CPDLC Shortcut Interface for Automated Follow-up Message Composition
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Solution Overview
Problem
Current CPDLC human machine interface systems require significant 'head-down time' for pilots to respond to negative uplink messages, delaying urgent actions as they need to search for and recreate messages, which increases processing time and reduces accuracy.
Innovation Solution
A system with a shortcut interface that automatically displays and generates a 'when can we expect' message related to a previously-sent downlink request when a negative uplink response is received, reducing the need for pilots to navigate through menus and type duplicate data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the pilot manually searches message logs and navigates through menus to compose a follow-up message after receiving a negative uplink response, then the message can be sent with accurate data, but the head-down time increases significantly
Solution Approach 1:
The system performs preliminary action by automatically retrieving and populating message composition data from the original downlink request before the pilot needs to send the follow-up message. When a negative uplink response is detected, the system proactively fetches the associated request message details and pre-fills the composition screen, eliminating the need for the pilot to manually search and re-enter data.
Solution Approach 2:
The system serves itself by automatically detecting negative uplink responses, retrieving associated message data, and populating the composition screen without requiring pilot intervention for data retrieval. The system autonomously identifies the relevant request message, extracts its parameters, and prepares the follow-up message content, reducing the pilot's workload to simple verification and sending.
2Reliability
If the pilot focuses on flying the aircraft rather than looking at display screens, then flight safety improves, but the ability to quickly respond to urgent ATC messages decreases
Solution Approach 1:
The system autonomously detects negative uplink responses and automatically retrieves the associated request message data without requiring the pilot to divert attention to the display. The system self-services the message composition process by fetching data, populating fields, and presenting the follow-up message ready for review, allowing the pilot to maintain flight focus while enabling rapid response when needed.
Solution Approach 2:
The system implements feedback by monitoring incoming uplink messages, detecting negative responses, and automatically triggering the retrieval and composition of appropriate follow-up messages. This closed-loop feedback mechanism ensures that urgent messages are quickly identified and prepared for response without requiring the pilot to continuously monitor all system states.
3Loss of time
If a shortcut interface automatically generates follow-up messages, then response time decreases, but the complexity of the HMI system increases
Solution Approach 1:
The system introduces an intermediary automated message composition layer between the pilot and the raw message data. Instead of the pilot directly navigating complex menus and searching logs, the intermediary system automatically retrieves data, populates composition screens, and presents ready-to-send messages. This intermediary handles the complexity of data retrieval and message construction, leaving the pilot with a simple send action.
Solution Approach 2:
The HMI system self-services the complex tasks of message retrieval, data extraction, and composition screen population. The system autonomously identifies the relevant request message, extracts its parameters, and fills the follow-up message template without requiring the pilot to interact with complex system functions. The complexity is absorbed by the system's self-service capabilities rather than being exposed to the pilot.
Data Source
AI summary
A system to reduce head-down time for a flight crew member is provided. The system includes a functional module that includes a set of screens used to receive and send controller pilot data link communications (CPDLC) messages between an aircraft and a ground-based system; a message composition screen communicatively coupled to the functional module; and a shortcut interface communicatively coupled to the functional module, wherein a shortcut prompt is displayed when one of a response timer expires or a negative uplink response message is received responsive to a previously-sent downlink request message, wherein an implementation of the shortcut interface generates a “when can we expect . . . ” message related to the previously-sent downlink request message.