CN115315050A - Rhythm control system of intelligent illumination - Google Patents

Rhythm control system of intelligent illumination Download PDF

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Publication number
CN115315050A
CN115315050A CN202210812365.9A CN202210812365A CN115315050A CN 115315050 A CN115315050 A CN 115315050A CN 202210812365 A CN202210812365 A CN 202210812365A CN 115315050 A CN115315050 A CN 115315050A
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signal
rhythm
module
display
sound
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Inventor
叶奇峰
徐卫洪
刘冬
蔡天晨
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Zhejiang Eboy High Tech Technology Co ltd
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Zhejiang Eboy High Tech Technology Co ltd
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/105—Controlling the light source in response to determined parameters
    • H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
    • H05B47/12—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings by detecting audible sound
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/36—Accompaniment arrangements
    • G10H1/40—Rhythm
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/031—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal
    • G10H2210/076—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal for extraction of timing, tempo; Beat detection
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/375—Tempo or beat alterations; Music timing control
    • G10H2210/391—Automatic tempo adjustment, correction or control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention relates to the lighting control technology and discloses an intelligent lighting rhythm control system.A power supply module of the intelligent lighting rhythm control system provides power to a sound acquisition module, an audio analysis module, a display control module and a display module; the method is characterized in that: the sound acquisition module receives the audio signal, processes the received audio signal and transmits the processed signal to the audio analysis module and the display control module; the audio analysis module analyzes the received audio signals and outputs signals to the display control module, and the display control module performs display rhythm adjustment on the received signals and transmits the adjusted signals to the display module for display. The lighting control system designed by the invention can realize high-quality rhythm acquisition and display of music rhythm light in a wide volume range; the intelligent lighting system is adaptive to capture and respond to sounds with different volumes in real time and accurately, and the intelligent lighting system designed by the invention is strong in rhythm sense and good in experience sense.

Description

Rhythm control system of intelligent illumination
Technical Field
The invention relates to an intelligent lighting technology, in particular to a rhythm control system for intelligent lighting.
Background
With the technological progress and the improvement of living standard, the demand of people for quality life is increasingly rising. People find that the light can play a role in creating atmosphere by adjusting the color, brightness and the like of the light besides providing a lighting function. Since various lighting systems aiming at rendering atmosphere appear in the market, originally simple lighting light begins to become colorful and gorgeous. Among various atmosphere lighting technologies, there is an atmosphere lighting technology called a light music rhythm, which has a great influence on creating an atmosphere and improving quality of life of people. The lighting system adopting the lighting control technology usually generates regular changes, including brightness changes, color changes and the like, along with the changes of background music.
Meanwhile, in the prior art, the transition of light changing along with rhythm is not natural enough, and the phenomena of light jumping, flickering and the like exist; the display of the light color is not bright enough, the change between different light sources is not natural, and the light color switching is sharp. Such as the patent name, a musical rhythm display system; patent application No.: CN201910326775.0, which adopts fixed hardware to collect sound information in the environment, the sound pickup effect is poor.
Disclosure of Invention
The invention provides a rhythm control method and system for intelligent illumination, aiming at the problems that in the prior art, fixed hardware is adopted to collect sound information in an environment, the pickup effect is poor, the pickup and display effects of sound are inconsistent in different occasions with different distances from a sound source and the light experience is poor in specific application.
In order to solve the technical problems, the invention is solved by the following technical scheme:
the intelligent lighting rhythm control system comprises a sound acquisition module, an audio analysis module, a display control module, a power supply module and a display module; the power supply module provides power to the sound acquisition module, the audio analysis module, the display control module and the display module; the sound collection module receives the audio signal, processes the received audio signal and transmits the processed signal to the audio analysis module and the display control module; the audio analysis module analyzes the received audio signal and outputs a signal to the display control module, and the display control module adjusts the display rhythm of the received signal and transmits the adjusted signal to the display module for display;
the sound collection module comprises a sound pickup and amplification unit and a volume control unit; the sound pickup and operational amplifier unit is used for converting the audio signal into a voltage signal, filtering and operational amplifying the converted voltage signal, and transmitting the processed signal to the volume control unit; the volume control unit is used for judging and adjusting the received signals in real time.
Preferably, the display control module comprises a rhythm control unit, and the rhythm control unit comprises acquisition of rhythm signals; acquiring a rhythm signal Rn in an ascending mode, a descending mode or a bilateral mode, and acquiring a rhythm signal Rn =1 when the rhythm signal Rn accords with a conditional formula 1; otherwise, the rhythm signal Rn =0 is not acquired;
Figure BDA0003739727290000021
wherein yn is the signal of sound collection, Y refR n is a comparison reference value of the sound collection signal, and A1 is a rhythm comparison limit value.
The sound collection and operational amplification unit is used for collecting external audio signals; the collected audio signals are processed by an operational amplifier, and the signals after the operational amplifier are yn. Gain adjustment is carried out on the signal Yn after Yn processing, and the output signal Yn after the operational amplifier processing of the sound acquisition module is adjusted; the adjustment of the gain is judged by comparing the signal Yn after the output processing of the operational amplifier with a comparison threshold value so as to determine the adjustment mode of the gain; the gain adjustment mode comprises gain reduction, gain improvement and gain invariance;
when Y is n ≥Y limitH Then yn = f (xn)/c, the gain decreases;
when Y is n ≤Y limitL If yes, then yn = f (xn) × c, gain is increased;
when Y is limitL <Y n <Y limitH If yes, yn = f (xn), and the gain is unchanged;
wherein xn is the original sound signal; y is limitH And Y limitL An upper limit judgment threshold and a lower limit judgment threshold which are respectively controlled by the processing signal Yn and are used for gain adjustment; c is a number, data list or data matrix greater than 1.
Preferably, the display control unit further includes noise reduction processing of the rhythm signal; the signal noise reduction processing mode is to compare and judge the signal Yn after the operational amplifier output processing with a comparison threshold value, so as to perform noise reduction processing:
when Yn is<Y refN If so, judging the signal to be a noise signal, carrying out noise reduction processing on the noise signal and providing a signal output Rn =0 in a noise mode;
when the rhythm control system is in a noise mode and Yn is more than or equal to Y NoiseExit If so, recovering the acquisition Rn =1 of the incoming rhythm signal;
wherein, Y refN Threshold value, Y, is determined for noise NoiseExit Threshold value for rhythm acquisition of incoming noise signal, and Y NoiseExit >Y refN 。
Preferably, the way of comparing and judging the signal Yn after the operational amplifier output processing with the comparison threshold includes a way of averaging n consecutive data, a way of weighted averaging n consecutive data, or a way of percentage exceeding the comparison limit data.
Averaging n consecutive data; then Yn = Avg (y 1, y2, \8230;, yn), where N =1,2, \8230;, N;
taking the weighted average of the continuous n data; then Yn = a x Y (n-1) + b x Yn, where a, b e (0 1), a + b =1; n =1,2 \ 8230n;
and if the data percentage exceeding the comparison limit value is taken, the following steps are carried out:
1) Equivalent to Y n ≥Y REFH Percentages greater than or equal to or less than the comparison limits may be taken, such as:
Figure BDA0003739727290000041
or
Figure BDA0003739727290000042
Figure BDA0003739727290000043
Wherein M =1,2, \8230, N, a ∈ (0 1), b ∈ (0 1); more preferably, a e (0.4), b e (0.6) can be taken
2) Likewise, Y equivalent can be obtained in a manner similar to that of 1) above n ≤Y REFL Or Y is REFL <Y n <Y REFH The expression of (1).
Preferably, the display control unit further comprises rhythm acquisition of the distinctive sound signal; the distinctive sound signal includes a sound signal that continuously and smoothly fluctuates, a fluctuating sound signal that continuously and smoothly rises, and a fluctuating sound signal that continuously and smoothly falls.
Preferably, the acquisition of the rhythm signal includes time domain acquisition, frequency domain acquisition or time-frequency domain fusion acquisition.
Preferably, the sound collection module further comprises a data conversion unit, which performs data conversion and data compression processing on the processed signals,
zn＝d*log a yn；
wherein d is a numerical coefficient, and 1-a is less than or equal to 10.
Preferably, the display mode of the display unit comprises a point light source display and/or a linear light source display; point-like light sources display through brightness or color variations; linear light sources are shown by brightness or color change or length change of the light source.
Due to the adoption of the technical scheme, the invention has the remarkable technical effects that:
the invention can quickly make rhythm identification and response and greatly improve the accuracy of rhythm acquisition;
according to the invention, through a self-adaptive algorithm of sound collection, accurate rhythm identification and response in a wide volume range can be realized;
according to the invention, noise reduction processing and characteristic sound signal processing are carried out on the collected rhythm, so that adaptive rhythm is displayed, and the experience effect of light is good;
the lighting system designed by the invention can restore sound characteristic information such as music rhythm, melody and the like, reproduce the environmental atmosphere adaptive to music expression emotion in a light form and create high-quality light atmosphere.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Fig. 2 is a schematic view of a sound collection module of the present invention.
Fig. 3 is a schematic view of embodiment 6 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
The intelligent lighting rhythm control system comprises a sound acquisition module, an audio analysis module, a display control module, a power supply module and a display module; the power supply module provides power to the sound acquisition module, the audio analysis module, the display control module and the display module; the sound collection module receives the audio signal, processes the received audio signal and transmits the processed signal to the audio analysis module and the display control module; the audio analysis module analyzes the received audio signal and outputs a signal to the display control module, and the display control module adjusts the display rhythm of the received signal and transmits the adjusted signal to the display module for display;
the sound collection module comprises a pickup and operational amplifier unit and a volume control unit; the sound pickup and operational amplifier unit is used for converting the audio signal into a voltage signal, filtering and operational amplifying the converted voltage signal, and transmitting the processed signal to the volume control unit; the volume control unit is used for judging and adjusting the received signals in real time.
Example 2
On the basis of the embodiment 1, the display control module of the embodiment comprises a rhythm control unit, wherein the rhythm control unit comprises acquisition of rhythm signals; acquiring a rhythm signal Rn in an ascending mode, a descending mode or a bilateral mode, and when the rhythm signal Rn meets the conditional formula 1; acquiring a rhythm signal Rn =1; otherwise, the rhythm signal Rn =0 is not acquired;
Figure BDA0003739727290000061
wherein yn is the signal of sound collection, Y refR n is a signal comparison reference value of sound collection, and A1 is a rhythm comparison limit value.
The acquisition of the rhythm signal comprises the acquisition of a time domain mode, a frequency domain mode or a time-frequency domain fusion mode.
The rhythm acquisition signal can be converted into y through a frequency domain FFT n；
Figure BDA0003739727290000071
An = FFT (yn) or DFT (yn);
Sn＝{sn 1 ，sn 2 ，…sn M }；
in the case of time-domain and frequency-domain fusion, it can be expressed as y T&F n：
y T&F n＝d 1 n*yn+d 2 n*y FFT n
Wherein An is the frequency domain analysis value of the processed signal, sn is the sound loudness curve coefficient, sn 1 ，sn 2 ，…sn M The loudness curve coefficient of each frequency band; cn is the quadratic coefficient of the frequency domain response, y T&F n is a signal obtained by fusing a time domain and a frequency domain, and is equivalent to the signal yn for acquiring rhythm information.
Example 3
On the basis of the above embodiment, the sound collection module of the embodiment adjusts the volume through a self-adaptive algorithm, and the sound pickup and operational amplifier unit is used for collecting external audio signals; the collected audio signals are processed by an operational amplifier, and the signals after the operational amplifier are yn. Gain adjustment is carried out on the signal Yn after Yn processing, and the output signal Yn after the operation and amplification processing of the sound acquisition module is adjusted; the adjustment of the gain is judged by comparing the signal Yn after the output processing of the operational amplifier with a comparison threshold value so as to determine the adjustment mode of the gain; the gain adjustment mode comprises gain reduction, gain improvement and gain invariance;
when Y is n ≥Y limitH Then yn = f (xn)/c, the gain decreases;
when Y is n ≤Y limitL Then yn = f (xn) × c, the gain increases;
when Y is limitL <Y n <Y limitH If yes, yn = f (xn), and the gain is unchanged;
wherein xn is the original sound signal; y is limitH And Y limitL An upper limit judgment threshold and a lower limit judgment threshold which are respectively controlled by the processing signal Yn and are used for gain adjustment; c is a number, data list or data matrix greater than 1.
The information after the gain adjustment process needs to have a hysteresis interval, that is: for convenience of description, the processed signal after gain adjustment is defined as:
Figure BDA0003739727290000081
when Y is n1 ≥Y limitH ；
Figure BDA0003739727290000082
When Y is n1 ≤Y limitL ；
Then, Y' n needs to be satisfied 1 ＞Y limitL ，Y’n 2 ＜Y limitH 。
Example 4
On the basis of the above embodiment, the display control unit of the embodiment further includes noise reduction processing of the rhythm signal; the signal noise reduction processing mode is to compare and judge the signal Yn after the operational amplifier output processing with a comparison threshold value, so as to perform noise reduction processing:
when Yn is<Y refN If so, judging the signal to be a noise signal, carrying out noise reduction processing on the noise signal and providing a signal output Rn =0 in a noise mode;
when the rhythm control system is in the noise mode and Yn is more than or equal to Y NoiseExit If so, recovering the acquisition Rn =1 of the incoming rhythm signal;
wherein, Y refN Threshold value, Y, is determined for noise NoiseExit Threshold value for rhythm acquisition of incoming noise signal, and Y NoiseExit >Y refN 。
The comparison and judgment mode of the signal Yn after the operational amplifier output processing and the comparison threshold value comprises a mode of averaging n continuous data, a mode of weighted averaging the n continuous data or a mode of data percentage exceeding a comparison limit value.
Averaging n consecutive data; then Yn = Avg (y 1, y2, \8230;, yn), where N =1,2, \8230;, N;
taking the weighted average of the continuous n data; then Yn = a x Y (n-1) + b x Yn, where a, b e (0 1), a + b =1; n =1,2 \8230N;
and taking the data percentage exceeding the comparison limit value, then:
1) Equivalent to Y n ≥Y REFH Percentages greater than or equal to or less than the comparison limits may be taken, such as:
Figure BDA0003739727290000091
or
Figure BDA0003739727290000092
Figure BDA0003739727290000093
Wherein M =1,2, \8230, N, a epsilon (0), b epsilon (0 1); more preferably, a e (0.4), b e (0.6) can be taken
2) Likewise, Y equivalent can be obtained in a manner similar to that of 1) above n ≤Y REFL Or Y is REFL <Y n <Y REFH The expression of (1).
Example 5
On the basis of the above embodiment, the display control unit of the embodiment further comprises processing the distinctive sound signal; the distinctive sound signal includes a sound signal that continuously and smoothly fluctuates, a fluctuating sound signal that continuously and smoothly rises, a fluctuating sound signal that falls, and the like.
Qualifying for a sound signal
Figure BDA0003739727290000094
And Yn is more than or equal to Y truesound When the current is in the normal state; if the characteristic sound signal is judged, adjusting the rhythm comparison threshold value to be A2, and collecting the sound rhythm; wherein Y is truesound Determining a threshold for the presence of sound, Y truesound >Y refN 。
And when the rhythm control system is in the characteristic sound processing mode and collects a relatively obvious rhythm signal, the rhythm control system is restored to enter the normal sound rhythm collection mode, and the rhythm judgment threshold value is adjusted to be A1.
In particular, the more pronounced rhythm signal may be expressed as:
obtaining the rhythm signal R according to the formula 1 under a larger comparison threshold A3 A3 n =1. Wherein | A3| > | A1|>|A2|；
Or a rhythm signal Rn =1 is frequently acquired at the comparison threshold A1, i.e. the comparison threshold A1 is set to zero
Figure BDA0003739727290000101
Wherein b e (0.1) is preferable, and b e (0.4) is preferable.
Example 6
On the basis of the above embodiment, the sound collection module of this embodiment further includes a data conversion unit, which performs data conversion and data compression processing on the processed signal,
zn＝d*log a yn；
wherein d is a numerical coefficient, and 1 is formed by the woven fabrics with a being less than or equal to 10.
Example 7
On the basis of the above embodiment, the lamp strip display control of the embodiment essentially adjusts the on/off and brightness of the lamp bead or the light source.
The human eyes have the automatic light adjusting capability, so that the human eyes can adapt to a wide range of living environments. Specifically, for example, adaptive adjustment of the brightness of the lamp light, response to different spectral frequencies (colors), and a certain visual residual of quantized signal acquisition are required, and when the display control of the lamp light is actually performed, the influence of these factors on the vision needs to be considered, so as to provide higher quality. Essentially by regulating
And (3) adjusting the brightness of the lamp light: carrying out gradual lightening and gradual extinguishing treatment in a line-dividing mode;
and (3) switching the colors of the lights: the color calculation module outputs signals which are processed by the light display unit and then are displayed on the display unit; to avoid visual overlay distortion caused by fast color switching, the color display refresh frequency and the color switchable state need to be controlled.
The display mode is as follows: point-like light source display: mainly by brightness or color variations; the linear light source displays: this can be done either by brightness or by a change in color, or by a change in length.

Claims (9)

1. The intelligent lighting rhythm control system comprises a sound acquisition module, an audio analysis module, a display control module, a power supply module and a display module; the power supply module provides power to the sound acquisition module, the audio analysis module, the display control module and the display module; the method is characterized in that: the sound collection module receives the audio signal, processes the received audio signal and transmits the processed signal to the audio analysis module and the display control module; the audio analysis module analyzes the received audio signal and outputs a signal to the display control module, and the display control module adjusts the display rhythm of the received signal and transmits the adjusted signal to the display module for display;
the sound collection module comprises a sound pickup and amplification unit and a volume control unit; the sound pickup and operational amplifier unit is used for converting the audio signal into a voltage signal, filtering and operational amplifying the converted voltage signal, and transmitting the processed signal to the volume control unit; the volume control unit is used for judging and adjusting the received signals in real time.
2. The system of claim 1, wherein the display control module comprises a cadence control unit that includes acquisition of a cadence signal; acquiring a rhythm signal Rn in an ascending mode, a descending mode or a bilateral mode, and acquiring a rhythm signal Rn =1 when the rhythm signal Rn accords with a conditional formula 1; otherwise, the rhythm signal Rn =0 is not acquired;
Figure FDA0003739727280000011
wherein yn is the signal of sound collection, Y refR n is a comparison reference value of the sound collection signal, and A1 is a rhythm comparison limit value.
3. The rhythm control system of intelligent illumination according to claim 1, characterized in that the sound collection module adjusts the volume through an adaptive algorithm, and the sound pickup and operational amplifier unit is used for collecting external audio signals; carrying out operational amplifier processing on the collected audio signals, wherein the signals after the operational amplifier processing are yn; gain adjustment is carried out on the signal Yn after Yn processing, and the output signal Yn after the operational amplifier processing of the sound acquisition module is adjusted; the adjustment of the gain is judged by comparing the signal Yn after the output processing of the operational amplifier with a comparison threshold value so as to determine the adjustment mode of the gain; the gain adjustment mode comprises gain reduction, gain improvement and gain invariance;
when Y is n ≥Y limitH Then yn = f (xn)/c, the gain decreases;
when Y is n ≤Y limitL If yes, then yn = f (xn) × c, increasing the gain;
when Y is limitL <Y n <Y limitH If yes, yn = f (xn), and the gain is unchanged;
wherein xn is the original sound signal; y is limitH And Y limitL An upper limit judgment threshold and a lower limit judgment threshold which are respectively controlled by the processing signal Yn and are used for gain adjustment; c is largeA value at 1, a data list or a data matrix.
4. The rhythm control system of smart lighting according to claim 2, wherein the display control unit further includes noise reduction processing of the rhythm signal; the signal noise reduction processing mode carries out noise reduction processing by comparing the signal Yn after the operational amplifier output processing with a noise judgment threshold value:
when Yn is<Y refN If so, judging the signal to be a noise signal, carrying out noise reduction processing on the noise signal and providing a signal output Rn =0 in a noise mode;
when the rhythm control system is in the noise mode and Yn is more than or equal to Y NoiseExit Then, the acquisition of the rhythm signal Rn =1 is recovered;
wherein, Y refN To determine the threshold value for noise, Y NoiseExit Threshold value for rhythm acquisition of incoming noise signal, and Y NoiseExit >Y refN 。
5. The system of any one of claims 3 or 4, wherein the comparing and determining of the signal Yn after the operational amplifier output processing with the decision threshold comprises averaging n consecutive data, weighted averaging n consecutive data, or exceeding a percentage of comparison limit data.
6. The system of claim 2, wherein the display control unit further comprises rhythm acquisition of the distinctive sound signal; the distinctive sound signal includes a sound signal that continuously and smoothly fluctuates, a fluctuating sound signal that continuously and smoothly rises, and a fluctuating sound signal that continuously and smoothly falls.
7. The system of claim 2, wherein the acquisition of the cadence signal comprises time-domain acquisition, frequency-domain acquisition, or time-frequency-domain fusion acquisition.
8. The rhythm control system of intelligent lighting according to claim 1, wherein the sound collection module further comprises a data conversion unit for performing data conversion and data compression processing on the processed signals,
zn＝d*log a yn；
wherein d is a numerical coefficient, and 1 is formed by the woven fabrics with a being less than or equal to 10.
9. The system of claim 1, wherein the display mode of the display unit comprises a point light source display and/or a linear light source display; the point-like light source display is changed through brightness or color; linear light sources are shown by brightness changes, color changes, or length changes of the light source.
CN202210812365.9A 2022-07-11 2022-07-11 Rhythm control system of intelligent illumination Pending CN115315050A (en)

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Application Number Priority Date Filing Date Title
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