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Displacement sensor


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#1 xikky

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Posted 25 February 2012 - 08:14 AM

Can I get an ADXL345 sensor to measure displacement. What i need is a sensor which will be held by a person and this will read if the person steps right or left, jumps etc.. Can you suggest anything for me?

#2 Mario Vernari

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Posted 25 February 2012 - 08:46 AM

Hello...I'm not sure whether could help you, but the stuffs here -at least- may give you an hint.
http://www.tinyclr.i...ality-2012.aspx
(Sorry, it's Italian)
Have a look at the pics and at the movie. It's a very nice way to record what a person does.
Cheers
Biggest fault of Netduino? It runs by electricity.

#3 xikky

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Posted 25 February 2012 - 08:59 AM

Hello...I'm not sure whether could help you, but the stuffs here -at least- may give you an hint.
http://www.tinyclr.i...ality-2012.aspx
(Sorry, it's Italian)
Have a look at the pics and at the movie. It's a very nice way to record what a person does.
Cheers


Thanks for the link. No problem with Italian as it is the 3rd spoken language in my country :) I'm from Malta. Unfortunately it seems as ADXL345 does not seem to be the right sensor for my project. But nonetheless new ideas sparked!

I would still like somebody to tell me which sensor would read and measure movement displacement for my personal interest.

#4 Mario Vernari

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Posted 25 February 2012 - 09:17 AM

*MALTA*!...Wonderful, although I never been!
Well, I'm far from being an expert on the movement sensors, but it's a few time that I bumped onto a curiosity related to.

Now, watch at this product: http://www.wikitude.com/en/
Well, it's amazing, and I'd feel very useful, even in an industrial/pro context. BTW, I've asked to someone had tried it, but it's still not enough reliable for fine positioning.
NOTE: the Company product is okay. The problem is around the precision/reliability of the smartphone sensors.

You know, most of the modern smartphones embed GPS, accelerometer, and compass. The compass is the main problem.
It's not accurate enough, and susceptible of metallic objects close to the sensor, as well as magnetic fields.

So, I don't know what's your goal, but it's seems still a long road to an accurate tracking of the movements.
I reported the Kinect sample, because it's very reliable. However, it's maybe a different tool from what you're expecting.
Cheers
Biggest fault of Netduino? It runs by electricity.




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