Hello Everybody, I want to find the way to find the distance + identify the object specificly like:
I have 2 object A and B , and 1 static point C.
Do we have any sensor or way to trigger when ever A or B come closer to C, the distance between it , and A or B is coming closer to C.
Thank you everybody so much.
P/s: I have done some research but i don't thing just Ultrasonic Distance Sensor or some image processing handle will work (due to the lack of data) also.
So you have two tasks here:
- Identify the object;
- Determine the distance to it.
Most likely you'll need both Ultrasonic Distance Sensor (for part 2) and some image processing (for part 1).
Maybe you could think of some better ways to identify the objects - we know nothing about them, so hard to suggest.
well Ultrasound won't work for sure to meet your needs
One camera could work if there is no way A or B could come close to C with C obstructing the view from the camera point of view (ie be hidden by C)
Like are there any way to make the A or B send data and C receive data. whenever they can identifier each others by those data tho, may be we don't need much about the distance, just to make sure they know if they're come closer tho
hmmm sorry but quite confused with your cmt can u pls explain
The MakerFabs ESP32 UWB modules would work for this. They report distances from each other, with +/- 10 cm accuracy, up to a maximum separation of 20-60 m, depending on the environment.
With more work you can also obtain coordinates of a tag.
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depending on how the camera "sees" the scene, part of it can be obstructed by C
so if A goes around and comes to C from within the obstructed area, then the camera won't see it.
➜ you need to ensure there is no blind spot
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