As the top management layer of AFC system in urban rail transit network, ACC system plays an important role in AFC system. ACC is the main window of AFC system for ticket service and external information service and management.

The function of ACC system is complex. It composes of multiple subsystems including clearing system, settlement rules, ticket management, operation management, security key management, information management, system management, development, testing, training platform, uninterruptible power supply management system. There are many technical difficulties in ACC system, such as formation of security key system, selection & formulation of liquidation rules, which is one of the global puzzles in the rail transit industry.

System features

Its self-developed built-in standard reader specialized for transaction procedure of rail transit has integrated operations of card data processing, security system, ticket processing, and transaction data generation within the reader, thus simplifies the transactions of AFC software and ensures the strict execution of AFC specifications and the system security under network condition. Standard reader can be online upgraded according to the business requirements, which may reduce the cost and difficulty of system transformation.

With visual network modeling tools, the travel information can be dynamically displayed under network condition. The factors that affect clearing rules will be automatically calculated, which may provide a direct method to determine the clearing rules.

The PKI security key system is introduced in the rail transit industry to ensure the system security and data security.