Hello everybody, I'm trying to get a 3d spacial coordinate with a millimeter accuracy. Is it possible, if 'yes', how?
The origin is relative and the object will be in a few meters, it would be a antenna and a receptor.
Thanks!
Not possible using radio technology, and for 3D, it is very unlikely that a hobbyist could put something together and make it work.
Hello everybody, I'm trying to get a 3d spacial coordinate with a millimeter accuracy. Is it possible, if 'yes', how?
laser measurement tools might be an answer.
How vast is your budget?
AWOL:
How vast is your budget?
Yeah, that is the million dollar question.
Shpaget:
Yeah, that is the million dollar question.
Groan... Bad pun! 
use cameras and do computer vision programming?
what kind of objects ?
As far as i can understand This is basically a ir cam from a wii remote. It has harware to detect i diodes. It should be possible to use it for triangulation.
Would it be reasonable to ask what (exactly) you are trying to position ?
Tarcio:
Hello everybody, I'm trying to get a 3d spacial coordinate with a millimeter accuracy. Is it possible, if 'yes', how?
The origin is relative and the object will be in a few meters, it would be a antenna and a receptor.Thanks!
I would venture it is possible, but improvements on this approach will be required to achieve 1mm
Ray
Thanks Mr. B, so in short, all the OP needs is a BSEE and 20 yrs experience ?
raschemmel:
Thanks Mr. B, so in short, all the OP needs is a BSEE and 20 yrs experience ?
you say that like it's a bad thing
you say that like it's a bad thing
No, it's not a bad thing, but I know it is not the first time you have seem posts by Newbies who are trying to reach beyond their level. For some reason, the Arduino has acquired a reputation as a product that allows people who know absolutely nothing to do anything. Am I exaggerating there ?
@OP,
It is customary when posting, to start your post with a summary of your background and your budget to eliminate wasted time conveying information you may already know or recommending equipment you can't afford. If you started your post with a summary of your electronics and software experience we might be in a better position to help you. (not that we can in this case as the cost might be prohibitive but it would help anyway)
To put this in perspective, I worked in the semiconductor industry with wafer handling robots that were driver by AC servo motors . The motor driver itself was about $5000 and the motor over $1000. They were
capable of millimeter accuracy but required a DeviceNet interface and complex software that included such
parameters as ACELERATION,DECELERATION , VELOCITY, & TARGET POSITION. They had ABSOLUTE ENCODERS capable of telling you the exact position coordinates in realtime. You could program them
to any coordinates with any motion profile you want. The typical move would acelerate to about a midpoint and then begin the deceleration and finally slow to an incredibly slow rate to avoid generating
particles in the chamber when contact was made with the wafer. The entire tool (system) was 5 million dollars and the motion control hardware was probably in the ballpark of 30 k or more.
raschemmel:
No, it's not a bad thing, but I know it is not the first time you have seem posts by Newbies who are trying to reach beyond their level. For some reason, the Arduino has acquired a reputation as a product that allows people who know absolutely nothing to do anything. Am I exaggerating there ?
Oh, for crying out loud!
Of course the platform allows for abuse... So do motorcycles, sport cars, parachutes, scuba diving, consumer airplanes and about 90 things on anyones 100 Bucket List.
BUT Arduino sparks interest which fires a few little gray cells (Sorry Poirot) and may well drive users to explore a EE. Even if a reader explores the next level and gains a layman knowledge, is that not a good thing?
Yes, a good thing to have a hobby that drives one to learn. Perhaps this will not change an Op's life but Arduino is a learning platform and I really try and give every Op question a gentle push in a positive direction.
Ray
Oh, for crying out loud!
That's not necessary. I was not discouraging learning in any way. I am simply implying that it requires effort and too often posters think that an Arduino is the ultimate shortcut that eliminates effort and the need for learning. Obviously it is a good thing to have so much power in the palm of your hand. It is when you let it go to your head that you run into brick walls. I can't say enough good things about Arduinos but as I said before, too often we see posts where people think that just having the arduino means they don't need to do their due diligence and research the topic (learn the electronics or software required). I never suggested or implied that it is not a good thing to want to learn. I implied it is not a good thing to look for a way to avoid learning. I think you know exactly what I mean when I say that.
@OP and the rest this may just do the job. https://www.coolcomponents.co.uk/rplidar-360-degree-laser-scanner-development-kit.html
Of course it would have help if the OP had said just what the job was!
Mark
raschemmel:
That's not necessary. I was not discouraging learning in any way. I simply implying requires effort and too often posters think that an Arduino is the ultimate shortcut that eliminates effort and the need for learning. Obviously it is a good thing to have so much power in the palm of your hand. It is when you let it go to your head that you run into brick walls. I can't say enough good things about Arduinos but as I said before, too often we see posts where people think that just having the arduino means they don't need to do their due diligence and research the topic (learn the electronics or software required). I never suggested or implied that it is not a good thing to want to learn. I implied it is not a good thing to look for a way to avoid learning. I think you know exactly what I mean when I say that.
I'm old and have seen many changes as each generation takes their place in creating the next wave of knowledge to be passed on to newcomers. Old knowledge is displaced or recast with new insight; sometime just becoming history. Colleges adapt to teach new students because new students need new approaches in teaching to compete with the near unlimited facts available via the Internet. History has shown that every generation feels empowered to force change.
So, in a time when even the most basic game console has more raw MIPs than the mainframe I learned Fortran upon... In this time which we call now, who can put into prospective the need to use the tools available and to do a little self-study?
I venture to state that 99.9% of all Arduino questions "could be" found on the Internet, but many Ops do not have the background to know when they have read the answer! So, in this forum, should we with the ability to put knowledge into prospective not provide such continuity? An uninformed inquiry does not imply an ignorant Op, they may just be breezing through Arduino on their way to greatness - a future brilliant artist, social reformer, politician, poet, artist... Or Nobel laureate.
Arduino was conceived to be the microcomputer platform for everyone. As senior members, our responsibility is to ensure that an EE or PhD is not necessary to utilize the platform.
Opinion by Ray
My Silly Projects that do not require an EE to understand...
@Mr. B.
+1
Awesome projects link !
Very inspiring.
[EDIT]
I wish I could figure out how to do them but they are not Instructables per se so while they are all fascinating, the Cat Weazel and the Walkibot were the only two that seemed to be in the DIY project format with complete instructions. I am probably missing something but I would love to move up to the 32-bit ARM platform but still don't know where to start. If you have any suggestions I would appreciate it. (I know the DUE is 32-bit but I was thinking of something more DIY. I use ATtiny85s and standalone 328s with no problems but I still have a lot to learn)
I still think that the forum post software should have an automatic mandatory questionnaire that requires the poster to include some basic background info that is available from links at the top of his post, ie:
HW Experience: 6 months; basic electronics, simple circuits
SW Experience: 2 months, arduino
and that the multiple choice check box questionnaire be used to administer a few simple questions to verify basic
knowledge of arduino or electronics, a process that shouldn't take more than 5 minutes. It would save hours of
trying to extract information from the poster.
Robert
Just out of curiosity, how did you create your project link pages on your website with the buttons at the bottom. Is that done with webpage software ? (or maybe the question I should be asking is how do you imbed the buttons in the photo ? (adding the text I can figure out)
@OP,
Can you provide a link or photos for the antenna. "Antenna" is a little vague. Can you be more specific ?