CN218850797U

CN218850797U - Communication protocol conversion device

Info

Publication number: CN218850797U
Application number: CN202320081453.6U
Authority: CN
Inventors: ***
Original assignee: Yunnan Boke Energy Technology Co ltd
Current assignee: Yunnan Boke Energy Technology Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-04-11
Anticipated expiration: 2033-01-13

Abstract

The utility model discloses a communication protocol conversion device belongs to the communication field, communication protocol conversion device include treater, ethernet conversion module, serial ports conversion module, SDRAM module, FLASH storage module, serial ports conversion module input and serial ports communication line be connected, serial ports conversion module output is connected with the treater, the treater output is connected with ethernet conversion module, the output of ethernet conversion module passes through the RJ45 interface and is connected with the ethernet, SDRAM module and FLASH storage module are connected with the treater. The utility model provides a because its communication protocol is inconsistent, communication interface is different, and it is inconvenient to cause data transmission, will change the hardware of existing equipment, makes its access computer network that can be convenient, and the difficulty is great.

Description

Communication protocol conversion device

Technical Field

The utility model belongs to the communication field, more specifically the utility model relates to a communication protocol conversion device that says so.

Background

With the continuous improvement of the automation level of a factory building, data of a plurality of automation devices and measurement and control devices need to be transmitted to a computer monitoring system. The computers mainly realize data interaction through network communication. The communication interface provided by a plurality of devices on site is an asynchronous serial interface RS-232C/RS 485, the data transmission is inconvenient because the communication specifications of the devices are different and the communication interfaces are different, and the hardware of the original device needs to be changed so that the original device can be conveniently accessed into a computer network, which is difficult to realize.

SUMMERY OF THE UTILITY MODEL

The utility model discloses conversion equipment provides a plurality of serial ports and net gape, can solve a plurality of serial port equipment's networking problem. The device adopts an embedded ARM platform to realize the protocol conversion function. Aiming at different serial port protocols, the receiving and processing of the serial port data can be completed only by selecting a serial port communication mode, and the method has good flexibility.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme: the communication protocol conversion device comprises a processor 1 for data conversion and processing, an Ethernet conversion module 2 for Ethernet transmission of data, a serial port conversion module 3 for receiving data transmitted by different serial ports, an SDRAM module 4 for a dynamic synchronous memory of the processor 1, and a FLASH storage module 5 for data storage of the processor 1;

the input end of the serial port conversion module 3 is connected with a serial port communication circuit, the output end of the serial port conversion module 3 is connected with the processor 1, the output end of the processor 1 is connected with the Ethernet conversion module 2, the output end of the Ethernet conversion module 2 is connected with the Ethernet through an RJ45 interface, and the SDRAM module 4 and the FLASH storage module 5 are connected with the processor 1.

Further, the communication protocol conversion device also comprises a power supply circuit 6, the power supply circuit 6 has two-way power supply outputs of 5V and 3.3V, and the output end of the power supply circuit 6 supplies power for the protocol conversion device.

Further, the communication protocol conversion device further comprises a touch display module 7, and the touch display module 7 is connected with the processor 1 and is used for displaying the working state and data of the conversion device.

Further, the communication protocol conversion device further comprises a keyboard module 8, an output end of the keyboard module 8 is connected with an input end of the processor 1, and the keyboard module 8 can set parameters of the conversion device.

Further, the processor 1 adopts an AM3359 as a core processor 1, the serial port conversion module 3 adopts an MAX232 chip and an ADM2483 chip, and the ethernet conversion module 2 adopts two PHY chips AR8035.

The utility model discloses beneficial effect:

The problem that data transmission is inconvenient due to the fact that communication protocols are inconsistent and communication interfaces are different is solved, and the problem that hardware of original equipment needs to be changed so that the original equipment can be conveniently connected to a computer network is high in difficulty.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a system block diagram of the present invention;

fig. 2 is a circuit diagram of the serial port conversion module of the present invention;

fig. 3 is a circuit diagram of the ethernet conversion module of the present invention;

fig. 4 is a circuit diagram of the touch display module of the present invention;

fig. 5 is a circuit diagram of the keyboard module of the present invention.

In the figure, a processor 1, an Ethernet conversion module 2, a serial port conversion module 3, a SDRAM module 4, a FLASH storage module 5, a power circuit 6, a touch display module 7 and a keyboard module 8 are arranged.

Detailed Description

Embodiments of the present disclosure will be described with reference to the accompanying drawings, and for the purpose of clarity, numerous implementation details will be set forth in the description below. It should be understood, however, that these practical details should not be used to limit the disclosure. That is, such practical details are not necessary in some embodiments of the present disclosure. In addition, some conventional structures and elements are shown in the drawings in a simple schematic manner for the sake of simplifying the drawings.

As shown in fig. 1-5, the communication protocol conversion apparatus includes a processor 1 for data conversion and processing, an ethernet conversion module 2 for ethernet transmission of data, a serial port conversion module 3 for receiving data transmitted from different serial ports, an SDRAM module 4 for dynamic synchronous memory of the processor 1, and a FLASH memory module 5 for data storage of the processor 1;

The processor 1 adopts AM3359 as a core processor 1, an external extension Ethernet conversion chip and a serial port conversion chip to realize the hardware connection of Ethernet and serial port equipment, the AM3359 is a 32-bit processor 1 based on ARMCotex-A8, and the main frequency is highest and supported at 720MHz. The AM3359 integrates two 10/100/1000Mb/s Ethernet controllers, each controller supports MII/RMII/RGMII and MDIO interfaces, facilitates the expansion of a future network interface, supports up to 6 paths of UART interfaces, supports LPDDR1/DDR2/DDR memory, supports MMC/SD/SDIO interfaces and the like, and meets the hardware requirements of the current intelligent protocol conversion device. External extensions 512 MSDRAMs and 512MFlash for operating system operating needs. The external extended TF card is mainly used to update programs to the operating system.

The communication protocol conversion device also comprises a power circuit 6, the power circuit 6 has two-way power output of 5V and 3.3V, and the output end of the power circuit 6 supplies power for the protocol conversion device. The power supply circuit 6 converts the externally input 12V-48V DC voltage into 5V voltage and 3.3V voltage required by the operation of the internal chip.

The communication protocol conversion device also comprises a touch display module 7, wherein the touch display module 7 is connected with the processor 1 and is used for displaying the working state and data of the conversion device. The communication protocol conversion device also comprises a keyboard module 8, wherein the output end of the keyboard module 8 is connected with the input end of the processor 1, and the keyboard module 8 can set parameters of the conversion device.

The Ethernet interface circuit mainly comprises two parts, namely an MAC controller and a physical layer interface, an AM3359 integrates two Ethernet MAC controllers, a physical layer chip needs to be externally expanded to provide an Ethernet physical layer channel, therefore, two PHY chips AR8035 are externally expanded, the AR8035 integrates a 10/100/1000Mb/s transceiver, an RGMII interface is supported, and the network communication function can be realized by matching with the AM 3359.

6 serial ports are integrated in the AM3359 chip, wherein the UART0 is used as a console, and development and debugging of programs are facilitated. The UART 1-UART 5 are used as universal serial ports. The serial port conversion module 3 adopts an MAX3232 chip to convert TTL level into RS232 level, and adopts an ADM2483 chip to convert TTL level into RS485 level. Through setting the jumper inside the device, the output interface is selected to be RS232 level or RS485 level, so that flexible configuration on site is facilitated.

The utility model discloses the theory of operation: will the utility model discloses a serial ports conversion module 3 is connected with the serial ports, and when the serial ports of connecting was RS232, selects the conversion type to be RS232 serial ports type through keyboard module 8, and MAX232 chip is opened through control automatically to treater 1, realizes RS232 serial communication's conversion. When the connected serial port is RS485, the conversion type is selected to be the RS485 serial port type through the keyboard module 8, and the ADM2483 is automatically started through control by the processor 1, so that the conversion of the RS485 traditional communication protocol is realized. After the conversion of the serial port data is completed, the serial port data can be sent to the FLASH memory module 5 of the processor 1 for storage through the processing of the processor 1. Or the data is converted into the RJ45 communication mode through the Ethernet conversion module 2, and then the remote data transmission is carried out through the Ethernet network.

It should be understood that the above detailed description of the technical solution of the present invention with the help of preferred embodiments is illustrative and not restrictive. On reading the description of the present invention, those skilled in the art may modify the technical solutions described in the embodiments, or may substitute some technical features of the embodiments; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A communication protocol conversion apparatus, characterized in that: the communication protocol conversion device comprises a processor (1) for data conversion and processing, an Ethernet conversion module (2) for data Ethernet transmission, a serial port conversion module (3) for receiving data transmitted by different serial ports, an SDRAM (synchronous dynamic random access memory) module (4) for a dynamic synchronous memory of the processor (1), and a FLASH storage module (5) for data storage of the processor (1);

the input end of the serial port conversion module (3) is connected with a serial port communication line, the output end of the serial port conversion module (3) is connected with the processor (1), the output end of the processor (1) is connected with the Ethernet conversion module (2), the output end of the Ethernet conversion module (2) is connected with the Ethernet through an RJ45 interface, and the SDRAM module (4) and the FLASH storage module (5) are connected with the processor (1).

2. The communication protocol conversion apparatus according to claim 1, wherein: the communication protocol conversion device further comprises a power circuit (6), the power circuit (6) has two-way power output of 5V and 3.3V, and the output end of the power circuit (6) supplies power to the protocol conversion device.

3. The communication protocol conversion apparatus according to claim 1, wherein: the communication protocol conversion device further comprises a touch display module (7), wherein the touch display module (7) is connected with the processor (1) and is used for displaying the working state and data of the conversion device.

4. The communication protocol conversion apparatus according to claim 1, wherein: the communication protocol conversion device further comprises a keyboard module (8), wherein the output end of the keyboard module (8) is connected with the input end of the processor (1), and the keyboard module (8) can be used for setting parameters of the conversion device.

5. The communication protocol conversion apparatus according to claim 1, wherein: the processor (1) adopts AM3359 as a core processor, the serial port conversion module (3) adopts a MAX232 chip and an ADM2483 chip, and the Ethernet conversion module (2) adopts two PHY chips AR8035.