CN211124028U - Communication equipment expansion circuit and device - Google Patents
Communication equipment expansion circuit and device Download PDFInfo
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- CN211124028U CN211124028U CN202020086984.0U CN202020086984U CN211124028U CN 211124028 U CN211124028 U CN 211124028U CN 202020086984 U CN202020086984 U CN 202020086984U CN 211124028 U CN211124028 U CN 211124028U
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Abstract
The application relates to a communication equipment extension circuit, device, this circuit includes: the power supply module is used for supplying power to the main control module; the plurality of different communication interfaces are respectively connected with the main control module and used for receiving original signals input by the first external equipment and transmitting the original signals to the main control module, wherein the different communication interfaces receive different types of original signals; the interaction module is connected with the main control module and used for receiving the user instruction and transmitting the user instruction to the main control module; the main control module is connected with the output interfaces and used for processing the received original signals according to user instructions to obtain target signals; the plurality of output interfaces are used for transmitting the corresponding target signals to the second external equipment. The technical scheme of this application can realize the interconversion of multiple different communication signals, can be used for the communication conversion, can be used for the interface extension again, and the multifunctionality is applicable to multiple application scenario.
Description
Technical Field
The application relates to the technical field of electronic appliances, in particular to a communication equipment expansion circuit and a communication equipment expansion device.
Background
The serial converter is a communication interface converter which completes data conversion from RS232, RS485, RS422 or TT L to TCP/IP or USB, the serial distributor can be used for expanding the serial number to expand the communication port so as to simplify the system, the IO controller can realize a system for controlling the input or output switching value and high and low levels.
Disclosure of Invention
In order to solve the technical problem or at least partially solve the technical problem, embodiments of the present application provide an expansion circuit and an apparatus for a communication device.
In a first aspect, an embodiment of the present application provides an expansion circuit for communication equipment, where the circuit includes: the system comprises a plurality of different communication interfaces, a main control module, a plurality of output interfaces, an interaction module and a power supply module;
the power supply module is used for supplying power to the main control module;
the plurality of different communication interfaces are respectively connected with the main control module and used for receiving original signals input by the first external equipment and transmitting the original signals to the main control module, wherein the different communication interfaces receive different types of original signals;
the interaction module is connected with the main control module and used for receiving the user instruction and transmitting the user instruction to the main control module;
the main control module is connected with the output interfaces and used for processing the received original signals according to user instructions to obtain target signals;
the plurality of output interfaces are used for transmitting the corresponding target signals to the second external equipment.
Optionally, the main control module includes a control circuit and an output switching circuit;
the control circuit is respectively connected with the plurality of different communication interfaces and the interaction module and is used for receiving an original signal and a user instruction and converting the original signal into an intermediate signal;
the output switching circuit is respectively connected with the control circuit and the plurality of output interfaces and used for receiving a user instruction through the control circuit, converting the intermediate signal into a target signal according to the user instruction and transmitting the target signal to the second external equipment through the corresponding output interface.
Optionally, the plurality of different communication interfaces comprise AN RS485 communication interface, AN RS232 communication interface, a TT L communication interface, a L AN communication interface and a USB communication interface, the control circuit comprises a processing circuit, AN RS485 isolation conversion circuit, AN RS232 conversion circuit, a TT L conversion circuit, AN Ethernet interface circuit, a USB interface circuit and a pin header, the RS485 isolation conversion circuit, the RS232 conversion circuit, the TT L conversion circuit, the Ethernet interface circuit, the USB interface circuit and the pin header are connected with the processing circuit, the output conversion circuit comprises AN isolation conversion circuit, a pin header and a plurality of output modules, the pin header and the output modules are connected with the isolation conversion circuit, and the processing circuit is connected with the isolation;
the RS485 isolation conversion circuit is connected with the RS485 communication interface and used for processing the original signal received by the RS485 communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit;
the RS232 conversion circuit is connected with the RS232 communication interface and used for processing the original signal received by the RS232 communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit;
the TT L conversion circuit is connected with the TT L communication interface and used for processing the original signal received by the TT L communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit;
the Ethernet interface circuit is connected with the L AN communication interface and is used for processing the original signal received by the L AN communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit;
the USB interface circuit is connected with the USB communication interface and used for processing the original signal received by the USB communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit;
the processing circuit is connected with the interactive module and used for receiving a user instruction through the interactive module, converting the processing signal according to the user instruction to obtain an intermediate signal and transmitting the intermediate signal to the isolation conversion circuit through the pin header and the seat header;
the isolation conversion circuit is used for converting the intermediate signal into a target signal according to a user instruction and transmitting the target signal to the corresponding output module;
each output module in the plurality of output modules is connected with a corresponding output interface in the plurality of output interfaces and is used for transmitting the corresponding target signal to the second external device through the corresponding output interface.
Optionally, the intermediate signal is a TT L level signal.
Optionally, the control circuit further includes a DCDC power supply circuit, and the DCDC power supply circuit supplies power to the output switching circuit through the pin header and the socket header.
Optionally, the plurality of output modules include a TT L output module and/or an RS485 output module and/or an RS232 output module, and the plurality of output interfaces include a TT L output interface and/or an RS485 output interface and/or an RS232 output interface correspondingly connected to the TT L output module and/or the RS485 output module and/or the RS232 output module.
Optionally, the circuit further includes an IO output interface and an IO input interface, and the output switching circuit further includes an IO output module connected to the IO output interface and an IO input module connected to the IO input interface.
Optionally, the interaction module communicates with the main control module through a TT L interface.
Optionally, the circuit further includes an indication module, where the indication module is respectively connected to the plurality of output interfaces and is configured to indicate the operating states of the output interfaces.
In a second aspect, an embodiment of the present application provides a communication device expansion apparatus, which includes the communication device expansion circuit described in any one of the foregoing.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the technical scheme of the application can realize the interconversion of various different communication signals, can be used for communication conversion and interface expansion, has multiple functions, and is suitable for various application occasions; multiple functions are combined and integrated, so that the system is simplified.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a block diagram of an expansion circuit of a communication device according to an embodiment;
fig. 2 is a block diagram of an expansion circuit of a communication device according to another embodiment;
fig. 3 is a block diagram of an expansion circuit of a communication device according to another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a block diagram of AN embodiment of AN expansion circuit of a communication device, and referring to fig. 1, the expansion circuit of the communication device includes a plurality of different communication interfaces, a main control module, a plurality of output interfaces, AN interaction module, and a power module, the host of the communication expander is the main control module, the plurality of different communication interfaces include AN RS485 communication interface, AN RS232 communication interface, a TT L communication interface, a L AN communication interface, and a USB communication interface, the interaction module is AN android upper computer, the plurality of output interfaces include AN RS485 output interface and/or AN RS232 output interface and a TT L output interface, and the power module is AN external power source connected through a power socket.
The plurality of different communication interfaces receive the original signal transmitted by the first external device through respective communication protocols. For example: the original signal transmitted by the first external equipment through the RS485 communication interface is an original signal conforming to the RS485 communication protocol; the original signal transmitted by the first external device through the RS232 communication interface is an original signal conforming to the RS232 communication protocol. The first external device includes a plurality of different types of external devices.
For example, the user instruction can be a signal output by an RS485 interface, a signal output by an RS232 interface, a signal output by a TT L interface, or signals output by 2 or 3 interfaces of the RS485 interface, the RS232 interface and the TT L interface.
The communication expander host is used for converting an original signal transmitted by a certain communication interface into a target signal according to a user instruction and transmitting the target signal to a second external device through a corresponding output interface, if the target signal is a signal conforming to an RS485 communication protocol, the target signal is transmitted to the second external device through an RS485 output interface, if the target signal is a signal conforming to an RS232 communication protocol, the target signal is transmitted to the second external device through an RS232 output interface, if the target signal is a signal conforming to a TT L communication protocol, the target signal is transmitted to the second external device through a TT L output interface, and if the target signal comprises 2 or 3 of the signal conforming to the RS485 communication protocol, the signal conforming to the RS232 communication protocol and the signal conforming to a TT L communication protocol, the target signal is transmitted to the second external device through the corresponding output interface.
In one embodiment, the communication device expansion circuit may further include an IO input interface and an IO output interface connected to the communication expander host, where the IO input interface and the IO output interface are used as expansion interfaces for a user to expand the circuit according to actual needs.
The IO input interface may be an 8-way IO input interface, and the IO output interface may be an 8-way IO output interface.
In one embodiment, the power module supplies power to the interaction module through the main control module. Namely, the external power supply supplies power to the android upper computer through the power socket and the communication expander host. And a power supply interface for supplying power to the android upper computer is arranged on the communication expander host.
In one embodiment, the plurality of output interfaces may include 5 RS485 output interfaces or 5 RS232 output interfaces and 2 TT L output interfaces, but may also be other combinations of one or more of RS485 output interfaces, RS232 output interfaces and TT L output interfaces.
In one embodiment, the android upper computer and the communication extender host communicate through a TT L interface.
Fig. 2 and 3 are block diagrams of an expansion circuit of a communication device according to another embodiment, fig. 2 and 3 show that a main control module includes a control circuit and an output switching circuit, fig. 2 is a block diagram of the control circuit, and fig. 3 is a block diagram of the output switching circuit, the control circuit includes a processing circuit, and an RS485 isolation conversion circuit, an RS232 conversion circuit, a TT L conversion circuit, an ethernet interface circuit, a USB interface circuit, and a pin header connected to the processing circuit, and referring to fig. 2, the processing circuit includes an MCU micro control unit in fig. 2, and of course, the processing circuit may further include some peripheral circuits (not shown in the drawings).
The RS485 isolation conversion circuit is connected with the RS485 communication interface and used for processing the original signal received by the RS485 communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit.
The RS232 conversion circuit is connected with the RS232 communication interface and used for processing the original signal received by the RS232 communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit.
The TT L conversion circuit is connected with the TT L communication interface and used for processing the original signals received by the TT L communication interface to obtain corresponding processing signals and transmitting the processing signals to the processing circuit.
The Ethernet interface circuit is connected with the L AN communication interface and used for processing the original signal received by the L AN communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit.
The USB interface circuit is connected with the USB communication interface and used for processing the original signal received by the USB communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit.
The processing circuit is connected with the android upper computer and used for receiving a user instruction through the android upper computer, converting the processing signal according to the user instruction to obtain an intermediate signal, and transmitting the intermediate signal to the isolation conversion circuit through the pin header and the seat header.
Referring to fig. 2 and 3, the intermediate signal is a TT L level signal, and the pin header can have 16 pins to transmit a TT L level signal.
In one embodiment, the control circuit further comprises a DCDC power supply circuit, and the DCDC power supply circuit supplies power to the output switching circuit through the pin header and the socket header. The DCDC power supply circuit provides 5V or 3.3V level for the output switching circuit through the pin header and the socket header. The pin header may have 4 pins to transmit 5V or 3.3V levels. The pin header is connected with part of pins of the MCU.
In one embodiment, the plurality of output modules comprise a TT L output module and/or an RS485 output module and/or an RS232 output module, and the plurality of output interfaces comprise a TT L output interface and/or an RS485 output interface and/or an RS232 output interface correspondingly connected with the TT L output module and/or the RS485 output module and/or the RS232 output module.
Specifically, the output modules correspond to the output interfaces one to one. And the target signal output by each output module is transmitted to the second external equipment through the corresponding output interface.
In one embodiment, the output switching circuit further includes an IO output module and an IO input module. The IO output module is connected with the IO output interface, and the IO input module is connected with the IO input interface.
In one embodiment, the communication device expansion circuit further comprises indication modules, and each indication module is connected with one output interface respectively and used for indicating the working state of the output interface. For example, when the output interface has data or signal transmission, the indicator light is indicated to be on, and when the output interface has no data or signal transmission, the indicator light is indicated to be off.
The communication equipment expansion circuit can also receive original signals of other communication protocols, can convert the original signals into target signals of other communication protocols, and is not limited to the protocols of RS485, RS232, TT L and the like.
In one embodiment there is also provided a communications equipment extension device comprising a communications equipment extension circuit as described in any preceding claim.
When the device is used, the corresponding circuit module on the control circuit correspondingly processes RS485/RS232/TT L signals or Ethernet signals and USB signals and transmits the signals to the MCU, the user operates the upper computer to control the MCU to convert the processed signals into TT L level on the appointed TT L pin, or controls the MCU to output corresponding IO signals to the IO output pin according to the input signals, or controls the MCU to identify high and low level on the IO input pin, correspondingly processes according to the level signals and converts the signals into corresponding TT L level signals on the appointed TT L pin.
The output switching circuit is connected with the control circuit through two groups of row seats, and the control circuit mainly comprises a group of 8-channel IO input modules, a group of 8-channel IO output modules, five groups of independent RS485 or RS232 output modules and 2 groups of independent TT L output modules.
The output switching circuit is arranged on the switching board, the switching board can be designed into a plurality of versions according to different requirements, the main function of the output switching circuit is to transmit TT L level in an isolation mode on the row seat and convert the level into RS485 or RS232 level, or transmit the level outwards in a TT L level mode after isolation, the output switching circuit also has the function of transmitting the external IO input or output level and the IO level of the corresponding pin on the row seat in an isolation mode, and the isolated IO signal is not limited by the level voltage of the external IO signal within a certain range.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A communication device expansion circuit, the circuit comprising: the system comprises a plurality of different communication interfaces, a main control module, a plurality of output interfaces, an interaction module and a power supply module;
the power supply module is used for supplying power to the main control module;
the plurality of different communication interfaces are respectively connected with the main control module and used for receiving original signals input by first external equipment and transmitting the original signals to the main control module, wherein different communication interfaces receive different types of original signals;
the interaction module is connected with the main control module and used for receiving a user instruction and transmitting the user instruction to the main control module;
the main control module is connected with the output interfaces and used for processing the received original signals according to the user instruction to obtain target signals;
the plurality of output interfaces are used for transmitting the corresponding target signals to a second external device.
2. The circuit of claim 1, wherein the master control module comprises a control circuit, an output switching circuit;
the control circuit is respectively connected with the plurality of different communication interfaces and the interaction module and is used for receiving an original signal and a user instruction and converting the original signal into an intermediate signal;
the output switching circuit is respectively connected with the control circuit and the plurality of output interfaces and is used for receiving the user instruction through the control circuit, converting the intermediate signal into a target signal according to the user instruction and transmitting the target signal to second external equipment through the corresponding output interface.
3. The circuit of claim 2, wherein the plurality of different communication interfaces comprise AN RS485 communication interface, AN RS232 communication interface, a TT L communication interface, a L AN communication interface and a USB communication interface, the control circuit comprises a processing circuit, AN RS485 isolation conversion circuit, AN RS232 conversion circuit, a TT L conversion circuit, AN Ethernet interface circuit, a USB interface circuit and a pin header, the RS485 isolation conversion circuit, the RS232 conversion circuit, the TT L conversion circuit, the Ethernet interface circuit, the USB interface circuit and the pin header are connected with the processing circuit, the output conversion circuit comprises AN isolation conversion circuit, a pin header and a plurality of output modules, and the processing circuit is connected with the isolation conversion circuit through the pin header and the pin header;
the RS485 isolation conversion circuit is connected with the RS485 communication interface and is used for processing the original signal received by the RS485 communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit;
the RS232 conversion circuit is connected with the RS232 communication interface and is used for processing the original signal received by the RS232 communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit;
the TT L conversion circuit is connected with the TT L communication interface and used for processing the original signals received by the TT L communication interface to obtain corresponding processing signals and transmitting the processing signals to the processing circuit;
the Ethernet interface circuit is connected with the L AN communication interface and is used for processing the original signal received by the L AN communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit;
the USB interface circuit is connected with the USB communication interface and used for processing the original signal received by the USB communication interface to obtain a corresponding processing signal and transmitting the processing signal to the processing circuit;
the processing circuit is connected with the interaction module and used for receiving a user instruction through the interaction module, converting the processing signal according to the user instruction to obtain an intermediate signal and transmitting the intermediate signal to the isolation conversion circuit through the pin header and the seat header;
the isolation conversion circuit is used for converting the intermediate signal into a target signal according to the user instruction and transmitting the target signal to a corresponding output module;
each output module in the plurality of output modules is connected with a corresponding output interface in the plurality of output interfaces, and is used for transmitting the corresponding target signal to the second external device through the corresponding output interface.
4. The circuit of claim 3 wherein the intermediate signal is a TT L level signal.
5. The circuit of claim 4, wherein the control circuit further comprises a DCDC power circuit, and the DCDC power circuit supplies power to the output switching circuit through the pin header and the socket header.
6. The circuit of claim 5, wherein the plurality of output modules comprise TT L output modules and/or RS485 output modules and/or RS232 output modules, and the plurality of output interfaces comprise TT L output interfaces and/or RS485 output interfaces and/or RS232 output interfaces correspondingly connected with the TT L output modules and/or RS485 output modules and/or RS232 output modules.
7. The circuit of claim 6, further comprising an IO output interface and an IO input interface, wherein the output switching circuit further comprises an IO output module connected to the IO output interface and an IO input module connected to the IO input interface.
8. The circuit of claim 7, wherein the interactive module communicates with the master module via a TT L interface.
9. The circuit of claim 8, further comprising an indication module, connected to the plurality of output interfaces respectively, for indicating the operating status of the output interfaces.
10. A communication equipment expansion device, characterized in that it comprises a communication equipment expansion circuit according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020086984.0U CN211124028U (en) | 2020-01-15 | 2020-01-15 | Communication equipment expansion circuit and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020086984.0U CN211124028U (en) | 2020-01-15 | 2020-01-15 | Communication equipment expansion circuit and device |
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| CN211124028U true CN211124028U (en) | 2020-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117149687A (en) * | 2023-09-05 | 2023-12-01 | 浙江东开半导体科技有限公司 | Signal transfer guarantee device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117149687A (en) * | 2023-09-05 | 2023-12-01 | 浙江东开半导体科技有限公司 | Signal transfer guarantee device |
| CN117149687B (en) * | 2023-09-05 | 2024-04-09 | 浙江东开半导体科技有限公司 | Signal transfer guarantee device |
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