CN206313758U - A kind of modulating emission circuit - Google Patents
A kind of modulating emission circuit Download PDFInfo
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- CN206313758U CN206313758U CN201621360170.1U CN201621360170U CN206313758U CN 206313758 U CN206313758 U CN 206313758U CN 201621360170 U CN201621360170 U CN 201621360170U CN 206313758 U CN206313758 U CN 206313758U
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Abstract
The utility model discloses a kind of modulating emission circuit, the circuit includes：FM transmission antenna for launching FM signal；Signal amplification circuit, is electrically connected at FM transmission antenna；FM transmission chip, is electrically connected at signal amplification circuit；Transmitting microprocessor, is electrically connected at FM transmission chip；Tranmitting frequency code switch for adjusting launching frequency, is electrically connected at transmitting microprocessor；For the audio signal socket of grafting COBBAIF, FM transmission chip is electrically connected at；For the audio Bluetooth socket of grafting bluetooth module, FM transmission chip is electrically connected at.It is, by setting different frequent points with FM transmission audio signal, to not only increase the antijamming capability of telecontrol engineering to implement the beneficial effects of the utility model, also improves the reliability of smart home communication；Modulating emission circuit is applied in smart home, the adventure in daily life of people is improved, Intelligent housing function is enriched.
Description
Technical field
The utility model is related to frequency-modulated communication techniques field, more particularly to a kind of modulating emission circuit.
Background technology
With the popularization of music light source technology, increasing music light source gets their way into people's lives.Pass through at present
The technology of Intelligent household remote control music light source is more ripe, but this telecontrol engineering antijamming capability is weak, networking inconvenience, reliable
Property is general.And in the prior art, it is difficult to the networking function between multiple music light sources is realized, more sound is sent not over frequency modulation
The technical scheme of frequency signal.
Utility model content
The purpose of this utility model is to provide a kind of modulating emission circuit, and solving cannot in smart home in the prior art
Audio signal is sent by frequency modulation and telecontrol engineering antijamming capability is weak, networking inconvenience, the general problem of reliability.
The technical solution of the utility model is realized as follows：
On the one hand, the utility model provides a kind of modulating emission circuit, including：
FM transmission antenna for launching FM signal；
Signal amplification circuit, is electrically connected at the FM transmission antenna；
FM transmission chip, is electrically connected at the signal amplification circuit；
Transmitting microprocessor, is electrically connected at the FM transmission chip；
Tranmitting frequency code switch for adjusting launching frequency, is electrically connected at the transmitting microprocessor；
For the audio signal socket of grafting COBBAIF, the FM transmission chip is electrically connected at；
For the audio Bluetooth socket of grafting bluetooth module, the FM transmission chip is electrically connected at.
In modulating emission circuit described in the utility model, also include：
Electric supply installation, is electrically connected at the signal amplification circuit, the FM transmission chip, the audio Bluetooth socket
And the transmitting microprocessor.
In modulating emission circuit described in the utility model, the electric supply installation includes：
Power supply circuit for providing first voltage, is electrically connected at the signal amplification circuit；
For accessing the first voltage to export the mu balanced circuit of second voltage, its input is connected to the power supply electricity
Road, its output end is electrically connected at the FM transmission chip, the audio Bluetooth socket and the transmitting microprocessor.
In modulating emission circuit described in the utility model, the tranmitting frequency code switch is parallel with one another including three
Sub switch, to switch the launching frequency of the FM transmission antenna.
In modulating emission circuit described in the utility model, also include：
Transmitting LED for showing FM signal emission state, is electrically connected at the transmitting microprocessor.
In modulating emission circuit described in the utility model, the signal amplification circuit includes：
First triode, its ground level is electrically connected at the FM transmission chip；
Second triode, its ground level is electrically connected at the colelctor electrode of first triode；
Filter circuit, its one end is electrically connected at the colelctor electrode of second triode, and the other end is electrically connected at described
FM transmission antenna.
In modulating emission circuit described in the utility model, also include：
Socket drive circuit, its one end is electrically connected at the FM transmission chip, and the other end is electrically connected at the sound
Frequency signal plug and the audio Bluetooth socket.
Therefore, the beneficial effects of the utility model are, by setting different frequent points with FM transmission audio signal, not only to carry
The antijamming capability of telecontrol engineering high, also improves the reliability of smart home communication；Modulating emission circuit is applied in intelligence
In energy household, the adventure in daily life of people is improved, enrich Intelligent housing function.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
A kind of module frame chart of modulating emission circuit that Fig. 1 is provided for the utility model；
The knot of FM transmission antenna, signal amplification circuit and electric supply installation that Fig. 2 is provided for the embodiment of the utility model one
Structure schematic diagram；
FM transmission chip that Fig. 3 is provided for the embodiment of the utility model one, transmitting microprocessor, tranmitting frequency coding are opened
The structural representation of pass, audio signal socket and audio Bluetooth socket.
Specific embodiment
In order to be more clearly understood to technical characteristic of the present utility model, purpose and effect, accompanying drawing will be below compareed
Describe specific embodiment of the present utility model in detail.It should be appreciated that following explanation is only the specific of the utility model embodiment
Illustrate, protection domain of the present utility model should not be limited with this.
The utility model provides a kind of modulating emission circuit 100 and FM transmission method, it is intended that by setting not
With frequency with FM transmission audio signal, the antijamming capability of telecontrol engineering is not only increased, also improve smart home communication
Reliability；Modulating emission circuit is applied in smart home, the adventure in daily life of people is improved, Intelligent housing is enriched
Function.
Referring to Fig. 1, a kind of module frame chart of modulating emission circuit 100 that Fig. 1 is provided for the utility model, the FM transmission
Circuit 100 includes that FM transmission antenna 1, signal amplification circuit 2, FM transmission chip 3, transmitting microprocessor 4, tranmitting frequency are compiled
Code switch 5, audio signal socket 6 and audio Bluetooth socket 7.
FM transmission antenna 1 is used to launch FM signal；The tuning range of its transmitting is 88MHz-110MHz.
Signal amplification circuit 2 is electrically connected at the FM transmission antenna 1；Fig. 2 is participated in, Fig. 2 is real the utility model one
The structural representation of the FM transmission antenna 1, signal amplification circuit 2 and electric supply installation 8 of example offer is applied, signal amplification circuit 2 is wrapped
Include the first triode 21, the second triode 22 and filter circuit 23, also including inductance L10, inductance L11, electric capacity C26, electric capacity C4,
Electric capacity C5, inductance L6, electric capacity C3, resistance R25, resistance R1, electric capacity C38, inductance L14 and inductance L1.
One end of filter circuit 23 is electrically connected at the colelctor electrode of second triode 22, and the other end is electrically connected at institute
State FM transmission antenna 1.The filter circuit 23 includes electric capacity C36, electric capacity C37, electric capacity C33, electric capacity C35, electric capacity C27, inductance
One end of L12 and inductance L13, electric capacity C37 are connected to modulating emission circuit 100, and the other end of electric capacity C37 is connected to electric capacity C36
One end and inductance L13 one end, the other end of inductance L13 is connected to one end of inductance L12, and electric capacity C35 is connected to inductance L12
Between inductance L13, the other end of inductance L12 is connected to one end of C27, electric capacity C33 be connected to inductance L12 in electric capacity C12 it
Between.
Electric capacity C27 is connected to one end of the colelctor electrode, one end of inductance L11 and electric capacity C26 of the second triode 22, inductance
The other end of L11 be connected to one end of inductance L10, the other end of electric capacity C26, one end of electric capacity C4, one end of electric capacity C5 and
One end of inductance L6, the ground level of the second triode 22 is connected to one end of resistance R25 and one end of electric capacity C3, and electric capacity C3's is another
End is connected to the other end of inductance L6 and the colelctor electrode of the first triode 21, and the ground level of the first triode 21 is connected to electric capacity C1's
One end and one end of resistance R1, the other end of electric capacity C1 are connected to one end and the interface 201 of inductance L1, and the other end of resistance R1 connects
One end of electric capacity C38 and one end of inductance L14 are connected to, the other end of inductance L14 is connected to interface 202, and interface 202 is used to access
+ 3.6V voltages.
FM transmission chip 3 is electrically connected at the signal amplification circuit 2；Referring to Fig. 3, Fig. 3 is real the utility model one
FM transmission chip 3, transmitting microprocessor 4, tranmitting frequency code switch 5, audio signal socket 6 and the audio for applying example offer are blue
The structural representation of eye cutting seat 7.FM transmission chip 3 is U4, and the port RFO of U4 is connected to interface 201, its port VIO and end
Mouth VDD is connected to one end of one end of electric capacity C6, one end of electric capacity C7 and resistance R3, and the other end of resistance R3 is connected to interface
202 accessing+3.6V voltages.
Transmitting microprocessor 4 is electrically connected at the FM transmission chip 3；Transmitting microprocessor 4 is MCU1, the end of MCU1
The port 1 of port SDA and port SCL, MCU1 that mouth 5 and port 6 are respectively connecting to U4 is connected to one end of electric capacity C2, electric capacity
One end of C14 and one end of resistance R4, the other end of resistance R4 are connected to interface 202 to access+3.6V voltages.
Tranmitting frequency code switch 5 is used to adjust launching frequency, is electrically connected at the transmitting microprocessor 4；Transmitting frequency
Rate code switch 5 includes three sub switchs parallel with one another, to switch the launching frequency of the FM transmission antenna 1.These three
Sub switch is respectively sub switch A, sub switch B and sub switch C, and one end of sub switch A, sub switch B and sub switch C are grounded, son
The other end for switching A is connected to the port 3 of MCU1 by resistance R2, and the other end of sub switch B is connected to MCU2 by resistance R19
Port 4, the other end of sub switch C is connected to the port 7 of MCU2 by resistance R22.
Audio signal socket 6 is used for grafting COBBAIF, is electrically connected at the FM transmission chip 3；Preferably, the tune
The transmit-receive radio road that takes place frequently 100 also includes socket drive circuit 9, and its one end is electrically connected at the FM transmission chip 3, and the other end is electrical
It is connected to the audio signal socket 6 and the audio Bluetooth socket 7, i.e. socket drive circuit 9 is connected to audio signal and connects
Between mouth and FM transmission chip 3.Referring to Fig. 3, socket drive circuit 9 includes electric capacity C20, electric capacity C19, resistance R9, resistance
R11, inductance L8, inductance L9, resistance R8, resistance R10, electric capacity C17, electric capacity C18, resistance R6 and resistance R7.Audio signal socket 6
It is AUX-IN sockets, i.e. audio input interface, for receiving the effect audio communication gone out handled by external effect device, or serves as extra
Input sound channel.Audio signal socket 6 includes the end 62 of first end 61 and second, and first end 61 passes sequentially through electric capacity C20, resistance
R11, inductance L8, electric capacity C17 and resistance R6 are connected to the port ARI of U4, and resistance R10 is connected between inductance L8 and electric capacity C17；
Second end 62 passes sequentially through the port ALI that electric capacity C19, resistance R9, inductance L9, electric capacity C18 and resistance R7 are connected to U4, resistance R8
It is connected between inductance L9 and electric capacity C18.
Audio Bluetooth socket 7 is used for grafting bluetooth module, is electrically connected at the FM transmission chip 3.Audio bluetooth is inserted
Seat 7 is BLE2, including port AL-I, port AR-I, port GND and the power port for accessing+3.6V voltages, port AL-I
The first end 61 that electric capacity C39 and resistance R13 is connected to audio signal socket 6 is passed sequentially through, port AR-I passes sequentially through electric capacity C40
And resistance R24 is connected to the second end 62 of audio signal socket 6.One end of resistance R23 and resistance R26 are respectively connecting to audio letter
The end 62 of first end 61 and second of number socket 6, the other end ground connection of resistance R23 and resistance R26.
For example, the audio input of modulating emission circuit 100 has 2 tunnels：Wired input (is input into) by audio signal socket 6
Be wirelessly input to (be input into by audio Bluetooth socket 7), wired input by the AUX interfaces on transmitter, can by television set,
The audio signal of CD-ROM device or other equipment is accessed；It is wirelessly input to by bluetooth connection mode, the mobile phone of Bluetooth pairing can be broadcast
The audio signal put is launched, for multiple receiving unit playbacks, so as to realize the interaction of light and music.May be mounted at room
By the interior place close to audio, such as television set, by setting modulating emission circuit 100, by the sound of television set by the tune
The transmit-receive radio road that takes place frequently 100 is sent to multiple receiving units, and multiple receiving units can be while sounding.
Preferably, the modulating emission circuit 100 also includes electric supply installation 8, and electric supply installation 8 is electrically connected at the signal and puts
Big circuit 2, the FM transmission chip 3, the audio Bluetooth socket 7 and the transmitting microprocessor 4.Referring to Fig. 2, the confession
Electric installation 8 includes power supply circuit 81 and mu balanced circuit 82.
Power supply circuit 81 is used to provide first voltage, is electrically connected at the signal amplification circuit 2.
Mu balanced circuit 82 is used to access the first voltage to export second voltage, and its input is connected to the power supply electricity
Road 81, its output end is electrically connected at the FM transmission chip 3, the audio Bluetooth socket 7 and the transmitting microprocessor
4.Second voltage is preferably+3.6V.
Preferably.Referring to Fig. 3, the modulating emission circuit 100 also includes the hair for showing FM signal emission state
LED TX-LED is penetrated, the transmitting microprocessor 4 is electrically connected at.The positive pole of transmitting LED TX-LED is connected by resistance R5
To the port 2 of MCU1.
Further it is provided that a kind of FM transmission method, using modulating emission circuit as described above 100, including step S1-
S5：
S1, connect by the grafting bluetooth module of the audio Bluetooth socket 7 or by the grafting audio of the audio signal socket 6
Mouth incoming audio signal；
S2, the audio signal is converted to by FM signal by the FM transmission chip 3；
S3, by it is described transmitting microprocessor 4 and the tranmitting frequency code switch 5 control the FM transmission antenna 1
Launching frequency；Step S3 includes sub-step S31-S32：
S31, three states of sub switch that the tranmitting frequency code switch 5 is obtained by the transmitting microprocessor 4；
Referring to Fig. 3, three sub switchs are respectively sub switch A, sub switch B and sub switch C, and signal 1 is produced during switch closure, are produced during disconnection
Raw signal 0, therefore three sub switchs can realize eight kinds of different signals, such as following table by switch combination：
| f1 | f2 | f3 | f4 | f5 | f6 | f7 | f8 | |
| A | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
| B | 0 | 0 | 1 | 1 | 0 | 0 | 1 | 1 |
| C | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 |
By three various combinations of sub switch, 8 kinds of different frequencies are can correspond to.
S32, the state of three sub switchs of foundation determine the launching frequency.For example, f1 is 88MHz, as sub switch A
Disconnect, sub switch B disconnects, when sub switch C is closed, the working frequency points of FM transmission antenna 1 are the 88MHz of f1, by that analogy.
S4, amplified by the FM signals of the signal amplification circuit 2 pairs；
S5, amplified FM signal is launched according to the launching frequency by the FM transmission antenna 1.
Preferably, the FM transmission method also includes step S6-S7：
S6, by first voltage for the signal amplification circuit 2 is powered；
S7, by second voltage be the FM transmission chip 3, the audio Bluetooth socket 7 and the transmitting microprocessor
Device 4 is powered.
There is provided herein the various operations of embodiment.In one embodiment, described one or operation may be constructed one
The computer-readable instruction stored on individual or computer-readable medium, it will be so that computing device be held when being performed by electronic equipment
The row operation.Describing the order of some or all of operations, to should not be construed as to imply that these operations necessarily order dependent
's.It will be appreciated by those skilled in the art that the alternative sequence of the benefit with this specification.Furthermore, it is to be understood that not being institute
Having operation must exist in each embodiment provided in this article.
And, word " preferred " used herein means serving as example, example or illustration.Feng Wen is described as " preferably
" any aspect or design be not necessarily to be construed as than other aspect or design it is more favourable.Conversely, the use purport of word " preferred "
Concept is being proposed in a concrete fashion.Term "or" as used in this application is intended to mean the "or" for including and non-excluded
"or".I.e., unless otherwise or clear from the context, " X uses A or B " means that nature includes any one of arrangement.
That is, if X uses A；X uses B；Or X uses A and B both, then " X uses A or B " is met in foregoing any example.
And, although the disclosure, people in the art has shown and described relative to one or implementation
Member will appreciate that equivalent variations and modification based on the reading and understanding to the specification and drawings.The disclosure includes all such
Modification and modification, and be limited only by the scope of the following claims.Particularly with by said modules (such as element, resource
Deng) various functions that perform, the term for describing such component is intended to correspond to the specified function (example for performing the component
Functionally of equal value such as it) random component (unless otherwise instructed), even if in structure with perform shown in this article
The open structure of the function in disclosed exemplary implementations is not equivalent.Although additionally, the special characteristic of the disclosure phase
It is disclosed for the only one in some implementations, but this feature can be for given or application-specific with such as
It is to expect one or other combinations of features with other favourable implementations.And, with regard to term " including ", " having ", " contain
Have " or its deformation be used in specific embodiment or claim for, such term be intended to with term " include " phase
As mode include.
Each functional unit in the utility model embodiment can be integrated in a processing module, or each list
Unit is individually physically present, it is also possible to which two or more units are integrated in a module.Above-mentioned integrated module both can be with
Realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.If the integrated module is with software
The form of functional module is realized and as independent production marketing or when using, it is also possible to which storage is deposited in an embodied on computer readable
In storage media.Storage medium mentioned above can be read-only storage, disk or CD etc..Above-mentioned each device or system,
The method in correlation method embodiment can be performed.
In sum, although the utility model is disclosed above with preferred embodiment, but above preferred embodiment is not used
To limit the utility model, one of ordinary skill in the art is not departing from spirit and scope of the present utility model, can make
Various changes are defined with retouching, therefore protection domain of the present utility model by the scope that claim is defined.
Claims (7)
1. a kind of modulating emission circuit, it is characterised in that including：
FM transmission antenna for launching FM signal；
Signal amplification circuit, is electrically connected at the FM transmission antenna；
FM transmission chip, is electrically connected at the signal amplification circuit；
Transmitting microprocessor, is electrically connected at the FM transmission chip；
Tranmitting frequency code switch for adjusting launching frequency, is electrically connected at the transmitting microprocessor；
For the audio signal socket of grafting COBBAIF, the FM transmission chip is electrically connected at；
For the audio Bluetooth socket of grafting bluetooth module, the FM transmission chip is electrically connected at.
2. modulating emission circuit according to claim 1, it is characterised in that also include：
Electric supply installation, is electrically connected at the signal amplification circuit, the FM transmission chip, the audio Bluetooth socket and institute
State transmitting microprocessor.
3. modulating emission circuit according to claim 2, it is characterised in that the electric supply installation includes：
Power supply circuit for providing first voltage, is electrically connected at the signal amplification circuit；
For accessing the first voltage to export the mu balanced circuit of second voltage, its input is connected to the power supply circuit,
Its output end is electrically connected at the FM transmission chip, the audio Bluetooth socket and the transmitting microprocessor.
4. modulating emission circuit according to claim 1, it is characterised in that the tranmitting frequency code switch includes three
Sub switch parallel with one another, to switch the launching frequency of the FM transmission antenna.
5. modulating emission circuit according to claim 1, it is characterised in that also include：
Transmitting LED for showing FM signal emission state, is electrically connected at the transmitting microprocessor.
6. modulating emission circuit according to claim 1, it is characterised in that the signal amplification circuit includes：
First triode, its ground level is electrically connected at the FM transmission chip；
Second triode, its ground level is electrically connected at the colelctor electrode of first triode；
Filter circuit, its one end is electrically connected at the colelctor electrode of second triode, and the other end is electrically connected at the frequency modulation
Transmitting antenna.
7. modulating emission circuit according to claim 1, it is characterised in that also include：
Socket drive circuit, its one end is electrically connected at the FM transmission chip, and the other end is electrically connected at the audio letter
Number socket and the audio Bluetooth socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621360170.1U CN206313758U (en) | 2016-12-12 | 2016-12-12 | A kind of modulating emission circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621360170.1U CN206313758U (en) | 2016-12-12 | 2016-12-12 | A kind of modulating emission circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206313758U true CN206313758U (en) | 2017-07-07 |
Family
ID=59251523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621360170.1U Expired - Fee Related CN206313758U (en) | 2016-12-12 | 2016-12-12 | A kind of modulating emission circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206313758U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872233A (en) * | 2016-12-12 | 2018-04-03 | 深圳市蚂蚁雄兵物联技术有限公司 | A kind of modulating emission circuit and FM transmission method |
| CN110830058A (en) * | 2019-09-27 | 2020-02-21 | 福建工程学院 | Frequency modulation transmitter device based on Bluetooth communication |
-
2016
- 2016-12-12 CN CN201621360170.1U patent/CN206313758U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872233A (en) * | 2016-12-12 | 2018-04-03 | 深圳市蚂蚁雄兵物联技术有限公司 | A kind of modulating emission circuit and FM transmission method |
| WO2018107673A1 (en) * | 2016-12-12 | 2018-06-21 | 深圳佳比泰智能照明股份有限公司 | Frequency-modulated transmitting circuit and frequency-modulated transmitting method |
| CN110830058A (en) * | 2019-09-27 | 2020-02-21 | 福建工程学院 | Frequency modulation transmitter device based on Bluetooth communication |
| CN110830058B (en) * | 2019-09-27 | 2022-02-22 | 福建工程学院 | Frequency modulation transmitter device based on Bluetooth communication |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20201212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |