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| Presentation | 2015-01-27 09:00 Measurement of wireless communication characteristics in sewer pipes for sewer inspection systems using multiple wireless nodes -- 920MHz and 5GHz band -- Taiki Nagashima, Yudai Tanaka, Susumu Ishihara (Shizuoka Univ.)  ASN2014-136 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Deterioration of sewer pipes is one of the very important problems in Japan. Sewer inspections have been done by mainly visual check or wired robots. However such inspection schemes involve high labor and/or monetary cost. Sewer inspection with boat-type video cameras or unwired robots takes a long time to check the result of the inspection. To realize low cost, safe and quick inspection of sewer pipes, we have proposed a sewer inspection system using drifting wireless sensor nodes. Water, Soil, and the narrow space in the pipe makes the long range wireless communication difficult. Therefore, we have to identify suitable frequency based on wireless communication characteristics in sewer pipes. If the frequency is high, the Fresnel zone the needed space for line of sight is small, but the path loss becomes worse. On the other hand, if the frequency is low, the Fresnel zone size is large, but the path loss becomes small. We conducted wireless communication using 920MHz, 2.4GHz and 5GHz band in an experimental underground pipe. The measurement results show that the wireless communication distance of 5GHz is longer than 920MHz, 2.4GHz and is 5m with 10mW. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Sewer inspection / Sensor network / Wireless communication characteristics measurement / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 418, ASN2014-136, pp. 139-144, Jan. 2015. | |
| Paper # | ASN2014-136 | |
| Date of Issue | 2015-01-19 (ASN) | |
| ISSN | Print edition: ISSN 0913-5685 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 | ASN2014-136 |
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| Conference Information | |
| Committee | MICT ASN MoNA |
| Conference Date | 2015-01-26 - 2015-01-27 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nanki Shirahama |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Ambient intelligence, ICT for Medical, Healthcare and Sports, etc |
| Paper Information | |
| Registration To | ASN |
| Conference Code | 2015-01-MICT-ASN-MoNA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement of wireless communication characteristics in sewer pipes for sewer inspection systems using multiple wireless nodes |
| Sub Title (in English) | 920MHz and 5GHz band |
| Keyword(1) | Sewer inspection |
| Keyword(2) | Sensor network |
| Keyword(3) | Wireless communication characteristics measurement |
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| 1st Author's Name | Taiki Nagashima |
| 1st Author's Affiliation | Shizuoka University (Shizuoka Univ.) |
| 2nd Author's Name | Yudai Tanaka |
| 2nd Author's Affiliation | Shizuoka University (Shizuoka Univ.) |
| 3rd Author's Name | Susumu Ishihara |
| 3rd Author's Affiliation | Shizuoka University (Shizuoka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2015-01-27 09:00:00 |
| Presentation Time | 25 minutes |
| Registration for | ASN |
| Paper # | ASN2014-136 |
| Volume (vol) | vol.114 |
| Number (no) | no.418 |
| Page | pp.139-144 |
| #Pages | 6 |
| Date of Issue | 2015-01-19 (ASN) |
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