CN108471572A - Novel on-vehicle system - Google Patents
Novel on-vehicle system Download PDFInfo
- Publication number
- CN108471572A CN108471572A CN201810388145.1A CN201810388145A CN108471572A CN 108471572 A CN108471572 A CN 108471572A CN 201810388145 A CN201810388145 A CN 201810388145A CN 108471572 A CN108471572 A CN 108471572A
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- Prior art keywords
- resistance
- capacitance
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- circuit
- audio
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Abstract
The invention discloses a kind of novel on-vehicle systems, including digitally, simulation ground, first magnetic bead, power circuit, Power Management Unit, voicefrequency circuit, energy storage filter circuit, wireless communication module, audio-frequency power amplifier and loud speaker, digitally it is connect with simulation by the first magnetic bead, power circuit respectively with digitally, Power Management Unit is connected with audio-frequency power amplifier, digitally it is connect respectively with Power Management Unit and audio-frequency power amplifier, voicefrequency circuit includes audio signal input end, 4th slide rheostat, 6th capacitance, 5th resistance, first operational amplifier, DC power supply, 7th capacitance, 6th resistance, 8th capacitance, 9th capacitance and the 7th resistance.The novel on-vehicle system for implementing the present invention, has the advantages that：Circuit structure is relatively simple, cost is relatively low, the safety and reliability of circuit is higher.
Description
Technical field
The present invention relates to automotive field, more particularly to a kind of novel on-vehicle system.
Background technology
With the high speed development of automotive electronic industry, global mobile communication system/general grouping wireless service technology/enhancing
The mobile communication technologies such as type Data for GSM Evolution are used widely on onboard system.User can utilize
Mobile communication module on onboard system is made a phone call or is connected mobile broadband network and obtains Internet network service.Traditional vehicle
Circuit part in loading system is complicated, and hardware cost is higher.In addition, since the circuit part in traditional onboard system lacks
Corresponding circuit protection function causes the safety and reliability of circuit not high.
Invention content
The technical problem to be solved in the present invention is, for the drawbacks described above of the prior art, provide a kind of circuit structure compared with
For simple, cost is relatively low, the higher novel on-vehicle system of the safety and reliability of circuit.
The technical solution adopted by the present invention to solve the technical problems is：A kind of novel on-vehicle system is constructed, including integrated
On one piece of circuit board digitally, simulation ground, the first magnetic bead, power circuit, Power Management Unit, voicefrequency circuit, energy storage filter
Wave circuit, wireless communication module, audio-frequency power amplifier and loud speaker, it is described digitally to pass through first magnetic bead and the mould
Connect quasi-ly, the power circuit respectively with it is described digitally, Power Management Unit and audio-frequency power amplifier connect, the number
Connect respectively with the Power Management Unit and audio-frequency power amplifier to word, the energy storage filter circuit respectively with it is described wireless
Communication module is digitally connected with Power Management Unit, the voicefrequency circuit respectively with simulation ground, Power Management Unit and
Audio-frequency power amplifier connects, and the loud speaker is connect with the audio-frequency power amplifier；
The voicefrequency circuit includes audio signal input end, the 4th slide rheostat, the 6th capacitance, the 5th resistance, first
Operational amplifier, DC power supply, the 7th capacitance, the 6th resistance, the 8th capacitance, the 9th capacitance and the 7th resistance, the audio letter
Number input terminal is connect with a fixing end of the 4th slide rheostat, another fixing end of the 4th slide rheostat
Ground connection, the sliding end of the 4th slide rheostat are connect with one end of the 6th capacitance, the other end of the 6th capacitance
It is connect respectively with the 8th pin of one end of the 5th resistance and the first operational amplifier, another termination of the 5th resistance
The second pin on ground, first operational amplifier is connect with the DC power supply, and the 7th of first operational amplifier draws
Foot is connect with one end of one end of the 6th resistance and the 8th capacitance respectively, the other end ground connection of the 8th capacitance, described
The other end of 6th resistance respectively with one end of the 7th capacitance, one end of the 7th resistance, the first operational amplifier the 4th
One end of pin and the 9th capacitance connects, and the other end of the 7th capacitance and the other end of the 9th capacitance be grounded, and described the
The third pin of one operational amplifier is connect with the other end of the 7th resistance and audio-frequency power amplifier respectively, and the described 7th
The resistance value of resistance is 37k Ω.
In novel on-vehicle system of the present invention, the voicefrequency circuit further includes the 5th diode, and the described 5th 2
The anode of pole pipe is connect with the third pin of first operational amplifier, cathode and the audio work(of the 5th diode
Rate amplifier connects, the model S-562 of the 5th diode.
In novel on-vehicle system of the present invention, the energy storage filter circuit includes the first connector, the second connection
Device, the tenth capacitance, the 8th resistance, the 11st capacitance, the second inductance, the 12nd capacitance, the 6th diode, the first triode and
First pin of nine resistance, first connector is connect with one end of one end of the tenth capacitance and the 8th resistance respectively,
The other end of tenth capacitance is grounded, the second pin of first connector respectively with one end of the 11st capacitance,
One end of second inductance, the 12nd capacitance one end connected with the anode of the 6th diode, the other end of the 11st capacitance
It is grounded with the other end of the second inductance, the cathode of the 6th diode is connect with the collector of first triode, institute
The other end for stating the 12nd capacitance is connect with one end of the other end of the 8th resistance and the 9th resistance respectively, the 9th electricity
The other end of resistance is connect with the second pin of the base stage of first triode and the second connector respectively, first triode
Emitter connect with the first pin of second connector, the model E-501 of the 6th diode.
In novel on-vehicle system of the present invention, the energy storage filter circuit further includes the tenth resistance, and the described tenth
One end of resistance is connect with the base stage of first triode, and the of the other end of the tenth resistance and second connector
Two pins connect, and the resistance value of the tenth resistance is 56k Ω.
In novel on-vehicle system of the present invention, first triode is NPN type triode.
In novel on-vehicle system of the present invention, the wireless communication module is bluetooth module, WIFI module, GSM
Module, GPRS module, CDMA module, CDMA2000 modules, WCDMA modules, TD-SCDMA modules, Zigbee module or LoRa moulds
Block.
The novel on-vehicle system for implementing the present invention, has the advantages that：It is integrated on one piece of circuit board due to being equipped with
Digitally, simulation ground, the first magnetic bead, power circuit, Power Management Unit, voicefrequency circuit, energy storage filter circuit, wirelessly communicate
Module, audio-frequency power amplifier and loud speaker, voicefrequency circuit include audio signal input end, the 4th slide rheostat, the 6th electricity
Appearance, the 5th resistance, the first operational amplifier, DC power supply, the 7th capacitance, the 6th resistance, the 8th capacitance, the 9th capacitance and the 7th
Resistance, for the voicefrequency circuit relative to the circuit part in traditional onboard system, the component used is less, can reduce in this way
Hardware cost, in addition, the 7th resistance is used to carry out current-limiting protection, therefore circuit structure is relatively simple, cost is relatively low, the peace of circuit
Full property and reliability are higher.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram in novel on-vehicle system one embodiment of the present invention；
Fig. 2 is the circuit diagram of the embodiment middle pitch frequency circuit；
Fig. 3 is the circuit diagram of energy storage filter circuit in the embodiment.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In novel on-vehicle system embodiment of the present invention, the structural schematic diagram of the novel on-vehicle system is as shown in Figure 1.Fig. 1
In, the novel on-vehicle system include be integrated on one piece of circuit board digitally 1, the 2, first magnetic bead L1 of simulation ground, power circuit
3, Power Management Unit 4, voicefrequency circuit 5, energy storage filter circuit 6, wireless communication module 7, audio-frequency power amplifier 8 and loud speaker
9, it is integrated on one piece of circuit board, space not only can be saved, moreover it is possible to reduce cost.Wherein, digitally 1 pass through the first magnetic
Pearl L1 is connect with simulation ground 2, and power circuit 3 is connect with digitally 1, Power Management Unit 4 and audio-frequency power amplifier 8 respectively,
For providing power supply, digitally 1 it is connect respectively with Power Management Unit 4 and audio-frequency power amplifier 8, energy storage filter circuit 6 divides
Not with wireless communication module 7, digitally 1 and Power Management Unit 4 connect, the power supply progress for export to source control unit 4
Filtering and energy storage, voicefrequency circuit 5 is connect with simulation ground 2, Power Management Unit 4 and audio-frequency power amplifier 8 respectively, for handling
Various audio signals, loud speaker 9 are connect with audio-frequency power amplifier 8.
Automobile power source is provided by the accumulator of automobile, is exported by power circuit 3, the vapour of output voltage 12V, 12V
Vehicle power supply is exported respectively to Power Management Unit 4 and audio-frequency power amplifier 8.The defeated of audio signal is realized by voicefrequency circuit 5
Enter, handle and export, audio-frequency power amplifier 8 exports after amplifying audio signal to loud speaker 9.
Using the first magnetic bead L1 it is possible to prevente effectively from the digitally interference between 1 and simulation ground 2, energy storage filter circuit 6 can
To enhance power supply to wireless communication module 7, wireless communication module 7 is reduced to other function modules of the novel on-vehicle system
Interference.
In the present embodiment, wireless communication module 7 can be bluetooth module, WIFI module, gsm module, GPRS module, CDMA
Module, CDMA2000 modules, WCDMA modules, TD-SCDMA modules, Zigbee module or LoRa modules etc..It is a variety of by being arranged
Communication can increase the flexibility of communication mode, meet the needs of different user and different occasions, in particular by
When LoRa modules, farther out, and communication performance is relatively stable for communication distance, is suitable for the higher occasion of QoS requirement.
Fig. 2 is the circuit diagram of the present embodiment middle pitch frequency circuit, and in Fig. 2, which includes audio signal input
Hold Vi, the 4th slide rheostat RP4, the 6th capacitance C6, the 5th resistance R5, the first operational amplifier A 1, DC power supply VCC, the
Seven capacitance C7, the 6th resistance R6, the 8th capacitance C8, the 9th capacitance C9 and the 7th resistance R7, wherein audio signal input end Vi with
A fixing end of 4th slide rheostat RP4 connects, and another fixing end ground connection of the 4th slide rheostat RP4, the 4th slides
The sliding end of dynamic rheostat RP4 is connect with one end of the 6th capacitance C6, the other end of the 6th capacitance C6 respectively with the 5th resistance R5
One end connected with the 8th pin of the first operational amplifier A 1, the other end of the 5th resistance R5 ground connection, the first operational amplifier
The second pin of A1 is connect with DC power supply VCC, the 7th pin of the first operational amplifier A 1 respectively with the 6th resistance R6 one
End is connected with one end of the 8th capacitance C8, and the other end of the 8th capacitance C8 is grounded, and the other end of the 6th resistance R6 is respectively with the 7th
One end of capacitance C7, one end of the 7th resistance R7, the 4th pin of the first operational amplifier A 1 and the 9th capacitance C9 one end connect
It connects, the other end of the 7th capacitance C7 and the other end of the 9th capacitance C9 are grounded, the third pin point of the first operational amplifier A 1
It is not connect with the other end of the 7th resistance R7 and audio-frequency power amplifier 8.
For the voicefrequency circuit 5 for the circuit part in traditional onboard system, the component used is less, circuit structure compared with
To be simple, hardware cost can be reduced in this way.7th resistance R7 is current-limiting resistance, for carrying out current-limiting protection, therefore circuit
Safety and reliability is higher.It is noted that in the present embodiment, the resistance value of the 7th resistance R7 is 37k Ω, certainly, in reality
In the application of border, the resistance value of the 7th resistance R7 can adjust accordingly as the case may be.
In the present embodiment, audio signal is from audio signal input end Vi inputs through the electricity of the 4th slide rheostat RP4 and the 6th
It is added to the 8th pin of the first operational amplifier A 1 after appearance C6, is drawn by the third of the first operational amplifier A 1 after audio signal amplification
Foot exports.4th slide rheostat RP4 is volume potentiometer, for adjusting volume；5th resistance R5 is the first fortune of setting
The direct current biasing operating point of amplifier A1 is calculated, while input terminal high-pass filter is formed with the 6th capacitance C6；9th capacitance C9 is used
In the high-end unstability of reduction 1 frequency of the first operational amplifier A.
In the present embodiment, which further includes the 5th diode D5, the anode of the 5th diode D5 and the first operation
The third pin of amplifier A1 connects, and the cathode of the 5th diode D5 is connect with audio-frequency power amplifier 8.5th diode D5 is
Current Limiting Diodes, for carrying out current-limiting protection, to further enhance the safety and reliability of circuit.It is noted that this
In embodiment, the model S-562 of the 5th diode D5, certainly, in practical applications, the 5th diode D5 can also select it
His model has the diode of similar functions.
Fig. 3 is the circuit diagram of energy storage filter circuit in the present embodiment, in the present embodiment, the energy storage filter circuit 6 packet
Include the first connector J1, the second connector J2, the tenth capacitance C10, the 8th resistance R8, the 11st capacitance C1, the second inductance L2,
12 capacitance C12, the 6th diode D6, the first triode Q1 and the 9th resistance R9, the first pin difference of the first connector J1
It is connect with one end of one end of the tenth capacitance C10 and the 8th resistance R8, the other end ground connection of the tenth capacitance C10, the first connector
The second pin of J1 respectively with one end of the 11st capacitance C11, one end of the second inductance L2, the 12nd capacitance C12 one end and
The anode of 6th diode D6 connects, and the other end of the other end of the 11st capacitance C11 and the second inductance L2 are grounded, and the six or two
The cathode of pole pipe D6 is connect with the collector of the first triode Q1, the other end of the 12nd capacitance C12 respectively with the 8th resistance R8
The other end and the 9th resistance R9 one end connection, the other end of the 9th resistance R9 respectively with the base stage of the first triode Q1 and the
The second pin of two connector J2 connects, and the emitter of the first triode Q1 is connect with the first pin of the second connector J2.
The energy storage filter circuit 6 is relative to traditional technology, and the component used is less, and circuit structure is relatively simple, this
Sample can reduce hardware cost.6th diode D6 is Current Limiting Diodes, for carrying out current-limiting protection.It is noted that this
In embodiment, the model E-501 of the 6th diode D6, certainly, in practical applications, the 6th diode D6 can also select it
His model has the diode of similar functions.
The signal of first connector J1 is filtered by RC filter units (the tenth capacitance C10 and the 8th resistance R8) and LC single respectively
First (the second inductance L2 and the 11st capacitance C11) is filtered, and using the design of double-smoothing, can greatly improve filtering effect
Fruit, and anti-interference ability is good；Traditional double capacitive ways are replaced using RC filter units and LC filter units, realize big frequency range
Anti-interference filtration；Using the first triode Q1, it is conducive to the impedance matching of circuit in signal transmission, reduces signal in practical applications
The insertion loss of circuit improves the transmission quality of signal.
It is noted that in the present embodiment, the first triode Q1 is NPN type triode, certainly, in practical applications,
First triode Q1 can also use PNP type triode, but at this moment the structure of circuit also will accordingly change.
In the present embodiment, which further includes the tenth resistance R10, one end and the one or three of the tenth resistance R10
The base stage of pole pipe Q1 connects, and the other end of the tenth resistance R10 is connect with the second pin of the second connector J2.Tenth resistance R10
For current-limiting resistance, for carrying out current-limiting protection, further to enhance the safety and reliability of circuit.It is noted that
In the present embodiment, the resistance value of the tenth resistance R10 is 56k Ω, and certainly, in practical applications, the resistance value of the tenth resistance R10 can root
It is adjusted accordingly according to concrete condition.
In short, in the present embodiment, the voicefrequency circuit 5 is relative to the circuit part in traditional onboard system, the member that uses
Device is less, and circuit structure is relatively simple, can reduce hardware cost in this way.In addition, being equipped with current limliting electricity in the voicefrequency circuit 5
Resistance, therefore the safety and reliability of circuit is higher.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (6)
1. a kind of novel on-vehicle system, which is characterized in that including be integrated on one piece of circuit board digitally, simulation ground, first
Magnetic bead, power circuit, Power Management Unit, voicefrequency circuit, energy storage filter circuit, wireless communication module, audio-frequency power amplifier
And loud speaker, it is described digitally by first magnetic bead with it is described simulation connect, the power circuit respectively with the number
Word, Power Management Unit connected with audio-frequency power amplifier, it is described digitally respectively with the Power Management Unit and audio
Power amplifier connects, and the energy storage filter circuit connects with the wireless communication module, digitally with Power Management Unit respectively
Connect, the voicefrequency circuit connect with simulation ground, Power Management Unit and audio-frequency power amplifier respectively, the loud speaker and
The audio-frequency power amplifier connection；
The voicefrequency circuit includes audio signal input end, the 4th slide rheostat, the 6th capacitance, the 5th resistance, the first operation
Amplifier, DC power supply, the 7th capacitance, the 6th resistance, the 8th capacitance, the 9th capacitance and the 7th resistance, the audio signal are defeated
Enter end to connect with a fixing end of the 4th slide rheostat, another of the 4th slide rheostat fixes termination
The sliding end on ground, the 4th slide rheostat is connect with one end of the 6th capacitance, the other end point of the 6th capacitance
It is not connect with the 8th pin of one end of the 5th resistance and the first operational amplifier, another termination of the 5th resistance
The second pin on ground, first operational amplifier is connect with the DC power supply, and the 7th of first operational amplifier draws
Foot is connect with one end of one end of the 6th resistance and the 8th capacitance respectively, the other end ground connection of the 8th capacitance, described
The other end of 6th resistance respectively with one end of the 7th capacitance, one end of the 7th resistance, the first operational amplifier the 4th
One end of pin and the 9th capacitance connects, and the other end of the 7th capacitance and the other end of the 9th capacitance be grounded, and described the
The third pin of one operational amplifier is connect with the other end of the 7th resistance and audio-frequency power amplifier respectively, and the described 7th
The resistance value of resistance is 37k Ω.
2. novel on-vehicle system according to claim 1, which is characterized in that the voicefrequency circuit further includes the five or two pole
Pipe, the anode of the 5th diode are connect with the third pin of first operational amplifier, the moon of the 5th diode
Pole is connect with the audio-frequency power amplifier, the model S-562 of the 5th diode.
3. novel on-vehicle system according to claim 1 or 2, which is characterized in that the energy storage filter circuit includes first
Connector, the second connector, the tenth capacitance, the 8th resistance, the 11st capacitance, the second inductance, the 12nd capacitance, the six or two pole
Pipe, the first triode and the 9th resistance, the first pin of first connector respectively with one end of the tenth capacitance and the
One end of eight resistance connects, the other end ground connection of the tenth capacitance, the second pin of first connector respectively with it is described
One end of 11st capacitance, one end of the second inductance, the 12nd capacitance one end connected with the anode of the 6th diode, described
The other end of the other end of 11 capacitances and the second inductance is grounded, cathode and first triode of the 6th diode
Collector connection, the other end of the 12nd capacitance one end with the other end and the 9th resistance of the 8th resistance respectively
The other end of connection, the 9th resistance connects with the base stage of first triode and the second pin of the second connector respectively
It connects, the emitter of first triode is connect with the first pin of second connector, the model of the 6th diode
For E-501.
4. novel on-vehicle system according to claim 3, which is characterized in that the energy storage filter circuit further includes the tenth electricity
Resistance, one end of the tenth resistance connect with the base stage of first triode, the other end of the tenth resistance and described the
The second pin of two connectors connects, and the resistance value of the tenth resistance is 56k Ω.
5. novel on-vehicle system according to claim 4, which is characterized in that first triode is NPN type triode.
6. novel on-vehicle system according to claim 1 or 2, which is characterized in that the wireless communication module is bluetooth mould
Block, WIFI module, gsm module, GPRS module, CDMA module, CDMA2000 modules, WCDMA modules, TD-SCDMA modules,
Zigbee module or LoRa modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810388145.1A CN108471572A (en) | 2018-04-26 | 2018-04-26 | Novel on-vehicle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810388145.1A CN108471572A (en) | 2018-04-26 | 2018-04-26 | Novel on-vehicle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108471572A true CN108471572A (en) | 2018-08-31 |
Family
ID=63263955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810388145.1A Pending CN108471572A (en) | 2018-04-26 | 2018-04-26 | Novel on-vehicle system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108471572A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202183773U (en) * | 2011-07-13 | 2012-04-04 | 上海博泰悦臻电子设备制造有限公司 | Vehicle-mounted system |
| CN102882610A (en) * | 2011-07-13 | 2013-01-16 | 上海博泰悦臻电子设备制造有限公司 | Vehicle system and method for eliminating noise |
| CN204481776U (en) * | 2015-03-24 | 2015-07-15 | 天津亿瑞电子商务有限公司 | A kind of filter circuit |
| CN204761691U (en) * | 2015-07-29 | 2015-11-11 | 泉州品荣商贸有限公司 | Intercom audio circuit |
| CN206569857U (en) * | 2016-12-15 | 2017-10-20 | 苏州英威腾电力电子有限公司 | A kind of elevator drive |
-
2018
- 2018-04-26 CN CN201810388145.1A patent/CN108471572A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202183773U (en) * | 2011-07-13 | 2012-04-04 | 上海博泰悦臻电子设备制造有限公司 | Vehicle-mounted system |
| CN102882610A (en) * | 2011-07-13 | 2013-01-16 | 上海博泰悦臻电子设备制造有限公司 | Vehicle system and method for eliminating noise |
| CN204481776U (en) * | 2015-03-24 | 2015-07-15 | 天津亿瑞电子商务有限公司 | A kind of filter circuit |
| CN204761691U (en) * | 2015-07-29 | 2015-11-11 | 泉州品荣商贸有限公司 | Intercom audio circuit |
| CN206569857U (en) * | 2016-12-15 | 2017-10-20 | 苏州英威腾电力电子有限公司 | A kind of elevator drive |
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Application publication date: 20180831 |