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Catapult Satellite Applications

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Brigital-Podtcast_Website
Intelligent Transport

BRIGITAL

Infrastructure Monitoring from Space

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The Challenge

Bridges are infrastructure assets that are vital to our everyday life. They help us cross boundaries, connect people, and transport goods; and as with all critical infrastructure, they need careful and regular maintenance. Many bridges are in urgent need of refurbishment and face challenges of limited capital investment and inflexible inspection and maintenance regimes.

Factors such as climate change, heavy usage, and age can all affect the structural health of bridges, and eventually, lead to damage or collapse.Inspecting bridges across often remote areas is costly, and with large gaps between inspections can lead to a potential problem being undetected for up to two years. With this in mind, a solution using SAR data from satellites has been created to monitor this bridge network remotely and at scale.

BRIGITAL-screenshot

How satellites can help

Synthetic Aperture Radar (SAR) satellites are a type of Earth Observation (EO) satellite that can deliver up to 25cm resolution data which, unlike optical data, is unaffected by weather factors such as cloud cover. SAR data has been used for over two decades for producing ground motion maps, and this successful method of monitoring change is now being applied to detecting slight movements in ground structures.

Project Partners

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The Satellite Applications Catapult is collaborating with the National Research Council for Canada on creating a decision-support tool for asset maintenance decision makers. The pilot study tool, named BRIGITAL, visualises data on the national network of bridges in Canada to deliver indicators on structural stability and safety

BRIGITAL processes and analyses data from a range of sources, including satellites, ground sensors, and visual inspections, and displays any vertical displacement of bridges over time with millimeter accuracy. This real-time monitoring can aid users in deciding when and where to focus resources to preempt large scale damage or collapses. The visualisation tool displays the changes in structure and is developed as an early-warning tool, comparing automatically predicted movements against satellite measurements and indicating potential problems to users, thus allowing for early intervention.

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In a recent episode Engineering Matters Podcast – #55 Saving Structures with Satellites – we speak to the engineers making the BRIGITAL project possible, and their terrestrial counterparts now tasked with figuring out how best to use this new perspective.

Click below to listen online, or search ‘Engineering Matters‘ on your podcast app of choice.

Get in touch

Click the button to get in touch with the BRIGITAL team for collaboration enquiries or for further information on our work in this area.

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Extractive Industries

Cornish Lithium

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Project Ongoing
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Extractive Industries

Hephaestus

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Project Completed