Door Entry Systems
Door entry systems (also known as door access systems or door security systems) are those security installations which restrict the access through any door to only certain selected individuals. They form part of the greater scope of protecting a property against intruders and are therefore often combined with protective measures around windows, the perimeter and roofs.
Door Entry Systems
There are many kinds of door entry systems. From one to one intercom systems to complex biometric systems such as voice to text machines, a wide variety of security systems can be purchased nowadays, with a number of combination of features and levels of access. Keypad entry systems, for instance, allow access via the input of a secret code phrase or combination of numbers and characters into a keypad.
Intercom Systems
Intercom systems are frequently found in many kinds of situations. They are installed as one-to-one communication devices in domestic situations or as one-to-many announcement channels in malls or offices. They are quite simple technologies available either with cable or as wireless devices.
Video Entry Systems
More sophisticated versions have a built in video camera which allows one party, the one inside the building, to view a live picture of the situation outside. These versions are known as video entry systems, and are often installed where door entry security is taken more seriously by the owner of the building it is installed in.
For both these methods it is important that they are weather and vandal resistant. Using robust and strong materials is the clue to success in this case.
Biometric Systems
Probably the most modern and high-tech security solution is a biometric system. Biometric systems read and recognise physical traits, such as fingerprints, face and voice, which are unique to every human being. There is no way of confusing two people by their biometrical traits and as such, these systems are theoretically considered as infallibly secure.
Proximity Sensors
Any of these systems may be operated in conjunction with proximity sensors, a method of granting access to any given door entry system which is becoming more and more popular. These work by trusted users or employees carrying around an item like a card or key fob that transmits a faint signal: when the person approaches a proximity sensor the signal will be detected and the door will open. Such a system is especially appropriate in areas where vehicles may have to enter and leave buildings without the driver or any passengers getting out, for instance in a dangerous area.
Perimeter Security
When creating a secure environment for ones property it is important to also consider the security of one’s windows, roofs and perimeter. There are a number of ways in which these can be secured. Perimeters are best guarded by fences or video cameras. The fences can either be palisade or electrical ones. Palisade fences are stronger than most other kinds of fences and are fabricated mainly for industrial purposes. Electrical fences must be installed with greater caution as they could potentially inflict serious harm to the person who comes into contact with them. For this reason they are more frequently used to control animals on a farm or in a wild field.
Security Cameras
CCTV cameras too can be bought for any kind of purpose. They exist in subtle and small versions or as big, chunky, clearly visible systems. They record everything that goes on in the area they are pointed at which means that they are providing security and surveillance without interference.
Window Security
Windows are best safeguarded by shutters, bars or grilles. These are manufactured in exceptionally strong aluminium or steel, are usually built to size and are often fabricated in creative and intricate designs. Applying safety film is a far cheaper and virtually invisible alternative, though by far not as protective as other security measures.
Roof Security
Protecting roofs can be achieved through anti-climb paint, razor wire or wall spikes. Anti-climb paint is paint which stays sort of rubbery and slippery to the touch, making it hard to get a good grip on any surface painted with it. Razor wire and wall spikes are applied with the ambition of either scaring away potential intruders or harming them upon contact. They must be carefully installed with close attention paid to legal safety requirements.