Dynamic fire system having a flow control apparatus for generating a control signal based on an audio signal
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Solution Overview
Problem
Conventional flow controllers fail to accurately modulate the flame of fire systems to match the rhythm of music compositions with multiple instruments and voices, as they rely on volume changes rather than rhythm, resulting in an inability to deliver the music's rhythm to the audience.
Innovation Solution
A flow control apparatus and signal generation device that converts audio signals into direct current (DC) control signals, using a module comprising an audio receiving module, filter rectifier module, and proportional valve control signal generation module, to adjust the flow of flammable gas through a proportional valve, allowing the flame to respond to the rhythm of the music.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional flow controller is used to control flame based on audio volume, then the flame can respond to loud music, but it cannot accurately represent the rhythm of music compositions with multiple instruments and voices
Solution Approach 1:
The audio signal is segmented into multiple frequency bands using band-pass filters, allowing the system to analyze different components of the music separately. This segmentation enables precise rhythm detection by focusing on specific frequency ranges that carry rhythmic information, rather than treating the entire audio spectrum as a single volume signal.
Solution Approach 2:
The patent introduces an intermediary signal processing chain including band-pass filters, rectifiers, and low-pass filters that transform the complex audio signal into a simplified control signal. This intermediary processing stage extracts rhythmic patterns while filtering out irrelevant information, achieving accurate rhythm representation without directly controlling the flame based on raw audio volume.
2Productivity
If the flame is controlled based on volume changes, then the flame intensity can follow loud passages, but the rhythm of music with multiple instruments and voices cannot be delivered to the audience
Solution Approach 1:
The patent replaces simple volume-based mechanical control with an electronic signal processing system. Instead of directly mapping audio volume to flame control, the system uses electronic filters and rectifiers to extract rhythmic patterns, substituting a sophisticated electronic control mechanism for simple volume-based control to achieve effective rhythm delivery.
Solution Approach 2:
The system employs periodic rectification and filtering operations that synchronize with the rhythmic structure of music. By using rectifiers to convert alternating audio signals into unidirectional control signals and low-pass filters to smooth these signals, the system creates periodic flame responses that accurately follow the rhythmic patterns of the music.
3Loss of information
If a simple volume-based control is used, then the control system remains simple, but it cannot show the rhythm change of music compositions
Solution Approach 1:
The patent extracts rhythmic information from the audio signal by taking out specific frequency components using band-pass filters. This extraction process isolates the rhythmic elements from the full audio spectrum, preserving rhythm information while discarding irrelevant data through selective filtering and rectification.
Solution Approach 2:
The system changes parameters of the audio signal through filtering, rectification, and low-pass filtering operations. These parameter transformations convert the complex audio waveform into a simplified control signal that preserves rhythmic timing information while changing the signal's frequency content and amplitude characteristics to suit flame control requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables a dynamic flame that accurately corresponds to the rhythm of the music, providing a more engaging and immersive experience by synchronizing the flame's height and intensity with the audio input, effectively conveying the rhythm of music with multiple instruments and voices.
Implementation Method 1
The filter rectifier module is electrically connected to the audio receiving module and may be used for filtering the audio signal to generate at least one DC audio signal
Implementation Method 2
the proportional valve adjusting opening ratio of the proportional valve based on the DC control signal
Data Source
AI summary
A flow control apparatus includes a flow control signal generation device for generating a DC control signal based on an audio signal and at least one proportional valve. The flow control signal generation device includes an audio receiving module, a filter rectifier module, a microprocessor and a proportional valve control signal generation module. The filter rectifier module generates at least one DC audio signal by filtering the audio signal provided by the audio receiving module. The microprocessor generates a plurality of period attenuated values based on the DC audio signal. The proportional valve control signal generation module filters the audio signal, attenuates the signal based on the period attenuated values, and then performs filtering and rectification processing to generate the DC control signal, such that the proportional valve may control the opening ratio of the proportional valve based on the DC control signal.