Title:
異常検出装置、水門システムおよび異常検出方法
Document Type and Number:
Japanese Patent JP7395443
Kind Code:
B2
Abstract:
To properly detect abnormality in a radial gate.SOLUTION: In a radial gate, a door body and a driving portion are connected by a connection medium. In the door body, a skin plate and a bearing portion are connected by a leg post. A load value acquisition portion 46 of an abnormality detection device 40 acquires a value representing a load applied to the connection medium as a bearing load value. An evaluation value acquisition portion 47 acquires a value representing a stress applied to the leg post as a leg post evaluation value. A normal value estimation portion 41 estimates a normal value of the leg post evaluation value based on a water level at an installation position of the radial gate, an opening of the door body, and the bearing load value. A determination portion 42 determines presence/absence of abnormality in the radial gate by comparing the leg post evaluation value acquired by the evaluation value acquisition portion 47 with the normal value estimated by the normal value estimation portion 41. Thus, abnormality in the radial gate can be properly detected.SELECTED DRAWING: Figure 3
Inventors:
Ryo Yamashita
Application Number:
JP2020141505A
Publication Date:
December 11, 2023
Filing Date:
August 25, 2020
Export Citation:
Assignee:
Hitachi Zosen Corporation
International Classes:
E02B7/42
Domestic Patent References:
| JP2007113967A | ||||
| JP7247536A | ||||
| JP63130533U | ||||
| JP7042137A | ||||
| JP2019028565A | ||||
| JP2011059790A | ||||
| JP8134878A | ||||
| JP2016191197A |
Other References:
塩竃 裕三,ラジアルゲート支障部の摩擦抵抗モニタリング,土木学会論文集A,VOL.65,No.1,日本,土木学会,2009年01月,第1-14頁
Attorney, Agent or Firm:
Masahiro Matsuzaka
Tsutomu Tanaka
Yamamura Issei
Tsutomu Tanaka
Yamamura Issei