Under the precondition of zero affection on AFC normal operation,there are bigger technical difficulties and risks in the alternation and updating of the central computer(CC) system,which operates on 7×24 hours.
在不影响自动售检票系统正常运营的前提下,对7×24h运行的中央计算机系统进行一票换乘的升级改造,存在很大的技术难度和风险。