Lego Mindstorms - The Fire Fighting Robot @FH Vorarlberg

[superevilgoldfish]

Your robot is really cool! but wouldn't it have been easier if you used a fan instead of an air pump?

[climberAUT]

@superevilgoldfish

Yes.... maybe .... but then it's not a challenge anymore ;-)



[vpowerrc]

what is the range of that sensor ?

[climberAUT]

@vpowerrc : The range depends on the light..... the brighter the light the higher the range is.... So there is no specific range..... It's all up to the light source.

If you want the documentation of the project I can send it to you. It´s written in german but Google-Translate will help you ;-)

[vpowerrc]

what is the sensor you used for this ? is it IR or LDR

[climberAUT]

@vpowerrc sorry, but I don't know what LDR stands for. The sensor I used was a 'normal' light sensor to measure the intensity (0-100%) of light.

[Fischerderfischer]

Cool

[climberAUT]

@MsDomeen: Yes it can differ a candle from a flashlight. A candle (in our case) is brighter than a flashlight and the controller measures the value of the light-sensor(red LED in the front). If the signal is lower than 70% the robot detects "cold light" and for a signal higher than 70% it detects a candle and starts the supercharger.

[MsDomeen]

Nice work! How can it differ a candle from a flashlight?

[climberAUT]

@ikhebgeennick:

YES, there are just 3 outputs :-) for that problem I added an additional battery pack and some cables.

The circuit for the cables will close when the valve is closed and after a few seconds the valve opens and blows out the candle :-)

tips???? hmmm.... use your brain and think outside the box ;-)

[pclayson]

which lego kit did you base this off?

[climberAUT]

@pclayson:

It´s more or less the basic Lego Mindstorms Kit (the old one) and I added some extra stuff like the supercharcher and so....

[krishmitable]

this project is really wonderful. I am an engineer working in a company. Can you tell me what are the things, technology and equipments you used? I am asking this because i sincerely think that this robot can be amended to a better level.

reply me at sathyam_bhujan@yahoo.com

[climberAUT]

the "thing" at the beginning is the big battery pack and a bulp. the weels beside are just for higher friction ;-) the bulp should show that the robot can differ between fire and other sources of light.

it took me about 3 hours to build it up and another 12 h for the C-code.

[legomailman]

Wow that is really cool. How long did it take to make and what is that thing it bumps into at the beginning of the movie.

[climberAUT]

@legomailman:

the thing at the beginning is just a lamp mounted at a battery pack.

It should show, that the robot can distinguish between a candle and a "cold" light source

[iDan245]

the nest generation of firemans!!

[climberAUT]

We used the light sensor and measured the light intensity.

we defined the level at about 75% (depends on the location)

when the robot is in front of the candle or torch we measured the intensity a second time to differ between a candle or a torch.

You can see the sensor in the video as a red light.

if you have more questions don`t hasitate to ask.

[rrrazor]

hi, what method did u use to detect the candle? It detects the candle very nicely even in a very much lit environment.

[climberAUT]

@rrrazor: sorry for my late answer.

YES, there are just 3 outputs :-) for that problem I added an additional battery pack and some cables.

The circuit for the cables will close when the valve is closed and after a few seconds the valve opens and blows out the candle :-)

[climberAUT]

@rrrazor:

I used a lightsensor to detect the candle... if the level of the sensor is higher than 75% it starts to run the supercharcher

[xfacemanx]

Thats pretty cool. The little air pump is neat. Where do you get the extra parts from like the wheels specificly?

I have seen a motor cycle by Technics with the same wheels i think. Do you just buy technics kits to add on? Thanks alot.

[climberAUT]

we built up the robot with a huge number of parts, so the wheels are not from the basic mindstorms kit.

yes, you can use every part of lego technics.....

the biggest difficulty of the robot was how we can control the 4. motor which drives the air pump....

thanks for your comment

[chanphillip]

Great idea