摘要
本文首先建立了TMSS列车运行模拟系统,由其模拟产生列车运行冲突信息,与现场信息一起提交给列车调度专家系统CADES进行求解。在建造CADES时,根据列车调度领域知识的特点,将列调领域知识分为元级知识和领域知识,建立了层次型的知识库,将CADES的推理机设计为三级控制结构,使CADES成为一个动态的多级产生式专家系统,能够根据TMSS的信息变化自动地选择规则集和推理控制策略,问题的求解过程也能自适应于实际情况的变化,使其与列车调度员进行运行调整的复杂,灵活的思维过程更为接近。对CADES用OPS83和C语言进行了实现。
A train movement simulation system (TMSS) is built up, which can produce the predicted imformation for train movement conflicts by means of simulation.This information, together with the actual train movement information, is provided for the CADES (Computer Aided Dispatching Expert System) to process for solution. In building the CADES, the dispatching knowledge is divided into meta-knowledge and domain knowledge according to the several characteristics of train dispatching, and a hierarchical knowledge base and database is built. The inference engine of the CADES is designed with a three-level structure so that the CADES is a dynamic production system with multiple levels, which can automatically select the rule sets and inference control strategies according to the information produced by the TMSS. Consequently, the resolution process of problems will be self-adapting and closer to the complicated and quick-witted thinking process of train dispatchers. Finally the CADES is implemented with OPS83 and C.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
1992年第3期31-41,共11页
Journal of the China Railway Society
关键词
专家系统
模拟
列车调度
运行调整
expert system, simulation, train dispatching, schedule readjustment, TMSS, CADES
