DESIGN OF A GPS

DESIGN OF A GPS/GSM BASED TRACKER FOR THE LOCATION OF STOLEN ITEMS AND

KIDNAPPED OR MISSING PERSONS

GUIDE: Mr.K.R.Radha KrishnanI. G.Uday Kiran [09L223]II. N.Nithesh Chakravarthi[09L242]III. N.Sai Deep[09L251]IV. P.Pranay Krishna[09l246]

NEED FOR THIS PROJECT

• The high rate of kidnapping is fuelled by the inability of security agencies to quickly identify the location of the kidnapped persons

• The increasing rate of kidnapping of persons and vehicle snatching demands the technological assistance to counter them

• Thus , there is now a need for the use of technology based location finders with high precision and very high response time in the recovery of the stolen vehicles and/or the kidnapped persons

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HARDWARE DESCRIPTION

This system combines• The position location capabilities of the GPS to identify the

current location of the kidnapped person or stolen items.• The microcontroller is the brain of the system. It accesses the

memory location data from the GPS module. It then sends the location information to a predefined phone

number through GSM module.

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• GSM modem under the control of the Microcontroller transmits location upon the receipt of a location request SMS. The mobile phone receives location information in latitude and

longitude format

• An application which is preinstalled in the mobile phone which receives location information This application shows the target location by plotting the latitude

and longitude in the maps

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BLOCK DIAGRAM

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Microcontroller

GPS module Power supply

Display device

GSM module

External storage memory

• ARDUINO LEONARDO as microcontroller

• SKYTRAQ GPS 634R as Gps receiver

• SIM900 as Gsm module

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Google MAPS APIGoogle Maps API for Android.        For applications using Google Map Views

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InterruptsLocation Request Interrupt Low Signal strength Interrupt

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Check for msg

Y/N

Send loc info to mob

stop

Read gsm signalstrength

< T

Send LSA and loc info

stop

No

Yes

No

Yes

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GPS + microcontroller => Module 1

GSM integration to the Module 1=> Module 2

Android app integration to the Module 2 => Module 3

TIMELINE OF WORK PROGRESS

GPS Module

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• 65 channels to acquire and track satellites simultaneously• Tracking sensitivity reaches -161 dBm• Integral LNA with low power control• SBAS (WAAS/EGNOS) capable• Cold start 29 sec under clear Sky• Hot start 1 sec under clear Sky• Accuracy 5m CEP• Operable at 3.6V-6V• Both of RS232 and UART interface at CMOS level• 6 pins wafer connector

GSM Module• Quad-Band GSM/GPRS 850/ 900/ 1800/ 1900 MHz• 3V3 or 5V interface for direct communication with MCU kit• Configurable baud rate• SMA connector with GSM L Type Antenna.• Built in SIM Card holder.• Built in Network Status LED• Inbuilt Powerful TCP/IP protocol stack for internet data transfer over

GPRS.• Normal operation temperature: -20 °C to +55 °C• Input Voltage: 5V-12V DC07/04/2023 PSG COLLEGE OF TECHNOLOGY 11

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ARDUINO LEONARDOMicrocontroller ATmega32u4

Operating Voltage 5V

Input Voltage (recommended) 7-12V

Input Voltage (limits) 6-20V

Digital I/O Pins 20

PWM Channels 7

Analog Input Channels 12

DC Current per I/O Pin 40 mA

DC Current for 3.3V Pin 50 mA

Flash Memory 32 KB (ATmega32u4) of which 4 KB used by bootloader

SRAM 2.5 KB (ATmega32u4)

EEPROM 1 KB (ATmega32u4)

Clock Speed 16 MHz

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BIBLOGRAPHY• DESIGN OF A GPS/GSM BASED TRACKER FOR THE LOCATION OF STOLEN ITEMS

AND KIDNAPPED OR MISSING PERSONS IN NIGERIA., ISSN 1819-6608 ,ARPN Journal of Engineering and Applied Sciences

• GSM AND GPS BASED VEHICLE LOCATION AND TRACKING SYSTEM., ISSN: 2248-9622,www.ijera.com

• NMEA Data - http://www.gpsinformation.org/dale/nmea.html• Arduino info - http://www.arduino.cc/• Arduino tutorials - http://www.ladyada.net/learn/arduino/