burglar alarm

Go through this burglar alarm circuit which explains complete working of the burglar alarm project. you can draw the block diagram easily by yourself.

Burglar alarms have become standard equipment in stores and other businesses, and they're becoming increasingly common in private homes as well. If you've ever shopped for a home security system, then you know there are a wide variety of options available. These systems range from do-it-yourself kits you can pick up for $10 to sophisticated whole-house security networks that must be installed by professionals. But, as it turns out, most alarm systems are actually built around the same basic design concepts.

In this article, we'll take a look at these concepts and examine a few specific alarm designs. As you'll see, some of the most effective alarm systems are also the simplest.­

There are so many articles on Circuit digest on this.You can follow this link

https://circuitdigest.com/electronic-circuits/ir-security-alarm-circuit

An automatic device for giving an alarm when a window, door, safe, Burglar alarms are networks of integrated electronic devices working together with a central control panel (Brain) to protect against thefts and other possible illegal entries, as well home intruders. We can find many name for the burglar alarm, and the most basic definition of security system is found in its name. From its literally means is something secured through a system of inter-working components and devices.

Monitoring the potential intrusion entry points with sensors that communicate with a control panel, transmitting alarm signal when detecting the illegal intrusion, that’s the basic concept of theory of alarm systems.

The sensors are typically installed in doors and windows that expose to potential intrusions or easily accessible places to form invisible perimeter protection. Motion sensors are installed interior for open spaces protection.