CN207490926U - A kind of intellectual signal switching apparatus - Google Patents
A kind of intellectual signal switching apparatus Download PDFInfo
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- CN207490926U CN207490926U CN201721229132.7U CN201721229132U CN207490926U CN 207490926 U CN207490926 U CN 207490926U CN 201721229132 U CN201721229132 U CN 201721229132U CN 207490926 U CN207490926 U CN 207490926U
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- 238000004891 communication Methods 0.000 claims abstract description 37
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000036039 immunity Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000010295 mobile communication Methods 0.000 description 1
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Abstract
The utility model is related to a kind of intellectual signal switching apparatus, including communication module and first antenna, further include main control chip, control circuit and the second antenna, main control chip is connect by communication module with control circuit, the output terminal of control circuit is connect respectively with first antenna and the second antenna, in weak output signal or when have strong electromagnetic, main control chip compares first antenna and the signal strength of the second antenna, pass through the operation of the first controlling switch and the second controlling switch to control circuit, realize the intelligence switching of first antenna and the second antenna, to obtain the optimal signal of signal strength, enable communication module normal communication.
Description
Technical field
The utility model is related to signal switching field more particularly to a kind of intellectual signal switching apparatus.
Background technology
Communication module currently on the market uses built-in aerial, is single antenna pattern, more than the base station or place that position is good
Signal is fine, but has arrived that base station is few or the place of remote location, poor effect, many times has no idea to carry out data friendship
Mutually, a spring antenna or ordinary copper chip antenna are optimized, precise length and optimization wiring can improve signal
Effect, but mobile communication module, have environment many uncertain factors, and such as weak output signal when electromagnetic interference is too big, leads to
News module can only constantly be restarted by software to be carried out data transmission with reconnection communication, can not be fundamentally by changing on hardware
Become the mode of reception to solve the problems, such as.
Utility model content
The defects of in order to overcome the above-mentioned prior art, technical problem to be solved in the utility model are：A kind of energy is provided
The signal switching apparatus of enough intelligence switching communication modules, makes communication module when poor signal, can intelligently switch one
The antenna of relatively preferable signal achievees the purpose that communication module being capable of normal communication.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of intellectual signal switching dress
It puts, including communication module and first antenna, further includes main control chip, control circuit and the second antenna, the control circuit includes
Chip, the first inductance, the second inductance, the first triode and the second triode are controlled, the second pin of the control chip passes through
First inductance is connected with first antenna, and the third pin of the control chip is connected by the second inductance with the second antenna, described
4th pin of control chip is connected with the output terminal of the communication module, input terminal and the main control chip phase of the communication module
Even, the first pin of the control chip connects the collector of the first triode, and the 8th pin of the control chip connects the two or three
The collector of pole pipe, the 6th pin and the 9th pin of the control chip are grounded, the base stage of first triode and institute
The first controlling switch for stating main control chip is connected, the base stage of second triode and the second controlling switch of the main control chip
It is connected, the emitter of first triode and the second triode is grounded.
Further, the first antenna is spring antenna, and second antenna is ordinary copper chip antenna.
Further, the model RFASWMT2628ATF09L of the control chip.
Further, the model STM32F103RCT6 of the main control chip.
Further, the control circuit further includes the first capacitance, the second capacitance, third capacitance and the 4th capacitance, described
One end of first inductance is connected with one end of first capacitance, the other end ground connection of first capacitance, first inductance
Described one end be connected with the third pin of the control chip, the one of the other end of first inductance and second capacitance
End is connected, and the other end ground connection of second capacitance, the other end of first inductance is connected with the first antenna；Institute
The one end for stating the second inductance is connected with one end of the third capacitance, the other end ground connection of the third capacitance, second electricity
Described one end of sense is connected with the second pin of the control chip, the other end of second inductance and the 4th capacitance
One end is connected, and the other end ground connection of the 4th capacitance, the other end of second inductance is connected with second antenna.
Further, the control circuit further includes first resistor and second resistance, the 8th pin of the control chip
It is connected through first resistor with 1.8V direct currents, the first pin of the control chip is connected through second resistance with 1.8V direct currents.
The beneficial effects of the utility model are：In weak output signal or when have strong electromagnetic, by single antenna
It can influence communication module to carry out data transmission, the signal strength of main control chip comparison first antenna and the second antenna, by drawing high
Or the first controlling switch and the second controlling switch are dragged down, the break-make of the first triode and the second triode is controlled, realizes first
The intelligence switching of antenna and the second antenna, obtains the optimal signal of signal strength, enables communication module normal communication.
Description of the drawings
Fig. 1 show a kind of implementing circuit figure of intellectual signal switching apparatus according to the present utility model；
Fig. 2 show a kind of schematic diagram of intellectual signal switching apparatus according to the present utility model；
Label declaration：
1st, first antenna；2nd, the second antenna；3rd, communication module；4th, main control chip；5th, the first controlling switch；6th, the second control
Pin；
U1, control chip；L1, the first inductance；L2, the second inductance；Q1, the first triode；
Q2, the second triode；R1, first resistor；R2, second resistance C1, the first capacitance；
C2, the second capacitance；C3, third capacitance；C4, the 4th capacitance.
Specific embodiment
For technology contents, the objects and the effects of the utility model are described in detail, below in conjunction with embodiment and match
Attached drawing is closed to be explained.
The design of the utility model most critical is：In weak output signal or when have strong electromagnetic, by single day
Line, which can influence communication module, to carry out data transmission, and main control chip 4 compares the signal strength of 1 and second antenna 2 of first antenna, passes through
The first controlling switch 5 and the second controlling switch 6 are drawn high or drag down, control the first triode Q1's and the second triode Q2 is logical
It is disconnected, it realizes the intelligence switching of 1 and second antenna 2 of first antenna, obtains the optimal signal of signal strength, enable communication module 3
Normal communication.
It please refers to shown in Fig. 1 to Fig. 2, a kind of intellectual signal switching apparatus of embodiment according to the present utility model, wraps
Communication module is included, further includes main control chip 4, control circuit and the second antenna 2, the control circuit includes control chip U1, the
One inductance L1, the second inductance L2, the first triode Q1 and the second triode Q2, the second pin of the control chip U1 pass through the
One inductance L1 is connected with first antenna 1, and the third pin of the control chip U1 passes through the second inductance L2 and 2 phase of the second antenna
Even, the 4th pin of the control chip U1 is connected with the output terminal of the communication module 3, the input terminal of the communication module 3
It is connected with main control chip 4, the first pin of the control chip U1 meets the collector of the first triode Q1, the control chip U1
The 8th pin connect the collector of the second triode Q2, the 6th pin and the 9th pin of the control chip U1 are grounded, institute
The base stage for stating the first triode Q1 is connected with the first controlling switch 5 of the main control chip 4, the base stage of the second triode Q2
It is connected with the second controlling switch 6 of the main control chip 4, the emitter of the first triode Q1 and the second triode Q2 connect
Ground.
In weak output signal or when have strong electromagnetic, main control chip 4 can continuously record 10 current first antennas 1
Signal strength, and take the first average value, while draw high the voltage of the second controlling switch 6, be switched to the second antenna 2, Ran Houji
Signal strength during 10 the second antennas 2 of use is recorded, and takes the second average value, compares the first average value and the second average value, if
The difference of second average value of the signal strength of the first average value of the signal strength of first antenna 1 and the second antenna 2 be more than or
Equal to 3dbm, then that higher antenna of the average value of signal strength is switched to, and continue to communicate；If the difference is small
In 3dbm, then do not switch antenna；If communication is normal, can always using current antenna, until occur again weak output signal or
There is the situation of strong electromagnetic, then continue the signal strength for comparing two kinds of antennas, recycled with this, reach and obtain optimal signal day
Line.
As can be seen from the above description, the beneficial effects of the utility model are：In weak output signal or there is strong electromagnetic
When, it can influence communication module 3 by single antenna and carry out data transmission, main control chip 4 compares 1 and second antenna 2 of first antenna
Signal strength, first antenna 1 and second antenna 2 is realized by the break-make for controlling the first triode Q1 and the second triode Q2
Intelligence switching obtains the optimal signal of signal strength, enables 3 normal communication of communication module.
Further, the first antenna 1 is spring antenna, and second antenna 2 is ordinary copper chip antenna.It is retouched by above-mentioned
State it is found that
Spring antenna and ordinary copper chip antenna are different to the selectivity of environment, in weak output signal or have strong electromagnetic
When, spring antenna is different with the signal strength of ordinary copper chip antenna, and the optimal day of signal strength can be selected by comparison
Line.
Further, the model RFASWMT2628ATF09L of the control chip U1.
Seen from the above description, the control chip U1 is switch chip, is used to switch antenna in the utility model.
Further, the model STM32F103RCT6 of the main control chip.
Seen from the above description, the Master control chip is microcontroller, for control the one or three in the utility model
The break-make of pole pipe and the second triode.
Further, in Fig. 1, the control circuit further include the first capacitance C1, the second capacitance C2, third capacitance C3 and
4th capacitance C4, one end of the first inductance L1 are connected with one end of the first capacitance C1, and the first capacitance C1's is another
One end is grounded, and one end of the first inductance L1 is connected with the third pin of the control chip U1, the first inductance L1's
The other end is connected with one end of the second capacitance C2, the other end ground connection of the second capacitance C2, the first inductance L1's
The other end is connected with the first antenna 1；One end of the second inductance L2 is connected with one end of the third capacitance C3, described
The other end ground connection of third capacitance C3, one end of the second inductance L2 are connected with the second pin of the control chip U1, institute
The other end for stating the second inductance L2 is connected with one end of the 4th capacitance C4, the other end ground connection of the 4th capacitance C4, institute
The other end for stating the second inductance L2 is connected with second antenna 2.
Seen from the above description, the first inductance L1, the first capacitance C1 and the second capacitance C2 form the humorous of first antenna 1
Shake circuit, the resonance circuit of the second inductance L2, third capacitance C3 and the 4th capacitance C4 the second antennas 2 of composition, the resonance
The resonant frequency range of circuit is wide, strong interference immunity so that the strong interference immunity of the signal switching apparatus.
Further, the control circuit further includes first resistor R1 and second resistance R2, and the 8th of the control chip the
Pin is connected through second resistance R2 with 1.8V direct currents, and the first pin of the control chip is through first resistor R1 and 1.8V direct current phases
Even.
Seen from the above description, the control chip is given by the first resistor R1, second resistance R2 and 1.8V direct current
U1 provides a upper pull-up voltage, and first antenna 1 and the are realized by the break-make for controlling the first triode Q1 and the second triode Q2
The switching of two antennas 2.
It please refers to shown in Fig. 1 to Fig. 2, the embodiment one of the utility model is：
A kind of intellectual signal switching apparatus including communication module, further includes main control chip 4, control circuit and second day
Line 2, the control circuit include control chip U1, the first inductance L1, the second inductance L2, the first triode Q1 and the second triode
Q2, the second pin of the control chip U1 are connected by the first inductance L1 with first antenna 1, the third of the control chip U1
Pin is connected by the second inductance L2 with the second antenna 2, and the 4th pin of the control chip U1 is defeated with the communication module 3
Outlet is connected, and the input terminal of the communication module 3 is connected with main control chip 4, and the first pin of the control chip U1 connects first
The collector of triode Q1, the 8th pin of the control chip U1 connect the collector of the second triode Q2, the control chip
The 6th pin of U1 and the 9th pin are grounded, the base stage of the first triode Q1 and the first control of the main control chip 4
Pin 5 is connected, and the base stage of the second triode Q2 is connected with the second controlling switch 6 of the main control chip 4, and the described 1st
The emitter of pole pipe Q1 and the second triode Q2 are grounded.
A kind of above-mentioned intellectual signal switching apparatus, the first antenna 1 are spring antenna, and second antenna 2 is
Ordinary copper chip antenna, the model RFASWMT2628ATF09L of the control chip U1, the model of the main control chip
STM32F103RCT6, the control circuit further include the first capacitance C1, the second capacitance C2, third capacitance C3 and the 4th capacitance C4,
One end of the first inductance L1 is connected with one end of the first capacitance C1, the other end ground connection of the first capacitance C1, institute
The third pin that one end of the first inductance L1 is stated with the control chip U1 is connected, the other end of the first inductance L1 with it is described
One end of second capacitance C2 is connected, the other end of the second capacitance C2 ground connection, the other end of the first inductance L1 with it is described
First antenna 1 is connected；One end of the second inductance L2 is connected with one end of the third capacitance C3, the third capacitance C3's
The other end is grounded, and one end of the second inductance L2 is connected with the second pin of the control chip U1, the second inductance L2
The other end be connected with one end of the 4th capacitance C4, the other end of the 4th capacitance C4 ground connection, the second inductance L2
The other end be connected with second antenna 2, the control circuit further includes first resistor R1 and second resistance R2, the control
8th pin of chip is connected through second resistance R2 with 1.8V direct currents, it is described control chip the first pin through first resistor R1 with
1.8V direct currents are connected.
In weak output signal or when have strong electromagnetic, main control chip 4 can continuously record 10 current first antennas 1
Signal strength, and take the first average value, while draw high the voltage of the second controlling switch 6, be switched to the second antenna 2, Ran Houji
Signal strength during 10 the second antennas 2 of use is recorded, and takes the second average value, compares the first average value and the second average value, if
The difference of second average value of the signal strength of the first average value of the signal strength of first antenna 1 and the second antenna 2 be more than or
Equal to 3dbm, then that higher antenna of the average value of signal strength is switched to, and continue to communicate；If the difference is small
In 3dbm, then do not switch antenna；If communication is normal, can always using current antenna, until occur again weak output signal or
There is the situation of strong electromagnetic, then continue the signal strength for comparing two kinds of antennas, recycled with this, reach and obtain optimal signal day
Line.
When the first pin for controlling chip U1 is high level, the 8th pin is low level, the third of control chip U1 is drawn
Foot is connected, and the 5th pin and second pin are closed, and realizes that switching first antenna 1 emits signal；First as control chip U1 draws
When foot is low level, the 8th pin is high level, the 5th pin conducting of control chip U1, third pin and second pin are closed
It closes, is continuing with current demand signal antenna, do not make to switch；When the first pin of control chip U1 is high level, the 8th pin is high
During level, the second pin conducting of control chip U1, the 5th pin and third pin are closed, and realize that the second antenna 2 of switching emits
Signal.
In conclusion a kind of intellectual signal switching apparatus provided by the utility model, in weak output signal or has forceful electric power
When magnetic disturbance, it can influence communication module 3 by single antenna and carry out data transmission, main control chip 4 compares first antenna 1 and the
The signal strength of two antennas 2 realizes first antenna 1 and second by the break-make for controlling the first triode Q1 and the second triode Q2
The intelligence switching of antenna 2, obtains the optimal signal of signal strength, enables 3 normal communication of communication module.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalents made based on the specification and figures of the utility model are directly or indirectly used in relevant technology neck
Domain is equally included in the patent within the scope of the utility model.
Claims (6)
1. a kind of intellectual signal switching apparatus, including communication module and first antenna, which is characterized in that further include master control core
Piece, control circuit and the second antenna, the control circuit include control chip, the first inductance, the second inductance, the first triode and
Second triode, the second pin of the control chip is connected by the first inductance with first antenna, described to control the of chip
Three pins are connected by the second inductance with the second antenna, the output terminal of the 4th pin and the communication module of the control chip
It is connected, the input terminal of the communication module is connected with main control chip, and the first pin of the control chip connects the first triode
Collector, the 8th pin of the control chip connect the collector of the second triode, the 6th pin of the control chip and the
Nine pins are grounded, and the base stage of first triode is connected with the first controlling switch of the main control chip, and the described 2nd 3
The base stage of pole pipe is connected with the second controlling switch of the main control chip, the emitter of first triode and the second triode
It is grounded.
2. a kind of intellectual signal switching apparatus according to claim 1, which is characterized in that the first antenna is spring
Antenna, second antenna are ordinary copper chip antenna.
A kind of 3. intellectual signal switching apparatus according to claim 1, which is characterized in that the model of the control chip
For RFASWMT2628ATF09L.
A kind of 4. intellectual signal switching apparatus according to claim 1, which is characterized in that the model of the main control chip
For STM32F103RCT6.
5. a kind of intellectual signal switching apparatus according to claim 1, which is characterized in that the control circuit further includes
First capacitance, the second capacitance, third capacitance and the 4th capacitance, one end of first inductance and one end phase of first capacitance
Even, the other end ground connection of first capacitance, one end of first inductance are connected with the third pin of the control chip, institute
The other end for stating the first inductance is connected with one end of second capacitance, the other end ground connection of second capacitance, and described first
The other end of inductance is connected with the first antenna；One end of second inductance is connected with one end of the third capacitance, institute
The other end ground connection of third capacitance is stated, one end of second inductance is connected with the second pin for controlling chip, and described the
The other end of two inductance is connected with one end of the 4th capacitance, the other end ground connection of the 4th capacitance, second inductance
The other end be connected with second antenna.
6. a kind of intellectual signal switching apparatus according to claim 1, which is characterized in that the control circuit further includes
First resistor and second resistance, the 8th pin of the control chip are connected through first resistor with 1.8V direct currents, the control core
First pin of piece is connected through second resistance with 1.8V direct currents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721229132.7U CN207490926U (en) | 2017-09-22 | 2017-09-22 | A kind of intellectual signal switching apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721229132.7U CN207490926U (en) | 2017-09-22 | 2017-09-22 | A kind of intellectual signal switching apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207490926U true CN207490926U (en) | 2018-06-12 |
Family
ID=62482259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721229132.7U Expired - Fee Related CN207490926U (en) | 2017-09-22 | 2017-09-22 | A kind of intellectual signal switching apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207490926U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286708A (en) * | 2018-11-20 | 2019-01-29 | 漳州高新区远见产业技术研究有限公司 | A kind of RF communication device |
| CN112290983A (en) * | 2020-10-30 | 2021-01-29 | 深圳移航通信技术有限公司 | Antenna selection method and device |
| CN115622135A (en) * | 2022-12-13 | 2023-01-17 | 麦田能源有限公司 | Photovoltaic power generation system and control method thereof |
-
2017
- 2017-09-22 CN CN201721229132.7U patent/CN207490926U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109286708A (en) * | 2018-11-20 | 2019-01-29 | 漳州高新区远见产业技术研究有限公司 | A kind of RF communication device |
| CN112290983A (en) * | 2020-10-30 | 2021-01-29 | 深圳移航通信技术有限公司 | Antenna selection method and device |
| CN115622135A (en) * | 2022-12-13 | 2023-01-17 | 麦田能源有限公司 | Photovoltaic power generation system and control method thereof |
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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: 20180612 |