Motion Detectors - Prevent Crime

Motion detectors are one of the most basic and simple-to-use security devices. There are various types available, including the indoor motion detector, the (waterproof) outdoor motion detector and the motion detector camera. The motion detector camera is an excellent piece of security equipment: it continuously records all movement within its range and if something untoward were to occur in the range of the motion detector camera, it would be recorded-providing excellent potential evidence.


Outdoor motion detectors are ideal for large areas outside, such as the yard or garden, or for any outside area surrounding a place of business. Outdoor motion detectors are ideal for keeping intruders away from any property, but particularly business premises. It is imperative that the outdoor motion detector camera is attached to another security device (such as an alarm) so that if intruders do access your property, attention is drawn and the appropriate authorities are notified. Both outdoor and indoor motion detectors can be incorporated as part of manned surveillance if you have this on your premises. If you do not have manned surveillance on your premises and only have a motion detector camera, your indoor and outdoor motion detectors should be wired into a central security system. Then, if someone were to activate one of the motion detectors, an alarm would sound, scaring the intruder away and notifying the police.

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Intercoms

Shortly after Alexander Graham Bell’s first telephones became well known, people used the principles behind his invention to create basic intercom systems. An intercom is defined as a personal device that permits the exchange of verbal messages between two or more locations, in places where standard communication would be difficult or impossible. But even before the advent of the telephone, there were devices in use that were similar to the modern intercom. They were common in large offices, on ships and in military installations. Residential estates and manor homes also used these gadgets to relay instructions to workers or servants who were out of earshot. More than just a system of ropes and bells, they were called “speaking tubes” and consisted of hollow metal pipes, which conducted sound for long distance. We can observe this phenomena even today when visiting old buildings heated by water pipes that tend to conduct every sound from room to room whether desired or not.

A favorite toy of children constructed by connecting two cups together with a length of string can also be considered a type of intercom, as can the telegraph. Both of these devices form a closed rather than open system of communication. Of course modern intercoms have taken the concept to a whole new height, and the new wireless systems have provided an entirely different level of sophistication.

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Access Control System

It has been a constant challenge to design a method that allows people to come and go as needed without the entrance point becoming a fatal weakness in the overall structure. In modern times we no longer need to rely on flawed human guards or crude mechanical means such as locks and keys to control the access to our homes, businesses and cars. Keyed entry systems have always been subject to those who would duplicate or steal the key in order to gain entrance, producing an obvious weakness. Furthermore, a lock that is intended to be opened through physical manipulation is vulnerable by its very nature. Locks can be “picked,” broken or forced by those determined to enter with or without permission.

Today, lock and key systems have been replaced by keyless entry methods such as biometrics. The term biometrics comes from the Greek words “bios” meaning life and “metron” meaning measurement. It is the science of confirming a person’s identity through the analysis of the individual’s unique physical or behavioral traits. When used for access control, biometric systems take several forms including fingerprint-readers and voice and retina-recognition systems. Great advances made in the field of access control, and the peace of mind that new methods can provide.

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