Avionics Voice Command Validation via Contextual Consistency Checks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current voice-activated assistance systems in avionics have vulnerabilities such as adversarial examples and vocabulary limitations, which can lead to errors in processing voice commands, posing safety risks in critical avionics functions like flight control or communication, where incorrect commands can have severe consequences.
Innovation Solution
An electronic control device for avionics systems that includes a reception module for voice instructions, a speech recognition module, a processing module for associating textual transcripts with actions, and a monitoring module to check consistency with predetermined rules, ensuring that only valid commands are generated and transmitted, featuring a validation module for operator confirmation and an alert system for inconsistencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If voice-activated assistance systems with machine learning algorithms are used in avionics, then operator interaction is facilitated and ease of operation is improved, but system reliability deteriorates due to vulnerabilities such as adversarial examples, training database limitations, and semantic engine constraints that can lead to erroneous command processing
Solution Approach 1:
The patent introduces an intermediary monitoring device that sits between the speech recognition module and the avionics system. This monitoring device includes a control module that validates voice commands against multiple consistency rules (syntax rules, lexical field rules, and contextual rules) before execution. The intermediary acts as a mediator that filters and verifies commands, preventing erroneous commands from reaching the critical avionics functions while still allowing natural voice interaction.
Solution Approach 2:
The monitoring device implements feedback mechanisms by checking command consistency and providing validation results. The system evaluates whether the transcribed command matches expected syntax, belongs to the appropriate lexical field, and is consistent with the current avionics context. This feedback loop ensures that only valid commands are executed, improving reliability while maintaining ease of operation.
2Ease of operation
If comprehensive voice command processing is implemented to improve ease of operation, then operator interaction is enhanced, but device complexity increases due to the need for multiple monitoring rules and validation layers
Solution Approach 1:
The monitoring device is segmented into distinct functional components: a speech recognition module for voice-to-text conversion, a control module for command validation, and multiple rule databases (syntax rules, lexical field rules, contextual rules). Each component has a specific function, making the overall complex system manageable through modular design. The segmentation allows independent development and testing of each module while maintaining ease of operation through integrated voice processing.
Data Source
AI summary
An electronic control device of an avionics system for implementation of a critical avionics function, comprising:a module for receiving a voice instruction signal;a speech recognition module configured to transform the voice signal into a textual transcript;a processing module configured to associate the textual transcript with at least one action to be performed;a monitoring system comprising:a control module configured to check whether the textual transcript and/or the action to be performed is consistent if and only if:a) the textual transcript and/or the action to be performed is consistent with the expected syntax,b) the textual transcript and/or the action to be performed is consistent with the expected lexical field, andc) the textual transcript and/or the action to be performed is consistent with the current context,a module for generating an associated command only if no inconsistencies are detected.