[HN Gopher] Predict 3D position of flying bugs and pest to shoot... ___________________________________________________________________ Predict 3D position of flying bugs and pest to shoot down them with a laser Author : giuliomagnifico Score : 38 points Date : 2021-12-31 20:51 UTC (2 hours ago) (HTM) web link (www.naro.go.jp) (TXT) w3m dump (www.naro.go.jp) | jjcm wrote: | It says the prediction is accurate to 1.4cm, but it doesn't say | at what range. 1.4cm at 1km is great, but 1.4cm at 1m likely | isn't usable. | | I'm also curious what the failsafes are like for this - how will | they prevent laser spillover or misfires from hitting eyes? Even | if this is a 1 in a million chance, it likely isn't worth it | except in highly remote areas. | carbocation wrote: | In a flat area, you could imagine designing a system so that it | couldn't aim below horizon, and then mount it 10-15 feet up to | mitigate the risk of blinding. | skykooler wrote: | That sounds like a big risk to aircraft. | TheDudeMan wrote: | How long of a pulse is required to disable an insect? How | long to be a danger to airplane pilots? | yakshaving_jgt wrote: | This sounds very similar to that old idea for protecting African | families from female _Aedes Aegypti_ mosquitoes[0]. | | I think the idea never took off, and I'm still not sure why. | | [0]: https://youtu.be/hqKafI7Amd8 | the_only_law wrote: | Everytime this idea comes up, I can't imagine a laser powerful | enough to kill even small insects not running the risk of | collateral damage, burning things around it. | niccl wrote: | IIRC (can't find a reference), the idea was noty to be able | to kill teh mosquitoes outright, but to damage their wings so | they couldn't fly. _Much_ less power needed. | | Still an issue, though, but not so bad | DJBunnies wrote: | Like my retinas. | solidsnack9000 wrote: | Maybe if several low power lasers were fired together, to | converge at the predicted position, it would moderate the | risk of collateral damage. Even a few millimeters away from | the target position, the radiative flux (W/m2) would be much | lower, likely at safe levels. | jacquesm wrote: | Firestarter for sure. | mattbee wrote: | The illustration is hilarious - appears to be a gigawatt laser | scoring a hit on Mothra. | consp wrote: | Ah yes, the "star wars laser defense mosquito system". It' as | impractical then (early 00's origin) as it is now | https://www.youtube.com/watch?v=TGkPMZxWPpA&t=2s (it's Dutch but | you get it). | | Unless you can get mm accuracy and perfect non-foe detection it's | useless with the multi-watt lasers generally required. | jacquesm wrote: | That video is absolutely hilarious, a total spoof on all those | tell-sell nonsense videos they would play at night on idle | channels of the local cable TV systems. | kurthr wrote: | One key thing is that flying bugs might be hiding under leaves, | which doesn't even require any tracking, but matching their | favorite plants... and hopefully scaring them with an optical | flash so they can be tracked. | toomuchtodo wrote: | Beacon lights to draw them out? | bee_rider wrote: | We can only take that sort of thinking so far before we | reinvent the bug zapper. | toomuchtodo wrote: | Bug zapper _at a distance_. | | https://www.youtube.com/watch?v=0C5vkbtpdN4 | | https://patents.google.com/patent/US20100186284A1/en | bee_rider wrote: | Oh neat, you can even see their horrible little mosquito | ghosts go shooting out of their cursed bodies. (it is OK | to be completely spiteful toward mosquitos, right? They | are like the #1 all-time human killer) | snek_case wrote: | Should be possible to modulate the intensity of the laser | pretty easily with a modern diode-based laser (so that you | can avoid damaging the plant). | giuliomagnifico wrote: | I think this system (laser) will work from the ground (where | there're the crops) to the sky, before the bugs will touch the | leaves, not froun ground to ground level. So there will be no | trouble in shoot down the bugs when they're flying some meters | above the ground. | fareesh wrote: | if a spray is used the radius would be wide enough to catch i | suspect - as opposed to a laser ___________________________________________________________________ (page generated 2021-12-31 23:00 UTC)