A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Helmet-Based Sniper Location System
A network consisting of helmet-based smart nodes can provide a platoon of soldiers with a 3D map of enemy shooters. Wireless links between helmets coordinate acoustic gunshot signature information collected by helmet microphones.
(Breadboard sniper locator system on Kevlar helmet)
Retired U.S. Army Lieutenant Colonel Albert Sciarretta, who assesses new military technologies in urban environments for DARPA, is one of the experts who is impressed by the ISIS system: “It’s strong points are that it isn’t limited to locating shots fired in direct line-of-sight, it can pick up multiple shooters at the same time, and it can identify the caliber and type of weapon that is being fired.”
When a high-powered rifle is fired, it produces two different kinds of sound waves. One is the “muzzle blast” that expands outward in a spherical wave from the muzzle. The second is a conical shock wave that is produced by the bullet as it travels at supersonic speeds. Each node of the shooter location system contains an array of four sensitive microphones. If at least three of the microphones in a single node detect the muzzle blast, the information allows the nodes’ microprocessor to calculate the direction that the sound came from. If the same array also detects the arrival time and angle of the bullet shockwave, a simple calculation gives the shooter’s location.
“Because the microphones on the helmet are so close together, the precision is not very high,” Ledeczi says. “However, the nodes are continuously exchanging the times and angles of arrival for these acoustic signals, along with their own locations and orientations. When two or more nodes detect the shot, they can provide the bearing with better than one degree accuracy. The range is typically within a few meters even from as far as 300 meters. The more sensors that pick up the shot, the more accurate the localization.”
The system can even identify the window from which a sniper is firing, even if the sniper is well inside the building at the time.
(Shooter localization system diagram)
In his excellent 2007 book Quantico, Greg Bear writes about a weapon sound tracker. Use the link below to read Bear's comments about his idea.
Sound trackers on the roof could zero in on weapons action and coordinate return fire through UAVs and their only other air support, the Superhawk.
(Read more about Bear's Weapon Sound Tracker)
A final advantage to the real-life helmet-based sniper location system is the cost. Other shooter location systems cost from $10K to $50K per unit and are quite bulky. The new system weighs just a bit more than the 4 AA batteries that power it and can be made for about $1K.
From Vanderbilt University via Next Big Future.
Scroll down for more stories in the same category. (Story submitted 3/26/2009)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 1 )
Related News Stories -
Slaughterbot AI KIller Quadcopter Drones
'The real border was defended by... a swarm of quasi-independent aerostats.' - Neal Stephenson, 1995.
Russia Working On Military Exoskeletons
'...you look like a big steel gorilla...' - Robert Heinlein, 1959.
TALOS Exoskeleton Development Proceeding
'Suited up, you look like a big steel gorilla...' - Robert Heinlein, 1959.
Britney Spears And Lynn Minmay - Weapons Of Choice
An attack can take many forms.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
LoadRunner Robot Works Alone, Or In A Group
'They marched in unison, seven of them...'
Sierra Space Inflatable LIFE Habitat Burst Pressure Test
'It was like being inside a balloon...'
Longest Immersed Tunnel Will Connect Denmark and Germany
'... iron tubes... the ends of the tubes were joined to each other...to preserve it from the action of the seawater.'
Alcohol-Sensing Cars - NTSB Catches Up With Philip K. Dick (1963)
'Mr. Garden, you are in no condition to drive....'
Solar-Powered Remote-Control Cockroaches!
'A cable, here, from the controller to the interface plug... wires from that to the brain.'
SolarBotanic Tree For Solar Energy - Would You Need A Forest, Or Just One?
'The slender stalks of a sunshade-photocell collector...'
Metaverse Hardware - Run And Flail Like A Maniac, Or Lie Quietly?
'Holodeck 4 was waiting to be programmed...'
Robot Food Delivery Coming To Campus Near You
'... he rewired the delivery robot so that it would serve him midnight snacks.'
Are Craiyon Images Puddinged, ala Philip K. Dick?
'I stood in line for half an hour for this, and it's just a blob!'
Hip'Safe Airbag For Seniors, From Helite
'Other airbags go off around her torso and pelvis...'
Soulaje Self-Administered Euthanasia Wearable Prototype
'A young man... advanced with nervous strides along the gravel path which leads to the bronze doors of the Lethal Chamber.'
Midjourney AI Creates 'Théâtre D'opéra Spatial', Wins Art Fair First Prize
'... we'll give him in his brain what he needs for creation.'
Mobot Robot Tests Smartphone Apps With Its Finger
'Rapidly, purposefully, the metallic fingers moved over the key-boards...'
Space-Based Solar Power A Priority - European Space Agency
'...vast man-made disk of metal set spinning about the sun to supply the Earth with power.'
Goldilocks Zones Found On The Moon
Hopefully, there are no Mynocks in shadowed lunar craters, chewing on the power cables of spacecraft...
Robotic Surgeons Outperform Human Surgeons
'...the objects moving about so gently and putting their instruments away were not living beings, but robots.'
More SF in the News Stories
More Beyond Technovelgy science news stories