Drone helps rescue teens just hours after being unveiled for trial at Lennox Head.
http://www.abc.net.au/news/2018-01-18/drone-rescues-boys-from-surf-lennox-head/9340784
Drone-lovers gunna love this story. I did and I’m ambivalent about drones.
Michael V said:
Drone helps rescue teens just hours after being unveiled for trial at Lennox Head.http://www.abc.net.au/news/2018-01-18/drone-rescues-boys-from-surf-lennox-head/9340784
Drone-lovers gunna love this story. I did and I’m ambivalent about drones.
It is very clear that drones have specific uses. Somne attention needs to be applied to this.
Yes. I love this story.
Flat battery very fast. But yes, nice tech. Nearly as nice as the rocket that delivers survival gear to drowning swimmers.
I know I’m getting cynical in my dotage but it looks like a training video.
It’s just the video footage from the drone, there is not the usual follow up of the boys being interviewed or people on the beach ready to rescue them or other footage etc.
But whatever, it sure is a great resource.
mollwollfumble said:
Flat battery very fast. But yes, nice tech. Nearly as nice as the rocket that delivers survival gear to drowning swimmers.
The Little Rippers, are modified versions of US-built Vapor 55 unmanned aerial vehicles.
The military-grade, battery-powered drones, fitted with a front-mounted camera feeding live footage back to two controllers, can fly up to 100 kilometres and stay airborne for about 150 minutes, flying above beaches and the ocean to spot sharks.
Ian said:
mollwollfumble said:
Flat battery very fast. But yes, nice tech. Nearly as nice as the rocket that delivers survival gear to drowning swimmers.
The Little Rippers, are modified versions of US-built Vapor 55 unmanned aerial vehicles.
The military-grade, battery-powered drones, fitted with a front-mounted camera feeding live footage back to two controllers, can fly up to 100 kilometres and stay airborne for about 150 minutes, flying above beaches and the ocean to spot sharks.
Ah, sorry.
Could you spot drowning swimmers by radar?
mollwollfumble said:
Could you spot drowning swimmers by radar?
no.. not really.
Dropbear said:
mollwollfumble said:
Could you spot drowning swimmers by radar?
no.. not really.
me neither, a life-skill I’ve never picked up
Dropbear said:
mollwollfumble said:
Could you spot drowning swimmers by radar?
no.. not really.
party_pants said:
Dropbear said:
mollwollfumble said:
Could you spot drowning swimmers by radar?
no.. not really.
me neither, a life-skill I’ve never picked up
having said that , we got a new radar fit out on our long ranged rescue vessel, and the resolution if phenomenal. … you can see individual berths and walkways etc in the harbour which is pretty impressive.. the old radar was basically very low resolution “blobby”..
Dropbear said:
party_pants said:
Dropbear said:no.. not really.
me neither, a life-skill I’ve never picked up
having said that , we got a new radar fit out on our long ranged rescue vessel, and the resolution if phenomenal. … you can see individual berths and walkways etc in the harbour which is pretty impressive.. the old radar was basically very low resolution “blobby”..
Do smaller objects show up, vehicles, etc or even people
Cymek said:
Dropbear said:
party_pants said:me neither, a life-skill I’ve never picked up
having said that , we got a new radar fit out on our long ranged rescue vessel, and the resolution if phenomenal. … you can see individual berths and walkways etc in the harbour which is pretty impressive.. the old radar was basically very low resolution “blobby”..
Do smaller objects show up, vehicles, etc or even people
vehicles, definitely…. and it’s kind of weird that the more radar reflective something is, the bigger it appears – it doesn’t actually go by physical size of the object..
ie they put radar reflectors on objects and they stick out on the display like dogs balls.
Dropbear said:
Cymek said:
Dropbear said:having said that , we got a new radar fit out on our long ranged rescue vessel, and the resolution if phenomenal. … you can see individual berths and walkways etc in the harbour which is pretty impressive.. the old radar was basically very low resolution “blobby”..
Do smaller objects show up, vehicles, etc or even people
vehicles, definitely…. and it’s kind of weird that the more radar reflective something is, the bigger it appears – it doesn’t actually go by physical size of the object..
ie they put radar reflectors on objects and they stick out on the display like dogs balls.
Enjoying this chat. Thanks.
we’re also starting to play with drones for use in search and rescue but at the moment we’re using our own personal drones and they don’t play well with water..
we really need someone like DJI to make a drone that’s designed to land (if required on water) because seriously, searching for a person in the water from a boat is damn hard and not very successful.
Dropbear said:
we’re also starting to play with drones for use in search and rescue but at the moment we’re using our own personal drones and they don’t play well with water..we really need someone like DJI to make a drone that’s designed to land (if required on water) because seriously, searching for a person in the water from a boat is damn hard and not very successful.
I can imagine even just for the fact people eyes get tired and you could miss the person by accident
Cymek said:
Dropbear said:
we’re also starting to play with drones for use in search and rescue but at the moment we’re using our own personal drones and they don’t play well with water..we really need someone like DJI to make a drone that’s designed to land (if required on water) because seriously, searching for a person in the water from a boat is damn hard and not very successful.
I can imagine even just for the fact people eyes get tired and you could miss the person by accident
yep…. plus you can’t see very far, and generally, the only part of a body that sticks out of the water is the head,,, a small object in a big body of water..
Dropbear said:
Cymek said:
Dropbear said:
we’re also starting to play with drones for use in search and rescue but at the moment we’re using our own personal drones and they don’t play well with water..we really need someone like DJI to make a drone that’s designed to land (if required on water) because seriously, searching for a person in the water from a boat is damn hard and not very successful.
I can imagine even just for the fact people eyes get tired and you could miss the person by accident
yep…. plus you can’t see very far, and generally, the only part of a body that sticks out of the water is the head,,, a small object in a big body of water..
Would wave type movement and shape interfere with our ability to distinguish objects especially if those objects are of a dull or similar colour to the water
found the image I was looking for.. top left is the radar image from inside the habour at Manly, QLD
Cymek said:
Would wave type movement and shape interfere with our ability to distinguish objects especially if those objects are of a dull or similar colour to the water
absolutely.. in any sort of swell, the thing you’re looking for could well be the trough of a wave at the time you’re looking in that direction
Dropbear said:
found the image I was looking for.. top left is the radar image from inside the habour at Manly, QLD
That’s really clear, quite impressive, you think of radar as the old movie type blurry images
yeh that was my thought.. blew me away … i’m used to little oval shaped blobs ;)
Dropbear said:
yeh that was my thought.. blew me away … i’m used to little oval shaped blobs ;)
it’s all to do with wavelength. they could pick up a subs periscope in ww2 using cm radar.
ChrispenEvan said:
Dropbear said:
yeh that was my thought.. blew me away … i’m used to little oval shaped blobs ;)it’s all to do with wavelength. they could pick up a subs periscope in ww2 using cm radar.
some of it is to do with wavelength… yeh.. some of it is the display etc …
Dropbear said:
yeh that was my thought.. blew me away … i’m used to little oval shaped blobs ;)
the bleeps, the sweeps, and the creeps?
Dropbear said:
ChrispenEvan said:
Dropbear said:
yeh that was my thought.. blew me away … i’m used to little oval shaped blobs ;)it’s all to do with wavelength. they could pick up a subs periscope in ww2 using cm radar.
some of it is to do with wavelength… yeh.. some of it is the display etc …
well yes, the display interprets the scan. the colours help, but you need the resolution in the first place.
just looking at petrol electric hybrid drones. petrol engine drives a genny.
https://www.youtube.com/watch?v=zsOl8ft3T08
Cymek said:
Dropbear said:
found the image I was looking for.. top left is the radar image from inside the habour at Manly, QLD
That’s really clear, quite impressive, you think of radar as the old movie type blurry images
Looking up radar reflectors on Google found this pdf. It compares performance of 10 different types of radar reflectors, with prices ranging from $15 to $500. Results, the $15 octahedral outperformed half the others, but the best was $129.
I wonder if radar reflectors should be standard on life jackets of ocean going yachts?
http://www.yachtingmonthly.com/fileBank/yachtingmonthly/PDF/reflector_performance_ym_june.pdf
“I wonder if radar reflectors should be standard on life jackets of ocean going yachts?”
personal GPS locators and epirbs work better
we have a proximity alarm badge we can wear in rough weather.. if we go overboard, then an alarm goes off and the position is plotted on the GFPS right away..
Dropbear said:
“I wonder if radar reflectors should be standard on life jackets of ocean going yachts?”personal GPS locators and epirbs work better
we have a proximity alarm badge we can wear in rough weather.. if we go overboard, then an alarm goes off and the position is plotted on the GFPS right away..
Check web for epirbs. “Emergency position-indicating radiobeacon station”. “ transmitting a coded message on the 406 MHz distress frequency via satellite and earth stations to the nearest rescue co-ordination centre. Some EPIRBs also have built-in GPS which enables the rescue services to accurately locate you to +/- 50 metres.”
Another random thought – a life jacket that you can still break an olympic swim speed record in. Hire out at beaches.
Use the ones they have on planes. They’re an empty bag but at the first sign of trouble pull down on the tabs. As an added bonus they have a light … and a whistle … to attract attention…
mollwollfumble said:
Dropbear said:
“I wonder if radar reflectors should be standard on life jackets of ocean going yachts?”personal GPS locators and epirbs work better
we have a proximity alarm badge we can wear in rough weather.. if we go overboard, then an alarm goes off and the position is plotted on the GFPS right away..
Check web for epirbs. “Emergency position-indicating radiobeacon station”. “ transmitting a coded message on the 406 MHz distress frequency via satellite and earth stations to the nearest rescue co-ordination centre. Some EPIRBs also have built-in GPS which enables the rescue services to accurately locate you to +/- 50 metres.”
Another random thought – a life jacket that you can still break an olympic swim speed record in. Hire out at beaches.
EPIRBS are awesome and will get you a helicopter within a 100m of your location within fairly short time
furious said:
- Another random thought – a life jacket that you can still break an olympic swim speed record in. Hire out at beaches.
Use the ones they have on planes. They’re an empty bag but at the first sign of trouble pull down on the tabs. As an added bonus they have a light … and a whistle … to attract attention…
yeh i have a horeshoe one that we can inflate in the water – but we don’t wear them crossing the bar or in really rough conditions because if you get knocked out going overboard then you’re fucked …
and yeh the light and whistle is for attracting sharks … :)
Dropbear said:
furious said:
- Another random thought – a life jacket that you can still break an olympic swim speed record in. Hire out at beaches.
Use the ones they have on planes. They’re an empty bag but at the first sign of trouble pull down on the tabs. As an added bonus they have a light … and a whistle … to attract attention…
yeh i have a horeshoe one that we can inflate in the water – but we don’t wear them crossing the bar or in really rough conditions because if you get knocked out going overboard then you’re fucked …
and yeh the light and whistle is for attracting sharks … :)
I was thinking more of adding buoyancy to a wetsuit.
mollwollfumble said:
Dropbear said:
furious said:
- Another random thought – a life jacket that you can still break an olympic swim speed record in. Hire out at beaches.
Use the ones they have on planes. They’re an empty bag but at the first sign of trouble pull down on the tabs. As an added bonus they have a light … and a whistle … to attract attention…
yeh i have a horeshoe one that we can inflate in the water – but we don’t wear them crossing the bar or in really rough conditions because if you get knocked out going overboard then you’re fucked …
and yeh the light and whistle is for attracting sharks … :)
I was thinking more of adding buoyancy to a wetsuit.
it all depends on the use … flotation aids versus open water life preservers..
two very different things.. if you wear a “coastal” lifejacket then it will work for you whether you’re conscious or not .. (supposedly)