8.Features
© China Daheng Group, Inc. Beijing Image Vision Technology Branch 29
Complete stop
Reading out
Stop command
Stop
time
Exposure
Incomplete
frame
Figure 8-8 Acquisition stop during reading out
As shown in Figure 8-8, when the camera receives an
AcquisitionStop
command during reading out, it
stops transferring frame data immediately. The currently transferred frame data is regarded as incomplete
frame and will be discarded.
⚫
Acquisition stop during blanking
Complete stop
Reading out
Stop command
Stop
time
Exposure
Ignored
Figure 8-9 Acquisition stop during blanking
After the camera transferred a whole frame, the camera goes into wait state. When user sends an
AcquisitionStop
command in wait state, the camera will return to stop acquisition state. The camera will
not send any frames even if it is just going to start the next exposing.
8.2.2.
Acquisition Mode
VEN-U3 camera support continuous acquisition mode.
In continuous acquisition mode, the camera continuously acquires and transmits images until the
acquisition is stopped.
1)
When the trigger mode is set to On, the trigger type is
FrameStart
After executing the
AcquisitionStart
command, the camera waits for a trigger signal, which may be a
software trigger or an external trigger of the camera. Each time the camera receives a trigger signal, it can
