8.Features
© China Daheng Group, Inc. Beijing Image Vision Technology Branch 49
Trigger Acquisition
Exposure
Reading out
Start Status
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Trigger
Figure 8-11 Trigger acquisition process
In trigger mode, sending
AcquisitionStart
command is not enough, a trigger signal is also needed. Each
time a frame trigger is applied (including software trigger and hardware trigger), the camera will acquire
and transmit a frame of image.
8.2.1.2. Acquisition Stop
It can send
AcquisitionStop
command to camera at any time. The acquisition stop process is irrelevant
to acquisition mode. But different stop time will result in different process, as shown in Figure 8-12
and
Acquisition stop during reading out
Complete stop
Reading out
Stop command
Stop
time
Exposure
Incomplete
frame
Figure 8-12 Acquisition stop during reading out
As shown in Figure 8-12, when the camera receives an acquisition stop command during reading out, it
stops transferring frame data immediately. The currently transferred frame data is regarded as incomplete
frame and will be discarded.
