基于扩展HTN规划的物流Web服务组合研究
发布时间：2018-08-07 06:57
【摘要】：在经济全球化和电子商务的双重推动下，强化资源整合和物流全过程优化是现代物流发展的必然趋势。物流服务网络化即是在这样的大背景下诞生的一种新的物流模式。它通过互联网跨区域的实现整个物流运作过程中的信息传递，以信息引导物流过程，整合分散的物流资源，实现物流服务网络化。随着信息技术的进步，物流企业开始应用信息技术成果构建网络化物流服务系统。传统的EDI交换技术、网络GPS技术、XML等新工具操作复杂，，投入费用高，不能适应环境的动态变化，使得目前的物流服务网络化系统开放性和共享程度还不是很理想，大规模应用受到限制。Web服务组合技术以其技术和成本优势为物流服务网络化提供了新的思路。 本文提出基于扩展HTN规划的物流Web服务组合模型，即是将物流服务形式化描述为Web服务，通过Web服务组合相关技术，实现跨区域、跨系统平台物流服务组合。然而要实现物流Web服务组合必然要面临三个问题：①物流Web服务和物流需求统一的形式化描述以及物流需求模板的建立；②物流服务的发现和匹配，即从大量的物流Web服务中发现满足约束条件要求的物流Web服务。③物流Web服务组合，即将Web服务单元按照需求执行序列进行组合，并保证服务组合的整体最优。本文从以下几个方面解决上述问题：①基于Web服务组合总体框架构建了物流Web服务组合框架，将服务组合过程分为物流需求解析、服务发现和组合、服务组合执行监控和执行效果反馈模块。②基于物流Web服务和物流需求描述参数形式给出了概念、区间、模糊函数相似度计算方法，为物流Web服务的匹配提供了依据。③针对物流需求交互和物流Web服务冲突建立了物流Web服务组合流程，针对物流Web服务的动态变化设计了服务组合执行效果反馈流程。④对HTN任务规划方法进行领域知识扩展和规划过程控制扩展，使得任务网络描述能够表达时间、资源和满意度约束。提出了基于扩展HTN的物流Web服务组合方法。规划过程中需求规划与服务匹配同时进行，过滤不满足约束条件要求的规划分支，缩小规划空间，提高规划效率。 本文最后，基于扩展HTN规划的物流Web服务组合流程，在经典HTN规划引擎SHOP2的基础上进行二次开发，对扩展的HTN规划服务组合方法进行分析和验证。
[Abstract]:Under the dual impetus of economic globalization and electronic commerce, it is the inevitable trend of modern logistics development to strengthen the integration of resources and optimize the whole process of logistics. Logistics service network is a new logistics mode born under this background. It realizes the information transmission in the whole logistics operation process through the Internet, guides the logistics process with the information, integrates the dispersed logistics resources, and realizes the logistics service network. With the development of information technology, logistics enterprises begin to construct network logistics service system with the application of information technology. New tools, such as traditional EDI exchange technology, network GPS technology and so on, have complex operation, high input cost, and can not adapt to the dynamic change of environment, which makes the current logistics service network system open and sharing degree is not very ideal. Large-scale application of Web service composition technology provides a new idea for logistics service network because of its advantages of technology and cost. In this paper, a logistics Web service composition model based on extended HTN programming is proposed, in which logistics services are formally described as Web services, and cross-regional and cross-system platform logistics service composition is realized through Web service composition technology. However, in order to realize logistics Web service composition, we must face three problems: 1 Logistics Web service and logistics demand unified formal description, and the establishment of logistics demand template and the discovery and matching of logistics service. From a large number of logistics Web services, the logistics Web service 3 logistics Web service composition is found, that is, the Web service unit is composed according to the demand execution sequence, and the whole service composition is guaranteed to be optimal. Based on the general framework of Web service composition, this paper constructs a logistics Web service composition framework from the following aspects: 1. The process of service composition is divided into logistics demand analysis, service discovery and composition. Based on logistics Web service and logistics requirement description parameter form, this module gives the concept, interval and fuzzy function similarity calculation method. In order to match logistics Web services, a logistics Web service composition process is established for logistics demand interaction and logistics Web service conflict. According to the dynamic changes of logistics Web services, the feedback flow of service composition execution effect is designed. 4. The domain knowledge extension and planning process control extension of HTN task planning method are carried out, so that the task network description can express the time. Resource and satisfaction constraints. A method of logistics Web service composition based on extended HTN is proposed. In the planning process, the requirement planning and the service matching are carried out simultaneously, which filter out the planning branches which do not meet the requirements of the constraint conditions, reduce the planning space and improve the planning efficiency. Finally, the logistics Web service composition process based on extended HTN programming is redeveloped on the basis of classical HTN programming engine SHOP2, and the extended HTN planning service composition method is analyzed and validated.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.09;F253.9
本文编号：2169233
[Abstract]:Under the dual impetus of economic globalization and electronic commerce, it is the inevitable trend of modern logistics development to strengthen the integration of resources and optimize the whole process of logistics. Logistics service network is a new logistics mode born under this background. It realizes the information transmission in the whole logistics operation process through the Internet, guides the logistics process with the information, integrates the dispersed logistics resources, and realizes the logistics service network. With the development of information technology, logistics enterprises begin to construct network logistics service system with the application of information technology. New tools, such as traditional EDI exchange technology, network GPS technology and so on, have complex operation, high input cost, and can not adapt to the dynamic change of environment, which makes the current logistics service network system open and sharing degree is not very ideal. Large-scale application of Web service composition technology provides a new idea for logistics service network because of its advantages of technology and cost. In this paper, a logistics Web service composition model based on extended HTN programming is proposed, in which logistics services are formally described as Web services, and cross-regional and cross-system platform logistics service composition is realized through Web service composition technology. However, in order to realize logistics Web service composition, we must face three problems: 1 Logistics Web service and logistics demand unified formal description, and the establishment of logistics demand template and the discovery and matching of logistics service. From a large number of logistics Web services, the logistics Web service 3 logistics Web service composition is found, that is, the Web service unit is composed according to the demand execution sequence, and the whole service composition is guaranteed to be optimal. Based on the general framework of Web service composition, this paper constructs a logistics Web service composition framework from the following aspects: 1. The process of service composition is divided into logistics demand analysis, service discovery and composition. Based on logistics Web service and logistics requirement description parameter form, this module gives the concept, interval and fuzzy function similarity calculation method. In order to match logistics Web services, a logistics Web service composition process is established for logistics demand interaction and logistics Web service conflict. According to the dynamic changes of logistics Web services, the feedback flow of service composition execution effect is designed. 4. The domain knowledge extension and planning process control extension of HTN task planning method are carried out, so that the task network description can express the time. Resource and satisfaction constraints. A method of logistics Web service composition based on extended HTN is proposed. In the planning process, the requirement planning and the service matching are carried out simultaneously, which filter out the planning branches which do not meet the requirements of the constraint conditions, reduce the planning space and improve the planning efficiency. Finally, the logistics Web service composition process based on extended HTN programming is redeveloped on the basis of classical HTN programming engine SHOP2, and the extended HTN planning service composition method is analyzed and validated.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.09;F253.9
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