Vehicle tracking system using GSM and GPS
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Transcript of Vehicle tracking system using GSM and GPS
REAL TIME VEHICLE TRACKING SYSTEMUsing GPS and GSM
230 to 12 VStep Down Transformer
AT89S52µc
MAX232
GSM Modem GPS Modem
16x2 LCD Display
Relay
Block Diagram:
Power Supply
Transformer(12-0-12)V :i) Step
down ii) 0-9V
with 500mARectifier:
=> Bridge Rectifier => Bidirectional to unidirectional
Voltage Regulator: 7805 for 5V constant DC
Filter: => Capacitor of 1000µF and 25/50V
AT89S52 Microcontroller:
AT89S52
Features:o Compatibility with the MCS 51 familyo 8-bit CPU frequency up to 33MHz;o RAM: 256 Byteso Flash memory: 8K Byteso 3 timers / counters of 16 bits;o Two data pointerso 1 serial port (full duplex UART)o supports up to 10 000 rewriteso contains the oscillator;o Short programming time.
GPS and GSM
GPS
Þ To Find location by using Latitude and Longitude data
Why we use GPS ?
Features of GPS: 24 Satellites at different orbits
Revolve around Earth twice a day
For a 2D location, 3 GPS Satellites are used
For a 3D location, more than 3 Satellites are used
How it Works ?
Triangulation
Augmentation
A GPS Signal contains three different bits of information
(1).Pseudo random code
(2).Ephemeris data
(3).Almanac data
THE SIGNAL
BASIC CONCEPTS OF GPS Receivers require clear line-of-sight; thus, they will not work indoors or
where tall objects obscure the sky
GSM
IC MAX232:
• MAX232 IC is used to convert the TTL/CMOS logic levels to RS232 logic levels during serial communication of microcontrollers with PC
• The controller operates at TTL logic level (0-5V)
• whereas the serial communication in PC works on RS232 standards (-25 V to + 25V)
Schematic Diagram
APPLICATIONS: Stolen vehicle recovery . Field service management. It is used for food delivery and car rental companies.
ADVANTAGES: It provides more security than other system. From the remote place we can access the system.
Thank
You