NigatTechnology

Manufacturing & Distribution · Open-data model demonstration

How much useful life remains, and how uncertain is that estimate?

An engine-held-out remaining-useful-life model that combines multiscale sensor features, calibrated uncertainty, driver proxies, and a transparent maintenance-cost scenario.

Open-data model demonstrationNASA C-MAPSS FD001 simulated turbofan run-to-failure data.
Open source information

SourcesEngine sensor tracesRun-to-failure cycles · 21 sensors
NigatForecast and decision modelBaseline · uncertainty · monitoring
OutputDecision rangeSchedule on the lower bound, not the estimate
Predicted useful lifeCycles remaining, capped at 125
90% intervalCalibrated on separate engines
Decision stateUses the lower bound, not the point estimate
Held-out test MAEEngine-level split
Remaining useful life and uncertainty band cycle of

90% intervalPredicted Benchmark actual

Driver proxies at this cycle

Test RMSE
Nominal interval
90%
Measured coverage
Held-out engines

Business problem

A point prediction makes maintenance look precise when the model is not. One number carries no window, no evidence and no cost, so the same figure is used to justify stripping a healthy machine and to justify running a failing one.

Techniques used

  • Multiscale rolling sensor features
  • Extra Trees ensemble
  • Engine-level train/calibration/test split
  • Finite-sample split-conformal interval and cost scenario

What the workflow can improve

  • Estimate remaining useful life with uncertainty
  • Show risk progression and sensor drivers
  • Compare planned and failure exposure
  • Create a path to asset-specific maintenance policy

From demonstration to production

Replace the proxy with the customer’s operating evidence.

The production path begins with a bounded workflow scan, source and permission mapping, baseline measurement, user and administrator roles, and an explicit decision owner. The public technique is reusable; the customer’s rules, costs, constraints, and outcomes must be validated.

What this runs on

  • The data is public or fully synthetic.
  • Impact figures are modelled from that dataset, with the model shown.
  • The interface is a working demonstration of the method.
  • Consequential decisions retain an accountable human owner.

Start with the operating problem

Show us where the work slows down.

You do not need a polished technical brief. Describe the decision, handoff, report, document workflow, or AI initiative that is harder than it should be.

Start the conversation

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