Basler pilot User Manual

Image Acquisition Control
96 Basler pilot
8.6 Trigger Ready Signal
As described in the previous section, the cameras can operate in an “overlapped” acquisition
fashion. When the camera is operated in this manner, it is especially important that:
 the exposure time of a new image acquisition not start until exposure of the previously
acquired image is complete, and
 the exposure time of a new image acquisition not end until readout of the previously acquired
image is complete.
The camera supplies a “Trigger Ready” (TrigRdy) output signal you can use to ensure that these
conditions are met when you are using a hardware trigger signal to trigger image acquisition. When
you are acquiring images, the camera automatically calculates the earliest moment that it is safe to
trigger each new acquisition. The trigger ready signal will go high when it is safe to trigger an
acquisition, will go low when the acquisition has started, and will go high again when it is safe to
trigger the next acquisition (see Figure 36). The camera calculates the rise of the trigger ready
signal based on the current exposure time parameter setting, the current size of the area of interest,
and the time it will take to readout the captured pixel values from the sensor.
The trigger ready signal is especially useful if you want to run the camera at the maximum
acquisition frame capture rate for the current conditions. If you monitor the trigger ready signal and
you trigger acquisition of each new image immediately after the signal goes high, you will be sure
that the camera is operating at the maximum acquisition frame rate for the current conditions.
Fig. 36: Trigger Ready Signal
Image Acquisition N
Exposure Readout
Time
Signal goes high
at earliest safe
moment to trigger
acquisition N+1
TrigRdy
Signal
Signal goes low
when exposure
for acquisition
N+1 begins
Image Acquisition N+1
Exposure Readout
Image Acquisition N+2
Exposure Readout
Signal goes high
at earliest safe
moment to trigger
acquisition N+2
Signal goes low
when exposure
for acquisition
N+2 begins

Basler pilot Specifications

General

Brand	Basler
Model	pilot
Category	Security Camera
Language	English