IPVMU Certified | 09/20/13 07:21pm
Laser detection products are out there (see Optex's Redscan for example) but they are costly compared to other technologies.
Ground based radar, thermal cameras, and microwave sensors are more economical. There are too many products out there to directly compare accuracy of one technology versus the others, but most generally carry a manageable overhead of false alarms when deployed properly.
Thermal cameras, for example, are equal to or less expensive than Redscan's ~$5000 pricetag, yet have a longer range.
When it comes to pinpointing movement, products like SpotterRF and Xandem provide wider coverage areas for less per-unit of area space cost than laser technologies.
It seems to me you would want to detect intruders, not blind them. Besides, land mines are more efficient.
We have used SICK laser products for demanding surveillance environments. Not cheap but very good quality and limited false alarms in harsh places like deck of the marine ship and so on.
I watch the movies, so I know, laser detection is easily defeated by a few mirrors and a couple C-stands.
I'm not sure they are useful for intrusion detection but they work great for extracting information from the intruders once you catch them.
IPVMU Certified | 12/04/13 02:49pm
If memory serves me correclty, that method still ultimatley failed.