Redundant gateway control method and industrial gateway

A technology of redundant gateways and control methods, applied in the field of gateways, can solve the problems of low usability, poor maintainability, increased parts and costs, etc., and achieve the effect of improving reliability, poor maintainability, and improving usability

Inactive Publication Date: 2020-04-10
MINGDU ZHIYUN (ZHEJIANG) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution mainly has the following disadvantages: redundant control channels and redundant interactive channels require a dedicated base, which increases additional components and costs; at the same time, due to the use of a dedicated base, only 1:1 hot standby redundancy can be achieved, which requires high reliability In some occasions, it is impossible to meet the needs through simple transformation, and the maintainability is poor; moreover, the application software needs to participate in the data acquisition judgment (when GW1 communication failure is found, GW2 data will be obtained), it needs to be customized, and the usability is low

Method used

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  • Redundant gateway control method and industrial gateway
  • Redundant gateway control method and industrial gateway
  • Redundant gateway control method and industrial gateway

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Experimental program
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Embodiment 1

[0036] attached figure 2 It is a schematic diagram of the steps of a redundant gateway control method disclosed in this embodiment, which is used to realize the redundancy of any number of gateways. This method can be applied to industrial gateways that need to emphasize reliability and maintainability and require long-term continuous operation , which specifically include:

[0037]Step S101, read the redundant gateway address table, wherein the redundant gateway address table includes the addresses of the gateways in the same redundant group and the external fixed addresses of the redundant group. The redundancy group is a plurality of mutually redundant gateway groups connected to the network. In the same redundancy group, there may be a master gateway, which not only has its own IP address, but also occupies a fixed external IP address of the redundancy group. The upper layer application software only exchanges data with the external fixed address through the redundancy ...

Embodiment 2

[0045] attached image 3 It is a schematic diagram of the steps of a redundant gateway control method disclosed in another embodiment. The redundant gateway control method specifically includes:

[0046] Step S201, read the redundant gateway address table, wherein the redundant gateway address table includes the addresses of the gateways in the same redundant group and the external fixed addresses of the redundant group.

[0047] In this embodiment, the redundant gateway address table is pre-written in the redundant configuration information table of each gateway, and each gateway works according to the redundant configuration information table. The configuration content of the redundancy configuration information table may include information such as whether it is redundant, the IP address of the gateway itself, the external fixed IP address of the redundancy group, the address table of the redundancy gateway, and the redundancy voting strategy. The entire redundancy group c...

Embodiment 3

[0059] attached Figure 4 An overall network structure diagram of redundant gateways is disclosed for an embodiment, wherein GW1, GW2, GW3...GWn are the gateways working on the network, D1, D2...Dn are the data collected by the gateways, and redundant configurations need to be written in each gateway Information table, the gateway works according to the redundant configuration information table. In each redundancy group, there is a master gateway. The master gateway not only has its own IP address, but also occupies the external fixed IP address of the redundancy group. The gateway of the redundancy group can follow the low address priority inheritance rule, that is, when the master gateway fails, the gateway with the smallest address in the redundancy group will inherit the function of the master gateway. The application software reads data from the external fixed IP address through the redundancy group, that is, the upper layer application software only needs to exchange da...

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Abstract

The invention discloses a redundant gateway control method. A redundant gateway address table containing gateway addresses in the same redundant group and external fixed addresses of the redundant group is set for a plurality of gateways in a network. When the gateway works, the redundant gateway address table can be read, whether other high-priority gateways exist in the redundant group or not isjudged according to the main gateway inheritance rule, if the other high-priority gateways do not exist, the redundant group is occupied to respond to external software data through an external fixedaddress, If not, the monitoring state is entered. According to the method, the redundancy gateway address table containing all other redundancy gateway addresses is arranged in the gateway to form aredundancy group concept, so that any N gateway redundancies can be realized. The external fixed address is fixed through the redundancy group, and the upper application software only needs to performdata interaction on the external fixed address through the redundancy group and does not need to perform data interaction with the addresses of all gateways of the redundancy group, so that the usability of gateway redundancy is greatly improved.

Description

technical field [0001] The invention relates to the technical field of gateways, in particular to an industrial gateway and a redundant gateway control method. Background technique [0002] Gateway redundancy is an indispensable technology in the network. When the network reliability is high, we must consider not only the performance of the network itself, but also the redundancy technology. Gateway redundancy realizes the damage of any single gateway in the system without affecting the overall function of the system, which greatly improves the reliability of network data transmission. At present, gateway redundancy widely uses 1:1 hot standby redundancy technology or 3 out of 2 voting redundancy technology. The 1:1 hot standby redundancy technology means that two identical gateways are in the running state at the same time, one side is in the normal working state and is sampling in real time, while the other side is in the standby state and does not participate in sampling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/22H04L12/66
CPCH04L1/22H04L12/66
Inventor 林宏飞张腾飞聂浩占志良徐文卿
Owner MINGDU ZHIYUN (ZHEJIANG) TECH CO LTD
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