Flame detection using LDR

Proximity, IR, Line, Light and Temperature sensors, Frequency meters, Tachometers, Thermometers, Barometers...

Moderators: ikalogic, cotto88

Flame detection using LDR

Postby aronima » Fri Feb 06, 2009 2:00 pm

Hey...
I'm working on a fire extinguisher robo for an upcoming competition.The arena has 4 rooms(one of which will have a candle),the bot is supposed to detect the candle and blow it off.rooms are of varied sizes(91*72,66*46 &the largest being 120*91,in cm).
I wanted to use a LDR with an ADC to determine if a room has a candle right at the entrance(without entering it,that wud save the bot a lot of time).But the LDR isn't able to detect the candle flame(kept in a corner) from such a large distance.Is there any other sensor/device that detects change in light/temperature and has a good range(atleast 1 m)2671
pls help.
aronima
 
Posts: 2
Joined: Fri Feb 06, 2009 1:42 pm

Re: Flame detection using LDR

Postby bhavik_k » Fri Feb 06, 2009 3:25 pm

use IR sensor
bhavik_k
 
Posts: 23
Joined: Tue Jul 01, 2008 5:46 pm

Re: Flame detection using LDR

Postby aronima » Sun Feb 08, 2009 12:52 pm

wat kind of ir sensors2671
aronima
 
Posts: 2
Joined: Fri Feb 06, 2009 1:42 pm

Re: Flame detection using LDR

Postby bhavik_k » Mon Feb 09, 2009 6:01 pm

ir sensors which are available in the market. they look like LED's. use a comparator ic. you can easily detect flame within 1m range. the only problem that may occur would be false trigerring due to ambient light.
bhavik_k
 
Posts: 23
Joined: Tue Jul 01, 2008 5:46 pm


Return to Sensors & Measurement

Who is online

Users browsing this forum: No registered users and 1 guest

cron