AFC system stands for Automatic Fare Collection System, is a kind of centralized control by the vending machine (including semi-automatic ticket),
air force 1 high, automatic fare collection and automatic toll collection and statistical closed automation network system.
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Work principle of hierarchy of automatic fare collection system (AFC) is based on the computer, communications, networking, and automatic control technology, rail ticketing, ticketing, billing, charges, statistics,
air force 1 shoes, clearing, management of the whole process of automation systems. Foreign economic developed cities of rail transportation, has been the widespread adoption of this management system, and developed to a certain advanced level of technology. China's urban rail transit automatic fare collection equipment, the station, originally from foreign countries in recent years, China has done a lot of development work, made various forms of products, technology is ever increasing. Domestic development of rail transit AFC system has gone through the process from scratch, with the computer technology and software development, China's urban rail transit AFC technology has been with the city card standards, to achieve urban and even urban range card. Hierarchy of urban mass transit automatic fare collection system (AFC) in the structure of the hierarchical division is divided into tickets,
air force one low nike, station terminal equipment, the station computer system, the line central computer system, five levels of processing systems. Hierarchy in accordance with the operation of closed approach to the meter charge based on the model,
nike air force 1 high, using non-contact IC card ticket composed of the principle of the medium, according to the level of equipment and subsystems for their respective functions, management functions and the location of the division. Determine the type of the current five-story structure is based on status of China's national conditions and urban development, considering the characteristics of rail transit construction (such as the line are many and complex, long construction period, a number of owners of units, etc.) and set up, with some scalability. On all levels must implement the functions and requirements of the following: the first level --- tickets held by passengers fare is paid media, provides one-way ticket stored-value cards and two types of physical properties, electrical properties, applications file organization and security and other technical requirements; the second level --- station terminal equipment of the station, installed in each room, direct service to passengers fare collection equipment, terminal equipment and the provision of the station operation and management of technical requirements; s Three --- station computer system, its main function is to carry out the second layer status monitoring station terminal equipment, and the collection site of transaction and audit data, the system provides data management, operations management and system maintenance and management of technology requirements; the fourth floor --- line central computer system, its main function is to collect the AFC line of transaction systems and audit data, and send the data processing systems of urban rail transit, and reconciled with, the provisions of the ticket to the ticket line management, operations management and technical requirements for system maintenance; fifth floor --- processing systems, its main function is unity within the urban rail transit AFC system, the various operating parameters, collection of urban rail transit AFC system of transaction data and audit data and clear points and reconciliation, is also responsible for connecting the city and urban rail transit AFC system card processing systems, provides for ticket management and ticket management, operations management and system maintenance and management technical requirements. Automatic ticket gates in the system, the need for multiple serial applications such as automatic ticket handling port, non-contact IC card, the display message for display, block device controller, the central controller, alarm,
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