Abstract: The modeling and simulation results of Collision Warning System (CWS) are difficult to be reacted the real expression of physical domain.As the fusion of information and physical domain,the digital twin provides an opportunity for it.In addition,the existing CWS is limited to in-car warning,and users get less warning information.Aiming at these problem,an extended CWS service architecture was put forward,its composition and operation process were discussed,and its digital twin modeling process was elaborated based on the five-dimensional framework of digital twin.To realize the conceptualization for extended CWS at the functional level,the functional model of extended CWS was carried out based on Theory of Invention Problem Solving (TRIZ) function model.In this way,the functions of the extended CWS could be fully expressed,and an overall solution integrating intelligent products and electronic services could be formed.The Analytic Hierarchy Process-Fuzzy Comprehensive Evaluation (AHP-FCE) was used to evaluate the constructed conceptual scheme.Case study showed that the model could utilize the interactive fusion feature of physical and virtual entity of the digital twin to make the function modeling and development of extended CWS possible at the conceptual level.

Key words: extended collision warning system, digital twin, 5D framework, function modeling, theory of invention problem solving, analytic hierarchy process-fuzzy comprehensive evaluation

摘要： 针对碰撞预警系统建模和仿真结果难以真实表达物理域,而且现有碰撞预警系统仅限于车内预警,用户得到的预警信息较少的问题,提出扩展碰撞预警系统服务架构,探讨了其组成和运作流程,基于数字孪生五维框架,详述了面向扩展碰撞预警系统的数字孪生建模过程,并在概念设计阶段基于发明问题解决理论功能模型对其进行功能建模,实现了其功能的全面表达,形成集智能产品和电子服务的整体解决方案,并利用层次分析—模糊综合评价法对所构建概念方案进行评估。通过系统物理实体和虚拟实体的交互融合特性,扩展碰撞预警系统在概念层面的功能建模开发成为可能。

关键词: 扩展碰撞预警系统, 数字孪生, 五维框架, 功能建模, 发明问题解决理论, 层次分析&mdash, 模糊综合评价法