How it works

See it run inside the Auditor's sweep

Two tests, outliers and drift runs, against each series’ own baseline. Every anomaly also goes out as an event, so other Modules can read it.

  • Weld current, live reading 412A
  • Weld current spike flagged

Anomalies

Flag the reading that sits far from its own average

Each reading is compared to the average and spread of its own series, so the target moves with your process instead of sitting fixed. You set how far out is too far for each check, 3.0 sigma by default. Every finding shows the baseline and how far the reading sat from it.

  • Z-score against the mean and spread of the series
  • Sigma threshold set per check, 3.0 by default
  • Baseline and deviation returned with every finding
  • Shaft PN-6034-03 diameter0.8

Drift

Catch the drift the threshold misses

Eight readings in a row on one side of centre count as a run. That catches the slow movement no single reading would trip. A series without enough history is skipped until it has enough to trust.

  • Centre-run detection, minimum run of eight points
  • Catches slow movement no single reading trips
  • A series with too few points is skipped
  • Oldest field drifting: Torque reading drift Assembly Torque form 2d 18h Drift

Form drift

Watch every number on your quality forms for drift

Every numeric field on a submitted quality form gets watched, including the ones nobody thought to check. Drift is measured across a run of submissions. The finding names the field, the run and the baseline it drifted from.

  • Every numeric field on a submitted quality form
  • Drift measured across a run of submissions
  • The field, the run, and the baseline named in the finding
  • Root cause openedWeld Line 1 finding
  • Hold on Weld Line 1 Execute Route for approval

Auditor handoff

Pass each finding to the Auditor

Findings on quality metrics feed the Auditor’s root cause run. The Auditor proposes a hold, and it is carried out or sent for approval depending on the authority you’ve set. Anomaly events also go out for other Modules to read.

  • Quality-metric findings feed the Auditor's root-cause run
  • Holds are proposed, then executed or routed for approval
  • Anomaly events publish for other Modules to read
  • Check on demand, weld current Series and sigma picked: 3.0 Scored against baseline 2 points tripped, returned

Diagnostics

Run the check on demand

The same threshold, run length and baseline apply whether it runs on the Auditor’s schedule or when you ask. Pick the series and the sigma, then run it. Findings come back with the exact points that tripped them.

  • Same threshold, same runs, same baseline reporting
  • Pick the series and the sigma before you run it
  • Findings come back with the points that tripped them
  • Detection run today Weld Line 1 outliers 09:42 Paint Booth 2 drift 13:17
  • Finding ADA-0388, notified

Test types

Two tests today, and no actions of its own

It runs two tests today: outliers and drift runs. It has no schedule and no inbox of its own, so it only runs when the Auditor or a diagnostic calls it. A field-drift finding raises a notification through the Auditor and stops there, with no root cause draft and no hold.

  • Two tests today: outliers and drift runs
  • No schedule and no inbox of its own
  • Field-drift findings notify only, no root cause and no hold

What a process engineer sees when a reading drifts

    • WLD-007 currentWeld robot spike 3.1σ
    • Checked before flagging Crossed sigma threshold Baseline recalculated Run had enough points
    • Finding sent to Auditor

    An outlier reading becomes a finding, baseline attached.

    Every reading is scored against its own series. Cross the sigma threshold and it becomes a finding with the baseline and deviation attached. The reading itself is never changed.

    How scoring works
    • Series drift watch Shaft PN-6034-03 diameter Drift Weld current WLD-007 Recovered Torque form Assembly Drift
    • Run: 8 pts drifting

    Catch drift that no single reading shows.

    Eight points in a row on one side of the baseline count as a run. A series without enough history is skipped until it has enough to judge.

    How drift is scored

FAQ

Bring the anomaly your quality data hides.

30 minutes on your quality data, and how outliers and drift runs get flagged against their own baseline.