Hi all,
Let me first sketch the outlines of what I'm trying to do:
Please presume that I have I have a very accurate (<2cm deviation) indoor positioning system (ultra-wideband beacons).
Using this system I can locate a remote control that has a precise (<0.1 degree deviation) gyro in it. I would like to draw lines not only by moving this remote, but also by pointing it and having it track the spot its pointed at, to then visualise this in a virtual 3d space. If I know the position of the remote, the angle and the distance of the spot it's pointing at this should be possible.
I got all these things, except for a good way to accurately determine the spots distance. I was planning on using a lidar, I even got the Garmin lite v3hp lidar sensor to test it but that thing still has a 2.5cm deviation. It also has 1kHz update frequency, so way more than I need (I think). I don't really need a line of dots when moving the remote, just enough dots to be able to connect them together and get something with a reasonable resemblance to the real world. This means that I could do some averaging on the lidar to get it to be more accurate.
But still, 2.5cm devation out of the box seems a bit poor. I was wondering if there are any other lidar or in general laser range finder based solutions that allow up to preferably 10 meters (but up to 5 or so would also be usable) that have a decent update rate (20Hz might already work), and that are precise (<10 mm deviation preferably).
I did come across this guy who reprogrammed a bosh laser rangefinder.
https://www.hackster.io/iliasam/making-a-cheap-laser-rangefinder-for-arduino-4dd849He says he even gets 60Hz stable from it for up to 6 meters with less than 10mm deviation. My question is, how do you think this compares to the Garmin v3hp in terms of reliability (the surfaces it will work on). Because I don't really care about it being bigger, or only 60Hz at < 6 meters but it does need to work reliable. Especially if I can’t do averaging.
Also, if this works so well, aren't there any more expensive laser rangefinders that could be hacked to achieve the same thing at even higher frequencies? This would seem to good to be true given the 200 euros price tag of the Garmin lidar.