Media Server 24.3

# Alert - Tripwire

Generates an alert when an object crosses a tripwire. Before using this analysis engine, configure a task such as Object Class Recognition to track objects.

Configuration Parameter | Description
--- | ---
CrossingDirection | Media Server only generates an alert when an object crosses the tripwire in the specified direction.
Input | The name of the image track to analyze.
Tripwire | The position of the tripwire in the scene.
Type | The analysis engine to use. Set this parameter to `AlertTripWires`.

## Output Tracks

Output track | Description
--- | ---
`Result` | Contains one record for each object that crosses the tripwire. The record is created when the object leaves the scene, and therefore includes the object's path after crossing the tripwire.
`ResultWithSource` | The same as the `Result` track, but each record also includes the best source frame.
`Alert` | Contains one record for each object that crosses the tripwire. The record is created as soon as the object crosses the tripwire. There are no subsequent alerts for the same object.
`AlertWithSource` | The same as the `Alert` track, but each record also includes the source frame.

To see an example record, use the action GetExampleRecord.

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Version 24.3 | Last updated June 2024

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Product: IDOL Media Server 24.3

Topic Title: Alert - Tripwire