摘要
为适应复杂大规模的城市交通消息管理,保证效率优势与稳定性优势,将基于语义的发布/订阅通信模型应用于交通系统的可变情报板消息管理;将来自异构数据源的粗糙数据整理成规范的RDF(Resource Description Framework)事件;将基于环境特征的可变情报板请求规范为RDF订阅。在发布订阅引擎的支持下,采用语义匹配算法,实现可变情报板的消息通知与订阅的管理,从而有效地提高了可变情报板消息的管理,保证交通信息快速准确地传递给交通信息接收者。
In order to accommodate complicated large-scale metropolitan transportation information management and ensure the predominance of efficiency and stability,in this thesis we apply the semantics-based publish/subscribe communication model to information management of variable message signs in transportation system.Raw data derived from heterogeneous data source is packed up to normative RDF（Resource Description Framework） events;requests of variable message signs based on environment characteristics is normalised to RDF subscription.With the support of publish/subscribe engine and adopting semantics-based matching algorithm,we implement the information publish/subscribe management of variable message signs,therefore the information management of variable message signs is effectively improved,which ensures quick and accurate conveying of transportation information to the information receivers.
出处
《计算机应用与软件》
CSCD
2011年第4期8-11,20,共5页
Computer Applications and Software
基金
国家自然基金项目(60803004
60873224
60873045)
国家高技术研究发展计划(2007AA01Z1242
008AA01Z1412
009AA01Z121)
关键词
智能交通
可变情报板
语义
发布/订阅
Intelligent transportation system Variable-message signs Semantics Publish/ Subscribe
