中文摘要：

系统开启后服务台以高速率为顾客服务,直到系统中无顾客等待服务。服务台进入闲置期,如果仍无顾客进来,进入低速率服务期。在此期间等待服务的顾客数大于或等于N时,进入高速率服务期。利用随机模型的矩阵几何解方法,得到了极限状态下条件顾客数和条件等待时间的分布,以及顾客数和等待时间的随机分解。

英文摘要：

When the system is turned on, the service desk services at a high rate, until there is no customer. Reception into the idle period, if there is still no customers, the system comes into the low rate of service. When the number of customers waiting for service during this period is greater than or equal to N, into the high rate of service. Using the random model matrix geometric solution obtains the distribution of the number of customers under extreme conditions and conditions state waiting time, and stochastic decomposition of customer number and waiting time.