This document proposes using RFID technology to detect traffic levels before busy signals and divert traffic. It involves using an RFID reader module and tags to detect vehicle levels 500m before signals. This information would be sent to a microcontroller and displayed on vehicle LCDs to advise alternate routes in real-time. The system aims to reduce traffic and prevent vehicles from being stuck at busy signals. It discusses the hardware and software requirements including an ARM7 microcontroller, RFID modules, sensors and Embedded C programming. The technology has applications in traffic management and is presented as a low-cost intelligent transport solution.

1. AN ADVANCE APPROACH TO DIVERT
THE TRAFFIC AT BUSY SIGNALS
GUIDED UNDER
B.VARUN
B.Aruna(11f21a0406)
C.Dada kalandar(11f21a0418)
A.Manjula(11f21a0443)
G.Prakash(11f21ao465)
b.aruna94@gmail.com
c.kalandar786@gmail.com
manjulanaidu520@gmail.com
Prakashgowd0555@gmail.com

2. Abstract:
The solution has been provided for the problems encountered at BUSY
Traffic signals using RFID technology.The software has been handled
for controlling, the traffic.
Radio-frequency identification is an automatic identification method
wherein the data stored on RFID tags or transponders is remotely
retrieved.RFID tag is a device that can be attached to or incorporated
into a product, animal or person for identification and tracking using
radio waves. Some tags can be read from several meters away, beyond
the line of sight of the reader. RFID technology can be used in vehicle
parking systems of malls and buildings.
The system normally consists of a microcontroller, RFID Reader
Module, display board and RFID tags.
The power supply consists of a step down transformer 230/12V, which
steps down the voltage to 12V AC. This is converted to DC using a Bridge
rectifier and it is then regulated to +5V using a voltage regulator 7805
which is required for the operation of the microcontroller and other
components.

3. INTRODUCTION:
 In cities most of the vehicleS struck under the traffic by
this they doesn’t went to their works properly for that
purpose an advanced approach is required to detect
the strength of the traffic before 500 mts.
 By using RFID Technology we can detect the strength
of the traffic and it is displayed on the lcd in a vehicle.
 RFID Radio Frequency Identification technology has
become one of the leading technologies in the modern
world of communications with its utility in many areas
of industry.
 Any obstacle can be their infront of the vehicle sensors
in the vehicle can detect the obstacle and displayed on
the LCD display.

4. BLOCK DIAGRAM
Block diagram :
+
ARM-7
LPC2148
M
OBSTACLE AVOIDANCE SENSOR
POWER SUPPLY
CRYSTAL OSC
OSCILLATOR
RFID READER
MODULE
MODULE
MOTOR DRIVER
16X2 LCD
RESET

5. REQUIREMENTS
 HARDWARE REQUIREMENTS:
 Microcontroller(ARM-7 LPC2148)
 Crystal oscillator
 Motor Driver
 DC Motors
 LCD(16*2)
 RFID Module(Radio Frequency Identification Module)
 SOFTWARE REQUIREMNTS:
 Keil Compiler
 Proteus
 Flash magic (or) prog isp
 Languages: Embedded C or Assembly

6. ARM-7LPC2148:
• The ARM7TDMI core is a 32-bit embedded RISC processor delivered as
a hard macro cell optimized to provide the best combination of
performance, power and area characteristics.
•The LPC2148 microcontrollers are based on a 32 bit ARM7TDMI-S
CPU with real-time emulation and embedded trace support, that
combines the microcontroller with embedded high speed flash
memory of 512 kB.
• A 128-bit wide memory interface and a unique accelerator
architecture enable 32-bit code execution at the maximum clock rate.
• ARM stands for Advanced RISC machine. The first processor in
ARM family was developed at Acorn Computers Ltd between
October 1983 and April 1985.
• The ARM core uses RISC architecture. Its design philosophy is
aimed at delivering simple but powerful instructions that execute
within a single cycle at a high clock speed.

7. ARM-7TDMI Features:
 32/16-bit RISC architecture (ARM v4T)
 32-bit ARM instruction set for maximum performance and
flexibility
 16-bit Thumb instruction set for increased code density
 Unified bus interface, 32-bit data bus carries both
instructions and data
 Three-stage pipeline
 32-bit ALU
 Very small die size and low power consumption
 Fully static operation
 Coprocessor interface

8. PIN DIAGRAM OF LPC2148:

9. Features of LPC2148 Microcontroller :-
•16/32-bit ARM7TDMI-S microcontroller in a tiny LQFP64 package.
•8 to 40kB of on-chip static RAM and 32 to 512KB of on-chip flash program
memory.
• 128 bit wide interface/accelerator enables high speed 60 MHz operation.
•Single 10-bit D/A converter provides variable analog output.
•Two 32-bit timers/external event counters (with four capture and four
compare channels each), PWM unit (six outputs) and watchdog.
•One or two (LPC2141/2 vs. LPC2144/6/8) 10-bit A/D converters provide a
total of 6/14 analog inputs, with conversion times as low as 2.44 μs per
channel.
•Low power real-time clock with independent power and dedicated 32 kHz
clock input.
•Power saving modes include Idle and Power-down.

10. Software:
EMBEDDED C
 Embedded C is nothing but a subset of C language which is
compatible with certain microcontrollers.
 Some features are added using header files like <avr/io.h>,
<util/delay.h>.
 scanf() and printf() are removed as the inputs are scanned from
the sensors and outputs are given to the ports.
 Control structures remain the same like if-statement, for loop,
do-while etc.
 Keil compiler and proteous software are going to be used.

11. ADVANTAGES:
•Gathering information through wireless technologies
•Highly useful in traffic clearance and avoiding accidents
•Can be used in ambulances
•Accessible through world wide
APPLICATIONS:
•Commercial applications
•Industrial applications
•Bio-Medical applications
•Wild Life monitoring and research

12. FUTURE SCOPE
 The future implementation of this system can be done
through GSM (Global System for Mobile Communication)
where communication media can be cellular.
CONCLUSION
•This project is a standalone intelligent transport system using
RFID technology.
• From the above discussion and information of this system, it can be
concluded that it is highly reliable, effective and economical in urban, semi
urban and also dense traffic areas.
•Though it is not possible to install such system in all available vehicles, it
certainly provides benefit to us and thereby to our nation.

13. Thank
you