Chief Delphi - Line Sensor Yellow vs. Orange?

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MathFreak

10-02-2011 18:51

Line Sensor Yellow vs. Orange?

For line sensor, my mentor (programming) said that Yellow means receiving no signal, and Orange means receiving signal is powerful.
And when we tried the line sensor, it showed Yellow and Orange at the same time... What does that mean?

Thanks :)

Robototes2412

10-02-2011 19:16

Re: Line Sensor Yellow vs. Orange?

anything not green means its on a line, idk what the orange means

SuperBK

10-02-2011 19:34

Re: Line Sensor Yellow vs. Orange?

Yellow means it sees the line. Orange means its receiving 2.5 times the signal required to activiate. Idieally, you want both yellow and orange. If you just have yellow, it will work.

MathFreak

10-02-2011 20:50

Re: Line Sensor Yellow vs. Orange?

Quote:

Originally Posted by SuperBK (Post 1020158)

Yellow means it sees the line. Orange means its receiving 2.5 times the signal required to activiate. Idieally, you want both yellow and orange. If you just have yellow, it will work.

What about green?

austin1743

10-02-2011 21:14

Re: Line Sensor Yellow vs. Orange?

are they solid lights on the sensors?

we found that we had 2 sensors working perfectly and then went for the 3rd sensor and found out we had plugged it into the wrong port.

try checking your wiring to make sure you have it wired right, it should alternate between the 3 i believe...

Kovs	10-02-2011 21:28

Re: Line Sensor Yellow vs. Orange?

Quote:

Originally Posted by MathFreak (Post 1020200)

What about green?

Green means that the line sensors are getting less than the required signal required to activate.

MathFreak

10-02-2011 21:33

Re: Line Sensor Yellow vs. Orange?

Quote:

Originally Posted by austin1743 (Post 1020213)

wow that's a lot... Actually we need 2 line sensors working, and we tried one of them and we plugged it into port 14, and others are not used.

And I'm sure I wired it right... It's just I don't understand what's going on with color signs and the color that the sensor is detecting..

MathFreak

10-02-2011 21:37

Re: Line Sensor Yellow vs. Orange?

Quote:

Originally Posted by Kovs (Post 1020225)

Green means that the line sensors are getting less than the required signal required to activate.

that means green is not detecting the line?

Robby Unruh

10-02-2011 22:05

Re: Line Sensor Yellow vs. Orange?

Quote:

Originally Posted by MathFreak (Post 1020234)

that means green is not detecting the line?

Green: no line detected
Yellow: line is detected
Orange: line detection is POWERFUL.

yeh. :p

MathFreak

10-02-2011 22:06

Re: Line Sensor Yellow vs. Orange?

Quote:

Originally Posted by Robby Unruh (Post 1020252)

Green: no line detected
Yellow: line is detected
Orange: line detection is POWERFUL.

yeh. :p

WHAT?! that's not same as what my mentor said... how did you know it??

WizenedEE

10-02-2011 23:20

Re: Line Sensor Yellow vs. Orange?

Quote:

Originally Posted by MathFreak (Post 1020255)

WHAT?! that's not same as what my mentor said... how did you know it??

I've heard the same thing echoed around the forums, and it seems to be true for my testing. What did your mentor hear, and where did he hear it?

MathFreak

10-02-2011 23:27

Re: Line Sensor Yellow vs. Orange?

Quote:

Originally Posted by WizenedEE (Post 1020314)

I've heard the same thing echoed around the forums, and it seems to be true for my testing. What did your mentor hear, and where did he hear it?

actually its she.. but anyway
she said that green is detecting, yellow is not and orange is receiving powerful signal....
and i guess it was from internet because she was looking at her laptop....

Stimpy1901

11-02-2011 02:55

Re: Line Sensor Yellow vs. Orange?

According to the documentation (click here for documentation):

Quote:

The orange LED is an alignment aid which indicates that a margin of 2.5 has been reached. This means that the sensor is receiving at least 2.5 times the signal strength back from the target needed to trigger an output signal. In general, it is desirable to have a higher margin to help overcome any deteriorating environmental conditions, i.e. dust buildup on the sensor's lens. When aligning the sensor, the best performance can be obtained if this margin indicator is illuminated with the target in place.

MaxMax161

11-02-2011 08:08

Re: Line Sensor Yellow vs. Orange?

Quote:

Originally Posted by MathFreak (Post 1020318)

actually its she.. but anyway
she said that green is detecting, yellow is not and orange is receiving powerful signal....
and i guess it was from internet because she was looking at her laptop....

All this info was in the paper instructions that came with the sensors in the bag. ::rtm:: I'd suggest checking that out, it might answer some questions you didn't know you had.

jcbc	11-02-2011 09:25

Re: Line Sensor Yellow vs. Orange?

FWIW, our experience is with the Allen-Bradley photoelectric sensors is:

Green = No IR reflected (e.g. pointed at carpet)
Yellow = IR reflected (e.g. pointed at gray tape)
Yellow + Orange = Very strong IR reflection (e.g. really reflective material)

We have the white wire of the sensor wired as the signal to a digital I/O on the digital sidecar.

Also, we needed to recalibrate the sensor (turning the sensitivity adjustment knob on the top) when we got the gray gaffer's tape since we had been testing with much more reflective materials before that.

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