摘要
定义一种应用于铁路列车运行系统的模糊时间Petri网;针对列车运行时间存在的不确定性,该Petri网引入了4个模糊集理论函数:模糊时间片、模糊使能时间、模糊发生时间和模糊延迟,来处理时间的不确定性问题;能够对列车运行过程中的时间不确定性问题进行定量分析,可以有效应用于列车交会、列车终到时间、列车运行计划调整的分析等;其相对于已有的方法具有精确分析、计算简单、简化系统、便于系统集成的特点。
The paper defines a fuzzy time Petri net (FTPN) applied to the train operation system. Aimed at temporal uncertainty of train operation, the net adopts four fuzzy set theoretic functions of time called fuzzy timestamp, fuzzy enabling time, fuzzy occurrence time and fuzzy delay, to deal with related issues. It can be used to analyze quantitatively the temporal uncertainty of train operation, such as train meeting, train arrival time and adjustment of train operation plans etc. Compared with existing methods, FTPN has some promising properties, such as accurate analysis, simple computation, system simplifying and convenience for system integrating.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2005年第1期6-13,共8页
Journal of the China Railway Society
基金
国家自然科学基金资助项目(60174051)
河南省自然科学基金资助项目(0411012300)
