2015 Fiscal Year Final Research Report
Development of a video transmission system using multiple cooperative drifting nodes for fast sewer inspection
| Project/Area Number |
26540034
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Information network
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| Research Institution | Shizuoka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SAWANO Hiroaki 愛知工業大学, 情報科学部, 准教授 (10609431)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | 無線LAN / 下水管検査 / センサネットワーク / 動画像処理 / 回転補正 / 移動カメラ / 間欠的通信 |
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| Outline of Final Research Achievements |
We developed elemental technologies for realizing a cost-effective fast video inspection system for underground sewer systems with multiple drifting nodes. We measured wireless communication characteristics in a underground 200mm-diameter pipe and confirmed that IEEE802.11a using 5GHz radio band achieves a longer communication distance (8m at 10mW/Hz) than other radio systems using 2.4GHz and 920MHz bands. We designed data transfer protocols for reliably retrieving video data from drifting camera nodes. One protocol is for uses multi-hop communication from a camera node to an access point via multiple relay nodes and another is for multiple cooperative camera nodes. We also designed drifting camera nodes and a video processing method for compensating the rotation of a camera in a drifting node, and confirmed the effectiveness of them.
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| Free Research Field |
情報通信工学
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