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Paper Abstract and Keywords
Presentation 2026-03-02 17:05
Development and Operational Evaluation of a Lightweight Water Management Support System Based on Water Level Anomaly Detection for Agricultural Canals
KounosukeKishi (Tokyo Denki Univ.), Kennichi Nonaka (Rikkyo Univ.), Masayuki Iwai (Tokyo Denki Univ.) SeMI2025-76
Abstract (in Japanese) (See Japanese page) 
(in English) Water management in paddy rice cultivation is labor-intensive, and labor-saving support is increasingly required due to aging farmers and labor shortages. However, existing automatic systems often rely on multi-point sensing and continuous communication, leading to high deployment and maintenance costs.

This study proposes a low-cost and practical water management support system based on single-point water level observation using a low-power microcontroller and an LTE Cat-M1 network. The system was deployed in a real agricultural canal for approximately 10 days (960 transmissions), achieving a data transmission success rate of 98.65%.

An EWMA-based anomaly detection method was applied to water level time-series data sampled at 15-minute intervals. As a result, 8 of 11 water level change events were detected, and 5 of 7 true anomalies requiring management actions were correctly identified (precision 0.63, recall 0.71, F1-score 0.67).

These results indicate that combining single-point observation with a lightweight statistical method enables practical water management support in communication-constrained agricultural environments.
Keyword (in Japanese) (See Japanese page) 
(in English) Agricultural IoT / Water Management / Anomaly Detection / EWMA / LTE Cat-M1 / XIAO ESP32C6 / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 367, SeMI2025-76, pp. 58-63, March 2026.
Paper # SeMI2025-76 
Date of Issue 2026-02-22 (SeMI) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
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)
Download PDF SeMI2025-76

Conference Information
Committee SeMI IPSJ-MBL IPSJ-UBI  
Conference Date 2026-03-01 - 2026-03-02 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SeMI 
Conference Code 2026-03-SeMI-MBL-UBI 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development and Operational Evaluation of a Lightweight Water Management Support System Based on Water Level Anomaly Detection for Agricultural Canals 
Sub Title (in English)  
Keyword(1) Agricultural IoT  
Keyword(2) Water Management  
Keyword(3) Anomaly Detection  
Keyword(4) EWMA  
Keyword(5) LTE Cat-M1  
Keyword(6) XIAO ESP32C6  
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Keyword(8)  
1st Author's Name KounosukeKishi  
1st Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
2nd Author's Name Kennichi Nonaka  
2nd Author's Affiliation RikkyoUniversity (Rikkyo Univ.)
3rd Author's Name Masayuki Iwai  
3rd Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
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Speaker Author-1 
Date Time 2026-03-02 17:05:00 
Presentation Time 25 minutes 
Registration for SeMI 
Paper # SeMI2025-76 
Volume (vol) vol.125 
Number (no) no.367 
Page pp.58-63 
#Pages 6 
Date of Issue 2026-02-22 (SeMI) 

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