Estimation when the data stops

Telemetry dark. Minutes the estimate holds.

A radio site, a span, a feed or a UPS fails and part of a line goes dark. Holdover says how many minutes each segment's estimate stays inside tolerance, which sensors stop together, and the smallest leak still detectable meanwhile. Read-only. A person decides.

The family

Seven products. One engine.

How they fit together

Lose. Hold. Act.

Lose

Which sensors go dark, together, and when they come back.

Mask · Clock

Hold

The estimate and its bound through the window, segment by segment.

Hold · Bridge · Floor

Act

What the control room does at minute N. A person decides.

Rank · Plan
The engine

Kalman and constrained moving-horizon estimation with burst-correlated sensor arrivals, on Wavepin's line model

Wavepin finds the leak while data flows. Holdover says how long that estimate holds when data stops.

71 minheld, median, when a radio site is lost
85 %of outages inside the 90 % bound on minutes
2.0 %of flow: smallest leak still seen, 22–45 min dark
91 %of leaks caught inside the window, 6 % false alarms

Tournament t001, 1500 held-out simulated outages on a 20 km line, thresholds frozen on validation. The bar and the result are on the proof page. All the numbers →

The film

The whole story in 80 seconds

Where it fits

Built for the assets you run

Crude trunk lines

Long lines, few gauges, radio backhaul.

Product pipelines

Batched lines between refinery and terminal.

Gathering systems

Many RTUs on one cell.

Terminals

Fibre spans and UPS feeds.

Offshore export lines

Satellite fallback.

The rest of the harness

Same engine, other assets.

All of the Oil Operations Harness ↗

Holdover — Telemetry dark. Minutes the estimate holds.