基于Petri网的滑行道助航灯控制方法研究

摘要

For automatic decision-making in command and control of A-SMGCS taxiway guidance lights. Petri-net (PN)-based dynamic method is proposed in this paper. Firstly, according to PN, a dynamic operation model is constructed, which is based on modular and synchronizing composition techniques. Secondly, the controller integrated method based on a model of logical mutex constraint identifier is given. Then, the command and control decision-making method and the corresponding algorithm are provided based on the enable state of transition. Lastly, the authors make a sand table to simulate the navaid light system, and implement the algorithm for navaid light system control and decision making by using computer and PLC. An example on the decision-making in command and control for taxiway lights demonstrates the effectiveness of the proposed approach.%针对A-SMGCS中滑行道助航灯控制指令自动决策,提出一种基于Petri网的决策方法.首先基于模块化和同步合成技术,采用Petri网建立滑行道运行动态模型；然后,提出了基于模型标识逻辑互反约束的控制器综合方法；其次,提出基于模型中变迁使能状态实现助航灯控制指令决策的算法；最后,制作了助航灯控制试验沙盘,并采用工控机和PLC实现了助航灯控制指令决策算法,验证了所给滑行道助航灯控制方法的有效性.