Baumer TXG - 5.4.2 Configuration Example

61
CongurationExample5.4.2
For the three employed cameras the following data are known:
Camera
Model
Sensor
Resolution
[Pixel]
PixelFormat
(PixelDepth)
[bit]
Resulting
DataVolume
[bit]
Readout
Time
[msec]
Exposure
Time
[msec]
Transfer
Time(GigE)
[msec]
TXG13 1392 x 1040 8 11581440 50 32 ≈ 10.8
TXG06 776 x 582 8 3613056 15.5 32 ≈ 3.4
TXG03 656 x 494 8 2592512 11 32 ≈ 2.4
The sensor resolution and the readout time (t ▪
readout
) can be found in the respective
Technical Data Sheet (TDS). For the example a full frame resolution is used.
The exposure time (t ▪
exposure
) is manually set to 32 msec.
The resulting data volume is calculated as follows: ▪
Resulting Data Volume = horizontal Pixels × vertical Pixels × Pixel Depth
The transfer time (t ▪
transferGigE
) for full GigE transfer rate is calculated as follows:
Transfer Time (GigE) = Resulting Data Volume / 1024
3
× 1000 [msec]
All the cameras are triggered simultaniously.
The transmission delay is realized as a counter, that is started immediately after the sen-
sor readout is started.
Camera 1
(TXG13)
Trigger
Camera 2
(TXG06)
Camera 3
(TXG03)
t
exposure(Camera 1)
t
exposure(Camera 2)
t
exposure(Camera 3)
t
readout(Camera 3)
t
transferGigE(Camera 3)
t
readout(Camera 2)
t
transferGigE(Camera 2)
t
readout(Camera 1)
t
transfer(Camera 1)*
TransmissionDelay
Camera 2
TransmissionDelay
Camera 3
Timings:
A - exposure start for all
cameras
B - all cameras ready for
transmission
C - transmission start
camera 2
D - transmission start
camera 3
* Due to technical issues
the data transfer of
camera 1 does not take
place with full GigE
speed.
◄Figure69
Timing diagram for the
transmission delay of
the three employed
cameras, using even
exposure times.