ARM23

COMBINED SCHEDULING OF GPS SIGNALS IN A GSM BASED GUIDANCE SYSTEM

J. Aarti et al. Int. Journal of Engineering Research and Application

Vol. 3, Issue 5, Sep-Oct 2013, pp.465-468

J. Aarti*, B. Premlatha**, S. Krishnaveni***

TECHNICAL SPECIFICATIONS:

Title of the project:Combined Scheduling Of Gps Signals in a Gsm

Based Guidance System

Domain:Embedded Systems Design

Software:Embedded C, Keil, Proload

Software:Embedded C, Keil, Proload

Microcontroller:LPC2148 controller

Power Supply:+9V,

Display: LCD HD44780 16-character, 2-line (16X2)

IR Pair:(Tx,Rx)

GSM:2

GPS:1

Crystal:12MHz

Applications:Transportation

Developed By:M/S Wine Yard Technologies

Abstract:

Now-a-days buses are major sources of traveling for every one. In several bus stations many people are waiting for buses. Due to traffic buses may not come to their destinations at exact time. It is the major problem for every one.

In this present scenario, we are designing a GPS-GSM based system which identifies the location of bus exactly at which station it has started recently. For this purpose, here we are using GSM-GPS connected to the bus and GSM connected at different stations.This project implements a solution for enhancing public transportation management services based on GPS and GSM.The system consists of IN-Bus module which is equipped with GSM, GPS modules and Base station module which is equipped with GSM module.

This project is designed with ARM7TDMI processor. In this project we are using different modules such as LPC2148, GSM, GPS, IRpair, 16X2 LCD. The project is implemented by using two modules Base station module and In-Bus module. The In-Bus modules consists of IR pair to count the number of persons in the bus and to find out the exact location of bus we are using GPS and the information can be obtained as a message by using a GSM module.

The LPC2148 are based on a 16/32 bit ARM7TDMI-S™ CPU with real-time emulation and embedded trace support, together with 128/512 kilobytes of embedded high speed flash memory. A 128-bit wide memory interface and unique accelerator architecture enable 32-bit code execution at maximum clock rate. For critical code size applications, the alternative 16-bit Thumb Mode reduces code by more than 30% with minimal performance penalty. With their compact 64 pin package, low power consumption, various 32-bit timers, 4- channel 10-bit ADC, USB PORT,PWM channels and 46 GPIO lines with up to 9 external interrupt pins these microcontrollers are particularly suitable for industrial control, medical systems, access control and point-of-sale. With a wide range of serial communications interfaces, they are also very well suited for communication gateways, protocol converters and embedded soft modems as well as many other general-purpose applications.

This project uses two power supplies, one is regulated 5V for modules and other one is 3.3V for LPC2148. 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac out put of secondary of 230/12V step down transformer.

Block Diagram: Bus Station Module

Block Diagram: IN-Bus Module

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