| Electronics > Projects, Designs, and Technical Stuff |
| Anti-Drone Airport Defence Systems - Crowdsourcing project. |
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| wraper:
--- Quote from: mikeselectricstuff on December 21, 2018, 11:51:22 pm ---OK so how much damage could a drone actually do - maybe take out one engine at best. Aren't planes designed to be safe if an engine fails, as an engine failure could happen at any time...? --- End quote --- If engine failure happens during takeoff or landing, it may easily cause plane crash. Pilots likely won't have enough leeway to react properly. |
| beanflying:
--- Quote from: wraper on December 22, 2018, 01:18:36 am ---That 500m max range claim I read in the news is ridiculous. First of all you can use cellular network to control it from any place in the world (with video feedback). Or simply use long range low speed transfer like LoRa. Secondly it can be autonomous. --- End quote --- Drones don't use Cellular of any sort for transmission from Craft to Ground. The Data rates mean Lora is a no go. Unless you just want to send a go command to a preplanned route. Existing commercial drones technologies on 2.4 or 5.8 get 5km+ comfortably. Ranges well over that are done with some added gear 100km+ is achievable with off the shelf parts. And if you go custom then some mates of mine were involved in crossing the Atlantic a few years ago. |
| wraper:
--- Quote from: beanflying on December 22, 2018, 01:28:25 am ---Drones don't use Cellular of any sort for transmission from Craft to Ground. The Data rates mean Lora is a no go. Unless you just want to send a go command to a preplanned route. --- End quote --- Who said it shall be untampered off the shelf drone. Just for flying above trees and landing in known place, transferring coordinates is enough. https://wiredcraft.com/blog/drone-copter-uav-4g-network |
| beanflying:
Cellular can be easily switched off of blocked or traced so what sort of dummy would go on a public grid if they intend mischief? As has been pointed out in the various threads they don't need transmission any more than simple GPS access to do what they are doing if it were a one shot flight with limited chances of reflying. Use a clockwork timer to start it for all it matters. |
| wraper:
--- Quote from: beanflying on December 22, 2018, 01:37:48 am ---Cellular can be easily switched off of blocked or traced so what sort of dummy would go on a public grid if they intend mischief? --- End quote --- Not that easy, if you care about consequences in populated area. Though RF countermeasures would be my first choice. Not easy to trace either if drone operator did a tiny bit of homework. And again, it can be fully autonomous and nothing of that would work except tampering with GPS, Glonass, Beidou. Which again is not that easy if not in close proximity. |
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