vehicle tracking system using gsm and gps
DESCRIPTION
It is not a fully descriptive presentation but, it can help you to survive in urgency. Schematic is copied. It's just a ppt.TRANSCRIPT
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REAL TIME VEHICLE TRACKING SYSTEMUsing GPS and GSM
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230 to 12 VStep Down Transformer
AT89S52µc
MAX232
GSM Modem GPS Modem
16x2 LCD Display
Relay
Block Diagram:
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Power Supply
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Transformer(12-0-12)V :i) Step
down ii) 0-9V
with 500mARectifier:
=> Bridge Rectifier => Bidirectional to unidirectional
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Voltage Regulator: 7805 for 5V constant DC
Filter: => Capacitor of 1000µF and 25/50V
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AT89S52 Microcontroller:
AT89S52
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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.
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GPS and GSM
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GPS
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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
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How it Works ?
Triangulation
Augmentation
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A GPS Signal contains three different bits of information
(1).Pseudo random code
(2).Ephemeris data
(3).Almanac data
THE SIGNAL
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BASIC CONCEPTS OF GPS Receivers require clear line-of-sight; thus, they will not work indoors or
where tall objects obscure the sky
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GSM
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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)
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Schematic Diagram
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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.
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Thank
You