Rochelle salt integrated PIR sensor arduino based intruder detection system (ABIDS)

In this paper, the Arduino based Intruder Detection System employing Rochelle Salt and Pyro-electric or Passive infrared (PIR) Sensor has been proposed. The proposed system employs Rochelle salt based sensor and PIR sensor supervised simultaneously by Arduino UNO. The Rochelle salt (Potassium Sodium Tartrate) exhibits piezoelectric properties in response to applied mechanical stress. The PIR sensor responds to Infrared (IR) radiating objects moving in its viewing range. The PIR detection is done by creating temporary electric potential whenever a change in IR radiations occurs within the viewing range of the sensor. The Rochelle salt and PIR sensor work independent of each other. The novelty of the system lies in its utilization of the Rochelle salt as sensing element for security purposes. The 20 grams of powder Rochelle salt is capable enough to generate 290mV. When the intruder enters the restricted area, the sensors sense the intruder and an alarm is triggered. In case, if one of the sensors stops working, it doesn't affect the working of the other sensor. The time variation of the buzzer helps in recognizing how far the intruder is from the restricted area.