CN216649684U - Multi-channel communication system simplification control circuit - Google Patents
Multi-channel communication system simplification control circuit Download PDFInfo
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- CN216649684U CN216649684U CN202123246670.6U CN202123246670U CN216649684U CN 216649684 U CN216649684 U CN 216649684U CN 202123246670 U CN202123246670 U CN 202123246670U CN 216649684 U CN216649684 U CN 216649684U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model discloses a simplified control circuit of a multi-channel communication system, which comprises at least one dual-channel radio frequency switch on-off circuit, at least one logic gate circuit and a controller, wherein each dual-channel radio frequency switch on-off circuit is provided with an on-off control interface, the on-off control interface is electrically connected with the logic gate circuit, and the logic gate circuit is electrically connected with the controller, so that the number of interfaces of a microprocessor is saved, and the simplified control circuit has the advantages of simple structure and convenience in wiring.
Description
Technical Field
The utility model belongs to the technical field of communication, and particularly relates to a circuit for simplifying and controlling a multi-channel communication system.
Background
In a multi-channel wireless communication system, a problem that one of a plurality of channels is selected as a main channel is often faced, a common channel input is that a wide channel signal contains frequency band information of the plurality of channels, the wide channel signal is divided into a plurality of channels with different frequency bands through radio frequency switches, each channel outputs a main channel signal through a radio frequency switch after finishing filtering and amplifying functions, the number of channels is large, the number of radio frequency switches used in a link is large, each radio frequency switch is provided with an independent control interface, and therefore the number of control interfaces is large, for a microprocessor, the control is troublesome, and even the problem that the number of control interfaces of the microprocessor is insufficient is encountered.
SUMMERY OF THE UTILITY MODEL
To solve the above technical problem, the present invention provides a simplified control circuit for a multi-channel communication system.
The specific scheme is as follows:
the utility model provides a multichannel communication system simplifies circuit of control, includes at least one binary channels radio frequency switch deciliter circuit, at least one logic gate circuit and controller, all is provided with deciliter control interface on every binary channels radio frequency switch deciliter circuit, deciliter control interface with logic gate circuit electricity is connected, logic gate circuit is connected with the controller electricity.
The logic gate circuit is a single phase inverter gate, a control signal input end and a signal inversion output end are arranged on the single phase inverter gate, the dividing and combining control interface comprises a dividing control end and a combining control end, the controller is electrically connected with the controllable signal input end, the control signal input end is electrically connected with the dividing control end, and the signal inversion output end is electrically connected with the combining control end.
The dual-channel radio frequency switch combining and separating circuit comprises a radio frequency shunt module, a surface acoustic wave filter and a radio frequency combining module, wherein the shunt control end is electrically connected with the radio frequency shunt module, the radio frequency shunt module is electrically connected with the radio frequency combining module through the surface acoustic wave filter, and the radio frequency combining module is electrically connected with the combining control end.
The surface acoustic wave filter comprises a first passband frequency filter and a second passband frequency filter, wherein the first shunt output end is electrically connected with the second shunt input end through the second passband frequency filter, and the second shunt output end is electrically connected with the first shunt input end through the first passband frequency filter.
The radio frequency shunt module is also provided with a shunt input end, the radio frequency combiner module is also provided with a combiner output end, the shunt input end and the combiner output end are both provided with coupling capacitors, the shunt input end is respectively and electrically connected with a first shunt output end and a second shunt output end through the coupling capacitors, and the first combiner input end and the second combiner input end are respectively and electrically connected with the combiner output end through the coupling capacitors.
The passband frequency range of the first passband frequency filter is 832MHz-862MHz, and the passband frequency range of the second passband frequency filter is 902MHz-928 MHz.
The control circuit further comprises a power supply module, the power supply module comprises a 5V voltage stabilizing module and a 3.3V voltage stabilizing module, the 5V voltage stabilizing module is electrically connected with the dual-channel radio frequency switch dividing and combining circuit and the logic gate circuit respectively, and the 3.3V voltage stabilizing module is electrically connected with the controller.
The controller is a single chip microcomputer.
The utility model discloses a circuit for simplifying control of a multi-channel communication system.A logic gate circuit is arranged between a controller and each two-channel radio frequency switch dividing and combining circuit, the controller can realize the purpose of controlling a plurality of communication systems by adopting a single control interface through the logic gate circuit, the number of interfaces of a microprocessor is saved, and the circuit has the advantages of simple structure and convenient and fast wiring.
Drawings
Fig. 1 is a schematic view of the general structure of the present invention.
Fig. 2 is a schematic diagram of the structure of a logic gate circuit.
Fig. 3 is a schematic structural diagram of a two-channel rf switch summing circuit.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is obvious that the described embodiments are only a part of the implementations of the present invention, and not all implementations, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without any inventive work are within the scope of the present invention.
As shown in fig. 1, a simplified control circuit of a multi-channel communication system includes at least one dual-channel rf switch dividing and combining circuit 3, at least one logic gate circuit 2 and a controller 1, where each dual-channel rf switch dividing and combining circuit 3 is provided with a dividing and combining control interface, the dividing and combining control interface is electrically connected to the logic gate circuit 2, and the logic gate circuit 2 is electrically connected to the controller 1. In this embodiment, the control of a plurality of two-channel radio frequency switch dividing and combining circuits can be realized through a logic gate circuit, for example, a one-to-two channel or a two-to-four channel, and two logic gate circuits 2 and two-channel radio frequency switch dividing and combining circuits are required for the two-to-four channel.
As shown in fig. 2 to fig. 3, the logic gate circuit 2 is a single inverter gate, the single inverter gate is provided with a control signal input terminal 7 and a signal inversion output terminal 8, the combining and combining control interface includes a splitting control terminal 11 and a combining control terminal 18, the controller is electrically connected to the controllable signal input terminal 7, the control signal input terminal 7 is electrically connected to the splitting control terminal 11, and the signal inversion output terminal 8 is electrically connected to the combining control terminal 18.
In the present embodiment, the model of the logic gate circuit 2 is preferably SN74AHC1G14, and the SN74AHC1G14 device is a single inverter gate, and the device operates as a separate inverter gate. It is obvious to those skilled in the art that the level signal at the control signal input terminal 7 is always in the opposite phase with the signal inversion output terminal 8, for example, when the input signal at the control signal input terminal 7 is high, the output at the signal inversion output terminal 8 is low, and when the input signal at the control signal input terminal 7 is low, the output at the signal inversion output terminal 8 is high.
The level signal of the branch control terminal 11 and the level signal at the control signal input terminal 7 are always the same, and the level signal of the combination control terminal 18 is always the same as the level signal of the signal inverting output terminal 8, that is, the level signal at the branch control terminal 11 and the level signal at the combination control terminal 18 are also always in an inverted state.
As shown in fig. 3, the dual-channel rf switch dividing and combining circuit 3 includes a rf branching module 4, a surface acoustic wave filter 5, and a rf combining module 6, wherein the branching control terminal 11 is electrically connected to the rf branching module 4, the rf branching module 4 is electrically connected to the rf combining module 6 through the surface acoustic wave filter 5, and the rf combining module 6 is electrically connected to the combining control terminal 18.
The radio frequency branching module 4 is provided with a first branching output end 12 and a second branching output end 13, the radio frequency combining module 6 is provided with a first combining input end 16 and a second combining input end 17, the surface acoustic wave filter 5 comprises a first passband frequency filter 14 and a second passband frequency filter 15, the first branching output end 12 is electrically connected with the second combining input end 17 through the second passband frequency filter 15, and the second branching output end 13 is electrically connected with the first combining input end 16 through the first passband frequency filter 14.
In this embodiment, the radio frequency splitting module 4 and the radio frequency combining module 6 are both RFSW6024 models, and the RFSW6024 is a broadband single-pole double-throw switch of Qorvo corporation, and supports a frequency range of 5MHz to 6000 MHz. The model of the first channel frequency filter 14 is preferably SF8018, the passband frequency of the SF8018 is 832MHz-862MHZ, the model of the second channel frequency filter 15 is preferably SF9135, and the passband frequency of the SF9135 is 902MHz-928 MHz.
The radio frequency branching module 4 is further provided with a branching input end 10, the radio frequency combining module 6 is further provided with a combining output end 19, the branching input end 10 and the combining output end 19 are both provided with coupling capacitors 9, the branching input end 10 is respectively and electrically connected with a first branching output end 12 and a second branching output end 13 through the coupling capacitors 9, and the first combining input end 16 and the second combining input end 17 are both electrically connected with the combining output end 19 through the coupling capacitors 9.
In this embodiment, the input signal in the branch input terminal 10 includes a signal with two complex frequency bands of 800MHz and 900MHz, and is divided into two channels when passing through the video branch module 4, the two channels select the first branch output terminal 12 or the second branch output terminal 13 through the branch control terminal 11, other spurious signals to be output as a main channel are filtered by the first channel frequency filter 14 or the second channel frequency filter 15, and then pass through the radio frequency combining module 6 to be combined into one channel output, the radio frequency combining module 6 selects the first combining input terminal 16 or the second combining input terminal 17 to output through the combining control terminal 18, and only the 800MHz frequency band signal or the 900MHz frequency band signal is included in the first combining input terminal 16 or the second combining input terminal 17.
When the shunt control end 11 is at a high level, the first shunt output end 12 is turned on, and when the shunt control end 11 is at a low level, the second shunt output end 13 is turned on;
when the combiner control terminal 18 is at a high level, the first combiner input terminal 16 is turned on, and when the combiner control terminal 18 is at a low level, the second combiner input terminal 17 is turned on;
if a radio frequency signal of 800MHz is required, the controller 1 sends a low level signal to the shunt control end 11 at this time, due to the inverting action of the logic gate circuit 2, the combining control end 18 is a high level signal, at this time, the second shunt output end 13 and the first combining input end 16 are opened, the signal selects a radio frequency signal of 800MHz through the first channel frequency filter 14, and the radio frequency signal is output through the combining output end 19 of the radio frequency combining module 6;
if a 900MHz radio frequency signal is required, the controller 1 sends a high level signal to the shunt control end 11 at this time, due to the inverting action of the logic gate circuit 2, the combining control end 18 is a low level signal, at this time, the first shunt output end 12 and the second combining input end 17 are opened, the signal selects a 900MHz radio frequency signal through the second channel frequency filter 15, and the signal is output through the combining output end 19 of the radio frequency combining module 6;
still include power module among the control circuit, power module includes 5V voltage stabilizing module and 3.3V voltage stabilizing module, wherein, 5V voltage stabilizing module is connected with binary channels radio frequency switch divide-shut circuit 3 and logic gate circuit 2 electricity respectively, 3.3V voltage stabilizing module is connected with controller 1 electricity. The 5V voltage stabilizing module is preferably 7805, and the 3.3V voltage stabilizing module is preferably AMS 1117.
The controller 1 is a single chip microcomputer, and in the embodiment, the type of the single chip microcomputer is preferably STM 32.
The utility model discloses a circuit for simplifying control of a multi-channel communication system.A logic gate circuit is arranged between a controller and each two-channel radio frequency switch dividing and combining circuit, the controller can realize the purpose of controlling a plurality of communication systems by adopting a single control interface through the logic gate circuit, the number of interfaces of a microprocessor is saved, and the circuit has the advantages of simple structure and convenient and fast wiring.
The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (8)
1. A circuit for simplified control of a multi-channel communication system, comprising: including at least one binary channels radio frequency switch deciliter circuit (3), at least one logic gate circuit (2) and controller (1), all be provided with deciliter control interface on every binary channels radio frequency switch deciliter circuit (3), deciliter control interface with logic gate circuit (2) electricity is connected, logic gate circuit (2) are connected with controller (1) electricity.
2. The circuit for simplified control of a multi-channel communication system according to claim 1, wherein: the logic gate circuit (2) is a single phase inverter gate, a control signal input end (7) and a signal inversion output end (8) are arranged on the single phase inverter gate, the dividing and combining control interface comprises a dividing control end (11) and a combining control end (18), the controller is electrically connected with the controllable signal input end (7), the control signal input end (7) is electrically connected with the dividing control end (11), and the signal inversion output end (8) is electrically connected with the combining control end (18).
3. The circuit for simplified control of a multi-channel communication system according to claim 2, wherein: the dual-channel radio frequency switch combining and separating circuit (3) comprises a radio frequency shunt module (4), a surface acoustic wave filter (5) and a radio frequency combining module (6), wherein the shunt control end (11) is electrically connected with the radio frequency shunt module (4), the radio frequency shunt module (4) is electrically connected with the radio frequency combining module (6) through the surface acoustic wave filter (5), and the radio frequency combining module (6) is electrically connected with the combining control end (18).
4. A circuit for simplified control of a multi-channel communication system according to claim 3, characterized in that: the radio frequency branching module (4) is provided with a first branching output end (12) and a second branching output end (13), the radio frequency combining module (6) is provided with a first combining input end (16) and a second combining input end (17), the surface acoustic wave filter (5) comprises a first passband frequency filter (14) and a second passband frequency filter (15), the first branching output end (12) is electrically connected with the second combining input end (17) through the second passband frequency filter (15), and the second branching output end (13) is electrically connected with the first combining input end (16) through the first passband frequency filter (14).
5. The circuit for simplified control of a multi-channel communication system according to claim 4, wherein: the radio frequency shunt module (4) is further provided with a shunt input end (10), the radio frequency combiner module (6) is further provided with a combiner output end (19), the shunt input end (10) and the combiner output end (19) are respectively provided with a coupling capacitor (9), the shunt input end (10) is respectively and electrically connected with the first shunt output end (12) and the second shunt output end (13) through the coupling capacitor (9), and the first combiner input end (16) and the second combiner input end (17) are respectively and electrically connected with the combiner output end (19) through the coupling capacitor (9).
6. The circuit for simplified control of a multi-channel communication system according to claim 4, wherein: the passband frequency range of the first passband frequency filter (14) is 832MHz-862MHz, and the passband frequency range of the second passband frequency filter (15) is 902MHz-928 MHz.
7. The circuit for simplified control of a multi-channel communication system according to claim 1, wherein: the circuit for simplifying and controlling the multi-channel communication system further comprises a power supply module, wherein the power supply module comprises a 5V voltage stabilizing module and a 3.3V voltage stabilizing module, the 5V voltage stabilizing module is respectively electrically connected with the dual-channel radio frequency switch on-off circuit (3) and the logic gate circuit (2), and the 3.3V voltage stabilizing module is electrically connected with the controller (1).
8. The circuit for simplified control of a multi-channel communication system according to claim 1, wherein: the controller (1) is a single chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123246670.6U CN216649684U (en) | 2021-12-22 | 2021-12-22 | Multi-channel communication system simplification control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123246670.6U CN216649684U (en) | 2021-12-22 | 2021-12-22 | Multi-channel communication system simplification control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN216649684U true CN216649684U (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123246670.6U Active CN216649684U (en) | 2021-12-22 | 2021-12-22 | Multi-channel communication system simplification control circuit |
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| CN (1) | CN216649684U (en) |
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2021
- 2021-12-22 CN CN202123246670.6U patent/CN216649684U/en active Active
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