An Architecture Integrity Simulation Evaluation Method for an Autonomous Transportation System Based on an Information-Triggered Collaboration Mechanism
An Architecture Integrity Simulation Evaluation Method for an Autonomous Transportation System Based on an Information-Triggered Collaboration Mechanism
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DOI：
10.1109/mits.2023.3272501
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发表时间：
2023-09
影响因子：
3.6
通讯作者：
Zhuolin Deng;Ming-cheng Cai;Chen Xiong
中科院分区：
文献类型：
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作者：
Zhuolin Deng;Ming-cheng Cai;Chen Xiong
自主交通系统（ATS）专注于交通服务，并已变得更有能力处理随机交通场景。ATS管理与控制系统设计与建设的首要工作是建立一个指导性的、系统化的体系结构。然而，传统交通系统的建设过程一般遵循功能和需求导向的方式。因此，很少有研究解决架构完整性评估和验证。在这项工作中，我们提出了一个合作机制为基础的方法来ATS体系结构的完整性评估。首先，为了对ATS进行清晰的描述，从ATS基本元素的产生、定义和属性等方面系统地介绍了ATS理论，然后基于微服务的概念分析了各个元素之间的关系。其次，提出了物理体系结构的协同机制，实现了体系结构的自适应构建。此外，为实现体系结构完整性评价，确定了系统功能和信息流相结合的对比方案，并据此确定了参考结果和计算结果的两种独立获取方式。最后，以自动驾驶汽车通过交叉口为例，验证了该静态仿真评估方法的可行性，并取得了100%的功能完整率和93.3%的IF完整率。实例分析表明，该方法可以推广到更一般的交通场景。
Autonomous transportation systems (ATSs) focus on traffic services and have become more capable of handling stochastic traffic scenarios. The preliminary work for designing and constructing ATS management and control systems is to develop an instructive and systematic architecture. However, the construction process of a conventional traffic system generally follows a function- and demand-oriented way. Thus, few studies have addressed architecture integrity evaluation and verification. In this work, we propose a collaboration mechanism-based approach to ATS architecture integrity evaluation. First, to provide a clear description of ATSs, ATS theory was systematically introduced through the generation, definition, and property of its basic elements, and then the relations between each element were analyzed based on the concept of microservices. Second, a collaboration mechanism on physical architecture was proposed to realize the adaptive construction of the architecture. Additionally, to fulfill the evaluation of architecture integrity, a contrast scheme combined with system function and information flow (IF) was determined, and accordingly, two independent ways were determined to obtain both the reference and calculated results. Finally, the scenario of automatic vehicles passing through an intersection was illustrated to demonstrate the feasibility of this static simulation evaluation method for the scenario architecture, and achieved a 100% function integrity rate and 93.3% IF integrity rate. A successful application in the case study shows that the proposed method could be extended to more general traffic scenarios.