CN112202657A - Digital multiplexing communication method - Google Patents
Digital multiplexing communication method Download PDFInfo
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- CN112202657A CN112202657A CN202011103445.4A CN202011103445A CN112202657A CN 112202657 A CN112202657 A CN 112202657A CN 202011103445 A CN202011103445 A CN 202011103445A CN 112202657 A CN112202657 A CN 112202657A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40032—Details regarding a bus interface enhancer
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Abstract
The invention discloses a digital multiplexing communication method, which comprises the following steps: s1: integrating RS232, RS485, UART, CAN and network port communication circuits on a communication circuit control panel; s2: connecting VCC, TX, RX and GND electric signals of an external communication circuit into a communication circuit control board; s3: setting a required communication port type and communication parameters through an upper computer; s4: the external communication port is connected with a standard RS232 interface of a computer host through the communication control panel. According to the invention, the baud rate, the start bit, the data bit, the check bit and the stop bit of each port can be freely set through a communication protocol between the communication boards of the upper computer, so that a standard RS232 port can correspond to 5 different communication modes; the VCC, TX, RX and GND electric signals of an external communication circuit are connected into a communication control board, the upper computer sets the type and the communication parameters of a required communication port, and the external communication port is connected with a standard RS232 interface of a computer host through the communication control board to carry out data interaction.
Description
Technical Field
The invention relates to the technical field related to a digital measurement system, in particular to a digital multiplexing communication method.
Background
The establishment of the digital measuring system comprises digital signal processing, data acquisition, programmable instrument control and communication between the testing system and the board to be tested, which CAN not be separated from standard communication modes of RS232, RS485, UART, CAN and network interface. The communication requirements are diversified for different products. By developing a composite communication circuit control board, the requirements of different equipment and various communication tests are met.
The existing communication modules are mutually converted between any two combinations of RS232, RS485, UART, CAN and network port communication, and on the premise that the communication ports of a computer host are limited. The communication mode of four standards of RS232, RS485, UART, CAN and network port CAN not be realized by one standard RS232 communication port, and the communication port CAN not be reused in a digital test system, so that the requirements of data communication, instrument control and product test of various types CAN not be realized.
Disclosure of Invention
The present invention is directed to a digital multiplexing communication method, which solves the problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a digital multiplexing communication method includes the following steps:
s1: integrating RS232, RS485, UART, CAN and network port communication circuits on a communication circuit control panel;
s2: connecting VCC, TX, RX and GND electric signals of an external communication circuit into a communication circuit control board;
s3: setting a required communication port type and communication parameters through an upper computer;
s4: the external communication port is connected with a standard RS232 interface of a computer host through the communication control panel.
Preferably, the MCU is connected with the RS232, the MCU is connected with the RS485, the MCU is connected with the network port, the MCU is connected with the computer host, the MCU is connected with the UART, and the MCU is connected with the CAN.
Preferably, the network port adopts an RJ45 network port.
Preferably, the external communication port includes a VCC pin, a TX pin, an RX pin, and a GND pin.
Compared with the prior art, the invention has the beneficial effects that: the baud rate, the start bit, the data bit, the check bit and the stop bit of each port can be freely set through a communication protocol between upper computer communication boards, and a standard RS232 port can correspond to 5 different communication modes; the VCC, TX, RX and GND electric signals of an external communication circuit are connected into a communication control board, the upper computer sets the type and the communication parameters of a required communication port, and the external communication port is connected with a standard RS232 interface of a computer host through the communication control board to carry out data interaction.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a digital multiplexing communication method includes the following steps:
s1: integrating RS232, RS485, UART, CAN and network port communication circuits on a communication circuit control panel;
s2: connecting VCC, TX, RX and GND electric signals of an external communication circuit into a communication circuit control board;
s3: setting a required communication port type and communication parameters through an upper computer;
s4: the external communication port is connected with a standard RS232 interface of a computer host through the communication control panel.
The MCU is connected with the RS232, the MCU is connected with the RS485, the MCU is connected with the network port, the MCU is connected with a computer host, the MCU is connected with the UART, the MCU is connected with the CAN, the network port adopts an RJ45 network port, and the external communication port comprises a VCC pin, a TX pin, an RX pin and a GND pin; RS232, RS485, UART, CAN and network port communication circuits are integrated on a communication circuit control board, and the communication type of each communication port is set and controlled by a single chip microcomputer; the control panel is communicated with a computer host by adopting a standard RS232 port; the baud rate, the start bit, the data bit, the check bit and the stop bit of each port can be freely set through a communication protocol between upper computer communication boards, and a standard RS232 port can correspond to 5 different communication modes; the VCC, TX, RX and GND electric signals of an external communication circuit are connected into a communication control board, the upper computer sets the type and the communication parameters of a required communication port, and the external communication port is connected with a standard RS232 interface of a computer host through the communication control board to carry out data interaction.
The working principle of the invention is as follows: the baud rate, the start bit, the data bit, the check bit and the stop bit of each port can be freely set through a communication protocol between upper computer communication boards, and a standard RS232 port can correspond to 5 different communication modes; the VCC, TX, RX and GND electric signals of an external communication circuit are connected into a communication control board, the upper computer sets the type and the communication parameters of a required communication port, and the external communication port is connected with a standard RS232 interface of a computer host through the communication control board to carry out data interaction.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A digital multiplexing communication method is characterized in that: the method comprises the following steps:
s1: integrating RS232, RS485, UART, CAN and network port communication circuits on a communication circuit control panel;
s2: connecting VCC, TX, RX and GND electric signals of an external communication circuit into a communication circuit control board;
s3: setting a required communication port type and communication parameters through an upper computer;
s4: the external communication port is connected with a standard RS232 interface of a computer host through the communication control panel.
2. The digital multiplexing-type communication method according to claim 1, wherein: the MCU is connected with the RS232, the RS485 and the network port, the MCU is connected with the host computer, the MCU is connected with the UART and the CAN.
3. A digital multiplex communication method according to claim 1 or 2, characterized in that: the net port adopts an RJ45 net port.
4. The digital multiplexing-type communication method according to claim 1, wherein: the external communication port comprises a VCC pin, a TX pin, an RX pin and a GND pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011103445.4A CN112202657A (en) | 2020-10-15 | 2020-10-15 | Digital multiplexing communication method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011103445.4A CN112202657A (en) | 2020-10-15 | 2020-10-15 | Digital multiplexing communication method |
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| CN112202657A true CN112202657A (en) | 2021-01-08 |
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| CN202011103445.4A Pending CN112202657A (en) | 2020-10-15 | 2020-10-15 | Digital multiplexing communication method |
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Citations (9)
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| US6940868B1 (en) * | 1999-04-20 | 2005-09-06 | Abb Inc. | Digital serial communications hub |
| CN103595598A (en) * | 2013-04-24 | 2014-02-19 | 安徽师范大学 | Remote transparent transmission serial server based on fiber and control mode thereof |
| CN104901877A (en) * | 2015-06-17 | 2015-09-09 | 燕山大学 | Multi-interface self-adaptive wireless heterogeneous network protocol conversion method and communication device |
| CN204832853U (en) * | 2015-06-24 | 2015-12-02 | 周茂林 | Many interfaces motion control ware |
| CN107171827A (en) * | 2017-04-19 | 2017-09-15 | 广州众志诚信息科技有限公司 | A kind of railway real-time ethernet TRDP gateways based on Linux platform |
| CN207799397U (en) * | 2017-12-28 | 2018-08-31 | 鞍山易兴自动化工程有限公司 | A kind of GPRS types RTU with suspend mode revival function |
| CN109525474A (en) * | 2018-12-06 | 2019-03-26 | 连云港杰瑞深软科技有限公司 | A kind of multiplex roles protocol-intelligent converter and conversion method based on Linux platform |
| CN210119679U (en) * | 2019-01-29 | 2020-02-28 | 杭州鑫高科技有限公司 | Networking controller for double-network-port material testing machine |
| CN210274115U (en) * | 2019-10-24 | 2020-04-07 | 珠海仪能科技有限公司 | External interface circuit for energy router |
-
2020
- 2020-10-15 CN CN202011103445.4A patent/CN112202657A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6940868B1 (en) * | 1999-04-20 | 2005-09-06 | Abb Inc. | Digital serial communications hub |
| CN103595598A (en) * | 2013-04-24 | 2014-02-19 | 安徽师范大学 | Remote transparent transmission serial server based on fiber and control mode thereof |
| CN104901877A (en) * | 2015-06-17 | 2015-09-09 | 燕山大学 | Multi-interface self-adaptive wireless heterogeneous network protocol conversion method and communication device |
| CN204832853U (en) * | 2015-06-24 | 2015-12-02 | 周茂林 | Many interfaces motion control ware |
| CN107171827A (en) * | 2017-04-19 | 2017-09-15 | 广州众志诚信息科技有限公司 | A kind of railway real-time ethernet TRDP gateways based on Linux platform |
| CN207799397U (en) * | 2017-12-28 | 2018-08-31 | 鞍山易兴自动化工程有限公司 | A kind of GPRS types RTU with suspend mode revival function |
| CN109525474A (en) * | 2018-12-06 | 2019-03-26 | 连云港杰瑞深软科技有限公司 | A kind of multiplex roles protocol-intelligent converter and conversion method based on Linux platform |
| CN210119679U (en) * | 2019-01-29 | 2020-02-28 | 杭州鑫高科技有限公司 | Networking controller for double-network-port material testing machine |
| CN210274115U (en) * | 2019-10-24 | 2020-04-07 | 珠海仪能科技有限公司 | External interface circuit for energy router |
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Application publication date: 20210108 |