201–210 of 262 posts
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Protected against weather and sunlights but not against dumb kids with eBay lasers yet
Then why don't terrorists and angry people use this?
What they don't seem to work out is that they're drawing a super clear line in the sky directly back to themselves, and police in choppers have colleagues on the ground who are very happy to show up and arrest the guy with the laser...
I've been waiting for a commercial device to come out after hearing about this a decade ago. Some kind of simple blackbox that kills mosquitos in a reasonable vicinity with low power requirements that's also rechargeable via USB. Possibly add a big battery and make it a USB charger. I don't think 30cm distance is far enough for much usefulness, feels like commercial viability means at least 1m if not 2m. 30cm is 'put…
I just moved to a property near a pond that is severely infested with midge flies and mosquitos. The water is supposed to be treated by the HOA but they've neglected it for a while I guess. A solution like this wouldn't work due to the sheer volume of insects in the air at any given time (millions gathering around my block). I rigged up a door reed switch that turns on high power fans for 30 seconds when opened that…
This work (I think) worked with the mosquitos 30cm away with a servo scanning Pi Camera (1080p) and a 1W laser. To work in the real world - cover a whole room or terrace - presumably a much higher resolution camera (or much faster scanning system) would be required. Even a 1W laser is dangerous to eyesight, if it was being fired at targets mingling with people. The system could be mounted on small drones that would p…
Good luck detecting a mosquito optically from a distance of several meters using a cheap camera and Raspberry Pi. Oh and you want to do from a moving drone. That will certainly make it work! Just look at the images in the article - the guy's best result was detecting a black speck appearing on a nearby white wall with some 60-70% reliability (based on his own numbers). So you would be missing a lot of mosquitoes - bu…
it's literally called ``Raspberry PI for Kill Mosquitoes by Laser'' not quite sure what you were expecting
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No but I am sure he has English speaking friends who could proofread it.
A bit of a arrogant anglocentristic point of view? Why do you assume everyone in the world has native english speakers as friends, willing to do free proofreading?
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> Good luck detecting a mosquito optically from a distance of several meters using a cheap camera and Raspberry Pi. Same thought as well. They must not have done the math on the optics... You'd have a much better chance using an acoustic array (mosquitoes put out a very distinctive sonic frequency), or even better an array of radar modules. There is simply too much noise and data in the visible spectrum to catch some…
This. Acoustic array sounds like a great solution for finding that pesky mosquitto that is hiding somewhere in the room. Anyone know how difficult it would be to make this?
I personally would go with the radar route; it's slightly more expensive that the acoustic route, but accuracy would be fantastic, even at a distance.
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There’s a reason bats hunt by sonar instead of vision.
To be fair though, part of that is because they hunt at night. There are a few places here in Sydney where you see a remarkable cloud of bats feeding in bright light - the lights over the harbour bridge and several of the tax buildings bordering the Botanic Gardens regularly have flocks of bats whirling around presumably attracted to all the insects flying in the bright lights...
Never thought I would even see the "Starwars Musquito Defense System" being actually developed :) https://www.youtube.com/watch?v=wSIWpFPkYrk
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> using a cheap camera even if you had a RED Komodo feeding uncompressed 4K DCI 60fps video to a pci-express bus capture card, the sensor resolution and tiny size of mosquitoes means that unless the lighting conditions are just right, and the mosquito is somehow highlighted against a background, it's going to be very hard to pick them out at distances of 2 or more meters. and that's before you get into the software p…
Would targeting the distinctive mosquito whine be feasible? You could have several bluetooth mikes scattered around the room for good triangulation
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There are some blog posts about building mosquito traps that generate CO2, I think they use yeast to do it and can be pretty effective!
I saw those videos. The problem is the maintenance, adding yeast and cleaning the trap. Imagine scaling to multiple traps in a house or the garden. On the other side, burning methane generates CO2: CH4 + 2 O2 → CO2 + 2 H2O. Methane is distributed nearly everywhere in my country for cooking and heating. That at least solves the problem of refilling. I guess we should burn a very small amount of methane to lure mosquit…