Frequently asked questions.
About PILLAR, the data and models behind it, its legal position and getting started.
FAQ
Product
What is PILLAR?
A virtual structural safety screening SaaS that combines satellite InSAR displacement monitoring with a physics-based material degradation AI. Each structure gets a 0–100 Structural Health Index, an A–E grade, an inspection priority and draft reports in Korean and English.
Who uses PILLAR?
Nuclear plant operators, SMR developers, bridge and dam owners, concession companies, local governments and facility agencies, and engineering consultancies.
Which structures are supported?
NPP containment and auxiliary buildings, SMR sites and module foundations, long-span bridges, dams and spillways, ports, LNG and plants, general reinforced concrete structures, pothole-risk road segments and sinkhole / ground-subsidence precursor zones.
FAQ
Data and models
Which data does PILLAR use?
By default, Sentinel-1 pairs (public ARIA GUNW or on-demand HyP3) and ERA5 climate data. It can extend to NISAR, commercial SAR, Sentinel-2 and Landsat 8/9.
How accurate is the InSAR?
It depends on the number of pairs, the period and the surface. PILLAR shows uncertainty per cell and keeps rates out of the index when there are too few pairs (minimum 4 pairs over 180 days).
What are the degradation models based on?
fib Model Code 2010 (carbonation), Fick’s second law (chloride), the Alonso criterion (cover cracking) and ISO 9223/9224 (atmospheric corrosion), with a 600-draw Monte Carlo for uncertainty.
Can we add field measurements?
Yes. Store measured cover, strength and chloride profiles per structure and the model uses them.
FAQ
Legal position
Does PILLAR replace statutory inspections?
No. It is not a statutory inspection or diagnosis, a regulator’s periodic safety review, a life-extension review, a design-life ruling or an operating decision.
How is this shown in reports?
Every screen and PDF carries an “internal virtual safety screening” disclaimer.
FAQ
Getting started
How long does onboarding take?
A quote in one business day, half a day to register and connect, and the first report within two weeks.
What if we have strict security requirements?
A dedicated instance, SSO and audit logs are available as quoted options.
Can we start with a pilot?
Yes. We suggest a screening pilot on a few structures, compared with your own inspection and survey results.
Related pages
Work with us
Start with a screening pilot.
No equipment on site. We screen your structures from public satellite and climate data first, then compare the priority list with your own inspection and survey results.