hi! i am working on a project where i have to detect the position of an object inside a box (i need x and y coordinates only, not z needed) and then trigger a xy table configuration to go to that certain position.
my thoughts for now are to use the ESP32 UWB module on the target, on the x and on the x to get the position, but it does not have he best accuracy....
to trigger the position on the xy plate i think the configuration is quite easy once the position is determined.
i found a lot of other possibilities but none of them seemed really a fit, do you have any advice?
How big is the box, what sort of object, and what position accuracy do you require?
the box is 82 x 105 x 71.5 cm (but i just need to track it on the 82x105 plane), the object is a monkey (that is already wearing a necklace where a sensor can be placed) and the accuracy needed is in the order of centimeters.
Is the objective reflective? Can you use more then one sensor? How much time to find the object? Can the location be pseudo manual? Example: A pointer or pointers on a pot shaft where you point from two different known locations then use the angle calculated from the pot voltage to determine where the object is? If you want to add a third you can get the z axis. Picking the pot voltage properly can get you readout in ~degrees if calibrated. Look up Fox Hunt by amateur radio operators. Very important have fun!
TOF reflective distance sensors might work. One pointing in the X direction, one pointing in Y.
Carefully consider the field of view, and if too narrow, you might need 2 or 3 sensors along each axis.
yes! i can use as many sensors as i want/need but the time need to be the shortest possible (i need to get an updated location so the object on the xy plate can be repositoned on the same coordinated)... it cannot be pseudo manual unfortunately.. but thank you anyway! i'll take a look into it.
thank you! i will take a look it this fits my application, but from what i saw the measurements obtained are similar to the ones obtained with an ultrasound sensor, right? it just gets the distance to the closest object without distinction between any them ?
Did you forget to tell us that there will be multiple objects in the box?
no! there wont be, but its a monkey and i want to get the position of a certain part of the object and not any 
Cameras and image processing is your only option.
It's an expensive solution (~$275) but GPS RTK is apparently capable of 1 cm accuracy. Not sure if you can cram the circuitry into a monkey necklace though.