휴대폰을 이용한 자동요금징수 시스템의 인터페이스 모듈 설계 및 구현

Abstract

As cars are getting popular, the heavy traffic causes serious problems like air pollution and car accident. Especially, present tollgate system forces to stop the cars in front of toll booth to pay toll fees, and makes the heavy traffic go from bad to worse. Therefore the advanced countries have been preparing for the Intelligent Transport System(ITS) since 1990s.

ITS represent the next step in the evolution of the nation's entire transportation system. As information technologies and advances in electronics continue to revolutionize all aspects of our modern-day world, from our homes and offices to our schools and even our recreation, they are also being applied to our transportation network. These technologies include the latest in computers, electronics, communications and safety systems.

The ITS system consists of 5 sections - Advanced Traffic Management System(ATMS), Advanced Public Transportation System(APTS), Commercial Vehicle Operations(CVO), Advanced Vehicle and Highway System(AVHS) and Advanced Travel Information System(ATIS), and the Electronic Toll Collection(ETC) service is a part of the ATMS. Using the ETC Service it can make possible to charge a vehicle for driving pass a specific toll booth electronically, without the vehicle even having to slow down.

Current ETC system consists of the Road Side Equipment(RSE), the On Board Equipment(OBE), the smart card and the card reader. The smart card and card reader used to collect toll fees electronically have a serious problem which it dose not have a standard for the ETC system.

Therefore, in this thesis, instead of existing system the ETC system using mobile phone is designed and implemented to collect toll fees efficiently, which includes the Interface Module for the ETC(IME) to connect between a mobile phone and the OBE, a mobile phone to send the information of toll fees and the OBE to communicate with the RSE of roadway in the vehicle. The primary focus of this system is the IME functions and a protocol to assist of the existing mobile phone and the OBE.

This system is initialized between the OBE and a mobile phone via the IME when the OBE and a mobile phone connect to the IME has a function for initialization between the OBE and a mobile phone. The IME has lots of other functions which are authentication function to use approval process of toll fees for mobile phone, read and write function in the EEPROM for logs and other functions. For these functions this paper suggested the protocol and procedure for the ETC service.

Also, the IME is designed to be able to support the ETC service in the environment of Telematics being developed behind the steering wheel and, more recently, on the wireless handset as the next generation of communications technology for the vehicle.

The ETC system using a mobile phone supports efficient ETC system including convenient approval process for toll fees, user friendly interface and non-expensive development environment, and can join with other economical industry like car in the Telematics.