Image triggers allow saving of single images from a video stream at a specific time. With each trigger fired, ibaCapture creates an image (.jpg or .bmp) of the corresponding frame of the video stream.

Similar to video triggers (see above), image triggers are defined in the data storage configuration of ibaPDA (version 6.29.0 or higher). A branch "Image trigger" can be seen in the tree of data storage if ibaCapture modules are included in the I/O configuration.

All ibaCapture Servers and the cameras connected are shown in the tree structure of the "Image trigger" branch.

Up to 10 image triggers can be added to each camera.

Adding image triggers

You can assign an image trigger to a camera by selecting the camera in the tree structure and pressing the "Add image trigger" button in the toolbar. Alternatively, you can use the context menu (right-click on the camera).

Add image triggers

Remove image trigger

Copy marked image triggers to clipboard

Insert image triggers from clipboard

By setting or removing a checkmark, you can enable or disable every image trigger for recording.
Configuring image triggers

The configuration of the image triggers is done on 3 different levels: ibaCapture Server, camera and image trigger.
Server level

Select the server branch.

On the video server level, you can determine the main folder and the subfolder structure for the storage of image files. A subdirectory is automatically created under the main directory of the server for each camera. A structured storage is then made below this, which you can configure here, similar to the measurement files in the data storage.

In addition, you can determine a user account to be used for login to the video server.
Camera level

Select the camera branch.

Specify the name of the subdirectory for the camera and the allocated disk space in MB at the camera level. The disk quota is checked every 15 minutes. Choose a memory size that corresponds to the maximum permissible disk space minus the approximate data volume generated within 15 minutes. Doing so helps you to ensure that the maximum permissible disk space is not exceeded.

Example

A maximum of 500 MB is available for one camera. Approximately 10 MB of image files are generated within 15 minutes. The memory use should then be limited to 490 MB.
Image trigger level

Select an image trigger

On the trigger level, you can change the name and index of an image trigger. The index determines the order of triggers for a camera.

Furthermore, you can set the way the file name of the image file is created. The same setting options as for the data files are available.

The start trigger determines the time a snapshot is made. You can also trigger on the edge of a digital signal or the pass-by value of an analog signal. It is also possible to define a pre-trigger time. The snapshot is then taken at the time set (trigger event – pre- trigger time). The trigger dead time determines the minimum time interval between two snapshots. In addition, the image triggers are saved in the measurement file as image channels. An image channel contains the file names of the created images.