26-07-2012, 12:12 PM
automated toll collection system
ABSTRACT
The paper is concerned with automated toll collection system using the active MIFARE CARD; vehicles are made to pass through a sensor system that is embedded on the highway just before the tollgate. The system will electronically classify the vehicle and calculate the exact amount to be paid by the vehicle owner, ensuring no pilferage of the toll amount. Vehicle owners, who frequently pass through tollgates, are required to have a prepaid smartcard, which will deduce the appropriate amount, by using an automated smart card reader. A Micro controller consists of a powerful CPU tightly coupled with memory RAM, ROM or EPROM), various I / O features such as Serial ports, Parallel Ports, Timer/Counters, Interrupt Controller, Data Acquisition interfaces-Analog to Digital Converter (ADC), Digital to Analog Converter (DAC), everything integrated onto a single Silicon Chip. The Microcontroller is connected with personal computer through RS232 data adapter.
The system of automatic identification vehicle is composed by on board unit, road side unit, loop sensor and other components. And the center control system is consisted of large database and the information of enrolled vehicles and users. When vehicle passes the toll station sensor apperceive the vehicle sends out the signal and the reader responds thus establishing two-way communication and data exchange. Center control system fetch the identify vehicle information like as car's ID and car's module and compare these information to the database. According to situation, it controls the center manager system do different operation. Such as computer charge manager system deducts these traveling expenses from his bank count or send instruct to other assistant establishment. That realizes automatism management to running vehicle. Other assistant establishment mainly closed camera system of breaking vehicle, control railings, traffic instructions to the traffic equipment.