railway security monitoring system using vibration sensor and zigbee
RAILWAY SECURITY MONITORING SYSTEM USING VIBRATION SENSOR AND ZIGBEEPROJECT GUIDE MRS.M.MANJUSHA PRESENTED BY, ARUNA.S.J ASWATHY.S ASWATHY.V.G
contents Introduction Existing system Focus on Components Block diagrams Descriptions Over all working Result and discussion Conclusion Reference
INTRODUCTION In the rapidly flourishing country like ours, accidents in rail road railings are increasing day by day. The train accidents cause severe damage to life and property This project deals with one of the efficient method to avoid train accidents.
Causes for railway accidents Human error. Track problems or adverse weather conditions. Derailment in curves and bends. Mis-signaling due to fog or mist. Collision between trains
Existing system Oral communication through telephonic and telegraphic conversations. IR sensors are also used to identify the cracks in the railway. LASER Proximity Detector Use of satellites for communication. No combined solution for collision avoidance,derailment and railway gate control
FOCUS ON•Train derailment in curves andbends•Collision between trains•Automatic railway gate control
BLOCK DIAGRAMS BASE STATION Power ZigBee Microcontroller (PIC 16f877a) Servo motor Vibration for gate sensor control
Circuit diagram BASE STATION SIDE TRAIN SIDE
BASE STATION SIDE Power supply section Regulator IC (LM 7805) Lithium ion battery Sensor section Vibration sensor Communication Zigbee transceiver section
TRAIN SIDE Power supply section Regulator IC (LM 7805) Lithium ion battery Communication ZigBee transceiver section Brake control section Transistor(TIP 122) Relay switch
Collision between trains Sensor sense the vibration. More than one sensor show high value. µc sends signal to µc in train side using zigbee transceiver . Power supply will cutoff. Collision can be avoided.
Train derailment in curves and bends Sensor sense continuously. µc doesn’t get value. µc sends signal to µc in train side Using zigbee transceiver section Power supply will cutoff Train will be stopped.
Automatic railway gate control Sensor sense vibration 3 km away. Output given to µc µc give instruction to close the gate Gate is closed automatically using servomotor. Gate is opened after the train is passing
Continued…. Automatic railway gate control START CHECK ANY DATA PRESENT IF DATA RXED NO FROM TRAIN YES GATE CLOSED
OVER ALL WORKINGThe proposed model makes use of ZigBee protocol as a medium oftransferring information
Result and Discussion•The sensors sense the input and sends to the microcontroller, where itresponds•Gives command to the particular component with predefinedalgorithm.•The time parameters are crucial which can be easily changed andmodified using Micro-controllers.•Thus, this device would work incoherence would help to reduce the train collisions.
CONCLUSION In this project, an anti-collision system for trains have been designed, simulated and tested. The simulation has been done using proteus electronic simulation package Train collisions , de railing & rail road accidents are avoided. Hence it is expected that, major train mishaps can be prevented and human life saved if this system is implemented.