Unmanned railway tracking and anti collision system using gsm

9,066 views

Published on

UNMANNED RAILWAY TRACKING AND ANTI-COLLISION SYSTEM USING GSM

Published in: Technology, Business
3 Comments
9 Likes
Statistics
Notes
No Downloads
Views
Total views
9,066
On SlideShare
0
From Embeds
0
Number of Embeds
8
Actions
Shares
0
Downloads
704
Comments
3
Likes
9
Embeds 0
No embeds

No notes for slide

Unmanned railway tracking and anti collision system using gsm

  1. 1. INTRODUCTIONEmbedded System is a combination ofhardware and software used to achieve a singletask. It is a computer system that monitorrespond to, or control an external environment.Environment are connected to systems throughsensors, actuators and other I/O interfaces.Embedded system must meet timing and otherconstraints imposed on it by environment
  2. 2. SYNOPSISThe project aims at designing Anti-Collision System andcontrolling unmanned Railway crossings. The anti-collisionsystem is implemented by fitting GPS receiver in each train.Each train will compare the GPS co-ordinates sent by theneighboring trains with its own GPS co-ordinate system. Whenthe difference between the trains coming in same GPS co-ordinate reaches minimum level, then both trains will stop.When the train reaches the spot where the IR sensors areplaced the close command for gate control system is activated.The received location will send form the server in the form ofGSM modem and the server will response the position of thetrain. The information will be send from the main server withthe location of the train. The control of unmanned railwaycrossing is implemented by placing display as well as alarmindicator in the train so that they can find the each trainlocation in the same track about few kilometers before thecrossing area.
  3. 3. MICROCONTROLLER The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer It has 4Kbytes of Flash programmable anderasable read only memory (PEROM). AT89C51 is a powerful microcomputerwhich providesa highly-flexible and cost-effective
  4. 4. PIN DIAGRAM
  5. 5. FEATURES • 128 x 8-bit Internal RAM • 32 Programmable I/O Lines • Two 16-bit Timer/Counters • Six Interrupt Sources • Programmable Serial Channel • Low-power Idle and Power-down Modes • Fully Static Operation: 0 Hz to 24 MHz
  6. 6. OBSTACLE SENSORModulated IR transmitterAmbient light protected IR receiver3 pin easy interface connectorsIndicator LEDUp to 12 inch range for white objectCan differentiate between dark and light colours
  7. 7. RELAYA relay is an electrical switch that opens and closesBy the control of another electrical circuit it works.The switch is operated by an electromagnet to openor close one or many sets of contacts.It can able to control an output circuit of higherpower than the input circuit.
  8. 8. RELAY DIAGRAM
  9. 9. RF TRANSMITTER &RECEIVER The transmitter/receiver (Tx/Rx) pair operates at a frequency of 434MHz An RF transmitter receives serial data and transmits it wirelesslythrough RF through its antenna The transmission occurs at the rate of 1Kbps - 10Kbps The transmitted data is received by an RF receiver operating at thesame frequency as that of the transmitter.
  10. 10. PIN DIAGRAM RF & TF
  11. 11. RS 232 Highly Reliable for 24x7 operation withSMPS power supply adapter / MatchedAntenna Status of Modem Indicated by LED Simple to Use & Low Cost Quad Band Modem supports all GSMoperator SIM cards
  12. 12. GSM MODEMIt is a specialized type of modem which accepts a SIMcardoperates over a subscription to a mobile operatorIt is used for sending and receiving SMS and MMSmessages.From the mobile operator perspective, a GSM modemlooks just like a mobile phone.
  13. 13. IR LEDAn IR LED, also known as IR transmitterIt is a special purpose LED that transmits infraredrays in the range of 760 nm wavelength.It is made of gallium arsenide or aluminium galliumarsenideIR receivers, are commonly used as sensors
  14. 14. PIN DIAGRAM OF IR LED
  15. 15. ENCODER 18 PIN DIP Operating Voltage : 2.4V ~ 12V Low Power and High Noice ImmunityCMOS Technology Low Standby Current and MinimumTransmission Word Built-in Oscillator needs only 5% Resistor Easy Interface with and RF or an Infraredtransmission medium
  16. 16. DECODER18 PIN DIP8 ~ 12 Address Pins and 0 ~ 4 Data PinsEasy Interface with an RF of IRtransmission mediumMinimal External ComponentsCapable of Decoding 12 bits of Information
  17. 17. ANTI COLLISION DEVICEThe Anti Collision Device is a form of Automatictrain protectionACDs have knowledge embedded intelligenceThey take inputs from GPS satellite system forposition updatesIt act as a watchdog in the dark as they constantlyremain in lookout for other train bound ACDs
  18. 18. SEND SMS USING AT COMMANDSSome advanced GSM modems like WaveCom andMultitech, support the SMS text modeThis mode allows you to send SMS messages using ATcommands, without the need to encode the binaryPDU field of the SMS first.This is done by the GSM modem
  19. 19. SENDING THE MESSAGETo send the SMS message, type the followingcommand:AT+CMGS="+31638740161" <ENTER>
  20. 20. SETTING UP THE MODEMIf the modem contains a SIM card with is secured with aPIN code, we have to enter this pin code first:AT+CPIN="0000" <ENTER>
  21. 21. CHECK YOUR GSM MODEM SUPPORTSMS TEXT MODETo check if your modem supports this text mode, youcan try the following command:AT+CMGF=1 <ENTER>
  22. 22. SCOPE FOR ADVANCEMENTTrain information is transmittedto next station and road traffic
  23. 23. USESUsed on unmanned railway crossing.Advanced train arrival information.Time duration setting.
  24. 24. ADVANTAGESPre information of train arrival.System placed within locomotive of thetrain.Accident avoidance.Safety and quality of service.
  25. 25. DISADVANTAGESCost is high.cannot work at power failure.

×