Electrolytic corrosion detection device, electrolytic corrosion detection method, and program

The electrolytic corrosion detection device and method effectively address the challenge of detecting and quantifying electrolytic corrosion in railway rails through image processing and machine learning, improving rail inspection efficiency.

JP7875086B2Active Publication Date: 2026-06-17NEC CORP +2
View PDF 4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NEC CORP
Filing Date
2022-09-29
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Existing technologies fail to efficiently detect electrolytic corrosion areas in railway rails, which is crucial for maintenance and inspection work.

Method used

An electrolytic corrosion detection device and method utilizing image acquisition, extraction, identification, and detection units to identify and quantify electrolytic corrosion areas based on the positional relationship between rail edges and surrounding features using machine learning and image processing techniques.

Benefits of technology

Enables efficient detection and quantification of electrolytic corrosion areas, enhancing the effectiveness of rail inspection and maintenance by accurately identifying and calculating corrosion extents.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007875086000001
    Figure 0007875086000001
  • Figure 0007875086000002
    Figure 0007875086000002
  • Figure 0007875086000003
    Figure 0007875086000003
Patent Text Reader

Abstract

To provide an electrolytic corrosion detection device and the like that can efficiently detect an electrolytic corrosion area of a rail.SOLUTION: An electrolytic corrosion detection device comprises: an acquisition unit 11 that acquires an image obtained by photographing a rail; an extraction unit 12 that extracts a rail tie peripheral area from the acquired image; an identification unit 13 that identifies an area to be identified and an edge of the rail in the rail tie peripheral area; and a detection unit 14 that detects an electrolytic corrosion area equal to or more than a threshold area or equal to or more than a threshold width based on the positional relationship between the identified area to be identified and the edge of the rail.SELECTED DRAWING: Figure 1
Need to check novelty before this filing date? Find Prior Art