CN112527339A

CN112527339A - VPN technology-based software remote upgrading method

Info

Publication number: CN112527339A
Application number: CN201910875290.7A
Authority: CN
Inventors: 黄立; 吴晖; 刘峻华; 曹斌; 詹健
Original assignee: Wuhan Haiyi Science & Technology Co ltd
Current assignee: Wuhan Haiyi Science & Technology Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2021-03-19

Abstract

The invention relates to a software remote upgrading method based on a VPN technology, and belongs to the technical field of automation and information. The software remote upgrading method is characterized in that related network transmission equipment is configured, remote encryption transmission of software files is achieved through an exclusive network established by a VPN technology, and the software is transmitted in a code format and installed in an application program storage area of the monitoring equipment. The monitoring equipment is communicated with the GPRS router through a network, the GPRS router is connected with the enterprise network server through a 3G/4G network to achieve VPN network connection, and the software upgrading office computer is communicated with the enterprise network server. The field monitoring equipment can be an industrial controller, such as a PLC, a DDC, a DCS and the like, and can also be a human-computer interface equipment provided with monitoring software, such as HMI, a PC and other related equipment, and the application range is wider. The invention makes the software upgrading which needs to be downloaded through the network simple and convenient, and has great convenience, reliability and stability.

Description

VPN technology-based software remote upgrading method

Technical Field

The invention relates to a software remote upgrading method based on a VPN technology, in particular to remote online upgrading of software of unattended control equipment, and belongs to the technical field of automation and information.

Background

At present, the function of upgrading and reconstructing software in real time is a function which certain equipment must have, particularly certain equipment which has a severe installation environment, is frequently updated, is unattended on site, such as a coal bed gas well remote monitoring system, after field installation and deployment, because field wells and external working conditions change and the acquisition scheme of coal bed gas needs to be adjusted in real time or errors in software operation sometimes need to be corrected and software functions need to be added, software upgrading of the existing coal bed gas well remote monitoring system can only be achieved by manually downloading and operating the software after reaching field dismounting equipment, because the coal-bed gas well is generally positioned in a geological remote area with rare human smoke, the coal-bed gas well usually reaches hundreds of kilometers in one round trip, thereby not only consuming time and labor, and moreover, great potential safety hazards exist for the coal bed gas well in the power-off, dismounting and power-on processes, and continuous collection and production of the coal bed gas are not facilitated.

The invention provides a software remote upgrading method based on a VPN technology, which can realize 'exclusive network' of a field network and a local enterprise network through the VPN technology, realize remote upgrading of field equipment software, avoid frequent rush to the field of equipment and carry out unsafe electric operation, eliminate various unsafe operations, ensure high efficiency of equipment production and save enterprise cost.

Disclosure of Invention

The invention aims to solve the problems of inconvenient operation, production inconvenience and potential safety hazard easily caused in the existing field device software upgrading process, and provides a VPN-based software remote upgrading method.

The purpose of the invention is realized by the following technical scheme.

The VPN-based software remote upgrading method comprises the following steps.

Step 1, building a local enterprise network server with a public network access function.

And 2, connecting the on-site monitoring equipment program downloading interface with the GPRS router with the VPN function.

And 3, realizing network intercommunication between the GPRS router and the field monitoring equipment.

And 4, realizing the 3G/4G network connection of the GPRS router.

And 5, establishing an exclusive network between the GPRS router and the enterprise network server on the enterprise network server through an IPSec VPN technology.

And 6, establishing connection between the local computer and the field monitoring equipment through the VPN network.

And 7, downloading the program to finish the remote upgrading of the software.

Drawings

FIG. 1 is a diagram of a monitoring system and a remote upgrade network topology.

Fig. 2 remote upgrade network profile.

Detailed Description

In order that the invention may be more readily understood, reference will now be made in detail to the accompanying drawings.

FIG. 1 is a monitoring system and remote upgrade network topology:

step 10, monitoring equipment is communicated with all field equipment through a bus;

step 11/12/13 is a field installed production and monitoring device;

step 14 is a GPRS router, which communicates through a 3G/4G mobile network;

step 15, 3G/4G mobile network signal forwarding equipment, which is generally a communication satellite, a mobile signal tower and the like;

step 16, an enterprise network server realizes public network connection;

step 17 is an office computer used for upgrading the software, and the office computer can be connected with an enterprise network server.

Fig. 2 is a remote upgrade network profile, arranging the network connection IP configuration of the relevant devices:

step 21, monitoring equipment IP setting, and setting the equipment IP setting as an IP address 1;

step 22/23 is similar to step 21;

step 24, setting an IP of the GPRS router, wherein the IP comprises two IP addresses, the IP address 11 is communicated with the monitoring equipment network, and the IP address 12 is communicated with the enterprise network server;

step 25/26 is similar to step 24;

step 27, setting an enterprise network server IP, wherein the IP address 4 is communicated with a GPRS router network through VPN, and the IP address 5 is communicated with a computer inside the enterprise network;

and 28, setting the IP address of the office computer inside the enterprise, and realizing the intercommunication of the IP address 6 and the enterprise network server.

Claims

1. A software remote upgrading method based on VPN technology is characterized in that the network intercommunication between an office computer inside an enterprise and field equipment of a monitoring device can be realized, and the remote upgrading of software is realized.

2. The method as claimed in claim 1, wherein the monitoring field device is networked with an office computer inside the enterprise.

3. The VPN technology-based software remote upgrading method according to claim 1, wherein environment building and network configuration of remote monitoring equipment, local office computers and intermediate network equipment are realized, and the method mainly comprises the following steps:

A. building a local enterprise network server and having a function of accessing a public network;

B. network connection between the field monitoring equipment and the GPRS router is realized, and the monitoring equipment can be accessed through the GPRS router;

C. configuring an external network connection IP address of the GPRS router to enable the GPRS router to access an external network through a 3G/4G network;

D. configuring an enterprise network server, establishing network connection with a GPRS router through a VPN technology, and establishing an exclusive network between the enterprise network server and the GPRS router;

E. configuring an enterprise office computer, and establishing network intercommunication between the computer and an enterprise network server;

F. the enterprise office computer can access the field monitoring equipment through the enterprise network server and the GPRS router;

G. the enterprise office computer can directly download the upgrade software to the field monitoring equipment.

4. The VPN-technology-based software remote upgrading method according to claim 3, wherein an enterprise network server and a GPRS router are required to implement remote intercommunication between the field monitoring device and an enterprise internal office computer, and a corresponding network is built.

5. The VPN-technology-based software remote upgrading method according to claim 3, wherein a network connection is required to be established between the field monitoring device and the GPRS router, and a network direct connection is generally adopted to configure a monitoring device IP address and a network IP address in the GPRS router, so that the GPRS router can access the monitoring device.

6. A method for remotely upgrading software based on VPN technology as claimed in claim 3, characterized in that a GPRS router with VPN functionality is selected, and its external network IP address is configured to enable it to establish a network connection to the VPN server of the enterprise network server.

7. The VPN-technology-based software remote upgrading method according to claim 3, wherein a network server of an enterprise is equipped to access a public network, and a VPN server is built on the server.

8. The VPN-technology-based software remote upgrading method according to claim 3, wherein an internal office computer can access an enterprise network server, and access to remote monitoring equipment is realized through a 'private network' built by the network server and a GPRS router, so that remote upgrading of monitoring equipment software is realized.