Pir Based Smart Crossing System Using Iot

Abstract

The main aim of this project is to construct a movable railway platform above the tracks with same platform height. This helps the passengers to easily move from one platform to another platform. The proposed system is capable of identifying train arrival and departure and there by intelligent controlling the movable platform. The system also uses PIR sensor and LDR sensor for presence of human being detection, day or night light detection and controls the devices like lights and fans. The system sends alerts through Wi-Fi module to passenger mobile phone when the platform gets operated.

This project makes use of an onboard computer, which is commonly termed as microcontroller. It acts as heart of the project. This onboard computer can efficiently communicate with the sensors being used. The controller is provided with some internal memory to hold the code. This memory is used to dump some set of assembly instructions into the controller. And the functioning of the controller is dependent on these assembly instructions.

The main controlling device of the whole system is a microcontroller. IR sensors, DC motors, limit switches and buzzer are interfaced to the microcontroller. IR sensors input will help the microcontroller to assess the train arrival and departure conditions. When there is no train on the tracks, the microcontroller will move the dc motors to which movable platform setup is connected. The system sends alerts through Wi-Fi module to passenger mobile phone when the platform gets operated. So, a platform is made between two platforms for the passengers. When there is train arrival, the microcontroller alerts through buzzer and clears off the movable platform. Limit switches helps the microcontroller to assess the platform movement. The system detects any presence of human beings and controls the devices like lights. The system uses LDR sensor for day or night sunlight sensing and also controls the electrical devices like lights, fans etc using relay switches.