An LAPD helicopter claimed to have ID'ed protesters from above and threatened to "come to your house"
Technology
144
Beiträge
76
Kommentatoren
3.2k
Aufrufe
-
Phones can figure out its location using gyroscopes and accelerometer
This is plainly false.
The error stack-up from the imprecision of a phone's MEMS sensors would make positioning basically impossible after a couple of dozen feet, let alone after hours of walking around.
There are experimental inertial navigation systems that can do what you describe, but they use ultra sensitive magnetometers to detect tiny changes in the behavior of laser suspended ultra cold gas clouds that are only a few hundred atoms large. That is not inside your phone.
schrieb am 11. Juni 2025, 11:58 zuletzt editiert vonYou seem to know a lot about this. I'm just generally fascinated by this method of tracking. Would the sensors ever become accurate enough in the future? Or is there a limit to their accuracy due to physics with a small sensor?
-
Right, because nobody lived here prior to the existence of FEMA.
I, for the life of me, cannot understand how people can look at the history of what our, and most other governments have done, and then say, "Hey, you know what? We need more of that!"
schrieb am 11. Juni 2025, 12:16 zuletzt editiert vonYeah, it's not like there's a reason fewer and fewer insurance companies will write a policy in that state every year. It's not like the property insurance rates are the highest in the country.
-
Cool...
This one goes out to all the small government, privacy loving, Republicans out there, supposedly hating invasive big brother tactics and representing the values of the American heartland.
Would be much appreciated if you could have a word with your people about this.
schrieb am 11. Juni 2025, 12:33 zuletzt editiert vonGreen lasers. Everybody should have one.
-
That gives me a good idea. A week before the protest buy burners, use them frequently near republican supporters' house, go to a protest, use your phone all the time in the protest, dump them near the police, let them enjoy the fruits of the regime they supported.
schrieb am 11. Juni 2025, 12:34 zuletzt editiert vonGotta clean and sterilize them.
-
Having a small faraday bag around is useful too, that's what I do.
schrieb am 11. Juni 2025, 12:51 zuletzt editiert vonFaraday bags do not work with 5G
-
That burner cant ever have connected to a cell tower when its near your house, otherwise its not longer a "burner"
Edit: Also: Beware of the possibility of there being malware that logs gyroscope and accelerometer data. Those info can be used to figure out your location, then transmitted whenever it has a chance.
schrieb am 11. Juni 2025, 13:19 zuletzt editiert von frezik@midwest.social 6. Nov. 2025, 15:32Gyro/accelerometer data isn't accurate enough to do that. Small errors in the data add up and will quickly drift away from the actual location. You can use it for video game controllers, but not tracking over large distances. Edit: there's a reason the best VR tracking often uses external methods, not controllers alone.
But most phones have GPS and that's where the real problem is.
-
Faraday cage does not prevent gyroscopes and accelerometers from working. Then if you remove it from a faraday cage in the future, it will transmit all that movement
schrieb am 11. Juni 2025, 13:22 zuletzt editiert vonSince you're posting this all over the thread, I'll also have to repeat the information that gyro/accelerometers are not capable of doing that. Small measurement errors stack up and throw it completely off.
-
Police issues a dispersal order, but blocks all routes to safely leave the area.
Congratulations, you will now be charged as having committed a crime and good luck proving in a court that there was no realistic option for you to leave.
Also police seizes your phone. Congratulations now they access your data and either go after people you have had contact with or they claim you to be part of a criminal organization as they pin other charges on people they found a connection with.
schrieb am 11. Juni 2025, 13:23 zuletzt editiert vonThis is the sort of nuts and bolts of protesting that Americans are learning the hard and fast way.
-
Faraday cage does not prevent gyroscopes and accelerometers from working. Then if you remove it from a faraday cage in the future, it will transmit all that movement
schrieb am 11. Juni 2025, 13:36 zuletzt editiert vonWithout GPS or tower based error correction any location prediction based on conservation of momentum in the phone will be useless before very long if the phone is moving.
-
My concern would be that the police would confiscate my phone. Not that they would necessarily be anything on it, but I don't want them to have my nice expensive phone. They can have this crappy cheap one instead.
schrieb am 11. Juni 2025, 13:37 zuletzt editiert von tamman2000@lemmy.world 6. Nov. 2025, 15:38Do you have a recommendation for a good cheap android phone (didn't worry, I'll run a rom) that one could get to have a "clean" phone?
I've been thinking about getting a phone that has none of my socials on it for when I go to Canada to get vaccines
-
You seem to know a lot about this. I'm just generally fascinated by this method of tracking. Would the sensors ever become accurate enough in the future? Or is there a limit to their accuracy due to physics with a small sensor?
schrieb am 11. Juni 2025, 13:42 zuletzt editiert vonIt will always be a matter of "for how long?". Location from integrated acceleration is what we call a stiff problem. Meaning that any error is compounded as you continue to integrate (slight over simplification, but good enough for the point). There will never be a sensor that has zero error, so it's just a question of how much integration you can do before the errors make the results unusable.
-
Cool...
This one goes out to all the small government, privacy loving, Republicans out there, supposedly hating invasive big brother tactics and representing the values of the American heartland.
Would be much appreciated if you could have a word with your people about this.
schrieb am 11. Juni 2025, 13:58 zuletzt editiert vonLOL
From the country meant to represent freedom. No more!
-
LOL
From the country meant to represent freedom. No more!
schrieb am 11. Juni 2025, 14:09 zuletzt editiert vonNever was
-
Cool...
This one goes out to all the small government, privacy loving, Republicans out there, supposedly hating invasive big brother tactics and representing the values of the American heartland.
Would be much appreciated if you could have a word with your people about this.
schrieb am 11. Juni 2025, 14:10 zuletzt editiert vonA helicopter said all this?
-
Can you imagine 6 dudes with AR-15s, nothing fancy, responding that that threat? One wonders what might happen.
schrieb am 11. Juni 2025, 14:20 zuletzt editiert vonIf gta has taught me anything is that one well placed shot from a measly handgun can take down a chopper
-
I would be shocked if they aren't equipped with puke bags for such an event and then your plan is foiled.
schrieb am 11. Juni 2025, 14:30 zuletzt editiert von tamman2000@lemmy.world 6. Nov. 2025, 18:02I used helicopters a lot when I was on mountain rescue.
I never saw an air sick bag
-
schrieb am 11. Juni 2025, 14:41 zuletzt editiert von
Even a well maintained helicopter is a safety nightmare.
I started my career in aerospace at a company that makes helicopter engines and later I became a search and rescue mountaineer/EMT in a county with more helicopters used for SAR than anywhere else in the US. We beat it into our new members "never pass up the opportunity to turn down a helicopter ride".
The mountain rescue association tracks member fatalities and injuries. Helicopter accidents are, by a large margin, the leading cause of line of duty death in mountain rescue, and we spend only a couple percent of our time in them.
-
Faraday cage does not prevent gyroscopes and accelerometers from working. Then if you remove it from a faraday cage in the future, it will transmit all that movement
schrieb am 11. Juni 2025, 14:56 zuletzt editiert vonSounds theoretically possible I guess...
-
A helicopter said all this?
schrieb am 11. Juni 2025, 15:03 zuletzt editiert vonomg I remember that show lmfao
-
Cool...
This one goes out to all the small government, privacy loving, Republicans out there, supposedly hating invasive big brother tactics and representing the values of the American heartland.
Would be much appreciated if you could have a word with your people about this.
schrieb am 11. Juni 2025, 15:03 zuletzt editiert vonAmerica land of the free /s
