research and development of a mountain climber observation
TRANSCRIPT
THE INSTITUTE OF ELECTRONICS, IEICE Technical Report INFORMATION AND COMMUNICATION ENGINEERS
This article is a technical report without peer review, and its polished and/or extended version may be published elsewhere.
Copyright ©20 by IEICE
380-8553 4-17-1 ( ) 399-8303 7557-1
E-mail: [email protected]
GPS
LPWA LoRa
Research and Development of a Mountain Climber Observation System Yasushi FUWA Kouhei NOGUCHI Haruhiko NAKAMURA Yosihiro CYOUSOKABE
Yamato AMARI and David ASANO
Shinshu University 4-17-1 Wakasato, Nagano-shi, Nagano, 380-8553 Japan Circuit Design, Inc. 7557-1 Hotaka, Asumino-shi, Nagano, 399-8303 Japan
E-mail: [email protected]
Abstract Today there is a boom in mountain climbing, and we have developed a system for observing mountain climbers in response to the problem of increasing numbers of climbers requiring rescue. With this system, climbers are observed through server management of position information sent at fixed time intervals by terminals equipped with GPS carried by climbers. Most mountainous regions are outside the service area of mobile phones, and therefore it is necessary to construct new repeater networks in mountainous regions. However, many mountainous regions are designated as national parks, and there are difficulties with installing many repeaters. There is a need to cover an entire mountain, while installing in the mountains a minimum number of repeaters with long communication range operating with low power consumption using solar power. Furthermore, the communication network must exhibit no increase in packet loss when many climbers climb with terminals. This report provides an overview of the mountain climber observation system. It also describes issues for realization, and the new communication system we are currently developing to resolve those issues. Keywords Mountain Climber Observation System LPWA LoRa
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[1] ” 29”
https://www.npa.go.jp/publications/statistics/safetylife/chiiki/300621yama_nennpou1.pdf Jun. 2018. [2] David ASANO, Daichi KUROYANAGI, Hikofumi SUZUKI, Eiki MOTOYAMA, Yasushi FUWA, “A Pseudo-TDMA MAC Protocol Using Randomly Determined Transmission Times for Landslide Prediction Wireless Sensor Networks”, IEICE Transactions on Communications, E97-B, 7, 1449-1456, 2014. [3] , , , “
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