arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.12819cs.AIcs.LGcs.ROcs.SYeess.SY
收藏

结合机器学习和规则算法的安全决策与控制框架

A Safety-Critical Decision Making and Control Framework Combining Machine Learning and Rule-based Algorithms

Aalto University(阿尔托大学)

Andrei Aksjonov, Ville Kyrki

摘要:

虽然基于人工智能的方法缺乏透明度,但基于规则的方法在安全关键系统中占主导地位。然而,后者无法与第一个在多个要求的鲁棒性方面竞争,例如,同时解决安全性,舒适性和效率。因此,为了从这两种方法中受益,它们必须加入一个单一的系统。本文提出了一个决策和控制框架,它的优势,基于规则和机器学习的技术,同时弥补他们的缺点。所提出的方法体现了两个控制器并行操作,称为安全和学习。基于规则的切换逻辑选择从两个控制器传输的操作之一。当学习控制器不满足安全约束时,安全控制器每次都被优先化,并且还直接参与安全学习控制器训练。选择自主驾驶中的决策和控制作为系统案例研究,其中自主车辆学习多任务策略以安全地穿过无保护的交叉口。多项要求(即,安全性、效率和舒适性)。数值模拟所提出的框架进行验证,其能力,以满足要求和鲁棒性不断变化的环境被成功地证明。

英文摘要:

While artificial-intelligence-based methods suffer from lack of transparency, rule-based methods dominate in safety-critical systems. Yet, the latter cannot compete with the first ones in robustness to multiple requirements, for instance, simultaneously addressing safety, comfort, and efficiency. Hence, to benefit from both methods they must be joined in a single system. This paper proposes a decision making and control framework, which profits from advantages of both the rule- and machine-learning-based techniques while compensating for their disadvantages. The proposed method embodies two controllers operating in parallel, called Safety and Learned. A rule-based switching logic selects one of the actions transmitted from both controllers. The Safety controller is prioritized every time, when the Learned one does not meet the safety constraint, and also directly participates in the safe Learned controller training. Decision making and control in autonomous driving is chosen as the system case study, where an autonomous vehicle learns a multi-task policy to safely cross an unprotected intersection. Multiple requirements (i.e., safety, efficiency, and comfort) are set for vehicle operation. A numerical simulation is performed for the proposed framework validation, where its ability to satisfy the requirements and robustness to changing environment is successfully demonstrated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑