CN205945906U - On -vehicle processing apparatus of frequency modulation FM signal - Google Patents
On -vehicle processing apparatus of frequency modulation FM signal Download PDFInfo
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- CN205945906U CN205945906U CN201620925887.XU CN201620925887U CN205945906U CN 205945906 U CN205945906 U CN 205945906U CN 201620925887 U CN201620925887 U CN 201620925887U CN 205945906 U CN205945906 U CN 205945906U
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Abstract
The embodiment of the utility model discloses on -vehicle processing apparatus of frequency modulation FM signal. An on -vehicle processing apparatus of frequency modulation FM signal include: bluetooth module, frequency modulation FM receiving module and little the control unit MCU, bluetooth module with frequency modulation FM receiving module respectively with little the control unit links to each other, little the control unit still links to each other with frequency modulation FM emission module, wherein, little the control unit is used for, according to bluetooth module received the signal of telecommunication to be in frequency modulation FM receiving module with switch between the bluetooth module. The utility model discloses can realize when producing the incoming telegram that the car -mounted device can automatic switch -over to the mode of answering a call, and then does not need driver manually operation through little the control unit's switching function, increase the security of driving and simplify the incoming telegram simultaneously and answer the operation, improve the convenience of sending a telegram here and answering.
Description
Technical field
This utility model is related to vehicle-mounted modulating FM field of signal processing, more particularly, to a kind of on-board processing of modulating FM signal
Device.
Background technology
With the continuous improvement of living standard, automobile has become as the indispensable walking-replacing tool of people, in driving conditions
In, broadcast listening or appreciate music when releiving driver's intense strain, traffic safety can be improved to a certain extent.
In prior art, the data interaction between mobile unit and car machine is realized by modulating FM signal, by bluetooth work(
Enable the interconnection between this equipment and mobile phone, thus realizing the communication between car machine and mobile phone.
However, the modulating FM emitter of mobile unit is communicated with car machine using fixed frequency 80.5MHz.When driver uses
When car machine listens to the radio, (as frequency 90.8MHz) has phone incoming call, then this telephone prompts information can be by Bluetooth transmission to vehicle-mounted
Equipment.But, the modulating FM due to car machine is taken by 90.8MHz channel, and therefore car machine will not receive mobile unit and passes through admittedly
Determine the phone information that frequency 80.5MHz transmits.
Now, user needs manually the channel switch of car machine modulating FM to receive calls to 80.5MHz.User cuts manually
Platform, increases operating procedure, complex operation；Meanwhile, driving procedure is cut platform manually and will produce potential safety hazard.
Utility model content
This utility model completes to solve of the prior art above-mentioned not enough, and the purpose of this utility model is
Propose a kind of on-board processing device of modulating FM signal, make in driving procedure more easily incoming call answering, increase the peace driven
Quan Xing.
For reaching this purpose, this utility model employs the following technical solutions：
A kind of on-board processing device of modulating FM signal, including：Bluetooth module, modulating FM receiver module and micro-control unit
MCU, described bluetooth module is connected with described micro-control unit respectively with described modulating FM receiver module, and described micro-control unit is also
It is connected with modulating FM transmitter module；Wherein, described micro-control unit is used for, and receives incoming telephone signal according to described bluetooth module and exists
Switch between described modulating FM receiver module and described bluetooth module.
Further, described bluetooth module is connected with described micro-control unit by bluetooth decoder module.
Further, described modulating FM receiver module is connected with modulating FM antenna.
Further, the on-board processing device of described modulating FM signal also includes at least one display lamp, described at least
One display lamp and described bluetooth module, described modulating FM receiver module, described modulating FM transmitter module and described microcontroller
At least one of unit connects.
Further, at least one display lamp described includes the first display lamp, described first display lamp and described microcontroller
Unit connects；And/or,
At least one display lamp described includes the second display lamp and the 3rd display lamp, described second display lamp and described bluetooth
Module connects, and described 3rd display lamp is connected with described modulating FM receiver module.
Further, the on-board processing device of described modulating FM signal also includes power module, and described power module divides
It is not connected with described bluetooth module, described modulating FM receiver module, described modulating FM transmitter module and described micro-control unit.
Further, described power module is connected with vehicle-mounted cigarette lighter.
Further, the on-board processing device of described modulating FM signal also includes housing, described bluetooth module, described frequency modulation
FM receiver module, described modulating FM transmitter module and described micro-control unit connect in described housing.
Further, the operational hierarchy of described micro-control unit is M0, M1, M2, M3 or M4.
Further, at least one in the following agreement of agreement that described bluetooth module uses：Hands-free specification HFP, bluetooth
Audio transmission model agreement A2DP, audio/video remotely control specification AVRCP, telephone directory book access protocal PBAP and standard
Parallel interface SPP.
A kind of on-board processing device of modulating FM signal described in the utility model, by connecing bluetooth module and modulating FM
Receive module to be connected with micro-control unit respectively, this micro-control unit is also connected with modulating FM transmitter module；This micro-control unit root
Receive incoming telephone signal according to bluetooth module to switch between modulating FM receiver module and bluetooth module.When micro-control unit inspection
When measuring the incoming telephone signal that terminal sends to bluetooth module, no matter whether signal source is modulating FM receiver module, micro-control unit
All signal source is set to bluetooth module, then the incoming telephone signal of terminal is transferred to by car machine by FM transmitter module.Existing skill
In art, micro-control unit cannot be carried out switching, and produces and leads to human pilot to need manual switching because of incoming telephone signal and FM signal conflict
Problem.This utility model can be realized when producing incoming call, car-mounted device can be automatic by the handoff functionality of micro-control unit
Switch to the pattern of receiving calls, enter without driver's manual operation, increase the safety driven and simplify incoming call sound behaviour simultaneously
Make, improve the convenience of incoming call sound.
Brief description
In order to the technical scheme of this utility model exemplary embodiment is clearly described, below in description embodiment
The required accompanying drawing used does one and simply introduces.Obviously, the accompanying drawing introduced is this utility model part to be described
The accompanying drawing of embodiment, rather than whole accompanying drawings, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the on-board processing device of modulating FM signal that this utility model embodiment one provides
Figure；
Fig. 2 is a kind of structural representation of the on-board processing device of modulating FM signal that this utility model embodiment two provides
Figure；
Fig. 3 is a kind of structural representation of the on-board processing device of modulating FM signal that this utility model embodiment three provides
Figure；
Fig. 4 is that a kind of operation principle of the on-board processing device of modulating FM signal that this utility model embodiment three provides is shown
It is intended to.
Specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, implement below with reference to this utility model
Accompanying drawing in example, by specific embodiment, is fully described by the technical solution of the utility model.Obviously, described enforcement
Example is a part of embodiment of the present utility model, rather than whole embodiments, based on embodiment of the present utility model, this area
The every other embodiment that those of ordinary skill obtains on the premise of not making creative work, each falls within this utility model
Protection domain within.
Embodiment one
Fig. 1 gives a kind of structural representation of the on-board processing device of modulating FM signal of the present embodiment one offer.As
Shown in Fig. 1, the on-board processing device of modulating FM signal includes：Bluetooth module 110, modulating FM receiver module 130 and microcontroller list
First MCU140, bluetooth module 110 is connected with micro-control unit 140 respectively with modulating FM receiver module 130, micro-control unit 140
Also it is connected 150 with modulating FM transmitter module；Wherein, micro-control unit 140 is used for, and receives telecommunications according to bluetooth module 110
Number switch between modulating FM receiver module 130 and bluetooth module 110.
In the present embodiment, bluetooth module 110 is used for the signal of terminal (as mobile phone), such as navigation signal, the sound of music
Frequency signal or incoming telephone signal etc. are transferred to mobile unit, are then transferred to car machine by modulating FM transmitter module 150, finally by
Vehicle audio plays to user, and it is connected with micro-control unit 140.The agreement that bluetooth module 110 uses is in following agreements
At least one：Hands-free specification (Hands-free Profile, HFP), Bluetooth audio frequency mode agreement (Advanced Audio
Distribution Profile, A2DP), audio/video remotely control specification protocol (Audio/Video Remote
Control Profile, AVRCP), telephone directory book access protocal (Phonebook Access Profile, PBAR) and mark
Quasi- parallel interface (Standara Parallel Port, SPP).Wherein, hands-free specification (Hands-free Profile, HFP),
Bluetooth equipment can be allowed to control phone such as answer, hang up, rejection and phonetic dialing etc..Standard parallel interface SPP can provide 50K
The typical transmission speed of Bits/ second, its highest transmission speed is up to the 150K Bits/ second.The parallel input of 9Bits can be carried out
(present onboard parallel interface typically supports the maximum input up to 17Bits of transmitted in both directions event of data port) and 12Bits's
Parallel output.The mode that Nibble (4bits) or Byte (8bits) generally may be selected carries out input data, a kind of also Bi-
The transmitted in both directions mode of directional, this mode needs hardware supported.SPP hardware is by 8 data line, 4 control lines and
5 bar state lines are formed, and they correspond to three different depositors to carry out the read-write operation of data respectively.
Modulating FM receiver module 130, for receiving the broadcast singal of the different frequency of different power stations transmitting, itself and microcontroller
Unit 140 is connected.When driver does not use the resource in mobile phone, modulating FM radio station can be listened to by FM reception module 130,
Then car machine is transferred to by modulating FM transmitter module 150, station broadcast information is play by the vehicle audio eventually through car machine
To user.
Micro-control unit 140, for receiving incoming telephone signal in modulating FM receiver module 130 He according to bluetooth module 110
Switch between bluetooth module 110.When user has phone to call in when listening to modulating FM, phone information is led to by mobile phone terminal
Cross bluetooth module 110 and be transferred to micro-control unit 140, micro-control unit 140 enables interrupt pin, interrupt receiving mould by modulating FM
The signal that block 130 transmits, is switched to and receives the mobile phone signal being received by bluetooth module 110, then sent out by modulating FM
Penetrate module 150 by this signal transmission to car machine, point out user mobile phone to have incoming call, user can utilize mobile unit or mobile phone operation
Selection is answered or is hung up.After end of conversation, micro-control unit 140 judges that bluetooth module 110 has not had signal input or reception
Listened the end of conversation information of car machine input to user, interrupt pin stops interrupting, and micro-control unit 140 continues to modulating FM
The signal that receiver module 130 transmits, user continues to listen to the broadcast message that modulating FM receiver module 130 receives.Micro-control
The operational hierarchy of unit 140 processed can be M0, M1, M2, M3 or M4, and the performance of operational hierarchy M0～M4 is gradually upgraded, high computing
The micro-control unit of rank suffers from very big advantage at aspects such as arithmetic speed, precision, but also can consume more energy simultaneously
Amount, therefore when selecting, can select suitable operational hierarchy according to the concrete condition of equipment, reach on the basis meeting demand
On, not waste of resource.
Preferably, bluetooth module 110 is connected with micro-control unit 140 by bluetooth decoder module 120.Bluetooth decoder module
120 are used for the deciphering Bluetooth signal that bluetooth module 110 receives is decoded, and the Bluetooth signal of encryption can improve bluetooth and lead to
The safety of letter.
Preferably, modulating FM receiver module 130 is connected with modulating FM antenna 170, and modulating FM antenna 170 can be externally positioned type
If Telescopic metal collapsible mast, helical antenna or soft line type antenna etc. or internally-arranged type are as circuit board making, coil
Making and magnetic antenna etc..Modulating FM antenna can strengthen radio station broadcast signal, improve modulating FM receiver module and receive broadcast message
Ability.
Preferably, the on-board processing device of modulating FM signal also includes housing 160, and bluetooth module 110, modulating FM receive mould
Block 130, modulating FM transmitter module 150 and micro-control unit 140 connect in housing 160.Housing to be positioned over the inside
Modules play the effect of protection.
In the present embodiment, by bluetooth module is connected with micro-control unit respectively with modulating FM receiver module, this is micro-
Control unit is also connected with modulating FM transmitter module；This micro-control unit receives incoming telephone signal in modulating FM according to bluetooth module
Switch between receiver module and bluetooth module.When micro-control unit detects the incoming telephone signal that terminal sends to bluetooth module
When, no matter whether signal source is modulating FM receiver module, signal source is all set to bluetooth module, then passes through by micro-control unit
The incoming telephone signal of terminal is transferred to car machine by modulating FM transmitter module.In prior art, micro-control unit cannot be carried out switching, and produces
Life leads to human pilot to need the problem of manual switching because of incoming telephone signal and FM signal conflict.This utility model can pass through microcontroller
The handoff functionality of unit, realizes when producing incoming call, car-mounted device can automatically switch to the pattern of receiving calls, and enters without driving
The person's of sailing manual operation, increases the safety driven and simplifies incoming call sound operation simultaneously, improve the convenience of incoming call sound.
Embodiment two
Fig. 2 gives a kind of structural representation of the on-board processing device of modulating FM signal of the present embodiment two offer.With
Based on above-described embodiment, the on-board processing device of modulating FM signal also includes at least one display lamp 210, display lamp 210 with
At least one of bluetooth module 110, modulating FM receiver module 130, modulating FM transmitter module 150 and micro-control unit 140
Connect.
As shown in Fig. 2 display lamp 210 is connected with modulating FM transmitter module 150, for pointing out user now modulating FM transmitting
The signal that module is transmitted into car machine is mobile phone signal or modulating FM broadcast, can arrange different display lamp flashing state to enter
Row Division identification, such as when display lamp 210 length is bright, represents and is listening to modulating FM broadcast, when display lamp flashes, represent handss
Machine has incoming call, and the pattern of flicker can be (blinking intervals can be 1 second) such as quick flashing (blinking intervals can be 0.5 second), slow flash, refers to
The color showing lamp 210 can be arbitrary color in red, green and yellow etc..
Optionally, display lamp 210 can also be with bluetooth module 110, modulating FM receiver module 130 and micro-control unit 140
In any one or several module be connected.The number of display lamp can also be 2,3 even more than such as installing two fingers
When showing lamp, can one be set to green, another is set to redness, when green light lights, represents that to listen to modulating FM wide
Broadcast, when red light lights, represent that mobile phone has phone to come in, two display lamps can be length bright it is also possible to be flicker, or
The long bright flicker of person one.Two display lamps can be connected it is also possible to be connected with disparate modules with same module.
Preferably, display lamp 210 includes the first display lamp 211, and the first display lamp 211 is connected with micro-control unit 140；
And/or,
Display lamp 210 includes the second display lamp 212 and the 3rd display lamp 213, the second display lamp 212 and bluetooth module 110
Connect, the 3rd display lamp 213 is connected with modulating FM receiver module 130.
When device only has the first display lamp 211, the first display lamp 211 is individually used for pointing out user's micro-control unit 140
The signal receiving is mobile phone signal or modulating FM broadcast, can make a distinction knowledge by arranging the different flashing state of display lamp
Not.User is pointed out now to adjust when having the first display lamp 211, the second display lamp 212 and the 3rd display lamp 213 to be simultaneously used in device
When the signal that frequency FM transmitter module is transmitted into car machine is mobile phone signal or modulating FM broadcast, it is different for can arranging three lamps
Color, the such as first display lamp 211 is green, and the second display lamp 212 is redness, and the 3rd display lamp 213 is yellow, works as green light
When, represent that car-mounted device is opened, micro-control unit 140 is started working, when amber light and green light light simultaneously, representing user
Broadcast listening, when Huang, the lamp went out, when red light lights, represents that mobile phone has phone to throw into.
In the present embodiment, by launching at least one display lamp with bluetooth module, modulating FM receiver module, modulating FM
In module and micro-control unit, at least one is connected, and allow users to more intuitively to identify now vehicle-mounted reception is frequency modulation
Broadcast singal that FM receiver module receives or the mobile phone incoming call signal that bluetooth module receives, improve ease for use.
Embodiment three
Fig. 3 gives a kind of structural representation of the on-board processing device of modulating FM signal of the present embodiment three offer.With
Based on above-described embodiment, the on-board processing device of modulating FM signal also includes power module 310, power module 310 respectively with
Bluetooth module 110, modulating FM receiver module 130, modulating FM transmitter module 150 and described micro-control unit 140 connect.
Power module 310, for bluetooth module 110, modulating FM receiver module 130, modulating FM transmitter module 150 and
Described micro-control unit 140 supply electric energy is it is ensured that the normal operation of above-mentioned module.Power module 310 can be independent power supply
Unit, can be such as chargeable reusable lithium battery, ickel-cadmium cell and Ni-MH battery etc. or single use
Galvanic element, battery size can be selected according to the needs of device, can be such as No. 1 battery, No. 2 batteries, No. 5 batteries
Or No. 7 batteries etc., independent power module not only can ensure that car-mounted device normally runs, and changes conveniently.
Preferably, power module 310 is connected with vehicle-mounted cigarette lighter.Power module 310, will by being connected with vehicle-mounted cigarette lighter
Electric energy in automobile supplies vehicle-mounted modules, makes their normal works.Use under scene at this, power module 310 plays phase
When in the effect of transformator, the voltage conversion that cigar lighter socket is provided is the running voltage of above-mentioned module, for above-mentioned module
Use.Now in the on-board processing device of modulating FM signal, independent power supply unit need not be set, and then reduces cost.
Fig. 4 shows the fundamental diagram of the on-board processing device of modulating FM signal, as indicated at 4, when user is listening to FM
When broadcast has phone to call in, incoming information is transferred to the bluetooth module 110 of mobile unit by mobile phone by audio signal 410,
Micro-control unit 140 is switched to by the signal that reception modulating FM receiver module 130 transmits and receives what bluetooth module 110 transmitted
Signal, the signal transmission that then bluetooth module 110 is transmitted by micro-control unit 140 is to modulating FM transmitter module 150, frequency modulation
FM transmitter module 150 transmits the signal to the vehicle-mounted FM radio receiver module 420 of car machine again, broadcasts finally by vehicle audio
This signal is played back to point out user mobile phone to have incoming call by place system 430, and user can utilize mobile unit or mobile phone operation
Answer or hang up.
Above are only preferred embodiment of the present utility model and the know-why used.This utility model is not limited to here
Described specific embodiment, the various significant changes that can carry out for a person skilled in the art, readjusts and substitutes all
Without departing from protection domain of the present utility model.Therefore although carried out more detailed to this utility model by above example
Thin explanation, but this utility model is not limited only to above example, in the case of conceiving without departing from this utility model, also
Other Equivalent embodiments more can be included, and scope of the present utility model is determined by the scope of claim.
Claims (10)
1. a kind of on-board processing device of modulating FM signal is it is characterised in that include：Bluetooth module, modulating FM receiver module and
Micro-control unit MCU, described bluetooth module is connected with described micro-control unit respectively with described modulating FM receiver module, described micro-
Control unit is also connected with modulating FM transmitter module；Wherein, described micro-control unit is used for, and is received according to described bluetooth module
Incoming telephone signal switches between described modulating FM receiver module and described bluetooth module.
2. the on-board processing device of modulating FM signal according to claim 1 is it is characterised in that described bluetooth module passes through
Bluetooth decoder module is connected with described micro-control unit.
3. the on-board processing device of modulating FM signal according to claim 1 is it is characterised in that described modulating FM receives mould
Block is connected with modulating FM antenna.
4. the on-board processing device of modulating FM signal according to claim 1 refers to it is characterised in that also including at least one
Show lamp, at least one display lamp described and described bluetooth module, described modulating FM receiver module, described modulating FM transmitter module with
And at least one of described micro-control unit connects.
5. modulating FM signal according to claim 4 on-board processing device it is characterised in that described at least one instruction
Lamp includes the first display lamp, and described first display lamp is connected with described micro-control unit；And/or,
At least one display lamp described includes the second display lamp and the 3rd display lamp, described second display lamp and described bluetooth module
Connect, described 3rd display lamp is connected with described modulating FM receiver module.
6. the on-board processing device of modulating FM signal according to claim 1 is it is characterised in that also include power module,
Described power module respectively with described bluetooth module, described modulating FM receiver module, described modulating FM transmitter module and described
Micro-control unit connects.
7. the on-board processing device of modulating FM signal according to claim 6 is it is characterised in that described power module and car
Cigarette lighter connects.
8. the on-board processing device of modulating FM signal according to claim 1 is it is characterised in that also including housing, described
Bluetooth module, described modulating FM receiver module, described modulating FM transmitter module and described micro-control unit connect positioned at described
In housing.
9. the on-board processing device of modulating FM signal according to claim 1 is it is characterised in that described micro-control unit
Operational hierarchy is M0, M1, M2, M3 or M4.
10. the on-board processing device of modulating FM signal according to claim 1 is it is characterised in that described bluetooth module makes
At least one in the following agreement of agreement：Hands-free specification HFP, Bluetooth audio frequency mode agreement A2DP, audio/video are remote
Process control specification AVRCP, telephone directory book access protocal PBAP and standard parallel interface SPP.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620925887.XU CN205945906U (en) | 2016-08-23 | 2016-08-23 | On -vehicle processing apparatus of frequency modulation FM signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620925887.XU CN205945906U (en) | 2016-08-23 | 2016-08-23 | On -vehicle processing apparatus of frequency modulation FM signal |
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| CN205945906U true CN205945906U (en) | 2017-02-08 |
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| CN201620925887.XU Active CN205945906U (en) | 2016-08-23 | 2016-08-23 | On -vehicle processing apparatus of frequency modulation FM signal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110875750A (en) * | 2018-08-31 | 2020-03-10 | 华为技术有限公司 | FM antenna circuit and terminal equipment |
-
2016
- 2016-08-23 CN CN201620925887.XU patent/CN205945906U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110875750A (en) * | 2018-08-31 | 2020-03-10 | 华为技术有限公司 | FM antenna circuit and terminal equipment |
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