Troubleshooting For Bigeye G Cameras Only (Iod Mode) - AVT Bigeye G Installation Manual

Troubleshooting

Troubleshooting for Bigeye G cameras only (IOD mode)

Controls  Controls  Exposure 
IODMode ExposureAuto/ExposureMode
Continuous Off/Manual
Continuous Off/Manual
IOD Off/Manual
IOD Off/Manual
IOD Other/External
• Linux only: Run as root, allowing the OS to boost the priority of the AVT
driver thread, and the driver to bind directly to the NIC adapter. Users who
feel running as root compromises their system security may find the fol-
lowing implementation satisfactory:
– Set the executable owner as root
– Set the "setuid" permission bit on the executable
– In code, when application starts use capset() to release all but these
privileges: CAP_SYS_NICE, CAP_NET_ADMIN, CAP_NET_BROADCAST,
CAP_NET_RAW. The application will start with all root privileges, but it
will drop them immediately after startup
If the camera can be detected but no images can be grabbed:
Verify the camera operation mode: Make sure the camera operates in
continuous mode, and not in IOD mode.
General description:
• Continuous mode: The camera generates the images with a constant
exposure time autonomously.
• Image on Demand (IOD): the camera produces no image until a trigger
impulse is generated.
Trigger mode Description
Freerun
LineX/SyncInX Camera waits for an impulse at the
Freerun
LineX/SyncInX Camera produces a single image for
LineX/SyncInX Camera produces a single image for
Table 5: Comparison of IOD modes and trigger modes
Camera generates images with a con-
stant exposure time autonomously. The
exposure time cannot be adjusted.
selected trigger input pin to start a
continuous image output.
Camera produces images autonomously.
The exposure time can be adjusted.
every impulse at the selected trigger
input pin. The exposure time is defined
by ExposureTimeAbs/ExposureValue.
every impulse at the selected trigger
input pin. The pulse width defines the
exposure time.
AVT GigE Cameras Installation Manual V1.0.1
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