Calculating Distance With Vision Sensor

[SagarPatel]

I was wondering if anyone knew how to calculate the distance of an object using a vision sensor. Code in either Vex Coding Studio or VEXcode will be helpful. I have heard that you can calculate the distance of an object only if the sensor is angled downwards and I was also wondering if that is true. Any help is appreciated.

[rpm]

check this thread

Vision sensor FOV measurements

I’ve been asked a few times about the vision sensor field of view. I wrote in this thread that is was 67 deg, that was based on quick measurements with a target pretty close to the sensor, that number is close but not correct. @Windows10010 posted earlier today here that they thought it was 30 deg, that seemed way too narrow from what I remembered. I used to do this type of measurement often as I worked in the film industry for a camera manufacturer. It’s pretty easy to do, harder with this …

[CarCar]

If you wanted to calculate solely the distance from the robot to an object using the ultrasonic sensor would be better. The Ultrasonic sensor measures solely distance, and can measure up to 255 CM, from all the Ultrasonic sensors I’ve seen:

Ultrasonic Range Finder

[SagarPatel]

Ok thanks. Could you provide a website or a piece of code that finds the distance of an object using an ultrasonic sensor in VEXcode?

[nickmertin]

Here is the API documentation for it: VEX Help

[CarCar]

Do you have vexcode downloaded, it should have built in examples of how to use the Ultrasonic sensor.

[SagarPatel]

I do have it downloaded. I just figured out that once you add the device, the items in the Command Reference show up. Thank you very much!