具有混合约束的DES Petri网控制器的设计

针对基于Petri网离散事件系统库所和变迁混合不等式约束反馈控制器的设计问题，提出一项新型设计具有库所和变迁混合约束的Petri网控制器的方法——利用Petri网简化技术把所有约束库所融合为一个与它们标识总量相等的库所，然后再与受约束的变迁进行对照比较，使控制器的设计更为简单并且避免了死锁，尤其是对规模较大的系统，其优势更加明显。借助一个应用实例．将该控制器设计方法与Yamalidou等人提出的控制器设计方法作比较，表明所提出的控制器设计方法不仅更简单、更有效而且可以应用到推广Petri网。

Controller Design of DES Petri Nets with Mixed Constraint

The problem of constructing a Petri net feedback controller, which enforces the conjunction of a set of linear inequalities on the reachable marking of the place and transition modeled by Petri net, is discussed. A new method of controller design with mixed constraint is presented, and a net reduction technique of Petri net fuses all the constrained places into one place whose marking is equal to the sum of the markings of the constrained places, and then compared with the constrained transitions. The net reduction eases the design of controller and holds remarkable advantages especially for systems with large scale. The method is proved to be simpler and more efficient than the method presented by Yamalidou, et al, using an applied case used by Yamalidou, et al.