DS-CAM-88c / DS-CAM-120c
TECHNICAL REFERENCE MANUAL
C:\Program Files\Smartek\GigEVisionSDK\bin\Win32
and
C:\Program Files\Smartek\GigEVisionSDK\GenICam\bin\Win32_i86
to
DEWESoft’s Addons folder.
Then restart DEWESoft.
Maximum frame rate @ VGA resolution only 36 fps
When you adjust the framerate higher than 36 fps, and it is always reset to 36 fps, the Ethernet card in
your computer is most probably only 100 Mbit/s. Please check the control panel → network card
properties. Gigabit-Ethernet (1000 Mbit/s) is required!
Performance improvements (e.g. in case of frames lost, CPU overload or buffer overrun)
A loss of a few frames during a measurement is normal, due to collisions on the Ethernet network.
Here are some useful hints to improve the performance:
●
Do not operate the camera in a fully loaded network (e.g. office computers). Just use direct
connection or one switch (with no additional participants).
●
Disable all anti-virus, firewall, indexing and synchronization programs running in background.
●
Also check if you really have a Gigabit-Ethernet network card, not only 100Mbit/s.
●
Check if the LAN cable is at least of CAT5 quality, if you have longer cable lengths it should be
even better.
●
For this camera, the main improvement can be done by using a SSD (disk writing speed about
100...150 Mbyte/s. One camera at 640x480 @ 120fps takes about 35MByte/s, multiply the value
with the number of cameras used)
●
Disable any “live compression” in Hardware setup → Video. Codec may take CPU load.
●
Try to decrease the framerate / resolution
●
Use the Windows resource monitor (can be found in Task manager) to check for bottlenecks.
●
For optimal performance we recommend enabling “Jumbo” frames on your PC network card.
“Jumbo” frames are Ethernet packets larger than 1500 bytes. This way less CPU time is spent for
data reception therefore increasing performance and minimizing data loss. (Control panel ->
network and internet -> view network status and tasks (network and sharing center) -> change
adapter settings -> right-mouse-click on LAN connection -> Properties -> Configure -> Advanced
-> Jumbo Frame -> set to highest value (e.g. 9kB MTU))
●
Also an overloaded DEWESoft setup (many displays, e.g. high resolution FFT instruments) will
take system power. Try at first only with camera video instruments.
●
Press <Ctrl>+<Shift>+<P> in DEWESoft Measure mode. On the right side the performance
monitor will appear. Watch the Cam video buffer. It should stay stable at low values.
DS-CAM-88c / DS-CAM-120c V20-1
23/31
