Laser microphone for remote listening

novembre 18, 2010 Technology No Commenti

As we have seen in a recent article, law enforcement officers working on investigation activities do not always have the chance to come close to their suspects to gather information, install miniature cameras or bugs to eavesdrop on conversations and so forth, to avoid putting their own safety at risk, or jeopardizing the whole operation.

To avoid taking unnecessary risks, but still be able to intercept conversations that take place in a closed room, there are alternatives provided by modern surveillance technology, for example such as laser microphones.

A laser microphone, as the name suggests, uses an invisible laser beam that is pointed at a window glass, up to a maximum distance of more than a mile. This beam is able to “read” the vibrations of the glass itself, vibrations caused by sounds and voices coming from the room and behind the window.

The laser beam reflected on the glass, is subsequently picked up by a receiver located at the right angle to meet the reflection. The receiver, combined with a decoding system, is able to convert the laser pulses, as influenced by the vibrations on the glass, into sounds and voices, with great clarity of sound, so that you can listen to them in absolute security, and determine what happens behind that window.

The use of this technology by law enforcement has proved most useful in investigations on organized crime, and operators gave a positive feedback on it, mainly because it makes operating conditions much safer.
To learn more about laser microphones, you can visit the Endoacustica website and contact our experts in the field of video and audio surveillance.

Robot snake, kill it and it will multiply

novembre 18, 2010 Technology No Commenti

When we were kids, in the countryside, we all played with earthworms, amused at how killing them by cutting them in two would have no success, and it would actually end up creating two of them. Apparently, the Israeli military researchers seem to have been inspired by earthworms to create their snake robot.

In fact, if you try to neutralize it, by shooting or throwing a grenade, each one of the segments that make it up will become independent and continue to move on its own and do its job, just like some sort of high technology worm.

Each one of the small robots is equipped with a processor that serves as “brains“, an array of sensors, a motor and batteries to provide power. As long as the various segments are joined together, the robot can be used for example for climbing trees or walls, inspect pipes, underground tunnels (such as those used to smuggle weapons into the Gaza Strip), or otherwise to carry out missions in places difficult to reach with traditional video surveillance systems.

Each of its modules can be configured and programmed to perform different tasks, including planting a bugging device, collecting pictures or leaving a bomb. Should the snake be attacked, any explosion would result in the separation of each one of the individual modules, which would at that point carry out the missions for which they were individually programmed.

The standard version of the snake robot weighs about 6 kilograms, but the weight and length can be increased or decreased by simply adding or removing segments, depending on the mission you want to accomplish.
Currently, it has been presented at the Israeli Conference on Robotics, but it is still in its testing phase, and once completed, mass production will begin for use by the Israeli Defense Forces.


novembre: 2010
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Anti-drowning defender is an alarm device which combines anti-drowning and anti-loss alarm, and works effectively as an electronic safety device for protecting children or pets from drowning and loss.

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