US Military Deploys Personal Gunshot Detectors 257
RedEaredSlider writes "A new warfighting technology will soon be making its way to Afghanistan. US Army forces will be getting gunshot detection systems, which can tell where a shot was fired from. Approximately 13,000 gunshot detection systems will be given to individual footsoldiers later this month, according to the US Army. The system, called Individual Gunshot Detector, has four small acoustic sensors and a small display screen attached to the soldier's body armor that shows the distance and direction of incoming bullets. The sensors are each about the size of a deck of cards and can detect the supersonic sound waves generated by enemy gunfire. It alerts the soldier of the shot's direction in less than one second."
Truth copies fiction (Score:2)
Re:Truth copies fiction (Score:5, Insightful)
I immediately thought of the "red glow of pain" that most modern FPSes have to help you figure out where you're being shot from.
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Pretty sure I saw a thing on TV in the early 90's demonstrating a video-based device that could be used to track gunshots. It could even predict where the bullet would hit before it got there.
In this case, Id say fiction copied non-fiction.
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Now I gotta re-roll a new soldier for the next 250,000-man raid.
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So it's more like the ersatz "radar" display they have in almost every modern FPS.
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Which was the first to have it? I'm having trouble remembering the first time I played a game that told you the direction of incoming fire.
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First I played with the feature was RTCW...
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Heck, try Marathon, back in 1993.
Games have all kinds of different rules for this sort of radar. I'm personally a fan of ones that require at least motion or sound to be able to function, instead of pretending that it's tracking every commando's cell phone or something.
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13,000 gunshot detection systems? (Score:5, Funny)
13,000 gunshot detection systems will be given to individual footsoldiers...
Oh give me a break! How is each soldier going to carry 13,000 gunshot detection systems? Isn't one enough?
LOL he's right (Score:5, Funny)
Sup dawg, I heard you like gunshot detectors, so I put 12,999 gunshot detectors in your gunshot detector so you can detect shots while you detect shots while you detect shots while you detect shots whi [FIELD TRUNCATED]
Re:13,000 gunshot detection systems? (Score:5, Funny)
I think you misunderstood. Get a clue, there is only one detector!
What the system does is that it detects if someone fires 13,000 gunshots at you.
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I think you misunderstood...What the system does is that it detects if someone fires 13,000 gunshots at you.
But only if that person shooting has something against you in particular. If he's thinking something like "I'm sick of carrying this damn ammo, I may as well shoot it at that guy over there," the system won't register.
It'll help us figure out whether we're winning hearts and minds by deducting all the shots taken at us for *personal* reasons from the ones taken at us because the shooter hates *all* Americans.
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TRINITY: Dodge this, Agent Smith!
fireworks (Score:3, Interesting)
Would they foil this? They're loud. But don't move at the speed of sound.
I doubt it (Score:3, Informative)
With experience, one can not only learn to distinguish gunfire from vaguely gunfire-like sounds (fireworks, backfiring cars and so forth), but get a pretty good approximation of the type of weapon being fired - sometimes even down to specific models. If a human ear can learn to make such fine distinctions then surely a purpose-built sensor can do at least as well.
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It doesn't need to open. See, there's this miraculous property called sound transduction. Vibrations on one side of a membrane or other surface can, if the materials are correct, transduce to the other side.
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If it was an "ambush" you would probably try to have them surrounded anyway. And it takes how long to pivot 180 degrees? I know everyone wants to be the analytical spoilsport and think "how can we make this fail" but honestly making it fail is just not even a big deal. It's only even going to be a fraction of the soldiers who have these devices, so you are at best you are temporarily fooling one guy in the group you are attacking. I imagine the primary use of this is that, if bullets start flying and y
Re:fireworks (Score:5, Insightful)
I imagine the primary use of this is that, if bullets start flying and you take cover, you will be able to figure out where to return fire (or send backup, etc.) without needing to pop your head out first.
That's more or less right. If the bullets are flying in large quantities it's generally not hard to figure out where they're coming from, but if you've got one or two snipers taking potshots at your platoon, it can be quite difficult to find them. In those cases, the traditional method for locating the shooter involves the section/squad commander yelling "charlie team, take a bound!". This seems much safer.
Difference between enlisted and officers... (Score:2)
Is that officers have an even safer and smarter way o
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Yeah, it's the same weapon essentially. I used a 240 when we did cross-training in the US and as far as I could tell the only differences were purely cosmetic. I started using this username back when the C6 was my primary weapon (late 90's) and just stuck with it. Haven't actually touched one in years.
Thanks for the compliments. Back when I was a private/corporal, we used to make fun of the US infantry a lot - you guys had some awesome toys but the caliber of the average soldier wasn't particularly impr
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To throw off their gunshot detectors and prep them for an ambush from another direction.
Or you can skip the fireworks and just shoot at them from two directions.
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Or you can skip the fireworks and just shoot at them from two directions.
See above reply to Posting=!Working. Not if you only have enough fighters to cover a single direction.
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Because the sound from the gunshot comes from the location of the gun, also known as the location of the soon to be dead guy doing the distracting.
Whereas the sound from a firework comes from the location of the firework which, if the guy has any sense at all, isn't the same as the location of the guy doing the distracting because he threw it.
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... then they wedge an AK into the rocks with a string noose around the trigger and grip? Yank the cord and the authentic-sounding (because it is) AK rocks-n-rolls and makes a hell of a lot of noise.
Replace said AK with just about any weapon that fires. Automatic for the most "bang" for your buck, but even a single shot decoy would be enough to give you more advantage than you had without it.
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Because soldiers are so stupid as to not consider that there might be enemies in more than one location?
You already get a sense of the direction of a sound from your ears, but not wonderfully precise. Having more precise information would be useful, the soldiers aren't going to be dumb enough to expose themselves in order to hide from that one sound (well some might I guess, but they won't be soldiers for very much longer either way).
The enemy can easily arrange for an actual gunshot to be fired in some loc
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Would they foil this? They're loud. But don't move at the speed of sound.
From TFA, "The sensors are each about the size of a deck of cards and can detect the supersonic sound waves generated by enemy gunfire."
So what happens if they use sub-sonic rounds? They are use by the military, typically special forces, as they are rather quite. I'm sure you can find plenty of info on the net about how to make them at home even.
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Regular soldiers/insurgents/whatever are probably not going to use subsonic ammo if they have a choice, especially because the body armor and helmets worn these days do pretty well against them - they are intended to protect from shrapnel and rifle rounds!
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Not all .45 is subsonic, only specific lower-powered loads.
(speed of sound at sea level is 1116 f/s (or 340 m/s)
"supersonic sound waves" (Score:5, Insightful)
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if it is really detecting supersonic sound waves, it needs to be re-calibrated methinks...
Why? Are you not familiar with the concept of a shock wave?
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Whoosh!
(which is sonic)
((if it were supersonic, it wouldn't be sound))
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Shock waves are never supersonic for long - they can start out that way given enough energy, but they pile up at a sped-of-sound-in-material expanding interface really quickly.
I suspect these sensors use the sonic boom made by a travelling bullet to locate the gun in some fashion, as opposed to the sound the exploding powder makes inside the gun - either of which could be termed the sound of a gunshot, but it's usually the sonic boom from the bullet that you hear.
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Only at ranges where the muzzle report has died out before it reaches you. But in all cases, you'll hear the shockfront from the bullet before the muzzle report.
Though, the bullet still hits the mark before you hear anything. Better make those shots count, Tewwowwists!
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Ah, but the shock front is. And the waves breaking off from said front make a very characteristic sound...
Genius in Marketing. (Score:4, Funny)
"...The system, called Individual Gunshot Detector...
Really? All kinds of kick-ass program names and acronyms in the Military's arsenal of weapon nomenclature, and the best you could do was..."Individual Gunshot Detector"? Sheesh.
I guess there is one benefit to that generic name...I'll reserve the right to slap the shit out of anyone that asks the question "what does it do?"
Re:Genius in Marketing. (Score:5, Insightful)
4-directional Sonic Input Gunshot Heading Triangulator
4SIGHT
It's a sad day when the military can't come up with a good backronym.
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Hey if you guys like that name you can have it in exchange for a tour of Area 51,* I promise I won't tell! :D
*OK, I know that's not gonna happen...I'll settle for Pine Gap.
Or (Score:5, Funny)
4way Sonic Kinetic Inference Notifier
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Does this mean Jewish privates will not be issued one?
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"Hey do you have an STD yet?"
"No, I keep trying to get one but the armory guys always give them to other soldiers first and say they can't give out any more for the day. I don't think they like me."
"I'll give you one. Just bend forward a bit so I can put it in your utility belt....uuuuuhhh it's a tight fit...come on push back a little...AH OK it's in"
"Thanks!"
"Any time ;)"
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.I'll reserve the right to slap the shit out of anyone that asks the question "what does it do?"
Be careful. The kind of idiot that needs a gadget to tell him he's been shot might very well take you up on that.
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and the best you could do was..."Individual Gunshot Detector"
And what's even weirder is that the acronym that TFA attaches to that is IDG.
LOL, IDK, shouldn't it be IGD?
IDG may be better acronym than IGD (Score:2)
and the best you could do was..."Individual Gunshot Detector"
And what's even weirder is that the acronym that TFA attaches to that is IDG.
LOL, IDK, shouldn't it be IGD?
Assuming its not a typo there actually is logic for IDG. Military nomenclature likes a noun,adjective type of format. Consider:
Individual Detector, Gunshot
Individual Detector, Explosion
Individual Detector, Radiation
Individual Detector, Chemical
Seeing something labeled IDx would then suggest its basic function of individual detector.
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Ok, ok. Lets call it the 'iBang'.
If it works, great (Score:3, Insightful)
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I actually saw this initially as a larger bit of technology on Discovery a couple of years ago. It could triangulate and range gun-shots pretty damned well.
I suspect this is the same thing but evolved a bit and scaled down to be portable.
Given what it purports to do, I suspect it's pretty easy to verify ... Shoot various guns at various ranges, and see if several people spread out over a distance can all point to the source. I should think that would be something the army could set up in an extremely shor
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Bonus points if you can use triangulation from multiple people to feed back to Predator/Global Hawk drones that can be directed autonomously to the predicted location of the sniper/gunmen is. You'll still want an Air Force office confirming before firing, but you can automate the fark out of this.
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Bonus points if you can use triangulation from multiple people to feed back to Predator/Global Hawk drones that can be directed autonomously to the predicted location of the sniper/gunmen is. You'll still want an Air Force office confirming before firing, but you can automate the fark out of this.
I don't think Global Hawks carry any armament. They can provide intelligence to direct fire from other sources though. Reapers are generally the heavy hitters of the unmanned variety.
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Correct. It all depends on what equipment you have in theater. If all you have is a Global Hawk, you send it to provide information back to ground forces. If you have a Reaper, well, the problem is that much easier to solve.
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If this saves any lives, then I'm all for it.
It's certain this won't save the lives of any Afghans or Iraqis, whether the bullets are coming from a helicopter a mile away or a soldier that just kicked in his front door.
Re:If it works, great (Score:5, Insightful)
If this saves any lives, then I'm all for it.
It's certain this won't save the lives of any Afghans or Iraqis, whether the bullets are coming from a helicopter a mile away or a soldier that just kicked in his front door.
It might, actually. If the American soldiers are better able to determine where they are being shot at from, there is less likelihood of them shooting back at the wrong place. It should, to some extent, reduce "collateral damage".
Of course, I have my doubts about the usefulness in an urban environment (where it would have the most positive effect for reducing collateral damage), where I would think the complicated environment (lots of echoes) would confuse such a device. Maybe they get around that by concentrating on these wondrous sound waves that move faster than the speed of sound.
Not Much Help Against the First Shot (Score:2)
Re:Not Much Help Against the First Shot (Score:4, Informative)
Which is the point, right now without gunshot senors the unit is pinned down trying to determine the location of the sniper.
They've been using them in police and military applications for over ten years.
And yea, fireworks don't spoof them
http://en.wikipedia.org/wiki/Gunfire_locator [wikipedia.org]
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I've maintained for a long time that these are not the best idea.
If I wanted to commit a robbery on the West end of town, I'd have a bunch of guys go through the East side and dump a few magazines, then drive off. The police would be dispatched there and busy trying to figure out what happened while the real crime was happening on the other end of town.
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Thats why most police departments have more than one police station and more than one cop car.
Even during the North LA bank robbery, not every cop in the LAPD was dispatched there.
For your example - guys on the East Side fire off a bunch of rounds, car(s) are dispatched for shots fired calls, they don't see bloody corpses in the streets, they call it back in as responded too and go on to the next call.
West End of town, alarms go off and the police over there still respond.
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I obviously don't mean *all* of the police force - but a large portion, surely, if it was enough gunfire.
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I've been surprised that these things haven't been seen more commonly until now, particularly for battlefield deployment where they would be really useful. I debated doing development on them myself--the algorithms are very much like particle-location algorithms used in large cherenkov detectrors like Kamiokande and SNO--but really prefer to focus my time on economically productive activity.
As military tech goes, though, this is fairly nice: it only endangers people who have already started shooting, and
just wondering (Score:2, Interesting)
What about subsonic rounds? subsonic rounds + silencer = near invisible sniper.
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Subsonic rounds have lower penetration and range. Suppressors decrease this further. So the sniper has to get in closer, at which point s/he runs the risk of being spotted while en route. If I were the sniper, I'd rather go with "loud and clear, huh?", but usable from far, far away.
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First world snipers generally use guns that redirect the sound and flash, so the targets can hear it, but it is very hard to locate specifically.
The snipers shooting at first world armies generally use whatever hand-me-down battle rifle they happen to have, at a range that tries to be "just outside of what an M4 is comfortable with."
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With very limited range, and little to no ability to penetrate modern body armor.
And there are radar systems in place on Strykers and emplaced that do the same thing, without relying on the sonic crack.
I always thought "ouch!" (Score:2, Funny)
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Yeah, it's called a CNS (Score:2)
Yeah, it's called a Central Nervous System.
"Ow! I've been shot!" :)
new slang (Score:2)
Its called a SWATS detector. (Score:5, Interesting)
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At the very least, I should think knowing what you might be able to take cover behind would come in handy.
At, least until you can decide how to respond more decisively.
(Of, course, like most Slashdotters, I'll just stop at the taking cover phase and leave the actual soldiering to people like you ... I think it's safe to say most people reading here would not be very useful in a firefight, no matter how many video games they've played. ;-)
That was fast (Score:2)
Of course, it remains to be seen if this iteration is of any use either, or if minor quibbles like echoes from buildings and gully walls are still rendering them expensive porkbarrel fodder.
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Do these things network? (Score:2)
From an individual device, you can only get a rough direction. But with timestamped events from multiple locations, you can get the actual location of the target. That's much more useful. You can transmit the target coordinates to artillery.
A gun-location app for a smartphone is quite possible. There's a microphone, a GPS, compute power, and comm.
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What I got out of GP's comment was that civilians' cellphones could be used en masse to detect gunshot vectors.
Prior Art (Score:2)
I think you will find prior art in the original Journey of the Center of the Earth movie with the echo direction locator they carried.
Now we know that this device will fall into enemy hands. What is the risk if our enemy has this same device? Maybe they should also develop a ventriquist barrel attachment to make the sound seem to come from one of the enemy positions. They can probably get a good design from some of the hackers that do IP masquerading
friendly fire (Score:2)
Mesh network (Score:2)
I hope these things network together. Because (unfortunately) the person who's sensor initially detects the shot may no longer be around to do anything about it. Other members of the patrol need to know the source.
Aliens now truer than ever (Score:2)
Hudson: Movement. Signal's clean. Range, 20 meters.
Ripley: They've found a way in, something we've missed.
Hicks: We didn't miss anything.
Hudson: 17 meters.
Ripley: [Checking the tracker] Something in the floor, underneath the plant, I don't know
Hudson: 15 Meters.
Newt: Ripley.
Hicks: Definitely inside the barricades.
Newt: Let's go.
Hudson: 12 meters.
Ripley: That's right outside the door. Hicks, Vasquez get back.
Hudson: Man, this is a big fuckin' signal.
Hicks: How are we doing Vasquez, talk to me?
Vasquez: Almost
Ghost Recon? (Score:2)
They had that in Ghost Recon.
http://gamestyle.com/media/images/games/screenshots/large/xbox-ghostrecon-100710-05.jpg [gamestyle.com]
Seemed goofy at the time, but a good solution for a video game. Now it's real? Awesome :)
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I'm interested in these devices that "can detect the supersonic sound waves generated by enemy gunfire."
Supersonic sound waves? As in, sound that travels faster than sound?
Odd.~
Yes, it is called a shock wave.
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The "front" of a shock wave does travel faster than the speed of sound. It is its expansion that travels at the speed of sound. If a speeding bullet creates a cone-shaped shock wave, that cone is moving forward at the same speed as the bullet - supersonic - although its diameter at any point is determined by the shock wave moving outward at the speed of sound.
http://en.wikipedia.org/wiki/Shock_wave [wikipedia.org]
To make any useful information from the shock wave of a bullet, it does seem to me that it would have to miss y
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If that's the case, it could be foiled by something like a VSS Vintorez, which fires a 9x39mm subsonic round. The round was originally designed to remain subsonic to assist in suppression, but this could make the caliber more advantageous than it already was.
I wonder if these types of Soviet weapons are available in Iraq in quantity? Surely they are in Afghanistan, though ammunition in the oddball caliber might be hard to come by.
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Of course - even in the US. 9x39mm is not a common round, though. We're not talking 7.62x39mm or 7.62x54R. I seriously doubt you'll be able to find quantities of 9x39mm in the Mideast available to the average Jihadi Joe.
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So, you're inviting us all to take potshots at you with .22 subsonics then, since it's so harmless?
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We hope the enemy miss the first shot.
We already do that. Now we just might be able to make sure they don't get a second shot.
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That would be a good metaphor if it included something about huge farm conglomerates manipulating food standards and changing the diets of the public in the same way that military service providers manipulate the government into more war, except then it wouldn't fit in with your poorly informed conception of history because it's actually happening.
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A question. In an urban environment, where the device is unaware of the surrounding geometry, how is it going to compensate for all the sound reflections ?
The acoustic signature of a reflection is different from a direct wave (timing, phase, amplitude). It's not a trivial process to decide which is which and that is why you first saw these things as big, bulky items hung on the front of some vehicle. As time and research progressed, they were likely able to clean up the algorithms and hardware, thus the itty bitty thing in TFA.
Progress!
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Bullseye.
TFA reads like an edited version of a sales brochure.
"About the size of a deck of cards"
Except for that ridiculous cord and the massive battery pack stupidly strapped to the poor fuck's shoulder...
"It's very light, only 2 pounds"
2 pounds othat will help me in those situations where I can't hear or see where the fire is coming from, and will otherwise just add dead weight to the other 50 lbs of shit I have to lug into the field every day.
And I bet you could do this with an Android phone for about 1/
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Heidi-heidi-heidi-hee,
My recruiter lied to me.
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Did your ears work better than these did? Canyons are probably where these would be most needed, if they could discriminate on amplitude. Just tell me where the loudest one is, because he's likely the closest. Of course, parabolic ruts in the canyon walls could be trouble there...
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The most difficult part of any immediate action response to a sniper and/or many kinds of ambushes is determining where the fire is coming from.