基于虚拟工序队列的FMS动态调度原理与t,t_1,t_2的轮置处理

Dynamic Scheduling Principle and the Change Disposal of t,t_1,t_2 on Virtual Process-queue of FMS

从启发式调度的角度来分析了FMS系统调度 ,并利用虚拟工序队列技术建立了一个FMS动态启发式调度的原理图。然后详细分析了该启发式调度中所遇到的t,t1,t2 的轮置问题 ,提出了轮置的新方法。最后对一个典型的FMS进行了实例仿真。

This paper analyzed the schedule of FMS from the aspect of look_ahead scheduling. It set up a theory chart of look_ahead scheduling for FMS with the help of virtual process_queue technology and then particularly analyzed the problem of the change of t,t 1,t 2 in the above scheduling.Finally it simulated a typical FMS.