dust sensor - Page 2 - Electronic Circuits Projects Diagrams Free

Mikebits · 9th August 2008, 07:06 AM

Quote:

Does your vacuum cleaner LED indicate when it senses dust on the floor, or in the tube, or what?

lol Torben. I am sure if you had the thing the answer would already be known. Me, well my wife would kick me into my next life if I cracked the thing open. hehe
All I know is an LED lights when there is a lot of dust...

Mikebits · 9th August 2008, 07:11 AM

Quote:

Originally Posted by crush24

thanks..its a class project..

Sounds like a good idea. You will find a lot of helpful folks here, only do not ask someone to design something for you as we do not condone doing homework, as the whole idea is for you to learn

When you do get stuck on a design issue, then by all means ask.

rjvh · 9th August 2008, 07:12 AM

to detect dust on the floor the best way is to have a light beam send in a sertain angle and picked up by the IR TX sensor

if there is dust there will be no reflection or in a different angle and out shouting the sensor

the sensor should be put fairly close to the ground the beam must be very narrow also

still you will have funny results as colors and no level surfaces

so there are quite some conditions that have to be right in order to make it work

Robert-Jan

crush24 · 9th August 2008, 07:16 AM

Quote:

Originally Posted by Torben

On the floor directly under the robot? Then perhaps the link I posted on your other thread will help: it's for detecting dust on a surface beneath the sensor. It should be possible to modify for your uses, depending on the kind of surface you'll be on and what amount of dust you want to detect.

It's more or less the same idea that Mike posted, but instead of detecting the dust in a tube it does it by bouncing the light off the floor and seeing how much is reflected. More light reflected means less dust.

Torben

[Edit: Note that neither I nor the author (apparently) have actually built the circuit in that link.

]

whoaaa..yes!!!thats it..will detect directly under the robot..i will try to build the circuit..thanks

Torben · 9th August 2008, 07:17 AM

Quote:

Originally Posted by crush24

whoaaa..yes!!!thats it..will detect directly under the robot..i will try to build the circuit..thanks

Good luck! If you run into any problems just ask and someone will surely be able to help you out. I'm kind of interested in that circuit now too.

Torben

crush24 · 9th August 2008, 07:17 AM

Quote:

Originally Posted by Mikebits

Sounds like a good idea. You will find a lot of helpful folks here, only do not ask someone to design something for you as we do not condone doing homework, as the whole idea is for you to learn

When you do get stuck on a design issue, then by all means ask.

yeah..i know..thanks a lot..you're a big help ..

crush24 · 9th August 2008, 07:19 AM

Quote:

Originally Posted by rjvh

to detect dust on the floor the best way is to have a light beam send in a sertain angle and picked up by the IR TX sensor

if there is dust there will be no reflection or in a different angle and out shouting the sensor

the sensor should be put fairly close to the ground the beam must be very narrow also

still you will have funny results as colors and no level surfaces

so there are quite some conditions that have to be right in order to make it work

Robert-Jan

thanks for the ideas ..its a big help..

Mikebits · 9th August 2008, 07:21 AM

Quote:

thre is an indicator when it senses dust and stops automatically when there is no dust..

One more thought.
I would not stop the vacuum at the first indication of no dust eg. cleaner first starts out varoom cleans spot A on floor, now spot A is spic and dust free. Cleaner detects no more dust and stops.

Here I am kicking the thing to finish cleaning the room... See my point? You need some Dust search and destroy algorithm.

crush24 · 9th August 2008, 07:21 AM

Quote:

Originally Posted by Torben

On the floor directly under the robot? Then perhaps the link I posted on your other thread will help: it's for detecting dust on a surface beneath the sensor. It should be possible to modify for your uses, depending on the kind of surface you'll be on and what amount of dust you want to detect.

It's more or less the same idea that Mike posted, but instead of detecting the dust in a tube it does it by bouncing the light off the floor and seeing how much is reflected. More light reflected means less dust.

Torben

[Edit: Note that neither I nor the author (apparently) have actually built the circuit in that link.

]

thanks for the time...it really helped me..

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Title	Starter	Forum	Replies	Latest
IR sensor, ultrasonic sensor, sonar sensor	hweontey	Robotics Chat	19	20th October 2008 12:26 PM
Attack of the Killer Dust Bunnies	Styx	Chit-Chat	10	11th July 2008 09:48 PM
What type of Hall Effect sensor is cheap and common? for rotation sensor with magnet.	William At MyBlueRoom	Electronic Projects Design/Ideas/Reviews	2	30th November 2006 07:59 AM
Ionic dust repeller?	zachtheterrible	General Electronics Chat	7	14th February 2006 12:41 PM
SENSOR:nemoto resistive semiconductor alcohol sensor(INDIA)	Anish	Datasheet/Parts Requests	1	24th June 2003 03:52 PM

9th August 2008, 07:12 AM	(permalink)
rjvh	to detect dust on the floor the best way is to have a light beam send in a sertain angle and picked up by the IR TX sensor if there is dust there will be no reflection or in a different angle and out shouting the sensor the sensor should be put fairly close to the ground the beam must be very narrow also still you will have funny results as colors and no level surfaces so there are quite some conditions that have to be right in order to make it work Robert-Jan