National Instruments NI myRIO, Essentials Manual

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10 CHAPTER 2. APPLICATION DEVELOPMENT FLOW
• Use the minimum number of steps that satisfies the requirements
• Periodically evaluate the computational effort of each step with the
Vision Assistant “Performance Meter”
6. Create a new NI myRIO LabVIEW project
• Connect the camera to NI myRIO if not already connected
7. Configure the Vision Acquisition Express VI
•
Select the “Continuous acquisition with in-line processing” option
•
Adjust the camera video mode and attributes to match the settings
recorded in Step 3
• Click “Test” to confirm that the image looks correct
• Enable the frame rate output, if desired
8. Configure the Vision Assistant Express VI
•
Open the Vision Assistant script created in Step 5
•
Remove the color-to-luminance step (assuming the camera is in
grayscale output mode)
• Click through the steps to confirm correct operation
• Select the necessary input controls and output indicators
• Enable the “Create Destination Image” option
•
Move the Express VI inside the while-loop structure
•
Create the needed controls and indicators
9. Add block diagram code for I/O devices
• Use available on-board devices as needed, e.g., LEDs, accelerometer,
PWM output for servomotors, and switches
•
Refer to the NI myRIO Project Essentials Guide for detailed instruc-
tions on a wide range of useful external devices such as proximity
sensors and LCD display
10. Validate the finished application
11. Deploy the VI as a stand-alone application
•
Refer to Appendix D on page 141 for complete details.