Aircraft Checklist Actuation Error Prevention
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Solution Overview
Problem
Despite monitoring by the Pilot Monitoring (PM) pilot, actuation errors still occur when executing check-lists on aircraft, as the standard solution for managing check-lists is not fully satisfactory.
Innovation Solution
A method and system that identify and visually highlight the actuation elements to be used from a check-list, detect the pilot's hand position, check for consistency, and alert the pilot of potential incorrect actuations, guiding them to correct actions and providing recovery procedures for incorrect actuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the PM pilot monitors the PF pilot's actions manually, then some actuation errors are prevented, but actuation errors still occur and the system is complex
Solution Approach 1:
The patent replaces the manual monitoring mechanism (PM pilot visually observing PF pilot's actions) with an automated optical detection system. Sensors detect the position of the PF pilot's hand relative to actuation elements, and a processing system automatically compares this with the required action from the check-list, eliminating the need for complex human-to-human monitoring while improving reliability.
Solution Approach 2:
The patent introduces an intermediary alerting system that acts as a mediator between the check-list requirements and the pilot's actions. When the detection system identifies a mismatch between the required actuation and the pilot's actual hand position, an alert is generated to warn the pilot, providing an additional layer of error prevention without requiring the PM pilot to manually intervene.
2Reliability
If the PM pilot manually monitors each action, then actuation errors are reduced, but the pilot's attention is consumed and errors still occur
Solution Approach 1:
The system enables self-monitoring of the check-list execution. The detection unit continuously tracks the PF pilot's hand position, and the processing unit automatically compares it with the required actions from the check-list. This self-service monitoring mechanism frees the PM pilot from the need to continuously observe and verify each action manually, reducing attention consumption while maintaining or improving accuracy.
Solution Approach 2:
The patent implements a feedback mechanism where the system continuously monitors the pilot's actions and provides immediate feedback through alerts when deviations from the check-list are detected. This automated feedback loop ensures accurate check-list execution without requiring the PM pilot to dedicate continuous attention, as the system autonomously detects and reports errors.
3Measurement precision
If visual highlighting guides the pilot to the correct actuation element, then actuation accuracy improves, but the system requires additional components
Solution Approach 1:
The patent employs visual highlighting by changing the color or illumination state of actuation elements to guide the pilot. The signaling unit illuminates or colors the correct actuation element (e.g., in green) to indicate it should be actuated, and may highlight incorrect elements (e.g., in red) to warn the pilot. This visual guidance significantly improves the accuracy of identifying the correct actuation element while using relatively simple illumination or display components.
Solution Approach 2:
The signaling unit acts as an intermediary between the processing system and the pilot, translating the system's identification of the correct actuation element into visual information that the pilot can easily perceive. This intermediary layer improves measurement precision (the pilot's ability to identify the correct element) without requiring complex direct coupling between the detection system and the pilot's decision-making process.
4Reliability
If the system detects hand position and alerts to incorrect actuation, then actuation errors are reduced, but the detection system adds complexity
Solution Approach 1:
The patent replaces complex human monitoring mechanisms with a streamlined automated detection system. Simple sensors (such as optical sensors, capacitive sensors, or proximity sensors) detect the position of the pilot's hand relative to actuation elements, and a processing system automatically interprets this data to determine whether the correct element is being actuated. This substitution reduces overall system complexity while improving reliability.
Solution Approach 2:
The detection and alerting system provides immediate feedback to the pilot when an incorrect actuation is detected. The alert unit (visual, auditory, or haptic) notifies the pilot of the error, allowing for immediate correction. This feedback mechanism significantly reduces actuation errors while using relatively simple sensor and alert components, avoiding the need for complex intervention systems.
Data Source
AI summary
A system (1) including an identification unit (2) for identifying at least one actuation element to be actuated to implement a current control from a check-list, a signaling unit (3) for visually highlighting the identified actuation element, a detection unit (4) for detecting a position of a hand of a pilot, a checking unit (5) for checking whether the detected position of the hand of the pilot is consistent with the position of the identified and highlighted actuation element for the actuation thereof, an alert unit (6) for alerting the pilot to a risk of incorrect actuation, in case of absence of consistency between the detected position of the hand of the pilot and the position of the actuation element, and a recovery unit (15) for identifying, in case of incorrect actuation, at least one suggest correct actuation element.