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Presentation 2020-11-09 16:20
Development and Evaluation of a Large-Scale Sensing System Using UAV and Long-Range Hierarchical Wireless Communications
Yoshihiro Higashiura, Hiroshi Yamamoto (Ritsumeikan Univ.) IA2020-22
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, countries where agriculture is a major industry own vast tracts of farmland, and IoT system to improve the efficiency of farming operations on the vast farmland are attracting attention. In order to collect environmental information from anyway of the vast farmland, the construction of sensor networks using LPWA that enables long-distance communication has been attracting attention. However, many obstacles such as crops and agricultural machinery on the farm makes long-distance wireless communication difficult even when using the LPWA.In addition, even when the clear line of sight from the sensor nodes is ensured, the radio waves may interfere with each other, which makes the gateway impossible to receive the sensor data correctly.
Therefore, in this research, we develop a sensor network system using an Unmanned Aerial Vehicle (UAV) that can move freely in the sky.The UAV works as a gateway to collect the sensor data from the sensor nodes and move autonomously for searching the locations where they can maintain good communication property from sensor nodes dispersed over a wide area of a large farm. Furthermore, in order to improve the efficiency of the sensor data retrieval, the sensor nodes within the same area of the farm construct clusters and select one representative node in each cluster. In addition, in order to prevent radio interference caused by simultaneous data transmission, the sensor nodes are implements media access control mechanism for LPWA.
Keyword (in Japanese) (See Japanese page) 
(in English) UAV / Localization / Autonomous Flight / LPWA / Media Access Control / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 227, IA2020-22, pp. 27-32, Nov. 2020.
Paper # IA2020-22 
Date of Issue 2020-11-02 (IA) 
ISSN Online edition: ISSN 2432-6380
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 2020-11-09 - 2020-11-09 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Student Sessions, etc. (cosponsored by JSPS 163rd Committee on Internet Technology) 
Paper Information
Registration To IA 
Conference Code 2020-11-IA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development and Evaluation of a Large-Scale Sensing System Using UAV and Long-Range Hierarchical Wireless Communications 
Sub Title (in English)  
Keyword(1) UAV  
Keyword(2) Localization  
Keyword(3) Autonomous Flight  
Keyword(4) LPWA  
Keyword(5) Media Access Control  
1st Author's Name Yoshihiro Higashiura  
1st Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
2nd Author's Name Hiroshi Yamamoto  
2nd Author's Affiliation Ritsumeikan University (Ritsumeikan Univ.)
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Speaker Author-1 
Date Time 2020-11-09 16:20:00 
Presentation Time 22 minutes 
Registration for IA 
Paper # IA2020-22 
Volume (vol) vol.120 
Number (no) no.227 
Page pp.27-32 
Date of Issue 2020-11-02 (IA) 

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