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ALARMS: Alerting and Reasoning Management System for Next Generation Aircraft Hazards
Proceedings of the 26th Conference on Uncertainty in Artificial Intelligence, PMLR R8:101-108, 2010.
Abstract
The Next Generation Air Transportation System will introduce new, advanced sensor technologies into the cockpit. With the introduction of such systems, the responsibilities of the pilot are ex- pected to dramatically increase. In the ALARMS (ALerting And Reasoning Management System) project for NASA, we focus on a key challenge of this environment, the quick and efficient han- dling of aircraft sensor alerts. It is infeasible to alert the pilot on the state of all subsystems at all times. Furthermore, there is uncertainty as to the true hazard state despite the evidence of the alerts, and there is uncertainty as to the effect and duration of actions taken to address these alerts. This paper reports on the first steps in the con- struction of an application designed to handle Next Generation alerts. In ALARMS, we have identified 60 different aircraft subsystems and 20 different underlying hazards. In this pa- per, we show how a Bayesian network can be used to derive the state of the underlying haz- ards, based on the sensor input. Then, we pro- pose a framework whereby an automated sys- tem can plan to address these hazards in coop- eration with the pilot, using a Time-Dependent Markov Process (TMDP). Different hazards and pilot states will call for different alerting automa- tion plans. We demonstrate this emerging ap- plication of Bayesian networks and TMDPs to cockpit automation, for a use case where a small number of hazards are present, and analyze the resulting alerting automation policies.