制御バリア関数に基づく安全クリティカル自律システムの形式的テスト合成
Formal Test Synthesis for Safety-Critical Autonomous Systems based on Control Barrier Functions
ブラックボックス自律システムの仕様充足を評価するため、制御バリア関数に基づくミニマックス問題でテストパラメータを生成し、失敗を特定する手法を提案した。
著者: Prithvi Akella, Mohamadreza Ahmadi, Richard M. Murray, Aaron D. Ames
分類: eess.SY, cs.FL, cs.RO, cs.SY, math.OC
原文アブストラクト
The prolific rise in autonomous systems has led to questions regarding their safe instantiation in real-world scenarios. Failures in safety-critical contexts such as human-robot interactions or even autonomous driving can ultimately lead to loss of life. In this context, this paper aims to provide a method by which one can algorithmically test and evaluate an autonomous system. Given a black-box autonomous system with some operational specifications, we construct a minimax problem based on control barrier functions to generate a family of test parameters designed to optimally evaluate whether the system can satisfy the specifications. To illustrate our results, we utilize the Robotarium as a case study for an autonomous system that claims to satisfy waypoint navigation and obstacle avoidance simultaneously. We demonstrate that the proposed test synthesis framework systematically finds those sequences of events (tests) that identify points of system failure.
