| The smart card system in public traffic of GuangZhou is put forward for intelligent traffic system in the development of China do not perfect yet, and is faced with various attack. In GuangZhou, its intelligence public traffic system use Mifare1 (logic encryption card) card, because key system of this card have been broken, it faced with crisis. So in traffic industry of china,such as Beijing and Guangzhou and other places is step by step use CPU (intelligent card) card replacing existing Mifare1 card, but because of facility and pos improve slowly, it will be a long-term course of using CPU card replace Mifarel card, this thesis just put forward a kind of method solve this problem.In our country, the intelligent traffic system builds is later, and is still in start stage. In 2008, Chinese highway intelligent traffic market scale exceeds twenty-two billions, and will still increase with the annual high speed of increase ratet exceeds 25% for 5 years. From area development condition view, the easts such as Beijing, Shanghai and Guangzhou have had scale by beginning with the intelligent traffic construction,because this area is economic developed city, but the intelligent traffic system of center-west region still concentrate mainly in highway charge system, the built-in intelligent traffic system of city remains in continued construction and perfects.Intelligent traffic industry is very extensive, such as highway, water transport, shipping and orbit traffic are include in intelligent traffic industry and need to carry out support related to the system of function. This thesis is major in application of Province highway traffic management, city road traffic management, the public traffic management in city and so on.According to the present situation of intelligent traffic, this thesis used containing Mifarel emulation function of CPU card, have realized a kind of from Mifarel card to CPU card of transition solving schema, and offered strong basis for the smooth transition in Guangzhou public traffic system, and certain explore and practicality.At first, the thesis introduced the development of intelligent IC card, the background of intelligent traffic system as well as some problems that intelligent traffic system is faced with and intelligent traffic system develop direction. Secondly, the thesis introduced the design concept that has elaborated the principle of this system designed,and focal point have explained that custom-made instruction design modular and broken electricity protect design modular, have pointed out some key technical problems. At last, the thesis make summary for entire system.According to the application demand of system, this article describes following parts:1. Putforward the design scheme of intelligence of public transport system in Guangzhou.2. Solving the Mifarel card crisis that the GuangZhou system face on.3. According to the special custom-made demand of GuangZhou public transport, carry out the system designed.4. Analysis the security of this system, has suggested that broken electricity protects scheme and realizes.5. Realizes the intelligent card of public transport in GuangZhou, has made prospect and the suggestion in the future.Through above design and realization, it have basically satisfied the application demand of public transport in GuangZhou, and is very well to have solved the existent safe problems in present system, and have realized the system goal intended. |
