Aircraft Audio Panel Routing With Single-Knob Control
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Solution Overview
Problem
Conventional aircraft audio panels are cumbersome due to numerous knobs for adjusting and routing audio communications, leading to space inefficiency and requiring pilots to memorize preset intercom isolation modes, which complicates the selection and adjustment of audio characteristics like volume and squelch, especially in low-light conditions.
Innovation Solution
An aircraft audio panel with integrated controls, including a rotatable audio controller knob and electronic display indicators, allows for intuitive selection and adjustment of audio inputs and outputs, providing clear visual feedback and dynamic routing capabilities without the need for memorizing preset modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple separate knobs are used for each audio input/output control, then each control can be adjusted independently, but the panel space requirement increases and device complexity increases
Solution Approach 1:
The patent combines multiple separate control knobs into a single integrated control unit. The audio panel includes a first control for selecting audio inputs/outputs and a second control for adjusting audio characteristics, both integrated into one control mechanism rather than using separate knobs for each function. This merging reduces the overall panel space required while maintaining independent adjustability of each control parameter.
Solution Approach 2:
The integrated control unit performs multiple functions: it can select different audio inputs and outputs, adjust volume levels, modify squelch settings, and change other audio characteristics. By making the control unit universal and multi-functional, the patent eliminates the need for multiple dedicated knobs, thereby reducing panel space while preserving full control capability over all audio parameters.
2Productivity
If preset routing configurations are used, then routing can be quickly selected, but pilots must memorize preset intercom isolation modes and reference materials are required
Solution Approach 1:
The audio panel provides self-service routing configuration by automatically displaying the current routing state and allowing direct modification without requiring pilots to memorize preset modes or consult reference materials. The system serves itself by presenting clear visual feedback about the current configuration and enabling intuitive adjustments, eliminating the cognitive burden of memorization while maintaining quick routing selection capability.
Solution Approach 2:
The patent incorporates visual feedback mechanisms that display the current audio routing configuration, selected inputs/outputs, and audio characteristic settings on a display element. This feedback allows pilots to see the current state without memorization and makes adjustments intuitive, reducing the complexity associated with preset mode memorization while maintaining fast routing selection through direct visual confirmation and modification.
3Measurement precision
If multiple separate controls are used for audio characteristic adjustment, then precise control is achieved, but the number of controls increases and panel space is consumed
Solution Approach 1:
The patent merges multiple separate control functions into a single integrated control unit that can precisely adjust various audio characteristics. The second control within the integrated unit is capable of modifying volume, squelch, and other audio parameters with the same precision that would be achieved by separate controls, while reducing the total number of physical controls required on the panel.
Data Source
AI summary
An aircraft audio panel includes a plurality of audio inputs each configured for receiving audio communications from an audio source; a plurality of audio outputs each configured for outputting the audio communications to audio equipment in the aircraft; selecting circuitry for selecting the audio communications between the audio inputs and the audio outputs; a single selector for permitting selection of one of the audio inputs or audio outputs for adjustment; and a single audio controller for permitting adjustment of an audio characteristic of the selected audio input or audio output. The audio panel may also include an audio characteristic indicator for indicating an audio characteristic of the selected audio input or audio output. The selecting circuitry may also implement a routing mode in which a user may first initiate the routing mode, then select one of the audio inputs for routing, and then select any one of the audio outputs for receiving audio communications from the selected audio input.