变计时过程变迁网模型及其应用研究.pdfVIP

2004 年 11 月 第 19 卷第11 期 控制与决策 Vo l. 19 No.11 Control and Decision Nov. 2004 文章编号: 1001心920(2004)11翩 1275心3 变计时过程/变迁网模型及其应用研究 李彦平，李雪飞，万福才，原忠虎 tt 阳大学信息工程学院，辽宁 tt 阳 110044) 摘 要1 ~基于过程运行的离散标识(逻辑变量)和剩余时间连续标识(时间变量)，提出一种新的混合标识过程/变迁 网一一变计时过程/变迁网模型.基于该模型，混杂动力学系统离散事件的实时监控、连续子过程的实时调度等问题 可得到有效解决. 关键词:变计时过程/变迁网;混杂动力学系统;实时监控;实时调度;过程控制 中阳分类号: TP273 文献标识码:A Research on time-varied process/transition Petri net and its applications LI Yan-ping , LI Xue-fei , WAN Fu-c町，咒JAN Zhong-hu CCollege of Information Engineering. Shenyang University. Shenyang 110044. China. Correspondent: LI Yan-ping. E-mail: liyp988@) Abstract: Based on process running discrete mark Oogic variables) and process running remanent time (time variables ). a new model of process/transition Petri nets with mixed-mark. named time-varied process /transition Petri nets. is proposed. Many problems of hybrid dynamics systems. such as the integrated modeling of continuous sub-processes. the coupling and joíning between discrete variables and continuous states. the real幡time supervisory control of discrete events. the real-time scheduling of continuous sub- processes. etc. can be solved effectively with this modet. Key words: time暗varied process/transition Petri net ,hybrid dynamics system ,real-time supervisory control; real- 、 time scheduling; process control 日 一 中 1 51 型侧重于同…层面上表现连续变量(过程变最〉与离 散变量(运行标志)间的搁合关系;而层次模型则侧 一个复杂的漉杂动力学系统通常由多个连续子 翼表现DEDS 与多个CVDS 的上下从属关系.无论 过程(连续变量动态系统CVDS)组成，连接予过程