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Paper Abstract and Keywords
Presentation 2017-01-27 11:05
Development of a Rainfall Observation System utilizing 420MHz LoRa to deal with Heavy Rainfall Disaster
Hong Quan Le (Nagaoka Univ. of Technology), Tatsuhito Hoshi (Kanai Doryoukou), Hiroshi Yamamoto (Ritsumeikan Univ), Katsuyuki Yamazaki (Nagaoka Univ. of Technology) IA2016-79
Abstract (in Japanese) (See Japanese page) 
(in English) In mountainous country like Japan, sand-and-stone avalanches caused by torrential or prolonged rainfall often result in a heavy damage to people and residents in surrounding area. Data need to be collected from a large area in order to effectively forecast disasters. However, due to high mountains and deep forests, data transmission is very limited. In this study, we propose a rainfall monitoring system utilizing 420MHz LoRa. Rainfall, water level measured at mountain areas is transmitted through 420MHz LoRa to a server. The evaluation results clarified that 420MHz LoRa are capable of transmitting through 47.5km line-of-sight distance and 3.5km non-line-of-sight distance. We also implement a packet sequential retransmission method to increase system resistance to noise.
Keyword (in Japanese) (See Japanese page) 
(in English) Rainfall measure / sand and stone avalances / 420MHz / Lora / rain index R' / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 434, IA2016-79, pp. 1-6, Jan. 2017.
Paper # IA2016-79 
Date of Issue 2017-01-20 (IA) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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reproduction
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee IA  
Conference Date 2017-01-27 - 2017-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. B3 Kenshu-2 room 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Senser Network, IoT, M2M, etc. 
Paper Information
Registration To IA 
Conference Code 2017-01-IA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of a Rainfall Observation System utilizing 420MHz LoRa to deal with Heavy Rainfall Disaster 
Sub Title (in English)  
Keyword(1) Rainfall measure  
Keyword(2) sand and stone avalances  
Keyword(3) 420MHz  
Keyword(4) Lora  
Keyword(5) rain index R'  
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Keyword(8)  
1st Author's Name Hong Quan Le  
1st Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Technology)
2nd Author's Name Tatsuhito Hoshi  
2nd Author's Affiliation Kanai Doryoukou Co., Ltd. (Kanai Doryoukou)
3rd Author's Name Hiroshi Yamamoto  
3rd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ)
4th Author's Name Katsuyuki Yamazaki  
4th Author's Affiliation Nagaoka University of Technology (Nagaoka Univ. of Technology)
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Speaker Author-1 
Date Time 2017-01-27 11:05:00 
Presentation Time 25 minutes 
Registration for IA 
Paper # IA2016-79 
Volume (vol) vol.116 
Number (no) no.434 
Page pp.1-6 
#Pages
Date of Issue 2017-01-20 (IA) 


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