CPDLC Message Threading and Auto-Arm in Avionics
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Solution Overview
Problem
Current avionics systems require flight crew personnel to switch between multiple displays and interfaces to manage Controller-Pilot Data Link Communication (CPDLC) functions, leading to distractions and increased risk of delays or injuries due to the time-intensive process of generating and sending CPDLC messages.
Innovation Solution
An avionics device with a processor and human-machine interface that receives CPDLC messages, identifies requests for navigation parameters, generates report message labels, and displays messages in a threaded format on a single display screen, allowing for streamlined input and review of CPDLC messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If flight crew personnel switch between multiple displays and interfaces to manage CPDLC functions, then comprehensive control and monitoring is achieved, but attention is diverted from the flight scene and operational time increases
Solution Approach 1:
The patent combines multiple CPDLC functions (message composition, navigation parameter retrieval, report generation, and transmission) into a single integrated display interface. This allows flight crew to access and manage all CPDLC operations without switching between multiple displays or panels, directly resolving the contradiction by improving ease of operation while reducing time loss through consolidated functionality.
Solution Approach 2:
The display interface is designed to perform multiple CPDLC-related functions simultaneously - displaying incoming messages, composing responses, automatically retrieving navigation parameters, generating reports, and tracking message status. This multi-functional approach eliminates the need for separate interfaces for each function, thereby improving operational efficiency without sacrificing comprehensive control.
2Manufacturing precision
If flight crew personnel manually gather and input information for CPDLC messages, then message accuracy is improved, but the process becomes time intensive and requires navigation through multiple displays
Solution Approach 1:
The system automatically retrieves navigation parameters (such as position, altitude, speed) from the aircraft's own systems and populates them into CPDLC messages without requiring manual input from flight crew. This self-service approach maintains message accuracy through automated data extraction while dramatically improving processing speed by eliminating manual navigation through multiple displays and interfaces.
Solution Approach 2:
The system pre-loads and caches navigation parameters and aircraft status data in ready-to-use format before CPDLC messages need to be composed. This preliminary preparation ensures that accurate data is immediately available when message composition is required, maintaining precision while reducing the time needed for information gathering and input.
3Loss of information
If detailed navigation parameters and report information are displayed together, then information completeness is improved, but display organization becomes complex
Solution Approach 1:
The display interface segments information into distinct functional areas: incoming message display, response composition area, navigation parameter display, and report status indicators. Each segment presents specific information clearly without overwhelming the overall display, maintaining information completeness while reducing perceived complexity through organized spatial distribution of data elements.
Data Source
AI summary
To facilitate improved Controller-Pilot Data Link Communication (CPDLC) interfacing, report messages can be automatically armed and displayed in a threaded message format in the same message panel with other CPDLC messages between a vehicle and a ground system. Upon determining that a report is needed based on an uplink CPDLC message from the ground system, a report message label is displayed on the CPDLC message panel. Once the report is ready, it is automatically armed and the report message label indicates to the operator that the report message is ready to be sent. The operator can also select the report message label in the message panel to display the report message.