basically I will put arduino based thermal cam (http://www.cheap-thermocam.tk/), gps module (sirf 3), and xbee fm transmitter...
Purpose of that is.... put those system on the quadcopter, and take thermal pic, and get gps location data, and send it through fm transmitter...to user.
I doubt arduino uno can do all of that at the sametime..
Any suggestions on putting all of those things together in one system?
thank you.
(i am using xbee 60mw transmitters, and sirf 3 gps module.)
What size images does that camera take? The site is blocked for me. Can the image be pulled from the camera at a rate slow enough for your transmitter (either FM or XBee but not both) to transmit the image. The Arduino can not hold the whole image in memory, so the camera must be able to dole out the image in small pieces.
The camera uses a mechanically-scanned non-contact IR thermometer to build up an image.
A single frame takes up to a minute to expose.
Whilst sending the samples shouldn't be a problem, holding a drone still for a minute will be.
What size images does that camera take? The site is blocked for me. Can the image be pulled from the camera at a rate slow enough for your transmitter (either FM or XBee but not both) to transmit the image. The Arduino can not hold the whole image in memory, so the camera must be able to dole out the image in small pieces.
Oh my bad.
And as AWOL said, it takes up to a minute to build the whole image...so from my calculation, it won't be a problem..
AWOL:
The camera uses a mechanically-scanned non-contact IR thermometer to build up an image.
A single frame takes up to a minute to expose.
Whilst sending the samples shouldn't be a problem, holding a drone still for a minute will be.
I agree. Indoor situation, i think it is possible to have get usable image from the thermal cam since there is no wind ...
I wonder if i can integrate those things in one arduino board?
Using a single sensor and then mechanically moving it around to scan the target strikes me as a very unlikely approach that can be made to work under ideal conditions, but you've got a heavy complex servo system that will be flexing and shaking all over the place on your drone, never mind that the drone itself is also moving. I suspect you may be better off getting a CCTV device that can see in the IR.
I don't know anything about them, but this link suggests that they may not be horribly expensive.
The OP was asking about a thermal camera, long wavelength IR, not a simple standard CMOS camera with the short wavelength IR filter removed.
However, I agree, wind or no wind, stabilisation is going to be near impossible.
The reason why i wanted to try with arduino based thermal cam is that
it is easier to implement the program with thermal image to detect people (since human has higher temp than surroundings, i just need to find spots that have similar temperature that human has in the thermal image)
I might be able to try those night vision ones...
one more thing i am wondering about is that weather i use night vision camera, or that thermal camera....i need to integrate that system with gps and rf transmitting system.....
How can i imtegrate all of those systems in one arduino board? so far i have 2 of arduino uno boards...and i don't think uno can handle all of those things....?
Now you're confusing long wavelength IR with short.
The advantage of long wavelength is that it takes a long time to collect them image, using radiation emitted by the body. The length of time is also the disadvantage, because you have to hold the detector still.
Short wavelength gives a higher frame rate (which is easily transmitted over a video 2.4GHz video link), but cannot detect emitted IR.
No free lunch here, I'm afraid.
You could use the motion of the vehicle to provide the scanning.
If you're really going to take a minute per frame, performance may not be an issue. But I think you'd want a frame buffer, at least, so that could put some important constraints on your hardware. Of course, if you're scanning the sensor mechanically you have control over the image resolution that you return.