The Application Of RFID-SIM Card In Electronic Toll Collection System

With the rapid development of the national economy, the highway has becomethe "golden waterway" of economic development, and Electronic Toll CollectionSystem is an important link in the highway development. Traditional Electronic TollCollection System is installed in the car with a vehicle equipment which includ thevehicle number, the vehicle equipment can credit card transactions through the RFantenna on the toll station lanes.But the equipment existenc frequency interferencedevice compatibility, signal interference problems, which is bulky and inconvenientto install, the high cost of installation and other issues. With the China's mobilephone users have breakthroughed billions, a mobile phone equipped with RFID-SIMcard to replace the parking of the vehicle equipment in the toll collection system, totake full advantage of the convenience of mobile phones, portable dependent and cellphone powerful information processing capabilities.Electronic Toll Collection System which is based on RFID-SIM consists ofRFID-SIM card and RFID reader whose communication frequency is2.4G.RFID-SIM card is placed in the cell phone, serving as a Car Unit, and RFID reader isinstalled in the passageway of toll station.They are connected with the whole roadnetwork payment system through POS.Dual interface smart FRID-SIM card is a newtype of cell phone card, which adds safe master control chip and RFID chip totraditional SIM card.It makes the FRID-SIM card bear double functions, that is,thefunction of mobile communication and the function of wireless communicationbetween attached antenna and reader. All these makes it can be used in atypicalfields, especially in cell phone's RF-SIM and identity authentication.The system is mainly made up of RFID-SIM and RFID reader with electronictag. RFID-SIM cell phone serves as mobile device of cars, and RFID reader acts assignal reader by combining driveway control system and ETC management centerwith the help of POS. When users use it for the first time, they must fill up carnumbers, car models, owner's name and bank account and so on,and then theinformation on toll stations will be written into SIM card. As the car drives into theroad network, readers can read out information in SIM card and chargesautomatically when it get out of the net. The process can be described as follows:when the car drives into the passageway, the reader sends out random number and checking information frames in the form of tags; after FRID-SIM cell phone, servingas a Car Unit, is activated by tag information, it will sent the received datainformation to reader by RF2.4G; the reader will check the consistence of theinformation to identify the right aim. If so, handshake data will be sent to RFID-SIMcard again.At the same time, RFID-SIM card will check the received information tomake sure the communication occurs with the same reader.Finally, payment isconducted and expense is deducted;if the transaction is successful, release pole opensand the car gets through.