181–190 of 286 posts
Earlier quoted context omitted.
As someone who has worked in AV perception this is unfortunately way too accurate lol, so much training set whack-a-mole
Like, they may have trained on power lines, catenaries above rail tracks, network cables, etc. but all of them are horizontal. And the software couldn't recognize vertical cables or cables at an angle.
With tens of thousands of guyed towers in the United States, that's a bad omission.
Earlier quoted context omitted.
You may have a tall mas or an antenna and massive cables stretching at angles around it for support. The distance between the base of the mast and the base of supporting cables can be quite large, so even a simple logic like "stay 100m away from tall structures" can be insufficient. It would be interesting to see what comes out of this investigation. Hopefully the injured person will be alright.
> "stay 100m away from tall structures" But then how do you deliver to the upper floors of vertical buildings? That must be half the near-term market for these kinds of drones: people in dense, urban areas well-served by local droneports, who are looking for convenience above all else. If you can't safely manage urban canyons—you can't manage. It'd be like selling self-driving cars that are only approved for private…
Little after 10am, pure speculation but wonder if the angle of the sun overwhelmed the dynamic range of the image sensor over a particularly inopportune area of the frame. Guessing no LiDAR on drones like this.
Based on the descriptions I've read so far, it sounds like the drones didn't give enough space around the crane boom, which it seems like they avoided. That's not to make an excuse. But it's a different defect than failing to detect the crane boom.
(my degree is in digital imaging technology so, fun thinking problems for me :)
Earlier quoted context omitted.
You may have a tall mas or an antenna and massive cables stretching at angles around it for support. The distance between the base of the mast and the base of supporting cables can be quite large, so even a simple logic like "stay 100m away from tall structures" can be insufficient. It would be interesting to see what comes out of this investigation. Hopefully the injured person will be alright.
> "stay 100m away from tall structures" But then how do you deliver to the upper floors of vertical buildings? That must be half the near-term market for these kinds of drones: people in dense, urban areas well-served by local droneports, who are looking for convenience above all else. If you can't safely manage urban canyons—you can't manage. It'd be like selling self-driving cars that are only approved for private…
China hasn't had much general aviation. There are very few private aircraft. So there was nothing like the US's FAA Flight Service Stations. Plans to change that started in 2018, as a new design, mostly automated. That system also handles drones above 120 meters, or is supposed to.
[1] https://businessaviation.aero/evtol-news-and-electric-aircra...
To be clear, they crashed into the vertical cable hanging down from the end of the crane. Not into the structure of the crane itself. So it's not as bad as "they don't see cranes". But it absolutely raises the question of whether they can see cables , whether hanging from cranes or spanning telephone poles. And honestly, cables are really hard to see in the air. That's literally why high-voltage power lines hang thos…
China is way ahead here. There's now a Ministry of the Low Altitude Economy.[1] There's a Low Altitude Flight Service System, which is air traffic control for drones and flying cars. There are licenses for drone operators, categories of license, (advanced licenses require a flight exam), etc. China hasn't had much general aviation. There are very few private aircraft. So there was nothing like the US's FAA Flight Ser…
To be clear, they crashed into the vertical cable hanging down from the end of the crane. Not into the structure of the crane itself. So it's not as bad as "they don't see cranes". But it absolutely raises the question of whether they can see cables , whether hanging from cranes or spanning telephone poles. And honestly, cables are really hard to see in the air. That's literally why high-voltage power lines hang thos…
Probably this one. Even if the drone sees the crane, there's no guarantee the cable won't move faster than the drone can react.
To be clear, they crashed into the vertical cable hanging down from the end of the crane. Not into the structure of the crane itself. So it's not as bad as "they don't see cranes". But it absolutely raises the question of whether they can see cables , whether hanging from cranes or spanning telephone poles. And honestly, cables are really hard to see in the air. That's literally why high-voltage power lines hang thos…
Flying machines are never to be flown near cables. It's not like human pilots on a helicopter can detect and avoid the cables in the first place. Long-distance transmission wires are sometimes inspected with helicopters, so I guess there are exceptions and protocols, but outside those, flying machines just aren't supposed to fly near cables except for explicit intent to catch them. Especially across or under. You may…