Multichannel Avionics Communication Monitoring Using Speech Recognition
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Solution Overview
Problem
Aircraft pilots are limited to monitoring only a single voice communication frequency, missing important communications on other frequencies, which can lead to situational awareness issues and safety concerns.
Innovation Solution
Implementing a multichannel avionics communication system using software-defined radios and speech recognition technology to monitor multiple frequencies, alerting the pilot to relevant communications containing trigger words on frequencies not actively selected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a pilot monitors only a single voice communication frequency, then the radio system remains simple and easy to operate, but the pilot misses important communications on other frequencies
Solution Approach 1:
The system segments the monitoring task by assigning different functions to different channels: one radio channel is tuned and monitored by the pilot for active communication, while multiple other channels are monitored automatically by the computer system through speech recognition. This division allows comprehensive monitoring without requiring the pilot to manually monitor each frequency.
Solution Approach 2:
The computer system acts as an intermediary between the multiple radio channels and the pilot. It receives audio inputs from multiple frequencies, processes the speech content through recognition algorithms, and presents relevant information to the pilot in a manageable format, thereby filtering and organizing the information flow.
2Adaptability or versatility
If multiple radios are equipped on the aircraft, then more frequencies can be monitored, but the pilot is still limited to listening only to the frequency that a particular radio is tuned to
Solution Approach 1:
The computer system performs self-service by automatically tuning to multiple frequencies, capturing audio streams, and analyzing speech content without requiring pilot intervention. The system independently manages the complexity of multiple radio channels while providing simplified information to the pilot through alerts and notifications.
Solution Approach 2:
The patent replaces the mechanical approach of manually switching between multiple radio frequencies with an electronic/digital solution. The computer system uses software-controlled radio tuning and automated speech recognition to monitor multiple channels, substituting manual radio operation with automated electronic processing.
3Reliability
If the pilot manually monitors multiple frequencies, then all communications can be detected, but the pilot becomes distracted from primary flying tasks
Solution Approach 1:
The system performs preliminary action by continuously monitoring and pre-processing audio from multiple channels in the background before pilot attention is needed. Speech recognition algorithms analyze incoming communications in advance, and only when relevant information is detected does the system alert the pilot, thereby preparing information ahead of time without requiring continuous pilot attention.
Solution Approach 2:
The system implements feedback by providing selective alerts to the pilot only when speech matching predetermined criteria is detected on monitored channels. This feedback mechanism filters out irrelevant information and presents only significant communications, allowing the pilot to maintain focus on primary tasks while staying informed of important developments.
Data Source
AI summary
Systems and methods for aviation communication monitoring using speech recognition are provided. In one embodiment, a method for multichannel avionics communication is provided. The method comprises: configuring a software defined radio to generate digitized audio data for a plurality of voice communication channels; audibly reproducing voice communication received over a first channel of the plurality of voice communication channels; applying a trigger word speech recognition algorithm to at least a second channel of the plurality of voice communication channels to detect a message containing a trigger word; and when a trigger word is detected, storing a communication containing the trigger word and generating an alert.