Avionics Usage Domain Message for Command Display Management
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Solution Overview
Problem
Current avionics communication protocols, such as ARINC 661 and ARINC 739, do not allow for effective management of the display and man-machine interface by the receiving device, limiting the ability to display avionics commands and their availability to users.
Innovation Solution
An avionics device generates and sends a usage domain message containing a list of available avionics commands to the receiving device, enabling it to determine and display command availability, and includes features like authorized value ranges, unavailability status, and subscription management for regular data updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the avionics device uses traditional protocols (ARINC 661 or ARINC 739) to control display, then the display control is centralized in the avionics device, but the receiving device cannot independently manage its display and man-machine interface
Solution Approach 1:
The patent segments the display control functionality by introducing a new message type (usage domain message) that separates command availability information from traditional display control. This allows the receiving device to independently manage its display while maintaining protocol compatibility, resolving the contradiction between display independence and protocol simplicity.
Solution Approach 2:
The usage domain message acts as an intermediary between the avionics device and receiving device, carrying command availability information that enables the receiving device to autonomously manage its display interface without requiring complex protocol changes or centralized control.
2Ease of operation
If the receiving device displays all possible avionics commands, then complete information is provided to users, but irrelevant commands clutter the interface and reduce usability
Solution Approach 1:
The patent applies local quality by providing different information to different receiving devices based on their specific context and capabilities. The usage domain message contains command availability information tailored to each receiving device, allowing it to display only relevant commands while maintaining complete information for the specific context.
Solution Approach 2:
The avionics device sends usage domain messages that provide feedback about which commands are currently available and relevant. This feedback mechanism allows the receiving device to dynamically adjust its display to show only applicable commands, improving usability without losing necessary information.
3Measurement precision
If the avionics device sends detailed usage domain information to each receiving device, then precise command availability is communicated, but network traffic and processing load increase
Solution Approach 1:
The patent extracts only the essential command availability information into a dedicated usage domain message, separating it from other display control data. This extraction approach provides precise command availability communication while minimizing network traffic by including only the necessary information elements.
Data Source
AI summary
This avionics device intended to be on board an aircraft is configured to implement an avionics function and to control the display, by at least one receiving device, of data associated with the avionics function, the avionics function including one or several avionics commands able to be displayed on the receiving device and selected by a user.The avionics device comprises a module for generating a data message, and a module for sending said message to the receiving device.The generating module is configured to generate a usage domain message containing a list of avionics command(s) available for the corresponding avionics function, and the sending module is configured to send the usage domain message to the receiving device, to display the availability of the only command(s) included in said list.