7 Troubleshooting
7.1 Hardware issues
LED does not illuminate
The 3D stereo camera does not start up.
• Ensure that cables are connected and secured properly.
• Ensure that adequate DC voltage (24 V) with correct polarity is applied to the power connector at the
pins labeled as
Power
and
Ground
as described in the device’s
(Section
). Connecting the camera to voltage outside of the specified range, to alternating current, with
reversed polarity, or to a supply with voltage spikes will lead to permanent hardware damage.
Reliability issues and/or mechanical damage
This may be an indication of ambient conditions (vibration, shock, resonance, and temperature) being outside
of specified range. Please refer to the
specification of environmental conditions
(Section
• Operating the 3D stereo camera outside of specified ambient conditions might lead to damage and will
void the warranty.
Electrical shock when touching the projector
This indicates an electrical fault in camera, cabling, or power supply or adjacent system.
• Immediately turn off power to the system, disconnect cables, and have a qualified electrician check the
setup.
• Ensure that the projector housing is properly grounded; check for large ground loops.
7.2 Sparse depth images
The depth images of the 3D stereo camera, which can be seen by using the SGM®Producer, may have
missing values, which are shown in black. Missing values near object borders are normal. If major parts of
the depth image are invalid, then this may be due to the following reasons:
• The scene may be out of the current working range of the 3D stereo camera. Depending on the depth
quality, reducing the parameter
Maximum Distance
also reduces the possible minimum distance. See
also
for examples of possible depth ranges.
• Depth values may be missing on objects without texture. In this case, the internal random dot projector
should be used for projecting an artificial texture. For single shot depth images, the
Out1
mode should be selected as DepthAcquisitionMode in the category DepthControl. For continuously
computing depth images, the projector should be turned on for every second image by setting
Out1
to
ExposureAlternateActive
in the category DigitalIOControl.
• The focus may be inadequate for the working range. Please check the focus using a calibration grid as
described in
(Section
MATRIX VISION GmbH
Manual: BVS 3D-RV1
25
Rev: 1.0
Status: Nov 14, 2022
