hi i am diksha sirsat i would like get details on pdf on knock vibration activated alarm
i just want to study this expriment in details i need help

Security systems are designed for detecting the intrusion and unauthorized entry into the residential houses, commercial buildings, industries, and military surroundings. In our day-to-day life, security systems for home is a major concern to protect from burglary, property, and self defense from intruders. Generally, security systems for home can be designed using different technologies. Alarm security systems for home, alarm security system integrated with closed-circuit television surveillance, and so on. Different types of security systems for home can be designed using different types of sensors such as motion sensors, sound sensors, vibration sensors, and so on.

Security Systems for Home

Basically, security systems for home are designed using maximum number of sensors for the detection of intruders. Door knock vibration alarm home security system project is designed using an electrical transducer. The electrical transducer that converts vibration or pressure energy into electrical energy is called as piezoelectric transducer or piezoelectric sensor. The major parts of the home security system project with vibration alarm are piezoelectric sensor, transistors, diodes, IC 555 timer, buzzer or speaker or alarm, and other basic electrical and electronics components.