Railway Track Pedestrain Crossing

without using Staircase

Need:

In Railway stations normally we use bridges to go to the

other platforms. Sometimes it is very difficult for the elderly

persons or handicapped persons to use that bridge. Our

project finds a solution to this problem.

Proposed Idea:

This project is used for automatically close/open the mobile

platforms inbetween the train tracks. Normally the mobile

platform connects the two platforms, through which the

passengers can walk on the platform to reach the next

platform. when the train comes. Sensors are placed in the two

sides of the track. If the train reaches one sensor, the mobile

platform will automatically close and allows the train to go

through the tracks and then when the train leaves the second

sensor the mobile platform will automatically open bridging

the 2 platforms. The Microcontroller will sense the presence of

trains by using Infrared red sensors. So on sensing the train

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on one path, the controller will give pulses to the stepper

motor to close the mobile platform automatically.

The mobile platform has a red/green Signal indication so

that the pedestrians can know whether they can use the

bridge or not. The signal automatically turns to red when the

train comes and becomes green when the train leaves the

station.

For demonstration we can have a model decipting this

action. The Controller which we are going to use is PIC 16f877.

89 RANGARAJAPURAM MAIN ROAD,KODAMBAKKAM,CHENNAI-24PL VISIT www.maastechindia.com,mobile:098402 34766

BLOCK DIAGRAM

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PIC Microcontroller 16F877

MODEL

IR Sensor To Detect Train

Stepper Driver Power Supply

Sensor Inputs – Digital Signal Convertor Ckt

Stepper Motor

Mobile Platform

Platform 1

Platform 2

LED Indication

Hardware

1. Infrared Sensors

2. Stepper motors

3. Interfacing unit

4. PIC 16F877 Microcontroller

5. Stepper motor Driver unit

6. Power Supply unit

Software

1. MPLAB IDE

2. Hitech C Cross compiler

89 RANGARAJAPURAM MAIN ROAD,KODAMBAKKAM,CHENNAI-24PL VISIT www.maastechindia.com,mobile:098402 34766