electronic toll collection system

Electronic Toll Collection (ETC) Electronic Toll Collection (ETC) SystemSystem

MD Arshad ShareefMD Arshad Shareef

Vaagdevi College of EngineeringVaagdevi College of Engineering

Contents

• What is ECT System?• Objectives of ETCS• Components of ETCS• RFID Tags • Types of RFID Tags• Reader• In Lane Computer• Schematic of ETC System• Working• Advantages• Conclusion

What is ETC System?

The Electronic Toll Collection (ETC) System is a new toll system designed to enhance convenience for drivers by enabling cashless toll collection and thus mitigating congestion at expressway tollgates. 

Objectives of ETC System

• Reduce longer waiting time in a toll queue• Provide traveler ease of toll payment• Reduce illegal toll gate entry

Components of ETC System

• RFID Tag• Reader• In Lane Computer

RFID Tags

• An RFID tag, or transponder, consists of a chip and an antenna. • The microchip contains memory and logic circuits to receive and send data back to the reader. • Each tag contains an identification number, data identifying the issuing agency, tag type, a description of thevehicle, and other agency-specific data.• The RFID Tag is mounted on windshield of vehicle.

RFID Tags – Basic Types

Active Tags• Tag transmits radio signal• Battery powered memory,

radio & circuitry• High Read Range (100

meters)

Passive Tags• Tag reflects radio signal

from reader• Reader powered• Shorter Read Range (10cm

– 5 meters)

Reader

• A reader contains an antenna to transmit and receive data from the tag. • The reader also contains a decoder and an RF module. It could be mounted or built as a portable handheld device.

In Lane Computer

• The In Lane Computer checks the data against a database of valid tags and active accounts, deducts the appropriate toll from the

customer’s account, and approves passage or raises a tollgate to allow the vehicle to pass through the toll plaza.

Schematic of ETC System

RFID Tag

Reader

Antenna

In Lane Computer

Transmits identification data to the RFID Reader

Coiled antenna ofreader creates magnetic field with coiled antenna of tag

Transmit data to Central Database

Associates tag info with complete info about owner, vehicle etc

Deducts appropriate amount from the customer’s prepaid account

Working

• As a vehicle approaches a toll plaza, the radio-frequency (RF) field emitted from the antenna activates the transponder.• The transponder broadcasts a signal back to the lane antenna with some basic information.That information is transferred from the lane antenna to the central database.• If the account is in good standing, a toll is deducted from the driver's prepaid account.• If the toll lane has a gate, the gate opens.• A green light indicates that the driver can proceed.

Working

Advantages

• Entire process takes a matter of seconds to complete.

• Electronic system records transaction, including the time, date, plaza and toll charge of each vehicle.

• Allow drivers to pass through the system at 55 miles per hour (86 kmph).

Conclusion

By application of ATCS into real time we can avoid malfunctions, time maintenance system and long wait at toll gates can be improved