COMPUTE THE TIME AT WHICH THE Y REACHES A GIVEN VALUE FOR A SUSTAINED PERIOD¶
Scans one or more curves and identifies the first x-axis point (time) at which the y-value falls within a specified [y-min, y-max] range and remains there for a sustained duration (time window). Use this worker to detect failure onset or threshold-crossing events in time-history signals.
When to use¶
Classification: process.
Tagged: curve_analysis, failure_detection, failure_point, sustained, threshold, time_history, yrange.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Curves From Which The Failure Point Is To Be Extracted | curvesfromwhichthefailurepointistobeextracted | vector | — | One or more time-history curves (x = time, y = signal) to be scanned for the failure point; accepts multiple curve objects. | |
| Minimum Y-value | y-min | scalar | — | Lower bound of the y-value range (inclusive) that defines the failure condition; must be in the same units as the curve y-axis. | |
| Maximum Y-value | y-max | scalar | — | Upper bound of the y-value range (inclusive) that defines the failure condition; must be in the same units as the curve y-axis. | |
| Time Window | timewindow | scalar | — | Minimum duration (in the same time units as the curve x-axis) for which the y-value must remain within [y-min, y-max] before the point is classified as a failure. | |
| Return Type | return_type | string | count | Controls what value is returned at the failure point: ‘xval’ returns the x-axis (time) coordinate, ‘yval’ returns the y-axis value; defaults to ‘count’. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| curves_failurepoint_yrange_output_1 | curves_failurepoint_yrange_output_1 | dataset | Dataset containing one row per input curve with the identified failure-point coordinate (x or y value, per return_type) at which the signal first enters and sustains the specified y-range. |
Disciplines¶
- data.curve.transform
- data.signal_processing
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=curves_failurepoint_yrange
Auto-generated from transformation schema. Worker id: curves_failurepoint_yrange. Schema hash: 16e404d2b94e. Hand-curated docs in workerexamples/ override this page when present.