Synchronizing the Image Processing System

For synchronous image and signal processing, trigger boards control the frame grabber image acquisition, camera triggering and external peripherals.

Frame Grabber Trigger Boards Control Image and Signal Processing

To control image acquisition and synchronize an image processing system’s hardware peripherals, such as cameras, lighting, light barriers, shaft encoders, etc. in real time, frame grabbers offer not only image processing but also high-performance signal processing that handles General Purpose Input/Output (GPIO) data signals. Trigger boards are used for this purpose. They control the frame grabber’s image acquisition process and the exposure times of the cameras.

A connector is located on the frame grabbers to plug in the trigger boards. They are connected via a 34-pin flat ribbon cable. The cable is available in various designs (left, right and customer-specific for multi-devices).

Trigger Boards Synchronize the Image Processing System – the Highlights

Select from various physical GPIO options such as TTL and opto-coupled signals. A trigger board is available for each option: The TTL trigger enables an adjustment to the TTL signal level; the opto-trigger allows galvanic isolation and an adjustment to the industrial signal level (typically 5 to 24V).

Opto trigger: opto-coupled signals
TTL trigger: standard TTL level
Multiple input and output signals (max. 8x in, 8x out)
Synchronization of the image acquisition process
Synchronization of multiple cameras in the image acquisition system
Control of the camera’s exposure time
Independent control of multiple cameras connected to a frame grabber
Highly flexible graphic programming of user-defined trigger functions with VisualApplets

x x

	Model Name	Connectors	Inputs/outputs	Connectivity to frame grabber	Signal driver to frame grabber	Trigger Configurations	Availability i
	Opto-coupled Trigger 5	2 x SUB-D15 (female) socket	8 in / 8 out mapped on two ports	34-pin flat cable	open collector driver	Outputs: inverted / non-inverted
	TTL Trigger	2 x SUB-D15 (female) socket	8 in / 8 out mapped on two ports	34-pin flat cable	open collector driver	n/a

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