A Computerised Gsm Based Vehicle Theft Control System

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  • Topic: Microcontroller, Mobile phone, Embedded system
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  • Published : May 1, 2013
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2.2 BLOCK DIAGRAM EXPLANATION:                     The project “GSM BASED VEHICLE THEFT CONTROL SYSTEM” deals with the design & development of a theft control system for automobiles which is being used to prevent / control the theft of a vehicle. The developed system makes use of an embedded system based on GSM technology. An interfacing mobile is also connected to the microcontroller, which is in turn, connected to the engine. Once, the vehicle is being stolen, the information is being used by the vehicle owner for further processing. The information is passed onto the central processing insurance system, where by sitting at a remote place, a particular number is dialed by them to the interfacing mobile that is with the hardware kit which is installed in the vehicle. By reading the signals received by the mobile, one can control the ignition of the engine; say to lock it or to stop the engine immediately. Again it will come to the normal condition only after entering a secured password. The owner of the vehicle & the centre processing system will know this secured password. We can modify this concept such that the vehicle owner also can lock the vehicle from his mobile phone.  The main concept in this design is introducing the mobile communications into the embedded system. With the help of SIM tracking knows the location of vehicle and informs to the local police or stops it from further movement.

GSM BASED DIGITAL NOTICE BOARD
INTRODUCTION
The user sends a SMS containing the data to be rolled.
PC receives the SMS and send it to both the slaves via RS232 -RS485 converter section. Both the slaves receive the frame. Then they match the slave ID in the frame to their own ID’s. If ID match occurs then that particular slave rolls the data on it’s alphanumeric display. GSM BASED DIGITAL NOTICE BOARD

BLOCK DIAGRAM
COMPONENTS USED
Microcontroller PIC( 16F877A).
RS 232 and 485 Transreceivers.
Octal Bus Transreceivers (74LS245).
Alphanumeric Display.
GSM Module.
3:8 Decoder.
SPECIFICATIONS OF COMPONENTS
PIC µC 16F877A
I\O ports: 5
Operating frequency: 20 MHz
Flash memory : 8Kb
EEPROM data memory: 256 bytes
Interrupt capability (up to 14 sources)
Serial communication:MSSP, USART
Parallel communication:PSP
Instruction Set:35 instructions
PIN DIAGRAM
RS 485
Long distance communication
Serial communication standard
Thermal shutdown protection
Allowing up to 32 transceivers on the bus
Supply voltage : 5V
DB-9 CONNECTORS
FEMALE CONNECTOR
MALE CONNECTOR
PIC µC WITH OCTAL BUS TRANSCEIVERS
PIC INTERFACE WITH RS 485
ALPHANUMERIC DISPLAY
1.5 “ Display.
5Volts operation.
Common anode mode.
100 mA current operation.
0.5W power consumption.
DISPLAY SELECTION 3:8 DECODER IC
DIGITAL NOTICE BOARD
GSM MODULE
Ultra small size.
Light weight (3.2 g). 
Easy to integrate.
Low power consumption.
Full RS232 on CMOS level with flow control
High performance on low price.
SOFTWARE OVERVIEW
Express PCB to draw PCB layout. 
Programming of PIC using ‘ASSEMBLY’ in
KEIL Software.
Programming at Base Station using Visual
Basic (VB-6.0).
VB INTERFACE WINDOW
PCB LAYOUT
ADVANTAGES
Easy to implement. 
More reliable.
Secured data transfer.
Can be used in places where human beings can not work.
Robust system.
High accuracy because of sensors and microcontroller.
APPLICATIONS

This system can be used in:
Cities, Malls, Theaters.
In Industrial Buildings.
In Remote and Rural Areas.
In Trains And Busses.
In Many Institutions For Information Purposes.
FUTURE ENHANCEMENT
Higher end controller can be used ARM-9.
Announciator system cab be added.
Increase the no. of slaves.
Use of satellite technology instead of GSM.
Access the data stored in dedicated PC.

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