一种基于有限状态机的主控程序状态转移模型

A Master Control Program State Transfer Model Based on Finite State Machine

自动化程度高的机器设备在运行过程中接收到外部信号或指令时可作出实时反应,但其复杂的控制程序因缺乏理论模型而难以设计。通过对有限状态机原理进行数学分析,应用有限状态机原理,设计出用状态转移图表示的主控程序状态转移模型。其特点是在机器设备的不同运行阶段,与该阶段对应的主控程序状态拥有控制主导权。此模型成功应用于"全自动编织袋套袋机研发项目"PLC主控程序设计,且此模型设计机器自动化主控程序,可以大幅提高机器设备的自动化程度与运作稳定性,状态的转移与条件的关系更清晰。

After receiving the outside signals,highly automated machines can make real-time response during the operation,but the control program is difficult to design because of lack of theoretical model.Based on the mathematical analysis of finite state machine,we found that the finite state machine can help design a master control program state transition model.Its characteristic is that in different operation stages,the corresponding running state occupies the control initiatives.The model was successfully applied in the ＂research and development project of automatic bagging machine＂.The results show that the application of the finite state machine theory in the master control system can greatly improve the degree of automation and operation stability of the machine,with clearer relationship between the transfer of states and conditions.