CN104735590B - Stereo set based on high-voltage air ionizing - Google Patents
Stereo set based on high-voltage air ionizing Download PDFInfo
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- CN104735590B CN104735590B CN201510124685.5A CN201510124685A CN104735590B CN 104735590 B CN104735590 B CN 104735590B CN 201510124685 A CN201510124685 A CN 201510124685A CN 104735590 B CN104735590 B CN 104735590B
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Abstract
The present invention is a kind of stereo set based on high-voltage air ionizing and control method, and its structure includes power supply, bluetooth module, modulation module, drive module, high voltage package, electrode, MSP430F6638 main control modules, data presentation device（12864 liquid crystal displays）, detection feedback module.Advantage：1）Air is directly acted on, but it is small to discharge, and the audible segment of sound equipment only has electrode and electric arc, by changing electric arc thickness, length, controls the size of sound；2）It is fine in treble portion reduction degree, it is difficult to distortion, attracting dim light can be sent when work；3）By the use of MSP430F6638 as main control chip, the data such as humiture, ozone content are measured, in the case of ventilation, it is necessary to which persistently providing the gases such as nitrogen eliminates ozone when ozone content is higher so that device is safer；4）Support is attached by Bluetooth communication with mobile terminal, radio play music.
Description
Technical field
The present invention relates to a kind of stereo set based on high-voltage air ionizing, belong to stereo set technical field.
Background technology
Common sound equipment is the vibratory drive air sounding by vibrating diaphragm, because every kind of vibrating diaphragm has different resonant frequencies,
Sound amplitude versus frequency characte is set to be deteriorated --- frequency and the close composition of vibrating diaphragm resonant frequency are most strong in audio signal, and frequency is away from humorous
Vibration frequency is decayed into branch, and decay more far away more are simultaneously finally attenuated completely, in order to which sounding performance is with regard to palpus
Solve the resonance problems of sound equipment.
Instantly the people of bass hi-fi effect is constantly being pursued, is increasingly seeing many, there are groups of people to have persistent to high pitch effect
Pursuit, but a set of sound equipment being made up of top dome loudspeaker is expensive.
Plasma sound equipment is one kind of sound equipment, but again different with common sound equipment, and it does not have vibrating diaphragm, but by straight
The air vibration sounding of driving ionization is connect, so theoretical plasma sound equipment is that performance is best in sound equipment.
The content of the invention
Proposed by the present invention is a kind of stereo set based on high-voltage air ionizing, and its purpose aims to solve the problem that common sound equipment
Above-mentioned deficiency, with high pitch effect is good, sounding original paper is small, cost is low, improves driving force, can the power of effectively pilot arc put down
Weighing apparatus is stable, prevents heat from gathering, also with ozone, temperature, the function of Humidity Detection, and supports Bluetooth of mobile phone to control.
The technical solution of the present invention：Stereo set based on high-voltage air ionizing, its feature includes power supply, bluetooth mould
Block, modulation module, drive module, high voltage package, electrode, MSP430F6638 main control modules, data presentation device, detection feedback mould
Block；Wherein power supply power output end is filled with bluetooth module, modulation module, MSP430F6638 main control modules and data display respectively
The power input put connects, the signal output part ANT of bluetooth module and the signal input part 1 of modulation module#、2#Correspondence connects,
The signal output part 3 of modulation module#、4#It is corresponding with signal input part A, B of drive module respectively to connect, the signal of drive module
Output end C, D are corresponding with the signal input part of high voltage package to connect, the signal output part of high voltage package and the signal input part phase of electrode
Connect, detect feedback module signal input/output terminal P1-SIN, P2-DO, P3-SIN, P3-TTL respectively with MSP430F6638 master
Signal output/input P2.7, P4.1, P9.0, P9.1 correspondence for controlling module connects, the signal of MSP430F6638 main control modules
Input/output terminal P2.4, P2.5, P2.6, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6, P1.7, P1.8 and data display are filled
The signal output put/input EN, RW, RS, DB1, DB2, DB3, DB4, DB5, DB6, DB7, DB8 correspondence connects；During work, electricity
Source is powered, and audio signal is modulated by drive module, is modulated into the signal that drive module can be recognized, drive module driving
High voltage package so that electrode discharge plays music, and MSP430F6638 main control modules are according to the ozone, temperature for detecting that feedback module feeds back
Humidity information, is controlled and is shown by data presentation device by detecting feedback module.
Advantages of the present invention：1）Directly act on air, but it is small to discharge, the audible segment of sound equipment only have electrode and
Electric arc, by changing electric arc thickness, length, controls the size of sound；2）It is fine in treble portion reduction degree, it is difficult to distortion, work
Attracting dim light can be sent when work；3）By the use of MSP430F6638 as main control chip, humiture, ozone content are measured
Etc. data, in the case of ventilation, it is necessary to which persistently providing the gases such as nitrogen eliminates ozone when ozone content is higher so that device is more
Safety；4）Support is attached by Bluetooth communication with mobile terminal, radio play music.
Also there is ozone, temperature, the function of Humidity Detection.
The ozone concentration in chamber, and humiture can be detected in real time using MSP430F6638 main control modules, and passed through
Data presentation device（12864 liquid crystal displays）Show.The loudspeaker of plasma sound equipment also correspond to an ozone generator,
Oxygen in air can be become ozone by plasma discharge, and some light weights are there may also be in addition allows various gases to produce complexity
Other compounds, but topmost oxious component is ozone.Although a small amount of ozone can kill bacterium, fresh air,
It is that substantial amounts of ozone can allow people to feel nausea, when not opening a window, is easier poisoning.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the stereo set based on high-voltage air ionizing.
Fig. 2 is the schematic diagram of electrode.
Fig. 3 is the circuit diagram of modulation module.
Fig. 4 is the circuit diagram of drive module.
Fig. 5 is the circuit diagram of bluetooth module.
Fig. 6 is MSP430F6638 main control module minimum system schematic diagrams.
Fig. 7 is data presentation device（12864 liquid crystal displays）Circuit diagram.
Fig. 8 is the circuit diagram of detection feedback module.
1 in Fig. 2 is anode, and 2 be negative electrode.
Embodiment
Compare accompanying drawing, the stereo set based on high-voltage air ionizing, its structure include power supply, bluetooth module, modulation module,
Drive module, high voltage package, electrode, MSP430F6638 main control modules, data presentation device, detection feedback module；Wherein power supply is electric
The power input of source output terminal respectively with bluetooth module, modulation module, MSP430F6638 main control modules and data presentation device
Connect, the signal output part ANT of bluetooth module and the signal input part 1 of modulation module#、2#Correspondence connects, the signal of modulation module
Output end 3#、4#It is corresponding with signal input part A, B of drive module respectively to connect, signal output part C, D and high pressure of drive module
The signal input part correspondence of bag connects, and the signal output part of high voltage package connects with the signal input part of electrode, detects feedback module
Signal respectively with MSP430F6638 main control modules of signal input/output terminal P1-SIN, P2-DO, P3-SIN, P3-TTL it is defeated
Go out/input P2.7, P4.1, P9.0, P9.1 correspondence connect, the signal input/output terminal of MSP430F6638 main control modules
The signal of P2.4, P2.5, P2.6, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6, P1.7, P1.8 and data presentation device is defeated
Go out/input EN, RW, RS, DB1, DB2, DB3, DB4, DB5, DB6, DB7, DB8 correspondence connect；During work, power supply is powered, will
Audio signal is modulated by drive module, is modulated into the signal that drive module can be recognized, drive module driving high voltage package makes
Electrode discharge play music, MSP430F6638 main control modules according to detection feedback module feed back ozone, humiture information,
It is controlled and is shown by data presentation device by detects feedback module.
The power supply（Half-bridge circuit）It is 24V 10A Switching Power Supply, drive module is exported using IRF540/9540MOS,
Driving force is strong, can directly drive IGBT module；Using TL494 as power supply chip, IRFP FET half-bridges are driven, are promoted
High voltage package produces high pressure arc discharge；The audio signal of drive module is input to by controlling the dead times of TL494 output waveforms,
Current density is set to change with audio, changes of magnetic field, from magnetic force change, to maintain balance, because frequency changes very high, is visually observed
Electric arc thickness less than moment changes, but this small change is enough to have influence on the air of surrounding and is allowed to vibrate, generation and
Input signal identical sound wave.
Described electrode uses copper wire, because red copper has excellent thermal conductivity, advantageously reduces temperature to prevent
Heat, which is accumulated in, makes both poor sound quality on electrode.But red copper is unable to undergo the erosion of plasma, it is necessary to corrode a period of time in itself
Changed afterwards, by test, on the premise of acoustical quality is ensured, need to carry out once more after continuous work 200 hours
Change, interrupter duty needs to be changed after 1100 hours.
The present invention also has ozone, temperature, the function of Humidity Detection.
The ozone concentration in chamber, and humiture can be detected in real time using MSP430F6638 main control modules, and passed through
Data presentation device（12864 liquid crystal displays）Show.The loudspeaker of plasma sound equipment also correspond to an ozone generator,
Oxygen in air can be become ozone by plasma discharge, and some light weights are there may also be in addition allows various gases to produce complexity
Other compounds, but topmost oxious component is ozone.Although a small amount of ozone can kill bacterium, fresh air,
It is that substantial amounts of ozone can allow people to feel nausea, when not opening a window, is easier poisoning.
So when in the chamber of the stereo set based on high-voltage air ionizing detect ozone concentration higher than certain value when
Wait, start sound and light alarm, remind user that windowing is ventilative, when ozone concentration is higher, prevent the harm of accessory substance ozone indoors,
Need continuously to provide the gases such as nitrogen elimination ozone.
The ozone concentration method in stereo set chamber is controlled, is comprised the following steps：
Ozone concentration is divided intoD max 、D mid 、D min Three standards, main control module detects the ozone concentration in chamber in real time
ForD t , nitrogen injection rate isS in ∈[S max , 0] and it is interval,S max For equipment maximum nitrogen injection rate, it is based on using one kind of design smelly
Oxygen concentration adaptive control algorithm is controlled to ozone concentration, is comprised the following steps that：
1）WhenD t ≥D max For the exceeded situation of ozone concentration severe,S in =S max ；
2）WhenD mid ≤D t ≤D max For the exceeded situation of ozone concentration moderate,；
3）WhenD min ≤D x ≤D mid For the slight exceeded situation of ozone concentration, ,K 1WithK 2For actual tuning coefficient；
4）WhenD x ＜D mid For ozone concentration normal condition,S in =0。
In order to allow the product can reliable and stable work, export the sound of high-fidelity, it is necessary to the temperature in chamber and wet
Degree monitor and adjust in real time, that is, controls epidemic disaster in the chamber of stereo set, its control method, including following technique step
Suddenly：
The cavity temperature scope of product steady operation isT s +ΔT, temperature and humidity has a correlation, carries out humidity connection
Close control, use PWM technologies carry out regulation and control the specific algorithm steps of for：
1st, the detection of MSP430F6638 main control modules obtains the current temperature of chamberT x And humidityH x ；
2nd, whenT x ＞T s +ΔTWhen, chamber is too high, and chamber is cooled, and humid control is existedH=f 1(T x ), whereinf 1
It isT x For the linear function of variable；
3rd, whenT s -ΔT≤T x ≤T s +ΔTWhen, chamber temp is maintained at its humidity in normal range (NR)H=f 2(T x ,H x ), whereinf 2ForT x ,H x Second order function；
4th, whenT x ＜T s -ΔTChamber is heated up, and humid control is existedH=f 3(T x ), whereinf 3It isT x For variable
Linear function.
The present invention supports Bluetooth of mobile phone control in addition to supporting wired broadcasting music, also.Only need to as matching other mobile phones
Equally, the mobile phone of oneself and the product can just be matched, convenient more many than wired to be controlled broadcasting music, control range
Up to ten meters or so, normally indoors using without any problem.The product, which produces electric arc, needs volt high pressures up to ten thousand, and electric arc produces one
Instant produces electromagnetic pulse, seriously may burn out ambient electron product circuit very.Electromagnetic Interference can be sent during operation
Ambient electron product, the product is around electric arc plus a metal net mask is used for solving electromagnetic interference as the electric cage of faraday.In addition
Using Bluetooth control, electronic equipment can be effectively protected.In test process, under wired state of a control, do not feel
It is interfered and can not works to electronic product.
As shown in Fig. 2 the electrode being made of copper wire, can be in the electric discharge of electrode one end when sound equipment works, ionization is empty
Gas, direct sounding, directly acts on air.Negative electrode 2 produces heat greatly, and its copper wire is wound in into " wave " shape, is conducive to electricity
Conduct heat away on extremely falls.The erosion of electrode is reduced, the use time of electrode is increased.The copper wire of anode 1 is few compared to the heat of negative electrode 2
A lot.
As shown in figure 3, the pulse width modulation circuit module TL494 of fixed frequency, by modulates audio signals into driving below
The high-frequency signal that dynamic model block can be recognized, for producing the core that PWM ripples are circuits.The frequency of waveform is connect by 5,6 pin
Capacitance resistance determined, 4 pin are dead zone function signal input part, and benchmark 5V voltages are obtained into basic pulse, then is superimposed and put
Audio signal after big, is that pulse changes with audio height.
As shown in figure 4, ZVS half-bridge driven modules, the high voltage package of driving below, efficiency can reach ten to hundred 8 percent
/ eight ten five.
As shown in figure 5, bluetooth module, the button of side can control to manually boot closing bluetooth module, also can be manual
Adjust the size of plasma audible sound.The data transmission rate of bluetooth is 1Mb/s, is transmitted in the form of packet by time slot
Per the μ s of time slot 0.625.Bluetooth system supports synchronous orientation connection in real time and non real-time asynchronous non-directional connection.It is blue in mobile phone
Tooth module, can be with the controlled in wireless sound equipment after success is connected with the module.
As shown in fig. 6, MSP430F6638 main control modules are super low-power consumption microcontrollers, using five kinds of low-power modes
Framework extends the service life of battery by optimization.
As shown in fig. 7, data presentation device is 12864 liquid crystal displays, the humiture of detection and the content of ozone are shown.
As shown in figure 8,18B20 is used for detection temperature in detection module, 18B20 temperature-measuring range is -55 degrees Celsius to 125
Degree Celsius；Utilize DHT11 humidity sensors, measurement humidity range 20%-95%；Inside cavity work is measured using ozone sensor
When ozone content.
Claims (5)
1. the stereo set based on high-voltage air ionizing, its feature includes power supply, bluetooth module, modulation module, drive module, height
Briquetting, electrode, MSP430F6638 main control modules, data presentation device, detection feedback module；Wherein power supply power output end divides
Power input not with bluetooth module, modulation module, MSP430F6638 main control modules and data presentation device connects, bluetooth
The signal output part ANT of module and the signal input part 1 of modulation module#、2#Correspondence connects, the signal output part 3 of modulation module#、
4#It is corresponding with signal input part A, B of drive module respectively to connect, signal output part C, D and the signal of high voltage package of drive module
Input correspondence connects, and the signal output part of high voltage package connects with the signal input part of electrode, detects that the signal of feedback module is defeated
Enter/signal output/the input of output end P1-SIN, P2-DO, P3-SIN, P3-TTL respectively with MSP430F6638 main control modules
P2.7, P4.1, P9.0, P9.1 correspondence connect, the signal input/output terminal P2.4 of MSP430F6638 main control modules, P2.5,
P2.6, P1.1, P1.2, P1.3, P1.4, P1.5, P1.6, P1.7, P1.8 and data presentation device signal output/input
EN, RW, RS, DB1, DB2, DB3, DB4, DB5, DB6, DB7, DB8 correspondence connect；During work, power supply is powered, and audio signal is led to
Module of overdriving is modulated, and is modulated into the signal that drive module can be recognized, drive module driving high voltage package so that electrode discharge
Music is played, MSP430F6638 main control modules are anti-by detection according to the ozone, humiture information for detecting that feedback module feeds back
Feedback module is controlled and shown by data presentation device.
2. the stereo set as claimed in claim 1 based on high-voltage air ionizing, it is characterized in that the power supply is 24V 10A
Switching Power Supply, drive module is exported using IRF540/9540MOS, directly drives IGBT module；Power supply chip is TL494, driving
IRFP FET half-bridges, promote high voltage package to produce high pressure arc discharge；The audio signal for being input to drive module passes through control
The dead time of TL494 output waveforms, makes current density change with audio, changes of magnetic field, from magnetic force change, to maintain balance,
The electric arc thickness change of moment has influence on the air of surrounding and is allowed to vibrate, and produces and input signal identical sound wave.
3. the stereo set as claimed in claim 1 based on high-voltage air ionizing, it is characterized in that described electrode uses red copper
Silk, copper wire is wound in wavy.
4. the stereo set as claimed in claim 1 based on high-voltage air ionizing, wherein MSP430F6638 main control modules are according to detection
The ozone information of feedback module feedback, the control method of its ozone concentration, it is characterized in that comprising the following steps：
Ozone concentration is divided intoD max 、D mid 、D min Three standards, MSP430F6638 main control modules detect smelly in chamber in real time
Oxygen concentration isD t , nitrogen injection rate isS in ∈[S max , 0] and it is interval,S max For equipment maximum nitrogen injection rate；
1）WhenD t ≥D max For the exceeded situation of ozone concentration severe,S in =S max ；
2）WhenD mid ≤D t ≤D max For the exceeded situation of ozone concentration moderate,；
3）WhenD min ≤D x ≤D mid For the slight exceeded situation of ozone concentration, ,K 1WithK 2For actual tuning coefficient；
4）WhenD x ＜D mid For ozone concentration normal condition,S in =0。
5. the stereo set as claimed in claim 1 based on high-voltage air ionizing, wherein MSP430F6638 main control modules are according to detection
The control method of the epidemic disaster of feedback module feedback, it is characterized in that comprising the technical steps that：
1）The detection of MSP430F6638 main control modules obtains the current temperature of chamberT x And humidityH x ；
2）WhenT x ＞T s +ΔTWhen, chamber is too high, and chamber is cooled, and humid control is existedH=f 1(T x ), whereinf 1It isT x
For the linear function of variable；
3）WhenT s -ΔT≤T x ≤T s +ΔTWhen, chamber temp is maintained at its humidity in normal range (NR)H=f 2(T x ,H x ), its
Inf 2ForT x ,H x Second order function；
4）WhenT x ＜T s -ΔTChamber is heated up, and humid control is existedH=f 3(T x ), whereinf 3It isT x For the linear of variable
Function.
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| CN201510124685.5A CN104735590B (en) | 2015-03-20 | 2015-03-20 | Stereo set based on high-voltage air ionizing |
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| CN201510124685.5A CN104735590B (en) | 2015-03-20 | 2015-03-20 | Stereo set based on high-voltage air ionizing |
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| CN104735590B true CN104735590B (en) | 2017-10-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10021492B1 (en) * | 2017-10-06 | 2018-07-10 | Aga Ad Media, Llp | Electroacoustic transducer with axial electric field |
| CN109286873A (en) * | 2018-11-13 | 2019-01-29 | 合肥工业大学 | A kind of plasma sound equipment |
| CN113483882B (en) * | 2021-06-29 | 2023-03-14 | 重庆长安新能源汽车科技有限公司 | Electric control sound generating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010141858A (en) * | 2008-12-15 | 2010-06-24 | Sony Corp | Sound generator |
| CN101820573A (en) * | 2010-04-30 | 2010-09-01 | 卢驭龙 | Control device for plasma loudspeaker and plasma loudspeaker |
| CN103118318A (en) * | 2013-01-12 | 2013-05-22 | 苏州市伦琴工业设计有限公司 | All-round controllable flow surround-sound system |
| CN203608358U (en) * | 2013-12-13 | 2014-05-21 | 韦威 | Plasma loudspeaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6099143B2 (en) * | 2013-06-12 | 2017-03-22 | 株式会社オーディオテクニカ | Electroacoustic transducer |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010141858A (en) * | 2008-12-15 | 2010-06-24 | Sony Corp | Sound generator |
| CN101820573A (en) * | 2010-04-30 | 2010-09-01 | 卢驭龙 | Control device for plasma loudspeaker and plasma loudspeaker |
| CN103118318A (en) * | 2013-01-12 | 2013-05-22 | 苏州市伦琴工业设计有限公司 | All-round controllable flow surround-sound system |
| CN203608358U (en) * | 2013-12-13 | 2014-05-21 | 韦威 | Plasma loudspeaker |
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