Corrosion Detection on Overhead Line Towers

Keen AI is using deep learning and image processing to detect corroded steelwork on National Grid towers in high resolution imagery. Using machine vision, Keen AI’s technique processes images and automatically identifies towers that do not contain any corrosion and therefore do not require further inspection.

The technique is being developed further to grade towers based on the severity of the corrosion found.

The Problem Statement

  • National Grid are responsible for maintaining over 20,000 electricity transmission towers across England and Wales.
  • They capture high resolution images of their towers to identify corroded steelwork.
  • Analysts spend hours reviewing the images, assigning a grading to each tower based on the severity of corrosion found.
  • The majority of towers contain little to no rust, and are considered clean.
  • The process is time-intensive and laborious.

Identifying distinct regions of a tower that are corroded

Successful Outcomes

  • The developed algorithm is able to accurately identify clean towers, removing them from the inspection process.
  • OPEX Saving: Reduction in time taken to review towers.
  • Self Sufficiency: Analysts are able to train AI models to identify and extract relevant components (Spacers, Joins, Dampers, Insulators).
  • Risk Reduction: Reduced the risk of corrosion reaching a severe state by removing the backlog of images to be processed.
  • Process Consistency: Identification of clean towers is independent of the individual analysing the images.

Learn more about our AI Condition Assessment solution for Electricity Transmission Operators

Newsletter Sign Up

Stay up to date with our work, and industry-related developments.

Hamzah Reta

Hamzah Reta

Hamzah is excited by the potential of AI to take engineering processes to even greater heights. Following his passion for integrating these two worlds to build a better future, he is dedicated to helping Keen AI grow and achieve that vision.‍

More Posts from 

Hamzah Reta

Sarah Bauroth

Keen AI Book Club

As part of our book club, we read a different book every month. The only rules are, that none of

Read More >
Hamzah Reta

AI and the Justice System

The legal system is close to a crisis of confidence. Notice the phrase “crisis of confidence”. This is not just a challenge of processing a backlog of cases but ensuring the public feels the system is doing what it is meant to do: deliver justice.

In this episode Cari and I discuss what this means. Can AI be used to achieve this goal? What would a framework to evaluate the use of AI in a legal setting look like and why she’s starting with road traffic offences.

You can visit the project page on the King’s College website.

Read More >