门禁管理系统，将车辆分为在场车辆和离场车辆进行管理。包括车辆信息的数据库访问接口、摄像头链接接口、下位机属性设置与通信接口。-Access control systems, the presence of the vehicle into the vehicle and managed to leave the vehicle. Including database access interface, camera link interface, the next crew vehicle co