Since ancient times, people have sought to protect their homes. And the more developed the civilization, the more sophisticated the methods and adaptations for this purpose. To monitor any activity in the protected area, a motion sensor for signaling is currently used, which is linked to other control elements.
How do the tracking devices function?
The motion sensor is most often connected with the burglar alarm, and due to its operation, the console receives a signal about movement in the area of the device's operation. It reacts not to any rustle, as it may seem to an ignorant person. The fact is that a super sensitive infrared sensor is mounted in the device, which reacts delicately to the body temperature of large warm-blooded individuals, whose body temperature is higher than the ambient temperature at a given time.
They include a person, although too sensitive instruments (not rough) can react to animals, gusts of wind, directed air stream or a loud sharp sound. Change of this parameter is possible due to the internal adjusting element.
It is due to this reaction (heat detection) that there is a short circuit in the circuit and an acoustic or mechanical alarm with a motion sensor is triggered. In the first case, the control panel receives a sound signal indicating the penetration of an unauthorized person into the guarded premises. In the second case, the camcorder turns on from the device operation, and the picture goes to the control panel.
If for some time, which is set individually, the fixed object does not move, or moves very slowly, the sensor ceases to catch it.
What are motion sensors?
Street traffic sensor for signaling - the most common version of equipment for the protection of the territory. There is no difference whether there is due to a small patio or impressive square meters of protected area.
Sensors designed to work in extreme (outdoor) conditions are wireless, capable of long-time fueled by batteries. They have a durable plastic housing that is unaffected by rain, destroying the effects of frost and heat, and is also protected from the ingress of dust. As a rule, such devices are able to transmit a clear signal for a distance of 100 to 300 meters.
Also, the alarm system with a motion sensor can be used for residential and utility rooms - a garage , gazebo , hoz.dvora, and others. These devices are good in that they have an excellent built-in sound indicator capable of turning on a powerful siren if they detect unauthorized movement and will not be turned off with the remote control for 1 minute.
But the motion sensor for signaling inside the dwelling is chosen with weaker parameters, including the sound effect, since in a closed space there is no need for such a sharp and loud sound to attract the attention of the owner.
The main function of such a sensor will be the inclusion of internal cameras for video surveillance. You can view the picture from them either online via the Internet from any mobile device or in the recording, if the camera is equipped with the necessary function.
The cost of such a sensor is small, and for a small room it will be enough to have one unit. If there is a need to install such equipment in a non-standard layout room, or in a large room, on a flight of stairs, then several sensors are installed at once. Thus, they cross over in the zone of action, so as not to miss an attacker.