CN205987376U - Speaker fault monitoring system and vehicle of vehicle - Google Patents
Speaker fault monitoring system and vehicle of vehicle Download PDFInfo
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- CN205987376U CN205987376U CN201620897422.8U CN201620897422U CN205987376U CN 205987376 U CN205987376 U CN 205987376U CN 201620897422 U CN201620897422 U CN 201620897422U CN 205987376 U CN205987376 U CN 205987376U
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- 230000008901 benefit Effects 0.000 abstract description 6
- 238000007689 inspection Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
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Abstract
The utility model discloses a speaker fault monitoring system of vehicle and the vehicle that has the speaker fault monitoring system of this vehicle, this speaker fault monitoring system includes: the speaker, the audio power amplifier ware, the audio power amplifier ware links to each other with the speaker, power module, power module links to each other with the audio power amplifier ware, the observation circuit, the observation circuit is including detecting signal input part, sense terminal and detected signal feedback end, and the sense terminal links to each other with the speaker, controller, controller have output interface and feedback interface, and the output interface links to each other with detection signal input part, and the feedback interface is continuous with detected signal feedback end to whether the impedance according to feedback interface received feedback signal monitoring speaker is normal, wherein, and power module and the control of the electric routing control ware of monitoring. The utility model discloses a speaker fault monitoring system of vehicle has the advantage that speaker fault detection is accurate.
Description
Technical field
This utility model is related to field of automobile, the loudspeaker faults monitoring system particularly to a kind of vehicle and
Vehicle.
Background technology
With extensive application on automobile for the automotive electronic technology, especially application on automobile for the bussing technique so that
The control of each system of automobile is all controlled with modularity, and module carries out event by the program of itself to relevant software and hardware simultaneously
Barrier self-inspection, greatly improves efficiency and the accuracy of automobile failure diagnosis.But the malfunction monitoring of partial automobile part is not enough
Accurately, this requires that automobile research staff constantly goes to explore and perfect.Auto loud hailer is as automobile man-machine voiced interaction
One terminal, the not good general of auto loud hailer has a strong impact on the using effect of user vehicle, so the fault of auto loud hailer is certainly
Inspection is very important.
In the related, the fault self-checking of auto loud hailer is mainly magnitude of voltage and the electricity monitoring on loudspeaker audio line
Resistance, thus monitor that speaker whether there is open circuit or short trouble.When in fact above-mentioned fault, user is identified
To being loudspeaker faults, but when the fault of other forms in speaker, prior art fails to find in time, so that
The fault self-checking obtaining speaker is not comprehensive and accurate.
Utility model content
This utility model is intended at least solve one of technical problem in above-mentioned correlation technique to a certain extent.
For this reason, a purpose of the present utility model is to propose a kind of loudspeaker faults monitoring system of vehicle.This vehicle
Loudspeaker faults monitoring system have loudspeaker faults detect accurate advantage.
Another purpose of the present utility model is to provide a kind of vehicle.
To achieve these goals, first aspect of the present utility model proposes a kind of loudspeaker faults monitoring system of vehicle
System, including：Speaker；Audio power amplifier, described audio power amplifier is connected with described speaker, to drive described speaker to send out
Sound；Power module, described power module is connected with described audio power amplifier, thinks that described audio power amplifier is powered；Observation circuit,
Described observation circuit includes detection signal input, test side and detection signal feedback end, described test side and described speaker
It is connected, so that fault detect is carried out to described speaker；Controller, described controller has output interface and feedback interface, described
Output interface is connected with described detection signal input, and described feedback interface is connected with described detection signal feedback end, to pass through
Described output interface exports detection signal, and the resistance of the speaker described in feedback signal monitors being received according to described feedback interface
Whether anti-normal, wherein, described power module and described observation circuit are controlled by described controller.
According to the loudspeaker faults monitoring system of vehicle of the present utility model, audio power amplifier is controlled to be in by controller
High-impedance state, and open observation circuit, allows the output information of monitoring circuit monitors signal and feedback information, can monitor to raise one's voice
The impedance curve of device so that loudspeaker faults self-inspection more comprehensively, more accurate.
In addition, according to the loudspeaker faults monitoring system of the above-mentioned vehicle of this utility model can also have as follows add
Technical characteristic：
Further, described observation circuit includes：First controlling switch, one end of described first controlling switch is raised with described
One end of sound device is connected and the other end is connected with the output interface of described controller；Second controlling switch, described first control is opened
The one end closed is connected with the other end of described speaker and the other end is connected with the feedback interface of described controller；Division module,
With the feedback interface of described controller and the other end is grounded for one end of described division module.
Further, described first controlling switch and the second controlling switch are appointing in relay, audion and metal-oxide-semiconductor
Meaning one.
Further, described power module is DC/DC transducer, and described DC/DC transducer is connected with described controller, with
Toilet is stated controller and described audio power amplifier is powered control by described DC/DC transducer.
Further, described division module includes divider resistance.
Further, described audio power amplifier includes：First amplifier, the input in the same direction of described first amplifier and
One capacitances in series, to input detection signal, the reverse input end of described first amplifier passes through the second electric capacity of series connection, the 3rd electricity
It is grounded after appearance and resistance, the outfan of described first amplifier is connected with one end of described speaker；Second amplifier, described
The input in the same direction of two amplifiers is connected in the middle of described first electric capacity and described second electric capacity, described first amplifier reverse
Input end grounding, the outfan of described first amplifier is connected with the other end of described speaker.
Further, described controller is single-chip microcomputer.
Second aspect of the present utility model discloses a kind of vehicle, including：Vehicle according to above-mentioned first aspect
Loudspeaker faults monitoring system.The loudspeaker faults monitoring system of this vehicle has loudspeaker faults and detects accurate advantage.
Additional aspect of the present utility model and advantage will be set forth in part in the description, partly will be from explained below
In become obvious, or recognized by practice of the present utility model.
Brief description
Above-mentioned and/or additional aspect of the present utility model and advantage will from reference to the description to embodiment for the accompanying drawings below
Become obvious and easy to understand, wherein：
Fig. 1 is the structured flowchart of the loudspeaker faults monitoring system of the vehicle according to one embodiment of this utility model；With
And
Fig. 2 is the circuit diagram of the loudspeaker faults monitoring system of the vehicle according to one embodiment of this utility model.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings is exemplary, is only used for explaining this utility model, and it is not intended that to of the present utility model
Limit.
Loudspeaker faults monitoring system below in conjunction with the vehicle according to this utility model embodiment for the Description of Drawings and having
The vehicle of this loudspeaker faults monitoring system.
Fig. 1 is the structured flowchart of the loudspeaker faults monitoring system of the vehicle according to one embodiment of this utility model.
As shown in figure 1, the loudspeaker faults monitoring system 100 of the vehicle according to one embodiment of this utility model, including：
Speaker 110, audio power amplifier 120, power module 130, observation circuit 140, controller 150.
Wherein, audio power amplifier 120 is connected with speaker 110, to drive described speaker sounding.Power module 130 with
Audio power amplifier 120 is connected, and thinks that audio power amplifier 120 is powered.Observation circuit 140 includes detection signal input 142, detection
End 141 and detection signal feedback end 143, test side 141 is connected with speaker 110, to carry out fault detect to speaker 110.
Controller 150 has output interface 151 and feedback interface 152, and output interface 151 is connected with detection signal input 142, feedback
Interface 152 is connected with detection signal feedback end 143, to export detection signal by output interface 151, and according to feedback interface
Whether the impedance of the feedback signal monitors speaker 110 that 152 receive is normal, wherein, power module 130 and observation circuit 140
Controlled by controller 150.
The loudspeaker faults monitoring system of the vehicle according to this utility model embodiment, the loudspeaker faults monitoring of this vehicle
System can control audio power amplifier to be in high-impedance state by controller, and opens observation circuit, allows monitoring circuit monitors to believe
Number output information and feedback information, the impedance curve of speaker can be monitored so that loudspeaker faults self-inspection more comprehensively,
More accurate.
In an embodiment of the present utility model, controller 150 can be single-chip microcomputer, the first controlling switch K1 and second
Controlling switch K2 can be all any one in relay, audion and metal-oxide-semiconductor.
As a specific example, Fig. 2 is the amusement main frame with automobile for the loudspeaker faults monitoring system 100 of vehicle
As a example 100, then controller 150 is amusement host center controller 150, the output interface 151 of amusement host center controller 150
For P1.1, feedback interface 152 is P1.2.Amusement host center controller 150 controls first switch K1 and the control of second switch K2
Interface processed is P0.1.
As described in Figure 2, observation circuit 140 also includes：First controlling switch K1 one end be connected with one end of speaker 110 and
The other end is connected with P1.1.Second controlling switch K2 one end is connected with the other end of speaker 110 and the other end is connected with P1.2,
First switch K1 and second switch K2 are relay,.Power module 130 is DC/DC transducer 130, DC/DC transducer 130
It is connected with amusement host center controller 150, and entertain the interface that host center controller 150 is connected with DC/DC transducer 130
For P0.2, so that amusement host center controller 150 passes through DC/DC transducer, and audio power amplifier 120 is powered with control.Point
Die block 144 one end is connected with P1.2 and other end ground connection.Division module 144 includes divider resistance Ri.
Wherein audio power amplifier 120 includes：First electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, resistance R, the first amplification
Device 121 and the second amplifier 122.The input in the same direction of the first amplifier 121 is connected with the first electric capacity C1, to input detection letter
Number, the reverse input end of the first amplifier 121 is connected with the second electric capacity C2, the 3rd electric capacity C3 and resistance R ground connection, the first amplifier
121 outfan is connected with one end of speaker 110.Input is connected to the second electric capacity and the 3rd to second amplifier 122 in the same direction
In the middle of electric capacity, the reverse input end ground connection of the second amplifier 122, outfan is connected with the other end of speaker 110.
In conjunction with shown in Fig. 1 and Fig. 2, the work of the loudspeaker faults monitoring system 100 of the vehicle of this utility model embodiment
Principle is as follows：After electricity on automobile entertainment main frame 100, its amusement host center controller 150 carries out program initialization, amusement master
Carry out the self-inspection of automobile entertainment main frame 100 fault after machine master controller 150 program initialization, wherein have one in fault self-checking
Item is the self-inspection of auto loud hailer 110 fault.In the self-inspection carrying out speaker 110 fault, first, entertain host center control
Device 150 processed stops powering to audio power amplifier 120, due to audio power amplifier by its P0.2 port controlling DC/DC transducer 130
120 dead electricity and make the audio output of audio power amplifier 120 become high-impedance state.Afterwards, amusement host center controller 150 passes through
Its P0.1 controls first switch K1 and the closure of second switch K2 (to entertain host center controller 150 and can also pass through its other party
Formula, e.g., the closure of I2C bus marco first switch K1 and second switch K2), the P1.1 of amusement host center controller 150 presses
According to the program set in advance curve chart of its frequency fi (output voltage Uo with) output particular voltage level Uo and its corresponding respectively
Signal waveform frequency fi, that is, amusement host center controller 150 P1.1 output a Uo within the regular hour
Fi signal.Meanwhile, amusement host center controller 150 P1.2 receive P1.1 output Uo fi signal, and with amusement main frame
Stored impedance curve parameter Rx fi in master controller 150 is compared, if comparative result exceeds the scope of regulation,
Amusement host center controller 150 just remembers a loudspeaker impedance failure code, and externally exports when being necessary, thus
Realize the on-line monitoring of auto loud hailer impedance fault.
Being calculated as follows of concrete fault：
If：The magnitude of voltage of one waveshape signal of P1.1 output is Uo, and frequency is fi, and divider resistance resistance is Ri, P1.2
The waveshape signal magnitude of voltage receiving is Ui.
Then：Divider resistance resistance is the electric current Ii=Ui/Ri passing through on Ri.
Because the audio output of audio power amplifier 120 is high-impedance state, the P1.2 of amusement host center controller 150 is height
Resistance state, so divider resistance resistance Ri forms series connection with the impedance Rx of speaker 110.
Then：The electric current Ii passing through on divider resistance Ri is equal to circuit I x pass through on Rx, that is,：Ii=Ix=I
Then：Uo=IRx+IRi=I (Rx+Ri)=Ii (Rx+Ri)=Ui (Rx+Ri)/Ri
Then：Rx=(UoRi/Ui)-Ri
The corresponding Rx of fi thus can be drawn, if the corresponding Rx of fi is inconsistent with store, and exceed certain limit, then appoint
There is fault in business speaker 110 impedance.
According to the loudspeaker faults monitoring system of vehicle of the present utility model, audio power amplifier is controlled to be in by controller
High-impedance state, and open observation circuit, allows the output information of monitoring circuit monitors signal and feedback information, can monitor to raise one's voice
The impedance curve of device so that loudspeaker faults self-inspection more comprehensively, more accurate.
Further, embodiment of the present utility model also discloses a kind of vehicle, including：According to any one enforcement above-mentioned
The loudspeaker faults monitoring system of the vehicle described in example.This vehicle has loudspeaker faults and detects accurate advantage.
In addition, being constituted according to other of the vehicle of this utility model embodiment and acting on the ordinary skill for this area
It is all known for personnel, in order to reduce redundancy, do not repeat.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be
It is mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements, limit unless otherwise clear and definite.Common skill for this area
For art personnel, concrete meaning in this utility model for the above-mentioned term can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible
Any one or more embodiments or example combine in an appropriate manner.Additionally, in the case of not conflicting, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered
Row combines and combines.
Although of the present utility model embodiment has been shown and described above it is to be understood that above-described embodiment is
Exemplary it is impossible to be interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
Interior above-described embodiment can be changed, change, replacing and modification.
Claims (8)
1. a kind of loudspeaker faults monitoring system of vehicle is it is characterised in that include：
Speaker；
Audio power amplifier, described audio power amplifier is connected with described speaker, to drive described speaker sounding；
Power module, described power module is connected with described audio power amplifier, thinks that described audio power amplifier is powered；
Observation circuit, described observation circuit includes detection signal input, test side and detection signal feedback end, described test side
It is connected with described speaker, so that fault detect is carried out to described speaker；
Controller, described controller has output interface and feedback interface, described output interface and described detection signal input
It is connected, described feedback interface is connected with described detection signal feedback end, so that detection signal is exported by described output interface, and root
Whether the impedance according to speaker described in the feedback signal monitors that described feedback interface receives is normal, wherein, described power module
Controlled by described controller with described observation circuit.
2. the loudspeaker faults monitoring system of vehicle according to claim 1 is it is characterised in that described observation circuit bag
Include：
First controlling switch, one end of described first controlling switch is connected with one end of described speaker and the other end and described control
The output interface of device processed is connected；
Second controlling switch, one end of described first controlling switch be connected with the other end of described speaker and the other end with described
The feedback interface of controller is connected；
Division module, one end of described division module is connected with the feedback interface of described controller and other end ground connection.
3. the loudspeaker faults monitoring system of vehicle according to claim 2 is it is characterised in that described first controlling switch
It is any one in relay, audion and metal-oxide-semiconductor with the second controlling switch.
4. the loudspeaker faults monitoring system of vehicle according to claim 1 is it is characterised in that described power module is
DC/DC transducer, described DC/DC transducer is connected with described controller, so that described controller passes through described DC/DC transducer
Described audio power amplifier is powered control.
5. the loudspeaker faults monitoring system of vehicle according to claim 2 is it is characterised in that described division module includes
Divider resistance.
6. the loudspeaker faults monitoring system of vehicle according to claim 1 is it is characterised in that described audio power amplifier bag
Include：
First electric capacity；
Second electric capacity；
3rd electric capacity；
Resistance；
First amplifier, the input in the same direction of described first amplifier and the first capacitances in series, to input detection signal, described
The reverse input end of one amplifier is grounded after the second electric capacity of series connection, the 3rd electric capacity and resistance, described first amplifier
Outfan is connected with one end of described speaker；
Second amplifier, the input in the same direction of described second amplifier is connected in described second electric capacity and described 3rd electric capacity
Between, reverse input end ground connection, the outfan of described second amplifier and the other end of described speaker of described second amplifier
It is connected.
7. the loudspeaker faults monitoring system of vehicle according to claim 1 is it is characterised in that described controller is monolithic
Machine.
8. a kind of vehicle is it is characterised in that include：The loudspeaker faults prison of the vehicle according to any one of claim 1-7
Examining system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620897422.8U CN205987376U (en) | 2016-08-17 | 2016-08-17 | Speaker fault monitoring system and vehicle of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620897422.8U CN205987376U (en) | 2016-08-17 | 2016-08-17 | Speaker fault monitoring system and vehicle of vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN205987376U true CN205987376U (en) | 2017-02-22 |
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ID=58031129
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620897422.8U Expired - Fee Related CN205987376U (en) | 2016-08-17 | 2016-08-17 | Speaker fault monitoring system and vehicle of vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107708039A (en) * | 2017-09-30 | 2018-02-16 | 努比亚技术有限公司 | Control method, mobile terminal and the computer-readable recording medium of voicefrequency circuit |
| CN110430518A (en) * | 2018-05-01 | 2019-11-08 | 阿尔派株式会社 | Fault detection means, fault detection system, fault detection method |
-
2016
- 2016-08-17 CN CN201620897422.8U patent/CN205987376U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107708039A (en) * | 2017-09-30 | 2018-02-16 | 努比亚技术有限公司 | Control method, mobile terminal and the computer-readable recording medium of voicefrequency circuit |
| CN110430518A (en) * | 2018-05-01 | 2019-11-08 | 阿尔派株式会社 | Fault detection means, fault detection system, fault detection method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Loudspeaker fault monitoring system and vehicle Effective date of registration: 20200817 Granted publication date: 20170222 Pledgee: BEIQI FOTON MOTOR Co.,Ltd. Pledgor: Borgward Automotive (China) Co., Ltd. Registration number: Y2020990000977 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20210507 Granted publication date: 20170222 Pledgee: BEIQI FOTON MOTOR Co.,Ltd. Pledgor: Borgward Automotive (China) Co., Ltd. Registration number: Y2020990000977 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Vehicle loudspeaker fault monitoring system and vehicle Effective date of registration: 20210726 Granted publication date: 20170222 Pledgee: BEIQI FOTON MOTOR Co.,Ltd. Pledgor: Borgward Automotive (China) Co., Ltd. Registration number: Y2021990000644 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231123 Granted publication date: 20170222 Pledgee: BEIQI FOTON MOTOR Co.,Ltd. Pledgor: Beijing baowo Automobile Co.,Ltd.|Borgward Automotive (China) Co., Ltd. Registration number: Y2021990000644 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 |