成果報告書詳細
管理番号20150000000462
タイトル*平成26年度中間年報 SIP(戦略的イノベーション創造プログラム) インフラ維持管理・更新・マネジメント技術 モニタリングシステムの現場実証 ラジコンボートを用いた港湾構造物の点検・診断システムの研究開発
公開日2015/7/18
報告書年度2014 - 2014
委託先名五洋建設株式会社
プロジェクト番号P14031
部署名ロボット・機械システム部
和文要約
英文要約Title:SIP(Cross-ministerial Strategic Innovation promotion Program) / Infrastructure maintenance, update and management technology / Field demonstration of monitoring system / Research and development of inspection and diagnosis system of marine structures using a remote controlled boat (FY2014-FY2016) FY2014 Annual Report

1. We constructed a system to capture the image of the underside of the pier superstructure by mounting an inspection camera on a small radio-controlled boat. We installed this camera by using a high performance Gimbal (oscillation suppressor), and thus, by reducing the impact of oscillations due to the waves, we were able to capture stable images.
2. We installed two transmitters to send images to a monitor located on top of the pier in real time and thus provide the functionality to steer the radio-controlled boat and collect the captured images (video and still images) from the top of the pier.
3. We studied the applicability of the abovementioned technologies in real sea water through a field demonstration and carried out further improvement. We carried out this exercise with objective of identifying the challenges associated with the applicability of this inspection and diagnostic system in real sea water and enhancing this technology.
Inspection items:
To check whether high-resolution imaging of deteriorated portions of the underside of a pier is possible or not
To check whether captured images can be transmitted to the top of the pier
Date and time:
February 24, 2015 (Tuesday) (First communication test),March 9, 2015 (Monday) and March 10, 2015 (Tuesday) (Second communication test and field demonstration)
Implementation site: Quay No. 1, Quay No. 2, Minatomirai, Central district (1-7 regions, 1 Chome, Minatomirai, Nishi Ku, Yokohama City, Kanagawa Prefecture)

Field demonstration results:
1. Latency in image transmission disappeared, and it was confirmed that the images were displayed in real time on the monitor.
2. We added one steering device to control the Gimbal operation and connected the two devices using a cable and suspended one of the devices from the top of the bridge. Thus, stable communication could be achieved.
3. While the inspection camera provided stable images, image transmission by the control camera was interrupted at times and was a little unstable. We intend to study a method to improve this.
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