This is my first time posting on a forum and I'm here because I could not figure out what to do in my situation. I am wanting to build a device that can measure the distance between two points. I know there are many ways of doing it but this is where the issues start to come. I need the accuracy to be within 1cm and the range to be anywhere from 1m-150m and it needs to work in any environment (including a bright one like outside on a super sunny day or inside a building). It does not need to be getting the distance rather just gets the distance at one specific point in time. I have already tried using a laser and was not receiving consistent measurements. I was looking into using UWB but that only comes within 5cm. Is that the best I am going to get or does anyone have any other ideas? Or are there any laser distance units that people know of that would work in these conditions better than mine did? I also saw something about using RTK GNSS but that wouldn't work when indoors. Any kind of information is appreciated even if it involves an expensive method
EDIT:
One point is the device and the second point is the location. Currently, we already use a tape measure to measure the two points (locations rather than points). However, having to pull through the tape and everything involved takes a lot of time when it is repeatedly having to be done. I am a part of a track and field team more specifically a thrower. As a thrower, we have to measure frequently how far the implement went from the edge of the throwing area. Currently, there are many other laser measuring devices for this however they all tend to have issues when it comes to the bright light of the sun and the price range is anywhere from $3500 - $7000. I wanted to try to create my version that may not need to use a laser since it seems like many issues arise when we move outdoors.
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