Light Detection & Ranging on Mini IR Radar for Unauthorized Object Detection

Radar’s are used on airports as well as military bases for unauthorized object detection. Principal of echo detection is used in order to detect objects. In air the time required to receive the signal is used to measure the refection of the echo waves. This data helps to identify the object distance. Infrared technology is proposed to simulate this concept. IR sensors are mounted on our system which constantly rotated at 306 degrees. The radar constantly emits IR rays and measures reflection. On detecting reflection from any object within its range the radar stops and sends a signal. The angle of the detected object is also identified by the radar. A small IR transmitter receiver pair is used here. The pair is interfaced with microcontroller to control the circuit working. The microcontroller constantly receives the radar input. An alert message is sent to the microcontroller once an object is sensed. The microcontroller now gets the data and also gets the radar direction in order to get angle at which object was detected. With the help of more high tech sensors distance of the object can also be determined. One such sensor is LiDAR Lite 2.