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I will push back on you a bit there. Most people can only cover a couple of dozen miles a day, depending on the person and the terrain. A lot of the time, they

I will push back on you a bit there. Most people can only cover a couple of dozen miles a day, depending on the person and the terrain. A lot of the time, they realize they are lost and will yell or try to make themselves found. Maybe a high foliage environment would be a better target for directional mics / acoustics. I think the search and rescue efforts as they stand are pretty disruptive (helicopters, teams covering grids) so I don't think this is incrementally much worse. The "unprepared skiiers" (or hikers, sailors) you mention are someone's child and often someone's parent. They are loved and mourned, and it's a bit easier to get lost than is generally appreciated. A sea rescue is a different ball of wax than a forest rescue, and I was freely mixing both situations. In the sea setting, Plant Labs or a aerial drone like a predator (like commercializing existing military tech, eg, GPS) is more appropriate, perhaps. The biggest obstacle here is staging these for use and being available in a timely manner, on the order of hours.

Alupis 6y ago
> Maybe a high foliage environment would be a better target for directional mics / acoustics. I don't think this works as well as you might hope. When in dense foliage, it's difficult to hear sounds that are not that far away. It's a fantastic noise insulator. For this reason, survival classes usually teach signalling with reflective surfaces, like mirrors, watch faces, metal object/knives, etc. If you can sweep a helicopter with a reflection several times, they'll notice and rightfully think it's man-made. Plus, you can't hear someone screaming over a helicopter anyway. > I think the search and rescue efforts as they stand are pretty disruptive (helicopters, teams covering grids) so I don't thin this is incrementally worse. Certainly they are, but I do think drones close to the ground would be incredibly more disruptive, and potentially dangerous to curious wildlife. > The "unprepared skiiers" you mention are someone's child (and often someone's parent). You are not wrong. I think I was getting at, that most rescues are unglamorous, and usually caused by sheer stupidity of the people that were lost. Boats running out of fuel because they didn't prepare properly, or the skier example of ignoring all warnings, etc. It's not often that people were prepared, and the rock beneath their feet gave-way and now they're trapped. Yes, we have to rescue stupid people too, but I think we should weigh the external costs to the environment when doing so. We wouldn't drain a lake to find a missing person. Maybe that's not a fair comparison? I don't know... but I do know people went outdoors to experience nature, so we shouldn't destroy it trying to save people either. I guess, in short, you can make this scheme work, but I don't think it'll add tangible benefits to rescues, and it might actually be more effort to manage and operate, which could suck resources away from actual "boots on the ground/in the sky".
- hluska 6y ago
  These are good points too. I like the idea of being able to deploy drones into areas where weather/conditions expose search and rescue teams to immense personal risks. I know so little about boats or the ocean that I’m nowhere near qualified to even have an opinion. But I wonder about applications in mountain ranges where highly experienced climbers run into constantly shifting weather or unpredictable avalanche threats. At some point, search and rescue techs have to call off searches because the conditions that lead to the original disaster threaten to lead them into the very same kind of disaster. Programmatically, that’s a very difficult problem and I can see many problems with solving it in any sort of efficient way. But armed with some education about good emergency beacons and ways to make your team visible to drone rescuers, I think there’s something there. The crap part of search and rescue is that teams tend to go out to rescue anyone who needs it. There was an incident near Calgary several years ago when a man decided to go for a hike but didn’t have enough experience in the mountains to realize that getting down is significantly more difficult than climbing up. He didn’t survive that mistake and a SAR team found him without incident. But had weather conditions been any different, it’s sad to think that those skilled, loving people could have needed their own rescue while trying to find someone whose lack of experience lead to a personal disaster...
hluska 6y ago
I agree with what you’re saying and I’ll add another point in your favour. At points, SAR teams have to make really difficult choices. Consider rescue operations in mountain ranges. Search and rescue teams have to contend with the same kinds of conditions that often lead extremely experienced, skilled teams to disaster. Ground teams, for example, have to deal with avalanche risks. Air teams have to deal with constantly shifting weather patterns. There’s a point when they have to call off searches as it’s often not worth sacrificing their own lives to find people who went into ranges on their own volition, got lost, ran into bad weather or got diverted, stranded (or worse) due to avalanches. A drone based rescue operation takes that extra risk of death away. Programmatically though, that leads to all sorts of other problems. One sad fact of mountain ranges is that while most climbers practice excellent hygiene and etiquette, there are others who leave ropes, gear and debris behind. But combined with education on good disaster beacons and ways to make your team highly visible to computers, I think you’re onto something. This is an excellent idea and if I had solved the money problem, I’d take it and run. Alas, I haven’t so I hope someone else sees this idea and goes with it. It sounds like something that SAR communities would be interested in. Depending on how interested you are in a follow up, it might be worth putting this concept forward to groups like the Alpine Club of Canada or any of the communities where SAR technicians hang out. Good idea friend and I like how you articulated it!! Good luck!!!

Alupis 6y ago

> Maybe a high foliage environment would be a better target for directional mics / acoustics. I don't think this works as well as you might hope. When in dense foliage, it's difficult to hear sounds that are not that far away. It's a fantastic noise insulator. For this reason, survival classes usually teach signalling with reflective surfaces, like mirrors, watch faces, metal object/knives, etc. If you can sweep a helicopter with a reflection several times, they'll notice and rightfully think it's man-made. Plus, you can't hear someone screaming over a helicopter anyway. > I think the search and rescue efforts as they stand are pretty disruptive (helicopters, teams covering grids) so I don't thin this is incrementally worse. Certainly they are, but I do think drones close to the ground would be incredibly more disruptive, and potentially dangerous to curious wildlife. > The "unprepared skiiers" you mention are someone's child (and often someone's parent). You are not wrong. I think I was getting at, that most rescues are unglamorous, and usually caused by sheer stupidity of the people that were lost. Boats running out of fuel because they didn't prepare properly, or the skier example of ignoring all warnings, etc. It's not often that people were prepared, and the rock beneath their feet gave-way and now they're trapped. Yes, we have to rescue stupid people too, but I think we should weigh the external costs to the environment when doing so. We wouldn't drain a lake to find a missing person. Maybe that's not a fair comparison? I don't know... but I do know people went outdoors to experience nature, so we shouldn't destroy it trying to save people either. I guess, in short, you can make this scheme work, but I don't think it'll add tangible benefits to rescues, and it might actually be more effort to manage and operate, which could suck resources away from actual "boots on the ground/in the sky".

hluska 6y ago
These are good points too. I like the idea of being able to deploy drones into areas where weather/conditions expose search and rescue teams to immense personal risks. I know so little about boats or the ocean that I’m nowhere near qualified to even have an opinion. But I wonder about applications in mountain ranges where highly experienced climbers run into constantly shifting weather or unpredictable avalanche threats. At some point, search and rescue techs have to call off searches because the conditions that lead to the original disaster threaten to lead them into the very same kind of disaster. Programmatically, that’s a very difficult problem and I can see many problems with solving it in any sort of efficient way. But armed with some education about good emergency beacons and ways to make your team visible to drone rescuers, I think there’s something there. The crap part of search and rescue is that teams tend to go out to rescue anyone who needs it. There was an incident near Calgary several years ago when a man decided to go for a hike but didn’t have enough experience in the mountains to realize that getting down is significantly more difficult than climbing up. He didn’t survive that mistake and a SAR team found him without incident. But had weather conditions been any different, it’s sad to think that those skilled, loving people could have needed their own rescue while trying to find someone whose lack of experience lead to a personal disaster...

hluska 6y ago

I agree with what you’re saying and I’ll add another point in your favour. At points, SAR teams have to make really difficult choices. Consider rescue operations in mountain ranges. Search and rescue teams have to contend with the same kinds of conditions that often lead extremely experienced, skilled teams to disaster. Ground teams, for example, have to deal with avalanche risks. Air teams have to deal with constantly shifting weather patterns. There’s a point when they have to call off searches as it’s often not worth sacrificing their own lives to find people who went into ranges on their own volition, got lost, ran into bad weather or got diverted, stranded (or worse) due to avalanches. A drone based rescue operation takes that extra risk of death away. Programmatically though, that leads to all sorts of other problems. One sad fact of mountain ranges is that while most climbers practice excellent hygiene and etiquette, there are others who leave ropes, gear and debris behind. But combined with education on good disaster beacons and ways to make your team highly visible to computers, I think you’re onto something. This is an excellent idea and if I had solved the money problem, I’d take it and run. Alas, I haven’t so I hope someone else sees this idea and goes with it. It sounds like something that SAR communities would be interested in. Depending on how interested you are in a follow up, it might be worth putting this concept forward to groups like the Alpine Club of Canada or any of the communities where SAR technicians hang out. Good idea friend and I like how you articulated it!! Good luck!!!