Automatic Deterioration Evaluation Technique to Improve the Efficiency of Manhole Inspection

被引：0

作者：

Furukawa T. ^{[1
]}

Saito C. ^{[1
]}

Okutsu M. ^{[1
]}

Takahashi H. ^{[2
]}

Nakagawa M. ^{[3
]}

Yanagi S. ^{[1
]}

机构：

[1] Civil Engineering Project, NTT Access Network Service Systems Laboratories

[2] R&D Promotion, Research and Planning Department, NTT

[3] Civil System Project, NTT Access Network Service Systems Laboratories

来源：

NTT Technical Review | 2023年 / 16卷 / 01期

关键词：

automatic deterioration evaluation; manholes; non-entry inspection;

D O I：

10.53829/ntr201801fa2

中图分类号：

学科分类号：

摘要：

We have developed a non-entry manhole inspection technique with a function for automatic deterioration judgment. This enables workers to operate safely without having to enter manholes and can eliminate the need to drain manholes, substantially reducing the inspection workload. This technique not only improves the safety and efficiency of manhole inspections but also yields high-resolution inspection images that can be used to accurately predict the deterioration of facilities. It can therefore play an important role in improving the maintenance cycle. © 2023 Nippon Telegraph and Telephone Corp.. All rights reserved.

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