CN214311388U

CN214311388U - Multi-channel serial port control equipment based on TD-LTE5800 system

Info

Publication number: CN214311388U
Application number: CN202120620233.7U
Authority: CN
Inventors: 朱永权
Original assignee: Feilixin Information Security Technology Hangzhou Co ltd
Current assignee: Feilixin Information Security Technology Hangzhou Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-09-28
Anticipated expiration: 2031-03-26

Abstract

The utility model discloses a multi-channel serial port control device based on a TD-LTE5800 system, which comprises a power supply module, a main processor module, a storage module, a serial port module and an Ethernet module on a mainboard; the power module is provided with an external power interface, is connected with an alternating current 220V main processor module and is a 32-bit ARM9 processor chip, and is connected with the serial port module through the storage module by using an embedded Linux operating system to establish a data link; the main processor module realizes the receiving and sending of the IP data packet by controlling the reading and writing of the Ethernet module. The utility model discloses a combine serial communication technique and mobile wireless communication technique, the user just only need to be connected into ethernet and just can accomplish the real-time visit of data and to the remote control of equipment in any time and place, has good market spreading value.

Description

Multi-channel serial port control equipment based on TD-LTE5800 system

Technical Field

The utility model relates to an electronic equipment technical field, in particular to multichannel serial ports controlgear based on TD-LTE5800 system.

Background

With the rapid development and rapid popularization of mobile wireless technology, ethernet technology-based interconnection devices are commonly used in various fields. "letting all devices access the network" has become a necessary trend in the development of information society today. However, in the fields of industrial production, automation control and the like, a great amount of traditional RS232 serial communication equipment is adopted for data transmission, and serial communication is still used up to now due to the characteristics of simple transmission protocol, high reliability and the like. On the other hand, serial communication has a short transmission distance and cannot be connected to a mainstream network, so that the defects exist, and the future development faces huge challenges and pressure. Therefore, under such a situation, it is urgently needed to find a solution that allows a serial device to access the existing ethernet and perform data transmission without replacing the legacy device and without consuming a large amount of manpower and material resources.

In order to realize the unattended remote management function of each station machine room of the electric power and provide powerful guarantee for the efficient management and safe operation of the station machine rooms of the electric power, a solution is needed, a plurality of serial devices can be immediately networked, serial data is transmitted through Ethernet, the serial data is bidirectionally communicated with a far-end host or the far-end serial device in an interactive mode, the original limitation on the transmission distance is eliminated, and the unified centralized management of the devices is realized.

For the above reasons, in order to better solve the above technical problems, an economical and convenient solution combining the features of serial communication technology and mobile wireless communication technology is needed, and users can access data and remotely control devices at any time and place by connecting to ethernet.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem of non-contact discernment's security protection management, provide a controlgear who combines serial communication technique and mobile wireless communication technique.

In order to achieve the above object, the utility model adopts the following technical scheme: a multi-channel serial port control device based on a TD-LTE5800 system comprises a power supply module, a main processor module, a storage module, a serial port module and an Ethernet module, wherein the main processor module is arranged on a mainboard;

the power module is provided with an external power interface and is connected with alternating current of 220V;

the main processor module is a 32-bit ARM9 processor chip, and is connected with the serial port module through the storage module by using an embedded Linux operating system to establish a data link;

the main processor module realizes the receiving and sending of the IP data packet by controlling the reading and writing of the Ethernet module;

the Ethernet module is provided with a plurality of linear speed 100M interfaces.

Further, the device also comprises a 2500V photoelectric isolator which is arranged between the serial port module and the mainboard.

Further, the serial port module is an RS485 module interface.

Further, the serial port module is an RS422 module interface.

Further, the serial port module is an RS232 module interface.

Furthermore, the serial port module is a switching value input module interface, and the dry node input.

Furthermore, the serial port module is a switching value output module interface, and the dry node outputs.

Further, a lightning protection interface is also included, and the discharge current wave is 8/20 mus.

Further, the system also comprises a Console management module interface used for installing opening and network service configuration.

Further, the system also comprises a network management module interface which is used for SNMP network management operation interface management.

Has the advantages that: through the utility model discloses replace traditional RS232 serial interface and use in the electric power place, make originally serial equipment that does not possess networking function can network immediately, the distal end host computer can carry out high-efficient, safe, reliable remote interaction with these serial equipment. The system has the advantages that a plurality of serial port devices are networked, unified centralized management of the devices is realized, data are processed in a unified mode, powerful guarantee is provided for efficient management and safe operation of the electric power station machine room, and the system is an economical and convenient solution.

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.

Fig. 1 is a schematic front side view of the control device of the present invention;

fig. 2 is a rear schematic view of the control device of the present invention;

fig. 3 is a schematic diagram of the application of the control device of the present invention;

FIG. 4 is an Ethernet frame structure of the present invention;

reference numerals: the system comprises a power supply module 1, a serial port module 4, an Ethernet module 5, a lightning protection interface 6, a Console management module interface 7 and a network management module interface 8.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments so that the invention may be more clearly and intuitively understood.

As shown in fig. 1, fig. 2 and fig. 3, the first embodiment of the present invention is provided.

According to the embodiment, the multi-channel serial port control equipment based on the TD-LTE5800 system transmits the running conditions of environmental equipment of each station of electric power to a unified field monitoring management server of a monitoring machine room through a data network based on the TD-LTE5800 system, so that various remote intelligent equipment or subsystems can be monitored. The control equipment is connected with an external management server through an Ethernet module 5, and is connected with remote equipment based on an RS232 interface, remote equipment based on an RS485 interface, switching value detection, temperature and humidity monitoring of a machine room, smoke monitoring, infrared monitoring and the like through a serial port module. Therefore, all the operating parameters and operating states of various intelligent devices or subsystems can be checked in real time, and networking is flexible.

The first embodiment mainly comprises a hardware part and a software part, and the TD-LTE5800 system can be accessed to mobile 4G and 5G networks through a SIM card. The hardware part mainly comprises a power module 1, a main processor module, a storage module, a serial port module 4 and an Ethernet module 5 which are arranged on a mainboard; the system also comprises a 2500V photoelectric isolator, a lightning protection interface 6, a Console management module interface 7 and a network management module interface 8; the serial port module 4 is provided with an RS485 module interface, an RS422 module interface, an RS232 module interface, a switching value input module interface and a switching value output module interface.

The power module 1 of the first embodiment is provided with an external power interface for connecting alternating current 220V; the main processor module is a 32-bit ARM9 processor chip, and is connected with the serial port module 4 through a storage module by using an embedded Linux operating system to establish a data link; the main processor module realizes the receiving and sending of the IP data packet by controlling the reading and writing of the Ethernet module 5; the Ethernet module 5 is provided with a plurality of paths of line speed 100M interfaces; a 2500V photoelectric isolator is arranged between the serial port module 4 and the mainboard.

The first embodiment has the following interfaces:

32 switching value input interfaces, dry node input, 32 switching value input physical interfaces are female heads of two DB37 interfaces, 16 switching value inputs are output from each DB37, all the switching value inputs are isolated from the mainboard in a photoelectric mode, and the isolation voltage is 2500V.

32 switching value output interfaces, 32 switching value output physical interfaces are female heads of two DB37 interfaces, 16 switching value outputs are output from each DB37, all the switching value outputs are isolated from the mainboard in a photoelectric mode, the isolation voltage is 2500V, and the output switching value is in a dry node mode.

8 RS485 interfaces, 8 RS485 physical interfaces are 4 RJ45, each RJ45 is connected with 2 RS485, each RS485 is photoelectrically isolated from 2500V of a main board, each RS485 has an independent isolation signal ground, the interfaces are protected against lightning, and the lightning protection reaches IEC61000-4-5(8/20us current wave) differential mode of 6KV and impedance (2 omega); common mode is 6KV, and impedance (2 omega) standard.

8 RS232 interfaces, 8 RS232 physical interfaces are 4 RJ45, each RJ45 is connected with 2 RS232, each RS232 is photoelectrically isolated from 2500V of a main board, each path has an independent isolation signal ground, the interfaces are protected against lightning, and the lightning protection reaches IEC61000-4-5(8/20us current wave) differential mode of 6KV and impedance (2 omega); common mode is 6KV, and impedance (2 omega) standard.

8 RS422 interfaces, 8 RS422 physical interfaces are 4 RJ45, each RJ45 is connected with 2 RS422, each RS422 is photoelectrically isolated from 2500V of a main board, each path has an independent isolation signal ground, the interfaces are protected against lightning, and the lightning protection reaches IEC61000-4-5(8/20us current wave) differential mode of 6KV and impedance (2 omega); common mode is 6KV, and impedance (2 omega) standard.

The 4-way shared wire-speed 100M switched ethernet channel.

The Console management interface and the WEB SERVER are provided, and installation and opening are facilitated.

And providing an SNMP-based network management operation interface.

The software part of the first embodiment is responsible for protocol conversion workers, and the core is designed to be uplink and downlink communication, data packet strategy implementation, data buffer and parameter configuration. The 32-bit ARM9 different from the 8-bit or 16-bit MCU is used as a main processor chip, and a Linux system is used for managing a multitask program and multithreading concurrent service to realize network communication. The function of serving as a bridge between a remote host and serial equipment in the Ethernet is realized by transparent transmission of protocol conversion data by software and by using a stable, reliable and efficient embedded technology.

This embodiment one has the following features:

and receiving serial port data, temporarily storing the serial port data in a buffer area, and sending the serial port data through a wireless network port in an ip packet format.

And receiving the wireless network port data, temporarily storing the data in a buffer area, and writing the data into corresponding serial equipment in a serial frame format.

TCP SERVER mode, TCP CLIENT mode and UDP mode are supported.

In the SERVER mode, at most 4 remote hosts are simultaneously connected to one port, and redundant hosts need to wait.

And various TCP/IP protocols such as DHCP ARP are supported.

And dynamically monitoring the connection state and the data transmission state of the client.

And dynamically configuring parameters. Including device parameters, network parameters, serial port parameters, etc.

Remote parameter configuration and serial port mode parameter configuration.

Peer-to-peer device interaction, interaction with a remote host.

The number of supported serial ports is at most 32.

And multiple protocols of RS232, RS422 and RS485 are supported.

The number of the switching value input or output ports is supported to be 128 at most.

In this embodiment, a system parameter configuration is as follows:

as shown in fig. 4, the data packet is divided into two types, namely a PC- > gateway downlink packet and a gateway- > PC uplink packet, where the packets are described as follows:

the IP message has two protocols, one is a reliable TCP protocol of an overtime retransmission mechanism, and as serial port data belongs to TDM and time division multiplexing, and is generally real-time data, the TDM data is not suitable for the TCP protocol. A better alternative is to use another UDP protocol without a timeout retransmission mechanism and the UDP header has only 8 bytes which saves more bandwidth than the TCP header 20 bytes.

MAC header, lines 1-5 and 15, applies IEEE 802.3 standard.

IP header, lines 6-10, IP protocol is applicable.

UDP header, lines 11-12, UDP protocol is used.

Ethernet header, line 13, each parameter is customized.

Device number [ 12: 0], device address number.

Data type [ 2: 0],000: downstream serial data frame, PC- > gateway, 001: upstream serial data frame, gateway- > PC, 010: downstream brightness data frame, PC- > gateway, 011: uplink switching value data frame, gateway- > PC, 100: downlink ethernet data frame, PC- > gateway, 101: upstream ethernet data frame, gateway- > PC, 110: downlink network management frame, PC- > gateway, 111: uplink network management frame, gateway- > PC.

Serial port number [3:0], one slot can support 8 serial ports at most. 0-7 is serial port number, 15 is Ethernet information,

ethernet packet identification [3:0] if the serial number [3: if >1460 ethernet packet, split into two, the first size is: 1024 the second is the rest.

[3: 2], sequence number. [1],1: two, 0: singly, [0], 0: first, 1: and secondly, the second.

Effective frame length [ 7: 0] to count the effective frame length. For controlling frames less than 48 bytes in length.

Net load: 14 lines, payload size.

Switching value data: payload data 16 bytes 128 bits, [ 127: 0], switching value data 1: on 0: and off. The other bits are pad data.

The downlink network management frame format, PC sends to the gateway, the following requirements:

gateway looping test [ 7: 0], 8 hAA: for looping test, 8h 00: a normal mode.

RU slot number [ 4: 0], 5h1F are slot board numbers without this slot. There may be a maximum of 4 slots.

When the serial port number [7] is 1, the command corresponds to the loop test of the remote serial port, 0: and (4) normal.

Serial port number [3:0 and 4 are no serial ports, and at most 8 serial ports 0-7 can be provided.

Serial port mode 1: {6b000000, Parmode [ 1: 0]}.

Serial port mode 2: { Paren, Stopbit, Wordsize [ 1: 0], baudset [3: 0]}.

Parmode [ 1: 0], the format of the parity bit is set when PAREN is 1: odd check is carried out when 00 is true, even check is carried out when 01 is true, flag bit is carried out when 10 is true, MARK is carried out, 1 is carried out, blank bit is carried out when 11 is carried out, SPACE is carried out, and clear 0 is carried out.

Paren: if the bit is 1, generation and reception of a parity bit are permitted, and if the bit is 0, no parity bit is present.

Stopbit: with a 1 for two stop bits and a 0 for one stop bit.

Wordsize [ 1: 0], setting the word length, 5 data bits for 00, 6 data bits for 01, 7 data bits for 10, and 8 data bits for 11.

Selecting a Baud rate: baudset [3:0]

//(baudset[3:0]＝＝0):110:

//(baudset[3:0]＝＝1):300:

//(baudset[3:0]＝＝2):600:

//(baudset[3:0]＝＝3):1200:

//(baudset[3:0]＝＝4):2400:

//(baudset[3:0]＝＝5):4800:

//(baudset[3:0]＝＝6):9600:

//(baudset[3:0]＝＝7):14400:

//(baudset[3:0]＝＝8):19200:

//(baudset[3:0]＝＝9):38400:

//(baudset[3:0]＝＝10):56000:

//(baudset[3:0]＝＝11):57600:

//(baudset[3:0]＝＝12):115200:

//(baudset[3:0]＝＝13):128000:

//(baudset[3:0]＝＝14):256000:

//(baudset[3:0]＝＝15):512000:

The frame format of the uplink network management, LU to PC, requires as follows:

serial ports are in a looping state, equipment numbers are 1-7, and whether 8-1 serial ports are looped or not is judged, 1: looping, 0: and (4) normal.

Ethernet state 1, [ 5: 3] way 4 ethernet state, (LINK, 0: connected, 1: no-connected, SPD (0: 100M; 1: 10M), FDX (0: full duplex; 1: half duplex)), [ 2: 0] way 3 Ethernet status.

Ethernet state 2, [ 5: 3] way 2 Ethernet state, [ 2: 0] way 1 Ethernet state.

Serial port state 1, serial port transceiving state of 8 th-5 th paths (TX (1: data; 0: no data), RX (1: data; 0: no data)).

Serial port state 2, serial port transceiving state (TX, RX) of the 4 th-1 st path.

The first embodiment is suitable for the scenes of efficient management and safe operation of the electric power station machine room.

When the embodiment is used, the embodiment is connected between the management server and the serial device, the power supply is switched on, and then effective control management can be realized.

To sum up, compared with the prior art, the utility model has the substantive characteristics and progress, through linking to each other with serial equipment, make originally serial equipment that does not possess networking function can network immediately, the far-end host computer just can carry out high efficiency, safety, the remote interaction reliably with these serial equipment, network many serial port equipment, realize the unified centralized management of many equipment, unified data processing, provide powerful assurance for electric power station computer lab efficient management and safe operation, be an economic convenient controlgear, good market spreading value has.

The above description is only the preferred embodiment of the present invention, and the changes of the equivalent shape or the equivalent structure made by the contents of the description and the drawings of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. The utility model provides a multichannel serial ports controlgear based on TD-LTE5800 system which characterized in that: the mainboard comprises a power module (1), a main processor module, a storage module, a serial port module (4) and an Ethernet module (5);

the power module (1) is provided with an external power interface and is connected with alternating current of 220V;

the main processor module is a 32-bit ARM9 processor chip, and is connected with the serial port module (4) through the storage module by using an embedded Linux operating system to establish a data link;

the main processor module realizes the receiving and sending of IP data packets by controlling the reading and writing of the Ethernet module (5);

the Ethernet module (5) is provided with a plurality of paths of line speed 100M interfaces.

2. The multi-channel serial port control device based on the TD-LTE5800 system of claim 1, wherein: the device also comprises a 2500V photoelectric isolator which is arranged between the serial port module (4) and the mainboard.

3. The multi-channel serial port control device based on the TD-LTE5800 system of claim 1 or 2, wherein: the serial port module is an RS485 module interface.

4. The multi-channel serial port control device based on the TD-LTE5800 system of claim 1 or 2, wherein: the serial port module is an RS422 module interface.

5. The multi-channel serial port control device based on the TD-LTE5800 system of claim 1 or 2, wherein: the serial port module is an RS232 module interface.

6. The multi-channel serial port control device based on the TD-LTE5800 system of claim 1 or 2, wherein: the serial port module is a switching value input module interface and is used for dry node input.

7. The multi-channel serial port control device based on the TD-LTE5800 system of claim 1 or 2, wherein: the serial port module is a switching value output module interface and is used for dry node output.

8. The multi-channel serial port control device based on the TD-LTE5800 system of claim 1 or 2, wherein: also comprises a lightning protection interface (6) and a discharge current wave 8/20 mu s.

9. The multi-channel serial port control device based on the TD-LTE5800 system of claim 1 or 2, wherein: the system also comprises a Console management module interface (7) used for installing and opening and configuring the network service.

10. The multi-channel serial port control device based on the TD-LTE5800 system of claim 1 or 2, further comprising a network management module interface (8) for SNMP network management operation interface management.