Operation
❯
Predictive Maintenance
❯Deep learning technology combined with topological data analysis successfully estimates degree of internal damage to bridge infrastructure
Deep learning technology combined with topological data analysis successfully estimates degree of internal damage to bridge infrastructure
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Deep learning technology combined with topological data analysis successfully estimates degree of internal damage to bridge infrastructure
Goal:
Improve Operation EfficiencyProblem addressed
Enables estimation of failure and state of degradation using surface-mounted sensors.
Scope of use case
Estimate and detect the risk of catastrophic collapse of old bridges.
Description
Inspection tasks for bridges are usually performed visually
to check the structure for damage. The issue with relying
only on information gathered visually, however, is that
inspectors can only identify abnormalities or anomalies
appearing on the structure's surface, and are consequently
unable to grasp information regarding the degree of internal
damage. There have been many trials in which sensors were
attached to the surface of the bridge deck, using vibration
data to evaluate the level of damage. With the methods used
until now, accurately understanding the degree of damage
within the interior of the deck was an issue.
Deep learning AI technology for time-series data can
discover anomalies and express in numerical terms degrees
of change that demonstrate drastic changes in the status of
objects such as structures or machinery, and detect the
occurrence of abnormalities or distinctive changes. The
technology learns from the geometric characteristics
extracted from complex, constantly changing time-series
vibration data collected by sensors equipped on IoT devices,
thus enabling users to estimate and validate the state of
degradation or failure in a variety of social infrastructure or
machinery. This technology has now been confirmed
through the application of verification test data from
21
Research Association for Infrastructure Monitoring System
(RAIMS).