Aircraft human-machine interaction assistant design: A novel multimodal data processing and application framework

During aircraft operations, pilots rely on human-machine interaction platforms to access essential information services. However, the development of a highly usable aerial assistant necessitates the incorporation of two interaction modes: active-command and passive-response modes, along with three input modes: voice inputs, situation inputs, and plan inputs. This research focuses on the design of an aircraft human-machine interaction assistant (AHMIA), which serves as a multimodal data processing and application framework for human-to-machine interaction in a fully voice-controlled manner. For the voice mode, a finetuned FunASR model is employed, leveraging private aeronautical datasets to enable specific aeronautical speech recognition. For the situation mode, a hierarchical situation events extraction model is proposed, facilitating the utilization of high-level situational features. For the plan mode, a multi-formations double-code network plan diagram with a timeline is utilized to effectively represent plan information. Notably, to bridge the gap between human language and machine language, a hierarchical knowledge engine named process-event-condition-order-skill (PECOS) is introduced. PECOS provides three distinct products: the PECOS model, the PECOS state chart, and the PECOS knowledge description. Simulation results within the air confrontation scenario demonstrate that AHMIA enables active-command and passive-response interactions with pilots, thereby enhancing the overall interaction modality.