Sound-controlled gas control system, method and device

Abstract

The present invention discloses a sound-controlled gas control system, used to adjust the height change of the generated flame. The system includes an audio module, a transformation analysis module, a driving module and at least one proportional valve. The audio module is suitable for preprocessing discrete audio data and generating complex-number data according to the result of the preprocessing. The transformation analysis module is suitable for performing a Fourier transformation according to the complex-number data to generate a plurality of frequency domain data and performing spectrum analysis on the frequency domain data to generate pulse width modulation data. The driving module is suitable for receiving the pulse width modulation data and converting to an opening control signal according to the pulse width modulation data. The proportional valve has a gas valve and is suitable for adjusting an opening and closing state of the gas valve according to the opening control signal.

1 . A sound-controlled gas control system for adjusting the height change of generated flame, comprising:
 an audio module, suitable for preprocessing discrete audio data and generating complex-number data according to the result of the preprocessing;   a transformation analysis module, suitable for performing a Fourier transformation according to the complex-number data to generate a plurality of frequency domain data and performing spectrum analysis on the frequency domain data to generate pulse width modulation data;   a driving module, suitable for receiving the pulse width modulation data and converting to an opening control signal according to the pulse width modulation data; and   at least one proportional valve, including a gas valve and suitable for adjusting an opening and closing state of the gas valve according to the opening control signal.   
     
     
         2 . The sound-controlled gas control system according to  claim 1 , wherein the preprocessing comprises following steps:
 performing a framing procedure on the audio data to generate nth frame data;   performing a windowing process on the nth frame data if n is not equal to the last frame; and   performing a zero-padding operation on the last frame data and then performing the windowing process on the last frame data if n is equal to the last frame.   
     
     
         3 . The sound-controlled gas control system according to  claim 1 , wherein the spectrum analysis comprises following steps:
 extracting an amplitude value and a phase value of at least one specific frequency segment in the frequency domain data, and generating control information according to the amplitude value and the phase value; and   generating the pulse width modulation data according to the control information and by using a timer.   
     
     
         4 . The sound-controlled gas control system according to  claim 3 , wherein the specific frequency segment is below 150 Hz. 
     
     
         5 . The sound-controlled gas control system according to  claim 4 , wherein the at least one specific frequency segment includes a plurality of the specific frequency segments, the at least one proportional valve includes a plurality of the proportional valves, and the transformation analysis module controls the opening and closing states of the gas valves of the different proportional valves according to the pulse width modulation data respectively corresponding to the specific frequency segments. 
     
     
         6 . The sound-controlled gas control system according to  claim 5 , wherein the specific frequency segments are extracted from the frequency domain data in equal proportion division. 
     
     
         7 . The sound-controlled gas control system according to  claim 1 , wherein the audio module is suitable for receiving a digital audio signal and generating the audio data according to the digital audio signal, the sound-controlled gas control system further includes an audio amplifier suitable for playing music according to the digital audio signal, and the rhythm change of the music is synchronized with the height change of the flame. 
     
     
         8 . A sound-controlled gas control method, comprising following steps:
 preprocessing discrete audio data and generating complex-number data according to the result of the preprocessing;   performing a Fourier transformation according to the complex-number data to generate a plurality of frequency domain data;   performing spectrum analysis on the frequency domain data to generate pulse width modulation data;   converting to an opening control signal according to the pulse width modulation data; and   
       adjusting an opening and closing state of a gas valve of a proportional valve according to the opening control signal. 
     
     
         9 . The sound-controlled gas control method according to  claim 8 , wherein the preprocessing comprises following steps:
 performing a framing procedure on the audio data to generate nth frame data;   performing a windowing process on the nth frame data if n is not equal to the last frame; and   performing a zero-padding operation on the last frame data and then performing the windowing process on the last frame data if n is equal to the last frame; or the spectrum analysis comprises following steps:
 extracting an amplitude value and a phase value of at least one specific frequency segment in the frequency domain data, and generating control information according to the amplitude value and the phase value; and 
   generating the pulse width modulation data according to the control information and by using a timer.   
     
     
         10 . A sound-controlled gas control device, wherein the sound-controlled gas control device is used as a carrier for executing the sound-controlled gas control system according to  claim 1 .