Method for remotely maintaining multiple terminals based on 3G network
A technology of remote maintenance and 3G network, applied in the field of remote maintenance of multiple terminals, to prevent DNS and IP spoofing, and to speed up transmission.
Inactive Publication Date: 2011-03-30
GUODIAN NANJING AUTOMATION
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Problems solved by technology
Routine maintenance is generally carried out by local staff through a local terminal connected to the LAN, but when an abnormal situation occurs or an on-site problem cannot be solved by the local staff, the technical personnel of the relevant manufacturer will rush to the scene to deal with the problem, and remote maintenance is a It is a convenient, efficient and low-cost maintenance method, but the speed of remote communication, the security of communication data, and the number of terminals that can be remotely maintained at the same time have become the key issues of remote maintenance
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[0019] figure 1 It is a schematic diagram of the networking of the present invention, figure 2 It is a schematic diagram of the software structure of the present invention, and the present invention will be described in detail below in conjunction with the accompanying drawings.
[0020] Such as figure 1 As shown, when remote maintenance work is required, the on-site staff first turns on the controlled terminal on site, connects to the 3G network through the 3G network card, and then starts the software program to encrypt the connection to the proxy server. At this time, the proxy server senses the connection of the on-site controlled terminal, and will send a message to the remote maintenance terminal, informing it that there is a controlled terminal that needs maintenance, or the remote maintenance terminal actively logs in to the proxy server, and finds out that there is an on-site controlled terminal that needs maintenance. . After learning that there are on-site contr...
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The invention relates to a method for remotely maintaining multiple terminals based on a 3G network, comprising the following steps of: setting up a proxy server used for intercepting port connection and NAT (Network Address Translation) port mapping of a controlled terminal; carrying out NAT port synchronous mapping on connecting ports of a plurality of controlled terminals by the proxy server subjected to 3G network encryption connection of the plurality of controlled terminals and the proxy server, and transforming the controlled terminals into remote maintenance ports; and carrying out data exchange on remote maintenance terminal software with the controlled terminal through the maintenance ports, thereby realizing maintenance work on each controlled terminal work station. The invention provides a multiterminal remote maintenance method which has the advantages of high speed, safety and low cost and overcomes the disadvantages of high maintenance cost and large human resource consumption of the traditional method.
Description
[0001] technical field [0002] The invention belongs to the technical field of communication, and in particular relates to a method for remotely maintaining multiple terminals based on a 3G network. Background technique [0003] In recent years, with the comprehensive popularization of computer technology and network technology, the application of information automation in various industries has also been vigorously developed. For example, many information collection devices in power plants, steel mills, and substations exchange, summarize, process, and count the collected information through LAN networking. Routine maintenance is generally carried out by local staff through a local terminal connected to the LAN, but when an abnormal situation occurs or an on-site problem cannot be solved by the local staff, the technical personnel of the relevant manufacturer will rush to the scene to deal with the problem, and remote maintenance is a It is a convenient, efficient and...
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IPC IPC(8): H04L29/08H04L29/06H04W24/04
Inventor 宋康朱伟袁珂俊
Owner GUODIAN NANJING AUTOMATION