CN209373587U - A kind of communication interface circuit - Google Patents
A kind of communication interface circuit Download PDFInfo
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- CN209373587U CN209373587U CN201920411252.1U CN201920411252U CN209373587U CN 209373587 U CN209373587 U CN 209373587U CN 201920411252 U CN201920411252 U CN 201920411252U CN 209373587 U CN209373587 U CN 209373587U
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- conversion chip
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Abstract
The utility model discloses a kind of communication interface circuits, more particularly to electric power networks accessories field, including main module A, the connecting pin the main module A is equipped with module B, module C and module D, main module A includes controller A, conversion chip A and Interface Terminal A, by the wiring of two-wire system half-duplex mode between the controller A and Interface Terminal A, the controller A output end is connect with conversion chip A, and module B includes controller B, conversion chip B and Interface Terminal B.The utility model is by being equipped with module B, module C and module D, when main module A plugs different module boards, the corresponding controller of the module can the automatically scanning insertion communication speed of module and matching, if scanning insertion module is that RS mode transmits signal, its signal can be carried out by corresponding conversion chip being converted into UART signal, to guarantee that insertion module can operate normally.
Description
Technical field
The utility model relates to electric power networks accessory technical fields, more specifically, originally practical to be related to a kind of communication interface
Circuit.
Background technique
In use, RS485 and UART are existing communication apparatus as the maximum two kinds of transmission modes of usage amount
It is irreplaceable, but because of the use of different electrical installations when can be unified because of the interface of software and hardware, not can guarantee the electric appliance
Be enough can normal use, being unable to satisfy client can be according to the demand that need to choose at random hardware interface connection type.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the embodiments of the present invention provide a kind of communication interface circuit, lead to
Cross when main module A plugs different module boards, the corresponding controller of the module can automatically scanning insertion module communication speed
Rate is simultaneously matching, if scanning insertion module is that RS mode transmits signal, can be carried out by corresponding conversion chip to its signal
It is converted into UART signal, to guarantee that insertion module can operate normally.
To achieve the above object, the utility model provides the following technical solutions: a kind of communication interface circuit, including main module
A, the connecting pin the main module A are equipped with module B, module C and module D；
Main module A includes controller A, conversion chip A and Interface Terminal A, is led between the controller A and Interface Terminal A
Two-wire system half-duplex mode wiring is crossed, the controller A output end is connect with conversion chip A；
Module B includes controller B, conversion chip B and Interface Terminal B, is passed through between the controller B and Interface Terminal B
Two-wire system half-duplex mode wiring, the conversion chip B and Interface Terminal B input terminal are connect with two output ends of controller B,
The conversion chip B output end is connected with Interface Terminal B input terminal；
Module C includes controller C and Interface Terminal C, and the controller C output end is connected with Interface Terminal C；
Module D includes controller D, conversion chip D and Interface Terminal D, the controller D output end and conversion chip D defeated
Enter end to be connected, the conversion chip D output end is connected with Interface Terminal D input terminal.
In a preferred embodiment, the Interface Terminal B, Interface Terminal C and Interface Terminal D be and Interface Terminal
A is set as identical Interface Terminal.
In a preferred embodiment, the conversion chip A, conversion chip B and conversion chip D are disposed as
CC2530 chip, the controller A, controller B, controller C and controller D are disposed as M68HC16 type single-chip microcontroller.
The technical effect and advantage of the utility model:
The utility model is by being equipped with module B, module C and module D, should when main module A plugs different module boards
The corresponding controller of module can the automatically scanning insertion communication speed of module and matching, if scanning insertion module is RS mode
When transmitting signal, its signal can be carried out by corresponding conversion chip being converted into UART signal, to guarantee that insertion module can be normal
Operation, and main module A, module B and module are all made of two-wire system half-duplex mode wiring, save the cost of user.
Detailed description of the invention
Fig. 1 is the integrated circuit schematic diagram of the utility model.
Fig. 2 is the main module A and module B circuit diagram of the utility model；
Fig. 3 is the main module A and module C circuit diagram of the utility model；
Fig. 4 is the main module A and module D circuit diagram of the utility model；
Description of symbols: 1 main module A, 11 controller A, 12 conversion chip A, 13 Interface Terminal A, 2 module B, 21 controls
Device B, 22 conversion chip B, 23 Interface Terminal B, 3 module C, 31 controller C, 32 Interface Terminal C, 4 module D, 41 controller D, 42
Conversion chip D, 43 Interface Terminal D.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of communication interface circuit, including main module A 1, and 1 connecting pin main module A is set
There are module B 2, module C 3 and module D 4, main module A 1 includes controller A 11, conversion chip A 12 and Interface Terminal A
13, by the wiring of two-wire system half-duplex mode between the controller A 11 and Interface Terminal A 13, the controller A 11 is defeated
Outlet is connect with conversion chip A 12, and module B 2 includes controller B 21, conversion chip B 22 and Interface Terminal B 23, described
Pass through the wiring of two-wire system half-duplex mode, the conversion chip B 22 and interface end between controller B 21 and Interface Terminal B 23
Sub- 23 input terminal of B is connect with two output ends of controller B 21,22 output end of conversion chip B and Interface Terminal B 23
Input terminal is connected.
As shown in Figs. 1-2, embodiment specifically:, can be first by interface end when main module A 1 is connect with module B 2
Sub- A 13 is connect with Interface Terminal B 23, if by module B 2 access be UART signal when, can directly through Interface Terminal B 23 by
Interface Terminal A 13 is transmitted to controller A 11, completes signal transformation task, if by module B 2 access be RS485 signal when,
Control conversion chip B 22 converts thereof into UART signal after via controller B 21 is scanned, then through Interface Terminal B 23 by interface end
Sub- A 13 is transmitted to controller A 11.
The main module A 1 includes controller A 11, conversion chip A 12 and Interface Terminal A 13, the controller A 11
Pass through the wiring of two-wire system half-duplex mode, 11 output end of controller A and conversion chip A 12 between Interface Terminal A 13
Connection, module C 3 include controller C 31 and Interface Terminal C 32,31 output end of controller C and 32 phase of Interface Terminal C
Even；
As shown in Figure 3, embodiment specifically:, can be first by Interface Terminal A when main module A 1 is connect with module C 3
13 connect with Interface Terminal C 32, if by module C 3 access be UART signal when, can be directly through Interface Terminal C 32 by interface
Terminal A 13 is transmitted to controller A 11, completes signal transformation task, if by module C 3 access be RS485 signal when, signal
Controller A 11 is transmitted to by Interface Terminal A 13 through Interface Terminal C 32, via controller A 11 controls conversion chip A after scanning
12 convert thereof into UART signal, then are transmitted back to controller A 11 through Interface Terminal A 13.
The main module A 1 includes controller A 11, conversion chip A 12 and Interface Terminal A 13, the controller A 11
Pass through the wiring of two-wire system half-duplex mode, 11 output end of controller A and conversion chip A 12 between Interface Terminal A 13
Connection, module D 4 include controller D 41, conversion chip D 42 and Interface Terminal D 43,41 output end of controller D with
42 input terminal of conversion chip D is connected, and 42 output end of conversion chip D is connected with 43 input terminal of Interface Terminal D；
As shown in Figure 4, embodiment specifically:, can be first by Interface Terminal A when main module A 1 is connect with module D 4
13 connect with Interface Terminal D 43, and when the UART signal accessed by module D 4, via controller D 41 controls conversion chip D 42 will
It is converted into RS485 signal, then is transmitted to controller A 11, via controller A 11 by Interface Terminal A 13 through Interface Terminal D 43
Conversion chip A 12 is controlled after scanning and converts thereof into UART signal, then is transmitted back to controller A 11 through Interface Terminal A 13, it is complete
At signal transformation task.
Utility model works principle:
Referring to Figure of description 1-4, Interface Terminal B 23, Interface Terminal C 32 and Interface Terminal D 43 are disposed as and connect
The identical external hardware Interface Terminal of mouth terminal A 13 passes through different stitch definition and selects different communication physical interfaces, communication
Rate can Auto-matching, when main module A 1 plugs different module boards, the corresponding controller of the module can automatically scanning insert
Enter the communication speed of module and matching, it, can be by corresponding conversion if scanning insertion module is that RS485 mode transmits signal
Chip carries out its signal to be converted into UART signal, to guarantee that insertion module can operate normally.
The several points that should finally illustrate are: firstly, in the description of the present application, it should be noted that unless otherwise prescribed and
It limits, term " installation ", " connected ", " connection " shall be understood in a broad sense, can be mechanical connection or electrical connection, be also possible to two
Connection inside element, can be directly connected, and "upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when
The absolute position for being described object changes, then relative positional relationship may change；
Secondly: the utility model discloses in embodiment attached drawing, relates only to the structure being related to the embodiment of the present disclosure,
His structure, which can refer to, to be commonly designed, and under not conflict situations, the utility model the same embodiment and different embodiments can be mutual
Combination；
Last: the above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in practical
Within novel protection scope.
Claims (3)
1. a kind of communication interface circuit, it is characterised in that: including main module A(1), the main module A(1) connecting pin is equipped with module
B(2), module C(3) and module D(4)；
Main module A(1) include controller A(11), conversion chip A(12) and Interface Terminal A(13), the controller A(11) with
Interface Terminal A(13) between by the wiring of two-wire system half-duplex mode, the controller A(11) output end and conversion chip A
(12) it connects；
Module B(2) include controller B(21), conversion chip B(22) and Interface Terminal B(23), the controller B(21) with connect
Mouthful terminal B(23) between pass through the wiring of two-wire system half-duplex mode, the conversion chip B(22) and Interface Terminal B(23) input
End connect with two output ends of controller B(21), the conversion chip B(22) output end and Interface Terminal B(23) input terminal
It is connected；
Module C(3) include controller C(31) and Interface Terminal C(32), the controller C(31) output end and Interface Terminal C
(32) it is connected；
Module D(4) include controller D(41), conversion chip D(42) and Interface Terminal D(43), the controller D(41) output
End is connected with conversion chip D(42) input terminal, the conversion chip D(42) output end is connected with Interface Terminal D(43) input terminal.
2. a kind of communication interface circuit according to claim 1, it is characterised in that: the Interface Terminal B(23), interface end
Sub- C(32) and Interface Terminal D(43) identical Interface Terminal is set as with Interface Terminal A(13).
3. a kind of communication interface circuit according to claim 1, it is characterised in that: the conversion chip A(12), conversion core
Piece B(22) and conversion chip D(42) be disposed as CC2530 chip, the controller A(11), controller B(21), controller C
(31) and controller D(41) be disposed as M68HC16 type single-chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920411252.1U CN209373587U (en) | 2019-03-29 | 2019-03-29 | A kind of communication interface circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920411252.1U CN209373587U (en) | 2019-03-29 | 2019-03-29 | A kind of communication interface circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209373587U true CN209373587U (en) | 2019-09-10 |
Family
ID=67824701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920411252.1U Active CN209373587U (en) | 2019-03-29 | 2019-03-29 | A kind of communication interface circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209373587U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111506533A (en) * | 2020-04-29 | 2020-08-07 | 广东天亿马信息产业股份有限公司 | Computer network interface |
| CN111756734A (en) * | 2020-06-24 | 2020-10-09 | 江西安百川电气有限公司 | Internal interconnection communication interface and protocol of frequency converter |
| CN113448898A (en) * | 2021-08-30 | 2021-09-28 | 成都万创科技股份有限公司 | Device and method for realizing multifunctional low-speed IO by using UART |
-
2019
- 2019-03-29 CN CN201920411252.1U patent/CN209373587U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111506533A (en) * | 2020-04-29 | 2020-08-07 | 广东天亿马信息产业股份有限公司 | Computer network interface |
| CN111756734A (en) * | 2020-06-24 | 2020-10-09 | 江西安百川电气有限公司 | Internal interconnection communication interface and protocol of frequency converter |
| CN113448898A (en) * | 2021-08-30 | 2021-09-28 | 成都万创科技股份有限公司 | Device and method for realizing multifunctional low-speed IO by using UART |
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