Friday, March 20, 2009

Combatting Gun-Related Violence Wirelessly


Imagine a world where gunshots could be stopped long before they were fired.

Well, that might be a bit farfetched, but at Johns Hopkins University, researchers are working so that dream becomes a reality. The 140-acre, 6,400-student university in downtown Baltimore is currently testing a gunshot detection system in an attempt to reduce gunfire and increase campus safety.

However, gunshot detection systems aren't new by any means. Law enforcement agencies, homeland security and the military have been utilizing explosion location and detection systems like Shotspotter for years, not to mention stadiums, convention centers and many major metropolitan areas.

Although unsuccessful thus far (aside from detecting two car backfires), Johns Hopkins' system has great potential and could pave the way for more massive private deployments to come. Ninety-three sensors located across the campus can detect and triangulate gunshot activity wirelessly to enable dispatchers to see locations of where a gunshot was fired within ten feet and within five seconds of the bullet being fired.

While the system faces challenges with detecting gunshots fired indoors, as well as differentiating it from similar sounds, such as cars backfiring, this system, and others like it, enable police officers to arrive on the scene to more quickly begin caring for victims and enable more efficient investigations. Plus, some are correlating these initiatives to drops in gun-related violence.

Another layer of protection to reduce gunfire and increase safety...not a bad idea for college campuses to start looking into. I see more universities jumping on this bandwagon, particularly in tougher areas.

Labels: , , ,


Tuesday, February 10, 2009

Every Step You Take, Someone (Or Something) Will Be Watching You


Just came across this feature on wireless surveillance cameras taking on some unusual forms around the industry.

A teddy bear that captures video through its left eye? Cameras in such innocuous household items as a boombox, a set of computer speakers, or a wall clock? An air purifier capable of 420 lines of resolution? They all exist. Even jacket buttons and Clorox Bleach wipe containers are now capable of carrying cameras!

Next time you're snooping around a friend's house or checking out their medicine cabinet, you might want to think twice before whether the mantle clock or Pringles can might be catching you in the act.

Labels: , , ,


Thursday, November 1, 2007

Cell Phone Surveillance

Researchers in Switzerland have announced software to take your cell phone in an entirely new direction. In addition to texting, playing music, watching videos, and surfing the Web, you will now also be able to create your own ad-hoc wireless mesh intelligent video surveillance network...all with the same device you use to call your mother. Their software package is called Facet.
When a Facet-enabled phone detects an object entering or leaving its field of view it communicates the information to adjacent phones via Bluetooth. In this way, the message can be passed to the whole network. The system can collectively analyze data. Each phone determines how far it is away from its nearest neighbor, based on how long it takes a person to walk between phones.

I think I’ll wait for the iPhone edition.

Labels: , ,