CN103701452A - Multifunctional communication interface signal converter - Google Patents
Multifunctional communication interface signal converter Download PDFInfo
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- CN103701452A CN103701452A CN201210364823.3A CN201210364823A CN103701452A CN 103701452 A CN103701452 A CN 103701452A CN 201210364823 A CN201210364823 A CN 201210364823A CN 103701452 A CN103701452 A CN 103701452A
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- signal
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- conversion chip
- uart
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Abstract
The invention is suitable for the communication field, and provides a multifunctional communication interface signal converter. The multifunctional communication interface signal converter comprises an external UART (Universal Asynchronous Receiver/transmitter) interface; an interconnect selection unit connected with the external UART interface; a conversion chip unit connected with the interconnect selection unit; a signal interface unit connected with the conversion chip unit; a power selection unit connected with the conversion chip unit, the signal interface unit and an external power supply. The converter provided by the invention can realize mutual conversion among USB (Universal Serial Bus) signal, a RS232 signal, a RS485 signal and a UART signal by firstly converting the USB signal, the RS232 signal and the RS485 signal to UART signals and then interconnecting the converted UART signals according to requirement, thereby solving the problem that a most of devices can not be interconnected due to different communication interfaces when needing interconnection, and realizing multi-interface mutual conversion on a single board. Additionally, the converter provided by the invention adopts a plurality of power supply manners to meet the use of different application occasions.
Description
Technical field
The invention belongs to the communications field, relate in particular to a kind of multifunctional communication interface signal transducer.
Background technology
Along with developing rapidly of contemporary electron trade, all kinds of interface standards also continue to bring out.For certain electronic product or equipment, its external debug or PORT COM only have a kind of mostly, and different equipment, the interface staying outward is also had nothing in common with each other.Now, if need distinct device is interconnected, just need interface conversion instrument.And at present, interface convertor institute switching signal is generally all very single, can only realize the single conversion to RS485 as RS232, or function is complete not, can not tackle the problem of unlike signal interface conversion.
Summary of the invention
The embodiment of the present invention provides a kind of multifunctional communication interface signal transducer, is intended to solve existing interface convertor switching signal single, can not tackle the problem of unlike signal interface conversion.
The embodiment of the present invention is achieved in that a kind of multifunctional communication interface signal transducer, and described multifunctional communication interface signal transducer comprises:
Outside UART interface;
The interconnected selected cell being connected with described outside UART interface;
The conversion chip unit being connected with described interconnected selected cell;
The signal interface unit being connected with described conversion chip unit; And
The power supply selected cell being connected with external power source with described conversion chip unit, signal interface unit.
The embodiment of the present invention is first converted to UART signal by USB, RS232, RS485 signal, then again that the UART signal after changing separately is interconnected as required, to realize the mutual conversion between USB, RS232, RS485, UART signal, solved most of equipment communication interface when needs are interconnected inconsistent caused cannot be interconnected problem, on veneer, having realized many interfaces turns mutually, and adopt multiple supply power mode, meet the use of various application occasions.
Accompanying drawing explanation
Fig. 1 is the principle assumption diagram of the multifunctional communication interface signal transducer that provides of the embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows the theory structure of the multifunctional communication interface signal transducer that the embodiment of the present invention provides, and for convenience of explanation, only shows part related to the present invention.
This multifunctional communication interface signal transducer, comprise outside UART interface 1, the interconnected selected cell 2 being connected with outside UART interface 1, the conversion chip unit 3 being connected with interconnected selected cell 2, the signal interface unit 4 being connected with conversion chip unit 3, and the power supply selected cell 5 being connected with external power source with conversion chip unit 3, signal interface unit 4.
The RS232 interface 41 being connected with RS232 conversion chip 31;
The RS485 interface 42 being connected with RS485 conversion chip 32; And
The USB interface 43 being connected with USB conversion chip 33.
When work, conversion chip unit is converted to UART signal by the RS232 interface 41 in signal interface unit 4, RS485 interface 42 and the received respective signal of USB interface 43, then again that the UART signal after changing separately is interconnected as required, to realize the mutual conversion between USB, RS232, RS485, UART signal.
Circuit of the present invention adopts integrated chip mode to realize.
As a kind of preferred implementation of the present invention, the embodiment of the present invention provides serial ports power taking, and USB power supply, and three kinds of supply power modes of externally fed, and built-in power supply priority, can realize power supply by power supply selected cell 5 and automatically switch.In three kinds of supply power modes, take externally fed as optimal selection, be secondly USB power supply, be finally serial ports power taking.
The present invention is first converted to UART signal by USB, RS232, RS485 signal, then again that the UART signal after changing separately is interconnected as required, to realize the mutual conversion between USB, RS232, RS485, UART signal, solved most of equipment communication interface when needs are interconnected inconsistent caused cannot be interconnected problem.Compared with prior art, the present invention has realized many interfaces and has turned mutually on veneer, and adopts multiple supply power mode, meets the use of various application occasions.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a multifunctional communication interface signal transducer, is characterized in that, described multifunctional communication interface signal transducer comprises:
Outside UART interface;
The interconnected selected cell being connected with described outside UART interface;
The conversion chip unit being connected with described interconnected selected cell;
The signal interface unit being connected with described conversion chip unit; And
The power supply selected cell being connected with external power source with described conversion chip unit, signal interface unit.
2. multifunctional communication interface signal transducer as claimed in claim 1, is characterized in that, described conversion chip unit comprises:
The RS232 conversion chip, RS485 conversion chip and the USB conversion chip that are connected with described interconnected selected cell respectively.
3. the multifunctional communication interface signal transducer as described in claim 1,2, is characterized in that, described signal interface unit comprises:
The RS232 interface being connected with described RS232 conversion chip;
The RS485 interface being connected with described RS485 conversion chip; And
The USB interface being connected with described USB conversion chip.
4. multifunctional communication interface signal transducer as claimed in claim 1, is characterized in that, described multifunctional communication interface signal transducer adopts integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210364823.3A CN103701452A (en) | 2012-09-27 | 2012-09-27 | Multifunctional communication interface signal converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210364823.3A CN103701452A (en) | 2012-09-27 | 2012-09-27 | Multifunctional communication interface signal converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103701452A true CN103701452A (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210364823.3A Pending CN103701452A (en) | 2012-09-27 | 2012-09-27 | Multifunctional communication interface signal converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104615205A (en) * | 2015-02-13 | 2015-05-13 | 成都万创科技有限责任公司 | Industrial tablet personal computer with a multifunctional interface |
| CN105376560A (en) * | 2014-08-22 | 2016-03-02 | 中国科学院西安光学精密机械研究所 | Universal adapter plate applicable between camera and acquisition computer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0962869A1 (en) * | 1998-06-02 | 1999-12-08 | Abb Control | Dual-standard interface circuit for serial link |
| CN102063400A (en) * | 2011-01-06 | 2011-05-18 | 北京天地融科技有限公司 | Switching device for general serial bus equipment |
| CN202167015U (en) * | 2011-08-19 | 2012-03-14 | 湖南文理学院 | Serial interface converting circuit |
| CN202435421U (en) * | 2012-01-04 | 2012-09-12 | 上海工业自动化仪表研究院 | Multifunctional HART (highway addressable remote transducer) communication interface |
| CN202906873U (en) * | 2012-09-27 | 2013-04-24 | 深圳市朗驰欣创科技有限公司 | Multi-functional communication interface signal converter |
-
2012
- 2012-09-27 CN CN201210364823.3A patent/CN103701452A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0962869A1 (en) * | 1998-06-02 | 1999-12-08 | Abb Control | Dual-standard interface circuit for serial link |
| CN102063400A (en) * | 2011-01-06 | 2011-05-18 | 北京天地融科技有限公司 | Switching device for general serial bus equipment |
| CN202167015U (en) * | 2011-08-19 | 2012-03-14 | 湖南文理学院 | Serial interface converting circuit |
| CN202435421U (en) * | 2012-01-04 | 2012-09-12 | 上海工业自动化仪表研究院 | Multifunctional HART (highway addressable remote transducer) communication interface |
| CN202906873U (en) * | 2012-09-27 | 2013-04-24 | 深圳市朗驰欣创科技有限公司 | Multi-functional communication interface signal converter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105376560A (en) * | 2014-08-22 | 2016-03-02 | 中国科学院西安光学精密机械研究所 | Universal adapter plate applicable between camera and acquisition computer |
| CN104615205A (en) * | 2015-02-13 | 2015-05-13 | 成都万创科技有限责任公司 | Industrial tablet personal computer with a multifunctional interface |
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Application publication date: 20140402 |