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India Installs 'Laser Walls' At Border With Pakistan (nbcnews.com)
schwit1 writes: After experimenting with barbed wire, surveillance cameras and even cowbells and camels, India has now reportedly introduced "laser walls" at its border with archenemy Pakistan. Both New Delhi and Islamabad deploy more than half of their 1 million and 600,000-strong armies, respectively, on the border. India is setting up the laser walls to "plug the porous riverine and treacherous terrain and keep an effective vigil against intruders and terrorists" in Punjab state, the state-run Press Trust of India reported. According to the PTI report, around 45 laser walls will be installed in Punjab state. Lasers beamed over rivers and hills will set off an alarm and alert the Indian Border Security Force if someone attempts to pass by, it added.
No, the trick is to ride horses because the beams are so smart they don't send false positives every 10 minutes when animals walk through.
Can't ever discuss these two without bringing up the Wagash ceremony.
Bruce Perens.
It's a detection system
Or they could use a mirror to reflect the beams back to the senors and walk through. Also, did India get Pakistan to pay for this wall?
now if they manage to put those lasers on sharks... it's gonna be awesome.... but maybe they don't have the budget for sharks :p
Never antropomorphize computers, they do not like that
If they use the same techniques used in laser surveying equipment, they would be able to detect a change in the length of the beam path. However, I suspect that would be really pricey. I assume the actually transmit a modulated signal instead of a constant beam, so you can't fool it just be flooding the receiver with light. I still think digging a trench and driving under the beam is the easiest way to sneak across. But then, the question is, why use laser beams at all, instead of IR cameras with motion detection? Technology to recognize movement in a video image has been around for at least 35 years, since I maintained a system used on the Alaska Pipeline to monitor pumps for failure 35 years ago.
I've abandoned my search for truth; now I'm just looking for some useful delusions.
You use modulated beams encoded with a non-repeating data stream so that any variance in latency resulting from deflection of the beam can be detected.
Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
Trump ... border defense ... 7-11 ... there's a joke here somewhere.
A quick blow of face powder or even a vape cloud followed by a rapidly planned series of handstands and cartwheels will easily allow you safe passage. What were they thinking?
They have half a million soldiers by the borders already, some officer will always find someone to send to check those up because they will be bored and would like to command someone around