Motion detection is a powerful tool for protecting your business or commercial building from intruders. However, it alarms you only when someone is already on your land that is not authorized. Knowing how such a technology helps you in configuring better security areas and triggers, however, don’t you know just how motion detection works to begin with? How do you get maximum benefits from the system? The answers to these questions may surprise you!
One of the most common types of motion detection used today is the infrared sensor. This detects light that bounces off objects and then analyzes the time and duration of the light wave. The sensor can be configured to emit lights at different times, all depending on the situation. For instance, if someone has triggered the alarm and is on the way to your office, the sensor can emit a bright light almost immediately so you will know there is movement in the area. In contrast, a motion detector with a fixed sensitivity can notify you only if the area is motion-free.
Another type of motion detection sensor is the passive infrared detector (PIR). This sensor works through an invisible heat signature emitted by objects. When the sensor detects the presence of something in the infrared spectrum, it will emits a signal so that it can be interpreted by the device. This type of sensor is usually installed inside buildings so that people entering them will trigger the alarm automatically, and may be used in conjunction with PIR or other passive infrared sensors.
There are also motion sensors available for use outside buildings such as fences and gates. Some of these sensors work on a motion detection protocol that uses a series of frequencies to determine when the sensor has sensed movement. Other types of motion sensors are able to sense magnetic disturbances like broken walls or doors, which is then triggered by the magnetic field of the fence or gate. The advantage of having this type of motion sensor outside your home is that it will make the security system more sensitive to irregular movements, which means less false alarms from people trying to enter your home without authorization.
Passive infrared motion sensors detect objects by using radio waves that have a slightly different frequency compared to the one that your TV sets and car radios use. By detecting changes in the amount of infrared waves emitted by an object, it can tell whether the object is stationary or moving. If the object moves, the wave emitted by the sensor will change slightly to match. This way, the device will know that movement has occurred and will either trigger an alarm or move on to another unknown source. On the other hand, a stationary object will never trigger the sensor because it has a stationary wave pattern that cannot be altered.
Of course, other types of motion detection sensors are available for use in your home security system. Infrared and acoustic wave detectors are perfect for areas such as doors and windows or even light switches. These two types of sensors are able to detect a wider range of frequencies compared to passive infrared sensors and are therefore ideal for a broader variety of home security applications. Therefore, if you’re looking for a way to enhance the security of your home or workplace, using one or several of these motion detection options should be considered.
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