Quanser qbot User Manual page 26

Quanser Qbot: User Manual
If the image is output as matrix data remove the Vision Get Iplimage Data block.
2. Check that the Image Convert block is set to convert the source image format BGR8 to
MATLAB RGB.
3. Set the Display Image sample time to 0.5 seconds.
4. If the error "Warning: Not enough memory on the target to process the packet:
EXT_SELECT_SIGNALS" is displayed in the MATLAB Command window or data on
Scopes and the Display Image block are not displayed during model execution, the size of
the external mode buffer is too large. The Display Image block acts like a Scope and
uploads its signal (the image signal) to the host for display through Simulink's external
mode buffers. In order to resolve this issue so that images and data will be displayed the
buffer size should be reduced. To reduce the size of the buffer, either increase the model's
base rate so that it is faster or reduce the number of base rate samples used in the model's
external mode buffer by decreasing the Duration in the Signal & Triggering menu under
Tools > External Mode Control Panel > Signal & Triggering.
Document Number: 830  Revision: 7  Page: 23