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Posts Tagged ‘alarm system monitoring’

Home Security System will be in the United States used, people know what Burglar alarms are and what they are used. However, they can not know how they work. Let? S to see how this protection system works in detail.

Circuit

Home security systems are a simple electrical circuit. To open or close a light, just throw a switch. In an alarm system is it? S the same, only the switch detects the movements of the intruder, such as opening a door or a window.

Two categories

In a closed system, the circuit is closed when the door is closed. This means that until the door is closed, can flow stream from one end of the chain to another. But if someone opens the door, open the circuit and current can not flow. This triggers an alarm.

In an open circulatory system, opening the door closes the circuit, so electricity begins to flow. In this system, the alarm is activated when the circuit is.

Magnetic
A magnetic sensor in a closed circuit composed of simple elements.

- A circuit of the battery
- A metal spring in a door frame integrated switch
- A magnet is embedded in the door, aligned with the switch
- A sound separately driven by a motor relay.

Check box

The box is connected to one or more alarm circuits, but it also has its own power. Once the alarm is activated, the field is not to stop until someone in a security code on a keypad. In most installations check box is kept in one shot, so the thief can not even think to turn off the alarm.