CN209182812U - The advertisement machine of environment adjustment volume can be adapted to automatically - Google Patents
The advertisement machine of environment adjustment volume can be adapted to automatically Download PDFInfo
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- CN209182812U CN209182812U CN201920066675.4U CN201920066675U CN209182812U CN 209182812 U CN209182812 U CN 209182812U CN 201920066675 U CN201920066675 U CN 201920066675U CN 209182812 U CN209182812 U CN 209182812U
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Abstract
The utility model relates to e-advertising machine technology, solve the problems, such as that the volume of existing advertisement machine cannot change with the variation of environmental volume.Technical solution is summarized are as follows: can adapt to the advertisement machine of environment adjustment volume automatically, including power module, micro controller module, audio frequency power amplifier, loudspeaker, microphone, analog-to-digital conversion module and digital signal processing module, the ad sound signal of micro controller module output is played through audio frequency power amplifier drive the speaker, the environmental sound signal of microphone acquisition simultaneously is input to digital signal processing module through analog-to-digital conversion, the ad sound signal finally played is calculated according to the data got for digital signal processing module, and the ad sound signal finally played is removed from environmental sound signal and obtains environmental noise signal, the ad sound signal that micro controller module is finally played according to environmental noise Signal Regulation.Beneficial effect is: the utility model can automatically adjust advertisement volume according to environmental noise, to the adaptable of environment.
Description
Technical field
The utility model relates to e-advertising machine technologies, the in particular to volume controlling technique of e-advertising machine.
Background technique
The state of a default can be arranged in the volume of existing e-advertising machine, cannot become with the variation of environmental volume
Change, bad adaptability.When environmental volume is larger, ad sound be can not hear clearly, and influence advertising results, when environmental volume is smaller,
The case where ad sound seems too big, offensive, for example advertisement machine occurred as soon as artificial destruction advertisement machine in elevator.
Utility model content
The utility model provides a kind of advertisement machine that can adapt to environment adjustment volume automatically, after corresponding existing program is added,
The problem of being able to solve the volume of existing advertisement machine cannot change with the variation of environmental volume.
To solve the above problems, the technical solution adopted in the utility model is:
The advertisement machine of environment adjustment volume, including power module, micro controller module, simulation input audio can be adapted to automatically
Power amplifier, loudspeaker, microphone, analog-to-digital conversion module one, analog-to-digital conversion module two and digital signal processing module, it is described
The simulation output end of micro controller module is connect with the signal input part of simulation input audio-frequency power amplifier, simulation input audio
The signal output end of power amplifier is connect with loudspeaker, the output end and micro controller module of the digital signal processing module
Input terminal connection, the input terminal of the analog-to-digital conversion module one connect with microphone, output end and digital signal processing module
Input terminal one connect, the signal output end of the input terminal of the analog-to-digital conversion module two and simulation input audio-frequency power amplifier
The input terminal two of connection, output end and digital signal processing module connects, the control signal output of the micro controller module
It is connect with the gain control end of simulation input audio-frequency power amplifier, the power module is for powering；
The microphone is for acquiring environmental sound signal；The analog-to-digital conversion module one is used to turn environmental sound signal
It is changed to digital signal and is output to digital signal processing module；The analog-to-digital conversion module two is used for simulation input audio power
The output signal of amplifier is converted to digital signal and is output to digital signal processing module；The digital signal processing module is used
In the signal according to input, the output signal that simulation input audio-frequency power amplifier is removed from environmental sound signal obtains environment
Noise signal, and environmental noise signal is output to micro controller module；The micro controller module is used for according to environmental noise
The gain of the volume control simulation input audio-frequency power amplifier of signal, and by preset ad sound signal to simulate letter
Number form be output to simulation input audio-frequency power amplifier；The simulation input audio-frequency power amplifier is used for drive the speaker
Sounding.
As advanced optimizing, the input terminal one of the output end of analog-to-digital conversion module one and digital signal processing module it
Between, between the output end of analog-to-digital conversion module two and the input terminal two of digital signal processing module and digital signal processing module
Output end and micro controller module input terminal between all use I2The connection of S bus.
As advanced optimizing, the micro controller module uses system level chip.
It further include display screen as advanced optimizing, the output end connection of the display screen and micro controller module.
The advertisement machine of environment adjustment volume, including power module, micro controller module, numeral input audio can be adapted to automatically
Power amplifier, loudspeaker, microphone, analog-to-digital conversion module one and digital signal processing module, the micro controller module
Digital output end is connect with the signal input part of numeral input audio-frequency power amplifier, the letter of numeral input audio-frequency power amplifier
Number output end is connect with loudspeaker, and the output end of the digital signal processing module and the input terminal of micro controller module connect,
The input terminal of the analog-to-digital conversion module one is connect with microphone, and the input terminal one of output end and digital signal processing module connects
It connects, the digital output end of the micro controller module and the input terminal two of digital signal processing module connect, the power module
For powering；
The microphone is for acquiring environmental sound signal；The analog-to-digital conversion module one is used to turn environmental sound signal
It is changed to digital signal and is output to digital signal processing module；The digital signal processing module be used for according to the signal of input and
The preset gain of numeral input audio-frequency power amplifier removes numeral input audio-frequency power amplifier from environmental sound signal
Output signal obtains environmental noise signal, and environmental noise signal is output to micro controller module；The micro controller module
For adjusting the volume of preset ad sound signal according to the volume of environmental noise signal, and will be after adjusting volume
Ad sound signal numeral input audio-frequency power amplifier and digital signal processing module are output in the form of digital signal；
The numeral input audio-frequency power amplifier is used for drive the speaker sounding, and gain is preset as steady state value.
As advanced optimizing, the input terminal one of the output end of analog-to-digital conversion module one and digital signal processing module it
Between, between the output end of digital signal processing module and the input terminal of micro controller module, the numeral output of micro controller module
Hold the input terminal two of digital signal processing module between and micro controller module digital output end and numeral input audio
I is all used between the signal input part of power amplifier2The connection of S bus.
As advanced optimizing, the micro controller module uses system level chip.
It further include display screen as advanced optimizing, the output end connection of the display screen and micro controller module.
Beneficial effect is:, can be according to the big of environmental noise after corresponding existing program is added in the advertisement machine of the utility model
The small advertisement volume to broadcasting automatically adjusts, to the adaptable of environment.
Detailed description of the invention
Fig. 1 is the system structure diagram of the utility model embodiment one.
Fig. 2 is the system structure diagram of the utility model embodiment two.
Specific embodiment
With reference to the accompanying drawings and examples, the technical solution of the utility model is further illustrated.
The technical solution of the utility model is:
When advertisement machine uses simulation input audio-frequency power amplifier, the advertisement machine of environment adjustment volume can be adapted to automatically,
Including power module, micro controller module, simulation input audio-frequency power amplifier, loudspeaker, microphone, analog-to-digital conversion module
One, analog-to-digital conversion module two and digital signal processing module, the simulation output end of micro controller module and simulation input audio function
The signal input part of rate amplifier connects, and the signal output end of simulation input audio-frequency power amplifier is connect with loudspeaker, number
The output end of signal processing module and the input terminal of micro controller module connect, the input terminal and microphone of analog-to-digital conversion module one
The input terminal one of connection, output end and digital signal processing module connects, the input terminal and simulation input of analog-to-digital conversion module two
The signal output end of audio-frequency power amplifier connects, and the input terminal two of output end and digital signal processing module connects, microcontroller
The control signal output of device module is connect with the gain control end of simulation input audio-frequency power amplifier, and power module is for supplying
Electricity；Microphone is for acquiring environmental sound signal；Analog-to-digital conversion module one is used to environmental sound signal being converted to digital signal
And it is output to digital signal processing module；Analog-to-digital conversion module two is used for the output signal of simulation input audio-frequency power amplifier
It is converted to digital signal and is output to digital signal processing module；Digital signal processing module is used for the signal according to input, from
The output signal that simulation input audio-frequency power amplifier is removed in environmental sound signal obtains environmental noise signal, and environment is made an uproar
Sound signal is output to micro controller module；Micro controller module is used for defeated according to the control simulation of the volume of environmental noise signal
Enter the gain of audio-frequency power amplifier, and preset ad sound signal is output to simulation input sound in the form of analog signal
Frequency power amplifier；Simulation input audio-frequency power amplifier is used for drive the speaker sounding.
When advertisement machine uses numeral input audio-frequency power amplifier, the advertisement machine of environment adjustment volume can be adapted to automatically,
Including power module, micro controller module, numeral input audio-frequency power amplifier, loudspeaker, microphone, analog-to-digital conversion module one
And digital signal processing module, the digital output end of micro controller module and the signal of numeral input audio-frequency power amplifier input
End connection, the signal output end of numeral input audio-frequency power amplifier are connect with loudspeaker, the output of digital signal processing module
End is connect with the input terminal of micro controller module, and the input terminal of analog-to-digital conversion module one is connect with microphone, output end and number
The input terminal one of signal processing module connects, the digital output end of micro controller module and the input terminal of digital signal processing module
Two connections, power module is for powering；Microphone is for acquiring environmental sound signal；Analog-to-digital conversion module one is used for ambient sound
Sound signal is converted to digital signal and is output to digital signal processing module；Digital signal processing module is used for the letter according to input
Number and the digital preset gain of input audio power amplifier, numeral input Audio power amplifier is removed from environmental sound signal
The output signal of device obtains environmental noise signal, and environmental noise signal is output to micro controller module；Micro controller module
For adjusting the volume of preset ad sound signal according to the volume of environmental noise signal, and will be after adjusting volume
Ad sound signal numeral input audio-frequency power amplifier and digital signal processing module are output in the form of digital signal；
Numeral input audio-frequency power amplifier is used for drive the speaker sounding, and gain is preset as steady state value.
The above-mentioned advertisement machine using simulation input audio-frequency power amplifier is advanced optimized, specifically may is that modulus turns
It changes the mold between the output end of block one and the input terminal one of digital signal processing module, the output end of analog-to-digital conversion module two and number
Between the input terminal two of signal processing module and the input terminal of the output end of digital signal processing module and micro controller module
Between can use I2The connection of S bus；I2S bus is exclusively used in the transmission of digital audio-frequency data, by by data and clock signal
Separation can be avoided the distortion induced by the time difference.Micro controller module can use system level chip；System level chip, i.e.,
SOC, integrated level are high, and when exploitation can save the time, using more convenient.Above-mentioned advertisement machine can also include display screen, display
Screen is connect with the output end of micro controller module,, can be from vision, the sense of hearing by the way that display is added for showing advertising information
Various aspects show advertising information.
The above-mentioned advertisement machine using numeral input audio-frequency power amplifier is advanced optimized, specifically may is that modulus turns
Change the mold between the output end of block one and the input terminal one of digital signal processing module, the output end of digital signal processing module with it is micro-
Between the input terminal of controller module, the input terminal two of the digital output end of micro controller module and digital signal processing module it
Between and micro controller module digital output end and numeral input audio-frequency power amplifier signal input part between all use
I2The connection of S bus；I2S bus is exclusively used in the transmission of digital audio-frequency data, by can be avoided data and clock signal separation
The distortion induced by the time difference.Micro controller module can use system level chip；System level chip, i.e. SOC, integrated level is high,
It can be saved the time when exploitation, using more convenient.Above-mentioned advertisement machine can also include display screen, display screen and micro controller module
Output end connection, for showing advertising information, by be added display, can from vision, sense of hearing various aspects show advertisement letter
Breath.
Embodiment one
The advertisement machine that can adapt to environment adjustment volume automatically of this example is using simulation input audio-frequency power amplifier, such as Fig. 1
It is shown, including power module, system level chip, simulation input audio-frequency power amplifier, loudspeaker, microphone, analog-to-digital conversion mould
Block one, analog-to-digital conversion module two, digital signal processing module and display, the simulation output end of system level chip and simulation input
The signal input part of audio-frequency power amplifier connects, and the signal output end and loudspeaker of simulation input audio-frequency power amplifier connect
Connect, the input terminal of the output end of digital signal processing module and system level chip connects, the input terminal of analog-to-digital conversion module one with
The input terminal one of microphone connection, output end and digital signal processing module connects, the input terminal and mould of analog-to-digital conversion module two
The input terminal two of the signal output end connection of quasi- input audio power amplifier, output end and digital signal processing module connects,
The control signal output of system level chip is connect with the gain control end of simulation input audio-frequency power amplifier, display screen be
The output end of irrespective of size chip connects, and power module is for powering；Wherein, at the output end of analog-to-digital conversion module one and digital signal
Manage between the input terminal one of module, between the output end of analog-to-digital conversion module two and the input terminal two of digital signal processing module with
And digital signal processing module output end and system level chip input terminal between all use I2The connection of S bus.
Advertisement machine works after corresponding existing program is added, the course of work are as follows: system level chip is by preset advertisement sound
Sound signal is output to simulation input audio-frequency power amplifier in the form of analog signal, simulation input audio-frequency power amplifier according to
Ad sound signal and own gain value, drive the speaker play advertisement and will be output to the final ad sound signal of loudspeaker
It is output to analog-to-digital conversion module two simultaneously, the final ad sound signal received is converted to digital letter by analog-to-digital conversion module two
The input terminal two of digital signal processing module is output to after number.On the other hand, microphone acquisition environmental sound signal is output to mould
The environmental sound signal received is converted to digital signal and is output to digital letter by number conversion module one, analog-to-digital conversion module one
The input terminal two of number processing module, digital signal processing module are believed according to the environmental sound signal received and final ad sound
Number, using WebRTC or speex algorithm, final ad sound signal is removed from environmental sound signal and obtains environmental noise letter
Number, and environmental noise signal is output to system level chip, system level chip works as ring according to the volume of environmental noise signal
The gain of simulation input audio-frequency power amplifier is correspondingly turned up when increasing in border noise, so that the ad sound of broadcasting is improved, when
Environmental noise correspondingly turns down the gain of simulation input audio-frequency power amplifier when reducing, to reduce the ad sound of broadcasting.
Meanwhile system level chip also controls display screen and plays video ads information corresponding with currently playing ad sound.
Embodiment two
The advertisement machine that can adapt to environment adjustment volume automatically of this example is using numeral input audio-frequency power amplifier, such as Fig. 2
It is shown, including power module, system level chip, numeral input audio-frequency power amplifier, loudspeaker, microphone, analog-to-digital conversion mould
Block one, digital signal processing module and display, the digital output end and numeral input audio-frequency power amplifier of system level chip
Signal input part connection, the signal output end of numeral input audio-frequency power amplifier connect with loudspeaker, Digital Signal Processing
The output end of module and the input terminal of system level chip connect, and the input terminal of analog-to-digital conversion module one is connect with microphone, is exported
End is connect with the input terminal one of digital signal processing module, the digital output end of system level chip and digital signal processing module
Input terminal two connects, and the output end of display screen and system level chip connects, and power module is for powering；Wherein, analog-to-digital conversion mould
Between the output end of block one and the input terminal one of digital signal processing module, the output end of digital signal processing module with it is system-level
Between the input terminal of chip, between the digital output end of system level chip and the input terminal two of digital signal processing module and it is
I is all used between the digital output end of irrespective of size chip and the signal input part of numeral input audio-frequency power amplifier2S bus connects
It connects.
Advertisement machine works after corresponding existing program is added, the course of work are as follows: system level chip is according to the ring received
The volume of border noise signal, the preset ad sound signal of internal adjustment volume and by adjust volume after advertisement sound
Sound signal is output to the input terminal of numeral input audio-frequency power amplifier and digital signal processing module in the form of digital signal
Two, the gain of numeral input audio-frequency power amplifier is preset as steady state value, for according to the yield value and the adjustment sound received
Ad sound signal drive the speaker after amount plays advertisement.On the other hand, microphone acquisition environmental sound signal is output to mould
The environmental sound signal received is converted to digital signal and is output to digital letter by number conversion module one, analog-to-digital conversion module one
The input terminal two of number processing module；Digital signal processing module according to receive environmental sound signal, adjustment volume after it is wide
The gain for accusing voice signal and numeral input audio-frequency power amplifier, using WebRTC or speex algorithm, from ambient sound message
Final ad sound signal is removed in number and obtains environmental noise signal, wherein final ad sound signal is by wide after adjustment volume
The gain for accusing voice signal and digital input audio power amplifier obtains, and environmental noise signal is then output to system-level core
Piece.Meanwhile system level chip also controls display screen and plays video ads information corresponding with currently playing ad sound.
It is noted that the emphasis of the utility model is to provide a kind of advertisement machine that can adapt to environment adjustment volume automatically
Hardware configuration and its connection relationship, the corresponding program being directed to, such as analog-to-digital conversion program, WebRTC or speex calculate
Method, system level chip are to the control program of audio signal volume and system level chip to the control program of audio frequency power amplifier gain
Deng belonging to the prior art, those skilled in the art are not required to according to hardware configuration disclosed by the utility model and its connection relationship
Make the creative labor and can be achieved with corresponding program, the utility model it is claimed be only a kind of hardware configuration and its
Connection relationship.
Claims (8)
1. the advertisement machine of environment adjustment volume, including power module, micro controller module, simulation input audio function can be adapted to automatically
Rate amplifier and loudspeaker, the simulation output end of the micro controller module and the signal of simulation input audio-frequency power amplifier are defeated
Entering end connection, the signal output end of simulation input audio-frequency power amplifier is connect with loudspeaker, and the power module is used to power,
It is described it is characterized by also including microphone, analog-to-digital conversion module one, analog-to-digital conversion module two and digital signal processing module
The output end of digital signal processing module and the input terminal of micro controller module connect, the input terminal of the analog-to-digital conversion module one
It is connect with microphone, the input terminal one of output end and digital signal processing module connects, the input of the analog-to-digital conversion module two
End is connect with the signal output end of simulation input audio-frequency power amplifier, the input terminal two of output end and digital signal processing module
Connection, the control signal output of the micro controller module and the gain control end of simulation input audio-frequency power amplifier connect
It connects.
2. the advertisement machine of environment adjustment volume can be adapted to automatically as described in claim 1, it is characterised in that: analog-to-digital conversion module
Between one output end and the input terminal one of digital signal processing module, at the output end of analog-to-digital conversion module two and digital signal
Manage module input terminal two between and digital signal processing module output end and micro controller module input terminal between all
Using I2The connection of S bus.
3. the advertisement machine of environment adjustment volume can be adapted to automatically as described in claim 1, it is characterised in that: the microcontroller
Module uses system level chip.
4. the advertisement machine of environment adjustment volume can be adapted to automatically as described in claim 1, it is characterised in that: further include display
The output end of screen, the display screen and micro controller module connects.
5. the advertisement machine of environment adjustment volume, including power module, micro controller module, numeral input audio function can be adapted to automatically
The signal of rate amplifier and loudspeaker, the digital output end and numeral input audio-frequency power amplifier of the micro controller module is defeated
Entering end connection, the signal output end of numeral input audio-frequency power amplifier is connect with loudspeaker, and the power module is used to power,
It is characterized by also including microphone, analog-to-digital conversion module one and digital signal processing module, the digital signal processing modules
Output end and micro controller module input terminal connect, the input terminal of the analog-to-digital conversion module one is connect with microphone, defeated
The input terminal one of outlet and digital signal processing module connects, at the digital output end and digital signal of the micro controller module
The input terminal two for managing module connects.
6. the advertisement machine of environment adjustment volume can be adapted to automatically as claimed in claim 5, it is characterised in that: analog-to-digital conversion module
Between one output end and the input terminal one of digital signal processing module, the output end and microcontroller of digital signal processing module
Between the input terminal of module, between the digital output end of micro controller module and the input terminal two of digital signal processing module and
I is all used between the digital output end of micro controller module and the signal input part of numeral input audio-frequency power amplifier2S bus
Connection.
7. the advertisement machine of environment adjustment volume can be adapted to automatically as claimed in claim 5, it is characterised in that: the microcontroller
Module uses system level chip.
8. the advertisement machine of environment adjustment volume can be adapted to automatically as claimed in claim 5, it is characterised in that: further include display
The output end of screen, the display screen and micro controller module connects.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111897510A (en) * | 2020-07-30 | 2020-11-06 | 成都新潮传媒集团有限公司 | Volume adjusting method and device of multimedia equipment and computer readable storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111897510A (en) * | 2020-07-30 | 2020-11-06 | 成都新潮传媒集团有限公司 | Volume adjusting method and device of multimedia equipment and computer readable storage medium |
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