENHI Grant Number JP22H01318 and by Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), Development of a Resilient Smart Network System against Natural Disasters (Funding agency: NIED).