proximity sensing

[kfas]

I need help to convert the following derivative integration pseudocode for proximity sensing to a matlab program

X[i-1] = X[0]
I[i-1] = 0
Loop1:
D = X - X[i-1]
Is (ABS(D) greater than DT)?
true:
I = I[i-1] + D
else:
I = I[i-1]
Is (I H/d)
true:
Object detected
I[i-1] = I
else:
Object not detected
I[i-1] = I*L

 

[MacGyverS2000]

What have you come up with so far? Where does it break?


Dan - Owner

http://www.Hi-TecDesigns.com

 

[GregLocock]

Your pseudocode, as shown here, has typos in. Also believe it or not some idea of what the varibales are would help.


Cheers

Greg Locock


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[GregLocock]

https://www.ti.com/lit/an/snoa939/snoa939.pdf?ts=1616678761554

for the original code and an explanation

Cheers

Greg Locock


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[GregLocock]

Dan did you look at this, it seems like a very unsatisfactory method of cleaning up the signal?

Cheers

Greg Locock


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[MacGyverS2000]

I did zero verification if the algorithm itself was of any use... I just expect to see some work on the part of the student before offering feedback. I didn't see that here, just a cut and paste from a datasheet. Not attempt to actually code it, or show errors in trying to run said code.

Dan - Owner

http://www.Hi-TecDesigns.com

 

[kfas]

It is obvious Texas Instruments used it in whatever machine they wanted.From their documentation they could have corrected whatever errors it has.

 

[GregLocock]

I didn't say it had errors. i said it didn't seem to perform very well, after about 30 minutes of tuning.

Cheers

Greg Locock


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