Evidence of domestic violence can be collected by means of a CCTV system, installing a camera inside the victims’ homes. A similar type of surveillance is used inside hospitals in cases of supposedly abused children, in order to monitor their parents’ activities and behavior.

In the early stages, CCTV security systems were used to decrease crime rate such as burglaries or car thefts. More recently, CCTV systems pick up on more minor offenses such as urinating in public, drunkenness, traffic violation. Those who evade the meters in a parking lot can also be caught on camera. Underage smoking, sexual or racial harassment, drug use, all of these crimes are the subject of CCTV system monitoring. Public order is now more likely to be kept with the use of CCTV security systems, which have become the solution to the serious problem that is urban dysfunction. But the police are not the only promoters of security through CCTV systems. Politicians also encourage installation of such systems in order to control crime.

The CCTV system also has its opponents, but whenever these critics speak up, people who are frightened by crime consider them to be nothing but enemies of everyone’s best interest.

As far as the technology used in a CCTV system goes, it suffices to say that some of these systems can be very sophisticated. They can be assisted by a computer, can detect motion, can have night vision and images of excellent clarity. Another amazing thing about the cameras on a CCTV security system is that they can focus on a single object from a crowded environment and follow that one object. They provide high definition images from which faces can be recognized. The time needed for a system to identify one face out of several thousands is less than a second. The system is mostly used in airports where terrorists may enter a country.

Since the CCTV cameras have often become targets of attacks, more and more of them now have a casing which is bullet proof, or are covered by other cameras installed nearby.

The question still remains whether CCTV security systems reduce crime. The answer is that they are most likely to prevent it. Those in favor of such surveillance systems have at least one argument. CCTV systems reduce the number of the so-called opportunistic crimes, that is the crimes committed when people decide to take advantage of a certain situation. In the same way, crimes in parking lots have reportedly dropped by almost ninety percent.

The conclusion is that, although CCTV security systems may not be as efficient as their supporters portray them, at least they appeal to common people, who now feel much safer when going shopping, for instance.

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To understand why you need infrared you need to understand how a infrared camera works. Infrared cameras display an image using infrared radiation. An infrared camera has infrared illuminators around the outside of the lens of the camera. These infrared illuminators allow the camera to see images when there is no light at all. With just a little bit of light an infrared camera can produce an image that looks like daytime but in the dark.

Infrared cameras are sometimes confused with night vision cameras but they are not night vision cameras at all. Maybe you have seen a military movie where they are using night vision goggles, they usually view the dark in a green color. This is typically what night vision cameras are viewed in. Infrared cameras are usually viewed in black and white. Some cameras can actually see color during the day but automatically switch to black and white at night.

Also wireless infrared cameras don’t use any wires so it can be placed inside and outside very easily, without being seen. Hiding a camera inside or outside so people do not know that it is there is an advantage over the perpetrator that you are trying to keep out of your house. You also don’t need to run special wiring on the outside of your house when installing an wireless infrared camera.

These cameras are much better then cameras that can only see during the day. Really if you think about it you need a wireless infrared security system because you are protecting you and your family mainly at night. That is usually when break ins occur. At night time it is also hard to see who is at your door and who is lurking outside on the street under the cover of darkness.

Wireless infrared home security systems are very popular today because they can be used in very little lighting, as well as they are fairly inexpensive and can be used both inside and outside. If you are a homeowner and are looking into purchasing a security system for your home consider a wireless infrared camera to protect yourself from intruders as well as other emergencies.

The device operates standard off the shelf batteries, do not rely on the rechargeable batteries and is used in any kind of weather conditions with the help of which we can understand that the device is harsh enough to be used in rugged conditions too and can withstand the harsh conditions and weather. Very affordable and it comes in multiple configurations for diverse applications such as tactical hand held mini thermal imaging viewing or precise thermal FLIR weapon sight scope. It is specially designed to meet the user’s specific and critical requirements. The camera also has a floating reticule which compensates for any environmental conditions, as well as numeric target temperature measurement for calibrated thermal imaging.

Author- 7bInfrared Products The company is into thermal Infrared products and night vision equipment like night vision goggle, night vision binocular.infrared camera.

PT-4000-B thermal imaging FLIR PAN TILT infrared imager

PT-4000-B thermal imaging system is a vehicle or fixed mounted thermal imaging FLIR system. This device is used mainly in the military conditions, which shows us how tough this device can be withstanding such rough conditions. The 360 is available in a wide range of COTS configurations including mobile, pan-tilt-zoom and fixed mount scenarios. It short, medium and long range thermal imager FLIR capabilities. This device is used in force protection, thermo-vision flash imaging sight scope border patrol, and any critical fixed or mobile night vision surveillance and acquisition. The dimensions of this device are 11″W x 9″H x 9″D (w/Pan and Tilt), it weighs <10 lbs (w/Pan and Tilt) and the operating voltage is 9 VDC to 16 VDC, 12 VDC nominal. The operating temperature is 40°C to 55°C, filed of view is 12° to 9°, it has an automatic brightness and contrast, and the infrared polarity is white-hot. The detector range of the device is 60 seconds. The pan function is 360° continuous, joystick controlled. The tilt function is joy stick controlled and is -16° to 40° from horizontal. The position feedback of the device is given by the graphic indication on the motor. The video output is given by EIA RS-170.

This device has top mounted buttons which offer instant FLIR imaging polarity change, digital thermal zoom and 8 step brightness or contrast features. The T14 attaches to the standard US military AN/PVS7 and AN/PVS14 helmet mounts or head mounts. It can also be used a compact thermal infrared viewer & a thermal weapon sight. This device has got the world’s first COTS thermal infrared imaging goggle, weapon sight & compact viewer. The device is easy to understand and will not give you a chance to complain about being complicated.

The multi thermal images can be used in many ways such as

• Hand-held thermal infrared viewer.

• Compact and precise thermal weapon sight.

• Hands free head mounted thermal goggle.

The hybrid focal plane array technology with coated milspec germanium optic, rugged housing and hardened and the best accuracy makes the device a must have. The sensor has 7-14 micron Uncooled amorphous silicon micro bolometer. The size of the device is length – 10.3cm, width – 8.5cm, and height – 5.0 cm. the weight of the device with the head strap is 550 Gms. +2 to -6 diopter is used as an eye piece. The field of view is 17 degrees * 12 degrees. Thermal sensitivity of the device is <100 mK. The resolution is 320*240 with 2D interpolation.

The equipment included is head strap, manual, eyecup, demist shield, and lens cover. This device is the most versatile weapon in thermal IR systems available. This device can also be used as a hands free goggle system, and also senses heat. The weapon mount is a base mount quick attach feature and bullet drop compensator where as the helmet mount is used in the military night vision flip-up type helmet mounting system. The head gear that is the standard PVS -7 night vision goggle head mount with three brow pads.