Ultrasonic Sensors

[martin417]

Originally Posted by mikeqfl

Has anyone tried using the camera for ranging information? Is there a canned routine in Labview to do that? Any feedback on how accurate it is? We are using a camera to track the the opposing trailer and need range feedback to feed to our shooting mechanism. We almost have all of the mechanical stuff worked out, time to program and try to make it all work now. Nothing like saving the best for last.

If you look at the tracking example, some of the outputs from the code include blob area and min and max X and Y values. You could correlate the area to distance, but that won't be very accurate. You could take the difference in Ymax and Ymin which should correlate very well to perceived height, which correlates very well to distance...