Design of metro automatic fare collection system based on cloud computing technology.

With the constant expansion of metro network scale, the existing metro automatic fare collection system encounters severe challenges including, but not limited to, high construction cost, low resource utilization rates and complicated maintenance. To solve these problems, this paper designed an absolutely new metro automatic fare collection system(CAFC system) based on cloud computing technology. Firstly, it established the system framework, cloud architecture, physical topology and software system construction. Compared to the existing one, owing to its much more simple architecture, the new CAFC system performed excellently on the aspects of decreasing its capacity and lowering its investment. Then, it analyzed the logic processes of all the business among certain hierarchy, as well as between system and the users, system and its external interfaces. Finally, it proposed a security solution program concerning firewall, intrusion detection system, data backup and PKI. Besides the traditional function like fare collection automatically and ticketing management, the new CAFC system greatly lowers the investment cost and increases resource utilization rates simultaneously. It could be believed that the new CAFC system has significant meaning to low-carbon operation of metro. [ABSTRACT FROM AUTHOR]